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Archive for the ‘biotech/medical’ category: Page 2549

Aug 12, 2016

Living Forever Has Never Been More Popular

Posted by in categories: biotech/medical, geopolitics, life extension, transhumanism

My dispatch for Vice from the recent successful RAAD Festival—a giant gathering of longevity enthusiasts:


In less than a month, I’ll mark the two-year anniversary to my presidential campaign for the Transhumanist Party. My run for the White House was never about winning, but spreading the idea that Americans can achieve indefinite lifespans through science and technology—if only the government were to help out and put significant resources into the anti-aging field.

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Aug 11, 2016

Long-term brain-machine interface use could lead to recovery in paraplegic patients

Posted by in categories: biotech/medical, cyborgs, engineering, neuroscience, robotics/AI

I know so many people who will benefit from this.


During the 2014 FIFA World Cup opening ceremony, a young Brazilian man, paralyzed from the chest down, delivered the opening kickoff. He used a brain-machine interface, allowing him to control the movements of a lower-limb robotic exoskeleton.

This unprecedented scientific demonstration was the work of the Walk Again Project (WAP), a nonprofit, international research consortium that includes Alan Rudolph, vice president for research at Colorado State University, who is also an adjunct faculty member at Duke University’s Center for Neuroengineering.

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Aug 11, 2016

DNA dominos on a chip: Carriers of genetic information packed together on a biochip like in nature

Posted by in categories: biotech/medical, genetics, nanotechnology, physics

Abstract: Normally, individual molecules of genetic material repel each other. However, when space is limited DNA molecules must be packed together more tightly. This case arises in sperm, cell nuclei and the protein shells of viruses. An international team of physicists has now succeeded in artificially recreating this so-called DNA condensation on a biochip.

Recreating important biological processes in cells to better understand them currently is a major topic of research. Now, physicists at TU Munich and the Weizmann Institute in Rehovot have for the first time managed to carry out controlled, so-called DNA condensation on a biochip. This process comes into play whenever DNA molecules are closely packed into tight spaces, for example in circumstances that limit the available volume.

This situation arises in cell nuclei and in the protein shells of viruses, as well as in the heads of sperm cells. The phenomenon is also interesting from a physical perspective because it represents a phase transition, of sorts. DNA double helices, which normally repel each other because of their negative charges, are then packed together tightly. “In this condensed state they take on a nearly crystalline structure,” says co-author and TU professor Friedrich Simmel.

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Aug 11, 2016

UW research fuels mini solar cells

Posted by in categories: biotech/medical, solar power, sustainability

Scientist looks to tap the sun to power adjustable contact lenses, other medical devices.

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Aug 11, 2016

National Science Foundation

Posted by in categories: biotech/medical, education, life extension, science, singularity

Interesting read; like the plug by Rajeev Alur about how the insights from the ExCAPE project has helped advance making QC programmable. Like Alur, I too see many synergies across multiple areas of science & tech. For example, the work on singularity is being advance by the work performed around anti-aging, cancer research, etc. and vice versa. Truly one of my biggest enjoyments of research and innovation is taking a accept or vision, and guessing where else can the concept be leveraged or even advancing other industries.


NSF’s mission is to advance the progress of science, a mission accomplished by funding proposals for research and education made by scientists, engineers, and educators from across the country.

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Aug 11, 2016

Remote control of the brain is coming: how will we use it?

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

Controlling the minds of others from a distance has long been a favourite science fiction theme – but recent advances in genetics and neuroscience suggest that we might soon have that power for real. Just over a decade ago, the bioengineer Karl Deisseroth and his colleagues at Stanford University published their paper on the optical control of the brain – now known as optogenetics – in which the firing pattern of neurons is controlled by light. To create the system, they retrofitted neurons in mouse brains with genes for a biomolecule called channelrhodopsin, found in algae. Channelrhodopsin uses energy from light to open pathways so that charged ions can flow into cells. The charged ions can alter the electrical activity of neurons, influencing the animal’s behaviour along the way.

Soon researchers were using implants to guide light to channelrhodopsin in specific neurons in the brains of those mice, eliciting behaviour on demand. At the University of California the team of Anatol Kreitzer worked with Deisseroth to disrupt movement, mimicking Parkinson’s disease and even restoring normal movement in a Parkinsonian mouse. Deisseroth and his colleague Luis de Lecea later demonstrated that it was possible to wake up mice by activating a group of neurons in the brain that control arousal and sleep.

But optogenetics has been challenging. Since light does not easily penetrate dense fatty brain tissue, researchers must implant a fibre-optic cable to bring light into the brain. This limitation led to the development of another, less intrusive technique known as DREADD (designer receptors exclusively activated by designer drugs). In this case, a receptor normally activated by the neurotransmitter acetylcholine is modified to respond to a designer drug not normally found in the body. When the designer drug is delivered, neurons can be manipulated and behaviour changed over a number of hours. The major drawback here: the slow course of drug administration compared with the rapid changes in brain activity that occur during most tasks.

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Aug 11, 2016

Paralysed patients move limbs after virtual reality training

Posted by in categories: biotech/medical, cyborgs, neuroscience, robotics/AI, virtual reality

Eight completely paralysed people have regained function in their limbs following virtual reality training, in an accidental result that has astonished even the scientists involved.

Using a brain-machine interface, scientists showed that people with long-term severe paralysis could retrain the few remaining connections in their damaged spines, letting their brains talk to their extremities once more. This enabled them to feel sensation, move their limbs and improved their bladder and bowel control.

The results came about as a wholly unexpected side effect of training to help people use robotic exoskeletons, which let them walk upright.

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Aug 11, 2016

The gene therapy revolution is coming. Will the US get left behind?

Posted by in categories: biotech/medical, economics, law

US lawmakers have saddled American biotech with another legal restriction, and scientists are only partially engaging with this looming medical and economic problem.

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Aug 11, 2016

Scientists Argue the US Ban on Human Gene Editing Will Leave It Behind

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

As the biotech revolution accelerates globally, the US could be getting left behind on key technological advances: namely, human genetic modification.

A Congressional ban on human germline modification has “drawn new lines in the sand” on gene editing legislation, argues a paper published today in Science by Harvard law and bioethics professor I. Glenn Cohen and leading biologist Eli Adashi of Brown University. They say that without a course correction, “the United States is ceding its leadership in this arena to other nations.”

Germline gene modification is the act of making heritable changes to early stage human embryos or sex cells that can be passed down to the next generation, and it will be banned in the US. This is different from somatic gene editing, which is editing cells of humans that have already been born.

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Aug 11, 2016

Why China is likely to spearhead the future of genetic enhancement

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

G. Owen Schaefer, National University of Singapore

Would you want to alter your future children’s genes to make them smarter, stronger or better-looking? As the state of the science brings prospects like these closer to reality, an international debate has been raging over the ethics of enhancing human capacities with biotechnologies such as so-called smart pills, brain implants and gene editing. This discussion has only intensified in the past year with the advent of the CRISPR-cas9 gene editing tool, which raises the specter of tinkering with our DNA to improve traits like intelligence, athleticism and even moral reasoning.

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