Biomedical scientist Shuming Nie is testing the use of nanoparticles called quantum dots to dramatically improve clinical diagnostic tests for the early detection of cancer. The tiny particles glow and act as markers on cells and genes, giving scientists the ability to rapidly analyze biopsy tissue from cancer patients so that doctors can provide the most effective therapy available.
Nie, a chemist by training, is an associate professor in the Wallace H. Coulter Department of Biomedical Eng
Microbiologists from the University of Nijmegen have discovered that a methane-forming archaeabacterium sometimes deliberately allows hydrogen ions to leak out of its cell. At high hydrogen concentrations in particular, the cell membrane works as a sort of pressure valve. The waste of energy seems to be of vital importance for the microorganism.
The researchers examined how a bacterium adapts to changing circumstances. The study focussed on the behaviour of the relatively simple methane prod
Women with a combined HIV/malaria infection more frequently experience complications during pregnancy than healthy women. This is revealed in research from Kenya. However, to their surprise the researchers established that HIV-infected mothers with a mild malaria infection less frequently transmit the HIV infection to their children than HIV-infected mothers without malaria.
In Kenya, the epidemiologists Annemieke van Eijk and John Ayisi investigated the interaction between HIV and malaria a
Women may worry more about their weight, but it’s men who are more likely to become hooked on exercise, a University of Florida study shows.
College-age men were twice as likely as their female counterparts to exercise to excess, and were more prone to becoming irritable and tense if they missed a scheduled workout time, according to a study published in the June issue of the journal Psychology of Addictive Behaviors.
“We think of exercise as a positive behavior, and for th
A company spun out from the UK’s University of Manchester has become the first in the world to produce and ship multi-gram quantities of quantum dots – and has launched a unique ‘Free Evaluation Samples’ program throughout the EU and UK.
Using a patented process, Nanoco Ltd is not only able to ship its standard ‘NanoDots’ in production-level quantities to meet growing market demand, but can easily configure NanoDots to meet custom performance specifications – previously a long process of t
A team of experts has refuted previous findings published last summer stating that Pfiesteria is not toxic to fish or humans. When they cultured the same strain of P. shumwayae studied by the dissenting scientists, it produced a toxin that killed fish within minutes.
Dr. JoAnn Burkholder, director of North Carolina State Universitys Center for Applied Aquatic Ecology, presented the results of the new study Tuesday at the 10th International Conference on Harmful Algae in S