A new rhodamine based ‘turn-on’ Cu2+ ion selective chemosensor in aqueous system applicable in bioimaging View Full Text


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Article Info

DATE

2017-09

AUTHORS

Abhishek Maji, Somenath Lohar, Siddhartha Pal, Pabitra Chattopadhyay

ABSTRACT

A new rhodamine-based Schiff base (L) has been synthesized and characterized by physicochemical and spectroscopic tools. This organic molecule selectively reacts with Cu2+ ions with a remarkably significant optical change, which supports the development of a chemosensor for Cu2+ ions as low as nanomolar level in aqueous medium. On the basis of the experimental work, the ‘turn-on’ colorimetric/fluorimetric spectroscopic change is due to Cu2+ ion-assisted hydrolysis followed by spirolactam ring opening of the probe (L) in 20 mM HEPES buffer [pH 7.4; water/acetonitrile (9:1 v/v)]. The competitive ions do not affect the selectivity and specificity of the probe (L) in the detection of Cu2+ ions. The cell imaging study using fluorescence microscope showed that this non-cytotoxic probe is useful to detect the distribution of Cu2+ ions in AGS cells lines. A new turn-on non-cytotoxic rhodamine hydrazone derivative (L) senses Cu2+ ion in nano molar region selectively in 20 mM HEPES buffer [pH 7.4; water/acetonitrile (9:1 v/v)] and is an efficient biomarker to detect Cu2+ ions in living cells. More... »

PAGES

1423-1430

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s12039-017-1349-4

DOI

http://dx.doi.org/10.1007/s12039-017-1349-4

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1090956853


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