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Archive for the ‘nanotechnology’ category: Page 13

Oct 7, 2023

Free-space nanoprinting beyond optical limits to create 4D functional structures

Posted by in categories: biotech/medical, engineering, nanotechnology

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.

Oct 7, 2023

Pig plasma to live longer?

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

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.

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Oct 7, 2023

Scientists create a novel quantum platform using atoms

Posted by in categories: computing, nanotechnology, particle physics, quantum physics

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.

Oct 7, 2023

New Ukrainian nanotech ‘cloak’ can hide people from drones

Posted by in categories: drones, nanotechnology

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.

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Oct 6, 2023

Beyond Treatment: FendX Nanotechnology as the Future of Preventative Biotech

Posted by in categories: biotech/medical, entertainment, nanotechnology

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.

Oct 6, 2023

New research may make future design of nanotechnology safer with fewer side effects

Posted by in categories: biotech/medical, nanotechnology

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.

Oct 6, 2023

Biocompatible focused ultrasound delivers cancer drugs on target

Posted by in categories: biotech/medical, chemistry, nanotechnology

Remote control of chemical reactions in biological environments could enable a diverse range of medical applications. The ability to release chemotherapy drugs on target in the body, for example, could help bypass the damaging side effects associated with these toxic compounds. With this aim, researchers at California Institute of Technology (Caltech) have created an entirely new drug-delivery system that uses ultrasound to release diagnostic or therapeutic compounds precisely when and where they are needed.

The platform, developed in the labs of Maxwell Robb and Mikhail Shapiro, is based around force-sensitive molecules known as mechanophores that undergo chemical changes when subjected to physical force and release smaller cargo molecules. The mechanical stimulus can be provided via focused ultrasound (FUS), which penetrates deep into biological tissues and can be applied with submillimetre precision. Earlier studies on this method, however, required high acoustic intensities that cause heating and could damage nearby tissue.

To enable the use of lower – and safer – ultrasound intensities, the researchers turned to gas vesicles (GVs), air-filled protein nanostructures that can be used as ultrasound contrast agents. They hypothesized that the GVs could function as acousto-mechanical transducers to focus the ultrasound energy: when exposed to FUS, the GVs undergo cavitation with the resulting energy activating the mechanophore.

Oct 5, 2023

Chemistry Nobel Prize goes to quantum dots that guide surgeons

Posted by in categories: biotech/medical, chemistry, nanotechnology, quantum physics

From LED lights to medical imaging, quantum dots have many varied applications.

The creation of quantum dots earned its developers the Nobel Prize in Chemistry 2023, an invention that could have also been a contender for the Physics Prize. These tiny elements of nanotechnology, which are so miniature that their size dictates their properties, are today used in many useful and practical applications and have even been reported to direct surgeons as they tackle tricky tumor tissue.


Nobel Prize/Twitter.

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Oct 5, 2023

Ray Kurzweil Wants To Put Nanobots In Our Bloodstream

Posted by in categories: employment, life extension, nanotechnology, Ray Kurzweil, robotics/AI, singularity

Would you want to live forever? On this episode, Neil deGrasse Tyson and author, inventor, and futurist Ray Kurzweil discuss immortality, longevity escape velocity, the singularity, and the future of technology. What will life be like in 10 years?

Could we upload our brain to the cloud? We explore the merger of humans with machines and how we are already doing it. Could nanobots someday flow through our bloodstreams? Learn about the exponential growth of computation and what future computing power will look like.

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Oct 4, 2023

Using Nanoparticles to Treat Cancer

Posted by in categories: biotech/medical, chemistry, nanotechnology

PhD candidate at UniSA’s Applied Chemistry and Translational Biomaterials (ACTB) Group, Cintya Dharmayanti, has taken out UniSA’s 2021 Three Minute Thesis (3MT) with a condensed presentation of her research about developing nanoparticles for cancer treatment, potentially leading to more effective treatments and reduced side effects. She will be competing in the 2023 FameLab National Finals with a presentation titled, “Behind enemy lines: Tiny assassins in the war against cancer.

For more from University of South Australia visit: https://www.unisa.edu.au/connect/alumni-network/alumni-news/…Track=true.

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