Archive for the ‘nanotechnology’ category: Page 78
Jul 2, 2022
New exotic protein rotors and axels will help nanomachines move faster
Posted by Jose Ruben Rodriguez Fuentes in categories: innovation, nanotechnology
Our ability to create nano scale products is getting better fast, and these breakthroughs could transform every industry from manufacturing to healthcare and beyond.
Jul 1, 2022
The Next Century of War
Posted by Dan Breeden in categories: drones, internet, nanotechnology, robotics/AI, space
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Future battlefields will employ ever-more technology, whether that battlefield is on earth, in the sea, in space, or in cyberspace. Today we will examine the roles robots, drones, artificial intelligence, armored suits, and nanotech may play in the future of war.
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Jul 1, 2022
Universal optothermal micro/nanoscale rotors
Posted by Dan Breeden in categories: biological, nanotechnology, robotics/AI, transportation
The fundamental rotation of micro and nano-objects is crucial for the functionality of micro and nanorobotics, as well as three-dimensional imaging and lab-on-a-chip systems. These optical rotation methods can function fuel-free and remotely, and are therefore better suited for experiments, while current methods require laser beams with designed intensity profiles or objects with sophisticated shapes. These requirements are challenging for simpler optical setups with light-driven rotation of a variety of objects, including biological cells.
In a new report now published in Science Advances, Hongru Ding and a research team in engineering and materials science at the University of Texas at Austin, U.S., developed a universal approach for the out-of-plane rotation of various objects based on an arbitrary low-power laser beam. The scientists positioned the laser source away from the objects to reduce optical damage from direct illumination and combined the rotation mechanism via optothermal coupling with rigorous experiments, coupled to multiscale simulations. The general applicability and biocompatibility of the universal light-driven rotation platform is instrumental for a range of engineering and scientific applications.
Jul 1, 2022
Michelle Simmons: quantum machines at the atomic limit | The Royal Society
Posted by Dan Breeden in categories: biological, nanotechnology, particle physics, quantum physics
Join Professor Michelle Simmons to find out how scientists are delivering Richard Feynman’s dream of designing materials at the atomic limit for quantum machines. 🔔Subscribe to our channel for exciting science videos and live events, many hosted by Brian Cox, our Professor for Public Engagement: https://bit.ly/3fQIFXB
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Jun 30, 2022
Self Replicating Machines
Posted by Dan Breeden in categories: biotech/medical, nanotechnology
A look at the concept of Self-Replicating Machines, Universal Assemblers, von Neumann Probes, Grey Goo, and Berserkers. While we will discuss the basic concept and some on-Earth applications like Medical Nanotechnology our focus will be on space exploration and colonization aspects.
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Jun 30, 2022
Materials with nanoscale components will change what’s possible
Posted by Jose Ruben Rodriguez Fuentes in categories: engineering, nanotechnology
This year’s 35 Innovators are making it possible for familiar materials like glass, steel, and electronics to have completely new properties.
Jun 29, 2022
Using colloidal nanodiscs for 3D bioprinting tissues and tissue models
Posted by Dan Breeden in categories: 3D printing, bioprinting, biotech/medical, engineering, nanotechnology
Extrusion-based 3D printing/bioprinting is a promising approach to generating patient-specific, tissue-engineered grafts. However, a major challenge in extrusion-based 3D printing and bioprinting is that most currently used materials lack the versatility to be used in a wide range of applications.
New nanotechnology has been developed by a team of researchers from Texas A&M University that leverages colloidal interactions of nanoparticles to print complex geometries that can mimic tissue and organ structure. The team, led by Dr. Akhilesh Gaharwar, associate professor and Presidential Impact Fellow in the Department of Biomedical Engineering, has introduced colloidal solutions of 2D nanosilicates as a platform technology to print complex structures.
2D nanosilicates are disc-shaped inorganic nanoparticles 20 to 50 nanometers in diameter and 1 to 2 nanometers in thickness. These nanosilicates form a “house-of-cards” structure above a certain concentration in water, known as a colloidal solution.
Jun 28, 2022
Turning plastic waste into hydrogen and high-value carbons
Posted by Omuterema Akhahenda in categories: nanotechnology, particle physics
The ever-increasing production and use of plastics over the last half century has created a huge environmental problem for the world. Currently, most of the 4.9 billion tonnes of plastics ever produced will end up in landfills or the natural environment, and this number is expected to increase to around 12 billion tonnes by 2050.
In collaboration with colleagues at universities and institutions in the UK, China and the Kingdom of Saudi Arabia, researchers in the Edwards/ Xiao group at Oxford’s Department of Chemistry have developed a method of converting plastic waste into hydrogen gas which can be used as a clean fuel, and high-value solid carbon. This was achieved with a new type of catalysis developed by the group which uses microwaves to activate catalyst particles to effectively ‘strip’ hydrogen from polymers.
The findings, published in Nature Catalysis, detail how the researchers mixed mechanically-pulverised plastic particles with a microwave-susceptor catalyst of iron oxide and aluminium oxide. The mixture was subjected to microwave treatment and yielded a large volume of hydrogen gas and a residue of carbonaceous materials, the bulk of which were identified as carbon nanotubes.
Jun 28, 2022
Researchers Develop Stable Fibers Utilizing Boron Nitride Nanotubes
Posted by Dan Breeden in categories: energy, nanotechnology
Researchers from Rice University claim that processing boron nitride nanotubes used to be challenging, but not anymore.
Professors Matteo Pasquali and Angel Martí, along with their team of researchers, have simplified the handling of the highly valuable nanotubes, making them more suited for use in large-scale applications including electronics, aerospace, and energy-efficient materials.
According to the study’s findings published in Nature Communications, boron nitride nanotubes, also known as BNNTs, can self-assemble into liquid crystals when exposed to certain circumstances, particularly concentrations of chlorosulfonic acid that are greater than 170 parts per million by weight.
