#Versatile Polymer

[creativeera]

Polyethyleneimine: An Important Building Block in Various Applications In Industry

What is Polyethyleneimine?

Polyethyleneimine (PEI) is a polymeric compound composed of repeating units of ethyleneimine monomers. It is a white solid polymer that is soluble in water. PEI is classified as a branched or linear cationic polymer that is formulated through the polymerization of aziridine. The polymer's molecular weight can range from 300 to over 10,000 Daltons depending on its intended use. Properties and Structure of PEI

PEI is a polymer that contains secondary nitrogen atoms along its backbone that provide cationic charge centers. These nitrogen atoms can interact and form electrostatic bonds with negatively charged macromolecules or surfaces. The cationic nature of PEI allows it to act as a polycation and complex or condense with negatively charged substances like DNA or RNA. PEI is also very hygroscopic due to its numerous amine groups that attract water molecules. Its branched structure provides greater buffering capacity and DNA condensation ability compared to the linear form of PEI. Uses in Gene Delivery

One of the most important uses of Polyethyleneimine is in non-viral gene delivery applications. Its cationic charge allows it to efficiently bind and compact negatively charged nucleic acids like plasmids, forming nano-sized polyplexes that can transfect cells. The polyplexes are effectively endocytosed by cells and the low pH of endosomes triggers PEI to buffer the compartment, releasing the DNA from the complex. This "proton sponge" mechanism of PEI facilitates effective intracellular delivery and expression of the gene of interest. It is commonly used as a transfection agent for in vitro studies as well as in vivo gene therapies and vaccines. Role in Biomaterials and Tissue Engineering

Given its favorable properties, PEI also finds extensive use as biomaterials for tissue engineering applications. Its cationic nature permits binding of PEI to negatively charged components of the extracellular matrix like glycosaminoglycans. This helps direct cell adhesion, growth, and function. PEI can act as a coating onto implants and scaffolds, promoting their integration with surrounding tissues. It allows bioconjugation of signaling cues to influence cell behavior in regenerative therapies as well. The tunable properties of PEI through controlling its molecular weight or branching also expand its utility in the design of biomaterials.

In addition to the major uses mentioned above, PEI has applications in many other fields due to its versatile characteristics. It acts as a flocculating agent in wastewater treatment processes to remove pollutants and purify water. PEI finds increasing importance as a hardener in epoxy resins used in manufacturing infrastructure and electronics. Its buffering ability makes it valuable as a non-corrosive alternative to replace hazardous chemicals in industrial cleaning agents as well. Overall, the unique polymeric structure and properties of PEI designate it as an essential building block material with myriad applications.

Get more insights on Polyethyleneimine

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Alice Mutum is a seasoned senior content editor at Coherent Market Insights, leveraging extensive expertise gained from her previous role as a content writer. With seven years in content development, Alice masterfully employs SEO best practices and cutting-edge digital marketing strategies to craft high-ranking, impactful content. As an editor, she meticulously ensures flawless grammar and punctuation, precise data accuracy, and perfect alignment with audience needs in every research report. Alice's dedication to excellence and her strategic approach to content make her an invaluable asset in the world of market insights.

(LinkedIn: www.linkedin.com/in/alice-mutum-3b247b137 )

[historyofguns]

In "Ayoob: Compact Springfield Echelon 4.0C Review" by Massad Ayoob, the article reviews the new Springfield Armory Compact Echelon 4.0C pistol, a smaller version of the 4.5F model chambered for the 9x19mm Parabellum cartridge. A key feature of this handgun is its modular Central Operating Group and Variable Interface System, which support various red dot sights without adapter plates. The Echelon 4.0C is designed as a compact, user-friendly version with a 4-inch barrel and a 15-round magazine capacity, expanding versatility for concealed carry. During testing, the gun shows reliable performance with no malfunctions across different users and conditions. The pistol's well-designed trigger, ergonomic grip with adaptive texture, and compatibility with everyday carry gear make it an appealing option for personal defense, with suggestions of its potential popularity among gun enthusiasts.

[accessibilitysolutionsca]

Durable and Versatile Polymer Tactile Warning Plates

Discover the benefits of polymer tactile warning plates, designed for durability and versatility in various environments. These cost-effective, slip-resistant solutions ensure accessibility and safety compliance, making them ideal for public spaces and commercial buildings. Learn about their features and applications.

[medicaldevicesindustrynews]

Exploring the Dynamics of the Acrylic Acid Market: Unveiling Demand and

Acrylic acid, an important component in the chemical sector, has experienced substantial development and variation in the past few years. This multipurpose compound works as a building block for many items and has applications across many sectors. The global acrylic acid market revenue is estimated to have stood at USD 12.1 billion in 2023, advancing at a CAGR of 3.2% during 2024–2030, to reach…

[nevadancitizen]

-> CH. 1: A SILENT DOG & STILL WATERS

synopsis: the soviet union has been producing robots for a long time based on a miracle compound: polymer. but that was invented in 1941. the current year is 2038, and, due to rising tensions in the arctic, americans aren't as kind to soviets as they once were. it's too bad you're a russki, and it's really too bad that you work in cybersecurity. and honestly, with the case fowler has put you on, you're at risk of losing your job. it doesn't help that you're stuck with lieutenant hank anderson and some new android apparently called connor.

word count: 2.6k

ships: Connor/Reader, Hank Anderson & Reader

notes: based on an au i literally had a dream about. it's basically d:bh with elements of atomic heart :P this ch. is half exposition and half hank being an alcoholic lolololol

HEAD OF FALSE SECURITY MASTERLIST

The Soviet Union had always been very good at spying on and stealing American technology. They did so with the atomic bomb, the B-29 superfortress, and the space shuttle – with no lack of effort on America’s side of trying to keep them secret. 

