The new nanocarriers are just 15 nanometers in diameter, based on building blocks called amphiphilic polymers: they have both hydrophilic (water-loving, polar) and lipophilic (fat-loving) properties). That allows the nanocarriers to hold the… read more
July 5, 2013
The research effort, pursued under a new $3.3 million grant from the National Institute of Drug Abuse, will attempt to design a vaccine conferring immunity to nicotine, using nanoscale structures assembled from DNA.… read more
March 17, 2008
An international team of researchers has built a nanoscale biosensor that detects food-borne bacteria.
The biosensor has a mix of gold and silver nanorods with antibodies to capture Salmonella bacteria. The Salmonella bacteria then cause the dye molecules to produce an enhanced fluorescence signal, even with a small number of bacteria present.
Food-borne pathogens cause approximately 76 million illnesses, 325,000 hospitalizations, and 5,000 deaths in the United States… read more
December 22, 2011
An endoscope that can provide high-resolution optical images of the interior of a single living cell, or precisely deliver genes, proteins, therapeutic drugs or other cargo without injuring or damaging the cell, has been developed by researchers from Berkeley Lab and the University of California (UC) Berkeley.
The researchers attached a tin-oxide nanowire waveguide to the tapered end of an optical fiber to create a novel endoscope system. Light… read more
October 19, 2004
Brookhaven National Laboratory researchers have discovered that a short organic chain molecule with nanometer dimensions conducts electrons in a surprising way: it regulates the electrons’ speed erratically, without a predictable dependence on the length of the wire.
In research on oligophenyleneethynylene (OPE) nanowires, researchers found that as they increased the length of the OPE wire from one to four PE units, the electrons moved across the wire faster, slower,… read more
December 13, 2003
Picture, if you will, an information infrastructure that encourages censorship, surveillance and suppression of the creative impulse. Where anonymity is outlawed and every penny spent is accounted for. Where the powers that be can smother subversive (or economically competitive) ideas in the cradle, and no one can publish even a laundry list without the imprimatur of Big Brother. Some prognosticators are saying that such a construct is nearly inevitable. And… read more
July 11, 2014
The Defense Advanced Research Projects Agency (DARPA) has awarded Lawrence Livermore National Laboratory (LLNL) up to $2.5 million to develop an implantable neural device with the ability to record and stimulate neurons within the brain to help restore memory.
DARPA’s interest is in traumatic brain injury (TBI), which disrupts memory. DARPA says TBI has affected 270,000 military service members since 2000. It could also help… read more
March 15, 2016
Duke University scientists have developed a “neurofeedback” technique to improve self motivation by manipulating specific neural circuits using thoughts and imagery. (Neurofeedback is a specialized form of biofeedback that can help generate strategies to overcome anxiety and stress or to cope with other medical conditions.)
“These methods show a direct route for manipulating brain networks centrally involved in healthy brain function and daily behavior,” said the study’s… read more
April 22, 2014
Electrical engineers at the Georgia Institute of Technology have published a roadmap that details innovative analog-based techniques that they believe could make it possible to build a practical neuromorphic (brain-inspired) computer while minimizing energy requirements.
“A configurable analog-digital system can be expected to have a power efficiency improvement of up to 10,000 times compared to an all-digital system,” said Jennifer Hasler, a professor in the Georgia… read more
December 20, 2013
Researchers have discovered a cause of aging in mammals that may be reversible: a series of molecular events that enable communication inside cells between the nucleus and mitochondria.
As communication breaks down, aging accelerates. By administering a molecule naturally produced by the human body, scientists restored the communication network in older mice. Subsequent tissue samples showed key biological hallmarks that were comparable to those of much younger animals.… read more
November 4, 2015
Northeastern University engineers have developed a 3-D printing process that uses magnetic fields to shape composite materials (mixes of plastics and ceramics) into patient-specific biomedical devices, such as catheters.
The devices are intended to be stronger and lighter than current models and the customized design could ensure an appropriate fit, said Randall Erb, assistant professor in the Department of Mechanical and Industrial Engineering.
The magnetic field… read more
March 13, 2012
A new imaging technique is giving scientists their first three-dimensional view of the human genome,
The finding, by Erez Lieberman Aiden, a Junior Fellow of the Society of Fellows, working with Nynke van Berkum, Louise Williams, and a team of researchers from the Broad Institute of Harvard and MIT and the University of Massachusetts Medical School, suggests that how DNA is packed into cells may be at least… read more
March 6, 2008
University of Michigan researchers have developed nanoemulsion vaccines–made up of tiny soybean oil droplets suspended in water, studded with bits of pathogenic organisms, and swabbed into the nose–that may be the vaccines of the future.
Previously proved effective against influenza and anthrax, they have now been shown to generate immunity to smallpox and HIV in mice.