Hits:

Indexed by:期刊论文

Date of Publication:2018-05-01

Journal:BIOORGANIC & MEDICINAL CHEMISTRY

Included Journals:PubMed、SCIE、Scopus

Volume:26

Issue:8

Page Number:1448-1452

ISSN No.:0968-0896

Key Words:Rhodamine B derivative; Cu2+ detection; Confocal fluorescent image; Maize roots

Abstract: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.