Fabrication of color changeable CO2 sensitive nanofibers

Abstract

A CO₂ sensor was fabricated by attaching CO₂-sensitive spiropyran groups onto versatile photo-crosslinked poly(glycidyl methacrylate) (PGMA) precursor nanofibers via a nucleophilic ring-opening reaction. These nanofibers can quickly respond to dissolved and gaseous CO₂. Hence, these spiropyran functional nanofibers are expected to be employed as CO₂ sensors for the visual detection of CO₂.