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Nanotechnology

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Key: Meeting M      Journal J      Funder F

Showing releases 276-300 out of 1676.

<< < 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 > >>

Public Release: 29-Apr-2014
Environmental Engineering Science
Graphene not all good
In a first-of-its-kind study of how a material some think could transform the electronics industry moves in water, researchers at the University of California, Riverside Bourns College of Engineering found graphene oxide nanoparticles are very mobile in lakes or streams and therefore likely to cause negative environmental impacts if released.
National Science Foundation, US Department of Agriculture

Contact: Sean Nealon
sean.nealon@ucr.edu
951-827-1287
University of California - Riverside

Public Release: 29-Apr-2014
ACS Nano
Brain tumor cells penetrated by tiny, degradable particles carrying genetic instructions
Working together, Johns Hopkins biomedical engineers and neurosurgeons report that they have created tiny, biodegradable 'nanoparticles' able to carry DNA to brain cancer cells in mice. The team says the results of their proof of principle experiment suggest that such particles loaded with 'death genes' might one day be given to brain cancer patients during neurosurgery to selectively kill off any remaining tumor cells without damaging normal brain tissue.
NIH/National Institute of Biomedical Imaging and Bioengineering, NIH/National Cancer Institute, Maryland Stem Cell Research Fund, Technology Development Corporation

Contact: Catherine Kolf
ckolf@jhmi.edu
443-287-2251
Johns Hopkins Medicine

Public Release: 29-Apr-2014
Nature Communications
Graphene only as strong as weakest link
Labs at Rice University and Georgia Tech test the fracture toughness of graphene for the first time by making and measuring 'pre-cracks' under stress.
National Science Foundation, US Office of Naval Research, Korean Institute of Machinery and Materials

Contact: David Ruth
david@rice.edu
713-348-6327
Rice University

Public Release: 29-Apr-2014
Nature Communications
Graphene only as strong as weakest link
Labs at Rice University and Georgia Tech test the fracture toughness of graphene for the first time by making and measuring 'pre-cracks' under stress.
National Science Foundation, Office of Naval Research, Welch Foundation, Korean Institute of Machinery and Materials

Contact: David Ruth
david@rice.edu
713-348-6327
Rice University

Public Release: 29-Apr-2014
Journal of Mathematical Physics
Proving uncertainty: New insight into old problem
Nearly 90 years after Werner Heisenberg pioneered his uncertainty principle, a group of researchers from three countries has provided substantial new insight into this fundamental tenet of quantum physics with the first rigorous formulation supporting the uncertainty principle as Heisenberg envisioned it.

Contact: Jason Socrates Bardi
jbardi@aip.org
240-535-4954
American Institute of Physics

Public Release: 28-Apr-2014
Protecting computer hardware: Three universities tapped for cybersecurity research
The US Department of Defense has awarded a $7.5 million grant to the University of Connecticut, University of Maryland, and Rice University to support research that will analyze and upgrade security protections for nanoscale computer hardware.
Air Force Office of Scientific Research

Contact: Colin Poitras
colin.poitras@uconn.edu
860-486-4656
University of Connecticut

Public Release: 28-Apr-2014
Nature Scientific Reports
A glassy look for manganites
Researchers at Berkeley Lab's Advanced Light Source discovered a glass-like re-ordering of electron-spin states as manganite crystals recovered from a photo-excited conductor state back to an insulator state. The discovery holds promise for future ultrafast electronic switching and memory devices.
US DOE/Office of Science

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory

Public Release: 28-Apr-2014
Proceedings of the National Academy of Sciences
Fluorescent-based tool reveals how medical nanoparticles biodegrade in real time
For nanoparticles to deliver medicines to patients, the tiny structures must safely decompose so they can be cleared from the body after their job is done. Researchers present a unique, noninvasive method to measure that disassembly process.
National Institutes of Health, American Heart Association, others

Contact: John Ascenzi
ascenzi@email.chop.edu
267-426-6055
Children's Hospital of Philadelphia

Public Release: 28-Apr-2014
Journal of American Chemical Society
Flexible battery, no lithium required
A Rice University laboratory has created a thin, flexible film that combines the best qualities of batteries and supercapacitors.
Air Force Office of Scientific Research, Smalley Institute for Nanoscale Science and Technology

Contact: David Ruth
david@rice.edu
713-348-6327
Rice University

Public Release: 28-Apr-2014
Nature Physics
Beyond graphene: Controlling properties of 2-D materials
Researchers at the University of Manchester have shown how they can control the properties of stacks of two-dimensional materials, opening up opportunities for new, previously-unimagined electronic devices.