But one thing set the USSR above the rest: polymer. A miracle compound that formed the backbone for every technological evolution that came after. It mimics a human neuron, including its ability to interpret input signals. With tinkering from top Soviet scientists (and a whole lot of luck), a gigantic neural network was established, the maximum computing power of which was orders of magnitude higher than the power of a conventional network.

With polymer, the Soviets reigned supreme as the only real international superpower. The other countries could play at being powerful, but the USSR was top dog – and she wasn’t keen on letting the others forget.

But that was in the past. And the past is boring. That was in 1941, and something you learn about in history class. Polymer is now regularly sold and traded and built upon and shared. After the Cold War ended, it was expanded outwards and is no longer a precious commodity. It was even needed to build a modern technology – androids. Ones that could pass the Turing test, unlike the TER-A1 Tereshkova (which was a human-looking robot, sure, but one that had an unsettling, unmoving mask for a face). 

And androids are simply better than Soviet bots. They’re versatile and able to be mass-produced without specialization development. They’re not big and clunky like the chimpanzee-esque MA-9 Belyash and can still accomplish the same installation, plumbing, and welding work. They can do the same agricultural work an ARU-31/6 Rotorobot can do without the risk of accidentally endangering humans while in use.

Again, they’re simply better. In the current year of 2038, American androids just trump similar Soviet tech in every way.

But that doesn’t mean that the Soviets aren’t still trying. They’ve invaded the Arctic with intent to claim the land, heavy with NA-T256 Natasha bots and the claim that the “heavy-duty ground-based loader bots can squeeze up to five liters of blood from a human body in under twenty seconds,” as a deterrent to American forces.

And this action has made your workplace a hell away from home.

Even though you immigrated from Chelomey, Russia to Detroit, Michigan in 2027, before all this business went down, people still eyed you warily – like you secretly enjoyed living under communism and the ever-watching eye of the Kremlin. Like you were just itching to get your grubby little paws on American secrets so you could report them to Comrade Molotov and a beautiful girl back home called Katya. Yeah, right.

These small, under-the-breath and glance-of-the-eye accusations weren’t helped by your current occupation: as a screen jockey for the Head of Cybersecurity of the Detroit Police. They acted like you hadn’t worked just as hard as everyone else for your position – for your polymer glove and the privileges that came with it.

Polymer gloves have come a long way from their prototype in 1955. They’re a single fingerless glove – one glove, as a person doesn’t need two – with an adjustable wrist strap. In the middle of the palm is a small silver star that can retract to expose prehensile, tentacle-like wires that can interface with terminals and other technology. 

But it doesn’t stop there – with a single gesture (holding your hand out and making an “L” shape) the glove can scan the surroundings of the user. Paired with an artificial polymer retina, the user can have information about the environment that they otherwise wouldn’t have. 

And, of course, you’re outfitted with the top versions of both – on the precinct’s credit card, obviously. 

But, again, you’re just a screen jockey. One of the best, but still just a worker bee that reports to a higher-up. There’s little to no interaction with the other departments, as cybersecurity is mostly isolated without any related crimes. Maybe cyberterrorism, but cases of that are few and far between. 

And you thought that’s all you’d ever be until you heard Fowler’s bellowing voice call your last name.

When you pop your head up from behind your terminal, you see him standing halfway through the glass door to his office. You swallow and trot over, a nervous idea tickling the back of your mind. Is he mad? Did you do something wrong? Shit… did you accidentally leak something?

You push open Fowler’s door and slowly shut it behind you. He’s sitting behind his desk, stark against the blue-grey backdrop of the wall behind him. His constantly furrowed brow and permanent frown lighten a little when he sees you.

You fold your hands behind your back politely. “Yes, sir?”

Fowler gestures to the seat in front of his desk. “Go ahead and take a seat.”

Oh, fuck. Oh, shit. You definitely did something wrong.

You walk over and sit in the chair. It screeches with a horrible sound.

You lean back in the chair and cross your arms. “What is this about, sir?”

Fowler leans back in his chair and drags a hand down his face. Immediately, the worst things pop into your head. You fight the urge to worry your bottom lip. 

“You have experience with androids, yes?” Fowler asks, but it doesn’t sound like a question – rather, a statement.

“Yes, sir.” You nod.

“And you have experience with Lieutenant Hank Anderson?” 

Your eyebrows furrow a little, but you still nod. “Yes, sir.”

Fowler turns to his terminal. “How do you feel about him?”

You bite your bottom lip as you think, then let it slip from your teeth. “I don’t know what you want me to say. He’s my friend. He is still a valuable member of the force, even if he has presented a few problems in the past couple of years.”

Fowler laughs. “A few?”

“Ah…” You smile, but it’s a bit forced. “More than a few. A lot. More problems than solutions, if I’m being honest.”

