Colorimetric recognition of Cu2+ and fluorescent detection of Hg2+ in aqueous media by a dual chemosensor derived from rhodamine B dye with a NS2 receptor

Li, Min; Sun, Yan; Dong, Lu; Feng, Qingchuan; Xu, Hong; Zang, Shuang‐Quan; Mak, Thomas C. W.

doi:10.1016/j.snb.2015.11.132

Cited by 75 publications

(24 citation statements)

References 60 publications

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“…The proposed sensor system exhibited a good analytical performance for Cu 2+ ions colorimetric sensing with a wide linear range (0–22 μM), low limit of detection (0.279 μM), good selectivity, and recovery studies. The performance of the sensor was similar or sometimes better compared to the some of the reported colorimetric sensor systems for Cu 2+ ions (Table S1 Supplementary material ).…”

Section: Resultssupporting

confidence: 58%

A novel mixed matrix membrane of phenolphthalein hydrazide and polysulfone for the detection of copper ions in environmental water samples

Sreeramareddygari

Kempahanumakkagari

Padaki

et al. 2019

Env Prog and Sustain Energy

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The novel membrane test strip of phenolphthalein hydrazide (PH)‐polysulfone has been designed and demonstrated for Cu2+ ions detection. Before finding performance of membrane the studies with PH alone has been performed. Aqueous solutions of PH are colorless, but upon interaction with Cu2+ ions become pink (when 8.2 ≤ pH ≥ 12). The colorimetric change is initiated by the coordination of Cu2+ with PH as a polydentate ligand, opening the spirolactam ring that subsequently hydrolyses releasing phenolphthalein (P). Further membrane was preloaded with PH that could be used as a simple, low cost, and portable sensor for Cu2+ ions in environmental water samples. Given the detection limits of this sensor, a maximum response would warn the tester that Cu2+ concentrations were above safe drinking regulation values. Approximate concentrations can be determined via a color comparison chart. Different metal ions were tested in order to determine the chemodosimeters specificity, of the 12 tested ions only Hg2+ induced a similar molecular transformation (i.e., PH to P). The chemodosimeter allows the quantification of Cu2+ ions in the linear dynamic range of 0–22 μM. The Sandell sensitivity, limit of detection, limit of quantification, and relative standard deviation were found to be 0.276 μg/mL/cm2, 0.279 μM, 1.674 μM, and 0.682% respectively. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019

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Section: Resultssupporting

confidence: 58%

A novel mixed matrix membrane of phenolphthalein hydrazide and polysulfone for the detection of copper ions in environmental water samples

Sreeramareddygari

Kempahanumakkagari

Padaki

et al. 2019

Env Prog and Sustain Energy

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“…This resulted in a red emission and a color change from colorless to pink because of a shi in the equilibrium state from a spirolactam to a ring-open amide. [27][28][29][30][31][32][33][34][35] In this work, a chemosensor RhoSe containing a rhodamine B hydrazide linked with diphenyl selenium was synthesized for Hg 2+ detection (Scheme 1). Due to its spirolactam form, RhoSe has no visible absorption and is colorless.…”

Section: Introductionmentioning

confidence: 99%

A rhodamine-based chemosensor with diphenylselenium for highly selective fluorescence turn-on detection of Hg²⁺in vitro and in vivo

Venkatesan

Thirumalaivasan

2017

RSC Adv.

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“…UV-visible (UV-Vis) titrations were carried out essentially as described previously ( 65 , 66 ). Aliquots of metal divalent cations (concentrated stocks were made initially in water and then diluted in methanol) were added to a fixed concentration of 50 μM 8-HNT compound in methanol.…”

Section: Methodsmentioning

confidence: 99%

Antitrypanosomal 8-Hydroxy-Naphthyridines Are Chelators of Divalent Transition Metals

Wall

Moniz

Thomas

et al. 2018

Antimicrob Agents Chemother

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The lack of information regarding the mechanisms of action (MoA) or specific molecular targets of phenotypically active compounds can prove a barrier to their development as chemotherapeutic agents. Here, we report the results of our orthogonal genetic, molecular, and biochemical studies to determine the MoA of a novel 7-substituted 8-hydroxy-1,6-naphthyridine (8-HNT) series that displays promising activity against Trypanosoma brucei and Leishmania donovani.

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Colorimetric recognition of Cu2+ and fluorescent detection of Hg2+ in aqueous media by a dual chemosensor derived from rhodamine B dye with a NS2 receptor

Cited by 75 publications

References 60 publications

A novel mixed matrix membrane of phenolphthalein hydrazide and polysulfone for the detection of copper ions in environmental water samples

A novel mixed matrix membrane of phenolphthalein hydrazide and polysulfone for the detection of copper ions in environmental water samples

A rhodamine-based chemosensor with diphenylselenium for highly selective fluorescence turn-on detection of Hg²⁺in vitro and in vivo

Antitrypanosomal 8-Hydroxy-Naphthyridines Are Chelators of Divalent Transition Metals

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Colorimetric recognition of Cu2+ and fluorescent detection of Hg2+ in aqueous media by a dual chemosensor derived from rhodamine B dye with a NS2 receptor

Cited by 75 publications

References 60 publications

A novel mixed matrix membrane of phenolphthalein hydrazide and polysulfone for the detection of copper ions in environmental water samples

A novel mixed matrix membrane of phenolphthalein hydrazide and polysulfone for the detection of copper ions in environmental water samples

A rhodamine-based chemosensor with diphenylselenium for highly selective fluorescence turn-on detection of Hg2+in vitro and in vivo

Antitrypanosomal 8-Hydroxy-Naphthyridines Are Chelators of Divalent Transition Metals

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A rhodamine-based chemosensor with diphenylselenium for highly selective fluorescence turn-on detection of Hg²⁺in vitro and in vivo