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MIT physicists have developed a new tabletop particle detector that is able to identify single electrons in a radioactive gas. As the gas decays and gives off electrons, the detector uses a magnet to trap them in a magnetic bottle. A radio antenna then picks up very weak signals emitted by the electrons, which can be used to map the electrons’ precise activity over several milliseconds. The team worked with researchers at Pacific Northwest National Laboratory, the University of Washington, the University of California at Santa Barbara (UCSB), and elsewhere to record the activity of more than 100,000 individual electrons in krypton gas. The majority of electrons observed behaved in a characteristic pattern: As the radioactive krypton gas decays, it emits electrons that vibrate at a baseline frequency before petering out; this frequency spikes again whenever an electron hits an atom of radioactive gas. As an electron ping-pongs against multiple atoms in the detector, its energy a

Researchers at various reserach institutes has been working and successful in finding out a dru that can work against HIV virus and immune against it. The drug has worked against doses of HIV that were higher than  transmitted between humans, and works for at least eight months after injection. A new drug led by the team of researchers at  Scripps Research Institute in the US, is found to be effective against doses of HIV-1, HIV-2 and SIV (simian immunodeficiency virus) that have been extracted from humans - including what researchers consider to be the ‘hardest-to-stop’ variants. "Our compound is the broadest and most potent entry inhibitor described so far,” lead researcher Michael Farzan from the Scripps Institute said in a press release. "Unlike antibodies, which fail to neutralise a large fraction of HIV-1 strains, our protein has been effective against all strains tested, raising the possibility it could offer an effective HIV vaccine alternative.” HIV infect

Scientists has found out that Gold nanotubes can be used in fighting Cancer; internal nanoprobes for high-resolution imaging; drug delivery vehicles; and agents for destroying cancer cells. The article published in the journal, Advanced Functional Materials, details the first successful demonstration of the biomedical use of gold nanotubes in a mouse model of human cancer.  Dr Sunjie Ye, who is based in both the School of Physics and Astronomy and the Leeds Institute for Biomedical and Clinical Sciences at the University of Leeds, said:  “High recurrence rates of tumours after surgical removal remain a formidable challenge in cancer therapy. Chemo- or radiotherapy is often given following surgery to prevent this, but these treatments cause serious side effects. Gold nanotubes – that is, gold nanoparticles with tubular structures that resemble tiny drinking straws – have the potential to enhance the efficacy of these conventional treatments by integrating diagnosis and therapy