1.
Eur Biophys J
; 38(1): 111-9, 2008 Nov.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18661127
RESUMO
An interferometer that measures the refractive index changes due to bacterial metabolism is described. The apparatus permits simultaneous and real time measurement of bacterial growth in several samples of slowly growing mycobacteria. The error sources are discussed and the sensitivity of the apparatus is tested. For the species Mycobacterium bovis BCG and M. smegmatis, a relation between refractive index change and bacterial concentration is determined experimentally and the time constant of bacterial growth is measured.