A cell phone–based microscope can identify mutations in tumor tissue and image products of DNA sequencing reactions.
February 8, 2002|
A key step in the development of bacterial biofilms — complex structures resistant to many common antibiotics — is adhesion to the substrate. This process has important implications for the implantation of medical devices, but the genotypic differences between attached and planktonic cells remains unclear. In February 5 online Proceedings of the National Academy of Sciences, Karen Otto and Thomas Silhavy from Princeton University, USA describe the genetic mechanism used by Escherichi