Showing Spotlights 33 - 40 of 2415 in category All (newest first):
Wearable thermal insulation materials for harsh environments always require a compromise during their design and manufacturing. On one hand they need to be mechanically tough to provide impact resistance. On the other hand they need to be heat resistant. Now, researchers have developed a wearable aramid/ceramic aerogel nanocomposite material with both excellent mechanical and thermal properties. The key to this fabrication method is the in situ crosslinking that takes place between the silica pre-ceramic aerogel precursor and the Kevlar fibers.
Nov 30th, 2020
One of the issues with microfluidic devices in life sciences is that most platforms rely on materials or chemicals that are outside the biological breadth as building blocks, scaffolds, or coatings for the devices. In a game-changing approach, researchers are developing a transformative way to fabricate microfluidic devices, where solid walls are replaced by transparent, morphing fluid walls using only biocompatible materials. This novel method can generate cell-friendly microfluidic devices on demand with features below 50 microns in size.
Nov 19th, 2020
Researchers have developed a theory of piezoelectrics with the goal to increase coherence times in quantum computers. In new work, they elucidate the mechanism of energy absorption taking place in quantum computers, and recommends optimal materials for these devices. The new theory predicts qubit coherence times that are over 100 times greater than the current state of the art. This shows that material improvements can go a long way towards improving the quality of quantum computing devices, bringing quantum advantage one step closer.
Nov 18th, 2020
The industrial production of ammonia mostly relies on the energy-intensive Haber-Bosch process, which causes significant environmental pollution. Researchers have now proposed that a class of 2D transition metal borides termed MBenes - the boron-analogues of MXenes - could be used as catalyst for ammonia production through electrochemical nitrogen reduction reaction (NRR). This work also provides a general design principle for further exploration of an even broader composition space of MBenes and other 2D NRR electrocatalysts.
Nov 17th, 2020
Generally it is believed that core quantum dots (QDs) are good reducing agents and are used for that purpose in solar hydrogen generation and various organic transformations. However, core QDs are very unstable. Core/shell dots are more robust, but the shell minimizes redox activity. Researchers now demonstrate that this isn't perfectly true. In fact, they found that certain core/shell materials are a better reducing agent than the core alone. Most importantly, core/shell QDs are substantially more robust than the core alone.
Nov 13th, 2020
With their ability to resist conventional chemotherapy drugs, cancer stem cells (CSC) are really difficult to kill, and they are considered to be key drivers in metastasis, the spread of cancer via the blood stream. If the frequency of CSCs could be diminished, tumors would be rendered less aggressive and more responsive to conventional therapy. This approach is known as differentiation therapy and has considerable therapeutic potential. Scientists now report an approach capable of efficient differentiation of CSCs into non-CSC phenotypes.
Nov 10th, 2020
With over 200 COVID-19 vaccine trials currently underway globally, nanotechnology is being pivoted for COVID-19 applications. Nanoparticles and viruses operate on the same scale, and thus there are various nanotechnological aides which are being used in the development of potential vaccines. Nanoparticles are capable of entering the cell through biological channels, and can deliver antigens there. Besides delivering antigens themselves, nanoparticles can also be enlisted to provide adjuvants to cells.
Nov 9th, 2020
In order to make dynamic written content, for instance a news reader, available for blind or vision-impaired people, scientists have come up with various designs of sheet-type, refreshable Braille displays. Expanding the use of nanotechnologies in designing next-generation Braille readers, researchers now have successfully demonstrated a refreshable Braille display system by using a safe high-voltage power source - a triboelectric nanogenerator.
Nov 5th, 2020