Feature Channels: Nanotechnology

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Newswise:Video Embedded capturing-3d-microstructures-in-real-time
VIDEO
Released: 2-Apr-2020 5:50 PM EDT
Capturing 3D microstructures in real time
Argonne National Laboratory

Argonne researchers have invented a machine-learning based algorithm for quantitatively characterizing material microstructure in three dimensions and in real time. This algorithm applies to most structural materials of interest to industry.

Newswise: 228146_web.jpg
Released: 31-Mar-2020 1:50 PM EDT
On Mars or Earth, biohybrid can turn carbon dioxide into new products
University of California, Berkeley

If humans ever hope to colonize Mars, the settlers will need to manufacture on-planet a huge range of organic compounds, from fuels to drugs, that are too expensive to ship from Earth.

Newswise: 032720-bes-nanocages.jpg?itok=NZrmyZto
Released: 30-Mar-2020 9:00 AM EDT
Nanocages Trap and Separate Elusive Noble Gases
Department of Energy, Office of Science

Researchers have discovered how two-dimensional nanoscale cages trap some noble gases. These cages can trap atoms of argon, krypton, and xenon at above freezing temperatures. Noble gases are hard to trap using other methods because they condense at temperatures far below freezing.

Newswise: Experiments in Mice And Human Cells Shed Light On Best Way to Deliver Nanoparticle Therapy For Cancer
Released: 26-Mar-2020 8:00 AM EDT
Experiments in Mice And Human Cells Shed Light On Best Way to Deliver Nanoparticle Therapy For Cancer
Johns Hopkins Medicine

Researchers in the cancer nanomedicine community debate whether use of tiny structures, called nanoparticles, can best deliver drug therapy to tumors passively — allowing the nanoparticles to diffuse into tumors and become held in place, or actively — adding a targeted anti-cancer molecule to bind to specific cancer cell receptors and, in theory, keep the nanoparticle in the tumor longer. Now, new research on human and mouse tumors in mice by investigators at the Johns Hopkins Kimmel Cancer Center suggests the question is even more complicated.

Newswise: 032420-bes-nanolasers.jpg?itok=72KfYA6r
Released: 25-Mar-2020 2:05 PM EDT
Upconverting Nanolasers from Subwavelength Plasmons: Stability and Ultralow Powers
Department of Energy, Office of Science

Researchers have created miniature lasers that are stable and work continuously at room temperature. The lasers use arrays of nanopillars with nanoparticles that can absorb two photons of light and emit them as a single photon with higher energy. They could have applications in quantum technologies, imaging, and other areas.

Newswise: 032320-bes-metasurface.jpg?itok=5nPjKgm-
Released: 25-Mar-2020 1:10 PM EDT
New Metasurface Helps Make the Switch to Terahertz Frequencies
Department of Energy, Office of Science

Researchers are finding new applications for radiation between microwaves and infrared light. This terahertz radiation could lead to new capabilities in imaging, communications, and other areas. To expand its use, researchers need switches that work in less than a thousandth of a second, have a high contrast between “off” and “on” states, and efficiently carry electrical charges. Researchers have developed a new metasurface that does all three.

Newswise: Engineered Nanowrappers Carry and Release Tiny Cargo
Released: 24-Mar-2020 2:30 PM EDT
Engineered Nanowrappers Carry and Release Tiny Cargo
Department of Energy, Office of Science

Scientists have discovered a new method for creating hollow metallic nanostructures. They used advanced electron tomography to collect 3D images of the transition from gold nanocubes with sharp corners to gold-silver alloy nanowrappers with pores at their corners. The pores are large and regular enough to carry molecule or nanoscale-size particles.

Newswise: Banning Carbon Nanotubes Would Be Scientifically Unjustified
Released: 23-Mar-2020 11:45 AM EDT
Banning Carbon Nanotubes Would Be Scientifically Unjustified
Penn State Materials Research Institute

In a correspondence published recently in the journal Nature Nanotechnology, scientists from Penn State and 31 other universities and medical centers take issue with an article published in the same journal calling for the banning or restriction of carbon nanotubes in Europe.

Newswise: Lighting the Way from Repulsion to Attraction
Released: 23-Mar-2020 8:40 AM EDT
Lighting the Way from Repulsion to Attraction
Department of Energy, Office of Science

Scientists are working on ways to build atomic structures to specifications and are studying these methods on a larger scale using ‘big atoms.’ These ‘big atoms’ are micro-particles of silica mixed into liquid crystals. Silica particles, when mixed into liquid crystals, can act a lot like individual atoms. The geometry of the particles determines how they interact with each other the same way the electrons around an atom determine how it interacts with other atoms. Scientists can observe interactions in these ‘big atoms’ with optical microscopes, removing the need for atomic-scale imaging.


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