
Brown University engineers have shown that both zinc and titanium oxide nanosurfaces can reduce the presence of bacteria. Discs with nanostructured surfaces had bumps that measured only .023 microns in diameter. Discs with microstructured surfaces had bumps that measured about 5 microns in diameter. Microstructured zinc oxide discs were host to 1,000 times more bacteria than the nanostructured zinc oxide discs. Similar, but less striking, results were duplicated on titanium oxide discs. The engineer`s hypothesis is that: `with the nanostructured
 
				








