Current Nanoscale News and Events | Page 24

Current Nanoscale News and Events, Nanoscale News Articles.
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Nanoscale probe reveals interactions between surfaces and single molecules
A team of researchers led by Paul Weiss, UCLA's Fred Kavli Chair in NanoSystems Sciences, has developed a tool to study nanoscale interactions. Their device is a dual scanning tunneling and microwave-frequency probe that is capable of measuring the interactions between single molecules and the surfaces to which the molecules are attached. The information provided by the team's probe focuses on what the limits of nanoscale electronics will be, rather than targeting devices for production. (2010-11-17)

Pitt-led team develops nanoscale light sensor compatible with 'Etch-a-Sketch' nanoelectronic platform
Pitt, UW-Madison researchers overcome one of nanotechnology's most daunting challenges by creating a nanoscale light sensor that can be combined with near-atomic-size electronic circuitry to produce hybrid optic and electronic devices, as reported in Nature Photonics. (2010-11-14)

Iowa State, Ames Laboratory scientists advance the understanding of the big getting bigger
Iowa State University and Ames Laboratory scientists are studying a process called coarsening, a branch of surface chemistry that examines how objects of different sizes transform into fewer objects with larger average sizes. James Evans and Patricia Thiel are using scanning tunneling microscope technology to see how coarsening happens on the surface of objects and how it can be enhanced. They describe the emerging field in the Oct. 29 issue of the journal Science. (2010-11-04)

Scientists produce transparent, light-harvesting material
Scientists at the US Department of Energy's Los Alamos National Laboratory and Brookhaven National Laboratory have fabricated transparent thin films capable of absorbing light and generating electric charge over a relatively large area. The material, described in the journal Chemistry of Materials, could be used in development of transparent solar panels. (2010-11-03)

Measuring the electrical properties of nano-crystals
The UK's National Physical Laboratory is working to provide more reliable measurement of the electrical properties of materials used in nanotechnology, which could lead to much more accurate devices in the future. (2010-10-20)

Cheek swab may detect lung cancer
Early detection is critical for improving cancer survival rates. Yet, one of the deadliest cancers in the United States, lung cancer, is notoriously difficult to detect in its early stages. Now, researchers have developed a method to detect lung cancer by merely shining diffuse light on cells swabbed from patients' cheeks. (2010-10-07)

Building a smaller, lighter future: Understanding polymer behaviors below 1 nanometer
Knowing how to build nanosized assemblies of polymers (long molecular chains) holds the key to improving a broad range of industrial processes, from the production of nanofibers, filters and new materials to the manufacture of low-energy, nanoscale circuits and devices. A recent paper in Nature Communications sheds light on key behaviors of polymers in specially engineered confined spaces, opening the door to a level of control that has previously been impossible. (2010-10-05)

Proteins to yield new clues in fight against osteoporosis
A $1.76 million study at Rensselaer Polytechnic Institute seeks to identify new methods of diagnosing osteoporosis and inform the development of next-generation drugs to treat the bone disease. The five-year study, funded by the NIH, is led by Deepak Vashishth, professor and head of the Department of Biomedical Engineering at Rensselaer. Partnering with researchers from Yale University and the Hospital of Special Surgery, Vashishth's will investigate what role two proteins, osteocalcin and osteopontin, play in bone fractures over time. (2010-09-29)

Nanotechnology brings personalized therapy 1 step closer to reality
A novel technology can make nanoscale protein measurements, which scientists can use in clinical trials to learn how drugs work. (2010-09-28)

Solar cells thinner than wavelengths of light hold huge power potential
Ultra-thin solar cells can absorb sunlight more efficiently than the thicker, more expensive-to-make silicon cells used today, because light behaves differently at scales around a nanometer (a billionth of a meter), say Stanford engineers. They calculate that an organic polymer thin film could absorb as much as 10 times more energy from sunlight than was thought possible. (2010-09-27)

Nano antenna concentrates light
Rice researchers have made a nanoscale optical antenna that amplifies light a thousand-fold. Getting an accurate measurement of the plasmonic effect is a first. (2010-09-20)