“That’s just how it goes sometimes.” He shrugs and sighs. “Do you know about the new case he’s been assigned?”

“Yes, sir,” you say. “He won’t shut up about it.”

He hums and leans forward, resting his chin on folded hands. “Always one for discretion, that one.”

You duck your head, instead looking down at your lap. “Yeah. But I think he can do better – be the cop he was before.”

“An optimistic Soviet.” Fowler laughs lowly. “That’s a new one.”

You just clench your jaw and meet his eyes. “What is this about? If you’ve called me in just to poke fun at me and gossip about Hank, I’d like to go back to my desk. Uh, sir.”

“No, no.” He holds a hand up. “Tell me what you’ve heard about Hank’s case.”

You think for a second. “Deviant androids murdering their owners. It sounds like it would’ve been labeled self-defense if it was a human-on-human crime, but…” you shrug. “I’m not in Homicide. I’m in Cybersecurity.”

“Well, you’re getting some experience.” Fowler pulls a cord from his terminal, one you recognize as a port compatible with a polymer glove. “You’re on the case.”

“I’m on the case?!” You repeat in disbelief. “Sir, I – I don’t –”

He holds up a hand for the second time. “I don’t want to hear it. You’re the best screen jockey with the most field experience I can spare.”

He gestures with the cord still in his hand. “Now, c’mon. Jack in and download the files.”

You swallow your objections and outstretch your gloved left hand. The thin metal of the star retracts, and the prehensile wires extend towards the port, waving like blades of grass. The ends of all six find their homes in the port, still wiggling like black tapeworms. 

Documents appear in the corner of your eye, one after another, like pop-up ads. You blink hard to dismiss them, then disconnect.

Fowler feeds the cord back into his terminal, then leans back in his chair. 

He looks over at you. “What’s that one saying you Soviets say? Something about champagne.”

You look up at him, then down to your glove. The star retracts, then goes back to its original position, like it was winking at you. “He who doesn’t take risks won’t drink champagne.”

“Well, I hope you have a taste for harder liquor,” Fowler says. “Hank’s at having a drink somewhere nearby. Go find him.”

And Lord, did you know right where to find Hank. 

On the door to Jimmy’s Bar is a firm warning, reading: NO ANDROIDS ALLOWED – OWNERS WILL BE PROSECUTED. You just hope that they don’t extend the same kindness to russkis. 

When you open the door, everyone in the bar turns to look at you. You nod and, once they see who you are, turn back to their conversations or nursing their drinks. 

You spot Hank at the bar with what looks like a Tennessee whiskey. You sidle up onto the barstool next to him, easing into the creaky seat. As you drape your rain-speckled coat on the back of the chair, you glance at the clock on the wall. It reads just before twenty past eleven.

“Bartender?” You call. Your thick accent immediately catches his attention, and so does the money you slide onto the bartop. “Vodka, please.”

The bartender, presumably Jimmy, picks up a bottle of Stolichnaya from the shelving behind him. “This good?”

You nod. “More than good.”

He pours vodka into a tumbler glass, then pushes it across the bar. You accept it readily, and the tiny sip you take gives your throat a nice burn on the way down.

“A Soviet and vodka,” Hank mumbles against the lip of his glass. “Like a moth to a flame.”

“It’s what my mother served with dinner,” you say. “I’m just glad Jimmy’s got enough sense not to keep us from his bar.”

Hank chuckles and raises his glass to that.

“Fowler’s gone beyond the pale.” You sip at your drink. “Have you heard?”

“Yup.” He sighs, setting his drink on the bartop harder than necessary. “Don’t know why a kid like you has business with an old timer like me.”

“Oh, believe me,” you say, your voice heavy with sarcasm. “It’s nice to visit, but it’s better to be home. I don’t know what he’s thinking. A Cybersecurity worker partnering up with someone in Homicide? Next, we’ll have androids doing our thinking and philosophy instead of our laundry and dishes.”

Hank snorts into his drink. “Hell, with all these runaways? They might as well be.”

“I mean, I can see his line of thinking.” You swirl the vodka in your glass, watching the way it catches and reflects the low light of the bar. “Cybersecurity, androids… makes sense, but me? A russki? With all that’s happening in the Arctic? If we don’t do well, my job is on the line.”

Hank sips his whiskey. “It really sounds like Fowler’s settin’ you up to fail.”

“Setting us both up to fail.” You correct and mirror him, sipping at your vodka. 

The sound of the door opening and the rain outside cuts into your conversation. Nothing you’d usually take a glance at, but what puts you off is the sudden silence of the bar. Bars shouldn’t be silent – especially not Jimmy’s.

You look over your left shoulder and see a nice looking man that’s just walked through the door. He looks a bit dorky, sure, and a bit like a lost puppy dog, but that could look nice on certain guys. And the asymmetrical tuft of loose hair that’s escaped his hair gel looks –

There’s a blue triangle just above where his left breast pocket would be. On the other side of his blazer reads RK800 in even, white text. He’s an android, not a man. He meets your gaze and you inhale sharply.

Your eyes return to your drink, and so does Hank’s. This isn’t what you want to deal with right now – or ever, actually. It’s Jimmy’s establishment, so it’s Jimmy’s problem.

But still, as soon as the android saw you, he started making a beeline for you. His footsteps are quick, measured, and even. 

“Excuse me,” he says, putting a hand on your shoulder. He addresses you by your title, and your gut clenches.

“No.” You try to wave him off. “No English. Sorry.”

“Officer, you passed each of your TestEaFL’s with flying colors,” he says, narrowing his eyes a little. “You can speak English perfectly fine.”

You cringe a little, but then a thought strikes you – how would this android have access to the scores of your Test of English as a Foreign Language? But before you can ask, he’s turned to Hank and started speaking.

“Oh, Lieutenant Anderson.” He moves so that he’s standing beside Hank. “Just the other person I was looking for.”

He glances between the two of you. “My name is Connor. I’m the android sent by CyberLife. Captain Fowler said that you were both having a drink nearby. I was lucky to find you at the fifth bar.”

You snort and your eyebrows shoot up. If you didn’t know better, you’d say that there was a hint of… something other than monotone indifference in his voice.

“What do you want?” Hank grinds out.

“You were assigned a case early this evening. A homicide, involving a CyberLife android.” Connor glances at you, like he’s reminding you that you were also assigned this case. “In accordance with procedure, the company has allocated a specialized model to assist investigators.”

“Well, I don’t need any assistance.” Hank jabs a thumb at you. “I’ve got all the unwanted assistance I need right here, and I don’t need any more. ‘Specially not from a plastic asshole like you. So just be a good lil’ robot and get the fuck outta here.”

“He’s right,” you chime. “And it doesn’t really look good to have androids investigating androids. What if you snap, too?”

“I will not.” Connor meets your eyes, and you can almost see the switch flick in that little android brain. Great, now it’s your turn to be grilled.

He circles so that he’s standing beside you and leans down a little, putting his hand on the bartop. You keep your eyes down, firmly on your drink. 

“I’m sorry, Officer, Lieutenant, but I must insist,” he says. “My instructions stipulate that I have to accompany both of you.”

“You know where you can stick your instructions?” Hank chimes in with a throaty laugh.

You glance over at Connor, who looks thoroughly confused. You smile and bring the glass to your lips. 

“No,” Connor says. “Where?”

Your throat seizes around the sip of vodka you were trying to take, causing you to cough it out as you try to suppress your laughter. You slam down the glass (effectively spilling most of it) and bring a hand to your chest, trying to ride it out as Hank pats your back.

“чёрт возьми!” You wheeze, your voice hoarse. Your chest burns. “Oh, fuck.”

You wipe your eyes as the burn dulls, still coughing slightly. Connor purses his lips before coming to a conclusion. 

“You know what?” He offers. “I’ll buy you both one for the road.”

“You better,” you say. “You made me spill mine.”

“Bartender!” Connor calls, and slips money onto the bartop. “The same again, please.”

“See that, Jim?” Hank says. “Wonders of technology. Make it a double.”

Jimmy pours a healthy amount of Jack Daniels into Hank’s glass, and starts to pour Stolichnaya into yours. You cut him halfway with a raised hand and a “Someone’s gotta drive us home safe.”

You knock back your drink, then let out a low whistle at the nice burn. Hank follows soon after and sighs heavily. 

He leans back and looks over at Connor. “Did you say homicide?”

[mindblowingscience]

A team of scientists has created a new shape-changing polymer that could transform how future soft materials are constructed. Made using a material called a liquid crystalline elastomer (LCE), a soft rubber-like material that can be stimulated by external forces like light or heat, the polymer is so versatile that it can move in several directions. Its behavior, which resembles the movements of animals in nature, includes being able to twist, tilt left and right, shrink and expand, said Xiaoguang Wang, co-author of the study and an assistant professor in chemical and biomolecular engineering at The Ohio State University.

Continue Reading.

[materialsscienceandengineering]

Shape-changing polymer resembles animal movements with temperature shifts

A team of scientists has created a new shape-changing polymer that could transform how future soft materials are constructed. Made using a material called a liquid crystalline elastomer (LCE), a soft rubber-like material that can be stimulated by external forces like light or heat, the polymer is so versatile that it can move in several directions. Its behavior, which resembles the movements of animals in nature, includes being able to twist, tilt left and right, shrink and expand, said Xiaoguang Wang, co-author of the study and an assistant professor in chemical and biomolecular engineering at The Ohio State University. "Liquid crystals are materials that have very unique characteristics and properties that other materials cannot normally achieve," said Wang. "They're fascinating to work with."

Read more.

[mcromwell]

Hey there! I normally paint with acrylics and was wanting to seal my finished pieces but.....am not sure what to do that with! I'm worried about my finished paintings being too glossy but also want to protect them. Do you have any products you would recommend? Thank you for your time.

Hi! Yeah, there's a couple options for sealing acrylic works that I use. I'm sure there are more out there but these are my favorites from what I have personally tried.

I use Liquitex gloss varnish for most of my pieces. It brushes on and does a good job at protecting pieces from damage, moisture, and UVs. The glossiness ensures your darks remain dark, too, it tends to deepen the colors in a nice way, but the tradeoff is that it's very shiny. (Always apply this in multiple thin layers--applied too thick, it makes a strange surface effect that is undesirable.)

