A water compatible turn ‘on’ optical probe for Cu2+ based on a fluorescein–sugar conjugate
作者： Uzra Diwan , Ajit Kumar , Virendra Kumar , K.K. Upadhyay , P.K. Roychowdhury
DOI: 10.1016/J.SNB.2014.02.031
关键词:
摘要: Abstract A fluorescein–sugar conjugated chromo-fluorogenic turn ‘on’ probe (FG) has been synthesized for detection of Cu 2+ . The FG comprises fluorescein as an efficient fluorophore and a sugar moiety, viz., galactose the binding unit. inclusion into led towards its good water compatibility. When was added in 70% aqueous HEPES buffered solution (pH 7.4) FG, absorbance fluorescence spectral pattern same were modulated dramatically with observation absorption emission bands at 632 515 nm, respectively. limit from titration calculated 6.32 nM which further establishes high sensitivity studies interaction indicated metal ion triggered spirolactam ring opening mechanistic pathway sensing phenomenon.
sci-hub.se 参考文章(46)
Maryam Hazegh-Azam, Maria C Linder, Copper biochemistry and molecular biology The American Journal of Clinical Nutrition. ,vol. 63, ,(1996) , 10.1093/AJCN/63.5.797
Tianrong Li, Zhengyin Yang, Yong Li, Zengchen Liu, Gaofei Qi, Baodui Wang, A novel fluorescein derivative as a colorimetric chemosensor for detecting copper(II) ion Dyes and Pigments. ,vol. 88, pp. 103- 108 ,(2011) , 10.1016/J.DYEPIG.2010.05.008
Nitin Kumar Singhal, Balaji Ramanujam, Vairamani Mariappanadar, Chebrolu Pulla Rao, Carbohydrate-based switch-on molecular sensor for Cu(II) in buffer: absorption and fluorescence study of the selective recognition of Cu(II) ions by galactosyl derivatives in HEPES buffer. Organic Letters. ,vol. 8, pp. 3525- 3528 ,(2006) , 10.1021/OL061274F
Xing Ma, Zhuowei Tan, Guohua Wei, Dongbin Wei, Yuguo Du, Solvent controlled sugar–rhodamine fluorescence sensor for Cu2+ detection Analyst. ,vol. 137, pp. 1436- 1439 ,(2012) , 10.1039/C2AN16155A
Shengju Ou, Zhihua Lin, Chunying Duan, Haitao Zhang, Zhiping Bai, A sugar-quinoline fluorescent chemosensor for selective detection of Hg2+ ion in natural water Chemical Communications. pp. 4392- 4394 ,(2006) , 10.1039/B607287A
Gemma Aragay, Josefina Pons, Arben Merkoçi, Recent trends in macro-, micro-, and nanomaterial-based tools and strategies for heavy-metal detection. Chemical Reviews. ,vol. 111, pp. 3433- 3458 ,(2011) , 10.1021/CR100383R
Fasil A. Abebe, Ekkehard Sinn, Fluorescein-based fluorescent and colorimetric chemosensors for copper in aqueous media Tetrahedron Letters. ,vol. 52, pp. 5234- 5237 ,(2011) , 10.1016/J.TETLET.2011.07.127
Xiaoqiang Chen, Tuhin Pradhan, Fang Wang, Jong Seung Kim, Juyoung Yoon, Fluorescent chemosensors based on spiroring-opening of xanthenes and related derivatives. Chemical Reviews. ,vol. 112, pp. 1910- 1956 ,(2012) , 10.1021/CR200201Z
Virendra Kumar, Ajit Kumar, Uzra Diwan, K. K. Upadhyay, Uncovering the true mechanism of optical detection of HSO4- in water by Schiff-base receptors--hydrolysis vs. hydrogen bonding. Chemical Communications. ,vol. 48, pp. 9540- 9542 ,(2012) , 10.1039/C2CC33130F
Uzra Diwan, Ajit Kumar, Virendra Kumar, K. K. Upadhyay, Solvent viscosity tuned highly selective NIR and ratiometric fluorescent sensing of Fe3+ by a symmetric chalcone analogue Dalton Transactions. ,vol. 42, pp. 13889- 13896 ,(2013) , 10.1039/C3DT50733E