Archive for the ‘bioengineering’ category

Aug 3, 2021

RNA CRISPR gene editing boosts gene knockdown in human cells

Posted by in categories: bioengineering, biological, biotech/medical, chemistry, genetics

Modified RNA CRISPR boosts gene knockdown in human cells.

In the latest of ongoing efforts to expand technologies for modifying genes and their expression, researchers in the lab of Neville Sanjana, PhD, at the New York Genome Center (NYGC) and New York University (NYU) have developed chemically modified guide RNAs for a CRISPR system that targets RNA instead of DNA. These chemically-modified guide RNAs significantly enhance the ability to target – trace, edit, and/or knockdown – RNA in human cells.

Longevity. Technology: In the study published in Cell Chemical Biology, the research team explores a range of different RNA modifications and details how the modified guides increase efficiencies of CRISPR activity from 2-to 5-fold over unmodified guides. They also show that the optimised chemical modifications extend CRISPR targeting activity from 48 hours to four days.

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Aug 2, 2021

Doctors altered a person’s genes with CRISPR for the first time in the U.S. Here’s what could be next

Posted by in categories: bioengineering, biotech/medical, genetics

Last week, a young woman with sickle cell anemia became the first person in the United States to have her cells altered with CRISPR gene editing technology. Here’s what that means for the future treatment of genetic diseases.

Jul 31, 2021

DeepMind AI predicts 350,000 protein structures

Posted by in categories: bioengineering, biotech/medical, information science, robotics/AI

DeepMind CEO and co-founder. “We believe this work represents the most significant contribution AI has made to advancing the state of scientific knowledge to date. And I think it’s a great illustration and example of the kind of benefits AI can bring to society. We’re just so excited to see what the community is going to do with this.” https://www.futuretimeline.net/images/socialmedia/

AlphaFold is an artificial intelligence (AI) program that uses deep learning to predict the 3D structure of proteins. Developed by DeepMind, a London-based subsidiary of Google, it made headlines in November 2020 when competing in the Critical Assessment of Structure Prediction (CASP). This worldwide challenge is held every two years by the scientific community and is the most well-known protein modelling benchmark. Participants must “blindly” predict the 3D structures of different proteins, and their computational methods are subsequently compared with real-world laboratory results.

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Jul 31, 2021

Stem Cell Scientists Explore the Latent Regenerative Potential of the Inner Ear

Posted by in categories: bioengineering, biotech/medical, genetics, life extension

“Our study raises the possibility of using therapeutic drugs, gene editing, or other strategies to make epigenetic modifications that tap into the latent regenerative capacity of inner ear cells as a way to restore hearing,” said Segil. “Similar epigenetic modifications may also prove useful in other non-regenerating tissues, such as the retina, kidney, lung, and heart.”

Scientists from the USC Stem Cell laboratory of Neil Segil have identified a natural barrier to the regeneration of the inner ear’s sensory cells, which are lost in hearing and balance disorders. Overcoming this barrier may be a first step in returning inner ear cells to a newborn-like state that’s primed for regeneration, as described in a new study published in Developmental Cell.

“Permanent hearing loss affects more than 60 percent of the population that reaches retirement age,” said Segil, who is a Professor in the Department of Stem Cell Biology and Regenerative Medicine, and the USC Tina and Rick Caruso Department of Otolaryngology – Head and Neck Surgery. “Our study suggests new gene engineering approaches that could be used to channel some of the same regenerative capability present in embryonic inner ear cells.”

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Jul 28, 2021

How An Altered Strand Of DNA Can Cause Malaria-Spreading Mosquitoes To Self-Destruct

Posted by in categories: bioengineering, biotech/medical, genetics, health

Despite years of efforts, malaria remains a major health problem. The mosquito-borne parasitic disease sickens more than 200 million people every year and kills more than 400000, many of whom are children.

For the first time, scientists have shown that a new kind of genetic engineering can crash populations of malaria-spreading mosquitoes.

In the landmark study, published Wednesday in the journal Nature Communications, researchers placed the genetically modified mosquitoes in a special laboratory that simulated the conditions in sub-Saharan Africa, where they spread the deadly disease.

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Jul 27, 2021

Scientists Develop ‘Food Generator’ That Turns Plastic Into Edible Protein

Posted by in categories: bioengineering, chemistry, food

Humanity has a plastic problem, but who said the problem couldn’t also be tasty? Scientists are trying to come up with creative solutions to address the ever-growing issue every day, with some even converting plastic bottles into vanillin using bacteria. Most recently, two scientists have echoed this sentiment and won the $1.18 million (1 million euro) 2021 Future Insight Prize in the process by creating a food ‘generator’ concept that turns plastics into protein.

The names behind the project, which was initially funded by a Defense Advanced Research Projects Agency (DARPA) cooperative agreement award for $7.2 million over four years, are Ting Lu, a professor of bioengineering at the University of Illinois Urbana-Champaign, and Stephen Techtmann, associate professor of biological sciences at Michigan Technological University.

