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Cited by 569

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Photonic Crystal Chemical Sensors: pH and Ionic Strength

Lee, Kangtaek, Asher, Sanford A.·2000·Journal of the American Chemical Society
DOI 10.1021/ja002017n
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Abstract

Diffraction from a photonic crystal material composed of a hydrolyzed polymerized crystalline colloidal array (PCCA) can be used to sense pH and ionic strength. The PCCA is a polyacrylamide hydrogel which embeds a polystyrene crystalline colloidal array (CCA). The diffracted wavelength of the PCCA changes as the PCCA volume changes due to the alterations in the CCA lattice constant. We examine the pH and ionic strength dependence of the hydrolyzed PCCA volume by monitoring the Bragg diffracted wavelength. We also develop a zero free parameter quantitative model to describe the pH and ionic strength dependence of the hydrogel volume.

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Metadata

Authors
Lee, K., & Asher, S. A.
Venue
Journal of the American Chemical Society
Publisher
American Chemical Society (ACS)
Published
2000-09-13
Volume
122
Issue
39
Pages
9534-9537
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
DOI
10.1021/ja002017n
OpenAlex
W2068557395
Cited by
569
References
0
FWCI
4.98
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Photonic Crystal Chemical Sensors: pH and Ionic Strength. https://app.cochat.ai/papers/10.1021/ja002017n
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Lee, K., & Asher, S. A. (2000). Photonic Crystal Chemical Sensors: pH and Ionic Strength. Journal of the American Chemical Society. https://doi.org/10.1021/ja002017n

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.