Advances in Optical Fiber Sensors for Chemical and Biosensing Applications

Dear Colleagues,

Recent advances in optical fiber-based sensing technologies have resulted in a substantial expansion of their applications in analytical chemistry, environmental monitoring, biomedical diagnostics, and industrial process control. In particular, systems utilizing attenuated total reflection (ATR), surface plasmon resonance (SPR), and localized surface plasmon resonance (LSPR) have demonstrated outstanding sensitivity and versatility for the detection of chemical and biological analytes in complex aqueous and gaseous environments. Fiber-optic LSPR sensors, which integrate plasmonic nanostructures with evanescent-field interactions, have enabled label-free, real-time, and miniaturized measurements across a wide range of chemical and biosensing applications. These include pollutant detection, water quality monitoring, clinical diagnostics, and food and pharmaceutical analysis.

The present Special Issue, entitled "Advances in Optical Fiber Sensors for Chemical and Biosensing Applications," seeks to shed light on the most recent advancements in the domain of optical materials, sensing mechanisms, and device architectures, with a view to enhancing sensitivity, selectivity, and long-term stability. Contributions addressing innovative fabrication methods, functional coatings, nanostructured interfaces, and environmentally sustainable designs are especially encouraged. It is acknowledged that there is a paucity of research in this field, and, thus, both fundamental and applied studies that demonstrate interdisciplinary applications of optical fiber sensors are highly welcome. Such studies should ideally span the disciplines of chemistry, materials science, and photonics.

Prof. Dr. Hideki Kuramitz
Prof. Dr. Pedro Marques de Almeida
Guest Editors

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