文献类型：期刊文献

英文题名：Turn-on fluorescence detection of carbon monoxide in plant tissues based on Cu2+ modulated polydihydroxyphenylalanine nanosensors

作者：Mu, Xiqiong[1,2]; Wang, Yinquan[2]; Xu, Jian[1]; Zeng, Fankui[1,3,4]

第一作者：Mu, Xiqiong

机构：[1] Research Center for Natural Medicine and Chemical Metrology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; [2] College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, 730101, China; [3] Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering, Yantai, 264006, China; [4] Qingdao Center of Resource Chemistry & New Materials, Qingdao, 266100, China

第一机构：Research Center for Natural Medicine and Chemical Metrology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China

通信机构：[1]Research Center for Natural Medicine and Chemical Metrology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China;[1]Research Center for Natural Medicine and Chemical Metrology, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China

年份：2024

外文期刊名：Analytical Methods

收录：EI(收录号：20240195966);Scopus(收录号：2-s2.0-85202481935)

语种：英文

外文关键词：Plant diseases

摘要：As an important signaling molecule, carbon monoxide (CO) plays an important role in plant growth and development including affecting stomatal movement, stress response and root development. Thus, it is necessary to develop fluorescent probes that can be used to detect CO in live plant tissues and further enable a deep-understanding of its biological function, mechanism and metabolism. In this paper, a novel and sensitive fluorescent probe based on Cu2+ modulated polydihydroxyphenylalanine nanoparticles (PDOAs) has been developed for the detection of CO. The fluorescence of PDOAs can be effectively quenched by Cu2+ through the multi-coordination interaction. In the presence of CO, Cu2+ can be effectively reduced to Cu+, which resulted in the release of free PDOAs and the Cu2+-quenched bright green fluorescence was restored obviously. Through this ingenious strategy, the abiotic CO can be accurately detected and identified with high selectivity, rapid response time within 5 min and an ultralow detection limit of 72.4 nM. Due to the admirable biocompatibility, the nano-material based probe has been successfully applied for in vivo imaging CO in the root tip and leave tissues of lettuce. To the best of our knowledge, this is the first example of a fluorescent probe-based methodology for the sensitive tracking of CO in plant tissues. ? 2024 The Royal Society of Chemistry.