Some types of cosmetic lasers punch hundreds of microscopic holes into tissue, not only causing it to physically collapse but possibly triggering genes to go into healing mode. (sciencedaily.com)
The team created microscopic wounds in the pupae's epithelial layer using a laser that can be focused down to a point small enough to punch microscopic holes in individual cells (less than a millionth of a meter). (sciencedaily.com)
The scientists, an international team from the University of Bath, France, Germany, Holland, and the USA, deliberately introduced defects in titanium dioxide to form high concentrations of microscopic holes, and showed these can be reversibly occupied by magnesium and aluminium; which carry more than one electron per ion. (sciencedaily.com)