Since I do mixed media a lot, some of my materials will re-activate if I brushed an acrylic varnish over them, such as pastels. For this, I use Minwax Polycrylic spray protective finish, since it will seal even chunky stuff like oil pastels. The Polycrylic is pricy but comes in a matte spray which deepens the colors, protects the surface, AND isn't too shiny! I like the satin finish, too, and the gloss... it's a good, versatile spray varnish I use for lots of stuff. My partner uses the matte to seal his acrylic painted polymer clay sculptures.

They make matte varnishes that are brush-on, too, but I find the fogginess left by a matte finish doesn't flatter most paintings, so I opt for the shiny gloss instead. (Gloss also is easier to dust/clean.)

Hope this helps!

[troxlerfx]

hello!! i am troxler (trox if you're nasty) and you might know me from my xwitter @ broadcastrelay or my old experimental art blog @hand-in-hand-again .

this blog is sfw. i have a more reblog-heavy nsfw sideblog, @heartshapedsignal , where i can place aesthetics, rb art that i like, Cronenbergpost & generally toss up more intense horror things & keep this one somewhat more tidy + personal-art-oriented. follow my alt if you please; although it's unlikely i'll ever post anything too explicit, there is nsfw/🔞 potential, so again, heartshapedsignal is 🔞 just to be safe!!

i have a throne account here if you'd like to support my work by helping with supplies & thereby earn my eternal gratitude:

commissions are currently closed & i will update here & on xwitter if that changes!!

i do have discord if you'd like to chat, you can DM me for my username. i'm vision impaired & it's a little easier for me than tumblr DMs (scalable font. properly mapped keyboard that allows me to hit the right keys occasionally. you know 👁️)

i am sometimes slow to respond to messages, but i don't expect you to be available all the time either--i answer things when i have a moment, & i assume others do too ✌️ i have the temperament of a displaced 11th century anchorite, am simply not adapted to the tone & pace of centralized social media.

i also unfortunately cannot voice call or stream/screen share because i am a millennial (just kidding, it's because my phone is almost 9 years old & it overheats when i check my e-mail)

learn a bit more about me under the cut ✂️

i was dropped into this simulation in the early 80s, i'm a disabled artist (vision impaired - [ask me about my atrophied optic nerves] - & have some other physical Issues so i use a cane) & my wife and i host two black cats, roughly 35% of a mannequin, and a whole lot of dolls.

all my art is trad/physical media (haven't figured out a way to make digital art accessible yet. maybe someday!!) i like to sculpt in epoxy, plastilene, polymer & stone clay, i like to mold & cast in resin, make & customize various types of dolls, & build puppets; i do custom framed work, mixed media & textile stuff like sewing & embroidery; i paint in oil, acrylic, watercolor, gouache & water soluble graphite & i love ink, markers, crayons & whatever cheap & weird stuff i can get my hands on.

i have a particular affection for props, prop replicas & hypothetical in-universe items, & i like things that are handsome, durable & believable. i'm versatile & innovative, & i'm at my happiest when i'm exploring technical processes. i have quite a bit of knowledge about techniques & materials. i love a challenge!! currently all my sewing is done by hand, i have trouble controlling pedal-operated machines.

my favorite thing is horror coated in a fine layer of nostalgia & sprinkled with history. that seems highly specific, but you'd be surprised how many things fit the criteria. i tend to fixate on characters & concepts & do a lot of art about it - a habit i developed while i was re-teaching myself to draw after the changes to my eyesight. my output is largely therapeutic. sometimes people like it. maybe you will too!!

a good amount of my work is fanart & will be tagged as such/otherwise linked to the appropriate project, original work will be specified & have its own tag.

at the moment i make a lot of work related to the independent psychological horror unfiction project Welcome Home, created by ' partycoffin ' here on tumblr.

that's all for now!! 👁️‍🗨️📺

[makeshiftstory]

Welp, this Yule is gonna be chaos, but upside, you get Ancient Toys and Games till I can get back to the main comic of Changes! Kicking things off is the humble marbles! Now I'm throwing this is right now, when you prebake polymer clay, you have a time worth of an hour for many layers of sculpting in between before it becomes overcooked. The marbles will be coming back again as honestly, there are many ancient games that do involve pebbles or marbles and might as well get the most versatile one out of the way. Anywho, echoing Avalon, tune in next time for Ancient Greek Pottery Felt Dolls! Let's just hope Curly and Eileen behave themselves for that one...

[spacetimewithstuartgary]

Nanoink and printing technologies could enable electronics repairs, production in space

An Iowa State University engineer floats in the air while other researchers hang tight to a metal frame surrounding and supporting their special printer. It's not the usual photo you see in a research paper. Tests aboard microgravity flights aren't your typical materials experiments, either.

The flight path to these experiments began when a research team led by Iowa State's Shan Jiang, an associate professor of materials science and engineering, and Hantang Qin, formerly of Iowa State who's now an assistant professor of industrial and systems engineering at the University of Wisconsin-Madison, wondered if their ink and printer technologies would work in the zero gravity of space.

The ink features silver nanoparticles synthesized with biobased polymers. After heat treatment, the ink can conduct electricity and can therefore print electric circuits. The printer uses electrohydrodynamic printing, or 3D printing that jets ink under an electric field at resolutions of millionths of a meter. The electric field could eliminate the need for gravity to help deposit ink.

If the technologies work together in zero gravity, astronauts could use them to make electric circuits for spacecraft or equipment repairs. And astronauts might manufacture high-value electronic components in the special, zero-gravity environment of space.