UCLA's CNSI, Dutch institute sign agreement to collaborate on nanoscience, nanotechnology
Through joint research projects and educational exchanges CNSI and MESA+ will apply nanotechnology to problems of global concern in health and the environment. Special attention will be given to nanoelectronics, medical diagnostic and therapeutic devices, and new materials. Collaborative efforts will be undertaken to commercialize their research, moving it from the lab into the marketplace in order to maximize the economic and social benefits of discoveries and devices. (2010-09-17)

ORNL scientists reveal battery behavior at the nanoscale
As industries and consumers increasingly seek improved battery power sources, cutting-edge microscopy performed at the Department of Energy's Oak Ridge National Laboratory is providing an unprecedented perspective on how lithium-ion batteries function. (2010-09-14)

UCLA, Japanese company to collaborate on specialized nano-imaging instrumentation
Hamamatsu will work with CNSI researchers on efforts to apply nanoscience and nanotechnology to projects having global importance in health, medicine, energy, and the environment. Together they will work on new instruments that advance the field of nanolevel optical imaging. (2010-09-08)

Study shows nano-architectured aluminum has steely strength
A North Carolina State University researcher and colleagues have figured out a way to make an aluminum alloy, or a mixture of aluminum and other elements, just as strong as steel. (2010-09-08)

Microneedle, quantum dot study opens door to new clinical cancer tools
Researchers from North Carolina State University have developed extremely small microneedles that can be used to deliver medically relevant nanoscale dyes called quantum dots into skin -- an advance that opens the door to new techniques for diagnosing and treating a variety of medical conditions, including skin cancer. (2010-08-25)

Good vibrations: New atom-scale products on horizon
The generation of an electric field by the compression and expansion of solid materials is known as the piezoelectric effect, and it has a wide range of applications ranging from everyday items such as watches, motion sensors and precise positioning systems. Researchers at McGill University's Department of Chemistry have now discovered how to control this effect in nanoscale semiconductors called (2010-08-23)

ORNL scientists help explain graphene mystery
Nanoscale simulations and theoretical research performed at the US Department of Energy's Oak Ridge National Laboratory are bringing scientists closer to realizing graphene's potential in electronic applications. (2010-08-23)

The nano world of Shrinky Dinks
The magical world of Shrinky Dinks -- an arts and crafts material used by children since the 1970s -- has taken up residence in a Northwestern University laboratory. A team of nanoscientists is using the flexible plastic sheets as the backbone of a new inexpensive way to create, test and mass-produce large-area patterns on the nanoscale. Anyone needing access to these patterns on the cheap could benefit from this method, known as solvent-assisted nanoscale embossing. (2010-08-13)

New nanoscale transistors allow sensitive probing inside cells
Chemists and engineers at Harvard University have fashioned nanowires into a new type of V-shaped transistor small enough to be used for sensitive probing of the interior of cells. The new device is smaller than many viruses and about one-hundredth the width of the probes now used to take cellular measurements, which can be nearly as large as the cells themselves. (2010-08-12)

Award-winning supercomputer application solves superconductor puzzle
Superconducting materials, which transmit power resistance-free, are found to perform optimally when high- and low-charge density varies on the nanoscale level, according to research performed at the US Department of Energy's Oak Ridge National Laboratory. (2010-08-09)

Turning down the noise in graphene
Working with the unique nanoscience capabilities of Berkeley Lab's Molecular Foundry, a multi-institutional team of researchers has developed the first model of signal-to-noise-ratios for low frequency noises in graphene on silica. Their results show noise patterns that run just the opposite of noise patterns in other electronic materials. (2010-08-06)

NIST nanofluidic 'multi-tool' separates and sizes nanoparticles
NIST researchers have engineered a nanoscale fluidic device that functions as a miniature (2010-08-04)

Nano's brightest coming to Rice
Registration is open for Year of Nano events to be held Oct. 10-13 in honor of the 25th anniversary of the Nobel Prize-winning discovery of the carbon 60 molecule, the buckminsterfullerene, at Rice. (2010-07-29)

Decontaminating dangerous drywall
A nanomaterial originally developed to fight toxic waste is now helping reduce debilitating fumes in homes with corrosive drywall. (2010-07-29)

Nanotechnology for water purification
Writing in the International Journal of Nuclear Desalination, researchers at the D.J. Sanghvi College of Engineering, in Mumbai, India, explain that there are several nanotechnology approaches to water purification currently being investigated and some already in use. (2010-07-28)

