VIII Seminario Internacional de Nanotecnologia, Sociedade e Meio Ambiente.Inscricoes abaixo.http://www.metodistadosul.edu.br/inscricao/inscricao.php?curso=2104&inscricao=439Bom evento This is an excellent Brazilian blog.http://nanociencianoensinobasico.blogspot.com/ Nanoscience refers to the science and manipulation of chemical and biological structures with dimensions in the range from 1-100 nanometers. Nanoscience building blocks may consist of anywhere from a few hundred atoms to millions of atoms. On this scale, new properties (electrical, mechanical, optical, chemical, and biological) that are fundamentally different from bulk or molecular properties can emerge. Nanoscience is about creating new chemical and biological nanostructures, uncovering and understanding their novel properties, and ultimately about learning how to organize these new nanostructures into larger and more complex functional structures and devices. Nanoscience is a new way of thinking about building up complex materials and devices by exquisite control of the functionality of matter and its assembly at the nanometer-length scale. Nanoscience inherently bridges disciplinary boundaries. The "nano" length scale requires the involvement of chemical concepts at the atomic and molecular level. Devices and other functional structures engineered at the nano-scale often use light or electrical signals either to interact with the macroscopic world, or because the devices are designed to process information, with photons or electrons. The vision of nanoscience ultimately combines the science and engineering of man-made and biological entities, controlled at the nanometer scale, and assembled into complex, engineered structures that can interact with their surroundings at dimensions ranging from that of molecules to that of humans and beyond.From:http://www.mit.edu/~chemistry/faculty/nanoscience.html http://www.aspbs.com/jnn/ NANOTECHNOLOGY INTRODUCTIONFrom: http://www.nanotech-now.com/nanotechnology-glossary-M-O.htm#nanoscaleWhat is Nanotechnology?Last Updated: Thursday, 28-Jul-2011 21:19:00 PDTThe term "nanotechnology" has evolved over the years via terminology drift to mean "anything smaller than microtechnology," such as nano powders, and other things that are nanoscale in size, but not referring tomechanisms that have been purposefully built from nanoscale components. See our "Current Uses" page for examples. This evolved version of the term is more properly labeled "nanoscale bulk technology," while the original meaning is now more properly labeled "molecular nanotechnology" (MNT), or "nanoscale engineering," or "molecular mechanics," or "molecular machine systems," or "molecular manufacturing." Recently, the Foresight Institute has suggested an alternate term to represent the original meaning of nanotechnology: zettatechnology.At the most basic technical level, MNT is building, with intent and design, and molecule by molecule, these two things: 1) incredibly advanced and extremely capable nano-scale and micro-scale machines and computers, and 2) ordinary size objects, using other incredibly small machines called assemblers or fabricators (found inside nanofactories). In a nutshell, by taking advantage of quantum-level properties, MNT allows for unprecedented control of the material world, at the nanoscale, providing the means by which systems and materials can be built with exacting specifications and characteristics. Or, as Dr. K. Eric Drexler puts it "large-scale mechanosynthesis based on positional control of chemically reactive molecules."MNT represents the state of the art in advances in biology, chemistry, physics, engineering, computer science and mathematics. The major research objectives in MNT are the design, modeling, and fabrication of molecular machines and molecular devices. The emergence of MNT - both infant and mature - has numerous social, legal, cultural, ethical, religious, philosophical and political implications.At the