Palladium induced activation of a substituted naphthopyran for smartphone assisted sensitive and selective sensing in aqueous solution

Kumar, Arvind; Kumar, Satish

doi:10.1016/j.molstruc.2020.129282

Journal of Molecular Structure

2021

DOI: 10.1016/j.molstruc.2020.129282

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Palladium induced activation of a substituted naphthopyran for smartphone assisted sensitive and selective sensing in aqueous solution

Arvind Kumar

Satish Kumar

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2024

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Cited by 8 publications

References 75 publications

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Cyanide‐Ion‐Induced J‐Aggregation of Merocyanine Dye for Paper‐Based Colorimetric Detection in Water

Kumar

2021

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A probe based on merocyanine dye was synthesized as a salt of p‐toluenesulfonate. Owing to the high solubility of merocyanine dye in water and H‐bonding ability, it was investigated for anion‐induced aggregation properties in the buffered medium [CH3CN: water (1 : 1/v: v)]. The probe recognized the existence of cyanide ion by forming an H‐bond and displacing the p‐toluenesulfonate group. The probe displayed a bluish‐purple color in response to cyanide ion addition, which was initially light pink. The complex formation and aggregation properties of the probe were investigated using techniques like naked eye detection, digital colorimetry, UV‐Visible, 1H‐NMR, and dynamic light scattering (DLS). Paper and solution‐based techniques aided by a smartphone were also used successfully in the determination process. An excellent limit of detection value (LOD) was witnessed in all the techniques exploited for sensing cyanide ions. Methods based on density functional theory (DFT) were also used to investigate the complex formation and observed a good correlation in experimental and theoretical results.

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Cyanide‐Ion‐Induced J‐Aggregation of Merocyanine Dye for Paper‐Based Colorimetric Detection in Water

Kumar

2021

ChemistrySelect

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Light responsive, electrochemically dimerizable, capture and release device based on photochromic oxazine for nanomolar level detection of Hg2+ ions

Kathuria

Kumar

2021

Journal of Electroanalytical Chemistry

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A light-responsive, highly sensitive probe to perceive mercuric ions in both water and biological samples using fluorescence, colorimetric & electrochemical techniques

Kathuria

Kaur²,

Kumar³

2023

Journal of Photochemistry and Photobiology A: Chemistry

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Palladium induced activation of a substituted naphthopyran for smartphone assisted sensitive and selective sensing in aqueous solution

Cited by 8 publications

References 75 publications

Cyanide‐Ion‐Induced J‐Aggregation of Merocyanine Dye for Paper‐Based Colorimetric Detection in Water

Cyanide‐Ion‐Induced J‐Aggregation of Merocyanine Dye for Paper‐Based Colorimetric Detection in Water

Light responsive, electrochemically dimerizable, capture and release device based on photochromic oxazine for nanomolar level detection of Hg2+ ions

A light-responsive, highly sensitive probe to perceive mercuric ions in both water and biological samples using fluorescence, colorimetric & electrochemical techniques

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