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Category: biotech/medical – Page 2,571

Permanent liquid magnets have now been created in the lab

The rules about what makes a good magnet may not be as rigid as scientists thought. Using a mixture containing magnetic nanoparticles, researchers have now created liquid droplets that behave like tiny bar magnets.

Magnets that generate persistent magnetic fields typically are composed of solids like iron, where the magnetic poles of densely packed atoms are all locked in the same direction (SN: 2/17/18, p. 18). While some liquids containing magnetic particles can become magnetized when placed in a magnetic field, the magnetic orientations of those free-floating particles tend to get jumbled when the field goes away — causing the liquid to lose its magnetism.

Now, adding certain polymers to their recipe has allowed researchers to concoct permanently magnetized liquid droplets. These tiny, moldable magnets, described in the July 19 Science, could be used to build soft robots or capsules that can be magnetically steered through the body to deliver drugs to specific cells.

‘Trojan horse’ anticancer drug disguises itself as fat

A stealthy new drug-delivery system disguises chemotherapeutics as fat in order to outsmart, penetrate and destroy tumors.

Thinking the drugs are tasty fats, tumors invite the drug inside. Once there, the targeted drug activates, immediately suppressing tumor growth. The drug also is lower in toxicity than current chemotherapy drugs, leading to fewer side effects.

“It’s like a Trojan horse,” Northwestern University’s Nathan Gianneschi, who led the research. “It looks like a nice little fatty acid, so the tumor’s receptors see it and invite it in. Then the drug starts getting metabolized and kills the tumor cells.”

‘Almost perfect’ hearing for deaf with new tech

Dr. Wim Melis from the University of Greenwich is working on deconstructing and reconstructing audio signals with extremely high accuracy.

Audio is captured and, from there, converted into a spiking signal—the type the uses. This is then fed into the brain and reconstructed as a 90–100 percent replica of the original sound.

Current technologies, known as , only achieve a fraction of this. They do the work of damaged parts of the inner ear (cochlea) to provide sound signals to the brain, whereas hearing aids make sounds louder.

Scientists Print Magnetic Liquid Droplets

Scientists at Berkeley Lab have made a new material that is both liquid and magnetic, opening the door to a new area of science in magnetic soft matter. Their findings could lead to a revolutionary class of printable liquid devices for a variety of applications from artificial cells that deliver targeted cancer therapies to flexible liquid robots that can change their shape to adapt to their surroundings. (Video credit: Marilyn Chung/Berkeley Lab; footage of droplets courtesy of Xubo Liu and Tom Russell/Berkeley Lab)

Man with brain implant on Musk’s Neuralink: “I would play video games”

The three-hour event was part marketing spectacle and part dry technical explainer. Musk and his team members described the brain-machine interface design they’re betting on, which will employ dozens of thin wires to collect signals in the brain, and which they want to try out on paralyzed people soon, so they can type with their minds. Their eventual aim is to connect those wires to a thought transmitter which tucks behind your ear like a hearing aid.

Well, it’s pretty cool. It seemed like maybe it will work the way they want down the road, but it probably doesn’t work that way now. A couple of years ago, when I heard he was working with a neural interface, I said I would be there in a heartbeat. I was joking, but it’s interesting to think about what I am going to do when I get explanted. I am coming up on my five years. Then the FDA says my implants may have to come out. Neuralink talked about longevity of the implant and also a large number of electrodes. I always say I wish they had put more electrodes into me.

Basically, the more electrodes you have, the more neurons you record from, so I would imagine higher-degree tasks would be easier. I am limited to thinking about my right arm and hand. I thought it would be good to have more control. I always want to play more video games.

I was going to school at Penn State, Fayette, for nanofabrication, so I didn’t have a job, I was in school.

The World’s Smallest MRI Machine Just Captured The Magnetic Field of a Single Atom

Using a new technique, scientists have performed the world’s smallest magnetic resonance imaging to capture the magnetic fields of single atoms. It’s an incredible breakthrough that could improve quantum research, as well as our understanding of the Universe on subatomic scales.

“I am very excited about these results,” said physicist Andreas Heinrich of the Institute for Basic Sciences in Seoul. “It is certainly a milestone in our field and has very promising implications for future research.”

You’re probably most familiar with magnetic resonance imaging, or MRI, as a method used to image internal body structures in medicine. An MRI machine uses highly powerful magnets to induce a strong magnetic field around the body, forcing the spin of the protons in the nuclei of your body’s hydrogen atoms to align with the magnetic field, all without producing side-effects.

Alzheimer’s could be slowed by Fewer Than 9,000 Steps a Day, Shows Study Linking Exercise With the Disease

Scientists believe even moderate amounts of exercise can slow cognitive decline in people at risk of developing Alzheimer’s disease.

A study published in the journal JAMA Neurology found a total of around 8,900 steps per day appeared to slow rates of cognitive decline and brain volume loss in people who were at high risk. The individuals were considered at risk because of the levels of amyloid beta—a protein thought to play a role in Alzheimer’s— in their brain.

Dr. Jasmeer Chhatwal, Assistant Professor at Harvard Medical School and co-author of the research, told Newsweek: “These results suggest that very achievable levels of physical activity may be protective in those at high risk of cognitive decline and that this effect can be augmented further by lowering vascular risk.” Vascular risk factors include high blood pressure, obesity, smoking, diabetes, he explained.

We Own Our DNA

You OWN your DNA data Let’s keep it that way.

