Hydroxythiophene-bearing benzothiazole: Selective and sensitive detection of periodate and its application as security ink

Kyeong Im Hong; Woo Hyeok Choi; Woo Dong Jang

doi:10.1016/j.dyepig.2018.11.026

Hydroxythiophene-bearing benzothiazole: Selective and sensitive detection of periodate and its application as security ink

Kyeong Im Hong, Woo Hyeok Choi, Woo Dong Jang

Department of Chemistry

Research output: Contribution to journal › Article

6 Citations (Scopus)

Abstract

A hydroxythiophene-bearing benzothiazole (HB) in phosphate buffer solution showed strong yellow fluorescence emission, which selectively and sensitively decreased by addition of IO₄ ⁻. The reaction between HB and IO₄ ⁻ dramatically accelerated by UV irradiation. The fluorescence emission of HB was gradually recovered upon thermal heating of the IO₄ ⁻-adducted product, indicating IO₄ ⁻ release. Using these properties, the solution containing HB and IO₄ ⁻ has been used as a fluorescence-based security ink.

Original language	English
Pages (from-to)	984-989
Number of pages	6
Journal	Dyes and Pigments
Volume	162
DOIs	https://doi.org/10.1016/j.dyepig.2018.11.026
Publication status	Published - 2019 Mar

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Process Chemistry and Technology

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Hong, K. I., Choi, W. H., & Jang, W. D. (2019). Hydroxythiophene-bearing benzothiazole: Selective and sensitive detection of periodate and its application as security ink. Dyes and Pigments, 162, 984-989. https://doi.org/10.1016/j.dyepig.2018.11.026

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abstract = "A hydroxythiophene-bearing benzothiazole (HB) in phosphate buffer solution showed strong yellow fluorescence emission, which selectively and sensitively decreased by addition of IO4 −. The reaction between HB and IO4 − dramatically accelerated by UV irradiation. The fluorescence emission of HB was gradually recovered upon thermal heating of the IO4 −-adducted product, indicating IO4 − release. Using these properties, the solution containing HB and IO4 − has been used as a fluorescence-based security ink.",

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AU - Choi, Woo Hyeok

AU - Jang, Woo Dong

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AB - A hydroxythiophene-bearing benzothiazole (HB) in phosphate buffer solution showed strong yellow fluorescence emission, which selectively and sensitively decreased by addition of IO4 −. The reaction between HB and IO4 − dramatically accelerated by UV irradiation. The fluorescence emission of HB was gradually recovered upon thermal heating of the IO4 −-adducted product, indicating IO4 − release. Using these properties, the solution containing HB and IO4 − has been used as a fluorescence-based security ink.

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