Electrospun polyvinyl alcohol/chitosan-ZIF-8@cyanidin cation-gallic acid multifunctional nanofilm for real-time visual monitoring of beef freshness - Qian Liang; Maonan Xu; Yalan Peng; Junwen Huang; Minjian Liao; Dongsong Lin; Yongkai Chen; Wuyi Zhou; Wenxu Zheng; Xianming Dong; Shuting Zhang (Chemical Engineering Journal, 2025)