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Jan 30, 2024

Researchers slow down light in metasurfaces with record low loss

Posted by in categories: materials, nanotechnology

The speed of light can be intentionally reduced in various media. Various techniques have been developed over the years to slow down light, including electromagnetically induced transparency (EIT), Bose-Einstein condensate (BEC), photonic crystals, and stimulated Brillouin scattering (SBS).

Notably, researchers from Harvard, led by Lene Vestergaard Hau, reduced light speed to 17 m/s in an ultracold atomic gas using EIT, which sparked the interest in exploring EIT analogs in metasurfaces, a transformative platform in optics and photonics.

Despite the benefits, slow-light structures face a significant challenge: Loss, which limits storage time and interaction length. This issue is particularly severe for analogs of EIT due to scattering loss of nanoparticles and sometimes absorption loss of materials.

Jan 30, 2024

Harnessing synthetic active particles for physical reservoir computing

Posted by in categories: computing, particle physics

The ability of living systems to process signals and information is of vital importance. Inspired by nature, Wang and Cichos show an experimental realization of a physical reservoir computer using self-propelled active microparticles to predict chaotic time series such as the Mackey–Glass and Lorenz series.

Jan 30, 2024

How to Build an Origami Computer

Posted by in categories: computing, mathematics

Two mathematicians have shown that origami can, in principle, be used to perform any possible computation.

Jan 30, 2024

New Microchip Breakthrough: New Era in Electronics?

Posted by in categories: computing, innovation

Ok… here we go again! (Yes, this is real. Already being tested in full wafers.)

Jan 30, 2024

Elon Musk’s Neuralink Achieves Breakthrough with Human Brain Implant

Posted by in categories: computing, Elon Musk, neuroscience

Neuralink, led by Elon Musk, has accomplished a major feat by implanting a brain chip in a human for the first time. Discover the groundbreaking advancements in brain-computer interfaces.

Jan 30, 2024

Scientists develop new technology for targeted cancer therapy

Posted by in category: biotech/medical

Acoustic tweezers can control target movement through the interaction of momentum between an acoustic wave and an object. Due to their high tissue penetrability and strong acoustic radiation force, such tweezers overcome the limitations of optical and magnetic tweezers, thus making them suitable for in vivo cell manipulation.

A research team led by Prof. Zheng Hairong from the Shenzhen Institute of Advanced Technology (SIAT) of the Chinese Academy of Sciences (CAS) has recently developed a new type of acoustic —the phased-array holographic (PAHAT) system—which is based on a high-density planar array transducer capable of generating tunable three-dimensional bulk acoustic waves. The researchers hope this system can realize a pharmacological version of “telekinesis.” The study was published in Nature Communications on June 6.

The in vivo environment is extremely complex, due to the different characteristics of various tissues, organs, bones, blood vessels, and blood flow. Such a complex environment creates a huge challenge: How can acoustic methods be used to “trap” bacteria so they can produce therapeutic effects on tumors?

Jan 30, 2024

Large language models improve annotation of prokaryotic viral proteins

Posted by in categories: biotech/medical, robotics/AI

The latest in the intersection of large language models and life science: virus sequences, virus proteins, and their function.

Large language models improve annotation of prokaryotic viral proteins.


Ocean viral proteome annotations are expanded by a machine learning approach that is not reliant on sequence homology and can annotate sequences not homologous to those seen in training.

Jan 30, 2024

A method to fabricate long rolls of subnanocomposite dielectric polymers

Posted by in categories: energy, sustainability, transportation

Engineers and material scientists have been trying to develop increasingly advanced devices, to meet the growing needs of the electronics industry. These devices include electrostatic capacitors, devices that can store electrical energy in a dielectric between a pair of electrodes through the accumulation of electric charge on the dielectric surfaces.

These capacitors are crucial components of various technologies, including electric vehicles and photovoltaics (PVs). They are often fabricated using polymers as dielectric materials, synthetic substances made up of large organic molecules with good intrinsic flexibility and insulating properties.

Researchers at Tsinghua University and other institutes in China recently introduced a new strategy to fabricate filled with subnanosheets exhibiting highly advantageous properties. Their proposed method, outlined in a Nature Energy paper, allowed them to fabricate a 100-meter-long roll of a polymer-based subnanocomposite film.

Jan 30, 2024

Elon Musk’s Neuralink implants first brain chip in human

Posted by in categories: Elon Musk, robotics/AI

The ambition is to supercharge human capabilities, treat neurological disorders like ALS or Parkinson’s, and may be one day achieve a symbiotic relationship between humans and artificial intelligence.

“The first human received an implant from Neuralink yesterday and is recovering well,” Musk said in a post on X, formerly Twitter.

“Initial results show promising neuron spike detection,” he added.

Jan 30, 2024

How Satellites Are Becoming the New Cellphone Towers

Posted by in categories: mobile phones, satellites

Larger antennas and better beamforming are routing calls through orbit.