Colorimetric sensing of cyanide anion in aqueous media with a fluorescein–spiropyran conjugate

Sumiya, Shigehiro; Doi, Takayuki; Shiraishi, Yasuhiro; Hirai, Takayuki

doi:10.1016/j.tet.2011.10.097

Cited by 51 publications

(19 citation statements)

References 39 publications

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“…2a, the N-methylated SP could selectively combine with CN À via a nucleophilic interaction to form a complex in a 1 : 1 stoichiometry. 51 Not only the colorimetric approaches but also fluorescent sensors were designed based on the simple SP. Processed in a water/MeCN solution, the sensor could detect CN À in the range of 1.7-300 mM.…”

Section: Photochromic Sensors For Anionsmentioning

confidence: 99%

Photochromic sensors: a versatile approach for recognition and discrimination

et al. 2015

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Photochromic sensors are widely used in detecting and monitoring analytes. Due to the photoswitchable properties, photochromic sensors show advantages in providing more recognition states and sensing information, and thus better sensitivity to external stimulations. Via reasonable design of photochromic sensors with various ionophores, dyes, platforms and metallic complexations, it is promising to achieve visual, sensitive and high-throughput detection. In this review, we summarized the applications of photochromic sensors in the areas of specific recognition and multi-analyte discrimination, based on their isomerization to light, as well as pH, temperature, solvent, etc. Specially, the multi-analyte determination was introduced, which has aroused extensive interest in recent years.

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Section: Photochromic Sensors For Anionsmentioning

confidence: 99%

Photochromic sensors: a versatile approach for recognition and discrimination

et al. 2015

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“…[29][30][31][32][33] Consequently,o rganic receptors with neutral binding, sites such as urea/thiourea, amide pyrrole, aminopyrrole, indole andh ydroxyl groups, [27,28,[34][35][36][37][38][39][40][41][42][43][44][45][46] with cationic units, such as ammonium, quinolinium, imidazolium andg uanidinium salts, [47][48][49][50][51] and sensors with active methylene groups [52][53][54] have been used for anion detection. In addition, anion-induced reactions, such as desilylation [55,56] and nucleophilic interactions, [57][58][59][60][61] have also been used for the anion detection. Many anion sensors have been utilised for significant applications, such as detection of cancer cells, [62] determination of percentage composition in binary solvent mixtures, [63] detection of water contaminants, [53,54] anion-detecting strips [64,65] and smart molecules.…”

Section: Anion Sensorsmentioning

confidence: 99%

ChemInform Abstract: Anion Sensors as Logic Gates: A Close Encounter

et al. 2016

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“…The cyanide ion can affect numerous body functions, including those of the vascular, visual, central nervous, cardiac, endocrine, and metabolic systems; exposure leads to vomiting, convulsions, the loss of consciousness and, eventually, death [32,33]. Accordingly, a number of fluorescent chemosensors and chemodosimeters that can selectively sense the cyanide ion have been developed [34,35]. Therefore, the selective and sensitive detection of cyanide is very important for environmental protection, food analysis and even anti-terrorism [36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%