Information coded as impulses is transferred from one neuron to its target at synapses. At these close neuron-neuron contacts the impulse opens voltage sensitive calcium channels allowing the influx of calcium ions (Ca2+) and this ion then acts as a 'second messenger' to trigger the release of neurotransmitters by the fusion of a secretory vesicle with the surface membrane. Scientists have now established that the relationship between the calcium channel and the secretory vesicle is very intimate, so much so that the fusion of a secretory vesicle can be triggered by the plume of Ca2+ entering through a very closely situated single calcium channel.
A material just one atom thick that is stronger than steel but flexes like rubber. A 'mini-submarine' that can trick the immune system and deliver a payload of chemotherapy deep inside a tumour. They sound like the fantasies of science fiction writers, but they are among the discoveries being presented at Nano Israel 2010, a nanotech conference in Tel Aviv that has attracted researchers from across the science world, united by their work with the very, very small.
A tunable infrared laser system for the selective processing of organic layers in opto-electronical components is the goal of the new research project IMPROV, which started in September, 2010. The EU has provided approximately 2.4 million Euros support from the 7th Framework Programme for the project, which will run until 2013.
Der Arbeitsgruppe Prof. Robert Tampe an der Goethe-Universitaet ist es in Zusammenarbeit mit dem Walter-Schottky Institut der TU Muenchen gelungen, eine neue Methode zur automatisierbaren und Hochdurchsatz-geeigneten Untersuchung der hochempfindlichen Membranproteine zu entwickeln.
A new report from the inspector general of the U.S. EPA on the lack of sufficient monitoring of water supplies provides more reason for Americans to consider using 'final barrier' technology in their homes, according to the Water Quality Association.
Oak Ridge National Laboratory researchers Jeremy Busby, De-en Jiang and Sergei Kalinin are among 13 Department of Energy scientists to receive the Presidential Early Career Award for Scientists and Engineers, or PECASE.
Blinking numbers on a liquid-crystal display (LCD) often indicate that a device's clock needs resetting. But in the laboratory of Zhong Lin Wang at Georgia Tech, the blinking number on a small LCD signals the success of a five-year effort to power conventional electronic devices with nanoscale generators that harvest mechanical energy from the environment using an array of tiny nanowires.
Scientists at the Institute of Bioengineering and Nanotechnology (IBN) have reported another breakthrough in their quest to develop green technologies for pharmaceuticals synthesis. They have devised a new environmentally friendly technique to transform carbon dioxide, an abundant and renewable carbon source, into highly functionalized propiolic acids, which are basic building blocks for the synthesis of a wide range of pharmaceuticals such as cholesterol-reducing drugs and peptidomimetic and other small molecule inhibitors that may be used, for example, to kill cancer cells.
Two scientists with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) were among the 85 researchers named by President Barack Obama to receive the prestigious Presidential Early Career for Scientists and Engineers (PECASE) Award, the highest honor bestowed by the United States government on early-career researchers.
Robert Curl, Ph.D., awarded the Nobel Prize in Chemistry in 1996 as one of the co-discoverers of carbon cage compounds called the fullerenes, will discuss the timeline of human experience with elemental carbon and its chemistry during the lecture 'A Brief History of Carbon'.
Researchers from the Niels Bohr Institute at the University of Copenhagen have succeeded in storing quantum information using two 'entangled' light beams. Quantum memory or information storage is a necessary element of future quantum communication networks.