BROWSE

Related Scientist

manjare,sudeshtulshiram's photo.

manjare,sudeshtulshiram
분자활성촉매반응연구단
more info

ITEM VIEW & DOWNLOAD

Solvent-controlled novel Cu+ and Cu+/2+ fluorescent turn-ON probing

Cited 2 time in webofscience Cited 2 time in scopus
910 Viewed 159 Downloaded
Title
Solvent-controlled novel Cu+ and Cu+/2+ fluorescent turn-ON probing
Author(s)
Ha Y.; Murale D.P.; Sudesh T. Manjare; Kim M.; Jeong J.A.; David G. Churchill
Subject
Biothiol, ; Carbamoyl, ; Peroxynitrite, ; Reversibility, ; Schiff base, ; Solvent polarity
Publication Date
2016-01
Journal
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.37, no.1, pp.69 - 76
Publisher
KOREAN CHEMICAL SOC
Abstract
Anovel Schiff base probe, carbamoyl salicylimine benzothiazole hydrazine, was prepared and measured for its probing ability. High sensitivity was shown for Cu+and Cu2+. When solvent polarity was regulated through a combination of H2O and acetonitrile, selective sensing ofCu+or the total amount of Cu+andCu2+ was possible. In addition, a linear hypsochromic fluorescent shift of about 30 nm was shown. A binding stoichiometry of 1:1 exists at low concentration. Time-dependent emission measurement showed an exponential decay curve (τ1 = 2.99 × 103s, 10 equiv of Cu+) and a linear decay line (slope = -0.0216, 5 equiv of Cu+). Interference experiments in 50% acetonitrile inH2Oshowed that the emission produced by Cu+and Cu2+ was not disturbed by other metal ions or by acidity or basicity. Peroxynitrite changed the emission trends; Cu+emission decreased (78%) and Cu2+ fluorescence increased (28-fold). Biothiols, L-cysteine, DL-homocysteine, reduced glutathione, and N-acetyl-L-cysteine affected the complete reversibility of Cu+-induced emission in 50% (v/v) acetonitrile in H2O, relative to partial reversibility of Cu2+ emission. Thus, by regulating the ratio between acetonitrile and H2O, Cu+and Cu+/2+ can be probed selectively. © 2015 Korean Chemical Society, Seoul & Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
https://pr.ibs.re.kr/handle/8788114/2689
DOI
10.1002/bkcs.10626
ISSN
0253-2964
Appears in Collections:
Center for Catalytic Hydrocarbon Functionalizations(분자활성 촉매반응 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
2016-07-15-분자활성 - Ha_et_al-2016-Bulletin_of_the_Korean_Chemical_Society.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse