Covalently cross-linked multilayer thin films composed of diazoresin and brilliant yellow for an optical pH sensor

Yuya Egawa; Ryosuke Hayashida; Jun ichi Anzai

doi:10.1016/j.polymer.2007.01.065

Covalently cross-linked multilayer thin films composed of diazoresin and brilliant yellow for an optical pH sensor

Yuya Egawa, Ryosuke Hayashida, Jun ichi Anzai

PHA - Molecular Pharmaceutical Science

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

12 Citations (Scopus)

Abstract

The multilayered thin films composed diazoresin (DR) and brilliant yellow (BY) were fabricated by a layer-by-layer (LbL) deposition technique, and the ionic bonds between diazonium ion in DR and sulfonate residues in BY were converted to covalent bonds by UV light irradiation. The cross-linking between BY and DR prevented BY from desorption even in a pH 13 solution. The cross-linked (DR/BY)₁₀DR film exhibited pH-dependent absorption spectra in pH 9-13, and the response was repeatable and quick. The pH response time of the films was within a few seconds upon change from pH 9.0 to 13.0, and ca. 40 s upon change from pH 13.0 to 9.0.

Original language	English
Pages (from-to)	1455-1458
Number of pages	4
Journal	Polymer
Volume	48
Issue number	6
DOIs	https://doi.org/10.1016/j.polymer.2007.01.065
Publication status	Published - 2007 Mar 8

Keywords

Diazoresin
Layer-by-layer
pH sensor

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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title = "Covalently cross-linked multilayer thin films composed of diazoresin and brilliant yellow for an optical pH sensor",

abstract = "The multilayered thin films composed diazoresin (DR) and brilliant yellow (BY) were fabricated by a layer-by-layer (LbL) deposition technique, and the ionic bonds between diazonium ion in DR and sulfonate residues in BY were converted to covalent bonds by UV light irradiation. The cross-linking between BY and DR prevented BY from desorption even in a pH 13 solution. The cross-linked (DR/BY)10DR film exhibited pH-dependent absorption spectra in pH 9-13, and the response was repeatable and quick. The pH response time of the films was within a few seconds upon change from pH 9.0 to 13.0, and ca. 40 s upon change from pH 13.0 to 9.0.",

keywords = "Diazoresin, Layer-by-layer, pH sensor",

author = "Yuya Egawa and Ryosuke Hayashida and Anzai, {Jun ichi}",

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doi = "10.1016/j.polymer.2007.01.065",

language = "English",

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T1 - Covalently cross-linked multilayer thin films composed of diazoresin and brilliant yellow for an optical pH sensor

AU - Egawa, Yuya

AU - Hayashida, Ryosuke

AU - Anzai, Jun ichi

PY - 2007/3/8

Y1 - 2007/3/8

N2 - The multilayered thin films composed diazoresin (DR) and brilliant yellow (BY) were fabricated by a layer-by-layer (LbL) deposition technique, and the ionic bonds between diazonium ion in DR and sulfonate residues in BY were converted to covalent bonds by UV light irradiation. The cross-linking between BY and DR prevented BY from desorption even in a pH 13 solution. The cross-linked (DR/BY)10DR film exhibited pH-dependent absorption spectra in pH 9-13, and the response was repeatable and quick. The pH response time of the films was within a few seconds upon change from pH 9.0 to 13.0, and ca. 40 s upon change from pH 13.0 to 9.0.

AB - The multilayered thin films composed diazoresin (DR) and brilliant yellow (BY) were fabricated by a layer-by-layer (LbL) deposition technique, and the ionic bonds between diazonium ion in DR and sulfonate residues in BY were converted to covalent bonds by UV light irradiation. The cross-linking between BY and DR prevented BY from desorption even in a pH 13 solution. The cross-linked (DR/BY)10DR film exhibited pH-dependent absorption spectra in pH 9-13, and the response was repeatable and quick. The pH response time of the films was within a few seconds upon change from pH 9.0 to 13.0, and ca. 40 s upon change from pH 13.0 to 9.0.

KW - Diazoresin

KW - Layer-by-layer

KW - pH sensor

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Covalently cross-linked multilayer thin films composed of diazoresin and brilliant yellow for an optical pH sensor

Abstract

Keywords

ASJC Scopus subject areas

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