A multifunctional colorimetric chemosensor for cyanide and copper(II) ions

Jo, Tae Geun; Na, Yu Jeong; Lee, Jae Jun; Lee, Myoung Mi; Lee, Sun Young; Kim, Cheal

doi:10.1016/j.snb.2015.01.093

Cited by 89 publications

(29 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, anions have attracted notable interest, owing to their various roles in clinical, environmental, and biological applications [12][13][14]. In particular, cyanide has been extensively used in numerous territories like synthetic fiber, gold mining, resin industries, and metallurgy [15][16][17][18]. Thus, the voluminous usage of cyanide is ineludible, and numerous industries yield about 140 k tons/year of cyanide [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

A Novel Thiophene-Based Fluorescent Chemosensor for the Detection of Zn2+ and CN−: Imaging Applications in Live Cells and Zebrafish

Kim

Yun

Chae

et al. 2019

Sensors

Self Cite

View full text Add to dashboard Cite

A novel fluorescent turn-on chemosensor DHADC ((E)-3-((4-(diethylamino)-2hydroxybenzylidene)amino)-2,3-dihydrothiophene-2-carboxamide) has been developed and used to detect Zn 2+ and CN − . Compound DHADC displayed a notable fluorescence increase with Zn 2+ . The limit of detection (2.55 ± 0.05 µM) for zinc ion was far below the standard (76 µM) of the WHO (World Health Organization). In particular, compound DHADC could be applied to determine Zn 2+ in real samples, and to image Zn 2+ in both HeLa cells and zebrafish. Additionally, DHADC could detect CN − through a fluorescence enhancement with little inhibition with the existence of other types of anions. The detection processes of compound DHADC for Zn 2+ and CN − were demonstrated with various analytical methods like Job plots, 1 H NMR titrations, and ESI-Mass analyses.

show abstract

Section: Introductionmentioning

confidence: 99%

A Novel Thiophene-Based Fluorescent Chemosensor for the Detection of Zn2+ and CN−: Imaging Applications in Live Cells and Zebrafish

Kim

Yun

Chae

et al. 2019

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…In contrast, colorimetric methods can conveniently and easily monitor target ions with the naked eye. [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] Compared with the many known colorimetric organic molecule sensors for Zn 2+ , Cu 2+ and Hg 2+ , there are a few colorimetric chemosensors for Co 2+ . [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] Compared with the many known colorimetric organic molecule sensors for Zn 2+ , Cu 2+ and Hg 2+ , there are a few colorimetric chemosensors for Co 2+ .…”

Section: Introductionmentioning

confidence: 99%

A phthalazine-based two-in-one chromogenic receptor for detecting Co²⁺and Cu²⁺in an aqueous environment

et al. 2015

Self Cite

View full text Add to dashboard Cite

A new multifunctional and highly selective chemosensor for Co(2+) and Cu(2+) was designed and synthesized. could simultaneously detect both Co(2+) and Cu(2+) by changing its color from pale yellow to pink and to orange in a near-perfect aqueous solution. The binding modes of to Co(2+) and Cu(2+) were determined to be a 2 : 1 complexation stoichiometry through Job's plot, ESI-mass spectrometry analysis and (1)H NMR titration. The detection limits (1.5 and 2.1 μM) of for Co(2+) and Cu(2+) were lower than the DEP guidelines (1.7 μM for Co(2+)) and the WHO guidelines (31.5 μM for Cu(2+)) for drinking water. The chemosensor could be used to quantify Co(2+) and Cu(2+) in water samples. Moreover, could be used as a practical, visible colorimetric test kit for both Co(2+) and Cu(2+). The sensing mechanisms of Co(2+) and Cu(2+) by were supported by theoretical calculations.

show abstract

“…[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] Among them, diaminomaleonitrile derivation has been one of the most attractive approaches for its easy modulation, usually turn-on fluorescent response, and high selectivity to Cu 2+ . [24][25][26][27][28][29][30][31][32][33][34] And so far, most of the reports have attributed fluorescence enhancement to metal-complexation, 24,25,33,34 while direct evidences are needed for more investigations.…”

Section: Introductionmentioning

confidence: 99%

Diaminomaleonitrile-based Fluorophores as Highly Selective Sensing Platform for Cu2+

et al. 2019

View full text Add to dashboard Cite

A colorimetric and turn-on fluorescent chemodosimeter 1 based on diaminomaleonitrile was synthesized for Cu 2+ detection. It showed high selectivity and sensitivity towards Cu 2+ over the other tested metal ions. Probe 1 in acetonitrile exhibited a strong absorption band at 530 nm and weak fluorescence emission when excited at 480 nm, while the addition of Cu 2+ could lead to a 30-nm blue shift of the absorption band and a remarkable fluorescence enhancement. Moreover, the detection limit of probe 1 for Cu 2+ was calculated to be 28 nM. Quite different from the reported mechanism based on a metal-complexation induced fluorescence enhancement, the sensing mechanism was proved to be based on the Cu 2+-promoted hydrolysis reaction, which was confirmed by 1 H NMR, 13 C NMR and mass spectrum analysis. Studies on probe 2 were carried out to verify the universality of this sensing mechanism.

show abstract

A multifunctional colorimetric chemosensor for cyanide and copper(II) ions

Cited by 89 publications

References 81 publications

A Novel Thiophene-Based Fluorescent Chemosensor for the Detection of Zn2+ and CN−: Imaging Applications in Live Cells and Zebrafish

A Novel Thiophene-Based Fluorescent Chemosensor for the Detection of Zn2+ and CN−: Imaging Applications in Live Cells and Zebrafish

A phthalazine-based two-in-one chromogenic receptor for detecting Co²⁺and Cu²⁺in an aqueous environment

Diaminomaleonitrile-based Fluorophores as Highly Selective Sensing Platform for Cu2+

Contact Info

Product

Resources

About

A multifunctional colorimetric chemosensor for cyanide and copper(II) ions

Cited by 89 publications

References 81 publications

A Novel Thiophene-Based Fluorescent Chemosensor for the Detection of Zn2+ and CN−: Imaging Applications in Live Cells and Zebrafish

A Novel Thiophene-Based Fluorescent Chemosensor for the Detection of Zn2+ and CN−: Imaging Applications in Live Cells and Zebrafish

A phthalazine-based two-in-one chromogenic receptor for detecting Co2+and Cu2+in an aqueous environment

Diaminomaleonitrile-based Fluorophores as Highly Selective Sensing Platform for Cu2+

Contact Info

Product

Resources

About

A phthalazine-based two-in-one chromogenic receptor for detecting Co²⁺and Cu²⁺in an aqueous environment