Their goal was to improve a process for converting plastic trash into protein powder and lubricants using a combination of chemicals and high heat (pyrolysis). The two scientists call their project a food ‘generator.’

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Jul 26, 2021

How Gene Therapy and Algae Proteins Partially Restored a Blind Man’s Sight

Posted by in categories: bioengineering, biotech/medical, genetics, neuroscience

The result is optogenetics, a mind-controlling technique that’s become one of neuroscience’s most popular tools. Here, scientists use genetic engineering to put different types of algae proteins into the brains of mice. They can then activate a neuron with an implanted fiber optic cable by pulsing certain wavelengths of light. These enhanced brain cells react as they would naturally, generating an electrical signal that’s passed down and interpreted by the mouse’s brain.

Sound familiar?

If an algae protein can artificially allow neurons in the brain to translate light into electrical information, why can’t it do the same for damaged eyes?

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Jul 23, 2021

Volumetric Bioprinting of Complex Living‐Tissue Constructs within Seconds

Posted by in categories: bioengineering, bioprinting, biotech/medical, life extension, robotics/AI

Bioprinting in seconds.

Biofabrication technologies, including stereolithography and extrusion-based printing, are revolutionizing the creation of complex engineered tissues. The current paradigm in bioprinting relies on the additive layer-by-layer deposition and assembly of repetitive building blocks, typically cell-laden hydrogel fibers or voxels, single cells, or cellular aggregates. The scalability of these additive manufacturing technologies is limited by their printing velocity, as lengthy biofabrication processes impair cell functionality. Overcoming such limitations, the volumetric bioprinting of clinically relevant sized, anatomically shaped constructs, in a time frame ranging from seconds to tens of seconds is described. An optical-tomography-inspired printing approach, based on visible light projection, is developed to generate cell-laden tissue constructs with high viability (85%) from gelatin-based photoresponsive hydrogels. Free-form architectures, difficult to reproduce with conventional printing, are obtained, including anatomically correct trabecular bone models with embedded angiogenic sprouts and meniscal grafts. The latter undergoes maturation in vitro as the bioprinted chondroprogenitor cells synthesize neo-fibrocartilage matrix. Moreover, free-floating structures are generated, as demonstrated by printing functional hydrogel-based ball-and-cage fluidic valves. Volumetric bioprinting permits the creation of geometrically complex, centimeter-scale constructs at an unprecedented printing velocity, opening new avenues for upscaling the production of hydrogel-based constructs and for their application in tissue engineering, regenerative medicine, and soft robotics.

Jul 23, 2021

Scientists Made a Biohybrid Nose Using Cells From Mosquitoes

Posted by in categories: bioengineering, biotech/medical, cyborgs, health, transhumanism

💠 Japanese researchers have created a “nose” mosquito that can detect odors from tiny droplets of liquid droplets. The research could lead to the creation of Smell-O-Vision for machines and a means of diagnosing early cancer, they say. Japanese researchers have created a “nose” that can detect different odors at the same time. The team used two bubbles, each filled with oil, broken horizontally, to create a squinted figure-eight. They hope to use it to develop an artificial nose in the future.

Researchers have developed a “bionic nose” that can detect odor molecules. The team hopes to use the device as an inexpensive way to diagnose the early stages of illness. Eventually, the team wants to use their bionic nose for cancer and other health issues. They hope to make the device available to the public soon.

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Jul 22, 2021

#TransVision Future Summit 2021 — Promo 1 (English)

Posted by in categories: bioengineering, biotech/medical, bitcoin, cryonics, geopolitics, lifeboat, nanotechnology, Ray Kurzweil, robotics/AI, singularity, space travel, transhumanism

Check out our new promo for #transvision #future Summit 2021! Get your tickets! -> www.TransVisionMadrid.com There will be talks about #longevity #artificialintelligence #cryonics and much much more. You will also be able to network with speakers and attendees during 5 optional dinner/cocktails, and 2 tours of several UNESCO heritage sites and historical places: Ávila, Segovia, Monsaterio de El Escorial, Valle de los Caídos (Valley of the Fallen), Aranjuez & Toledo.

Humanity Plus Humanity Plus Humanity Plus Magazine MUTISHAN Interactive Vivian Francos #SEOHashtag Alcor Life Extension Foundation Cryonics Institute Cryonics Institute SENS Research Foundation SENS Research Foundation Posthuman Network Posthuman Network Cryonics4U Longevity Conferences Longevity for All U.S. Transhumanist Party Transhumanist Party Australia Transhumanist Party Virtual Rational Transhumanism Singularity University Ray Kurzweil Singularity Singularity Hub Ray Kurzweil’s Singularity Singularity Network Transhumanismo Brasil Transhumanismo Brasil TRANSHUMANISMO Christian Transhumanist Association Mormon Transhumanist Association SingularityNET Singularitarianism Foresight Institute Lifeboat Foundation Lifeboat Foundation Machine Intelligence Research Institute KrioRus The Hedonistic Imperative — Paradise Engineering.

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