Journal
BIOSENSORS-BASEL
Volume 13, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/bios13010064
Keywords
biosensor; bioimaging optical fiber biosensor; surface plasmon resonance; Mach-Zehnder interferometer; fiber Bragg grating; photoacoustic imaging
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Biosensing and bioimaging play a crucial role in understanding biological and pathological processes, and optical fiber has emerged as a promising technology in these fields. This review provides an overview of seven common types of optical fiber biosensors and optical fiber-based ultrasound detection in photoacoustic imaging (PAI), discussing their applications and potential in biosensing and bioimaging. Furthermore, the challenges and future directions in this area are briefly discussed.
Biosensing and bioimaging are essential in understanding biological and pathological processes in a living system, for example, in detecting and understanding certain diseases. Optical fiber has made remarkable contributions to the biosensing and bioimaging areas due to its unique advantages of compact size, immunity to electromagnetic interference, biocompatibility, fast response, etc. This review paper will present an overview of seven common types of optical fiber biosensors and optical fiber-based ultrasound detection in photoacoustic imaging (PAI) and the applications of these technologies in biosensing and bioimaging areas. Of course, there are many types of optical fiber biosensors. Still, this paper will review the most common ones: optical fiber grating, surface plasmon resonance, Sagnac interferometer, Mach-Zehnder interferometer, Michelson interferometer, Fabry-Perot Interferometer, lossy mode resonance, and surface-enhanced Raman scattering. Furthermore, different optical fiber techniques for detecting ultrasound in PAI are summarized. Finally, the main challenges and future development direction are briefly discussed.
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