Study on various fluorescein derivatives as pH sensors

Ha Na Kim; K. M.K. Swamy; Juyoung Yoon

doi:10.1016/j.tetlet.2011.02.076

Study on various fluorescein derivatives as pH sensors

Ha Na Kim, K. M.K. Swamy, Juyoung Yoon

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Various fluorescein derivatives were examined as fluorescent pH sensors. Fluorescein derivatives bearing benzylic amine moieties displayed opposite fluorescent changes compared to those of simple fluorescein derivatives upon pH changes. Photo-induced electron transfer (PET) mechanism controls the fluorescent changes of these derivatives. In this Letter, modulations of pK _a values were successfully demonstrated through variations of substituent groups.

Original language	English
Pages (from-to)	2340-2343
Number of pages	4
Journal	Tetrahedron Letters
Volume	52
Issue number	18
DOIs	https://doi.org/10.1016/j.tetlet.2011.02.076
State	Published - 4 May 2011

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation (NRF) ( 2010-0018895 ), the Converging Research Center Program through the Ministry of Education, Science and Technology ( 2010K001202 ). Mass spectral data were obtained from the Korea Basic Science Institute (Daegu) on a Jeol JMS 700 high resolution mass spectrometer.

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author = "Kim, {Ha Na} and Swamy, {K. M.K.} and Juyoung Yoon",

note = "Funding Information: This work was supported by the National Research Foundation (NRF) ( 2010-0018895 ), the Converging Research Center Program through the Ministry of Education, Science and Technology ( 2010K001202 ). Mass spectral data were obtained from the Korea Basic Science Institute (Daegu) on a Jeol JMS 700 high resolution mass spectrometer. ",

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AU - Swamy, K. M.K.

AU - Yoon, Juyoung

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Y1 - 2011/5/4

N2 - Various fluorescein derivatives were examined as fluorescent pH sensors. Fluorescein derivatives bearing benzylic amine moieties displayed opposite fluorescent changes compared to those of simple fluorescein derivatives upon pH changes. Photo-induced electron transfer (PET) mechanism controls the fluorescent changes of these derivatives. In this Letter, modulations of pK a values were successfully demonstrated through variations of substituent groups.

AB - Various fluorescein derivatives were examined as fluorescent pH sensors. Fluorescein derivatives bearing benzylic amine moieties displayed opposite fluorescent changes compared to those of simple fluorescein derivatives upon pH changes. Photo-induced electron transfer (PET) mechanism controls the fluorescent changes of these derivatives. In this Letter, modulations of pK a values were successfully demonstrated through variations of substituent groups.

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Study on various fluorescein derivatives as pH sensors

Abstract

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