Vanderbilt researchers have removed an obstacle that has restricted fluorescent nanotubes from a variety of medical applications. In a paper published online in the Journal of the American Chemical Society they describe a method that can successfully produce large batches of highly fluorescent nanotubes.
Researchers at Rensselaer Polytechnic Institute have developed a new method of compacting carbon nanotubes into dense bundles. These tightly packed bundles are efficient conductors and could one day replace copper as the primary interconnects used on computer chips and even hasten the transition to next-generation 3-D stacked chips.
A team of Iowa State scientists is the first to successfully use nanotechnology to penetrate plant cells, simultaneously delivering a gene and a chemical to activate it. The breakthrough creates a powerful new tool that could transform plant biotechnology. It was a highlighted article in May's Nature Nanotechnology.
You are invited to the Journalist Workshop in Nanotechnology, June 13, 2007, hosted by the Kavli Institute at Cornell for Nanoscale Science. (Space is limited and the deadline for registration is May 30. Journalists are encouraged to register now. If the workshop is filled, a waiting list will be created.)
In efforts that can improve studies of biological objects and the construction of nanotech materials, researchers at the University of California-Berkeley have invented "optoelectronic tweezers," a new way of controlling nanometer-scale objects. The research will be presented at the upcoming CLEO/QELS meeting in Baltimore.
A Georgia Tech research team has discovered that water exhibits very different properties when it is confined to channels less than two nanometers wide "“ behaving much like a viscous fluid with a viscosity approaching that of molasses. Determining the properties of water on the nanoscale may prove important for biological and pharmaceutical research as well as nanotechnology.
Researchers have discovered a better way to deliver drugs to tumors. By using a cylindrical-shaped carrier they were able sustain delivery of the anticancer drug paclitaxel to an animal model of lung cancer ten times longer than that delivered on spherical-shaped carriers.
Researchers have demonstrated a prototype nanometer-scale generator that produces continuous direct-current electricity by harvesting mechanical energy from such environmental sources as ultrasonic waves, mechanical vibration or blood flow.
The Nanotechnology and Society Research Group (NSRG) at Northeastern University is hosting a day long "short course" where Northeastern nanoscience researchers will join experts from around the nation to explain the basic science, emerging applications, and societal impacts of nanotechnology to an audience comprised of social science and law researchers, journalists, and public sector officials.
Cornell University researchers have come up with a simple, inexpensive way to measure the vibration of nanomechanical oscillators by 'tapping' with an atomic force microscope.
Gene therapy - the idea of using genetic instructions rather than drugs to treat disease - faces a sizeable hurdle in getting the right genes into the right place at the right time. University of Wisconsin-Madison engineers are developing a tool to tackle this problem.
The size, type, and dispersion of nanomaterials could all play a role in how these materials impact human health and the environment, according to two groups of researchers at Rensselaer Polytechnic Institute. In new studies, the teams found that while carbon nanotubes inhibited growth in mammalian cells, they sustained the growth of commonly occurring bacteria.
Nanotechnology may unlock the secret for creating highly efficient next-generation LED lighting systems, and exploring its potential is the aim of several projects centered at Oak Ridge National Laboratory.
Researchers at the University of Arkansas have fabricated and tested a novel biosensor that detects glucose close to real time and with much greater sensitivity than other comparable, biocompatible sensors.
By fusing wet and dry nanotechnologies, researchers at Rensselaer Polytechnic Institute have found a way to control the flow of water through carbon nanotube membranes with an unprecedented level of precision. The research could inspire technologies designed to transform salt water into pure drinking water almost instantly, or to immediately separate a specific strand of DNA from the biological jumble.
The object of fascination for most is the DNA molecule. But in solution, DNA, the genetic material that hold the detailed instructions for virtually all life, is a twisted knot, looking more like a battered ball of yarn than the famous double helix. To study it, scientists generally are forced to work with collections of molecules floating in solution, and there is no easy way to precisely single out individual molecules for study.
Bigger may be better, but tinier is stronger. So say scientists at the Technion-Israel Institute of Technology, who have shown that tiny polymer nanofibers become much stronger when their diameters shrink below a certain size. Their research could make possible stronger fabrics that use less material.
University of Florida engineering student Maria Palazuelos is working on nanotechnology, but she's not seeking a better sunscreen, tougher golf club or other product "” the focus of many engineers in the field.
The layers of mucus that protect sensitive tissue throughout the body have an undesirable side effect: they can also keep helpful medications away. To overcome this hurdle, researchers have found a way to coat nanoparticles with a chemical that helps them slip through this sticky barrier.
Laboratory experiments with a type of nanomaterial that has great promise for industrial use show significant potential for dispersal in aquatic environments -- especially when natural organic materials are present, according to research led by the Georgia Institute of Technology.
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