Scientists at the University of Kentucky, led by nano-biotechnologist Peixuan Guo, have reported the discovery of a new, third class of biomotor, unique in that it uses a "revolution without rotation" mechanism. Recently, Guo's team reported that these revolution biomotors are widespread among many bacteria and viruses.
Nanoscale, biodegradable drug-delivery method could provide a year or more of steady doses.
A research team led by Raymond Tak Fai Cheung, PhD and student Lynn Yan-Hua Sang, PhD of the University of Hong Kong suggests a new therapeutic strategy for intracerebral hemorrhage: injecting self-assembling peptide nanofiber scaffolds (SAPNS) directly into a hemorrhagic lesion.
A team of scientists in Israel and Germany have created robots that are only nanometers in length, small enough to maneuver inside the human body and possibly inside human cells.
Researchers at Dartmouth-Hitchcock Norris Cotton Cancer Center are exploring ways to wake up the immune system so it recognizes and attacks invading cancer cells. One pioneering approach uses nanoparticles to jumpstart the body’s ability to fight tumors
A multi-institutional team of researchers has developed a new nanoscale agent for imaging the gastrointestinal (GI) tract. This safe, noninvasive method for assessing the function and properties of the GI tract in real time could lead to better diagnosis and treatment of gut diseases.
In a landmark paper -- "Designed Synthesis of Large-Pore Crystalline Polyimide Covalent Organic Frameworks” -- published in the July 23 edition of the international scientific journal Nature Communications, University of Delaware researcher Yushan Yan describes a new approach to creating organic zeolites.
By ‘drawing’ micropatterns on nanomaterials using a focused laser beam, scientists could modify properties of nanomaterials for effective applications in photonic and optoelectric applications
A novel method for producing ultra-narrow ribbons of graphene and then tuning the material's electrical properties holds promise for use in nano-devices.
Bacteria love to colonize surfaces inside your body, but they have a hard time getting past your skin. Surgeries to implant medical devices give such bacteria the opportunity needed to gain entry into the body cavity, allowing the implants themselves to act then as an ideal growing surface for biofilms. Researchers are looking to combat these dangerous sub-dermal infections by upgrading your new hip or kneecap in a fashion appreciated since ancient times – adding gold.
The antibacterial properties of silver-coated textiles are popular in the fields of sport and medicine. A team at Empa has now investigated how different silver coatings behave in the washing machine, and they have discovered something important: textiles with nano-coatings release fewer nano-particles into the washing water than those with normal coatings.
Mechanical force -- about the same that raises the numerals on credit cards -- proves to be a much more varied and ecological creator of nanostructures than the current method of choice, chemistry, with its unvarying results and harmful chemical processes.
Sandia researchers have come up with a way to make titanium-dioxide nanoparticles, which have a variety of uses in everything from solar cells to LEDs. Titanium-dioxide nanoparticles show great promise, but industry has largely shunned them in the past because they’ve been difficult and expensive to make.
Physicists at the University of Rochester have created a silicon nanocavity that allows light to be trapped longer than in other similarly-sized optical cavities. An innovative design approach, which mimics evolutionary biology, allowed them to achieve a 10-fold improvement on the performance of previous nanocavities.
Scientists have used DNA-linked nanoparticles to form a single-particle-thick layer on a liquid surface where the properties of the layer can be easily switched. Understanding the assembly of such nanostructured thin films provides a possible pathway to adjustable filters, surfaces with variable mechanical response, or even new ways to deliver genes for biomedical applications.
Researchers at Sandia National Laboratories, along with collaborators from Rice University and the Tokyo Institute of Technology, are developing new terahertz detectors based on carbon nanotubes that could lead to significant improvements in medical imaging, airport passenger screening, food inspection and other applications.
Scientists at New York University and the University of Melbourne have developed a method using DNA origami to turn one-dimensional nano materials into two dimensions. Their breakthrough offers the potential to enhance fiber optics and electronic devices by reducing their size and increasing their speed.
A collaboration from several DOE national labs--Berkeley, Brookhaven, SLAC, and the National Renewable Energy Laboratory--mapped the nanoscale dynamics of lithium-ion charge cycles and discovered never-before-seen evolution and degradation patterns in two key battery materials.
A new type of supercapacitor that can hold a charge when it takes a lickin’ has been developed by engineers at Vanderbilt University. It is the first “multi-functional” energy storage device that can operate while subject to realistic static and dynamic loads – advancing the day when everything from cell phones to electric vehicles will no longer need separate batteries.
RNA carried by new nanoparticles can silence genes in many organs, could be deployed to treat cancer
Nanoparticles that stagger delivery of two drugs knock out aggressive tumors in mice
Nanoengineers at the University of California, San Diego are asking what might be possible if semiconductor materials were flexible and stretchable without sacrificing electronic function?
Bioengineers at the University of Rome Tor Vergata and the University of Montreal have used DNA to develop a tool that detects and reacts to chemical changes caused by cancer cells and that may one day be used to deliver drugs to tumor cells.
An international research team has built molecular “clamps” out of DNA that offer a powerful new tool for identifying individuals with an increased risk of cancer.
