#biotechnology science

[everythingaboutbiotech]

Extraordinary new paper from Google on Medicine & AI: When Google tuned a AI chatbot to answer common medical questions, doctors judged 92.6% of its answers right, compared to 92.9% of answers given by other doctors.

𝐇𝐈𝐑𝐄 𝐌𝐄 (DM Your Design Projects) . 💎Here to HELP You: ✔️Graphical Abstract Design ✔️Journal Figures Design ✔️Scientific Illustration ✔️Flyer and Poster Design ✔️Infographic Design ✔️Slides Design

[mindblowingscience]

Leiden Ph.D. candidate Jo-Anne Verschoor discovered that nearly 20% of the bacterial strains she studied could degrade plastic, though they needed some encouragement to do so. "Bacteria are just like people," says Verschoor. Her research was published in the journal Communications Biology. Some of the world's smallest organisms could play a significant role in solving the problem of plastic pollution. Increasingly, it is being discovered how certain bacteria can break down plastic into small particles, which can then be recycled. Moreover, Verschoor's research reveals that many more bacteria than previously thought can degrade certain types of plastics. The 27-year-old Leiden microbiologist was able to use a large collection of Streptomyces bacteria, which were already available at the university as scientists use them in the search for new antibiotics.

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[unbfacts]

[elbiotipo]

I hate that in the popular vision of biopunk, "biological machines" and biotech look like gross body horror nonsensical pieces of crap with no rhyme or reason

(bioforges from Orion's Arm)

When the most efficient "biomachines" we know, able to turn mere air water and sunlight into all sorts of useful products, look like this:

[miamaimania]

"Ghost Heart" - The Art of Decellularization

[galactic-mayhem]

made minos prime out of gmo e. coli

[anarcho-physicist]

After 4 years of work, I've finally published my very first peer-reviewed theory paper: Design rules for controlling active topological defects

(and it's open access! :D)

I am sooo excited to finally be able to share this! I'll probably write some more in the future about what it was like to work on this project, but for now here's what I want to say about it:

I think this work is a beautiful example of how the long, meandering paths of curiosity-driven research can bring us in completely unexpected directions, yielding new ideas and technologies that might never have been found by problem- or profit-driven research.

We started this project because we were interested in the fundamental physics of active topological defects; we wanted to understand and develop a theory to explain their effective properties, interactions, and collective behaviors when they're hosted by a material whose activity is not constant throughout space and time.

Along the way, we accidentally stumbled into a completely new technique for controlling the flow of active 2D nematic fluids, by using symmetry principles to design activity patterns that can induce self-propulsion or rotation of defect cores. This ended up being such a big deal that we made it the focus of the paper, for a few reasons:

Topological defects represent a natural way to have discrete information in a continuous medium, so if we wanted to make a soft material capable of doing logical operations like a computer, controlling active defects might be a really good way of putting that together.

There have also been a number of biological systems that have been shown to have the symmetries of active nematics, with experiments showing that topological defects might play important roles in biological processes, like morphogenesis or cell extrusion in epithelia. If we could control these defects, we'd have unprecedented control over the biological processes themselves.

Right now the technique has only been demonstrated in simulations, but there are a number of experimental groups who are working on the kinds of materials that we might be able to try this in, so hopefully I'll get to see experimental verification someday soon!

[science-sculpt]

Epigenetics: A Journey Through Inheritance Beyond Genes

For centuries, scientists have been fascinated by the mysteries of heredity and how traits are passed down from generation to generation. DNA, the molecule that stores our genetic code, was once thought to be the sole determinant of our characteristics. However, a new frontier in biology, revealing a captivating layer of complexity beyond the DNA sequence itself: Epigenetics.

What is Epigenetics?

The term "epigenetics" was first coined in the 1940s by British biologist Conrad Waddington, but it wasn't until the late 20th century that its significance truly blossomed. Epigenetics, literally meaning "above genetics," refers to the study of heritable changes in gene expression that occur without alterations to the DNA sequence itself. Imagine DNA as the musical score, but epigenetics are the conductor and musicians who determine how the music is played. Through chemical modifications and adjustments to the proteins around DNA, epigenetics dictates which genes are turned on or off, influencing how cells function and ultimately shaping our health, development, and even behavior. Think of your DNA as the hardware: it contains the basic instructions for building and running your body. But epigenetics acts like the software, fine-tuning those instructions and determining which genes get turned on or off at specific times and in specific cells. These modifications, like chemical tags or changes in the packaging of DNA, don't alter the underlying code itself, but they can have a profound impact on how it's read and interpreted.

The Key Players:

DNA methylation: This process involves adding a methyl group to DNA, essentially silencing the gene it's attached to. Imagine it like putting a dimmer switch on a light bulb.

Histone modifications: Histones are proteins that package DNA, and changes in their structure can make genes more or less accessible to the cellular machinery needed for expression. Think of it like adjusting the curtains around a window - open wide for full light, slightly closed for filtered light.

Non-coding RNAs: These are molecules that don't code for proteins but can regulate gene expression in various ways. They're like the backstage crew in a play, ensuring everything runs smoothly.

