Showing Spotlights 1401 - 1408 of 1460 in category All (newest first):
Humidity sensing by glass-ceramic nanocomposites containing silver
Humidity is a measure of the moisture content of an environment. Control of humidity is thus essential for maintaining the desired level of moisture in an enclosure be it in a hospital or in a semiconductor-processing unit or in a laboratory. For humidity control an efficient sensor is an absolute necessity.
A new nanofabrication method to make polymer microlenses
Researchers in Israel demonstrated a new technique for creating polymer microlenses. While current processes employed for manufacturing large microlens arrays are not compatible with the need to place single microlenses in very precise, strategic locations (such as an intersection of two nanochannels, for example) the Israeli group's method is specifically designed to do so. They deposit small drops of monomer solution with a nanopipette, mounted as an AFM probe (nano fountain pen, or NFP), and subsequently polymerize them, to yield microlenses. Their technique could ultimately lead to nano-biochips with integrated polymer optics.
Converting carbon nanotubes into diamonds
Carbon nanotubes have been converted to diamonds before but a group of researchers in the PR China and the UK now managed to do this at a very low pressure of only 80 megapascal.
Fungus as bionanofactory for synthesis of silver nanoparticles
Researchers in India have demonstrated a reliable and eco-friendly biological process for synthesis of silver nanoparticles.
Magnetite-labeled carbon nanohorns as low-toxicity MRI agents
Notwithstanding all the recent publicity about the presumed or actual toxicity of nanomaterials, the detailed pharmacological knowledge of any nanomaterial is important in order to assess its level of toxicity in the living body. While in vivo toxicity assessment of carbon nanotubes (CNTs) is still at the early stage, research in this area is well underway.
A practical method for the production of hollow carbon onion nanoparticles
Carbon onions, which are made of concentric graphene spherical shells, are a potential solid lubricant similar to Tungstenite (WS2) nanoparticles having an onion-like structure. In addition, carbon onion nanoparticles are expected to have good prospects for other applications, such as the reinforcement of composite materials, magnetic storage media and wear-resistant materials.
Thermolithography: Nanomanufacturing under heat
Lithography is a critical enabling technology for manufacturing nanoscale devices and structures. Suppose nanolithography tools cost just a few thousand dollars a piece instead of a few million dollars. These cheap tools would wide open the fields of nanotechnology to practically every university and industry researcher interested in the field.
Nanowerk interview with Ted Sargent
Nanowerk spoke with Professor Ted Sargent, professor and Canada Research Chair in Nanotechnology at the University of Toronto and author of the recently published and highly acclaimed book The Dance of the Molecules.