Scientists studying graphene’s properties are using a new mathematical framework to make extremely accurate characterizations of the two-dimensional material’s shape.
1) Reducing soot. 2) Hydropower. 3) Understanding driver behavior. 4) A performance record in high-temperature superconducting wires.
Scientists seeking ways to synchronize the magnetic spins in nanoscale devices to build tiny yet more powerful signal-generating or receiving antennas and other electronics have published a study showing that stacked nanoscale magnetic vortices separated by an extremely thin layer of copper can be driven to operate in unison. These devices could potentially produce a powerful signal that could be put to work in a new generation of cell phones, computers, and other applications.
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.
Using principles of energy transfer more commonly applied to designing solar cells, scientists at the U.S. Department of Energy’s Brookhaven National Laboratory have developed a new highly sensitive way to detect specific sequences of DNA, the genetic material unique to every living thing. As described in a paper published in the journal Chemistry of Materials, the method is considerably less costly than other DNA assays and has widespread potential for applications in forensics, medical diagnostics, and the detection of bioterror agents.
Labs at Rice University and Georgia Tech have tested the fracture toughness of graphene for the first time by making and measuring "pre-cracks" under stress. The results show the material to be somewhat brittle.
A unique, noninvasive method measures the disassembly of biodegradable nanoparticles that can be used to deliver medicines to patients. The technique is a necessary stop in translating nanoparticles into clinical use.
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.
An international team of scientists, led by physicists at the University of Arkansas, has tracked the dynamic movement of ripples in freestanding graphene at the atomic level.
By looking at a piece of material in cross section, Washington University in St. Louis engineer Parag Banerjee, PhD, and his team discovered how copper sprouts grass-like nanowires that could one day be made into solar cells.
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.
A new nanomaterial called a metal organic framework could extend the lifespan of lithium-sulfur batteries, which could be used to increase the driving range of electric vehicles.
David Guston, director of the Center for Nanotechnology in Society at ASU, is the founding editor-in-chief of the Journal of Responsible Innovation
Research in the University of Delaware Department of Chemical and Biomolecular Engineering has shown that routine processing can affect the size of nanocarriers for targeted drug delivery. The research is reported in Nature Communications.
Anasys Instruments Corp. has licensed a technology that allows for simultaneous chemical and physical characterization and could lead to advances in materials and drug development.
Assistant Professor Christian A. Nijhuis of the Department of Chemistry at the National University of Singapore’s (NUS) Faculty of Science, in collaboration with researchers from the Agency for Science, Technology and Research (A*STAR), namely Dr Bai Ping of the Institute of High Performance Computing and Dr Michel Bosman of the Institute of Materials Research and Engineering, has successfully designed and fabricated electrical circuits that can operate at hundreds of terahertz frequencies, which is tens of thousands times faster than today’s state-of-the-art microprocessors.
A combined computational and experimental study of self-assembled silver-based structures known as superlattices has revealed an unusual and unexpected behavior: arrays of gear-like molecular-scale machines that rotate in unison when pressure is applied to them.
In a presentation exploring the promise of magnetic nanoparticle (mNP) hyperthermia in breast cancer treatment, Dartmouth researcher P. Jack Hoopes, DMV, PhD, will review preclinical studies conducted at Norris Cotton Cancer Center and discuss plans for early-phase clinical studies in humans at AACR annual meeting on Sunday 4/6/14.
Researchers have developed a small electronic sensing device that can alert users wirelessly to the presence of chemical vapors in the atmosphere. The technology, which could be manufactured using familiar aerosol-jet printing techniques, is aimed at myriad applications in military, commercial, environmental, healthcare and other areas.
Researchers from the University of California, San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences, in collaboration with materials scientists, engineers and neurobiologists, have discovered a new mechanism for using light to activate drug-delivering nanoparticles and other targeted therapeutic substances inside the body.
By harnessing an electropolymerization process to produce aligned arrays of polymer nanofibers, researchers have developed a thermal interface material able to conduct heat 20 times better than the original polymer. The material can operate at up to 200 degrees Celsius.
Lithium-ion batteries power a vast array of modern devices, from cell phones, laptops, and laser pointers to thermometers, hearing aids, and pacemakers. A team of researchers at the University of Delaware has discovered a “sticky” conductive material that may improve them while eliminating the need for toxic solvents.
Scientists at the Center for Nanotechnology and Nanotoxicology at Harvard School of Public Health have discovered a way to measure the effective density of engineered nanoparticles in physiological fluids, making it possible to determine the amount of nanomaterials that come into contact with cells and tissue in culture.
Scientists at the Brookhaven National Laboratory have made the first 3D observations of how the structure of a lithium-ion battery anode evolves at the nanoscale in a real battery cell as it discharges and recharges. The details of this research could point to new ways to engineer battery materials to increase the capacity and lifetime of rechargeable batteries.
Toxicologists are presenting information on the uses of nanotechnology in food and food packaging and the current efforts to assure the safe development of the technology at the Society of Toxicology (SOT) 53rd Annual Meeting and ToxExpo in Phoenix, Ariz.
For the first time, physicists have demonstrated that information can flow through a diamond wire.
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