Cheaper substrates made of oxide materials
Imagine building cheaper electronics on a variety of substrates -- materials like plastic, paper or fabric. Researchers at Taiwan's National Chiao Tung University have made a discovery that opens this door, allowing them to build electronic components like diodes on many different substrates. (2010-07-27)

Fly eye paves the way for manufacturing biomimetic surfaces
Rows of tiny raised blowfly corneas may be the key to easy manufacturing of biomimetic surfaces, surfaces that mimic the properties of biological tissues, according to a team of Penn State researchers. (2010-07-27)

By 'putting a ring on it,' microparticles can be captured
To trap and hold tiny microparticles, engineers at Harvard have (2010-07-20)

Polymer synthesis could aid future electronics
Tomorrow's television and computer screens could be brighter, clearer and more energy-efficient as a result of a process developed by a team of researchers from Canada and the US Department of Energy's Oak Ridge National Laboratory. (2010-07-19)

National Nanotechnology Initiative's strategic planning stakeholder workshop
The NNI will host the Strategic Planning Stakeholder Workshop at the Hotel Palomar in Arlington, Va., on July 13-14, 2010. The goal of this workshop is to obtain input from stakeholders regarding the goals and objectives for an updated NNI Strategic Plan that is currently under development and scheduled for completion by December 2010. (2010-07-07)

With magnetic nanoparticles, scientists remotely control neurons and animal behavior
Clusters of heated, magnetic nanoparticles targeted to cell membranes can remotely control ion channels, neurons and even animal behavior, according to a paper published by University at Buffalo physicists in Nature Nanotechnology. (2010-07-06)

Study measures single-molecule machines in action
A multidisciplinary team of researchers from UCLA, UC Merced, the Pennsylvania State University, Northwestern University and Japan have observed single-molecule interactions of rotaxanes functioning in their native environment. The team, in research published in the journal ACS Nano, developed a molecular design that firmly attached rotaxanes to a surface, enabling them to be individually examined in their native environment by a scanning tunneling microscope. (2010-07-06)

Nano-sized light mill drives micro-sized disk
Berkeley Lab researchers have created a nano-sized light mill motor powerful enough to drive micro-sized disks. With rotational speed and direction controlled by the frequency of incident light waves, this new nanomotor should open the door to a broad range of applications in energy and biology as well as in nanoelectromechanical systems. (2010-07-06)

UM scientists advance in quantum computing and energy conversion tech
Using a unique hybrid nanostructure, University of Maryland researchers have shown a new type of light-matter interaction and also demonstrated the first full quantum control of qubit spin within very tiny colloidal nanostructures (a few nanometers), thus taking a key step forward in efforts to create a quantum computer. (2010-07-02)

Nanoparticle scientist speaks on new discoveries at Goldschmidt Conference
Scientists make discoveries on the thermodynamic properties of transition metal oxides such as insulators and superconductors. (2010-06-16)

Gold nanoparticles create visible-light catalysis in nanowires
A scientist at the US Department of Energy's Argonne National Laboratory has created visible-light catalysis, using silver chloride nanowires decorated with gold nanoparticles, that may decompose organic molecules in polluted water. (2010-06-15)

Scientists strive to replace silicon with graphene on nanocircuitry
Scientists have made a breakthrough toward creating nanocircuitry on graphene, widely regarded as the most promising candidate to replace silicon as the building block of transistors. They have devised a simple and quick one-step process for creating nanowires, tuning the electronic properties of reduced graphene oxide and thereby allowing it to switch from being an insulating material to a conducting material. (2010-06-10)

Stretching single molecules allows precision studies of interacting electrons
With controlled stretching of molecules, Cornell researchers have demonstrated that single-molecule devices can serve as powerful new tools for fundamental science experiments. Their work has resulted in detailed tests of long-existing theories on how electrons interact at the nanoscale. (2010-06-10)

Liposome-hydrogel hybrids: No toil, no trouble for stronger bubbles
Researchers at NIST, the University of Maryland and the US Food and Drug Administration have developed a method to combine liposomes and particles of hydrogel in a hybrid nanoscale particle that may one day travel directly to specific cells such as tumors, pass easily though the target's cell membrane, and then slowly release a drug payload. (2010-06-09)

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