http://nanobillboard.com NanoBillboard.com Tue, 18 Jan 2011 20:43:33 +0000 http://backend.userland.com/rss092 en Scientists at Cedars-Sinai's Maxine Dunitz Neurosurgical Institute found that a specific protein called laminin-411 plays a major role in the ability of an aggressive type of brain tumor, glioblastoma multiforme, build new blood vessels to support its growth and spread. Employing nanoparticles as a drug delivery agent, the research team ... http://nanobillboard.com/2551/nanoparticle-targets-brain-tumors/ This paper reports a one-step green synthesis of gold nanoparticles (G-AuNps), using naturally occurring Korean red ginseng root (Panax ginseng C.A. Meyer) and investigates their in vitro stability in various buffers as well as determining toxicity through detailed cytotoxicity assays using WST-8 counting kit, performed on normal cervical cells lines.Colloids ... http://nanobillboard.com/2550/in-situ-green-synthesis-of-biocompatible-ginseng-capped-gold-nanoparticles-with-remarkable-stability/ Ask a random person on the street to name his or her five favorite scientists, chances are you would hear a litany of familiar names--perhaps Marie Curie, Albert Einstein or Louis Pasteur--all of them instrumental in casting the world in which we live. Much less likely would be a recital ... http://nanobillboard.com/2549/the-dean-of-invention-segway-mastermind-probes-sci-techs-future-video/ Imagine a hole so small that air can't go through it, or a hole so small it can trap a single wavelength of light. Nanotech Security Corp., with the help of Simon Fraser University researchers, is using this type of nanotechnology to create unique anti-counterfeiting security features. Nanowerk Nanotechnology News http://nanobillboard.com/2548/butterfly-wings-behind-anti-counterfeiting-nanotechnology/ A new PEN report provides the first ever analysis of voluntary initiatives to regulate nanotechnology. As nanotechnologies move forward, along with other emerging technologies, voluntary programs will play an important role in the governance portfolio available to the federal government as well as states and municipalities. Nanotechnology RSS Feed from the ... http://nanobillboard.com/2547/voluntary-initiatives-regulation-and-nanotechnology-oversight/ It's common knowledge that the U.S. no longer produces enough scientists and engineers to keep pace with the rest of the world. Now, the organizers of the USA Science & Engineering Festival are doing something about it, with a two-week, nationwide extravaganza for left-brain-leaning young ... http://nanobillboard.com/2546/u-s-science-engineering-festival-culminates-this-weekend-on-the-national-mall/ This study describes the preparation of chitosan-coated tea polyphenols nanoparticles (CS-TP NPs) by ionic gelation method using carboxymethyl chitosan and chitosan hydrochloride as carriers of tea polyphenols and investigates the antitumor of CS-TP NPs towards HepG2 cancer cells.Colloids and Surfaces B: Biointerfaces, 82(2): 297-301 (February 2011) International Council on Nanotechnology, ... http://nanobillboard.com/2545/synthesis-characterization-and-cytotoxicity-studies-of-chitosan-coated-tea-polyphenols-nanoparticles/ One morning a few years back Roman Stocker was watching his cat, Cutta Cutta, drink, and began to wonder about the mechanism by which cats lap fluid into their mouths. [More] Scientific American Topic - ... http://nanobillboard.com/2544/cat-lap-engineers-unravel-the-mystery-of-how-felines-drink/ Technology is all around us, expanding the limits of what is possible. but every once in a while, some invention or insight has an outsize effect; it creates a large dis­continuity, dividing history into “before” and “after.” The steam engine, the transistor, the World Wide Web--each of these ideas seemed ... http://nanobillboard.com/2543/world-changing-ideas-2010-preview/ A porous, disk-shaped "nest" for nanotubes may help magnetic resonance imaging become better than ever at finding evidence of cancer if the results of research led by investigators at Rice University are any indication of future success. The researchers, whose work was published in the journal Nature Nanotechnology, have developed ... http://nanobillboard.com/2542/silicon-nested-gadonanotubes-promise-big-advance-for-medical-imaging/