NASA wondered if it would work, too.

Diving into microgravity

Researchers bolted the printer to the floor of a jet and prepared for a "roller coaster, basically," Jiang said.

The NASA plane would continuously climb and dive, going in cycles from about 24,000 feet over Florida to 32,000 feet, then back to 24,000. The dive phase produced about 10 seconds of pure zero gravity.

"It was exciting and new," Jiang said.

Motion sickness was a problem for some. Others enjoyed the thrill of it. Jiang felt "frozen" the first time he experienced microgravity. "I was blank."

But that didn't last. "There was so much time and investment in this project. We wanted to achieve good results."

But printing for a few seconds at a time on a microgravity flight "is a very challenging experiment," Jiang said. "It's so easy on the ground where everything is stable. But if anything gets loose during the flight, you lose your printing."

The first microgravity flight was a good example. The printer wasn't adequately secured against the plane's shakes and vibrations.

"These are very intense experiments that require a lot of teamwork and preparation," Jiang said.

So, the team went back to work, made some changes, made more test flights and produced better results.

"This proof-of-concept microgravity experiment proves the unique capability of (electrohydrodynamic) printing under zero-gravity conditions and opens a new venue for future on-demand manufacturing in space," the researchers wrote in a paper published in Applied Materials & Interfaces.

Making a new nanoink

The key innovation by Jiang's research group was developing a new laboratory method to synthesize the ink with its silver nanoparticles.

"This is a new combination of materials and so we needed a new recipe to make the ink," Jiang said.

Both programs "strive to support innovative and leading research in Iowa," said Sara Nelson, director of the programs and an Iowa State adjunct assistant professor of aerospace engineering. "We are thrilled to have supported Dr. Jiang's research. His work has helped to build Iowa's research infrastructure and is an important part of NASA's strategic mission."

The project also makes use of an abundant Iowa resource, plant biomass.

The ink includes a biobased polymer called 2-hydroxyethyl cellulose, which is typically used as a thickening agent. But it is also a cost-effective, biocompatible, versatile and stable material for the inks necessary for high-resolution ink jet printing under an electric field.

"There is a lot of biomass in Iowa," Jiang said. "So, we're always trying to use these biobased molecules. They make a wonderful polymer that does all the tricks for us."

Jiang called that "the biggest surprise of this research. We didn't know that before. Now we know what we can do with these biobased polymers."

The Iowa State University Research Foundation has filed a patent on the new nanoink and the technology is currently available for licensing.

"This success is really just the beginning," Jiang said. "As humanity ventures deeper into space, the need for on-demand manufacturing of electronics in orbit is no longer science fiction; it is a necessity."

Next up for the researchers could be the development of 3D space printing for other electronic components such as semiconductors.

After all, Jiang said, "You can't just make one component and assemble an electronic device."

TOP IMAGE: Researchers—as well as a toy Cy the Cyclone—test their nanoink and printer technologies during a NASA microgravity flight. Pictured, left to right, are: Fei Liu, Yanhua Huang, Matthew Marander, Xuepeng Jiang and Pavithra Premaratne. Credit: Shan Jiang

LOWER IMAGE: Credit: ACS Applied Materials & Interfaces (2024). DOI: 10.1021/acsami.4c07592

[viktorviolettaenterprises]

GIFT For A Friend

Thanks you For @helenofsimblr for Suggesting Me To Making Timeless Classics the Remington M870 Series Along With Custom Pistol For Her.. Nice Suggestion, My Friend.. Along With Thanks to @satterlly For Etta's Outfit From Dream Fall Game.. And Also Cameo from @florwal Best Zombie Apocalyse's Save Game "Dead End"

GET YOUR ITEMS HERE!!!!!!!

Kimber Custom TLE II Pistol (Customized)

Customized Kimber Pistol Fitted With Gemtech Suppressors, Due popular Demands On Silenced Pistol, I Decide to Make another Items. Made in America, Kimber Pistol are extremely accurate. The premium-quality and precision you have come to expect from Kimber can be found in the craftsmanship and many custom features of these very special firearms. Combine it With Well Placed premium Supressors. Make it a Perfect Weapon For Assasins And Spy Alike.

Remington M870

The Timless Classics M870 is a pump-action shotgun of US origin. It was developed by Remington in the late 1940's in order to compete with the Winchester Model 12. It was first sold to civilians and police models soon followed. The M870 is an iconic firearm and the most produced shotgun in the world with over 10 million produced. Over the years the design has been updated to suit the demands of law enforcement and military operators. Comes With Original Wood Camo Along With Chrome Finish in case you need something Fancy.

Remington M870 Magnum Express

Official Upgrade To Old Remington M870. Used By US Marine. This particular Model Have Corrosion resistant utility gun with synthetic stock and Extended Magazine tube For Better Ammo Capacity. while also retain The Elements From Old Remington M870.

Remington M870 MCS (Modular Combat Shotgun)

The Official M870 Shotgun Upgrade in terms of modularity (Apart From Aftermarkets Parts) .Modular Combat Shotgun is a kit centered around the M870 shotgun. The kit allows for mission specific configurations to be created. The Particular Model a full size model with 18 inch barrel is most similar to the tactical models of the M870 with its fixed polymer stock, pistol grip, accessory rails and conventional looks.

