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gold News
Nanotech, Deep Learning Combine to Detect Pediatric Tuberculosis
SEATTLE, Sept. 15, 2022 — A technique for diagnosing tuberculosis (TB) in children takes advantage of the optical properties of gold nanoparticles to detect the disease. The technique uses an artificial intelligence (AI) algorithm to enhance the sensitivity of the test. According to the research team from the University of Washington School of Medicine and Tulane University, it is particularly challenging to diagnose TB in children. Samples of the bacteria that are markers of the disease are difficult to obtain
Plasmonics-Based COVID-19 Test Delivers Results in POC Settings
NEW YORK, Aug. 17, 2022 — Researchers at Columbia Engineering and Rover Diagnostics, a Columbia Technology Ventures company, used plasmonic nanoparticles with compact optics to develop a real-time, multiplexed, reverse-transcriptase quantitative polymerase chain reaction...
Atomically Smooth Gold Crystals Enable Nanophotonic Applications
LONDON, July 19, 2022 — Researchers at KAIST and collaborators have demonstrated a platform to guide compressed lightwaves in extremely thin Van der Waals crystals. The researchers believe that the method, used to guide mid-infrared light with minimal loss, will enable...
Optofluidic Platform Identifies Drug-Resistant Disease
BREISGAU, Germany, Nov. 10, 2021 — Citing increased resistance to antibiotics on the rise globally, researchers from Fraunhofer Institute for Physical Measurement Techniques (Fraunhofer IPM), working alongside those from the Ludwig Maximilian University of Munich, have developed a...
Optical Tweezing Inspires Nanoscopic Trapping Method
SYDNEY, March 9, 2021 — Researchers from the University of Technology Sydney (UTS) have deployed the existing principles of optical tweezer technology, which enables the manipulation and assemblage of nanoparticles, as a base for a technique that allows them to manipulate...
Chirality and Nanotechnology Speed Up Light-Based Drug Screening
ANN ARBOR, Mich., March 2, 2021 — A team of international collaborators has introduced a drug-screening technique that relies on nanostructure chirality as its fundamental property. (Chirality is a quality that, for a physical object, means it cannot be superimposed on its mirror...
Sculpted Light Controls Chemical Catalysts
STANFORD, Calif., Jan. 18, 2021 — Material scientists at Stanford University have developed a method to exert control over catalysts using light and advanced fabrication and characterization techniques. The work could be an early step toward more efficient catalysts, new forms of...
Scientists Spin Graphene and Gold into Terahertz Waves
DRESDEN, Germany, Dec. 29, 2020 — A German-Spanish research team has developed a graphene-based approach for increasing the efficiency with which the scientists were able generate terahertz pulses. In the system, the researchers coated a graphene sheet with a metallic lamellar...
Laser-Powered Nanomotors Follow Their Path
TOKYO, Nov. 4, 2020 — Researchers from the Institute of Industrial Science at the University of Tokyo have designed linear nanomotors that can be made to move in controlled directions by laser light. The technology has applications in microfluidics, including...
Controlling Ultrastrong Light-Matter Coupling at Room Temperature
GOTHENBURG, Sweden, Sept. 25, 2020 — The interaction between light and electrons in a system composed of two gold mirrors separated by a small distance and plasmonic gold nanorods produced ultrastrong coupling between light and matter at room temperature. The work stems from an...
Gold Nanoparticle-Based Laser System Modeled for Cell Transfection
HANNOVER, Germany, April 11, 2016 — An optically induced method has been modeled for an efficient and cell-preserving transfection — the delivery of DNA or RNA into eukaryotic cells — in high-throughput screening. Selective manipulation of cells with fluorescent 10 kDa...
Nanoscale Features Used to Color Plastics
KONGENS LYNGBY, Denmark, July 31, 2014 — Nanoscale structures could one day take the place of dyes in the production of colored plastics. A team from the Technical University of Denmark has found a more environmentally friendly way to produce such plastics, using the shapes of materials...
‘Metamirror’ Doubles Incident Light Frequency
AUSTIN, Texas, July 8, 2014 — A nanostructure produces nonlinear effects a million times greater than traditional, macro-scale nonlinear crystals, according to a team of researchers from Texas and Germany. This “metamirror” could enable miniaturized laser systems and...
Sensor Studies Chemicals with Single Chip
VIENNA, June 12, 2014 — Imagine being able to identify and study chemicals through a combined system of laser light and detectors. A tiny sensor, developed by researchers at the Vienna University of Technology, can do just that. Using miniaturized infrared laser...
Team Bridges Nanocatalyst Size Gap for Real-Time Data
COLUMBIA, S.C., and HOUSTON, June 9, 2014 — Obtaining real-time reaction information from nanocatalysts has long impeded attempts to describe them in detailed kinetic behavior. But a team from the University of South Carolina and Rice University has discovered just how to do it. The...
Gold Material Cuts Glare, Repels Water
IRVINE, Calif., April 7, 2014 — An accidental discovery has scientists looking at light glare through new eyes.
Shrink Wrapping Disease Biomarkers
IRVINE, Calif., March 21, 2014 — A new technique for better detection of infectious disease biomarkers has scientists looking at ordinary shrink wrap in a whole new way.
Nanosensors on CDs Simplify Bio Sample Study
MADRID, March 17, 2014 — CD players have been overshadowed by mp3 files in the entertainment world, but in the biology lab, they could be the wave of the future.
Microstructures Improve Data Transfer
SALT LAKE CITY, March 12, 2014 — Microscopic structures that use light in metals to relay information could improve the speed of wireless technology and enable the printing of magnetic materials.
Optical Nanocavity Boosts Light Absorption
BUFFALO, N.Y., SHANGHAI and SHENYANG, China, Feb. 27, 2014 — An optical nanocavity that boosts light absorption in ultrathin semiconductors could potentially improve solar cells and cameras, and maybe even harvest energy more efficiently. Currently in development by an international team from the University...
With Laser-Doping, Silicon Responds to IR Light
CAMBRIDGE, Mass., Jan. 7, 2014 — New IR imaging systems could be possible now that a new method has demonstrated that silicon is more responsive to IR light when laser-doped with one of its most dangerous impurities: gold. Detectors that are responsive to a broad range of IR light...
Nanorods Synthesized for Large-Scale Manufacturing
RALEIGH, N.C., Nov. 20, 2013 — A new technique that produces nanoscale gold rods in large quantities while also controlling their optical properties and dimensions could facilitate their high-volume manufacture for applications in biomedicine. Because the optical properties of...
Plasmonics Creates Invisible Photodetector
STANFORD, Calif., May 23, 2012 — An invisible light-detecting device that can see without being seen was created using plasmonic cloaking and could lead to a new class of devices that controls the flow of light at the nanoscale to produce both optical and electronic functions.
Nanoparticles Coaxed into Self-Assembly
BERKELEY, Calif., May 15, 2012 — A simple and inexpensive technique directs the self-assembly of nanoparticles into device-ready materials and has applications in fields including computer memory storage, energy storage and harvesting, remote sensing, catalysis, light management...
Metamaterials Pave Way for Superlens
ITHACA, N.Y., Nov. 11, 2011 — Casting tiny, oddly shaped metal structures inside plastic molds could give a boost to creating metamaterials for making “superlenses” that can image proteins, viruses and DNA. Metamaterials, which offer new ways to manipulate...
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May 2024
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