Patent ID: 6777226
Filing Date: 2004-08-17
Classification: C12M,C12Q

Abstract:
A sensor device comprising:a container having at least one wall which is configured such that it is optically visible therethrough to define an optical detection portion; a sensor layer having first and second primary surfaces disposed in said container adjacent said container wall, wherein said sensor layer comprises a support material and an indicator material, said indicator material selected for its ability to undergo a change in a detectable property when positioned proximate microbial growth that is external of the bounds of the sensor layer, and wherein said sensor layer is configured, during operation, so as to provide a localized change in reflected ultraviolet, visible, and/or infrared light due to the presence of microorganisms in said container corresponding to an immobilized sample residing outside the sensor layer so that the microbial growth is beyond the bounds of the sensor layer which is detectable through said container wall optical detection portion.