Designing Tunable Paper-Based Colorimetric Sensor for Precise Detection of Hydrogen Peroxide Vapor.

ABSTRACT: Detection of hydrogen peroxide (H₂O₂) vapor remains a significant challenge for conventional sensing technologies, despite its significance in applications such as the detection of improvised explosive devices (IEDs). Herein, we report a novel, highly sensitive colorimetric sensor system capable of detecting H₂O₂ vapor at concentrations as low as parts-per-billion (ppb). The sensor is based on a cellulose microfibril network, derived from paper towels, which provides a versatile and tunable substrate for the incorporation of Ti-(IV) oxo complexes. These complexes selectively bind to H₂O₂, forming a Ti-(IV)-peroxide coordination complex that induces a prominent chromatic shift from colorless to bright yellow, with an absorpti

SUBMITTER: Hossain R 

PROVIDER: S-EPMC12355273 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature