Nanotech

Nanomaterials  are often categorized  based on number of dimensions of a material, which are outside the nanoscale (<100 nm) range. Accordingly, in  one-dimensional nanomaterials (1D), one dimension is outside the nanoscale. This class includes  nanofibers, nanotubes, nanorods, and nanowires. 1D materials are generally considered to be high‐capacity and stable electrode materials, due …

The purpose of a biosensor is the detection of biologically-relevant targets such as proteins, DNA, pathogens, cells, bacteria, pollutants, hormones and enzymes. In most cases, their presence and/or concentration in samples such as blood, urine, saliva, sweat or tears can be an early indicator of disease, so that the sensor …

“Invisibility” is a goal that has been long sought after by the  Militaries. An operational cloaking chip could be an extension of technologies such as radar-absorbing dark paint used on stealth aircraft, local optical camouflage, surface cooling to minimize electromagnetic IR emissions, or electromagnetic wave scattering. Metamaterials are the primary materials  …

Atomic clusters, consisting of a few to a few thousand atoms, have emerged over the past 40 years as the ultimate nanoparticles, whose structure and properties can be controlled one atom at a time. More importantly, the possibility of creating a new class of materials, composed of clusters instead of …

DARPA has launched a new surveillance program which plans to use genetically engineered plant as battlefield surveillance sensors. DARPA’s new Advanced Plant Technologies (APT) program looks to seemingly simple plants as the next generation of intelligence gatherers. Traditional sensors are not always optimal for  obtaining timely, accurate information as national security …

A nanofiber is a fiber with a diameter of 100 nanometers or less. The nanofibers due to some special properties  are being investigated for a myriad of potential applications in the fields of medicine, electronics and other material sciences. Such fibers have a high ratio of surface area to volume. …

Because of higher density chips, the design of more compact electronic components makes heat dissipation even more difficult. All advanced electrical or electronic devices are facing heat management challenges due to the increased levels of heat generation and the reduction in the surface area for heat rejection or dissipation. So …