ONE SENSOR PLATFORM
for all your sensing needs

U-bent Fiber optic sensors through precise
geometrical modifications offer high refractive index
sensing, and exceptional evanescent wave
absorbance sensitivity.

U-bent Fiber Optic Sensor

Optical fibers are used for sensing application, by coupling a fiber to a pair of light source and detector at either ends, allowing sample excitation to probe its refractive index or spectral absorption characteristics.

Maximized light coupling to
sample

U-shaped fiber optic probes maximize light interaction with sample through efficient evanescent power coupling by virtue of optimized probe geometric design.

Ideal even for complex sample matrices

U-FOS have high surface sensitivity and zero bulk sensitivity. Hence analytes in complex sample matrices can be analysed without worrying about cross-sensitivity and interference from the matrix.

Applications:

Remarkable Refractive Index (RI) Sensitivity for Process monitoring

Exceptional Evanescent Wave Absorbance (EWA) Sensitivity for biomolecular assays

Novel characterization tool for in situ nanomaterial synthesis

Features:

Real-time monitoring with broad dynamic range for a wide concentration range

Disposable probe cartridges akin to screen-printed electrodes for electrochemical sensors

Dip-type optical probes with small form-factor compatible with PCR tubes

Established protocols for functionalization & Immobilization

Various surface functionalization protocols have been optimized for silica and polymer U-FOS. Further optimization has been achieved for maximizing immobilization of proteins, nucleic acids, small molecules, or metal organic frameworks to achieve efficient and highly sensitive detection of various chemical and biomarkers.

Versatile platform for biomolecular assays

U-FOS technology can be used for specific detection of proteins, nucleic acids, and small molecules through various labelled & label-free assays (direct, sandwich and competitive).

You can use these probes for any analyte or assay of interest. These probes have been reported to be useful for various disease diagnosis (e.g. pre-eclampsia [1], Covid [2], Tuberclosis [3], endotoxins [4], etc.)

[1] doi.org/10.1016/j.bios.2024.116312
[2] doi.org/10.1109/LSENS.2023.3340598
doi.org/10.1109/JSEN.2021.3107736
[3] doi.org/10.1016/j.bios.2020.112488
[4] doi.org/10.1016/j.bios.2018.12.045