Showing Spotlights 9 - 16 of 154 in category General Nanotechnology (newest first):
Though nanotechnology is portrayed as a fairly recent human invention, nature is actually full of nanoscopic architectures. They underpin the essential functions of a variety of life forms, from bacteria to berries, wasps to whales. In fact, tactful use of the principles of nanoscience can be traced to natural structures that are over 500m-years-old. Below are just five sources of inspiration that scientists could use to create the next generation of human technology.
Aug 13th, 2018
By combining advanced high-precision electron microscopy and computational methods, researchers have shed new light on the role of strain in nanoparticle catalysis. Catalytic metal nanoparticles supported on oxide substrates are used on a large scale in technological applications such as production of chemicals, abatement of air pollution and sustainable energy systems. The overall performance and durability of these systems is influenced by a range of factors, and every improvement could result in noticeable environmental and economic benefits.
Jul 31st, 2018
Topological superconductivity is an interesting state of matter, partly because it is associated with quasiparticle excitations, which are Majorana fermions, i.e. particles that are their own antiparticles, obeying non-Abelian statistics and therefore being of prime interest for topological quantum computing. A well-known example are chiral superconductors with px±ipy-wave pairing of electrons into a condensate of Cooper pairs, the carriers of superconductivity. Researchers suggest to consider mesoscopic samples, confined to the energetically favorable domain size, as a suitable platform to verify and potentially control the chiral domains.
Dec 27th, 2017
Neural interfaces establish direct communication between the central nervous system (CNS) and a sovereign, man-made digital system. This technology is perhaps the most important advance in the study and treatment of the brain is the development of the neural interface. Nanotechnology fabrication methods can overcome the limitations of existing interface devices by producing electrodes with an extremely high surface to volume ratio, i.e., more probe units within the same volume, resulting in unprecedented specificity.
Jul 26th, 2017
Chiral metamaterials with strong chiroptical properties are an interesting new platform for optical signal modulation. Although plasmonic super chiral fields have been successfully applied to detect the chiral structures of proteins, it has remained challenging to detect the structural handedness of drug molecules due to their small size and thinner film adsorbed on the surface of metamaterials. Researchers now have reported a new type of plasmonic chiral metamaterial by stacking two layers of identical achiral gold nanohole arrays into moire patterns.
Jul 25th, 2017
In addition to economic, social and political measures, new technologies can provide tools for poverty reduction. Many people in developing countries don't just lack money. Especially in remote regions, many also lack access to electricity, clean drinking water and basic sanitation, cooking facilities, healthcare, adequate housing, etc. The innovative solutions for developing countries supported by the use of nanotechnologies mainly target five areas: water; medicine; agriculture; food; and energy.
Jul 13th, 2017
New work demonstrates that one of the most important security primitives, i.e. a true random number generator (TRNG), can be realized within the rigorous constraints required for future Internet-of-Things electronics. The solution-processability of semiconducting single-walled carbon nanotubes allows to meet these strict constraints by simultaneously enabling small-scale, low cost fabrication of low-power, ultra-thin, printable, and mechanically flexible security devices. This presents a significant milestone in enabling higher level cryptographic solutions using scalable solution processing.
Jul 12th, 2017
The robustness, accuracy, and validity of an atomistic simulations hinge on the appropriate choice of force fields. Force fields are key for modeling the interaction between atoms of a matter under study, and the challenge is to have an accurate force field working for any specific material at any desired temperature. To serve this objective and make a benchmark as well as a shortcut for users to find their best force fields, scientists have examined a number of force fields for materials that are popular in micro- and nanotechnologies.
Jun 12th, 2017