Archive for the ‘nanotechnology’ category

Aug 4, 2021

Diatoms, an Evolutionary Mystery, Come into Nano-Focus

Posted by in category: nanotechnology

The jewels of the microbial world, when seen with new nano-scale imaging techniques, look like little modernist cathedrals.

Aug 4, 2021

Kazuhiro Gomi & Dr. Joe Alexander — Bio-Digital Twins, Quantum Computing, Precision Medicine — NTT

Posted by in categories: biotech/medical, business, computing, engineering, health, nanotechnology, quantum physics, wearables

Bio-Digital Twins, Quantum Computing, And Precision Medicine — Mr. Kazuhiro Gomi, President and CEO, and Dr. Joe Alexander, MD, Ph.D., Director, Medical and Health Informatics (MEI) Lab, NTT Research.

Mr. Kazuhiro Gomi, is President and CEO of NTT Research (https://ntt-research.com/), a division of The Nippon Telegraph and Telephone Corporation, commonly known as NTT (https://www.global.ntt/), a Japanese telecommunications company headquartered in Tokyo, Japan. Mr. Gomi has been at NTT for more than 30 years and was involved in product management/product development activities at the beginning of his tenure. In September of 2009, Mr. Gomi was first named to the Global Telecoms Business Power100 — a list of the 100 most powerful and influential people in the telecoms industry. He was the CEO of NTT America Inc. from 2010 to 2019 and also served on the Board of Directors at NTT Communications from 2012 to 2019. Mr. Gomi received a Masters of Science in Industrial Engineering from the University of Illinois at Urbana-Champaign, and a Master of Science in Electrical Engineering from Keio University, Tokyo. Mr. Gomi is a member of the board at US Japan Council, a non-profit organization aimed at fostering a better relationship between the US and Japan.

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Jul 30, 2021

Coming soon: The quick test that can detect cancer cells in urine

Posted by in categories: biotech/medical, nanotechnology

A nanoparticle diagnostic tool developed by MIT can detect cancer in urine. It could also be used in scans to detect the disease anywhere in the body.

Jul 30, 2021

3D Printed Material Might Replace Kevlar

Posted by in categories: materials, nanotechnology

Prior to 1970, bulletproof vests were pretty iffy, with a history extending as far as the 1500s when there were attempts to make metal armor that was bulletproof. By the 20th century there was ballistic nylon, but it took kevlar to produce garments with real protection against projectile impact. Now a 3D printed nanomaterial might replace kevlar.

A group of scientists have published a paper that interconnected tetrakaidecahedrons made up of carbon struts that are arranged via two-photon lithography.

We know that tetrakaidecahedrons sound like a modern invention, but, in fact, they were proposed by Lord Kelvin in the 19th century as a shape that would allow things to be packed together with minimum surface area. Sometimes known as a Kelvin cell, the shape is used to model foam, among other things.

Jul 29, 2021

A single-molecule laser nanospectroscopy technique with micro-electron volt energy resolution

Posted by in categories: chemistry, computing, nanotechnology

When molecules are excited, they can give rise to a variety of energy conversion phenomena, such as light emission and photoelectric or photochemical conversion. To unlock new energy conversion functions in organic materials, researchers should be able to understand the nature of a material’s excited state and control it.

So far, many scientists have used spectroscopy techniques based on in research focusing on excited states. Nonetheless, they were unable to use light to examine nanoscale materials, due to its limitations in so-called diffraction. The spectroscopic measurement methods applied to electron and scanning probe microscopes that can observe substances with atomic resolutions, on the other hand, are still underdeveloped.

Researchers at RIKEN, the Japan Science and Technology Agency (JST), University of Tokyo and other Institutes in Japan have recently developed a laser nanospectroscopy technique that could be used to examine individual molecules. This technique, presented in a paper published in Science, could open up new possibilities for the development of various new technologies, including light-emitting diodes (LEDs), photovoltaics and photosynthetic cells.

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Jul 29, 2021

Chaotic electrons heed ‘limit’ in strange metals

Posted by in categories: energy, nanotechnology, quantum physics

Electrons in metals try to behave like obedient motorists, but they end up more like bumper cars. They may be reckless drivers, but a new Cornell-led study confirms this chaos has a limit established by the laws of quantum mechanics.

The team’s paper, “T-Linear Resistivity From an Isotropic Planckian Scattering Rate,” written in collaboration with researchers led by Louis Taillefer from the University of Sherbrooke in Canada, published July 28 in Nature. The paper’s lead author is Gael Grissonnanche, a postdoctoral fellow with the Kavli Institute at Cornell for Nanoscale Science.

Metals carry electric current when electrons all move together in tandem. In most metals, such as the copper and gold used for electrical wiring, the electrons try to avoid each other and flow in unison. However, in the case of certain “strange” metals, this harmony is broken and electrons dissipate energy by bouncing off each other at the fastest rate possible. The laws of quantum mechanics essentially play the role of an electron traffic cop, dictating an on how often these collisions can occur. Scientists previously observed this limit on the collision rate, also known as the “Planckian limit,” but there is no concrete theory that explains why the limit should exist, nor was it known how electrons reach this limit in . So Ramshaw and his collaborators set out to carefully measure it.

Jul 27, 2021

TAME Q&A: Lessons for Progress on Aging | Nir Barzilai, Albert Einstein School of Medicine

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

More TAME! The first part of this has a lot of result data.

Foresight Biotech & Health Extension Meeting sponsored by 100 Plus Capital.
2021 program & apply to join: https://foresight.org/biotech-health-extension-program/

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Jul 26, 2021

Qubit Spin Ice: Emergent Magnetic Monopoles Isolated Using Quantum-Annealing Computer

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

Project offers new step toward study of emergence, ‘materials by design,’ and future nanomagnets.

Using a D-Wave quantum-annealing computer as a testbed, scientists at Los Alamos National Laboratory have shown that it is possible to isolate so-called emergent magnetic monopoles, a class of quasiparticles, creating a new approach to developing “materials by design.”

“We wanted to study emergent magnetic monopoles by exploiting the collective dynamics of qubits,” said Cristiano Nisoli, a lead Los Alamos author of the study. “Magnetic monopoles, as elementary particles with only one magnetic pole, have been hypothesized by many, and famously by Dirac, but have proved elusive so far.”

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Jul 25, 2021

Nanocatalytic Spontaneous Ignition and Self-Supporting Room-Temperature Combustion

Posted by in categories: nanotechnology, particle physics

Circa 2005 o,.o.

Stable and reproducible spontaneous self-ignition and self-supporting combustion have been achieved at room temperature by exposing nanometer-sized catalytic particles to methanol/air or ethanol/air gas mixtures. Without any external ignition, structurally supported platinum nanoparticles instantaneously react with the gas mixtures. The reaction releases heat and produces CO2 and water. Such reactions starting at ambient temperature have reached both high (]600 °C) and low (a few tenths of a degree above room temperature) reaction temperatures. The reaction is controlled by varying the fuel/air mixture. Catalytic activity could be dramatically changed by reducing particle size and changing particle morphology.

Jul 24, 2021

Quantum control of a nanoparticle optically levitated in cryogenic free space

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

Quantum control of an optically levitated nanoparticle with a mass of just one femtogram is demonstrated in a cryogenic environment by feedback-cooling the motion of the particle to the quantum ground state.

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