Remington M870 MCS "Breacher"

The smallest setup of the MCS is the Breacher model with its 10 inch barrel and no stock. The Breacher model may also be fitted under the M4 carbine to form a Masterkey setup. Not Ideal For Close Quarter Combat due Extremely Low Magazine Capacity (3+1 In Chamber) But Perfect Weapon For Assassination due Compact and Concealable Size. But Mind The Mess it could make.

Remington M870 (Folding Stock)

One Of Early Upgrade For Increasing Versatility of M870 By Adding A Pistol Grip and Folding Grip for Increasing Mobility And Accuracy.

Remington M870 (Sawed Off)

A Custom Work Featuring Remington M870 Got Their Stock Got Sawed Off for Better Maneuverability. Perfect For Zombie-Apocalypse Scenario or Some Bizarre Backups

Thank You: @exzentra-reblog @bdangkingfish @helenofsimblr

[historyofguns]

The article, authored by Mike Humphries for The Armory Life, reviews the N8 Tactical MultiFlex Holster, emphasizing its adaptability and suitability for various EDC needs. Humphries compares it to the adaptable Springfield Armory Echelon pistol, which features an interchangeable chassis system and supports multiple optics. He highlights that the MultiFlex Holster, designed by N8 Tactical, a sister company to Crossbreed Holsters, fits over 275 handgun models and can transition between IWB and OWB carry modes. The holster offers nine adjustment points to ensure a secure fit and retails at an affordable price of $49.95, making it a versatile choice for a broad range of handgun users.

[orangameelectronics]

30000mAh 18W Solar Panel Power Bank – Power Up Your Adventures!

Introducing the ultimate power solution for your on-the-go adventures - the 30000mAh 18W Solar Panel Power Bank with 4 USB Outputs and Pass-Through Charging. Crafted from durable ABS+Silicone material, this powerhouse features a 30000mAh Li-polymer cell type, ensuring you have ample power wherever your journey takes you. Equipped with LED lightning support and a convenient LED Display, this power bank is a must-have for tech enthusiasts and outdoor enthusiasts alike. #PowerBank #FastCharging

With input interfaces for Micro USB and Type-C, and output interfaces including DC, Type-C, Four USBs, and Wireless charging, this power bank offers versatile connectivity options for a wide range of devices. Whether you're using an iPhone, Galaxy S8, Huawei, or iPad mini, this power bank has got you covered. Plus, with its solar panel charge function, you can stay charged even in the great outdoors. #TechGadgets #StayConnectedEverywhere

The 30000mAh capacity makes this power bank a portable powerhouse, perfect for those who need reliable power on the move. Its new private model design emphasizes solar charging for environmental protection and energy-saving benefits, making it the ideal choice for outdoor adventures and travel enthusiasts. The dual bright LED flashlight adds an extra layer of functionality, ensuring you're prepared for any situation, day or night. #BatterySaver #GadgetLovers

Experience the convenience and efficiency of the 30000mAh 18W Solar Panel Power Bank, a high-capacity and portable charging solution that keeps you connected and juiced up wherever you go. Say goodbye to low battery anxiety and hello to uninterrupted power with this innovative and environmentally friendly power bank. Stay connected, stay charged, and stay ready for anything with this essential tech accessory. #ChargeOnTheGo #TechEssentials

[foundationsolution1]

The Power Of Polymer: Unfolding The Magic Of Polyurethane Foam Production

INTRODUCTION:

In the dynamic and evolving world of polymer science, one name specifically stands out due to its versatility and vast applicability – Polyurethane. A byproduct of the mind-boggling chemical reaction between two liquid materials, polyurethane is a unique type of polymer that effectively transforms into a foam. This article endeavors to offer you a detailed look into the exciting world of polyurethane foam production

THE DYNAMIC DUO:

Polyurethane foam is produced when two chemically distinct liquid materials – commonly referred to as the “”A”” component and “”B”” component – are combined under specifically controlled conditions.

The “”A”” component, or Polymeric MDI (methylene diphenyl diisocyanate), is a reactive isocyanate that boasts a relatively low viscosity level, enabling it to mix flawlessly with the “”B”” component. It has a brownish coloration and often exudes a slightly sweet smell.

Meanwhile, the “”B”” component, also known as Polyol, is a polyether compound that is generally less reactive than its “”A”” counterpart. It is characterized by a pale, almost transparent color and presents a tasteless, odorless profile.

POLYURETHANE PRODUCTION:

Let’s delve into the fascinating process through which these two distinct liquids join forces to produce the mighty polyurethane foam.

When combined, the polyether polyol and the polymeric MDI kickstart an exothermic chemical reaction that generates a considerable amount of heat. During this process, tiny gas bubbles are formed, which get trapped within the polymer structure, eventually giving rise to what we commonly recognize as foam. This intriguing process is commonly referred to as “”foaming.””

The reaction’s speed and the cell structure’s quality are heavily dependent on the specific quantities and properties of the A and B components. Manipulating these parameters allows for the production of a wide variety of foam types from rigid and semi-rigid to flexible. Additionally, various catalysts and surfactants can be added to control the cell structure’s size and distribution, as well as the reaction speed.

The transformation process from a liquid state to a solid, foamed state is surprisingly quick – often taking less than a few minutes. However, it’s noteworthy to mention that the foam continues to cure and reach its complete strength over the course of a few hours or even days.

APPLICATIONS OF POLYURETHANE FOAM:

The versatility of polyurethane foam is extraordinary. From furniture and bedding to automotive applications, thermal insulation in construction, and even in the footwear industry, polyurethane foam has spread its roots far and wide.

UNDERSTANDING THE SCIENCE:

The combination of a polyether polyol and a polymeric MDI generates not just heat but also a new product – urethane. Urethane forms strong, resilient bonds that contribute to the flexible, durable nature of the resultant foam. This is what makes polyurethane an excellent choice for various applications that require durability, flexibility, and excellent thermal and acoustic insulation properties.

In conclusion, the creation of polyurethane foam from two liquid materials is a mesmerizing example of polymer formation, which encapsulates the dexterity and capability of synthetic chemistry. By manipulating the compounds’ properties and the conditions under which the reaction occurs, scientists and engineers have managed to expand the realms of possibility, thereby furthering the boundaries of modern industrial applications. Thus, polyurethane foam not only offers an excellent material for various purposes but also profoundly echoes the power and potential of polymer science.

Tagged Foundation Solutions, Polymer, Power Of Polymer

[healthandfitness789]

Modern Texture Paint Designs: Transforming Spaces with Style

In the world of interior design, texture paint designs have become a game-changer. No longer confined to flat, monochrome walls, modern texture paint designs offer a creative and versatile way to add depth, character, and visual interest to any room. Whether you’re looking to create a subtle backdrop or a bold statement wall, the right texture paint design can elevate your home’s aesthetic to new heights. In this blog, we’ll explore some of the most popular modern texture paint designs and how they can be used to transform your space.

What is Texture Paint?

Texture paint is a specialty paint that is designed to add dimension and tactile interest to walls. Unlike traditional paint, which dries to a smooth finish, texture paint contains aggregates such as sand, silica, or polymers that create a raised or rough surface when applied. This not only adds visual appeal but can also help to conceal minor wall imperfections.

Popular Texture Paint Designs

1. Rustic Plaster

Rustic plaster texture paint designs mimic the look of aged plaster walls, often seen in Mediterranean or Tuscan-style homes. This design adds a warm, inviting feel to any room and works particularly well in living rooms and dining areas. To achieve this look, a base coat is applied, followed by a thicker, textured layer that is manipulated with tools like trowels or sponges to create an uneven, rustic finish.

2. Concrete Finish

For those who prefer a more industrial or contemporary vibe, concrete finish texture paint designs are an excellent choice. This design replicates the cool, minimalist aesthetic of concrete surfaces, making it ideal for modern lofts or urban-inspired interiors. The texture is created using a combination of gray paints and techniques that produce a smooth yet subtly varied surface, adding depth without overwhelming the space.

3. Marble Effect

Marble effect texture paint designs bring the luxurious look of marble to your walls without the hefty price tag. This technique involves layering different shades of paint to replicate the veins and swirls found in natural marble. It’s a sophisticated option that works beautifully in bathrooms, entryways, and even as an accent wall in bedrooms. The result is a stunning, high-end finish that exudes elegance and refinement.

4. Stucco

Stucco texture paint designs are inspired by traditional European architecture. This finish is characterized by its rough, sand-like texture, which can range from fine to coarse. Stucco is highly versatile and can be used both indoors and outdoors, making it perfect for creating a cohesive look throughout your home. It’s particularly popular in Spanish and Southwestern-style homes, adding a timeless, earthy charm.

5. Linen Texture

For a softer, more understated look, linen texture paint designs are a great option. This design mimics the woven appearance of linen fabric, adding a subtle, tactile element to walls. It’s created using a combination of paint and a special brush or roller to achieve the desired texture. Linen texture is ideal for bedrooms, home offices, and other spaces where a calm, serene ambiance is desired.

6. Geometric Patterns

Modern texture paint designs often incorporate geometric patterns to create a bold, contemporary look. Using tape and various texture tools, intricate designs such as chevrons, hexagons, or abstract shapes can be crafted on your walls. This style is perfect for accent walls or to highlight specific architectural features in a room. The combination of texture and pattern adds a dynamic, eye-catching element that can transform any space.

Tips for Using Texture Paint Designs

Start Small: If you’re new to texture paint, begin with a small area or accent wall to get a feel for the technique and its impact on your space.

Use Quality Tools: The right tools, such as trowels, sponges, and specialty rollers, are essential for achieving the desired texture and finish.

Experiment with Colors: Don’t be afraid to mix and match colors to create unique effects. Layering different shades can add depth and dimension to your walls.

Consider the Room’s Function: Choose a texture that complements the room’s purpose and existing décor. For example, a soothing linen texture is ideal for bedrooms, while a bold geometric pattern might be better suited for a living room or entryway.

Hire a Professional: For more complex designs or if you’re unsure about your skills, hiring a professional painter can ensure a high-quality, polished result.

Conclusion

Modern texture paint designs offer endless possibilities for enhancing your home’s interior. From rustic plaster and concrete finishes to marble effects and geometric patterns, there’s a texture paint design to suit every style and taste. By incorporating these designs into your home, you can create visually stunning spaces that reflect your personality and aesthetic preferences. So, unleash your creativity and transform your walls with the magic of texture paint designs!