Contact: Daniel Cochlin
daniel.cochlin@manchester.ac.uk
44-161-275-8382
University of Manchester

Public Release: 28-Apr-2014
Nature Materials
Multilayer, microscale solar cells enable ultrahigh efficiency power generation
A printing approach, developed by John Rogers and colleagues at the University of Illinois, allows manipulation of ultrathin, small semiconductor elements that can be stacked on top of one another to yield an unusual type of solar cell capable of operating across the entire solar spectrum at exceptionally high efficiency.

Contact: John A. Rogers
jrogers@illinois.edu
217-244-4979
University of Illinois College of Engineering

Public Release: 28-Apr-2014
Nature Nanotechnology
How to create nanowires only 3 atoms wide with an electron beam
A Vanderbilt graduate student who is a visiting scientist at Oak Ridge National Laboratory has used a focused beam of electrons to create some of the smallest nanowires ever made. The discovery gives a boost to efforts aimed at creating electrical circuits on mono-layered materials, raising the possibility of flexible, paper-thin tablets and television displays.
US Department of Energy

Contact: David Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University

Public Release: 24-Apr-2014
ACS Nano
Protecting olive oil from counterfeiters
Who guarantees that expensive olive oil isn't counterfeit or adulterated? An invisible label, developed by ETH Zurich researchers, could perform this task. The tag consists of tiny magnetic DNA particles encapsulated in a silica casing and mixed with the oil.

Contact: Robert Grass
robert.grass@chem.ethz.ch
41-446-336-334
ETH Zurich

Public Release: 23-Apr-2014
ACS Nano
Your T-shirt's ringing: Telecommunications in the spaser age
A new version of 'spaser' technology being investigated could mean that mobile phones become so small, efficient, and flexible they could be printed on clothing.

Contact: Glynis Smalley
glynis.smalley@monash.edu
61-408-027-848
Monash University

Public Release: 23-Apr-2014
Nature Nanotechnology
Gold nanoparticles help target, quantify breast cancer segments in a living cell
Purdue University researchers have developed a way to detect and measure cancer levels in a living cell by using tiny gold particles with tails of synthetic DNA.
National Science Foundation, Indiana Clinical Transitional Sciences Institute, Purdue Center for Cancer Research, Samsung

Contact: Natalie van Hoose
nvanhoos@purdue.edu
765-496-2050
Purdue University

Public Release: 23-Apr-2014
Physical Review X
Steering chemical reactions with laser pulses
Ultra short laserpulses in the femtosecond-range give scientists a powerful new method of controlling chemical reactions. A team of researchers could now show that the fragmentation of carbohydrates can be controlled by these pulses.

Contact: Florian Aigner
florian.aigner@tuwien.ac.at
43-158-801-41027
Vienna University of Technology

Public Release: 22-Apr-2014
ACS Applied Materials & Interfaces
Nanoreporters tell 'sour' oil from 'sweet'
Scientists at Rice University have created a nanoscale detector that checks for and reports on the presence and concentration of hydrogen sulfide in crude oil and natural gas while they're still in the ground.
Advanced Energy Consortium

Contact: David Ruth
david@rice.edu
713-348-6327
Rice University

Public Release: 22-Apr-2014
7th International Nanotoxicology Congress
PETA science consortium to present hazard testing strategy at nanotoxicology meeting
PETA International Science Consortium will present a non-animal tiered-testing strategy for nanomaterial hazard assessment at the 7th International Nanotoxicology Congress being held in Antalya, Turkey on April 23-26, 2014. The proposed strategy will generate meaningful information on nanomaterial properties and their interaction with biological systems. It's cost-effective, reduces animal use, and can be applied for assessing risk and making intelligent regulatory decisions regarding the use and disposal of nanomaterials.

