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Category: bioengineering – Page 83

Solar-powered cells: Light-activated proton pumps generate cellular energy, extend life

New research in the journal Nature Aging takes a page from the field of renewable energy and shows that genetically engineered mitochondria can convert light energy into chemical energy that cells can use, ultimately extending the life of the roundworm C. elegans. While the prospect of sunlight-charged cells in humans is more science fiction than science, the findings shed light on important mechanisms in the aging process.

“We know that is a consequence of aging,” said Andrew Wojtovich, Ph.D., associate professor of Anesthesiology and Perioperative Medicine and Pharmacology & Physiology at the University of Rochester Medical Center and senior author of the study.

“This study found that simply boosting metabolism using light-powered gave laboratory worms longer, healthier lives. These findings and new research tools will enable us to further study mitochondria and identify new ways to treat age-related diseases and age healthier.”

Genomics pioneer George Church, former Kindred Bio execs launch CRISPR-designed pets company AdoraPet Biosciences

A Peninsula biotech startup cofounded by pioneering geneticist George Church — who already is working to engineer the woolly mammoth out of extinction — is trying to raise as much as $5 million in a crowdfunding effort to design healthier, longer-living pets.

AdoraPet Biosciences Inc. of San Mateo plans to apply the genome-engineering CRISPR technology at the egg stage of dogs and cats or insert CRISPR-modified DNA into eggs, to make nonallergenic pets that don’t shed and ultimately live longer, are free of genetic diseases caused by inbreeding and are resistant to cancer and other serious diseases.

Decoding nature’s masterful engineering using math

Logic gates in biology can be set up to lead to timing important biological events. How is this done?

Edit: at 4:00, not all pathways make use of this motif. This is just one way timing can happen in biology.

Created by Prompt Suathim (2nd year undergrad, Integrated Science, UBC)

Uri Alon’s Book:

Music:
City Life – Artificial. Music (No Copyright Music)
Link: https://www.youtube.com/watch?v=caT3j… ure Water by Meydän Link: https://youtu.be/BU85yzb0nMU Forever Sunrise — by Jonny Easton Link: https://youtu.be/9Xndx7nhGAs Softwares used: Manim CE Keynote Blender Molecular Nodes by @BradyJohnston Chapters: 0:00 Intro 1:00 A few issues to address 2:51 Nodes in Biology 3:23 Feed Forward Loop 4:11 Logic gates in biology 5:27 The math behind delays 9:15 How is flagella production controlled 11:06 Outtro.
Pure Water by Meydän.
Link: https://youtu.be/BU85yzb0nMU
Forever Sunrise — by Jonny Easton.
Link: https://youtu.be/9Xndx7nhGAs.

Softwares used:

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Transhumanism & Humanity’s Future

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In the future, humanity may embrace genetic engineering and cybernetic augmentation of mind and body, but what does this Transhuman future look like? And should we embrace or resist these paths?

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Episode’s Narration-only version: https://soundcloud.com/isaac-arthur-148927746/transhumanism-…ation-only.

Credits:
Transhumanism & Humanity’s Future.
Science & Futurism with Isaac Arthur.
Episode 375, December 29, 2022
Written, Produced & Narrated by Isaac Arthur.

Editors:
Briana Brownell.
Donagh Broderick.
Keith Blockus.
Lukas Konecny.

Graphics:

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USDA approves GMO purple tomato with brain-boosting and cancer-fighting properties

Although genetically modified foods still get a bit of a bad rap, there are actually many good reasons why modifying an organism’s genetics may be worthwhile. For example, many breeds of genetically modified foods have made them more resistant to disease.

It’s also possible to modify foods to make them more nutritious. Take, for example, golden rice. This grain was engineered to have higher levels of vitamin A in order to tackle deficiencies of this nutrient in impoverished countries.

A purple tomato, created using genetic modification, may be available to buy in the U.S. as soon as 2023.

Network neuroscience theory best predictor of intelligence, study finds

Scientists have labored for decades to understand how brain structure and functional connectivity drive intelligence. A new analysis offers the clearest picture yet of how various brain regions and neural networks contribute to a person’s problem-solving ability in a variety of contexts, a trait known as general intelligence, researchers report.

They detail their findings in the journal Human Brain Mapping.

The study used “connectome-based predictive modeling” to compare five theories about how the gives rise to , said Aron Barbey, a professor of psychology, bioengineering and neuroscience at the University of Illinois Urbana-Champaign who led the new work with first author Evan Anderson, now a researcher for Ball Aerospace and Technologies Corp. working at the Air Force Research Laboratory.

New biomaterial can regenerate bones and prevent infections

Researchers in Spain have developed a new porous material capable of regenerating bones and preventing infections at the same time.

The scientists are from the Bioengineering and Biomaterials Laboratory of Universidad Católica de Valencia (UCV).

Tailor-made for each case using 3D printing, the biotech creations contain a bioactive alginate coating. This coating induces bone regeneration and destroys the bacteria that sometimes prevent bone formation from being completed.

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