An electrospun micro/nanofibrous mesh based nontoxic sensor for optical detection of high humidity

Abstract

Optical transition of a polyethylene oxide electrospun micro/nanofibrous mesh from opaque to transparent has been studied by UV-Vis spectroscopy and scanning electron microscopy. This transition occurs only above approximately 88% relative humidity and could be used for humidity monitoring by the naked eye for food quality control in which low toxicity and irreversibility are highly required.