EGFP/RFP-based FRET sensors for botulinum neurotoxin A biological activity detection and methodological validation - Yu Wang; Bingbing Zhang; Ruohui Zhang; Dang Ding; Wantong Ma; Wenrui Wang; Ziye Liu; Yanzhi Zhu; Xin Wang; Dejuan Zhi; Dongsheng Wang (Analytica Chimica Acta, 2025)