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2-D array photonic crystal sensing motif

Zhang, JT and Wang, L and Luo, J and Tikhonov, A and Kornienko, N and Asher, SA (2011) 2-D array photonic crystal sensing motif. Journal of the American Chemical Society, 133 (24). 9152 - 9155. ISSN 0002-7863

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We have developed the first high-diffraction-efficiency two-dimensional (2-D) photonic crystals for molecular recognition and chemical sensing applications. We prepared close-packed 2-D polystyrene particle arrays by self-assembly of spreading particle monolayers on mercury surfaces. The 2-D particle arrays amazingly diffract 80% of the incident light. When a 2-D array was transferred onto a hydrogel thin film showing a hydrogel volume change in response to a specific analyte, the array spacing was altered, shifting the 2-D array diffraction wavelength. These 2-D array photonic crystals exhibit ultrahigh diffraction efficiencies that enable them to be used for visual determination of analyte concentrations. © 2011 American Chemical Society.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Zhang, JT
Wang, L
Luo, J
Tikhonov, A
Kornienko, N
Asher, SAasher@pitt.eduASHER
Date: 22 June 2011
Date Type: Publication
Journal or Publication Title: Journal of the American Chemical Society
Volume: 133
Number: 24
Page Range: 9152 - 9155
DOI or Unique Handle: 10.1021/ja201015c
Schools and Programs: Dietrich School of Arts and Sciences > Chemistry
Refereed: Yes
ISSN: 0002-7863
MeSH Headings: Chemistry Techniques, Analytical--instrumentation; Hydrogels; Hydrogen-Ion Concentration; Photons; Polymers--chemistry; Surface Properties
PubMed ID: 21604702
Date Deposited: 13 Feb 2013 16:04
Last Modified: 02 Feb 2019 16:58


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