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Category: biotech/medical

(Phys.org)—In the late 1800s when scientists were still trying to figure out what exactly atoms are, one of the leading theories, proposed by Lord Kelvin, was that atoms are knots of swirling vortices in the aether. Although this idea turned out to be completely wrong, it ushered in modern knot theory, which today is used in various areas of science such as fluid dynamics, the structure of DNA, and the concept of chirality.

Now in a new paper published in Physical Review Letters, mathematical physicist Paul Sutcliffe at Durham University in the UK has theoretically shown that nanoparticles called magnetic skyrmions can be tied into various types of knots with different magnetic properties. He explains that, in a sense, these nanoknots represent a “nanoscale resurrection of Kelvin’s dream of knotted fields.”

Skyrmions are the name of a general class of particles that are made by twisting a field. When this field is a magnetic field, the skyrmions are called magnetic skyrmions. Magnetic skyrmions have attracted a lot of attention recently due to their potential applications in spintronics, where electron spins (which are related to the electron’s magnetic properties) are exploited in the design of transistors, storage media, and related devices.

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Kentucky-based software company Advanced Solutions has developed what it calls the world’s first 3D human tissue printer that operates on a six axis robot.

Called the BioAssemblyBot, the machine is the second generation of 3D printers focused on producing biomedical materials intended to revolutionizing healthcare.

The goal is to 3D print human organs, Advanced Solutions president and CEO Michael Golway told CNBC on Friday.

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https://youtube.com/watch?v=OCkywYanYGk

Everyone knows that there are dental implants that were invented to benefit our lives in many ways, they are extremely useful and a great solution to fill the gap. But, trust me, once you read this you will be amazed.

A group of experts in the dental field has made some amazing discoveries and there has been a really incredible development in the technology of dental implants that goes far beyond the classic implant or denture. They say that these discoveries will give us the chance to grow new and genuine teeth in the oral cavity.

The famous Dr. Jeremy Mao of Columbia University was the lea d investigator of this research and what he found was absolutely incredible. Dr. Mao built a scaffold for teeth, containing stem cells in the body. Using DNA, he succeeded in regenerating new teeth. This discovery of the modern technology promises a bright future when it comes to dental care.

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In April, Scientists based in Philadelphia unveiled an artificial womb undergoing testing on fetal lambs. With a prediction from one of the researchers that the technology could be ready for human testing in three to five years, artificial wombs suddenly became the most unexpected rage of 2017. But what sort of artificial wombs might realistically be a part of healthcare in the near future?

In this video series, the Galactic Public Archives takes bite-sized looks at a variety of terms, technologies, and ideas that are likely to be prominent in the future. Terms are regularly changing and being redefined with the passing of time. With constant breakthroughs and the development of new technology and other resources, we seek to define what these things are and how they will impact our future.

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LEAF Director Elena Milova recently attended the International Longevity and Cryopreservation Summit in Madrid and gave a talk about effective advocacy and how we can engage better with the public as advocates for rejuvenation biotechnology.

Her talk touches upon effective message delivery as well as the basic principles of teaching, known as the didactic principles.

If we can learn to master this techniques it will help us all become better advocates and champions of rejuvenation biotechnology. Her talk is available below and for those who prefer reading, there is a text version of the main points addressed during the presentation. The presentation slides used in the video are available here or here for pdf.

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Excellent lightning round questions below the audio. Between Dune and Hitchhikers Guide, Liz is indeed a nerd.

In this episode we talk about aging. It’s a condition that everyone experiences and indeed, one thing is certain: when it comes to aging, our condition is terminal. Our guest today is challenging that and fighting aging head on. We’re speaking with Liz Parrish, the CEO of BioViva, a biotech company dedicated to advancing gene and cell therapies to treat the diseases of aging. We dive into her work and learn about the results of the treatment that she received to slow and maybe even reverse the effects of aging.

Liz is a passionate advocate for patient access to these revolutionary treatments, and a couple years ago, Liz decided to take her own medicine – literally. In September 2015, Liz underwent genetic therapy with the aim of slowing and even reversing the effects of aging. She believes that aging should be classified as a disease to open up entirely new and untapped pathways to extend human lives and allow us to be healthier, longer.

Gene therapy to treat aging as a disease. Is this something that will catch on? Should we be tinkering with our own genes in this way? If not, why not? We’re already extending the lives of animals from earthworms to mice – why shouldn’t we work to extend our own lives through applying this technology? But if we do that, will these treatments only be available to the elite and wealthy of our society, or is this something that can benefit all of society by making it available to anyone who wants it?

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Researchers at the Scripps Research Institute Florida campus have refined the already state-of-the-art gene-editing system CRISPR. The new improvements boost the ability of CRISPR to target, cut and paste genes in human and animal cells and helps to address the concerns of off target gene mutations raised in a recent study [1].

What is CRISPR?

CRISPR is short for “Clustered Regularly Interspaced Short Palindromic Repeat,” and is a gene editing system that exploits an ancient bacterial immune defense process. Some microbes combat viral infection by sequestering a piece of a virus’ foreign genetic material within its own DNA, to serve as a template. The next time the viral sequence is encountered by the microbe, it is detected immediately and cut up for disposal with the help of two types of RNA. Molecules called guide RNAs show the location of the invader, and the CRISPR effector proteins act as the scissors that cut it apart and destroy it.

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A conspiracy theory article that I think is spreading semi-fake news (but it’s interesting to see how some people react to #transhumanism):

While the title of this article may sound like it belongs on a strange and dark science fiction movie, it doesn’t. Unfortunately, it seems that as the technological world continues to advance, the more the old adage ‘the truth is stranger than fiction’ becomes true.

Throughout the past year or so, we have heard Google’s leading futurist tell us that it will one day be possible to live forever. His belief is that it will start with nanobots in the human body which would work to defeat deadly disease, in place of our immune system. Kurzweil maintains that the human immune system is inadequate and that,

“Your immune system, for example, does a poor job on cancer,” he told Playboy.” It thinks cancer is you. It doesn’t treat cancer as an enemy. It also doesn’t work well on retroviruses. It doesn’t work well on things that tend to affect us later in life because it didn’t select for longevity.”

He also believes that the nanobots will enhance humanity and bring us to a point we could never have reached on our own. “We’re going to be funnier. We’re going to be sexier. We’re going to be better at expressing loving sentiment.”

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