A biosensor, sensor array, sensing method and sensing apparatus are provided in which individual cells or randomly mixed populations of cells, having unique response characteristics to chemical and biological materials, are deployed in a plurality of microwells formed at the distal end of individual...http://www.google.com/patents/US6210910?utm_source=gb-gplus-sharePatent US6210910 - Optical fiber biosensor array comprising cell populations confined to microcavities
