According to researchers at MIT, a minuscule encoding error creates a defective collagen molecule that, at the site of the amino acid substitution, repels rather than attracts the collagen molecule alongside it. This creates a tiny rift in the tissue, which when repeated in many molecules, leads to brittle tissue, broken bones, deformity and, in the most severe form of the disease, death.
University of Kentucky electrical and computer engineering researcher J. Todd Hastings has won a two-year, $300,000 Young Faculty Award from the national Defense Advanced Research Projects Agency (DARPA).
Um Siliziumbloecke in hauchduenne Wafer zu zersaegen, braucht man das richtige Werkzeug: einen Kilometer langen Draht, benetzt mit einer Art Schleifpaste. Doch muessen alle Parameter optimal angepasst sein - nur so vermeidet man beim Schneiden grosse Materialverluste.
Bringing lively discussions on technologies with life-changing potential, SPIE Optics and Photonics runs through Thursday in the San Diego Convention Center. Approximately 4,500 international attendees are expected to attend the technical presentations and panels, professional development courses, and exhibition.
Researchers have devised a way to encapsulate bacteria in a synthetic polymer hydrogel. These new, stable, bio-hybrid materials maintain the microbes' ability to exchange nutrients and metabolic products with their environment, and could find widespread applications, for example, as biosensors, catalysts, drug-delivery systems, or in wastewater treatment