Fiber-optic microsensors to measure backscattered light intensity in biofilms
- 1 July 2000
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 39 (19) , 3408-3412
- https://doi.org/10.1364/ao.39.003408
Abstract
We have constructed tapered fiber-optic microsensors with a tip diameter of less than 10 µm to measure profiles of backscattered light in biofilms, which are thin layers of micro-organisms firmly attached to surfaces. The observed response agrees well with local effective diffusivity microelectrode measurements, with R 2 > 0.85. A strong relation between signal intensity and wavelength has been observed at 670 and 1320 nm. These sensors have the potential to replace local effective diffusivity microelectrodes for true in situ biofilm measurements.Keywords
This publication has 9 references indexed in Scilit:
- Measurement of local effective diffusivity in heterogeneous biofilmsWater Science & Technology, 1998
- A simple fiberoptic sensor to detect the penetration of microsensors into sediments and other biogeochemical systemsLimnology and Oceanography, 1997
- Measurement of local mass transfer coefficient in biofilmsBiotechnology & Bioengineering, 1995
- Tapered fiber tips for fiber optic biosensorsOptical Engineering, 1995
- MICROBIAL BIOFILMSAnnual Review of Microbiology, 1995
- Role of sulfate‐reducing bacteria in corrosion of mild steel: A reviewBiofouling, 1995
- Biofilms and chronic bacterial infectionsClinical Microbiology Newsletter, 1994
- Kinetic investigation of microbial souring in porous media using microbial consortia from oil reservoirsBiotechnology & Bioengineering, 1994
- An oxygen microsensor with a guard cathodeLimnology and Oceanography, 1989