Gold quantum dots have applications in biological labeling, nanoscale optics
A new class of water-soluble quantum dots made from small numbers of gold atoms could b...ble fluorescence to systems based on semiconductor quantum dots. Providing the "missing link" between atomic and nanoparticle behavior in noble metals, these...Cleaner water, more efficient electricity among UH chemical research
...ations, ranging from bacteria removal in water and quantum shuttles in electricity to defining career moments, at the 228th National Meeting of the American Chemical Society, Aug. 22 to 26 in Philadelphia. Founded in 1876, the American Chemical Society (ACS) is a nonprofit, scientific, educational organiza...Why damaged DNA gets a case of the bends
...ymes recognize." Haranczyk said this was the first quantum chemistry simulation to survey such a large biological system--in this case, a DNA fragment made up of 350 atoms. "With a system so big, one can't do this kind of work without a supercomputer. Fortunately, we had access to one of the world's 10 most ...Newly designed nanoparticle quantum dots simultaneously target and image prostate tumors in mice
...ltaneously target and image cancerous tumors. The quantum dots were encapsulated in a highly protective poly... of solid prostate tumors. They then encapsulated quantum dots, made from cadmium selenide, within a highly protective coating called an ABC triblock copolyme...New textbook introduces students to the foundations, applications of nanotechnology
... altered electronic and optical properties, called quantum dots. The remaining five sections describe applic... A section on nanoscale magnetic systems looks at quantum computing and magnetic storage. A section on nanoelectromechanical systems examines nanomachined mec...Story tips from the Department of Energy's Oak Ridge National Laboratory, July 2004
...photons. This property could be useful in photonic quantum information processing applications. [Contact: Ron Walli 865-576-0226; wallira@ornl.gov ]...Releasing pet fish into the wrong ocean proves a diaster
...bs. "Introduction of the lionfish is an ecological quantum leap for local fishes that have no experience dealing with this voracious predator," Semmens says. Walter Courtenay, a research fishery biologist with the US Geological Survey, suspects that dive boat captains hoping to attract more customers were ...Growing replacement teeth and dental tissues
...is one with immense potential, capable of bringing quantum advances in treatment for our patients. The need for high-quality research in the basic sciences is paramount to ensuring that the development of novel clinical treatment modalities is underpinned by robust mechanistic data, and that such approaches ...Trapping carbon in soil key for protecting global food security, dealing with climate change
...ielded six times that amount. "This is the type of quantum jump in crop yield needed at the continental scale to ensure food security in Sub-Saharan Africa," said Lal, who is also a professor of natural resources. "Soil needs enough carbon in order to hold water and nutrients and to grow crops efficiently. "...Strengthening independent junior research groups in collaborative research centres
...erything around us. To test the underlying theory, quantum chromodynamics, large accelerators are required with which electrons, for example, are shot at atomic nuclei. The electron beam assumes the function of a light beam in an ordinary microscope. An important accelerator, the Electron Stretcher Accelerat......f Michigan will report on the first observation of quantum entanglement of a single photon and a single atom,...ent that could eventually be used for a variety of quantum communication protocols or for quantum computing. Until recently quantum entanglement had only been...UCLA chemists develop new coating for nanoscale probes
...bilize and introduce into the cell different color quantum dots that can all be excited by a single blue ligh...ifferent proteins in the cell with different-color quantum dots. The research team includes Weiss -- the principal investigator -- and graduate student F...Ancient Greeks help scientists build environmentally friendly nano devices
...emperature superconductivity, and progress towards quantum computers. Professor Baumberg, from Southampton University, said: "These environmentally friendly nano-coatings stay embedded within their operating devices. The nano-perforations produce new electronic, magnetic, optical and bio-sensing properties, ...Can you tell the difference between Quarks and DNA?
...taquark turns existing theory on its head Death by quantum tunnelling? Liverpool team to boost ability of hospital positron emission tomography (PET) scanners Making nuclear power safe through alchemy: the transmutation of nuclear waste products Making the heaviest elements in the world Nobel prize-winner P...Heinz Maier-Leibnitz prizes 2004
...e Filipp Furche focuses his efforts on developing quantum chemical methods, implementing them in highly efficient computer programs and using them to solve current problems in chemistry. These investigations are of great interest in photochemistry and photophysics, for instance in predicting the electron sp...NJIT chemists pave way for cheap, usable field test for polluted, toxic, water, air, food
...lves directly on the devices. "Doing this creates quantum interactions on the single wall carbon tubes and makes the analytes fall into lines," said Mitra. The other approach which can also be used for airborne or liquid pollutants as well as food contaminants uses a chemical process to create a hard g...Scientists calculate how high heels can go
...physicist colleagues have no trouble understanding quantum mechanics but can't figure out how women can wear high heels. Now I can explain to them how I minimise the probability of tripping up"....Obesity drug inhibits prostate tumor growth
.... The method developed by Dr. Smith represents a quantum leap in drug discovery. So-called "activity-based" proteomics screening is a new frontier in medical research, based on applying information gleaned from the human genome project. The ability to compile a comprehensive profile of a potential drug's......ative approaches based on multiple combinations of quantum dots and ligands will be invaluable for such investigations." End image here In the same issue of Nature Biotechnology, two leading experts in live cell imaging reviewed the results of the study. "Semiconductor nanocrystals can track movement......des the study of various phenomena as different as quantum mechanical aspects of chaos and price fluctuations on financial markets. Timme, Wolf, and Geisel have now demonstrated that the theory of random matrices can also be applied to the dynamic evolution of complex networks. This new approach allows the e...