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Category: nanotechnology – Page 86

In a surprising new study, researchers at the University of Minnesota Twin Cities have found that the electron beam radiation that they previously thought degraded crystals can actually repair cracks in these nanostructures.

The groundbreaking discovery provides a new pathway to create more perfect crystal nanostructures, a process that is critical to improving the efficiency and cost-effectiveness of materials that are used in virtually all electronic devices we use every day.

“For a long time, researchers studying nanostructures were thinking that when we put the crystals under radiation to study them that they would degrade,” said Andre Mkhoyan, a University of Minnesota chemical engineering and materials science professor and lead researcher in the study. “What we showed in this study is that when we took a crystal of titanium dioxide and irradiate it with an electron , the naturally occurring narrow actually filled in and healed themselves.”

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Ceramic nanowires could essentially be used even for car tires reducing even hazardous rubber waste.

A team of MIT-led engineers found a simple, inexpensive way to strengthen Inconel 718 with ceramic nanowires to be used in metal PBF AM processes. The team believes that their general approach could be used to improve many other materials. “There is always a significant need for the development of more capable materials for extreme environments. We believe that this method has great potential for other materials in the future,” said Ju Li, the Battelle Energy Alliance Professor in Nuclear Engineering and a professor in MIT’s Department of Materials Science and Engineering (DMSE).

Li, who is also affiliated with the Materials Research Laboratory (MRL), is one of three corresponding authors of a paper on the work that appeared in the April 5 issue of Additive Manufacturing. The other corresponding authors are Professor Wen Chen of the University of Massachusetts at Amherst and Professor A. John Hart of the MIT Department of Mechanical Engineering.

Co-first authors of the paper are Emre Tekoğlu, an MIT postdoc in the Department of Nuclear Science and Engineering (NSE); Alexander D. O’Brien, an NSE graduate student; and Jian Liu of UMass Amherst. Additional authors are Baoming Wang, an MIT postdoc in DMSE; Sina Kavak of Istanbul Technical University; Yong Zhang, a research specialist at the MRL; So Yeon Kim, a DMSE graduate student; Shitong Wang, an NSE graduate student; and Duygu Agaogullari of Istanbul Technical University. The study was supported by Eni S.p. A. through the MIT Energy Initiative, the National Science Foundation, and ARPA-E.

Continue reading “MIT researchers develop Inconel 718-ceramic nanowires powder for AM” | >

When it comes to human longevity, you might envision nanobots helping our bodies operate more efficiently. But our bodies are biological machines in their own right, evolved to handle any situation in the real world from illness to cold to hunger. Our bodies heal themselves, and they can be programmed to do so if we understood that language better.

This video talks about DNA and genes, and the epigenetic mechanisms that read that information. The epigenetic clock is one way to measure the age of cells, and this can be reversed with current technologies. We discuss experiments by David Sinclair, which made blind mice see again, and experiments by Greg Fahy, which regenerated the immune system of humans and reset their cellular age by 2 years.

Asking our bodies to heal themselves could be one of the largest medical breakthroughs ever, instead of trying mainly chemical means of medication. And it has significant implications for whether or not we can achieve longevity escape velocity and continue to live more or less indefinitely. This promises to be a very interesting topic.

#aging #longevity #science.

Continue reading “Unlocking immortality: the science of reversing aging” | >

Researchers from Changchun University of Science and Technology (CUST) and City University of Hong Kong (CityU) have conducted a survey on the fabrication of flexible sensors using nanomaterials of different dimensions and the triggering methods of interaction between these sensors and virtual reality applications.

The review, published in the International Journal of Extreme Manufacturing (IJEM), highlights the recent advancements in -based flexible sensors (NMFSs) involving various nanomaterial frameworks such as nanoparticles, nanowires, and nanofilms.

Different triggering mechanisms for interaction between NMFSs and metaverse/virtual reality applications are discussed, e.g., skin-mechanics-triggered, temperature-triggered, magnetically triggered, and neural-triggered interfaces.

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Two-photon polymerization is a potential method for nanofabrication to integrate nanomaterials based on femtosecond laser-based methods. Challenges in the field of 3D nanoprinting include slow layer-by-layer printing and limited material options as a result of laser-matter interactions.

In a new report now on Science Advances, Chenqi Yi and a team of scientists in Technology Sciences, Medicine, and Industrial Engineering at the Wuhan University China and the Purdue University U.S., showed a new 3D nanoprinting approach known as free-space nanoprinting by using an optical brush.

