点击次数：

论文类型：期刊论文

发表时间：2018-05-01

发表刊物：BIOORGANIC & MEDICINAL CHEMISTRY

收录刊物：PubMed、SCIE、Scopus

卷号：26

期号：8

页面范围：1448-1452

ISSN号：0968-0896

关键字：Rhodamine B derivative; Cu2+ detection; Confocal fluorescent image; Maize roots

摘要：A new Rhodamine B-based fluorescent probe (RBO) is successfully designed and synthesized, which is a higher selective and sensitive chemosensor for Cu2+ than other ions. Under physiological conditions (pH = 7.0), the non emission RBO displays a rapid fluorescence increase together with a color change after addition of Cu2+ and the detection limit is down to 28 nM, which can clearly illustrate the distribution of Cu2+ with the help of laser scanning confocal microscope in plant tissues. Eventually, it confirmed that the Cu2+ accumulates mostly in the vascular cylinder and very less in the epidermal cells of maize roots, which is important to understand how the plants take up, transport and store in the Cu2+. (C) 2017 Elsevier Ltd. All rights reserved.