EDNA Members monetize their genetic data by selling access to their data direct to researchers. With an average selling price of $350.00 and an average expectancy of up to 200 deals, this can translate to as much as $70,000.00 per person. Intended use and licensing of this data is controlled by smart contract and may include posted bonds provided by researchers to insure confidentiality and security of the data. Don’t give away this highly-valuable property. Claim it for yourself. Opt-In only when YOU decide. It’s your property and you should be in control.

Brent Nally interviews Dr. Aubrey de Grey @ SENS on July 17, 2019

My mission is to drastically improve your life by helping you break bad habits, build and keep new healthy habits to make you the best version of yourself. I read the books and do all the research and share my findings with you!

This video is an interview of Dr. Aubrey de Grey @ SENS on July 17, 2019. My wife, Lauren Nally, was our camerawoman.

- Please consider a donation so I can continue to keep my YouTube ads off: My Bitcoin Cash (BCH) address: qr9gcfv92pzwfwa5hj9sqk3ptcnr5jss2g78n7w6f2 or https://www.paypal.me/BrentNally
- Please consider a donation to SENS: https://www.sens.org/

SHOW NOTES:

- Aubrey’s wikipedia: https://en.wikipedia.org/wiki/Aubrey_de_Grey
- SENS wikipedia: https://en.wikipedia.org/wiki/SENS_Research_Foundation
- like & follow SENS on Facebook: https://www.facebook.com/sensf/?ref=br_rs
- subscribe to Undoing Aging’s YouTube channel: https://www.youtube.com/channel/UCAwxbQhlE6qcTXmKcxkaCGA/videos
- follow Aubrey on Twitter: https://twitter.com/aubreydegrey
- follow SENS on Twitter: https://twitter.com/senstweet
- follow Aubrey on LinkedIn: https://www.linkedin.com/in/aubrey-de-grey-24260b/
- follow SENS on Instagram: https://www.instagram.com/sensresearchfoundation/
0:55 Type “Aubrey de Grey” into YouTube for lots of his lectures & interviews.
1:50 Update on the state of the anti-aging industry & explosion of private sector interest.
5:05 Intro for Aubrey
5:35 My May 30, 2019 interview with Sierra Sciences CEO Dr. Bill Andrews: https://www.youtube.com/watch?v=Tx9yG6iTROQ
6:25 diversity of messaging in anti-aging is increasing.
7:10 My July 10, 2019 interview with BioViva CEO Liz Parrish: https://www.youtube.com/watch?v=oBFTwGPaPr4
8:28 Aubrey shares his updated thoughts on the role of telomerase in cancer in humans.
12:00 Liz had here telomeres tested by SpectraCell Laboratories: https://www.spectracell.com/clinicians/products/telomere-testing/ & LifeLength: https://lifelength.com/
14:10 there has recently been more testing on humans in the field of the biology of aging.
15:44 It’s obvious to Aubrey & I that aging is a big problem but most people still don’t understand this.
18:40 profound difference between how scientists & technologists think.
22:11 Watch the documentary “The Immortalists” about Dr. Aubrey de Grey & Dr. Bill Andrews: https://www.theimmortalists.com/watch/?
22:58 updates on anti-aging investments & research projects.
30:01 stem cell therapy is intended to repair cell loss.
30:50: we have a massive funding problem to reverse human aging.
32:53 we must educate the public that aging is causing 100,000 deaths per day and funding biological age reversal research can change this.
36:52 Is human aging a disease?
44:10 FDA progress to treat age-related diseases/conditions.
47:38 World Health Organization ICD code progress to treat age-related diseases/conditions.
50:02 Trans-NIH Geroscience Interest Group (GSIG)
54:40 “triangular log jam” of funding with governments, scientists and public opinion.
56:30 Aubrey shares why SENS still exists.
1:00:38 Ethereum cryptocurrency founder Vitalik Buterin & other SENS donors.
1:01:55 Undoing Aging is a conference held every spring in Berlin, Germany.
1:04:53 July 2019 is Aubrey’s 2-year anniversary at AgeX as the VP of New Technology Discovery.
1:08:44 Jeff Bezos donated $100 million to Unity Biotechnology, Inc. (not Human Longevity Inc.) in 2018.
1:11:02 (Larry) Ellison Medical Foundation failure in reversing human aging.
1:14:15 Google co-founders creating Calico rather than investing in or donating to SENS
1:21: Aubrey shares details about his lifestyle as well as his recommendations for a healthy lifestyle.
1:24:25 Aubrey looks up to the longevity “foot soldiers“
1:28:42 do what you love as much as you can to avoid excess mental, physical and emotional stress.
1:30:40 Aubrey is following all longevity therapies to determine their safety & effectiveness.
1:32:20 my stem cells story & Aubrey’s feedback.
1:34:58 EmCell in Kyiv, Ukraine is the only company doing fetal stem cells therapy.
1:39:20 exosomes
1:41:00 I’ve had no reply from Ambrosia founder Jesse Karmazin since October 2018.
1:42:51 My March 26, 2019 interview with Dr. Ed Park at Recharge Biomedical: https://www.youtube.com/watch?v=xHgfYKsH0uw&list=UUCwpkla04t…qA&index=6
1:44:31 NAD+
1:47:39 gene therapy
1:53:37 please network on the internet & in person with other longevity enthusiasts to help grow this movement faster.
1:58:48 mitochondria
2:00:48 long lived animals
2:01:49 consider a donation to SENS

- Forever Labs 1 year free cryogenic storage discount code ($250 value): BN801

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