This concept allowed them to develop precise and spatial writing paths beyond optical limits to form 4D functional structures. The method facilitated the rapid aggregation and solidification of radicals to facilitate polymerization with increased sensitivity to , to provide high accuracy, free-space painting much like Chinese brush painting on paper.

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A quickie about E5.

Hello, i am back! Blood, sweat and tears have been shed these past months of absence. But enough sweating was done during the summer, tears have already been shed, so that just leaves me with blood. And whether taking a part of blood (plasma) and injecting it into old animals is enough for rejuvenation. That’s right, many of you may remember, earlier this year i made a video on the oldest living rat.- and now we have some updates: in particular, (i) what actually were the rats given, and (ii) what changes were seen, showing both some DNAm and glycan age data.

Find me on Twitter — https://twitter.com/EleanorSheekey.

Continue reading “Pig plasma to live longer?” | >

The method is still at its basic stage but multiple such microscopes could be pooled up to build a larger quantum computer.

Researchers at the IBS Center for Quantum Nanoscience (QNS) in Seoul, South Korea, have successfully demonstrated using a scanning tunneling microscope (STM) to perform quantum computation using electrons as qubits, a press release said.

Quantum computing is usually associated with terms such as atom traps or superconductors that aid in isolating quantum states or qubits that serve as a basic unit of information. In many ways, everything in nature is quantum and can be used to perform quantum computations as long as we can isolate its quantum states.

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An unnamed Ukrainian scientist has allegedly developed a new material that can mask heat signatures of troops and gear from Russian drones.

“Necessity is the mother of all inventions,” as the saying goes, and this saying has never been more accurate than when applied to wargear. The latest exemplar of this is a new “invisibility cloak” developed by a Ukrainian material scientist to help protect Ukrainians from Russian drones. As reported by inews.

Aurumarcus/iStock.

Hidden in plain sight.

Continue reading “New Ukrainian nanotech ‘cloak’ can hide people from drones” | >

Contrary to existing antimicrobial coatings, which function by eliminating microorganisms upon contact over some adequate duration of time, the technology developed by FendX takes a preventative approach. Utilizing nanotechnology to develop film and spray protective coatings that prevent microbial adherence to surfaces, thereby minimizing the potential for transmission. This is a significant departure from reactive coating surfaces in the market, offering a proactive method for reducing the occurrence and spread of HAIs.

REPELWRAP™ film, is FendX’s lead product in development and is with their manufacturer who is gearing up to conduct pilot runs on their commercial manufacturing line to create intermediate films for testing. FendX is also developing a spray-based product using their patent-pending nanotechnology. This spray offers the same preventative measures against microbial adherence and has the potential to be more versatile and easier-to-apply to surfaces. It not only demonstrates the same repelling properties but also effectively inactivates any residual microorganisms on the coated surface.

FendX is focused on healthcare settings, but is also exploring potential applications in other multiple billion high-traffic industries. It is anticipated that FendX’s future protective coatings can be applied to various high-touch surfaces: from bed rails and IV poles in healthcare to potential handrails in public transport systems to door handles in restaurants and public bathrooms. Given that the technology inhibits microbial adherence, it has the potential to significantly reduce the spread of pathogens in virtually any setting where human interaction with surfaces occurs. This broad applicability signifies that the market opportunity could be vastly larger than the projected $7.6 billion for antimicrobial coatings by 2025, opening doors to various industries and settings.

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A new study, published in Nature Nanotechnology, may offer a strategy that mitigates negative side effects associated with intravenous injection of nanoparticles commonly used in medicine.

“Nanotechnology’s main advantage over conventional medical treatments is its ability to more precisely target tissues, such as targeted by chemotherapy. However, when nanoparticles are injected, they can activate part of the called complement,” said senior author Dmitri Simberg, Ph.D., professor of Nanomedicine and Nanosafety at the University of Colorado Skaggs School of Pharmacy on the University of Colorado Anschutz Medical Campus.

Complement is a group of proteins in the immune system that recognize and neutralize bacteria and viruses, including nanoparticles which are foreign to the body. As a result, nanoparticles are attacked by triggering side effects that include shortness of breath, elevated heart rate, fever, hypotension, and, in rare cases, anaphylactic shock.

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