Nanotechnology Spotlight – Latest Articles

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Showing Spotlights 1 - 8 of 2426 in category All (newest first):

 

Structural engineering on the atomic scale

graphene-defectsFor the enormous promises of graphene and other two-dimensional (2D) materials to be fulfilled, scientists need a much better understanding of how specific types of defects in the crystal structure, including those that change location over time, affect its properties. To do that, they first need to identify the location and type of defect and then be able to precisely alter the structure of 2D materials in order to tailor their properties for applications based on them. Addressing this issue, researchers now have demonstrated structural engineering and atomic-scale analysis of graphene up to a level that so far has not been possible.

Jun 17th, 2021

MXenes - game changers in the materials field

MxeneMXenes move nanotechnology from using a few 'wonder materials' to manipulation of hundreds and even thousands of 2D building blocks to assemble designer materials and devices. Those materials can contribute to solving the key problems in the fields of energy (generation, harvesting, storage), water (desalination, purification), food (longer storage, sensing of degradation/bacteria), environment (clean air and water) and medicine (treatment, diagnostics, artificial organs).

Jun 16th, 2021

Targeting cancer cells over healthy cells with nanoparticle shape

cells-with-nanoparticlesBy using rod-shaped nanoparticles, in combination with inhibitors to other uptake pathways, researchers achieved targeting cancer cells over healthy cells. The possible benefits from this novel technique are twofold: Restricting healthy cells from taking anticancer drugs to help reduce the side effects of drugs for patients; and helping overcome chemoresistance (the uptake of the chemo drug into healthy cells in the tumor setting is one of the main causes of chemoresistance).

Jun 10th, 2021

A new fabrication route for blackbody-sensitive room-temperature infrared photodetectors

photodetector-imageRelying on the quantum confinement effect, the strong light-matter interaction in low-dimensional materials enables them to exhibit excellent photodetection. The unique out-of-plane van der Waals force in low-dimensional layered materials makes them free from the surface dangling bonds compared to traditional bulk materials, which reduces the dark current of the devices by eliminating surface recombination. These unique advantages make low-dimensional materials have the potential to achieve breakthroughs in the field of low-cost high-performance room-temperature infrared detection.

Jun 7th, 2021

Nanophotonics and nanofabrication combine to achieve 3D color prints

color-spotsWith a new approach, that brings us closer to the commercial application of 3D color holograms, scientists have developed the concept of a virtual 3D color object consisting of colorful focal spots at discrete heights in the out-of-plane dimension above the surface of a print - something they dubbed 'optical fireworks'. Unlike previous 3D color holograms, this color-filtering microlens-based displays realize multicolor and multifocal simultaneously in the form of bright colorful focal spots floating above the prints.

Jun 2nd, 2021

High-performance biolubricants made from corn starch

phytoglycogen-nanoparticleNature has developed excellent biolubricating systems but onnce biolubrication for instance of synovial joints of osteoarthritis patients breaks down, relief has to come from partially or fully synthetic biolubricants - such as polymeric micro- or nanoparticle-based lubricants - that replace the depleted natural substances. Researchers have now demonstrated that phytoglycogen nanoparticles - single-molecule highly branched polysaccharides extracted from sweet corn kernels - are a highly effective biolubricating material.

May 25th, 2021

The latest nanotechnology advances for agriculture

agricultureNanotechnology is a promising technological advancement that can revolutionize agriculture and food production systems, but the technology must be thoroughly researched before being implemented. Nanobiosensors, nanofertilizers, and nanopesticides have the potential to significantly change the agricultural world. Nanotechnology research related to agriculture is still in its early stages, meaning these new products are not ready to be put on shelves. In particular, toxicity of nanoparticles is a serious concern because it can affect the plants, the soil, and the farmers.

May 24th, 2021

For nanomedicine, sex matters

sex-chromosomesWhen experimental biomedical research results using only one sex are extrapolated to both sexes, unintended harmful consequences to the neglected sex can be the result. Nevertheless, it is still the case that only a small number of published articles report the sex of biosystems used in their study. Many researchers are still using only one sex of biosystems - e.g., cells, tissues, or animals - and apply the results to both males and females. And with the emergence of nanomedicine, the importance of sex in biomedical research has become even more obvious.

May 20th, 2021