A collaboration between Lehigh University physicists and University of Miami biologists addresses an important fundamental question in basic cell biology: How do living cells figure out when and where to grow?
Standard methods to monitor glucose levels require invasive and time-consuming handling of the cell culture. A team of engineers is developing an alternative approach that takes advantage of new microfluidic techniques. In a continuous and controlled process, the researchers created small droplets of polymer that encapsulated pairs of fluorescing molecules.
An international team of researchers from NASA's Ames Research Center in Moffett Field, Calif., and the National Nanofab Center in Korea have made a tiny version of vacuum tubes that could be incorporated into circuits.
Researchers from the University of Cambridge and Toshiba Research Europe Ltd. have created an all-semiconductor quantum logic gate, a controlled-NOT (CNOT) gate. They achieved this breakthrough by coaxing nanodots to emit single photons of light on demand.
Researchers from the Institut Pasteur and CNRS have set up a new optical microscopy approach that combines two recent imaging techniques in order to visualize molecular assemblies without affecting their biological functions, at a resolution 10 times better than that of traditional microscopes.
A new study, using experimentation with a highly advanced spectrometer for molecular rotational spectroscopy, has removed some of the mystery and validates some very complex theory involving the way water molecules bond.
Krzysztof Szalewicz, professor of physics and astronomy at the University of Delaware, and Rafal Podeszwa of the University of Silesia Institute of Chemistry in Poland have developed and validated a more accurate method for predicting the interaction energy of large molecules, such as biomolecules used to develop new drugs.
The first purely silicon oxide-based 'Resistive RAM' memory chip that can operate in ambient conditions - opening up the possibility of new super-fast memory - has been developed by researchers at UCL.
Silicon microcantilevers modified with a three-dimensional layer of vertical titanium dioxide nanotubes can be used in micromechanical sensors with optical signal detection to detect low levels of explosives.
Led by Professor Wang Enge at Peking University (PKU) and Professor Wang Feng at the University of California, Berkeley, a joint research team recently reported their major progress on an atlas of carbon nanotube optical transitions.
Wenn Elektronen die Energie zum ueberwinden einer Energiebarriere nicht haben, "tunneln" sie einfach durch diese Barriere hindurch. Forscher koennen den Zeitpunkt des Austritts aus der Barriere zum ersten Mal exakt bestimmen und schlussfolgern daraus: Die Zeit, die das Elektron fuer das Tunneln braucht, ist gleich Null.