Naphthalimide-based Probe for the Detection of Hypochlorite in a Near-perfect Aqueous Solution

Lee, Su Chan; Kim, Cheal

doi:10.2116/analsci.19p151

Cited by 13 publications

(3 citation statements)

References 46 publications

(39 reference statements)

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“…Among the fluorescent dyes, naphthalimide is one of the popular dyes often used in the synthesis of chemosensors/chemodosimeters because of its high chemical stability, high photostability, a large Stokes shift, and a strong fluorescence quantum yield [13]. There is, however, a few naphthalimide-based molecules for fluorometric detection of ClO − [14][15][16]. Therefore, creating a new naphthalimide-based chemosensor/chemodosimeter is an important issue.…”

Section: Introductionmentioning

confidence: 99%

A Naphthalimide–Sulfonylhydrazine Conjugate as a Fluorescent Chemodosimeter for Hypochlorite

Shiraishi¹,

Nakatani²,

Takagi³

et al. 2020

Chemosensors

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Hypochlorite anion (ClO−) is a widely-used disinfectant and a microbicidal agent in the immune system. Accurate detection of ClO− in environmental and biological samples by simply prepared chemosensors/chemodosimeters is important. Herein, we report that a naphthalimide–sulfonylhydrazine conjugate with an imine (C = N) linker, prepared via simple condensation, acts as an effective fluorescent chemodosimeter for ClO−. The molecule exhibits a weak emission, but ClO−-selective cleavage of its C = N bond creates a strong green emission. Ab initio calculation showed that the emission enhancement by ClO− originates from the suppression of intramolecular electron transfer from the photoexcited naphthalimide through the C = N linker. This response enables selective and sensitive detection of ClO− at physiological pH range (7–9) and allows fluorometric ClO− imaging in the presence of cells.

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Section: Introductionmentioning

confidence: 99%

A Naphthalimide–Sulfonylhydrazine Conjugate as a Fluorescent Chemodosimeter for Hypochlorite

Shiraishi¹,

Nakatani²,

Takagi³

et al. 2020

Chemosensors

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“…Hz, 4 J = 1.0 Hz,), 7.21 (td, 2H 12,20 , 3 J = 8.4 Hz, 4 J = 1.6 Hz), 7.69 (dd, 2H 10,18 , 3 J = 8.0 Hz, 4 J = 1.6 Hz), 7.87 (s, 2H 1,5 ), 8.57 (br s, 2H 15,23 ), 10.23 (s, 2H 8,16 ), 11.41 (s, 1H, -OH). 13 C NMR (100.62 MHz, DMSO): 19.5 (C 7 ), 109.5 (C 14,22 ), 114.5 (C 2,4 ), 116.3 (C 12,20 ), 123.2 (C 10,18 ), 129.20 (C 6 ), 131.1 (C 13,21 ), 133.7 (C 1,5 ), 137.3 (C 11,19 ), 151.4 (C 9,17 ), 160.3 (C 3 ), 169.5 (C 8,16 ), 192.2 (C 15,23 ). MS (% relative abundance of m/z assignment): 403 (0.013) [SB + H] + .…”

Section: Introductionmentioning

confidence: 99%

Anthranilic Acid Schiff Base as a Fluorescent Probe for the Detection of Arsenite and Selenite: A Detailed Investigation of Analytical Parameters and Mechanism for Interaction

Kaur¹,

Singh²,

Kaur

et al. 2020

ANAL. SCI.

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The exploration of an anthranilic acid based Schiff base SB as a 'Turn-ON' fluorescent probe for the detection of highly toxic selenite (Se IV ) and arsenite (As III ) species in aqueous medium is described. The selectivity of SB towards Se IV and As III in the presence of other ions was investigated by some spectrofluorimetric and 1 H NMR spectroscopic experiments. The studies revealed interaction between SB and As III via deprotonation of phenolic -OH which enhanced the conjugation in phenolate ion and in turn enhanced emission response. The SB has analytical prospects for the quantification of As III and Se IV with good sensitivity (LODs; 5.15 ppb for Se IV and 3.12 ppb for As III calculated by S/N=3σ/K). Furthermore, it can be used to evaluate real and synthetic samples for the presence of Se IV and As III species as well as fabrication of on-spot recognition devices (in the form of silica gels SB@SiO 2 and silica coated TLC aluminium strips SB@SiO 2 @Al).

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“…[1][2][3] Among various analytical methods, colorimetric and fluorescent assays are strongly preferred as optical methods, because they offer versatile advantages like fast response, and high selectivity and sensitivity. [4][5][6][7][8] Therefore, a wide range of colorimetric and fluorescent sensors have been reported for detecting diverse metal ions.…”

Section: Introductionmentioning

confidence: 99%

A Heterocyclic-based Bifunctional Sensor for Detecting Cobalt and Zinc Ion

Lee

Kim

2020

ANAL. SCI.

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A new bifunctional chemosensor HBP ((E)-2-(2-((5-bromopyridin-2-yl)methylene)hydrazinyl) quinoline) based on heterocyclic compounds was designed and studied. The HBP showed successful detecting ability toward cobalt ion with a UV-visible red-shift and a color change of colorless to pink. Moreover, toward zinc ion, the HBP showed an obvious fluorescence turn-on response. The binding ratio of the HBP to cobalt and zinc was a 2 to 1 for both ions. The detection limits were found to be 10 nM for Co 2+ and 18 nM for Zn 2+ . Based on UV-vis and fluorescent spectral variations, Job plots, ESI-MS, FT-IR and calculations, the binding mechanisms of the HBP toward cobalt and zinc ions were proposed.

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Naphthalimide-based Probe for the Detection of Hypochlorite in a Near-perfect Aqueous Solution

Cited by 13 publications

References 46 publications

A Naphthalimide–Sulfonylhydrazine Conjugate as a Fluorescent Chemodosimeter for Hypochlorite

A Naphthalimide–Sulfonylhydrazine Conjugate as a Fluorescent Chemodosimeter for Hypochlorite

Anthranilic Acid Schiff Base as a Fluorescent Probe for the Detection of Arsenite and Selenite: A Detailed Investigation of Analytical Parameters and Mechanism for Interaction

A Heterocyclic-based Bifunctional Sensor for Detecting Cobalt and Zinc Ion

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