Near-Field Fiber-Optic Chemical Microsensors

Fiber-optic microsensors to measure backscattered light intensity in biofilms.

We have constructed tapered fiber-optic microsensors with a tip diameter of less than 10 microm 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...

Fiber-Optic Chemical Sensors and Fiber-Optic Bio-Sensors

This review summarizes principles and current stage of development of fiber-optic chemical sensors (FOCS) and biosensors (FOBS). Fiber optic sensor (FOS) systems use the ability of optical fibers (OF) to guide the light in the spectral range from ultraviolet (UV) (180 nm) up to middle infrared (IR) (10 μm) and modulation of guided light by the parameters of the surrounding environment of the OF...

CMOS-based chemical microsensors.

Large-area Fiber-optic Chemical Sensors

Fiber-optic chemical sensors and biosensors.

This biannual review covers the time period from January 2002 to January 2004 and is written in continuation of previous reviews (A1, A2). An electronic search in SciFinder and MedLine resulted in 532 hits. Since the number of citations in this review is limited, a stringent selection had to be made. Priority was given to fiberoptic sensors (FOS) for defined chemical, environmental, and biochem...