Temperature identification type nanofiber-based wound film as well as preparation method and application thereof

The invention discloses a temperature recognition type nanofiber-based wound film and a preparation method and application thereof.The wound film comprises an upper layer and a lower layer, the upper layer is prepared by chelating carboxylated nanocellulose with Eu < 3 + >/Tb < 3 + > ions to prepare carboxylated nanocellulose with fluorescent colors, and the lower layer is prepared by chelating Eu < 3 + >/Tb < 3 + > ions with Eu < 3 + >/Tb < 3 + > ions; the lower layer is prepared by chemically grafting polyethyleneimine with photodynamic responsiveness and dopamine with near-infrared responsiveness on carboxylated nano-cellulose respectively, and then carrying out ultraviolet polymerization on the carboxylated nano-cellulose, hydroxypropyl methyl cellulose and photocuring hydrogel to obtain the temperature recognition fiber membrane. Photodynamic responsive intelligent nanofibers and near-infrared responsive intelligent nanofibers are prepared, and then the photodynamic responsive intelligent nanofibers and