Biopolymer Optical Fibers for High-Sensitivity Quantitative Humidity Monitoring.

ABSTRACT: Because of their tunable refractive index and surface functionalities, biopolymers have emerged as excellent candidates for the fabrication of sustainable optical fibers. To date, the focus has been on identifying suitable biopolymers for optical fiber fabrication and their associated waveguiding properties. Despite a few studies showing their potential for short-distance applications and humidity sensing, the quantitative sensing of environmental parameters using biopolymer optical fibers has not been reported. Herein, for the first time, we report the quantitative determination of relative humidity (RH) across the visible and near-infrared region of the electromagnetic spectra using fully biopolymer optical fibers. Specifically, we demonstrate that methylcellulose and methylcellulose-alg

SUBMITTER: Patrakka J 

PROVIDER: S-EPMC12412099 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature