Flexible Cellulose Nanofibril-Based Surface-Enhanced Raman Scattering Substrate via Silver-Ammonia-Mediated In SituPhotoreduction for Pesticide Residue Detection and Full-Spectrum Thiram Quantification.
Uniform and reproducible Ag nanostructures are essential for flexible cellulose-based surface-enhanced Raman scattering (SERS) substrates. Herein, a flexible SERS substrate was fabricated by in situ photoreduction of a silver-ammonia precursor on TEMPO-oxidized cellulose nanofibril (TOCNF) films without external reduci...