The Power of Epigenetic Regulation

Epigenetic regulation plays a crucial role in various biological processes, including:

Development: During embryonic development, different cell types emerge from the same DNA blueprint by activating or silencing specific gene sets through epigenetic modifications.

Cellular differentiation: Specialized cells like muscle or nerve cells have unique functions due to differences in their active genes, controlled by epigenetic mechanisms.

Learning and memory: Epigenetic changes in brain cells are thought to be essential for learning and forming memories.

Aging: As we age, our epigenome accumulates changes that can contribute to age-related decline and disease.

Environmental influences: Diet, exercise, stress, and exposure to toxins can leave epigenetic marks on our genes, potentially impacting our health and even the health of future generations.

Epigenetics reminds us that we are not simply products of our genes. Our environment, choices, and experiences leave their mark, shaping who we are and potentially influencing our children's health. This deeper understanding of ourselves opens doors for self-awareness, empowerment, and potentially reshaping our narratives – not just as individuals, but as a species with the potential to leave a healthier legacy for generations to come.

[o2studies]

Calling all science students and enthusiasts!!

I would absolutely love to have a science-revolving passion project and I’ve narrowed it down to a blog/blog-type-website. I love learning about science but so rarely take the time to actually research the things that interest me. With being a high school student, exams and life this is quite a big task to handle for 1 person and I’d love others to contribute to this!

This is by no means a set plan yet, I’m just sharing a rough idea, so if you could please interact with this post or dm me if you would be interested in something of this kind. Even if you see this 5 months after this was posted (and hopefully a working project or at least WIP) still reach out if you’re interested.

You don’t have to be a great writer for this either nor fascinated about each and every science. My favourite is chemistry, but it would be nice if this project could incorporate the 3 main branches of science: biology, chemistry and physics. It depends on if people would be interested in reading something like this or participating in, and their preferred subjects. You could write about astronomy as a whole, or go into chemistry and analysing electronic configuration, talking about your favourite dinosaur bones in palaeontology, a passive behaviour analysis in psychology, or explaining how exactly scabs work in biology. These would probably be short to mid-length entries and 1/2 times a month.

But this is just my idea and how far I’ve gone with it, feedback is appreciated, there will be more updates to come (not too many until afer my exams in May tho), and I appreciate any reblogs to share this idea with others!

Hopefully a couple people would like to help out in this project and please ask questions if you have any (as a dm or ask) ^^

[holyrosegarden]

My evvvilll laboratory 🥼🧪🧫🧬👩🏻‍🔬

[haley-harrison]

[everythingaboutbiotech]

Importance of Science Communication ✨

[mindblowingscience]

A research group has developed an innovative method for the biofortification of leaves and other green plant tissues, increasing their content of healthy substances such as beta-carotene, the main precursor of vitamin A in the human diet. The work demonstrates that by using biotechnological techniques and treatments with high light intensity, the levels of beta-carotene in leaves can be multiplied up to 30 times by creating new places to store it without affecting vital processes such as photosynthesis. The results are published in the Plant Journal.

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[cbirt]

Microscopy has revolutionized our understanding of the world, allowing us to peer into the intricate details of cells, tissues, and even viruses. However, obtaining precise measurements in these minute worlds is quite difficult. Just like fog can make distant objects look different from reality, so does the light treatment of samples in microscopes, which makes them compressed or elongated along the depth axis especially. For decades now, this problem, known as refractive index mismatch (RIM), has troubled researchers.

Recently, there was a breakthrough at Delft University of Technology. In their work published in Optica journal, they present an innovative approach that could be used to determine depth-dependent re-scaling factors, which are very important in correcting distortions caused by RIM. This blog post delves into the complexities of RIM, explores existing approaches to deal with it, and explains how this new method is changing the world of microscopy.

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[whereserpentswalk]

Drew this character from my campaign. Thought pride month would be a great time to post it and pride month was now. Canon trans undead revolutionary my beloved.

Shoutout to @weaponizedalibi who did a commission of this character for me at a pride event a few days ago. Some of the things he chose to add in their version really helped me visualize the character, and added to the design in the drawing above (the heart on the chest and the placement of the flag were 100% their idea for example). His version is right below this paragraph.

[quotesfrommyreading]

The last needle to be applied against smallpox, before its eradication almost half a century ago, carried a dose of vaccine smaller than a child’s pupil. Four hundred years fit inside that droplet. The devotion of D. A. Henderson’s disease-eradicating team was in it. So were the contributions of Benjamin Rubin and the Spanish boys, as well as the advocacy of Henry Cline and the discovery by Edward Jenner, and before him the evangelism of Lady Montagu, and the influence of Circassian traders from the Caucasus Mountains, who first brought the practice of inoculation to the Ottoman court. An assembly line of discovery, invention, deployment, and trust wound its way through centuries and landed at the tip of a needle. Perhaps there is our final lesson, the one most worth carrying forward. It takes one hero to make a great story, but progress is the story of us all.

  —  Why the Age of American Progress Ended