Contact: Tasgola Bruner
404-907-4172
People for the Ethical Treatment of Animals

Public Release: 22-Apr-2014
Nano Letters
First size-based chromatography technique for the study of living cells
Using nanodot technology, Berkeley Lab researchers demonstrated the first size-based form of chromatography for studying the membranes of living cells. This unique physical approach to probing cellular membrane structures reveals critical information that can't be obtained through conventional microscopy.
NIH/National Institute of Allergy and Infectious Diseases

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory

Public Release: 22-Apr-2014
APL Materials
Vacuum ultraviolet lamp of the future created in Japan
A team of researchers in Japan has developed a solid-state lamp that emits high-energy ultraviolet (UV) light at the shortest wavelengths ever recorded for such a device, from 140 to 220 nanometers. This is within the range of vacuum-UV light -- so named because while light of that energy can propagate in a vacuum, it is quickly absorbed by oxygen in the air.

Contact: Jason Socrates Bardi
jbardi@aip.org
240-535-4954
American Institute of Physics

Public Release: 22-Apr-2014
ACS Nano
Cloaked DNA nanodevices survive pilot mission
By mimicking a viral strategy, scientists at Harvard's Wyss Institute for Biologically Inspired Engineering have created the first cloaked DNA nanodevice that survives the body's immune defenses. Their success opens the door to smart DNA nanorobots that use logic to spot cancerous tissue and manufacture drugs on the spot to cripple it, as well as artificial microscopic containers called protocells that detect pathogens in food or toxic chemicals in drinking water.

Contact: Dan Ferber
dan.ferber@wyss.harvard.edu
617-432-1547
Wyss Institute for Biologically Inspired Engineering at Harvard

Public Release: 22-Apr-2014
Physical Review Letters
Nanomaterial outsmarts ions
Ions are an essential tool in chip manufacturing, but they can also be used to produce nano-sieves. A large number of electrons must be removed from the atoms for this purpose. Such ions either lose a large amount of energy or almost no energy at all as they pass through a membrane that measures one nanometer in thickness. Researchers report in the journal Physical Review Letters that this discovery is an important step towards developing novel types of electronic components made of graphene.

Contact: Simon Schmitt
s.schmitt@hzdr.de
Helmholtz-Zentrum Dresden-Rossendorf

Public Release: 22-Apr-2014
Nature Materials
Like a hall of mirrors, nanostructures trap photons inside ultrathin solar cells
'We want to make sure light spends more quality time inside a solar cell,' said Mark Brongersma, a professor of materials science and engineering at Stanford. He and two co-authors surveyed 109 scientific papers involving ways to maximize the collisions between photons and electrons in the thinnest possible layer of photovoltaic material. The goal is to reveal trends and best practices that will help lower solar energy costs.

Contact: Tom Abate
tabate@stanford.edu
650-736-2245
Stanford School of Engineering

Public Release: 22-Apr-2014
ACS Nano
RNA shows potential as boiling-resistant anionic polymer material for nanoarchitectures
Nanotechnology researchers at the University of Kentucky have discovered new methods to build boiling-resistant nanostructures and arrays using a new RNA triangle scaffold. These new RNA nanoarchitechtures can be used to form arrays with a controllable repeat number of the scaffold, resembling monomer units in a polymerization reaction. Their enhanced structural stability and controllability at the nano scale offer key advantages over traditional chemical polymers.
NIH/National Institute of Biomedical Imaging and Bioengineering, NIH/National Cancer Institute

Contact: Keith Hautala
keith.hautala@uky.edu
859-323-2396
University of Kentucky

Public Release: 22-Apr-2014
Journal of Applied Physics
High-performance, low-cost ultracapacitors built with graphene and carbon nanotubes
By combining the powers of two single-atom-thick carbon structures, researchers at the George Washington University's Micro-propulsion and Nanotechnology Laboratory have created a new ultracapacitor that is both high performance and low cost. The device, described in the Journal of Applied Physics, capitalizes on the synergy brought by mixing graphene flakes with single-walled carbon nanotubes, two carbon nanostructures with complementary properties.

Contact: Jason Socrates Bardi
jbardi@aip.org
240-535-4954
American Institute of Physics

Showing releases 276-300 out of 1676.

<< < 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 > >>