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Reference type: Journal
Authors: Ikawa T, Kato Y, Yamada T, Shiozawa M, Narita M, Mouri M, Hoshino F, Watanabe O, Tawata M, Shimoyama H
Article Title: Virus-Templated Photoimprint on the Surface of an Azobenzene-Containing Polymer.
Publication date: 2010
Journal: Langmuir
Volume: 26
Issue: (15)
Page numbers: 12673-12679.
DOI: 10.1021/la101229p

Abstract: A photoimprint-based immobilization process is presented for cylindrical viruses on the surface of an azobenzene-bearing acrylate polymer by using atomic force microscopy (AFM). Tobacco mosaic virus (TMV), 18 nm in diameter and ca. 300 nm in length, was employed as a model virus. First, a droplet of an aqueous solution containing TMV was placed on the acrylate polymer surface. After drying the droplet, the polymer surface was irradiated with light at a wavelength of 470 nm from blue-light-emitting diodes. Finally, the surface was washed by aqueous solution with detergents. The polymer surface was observed at each step by AFM. TMV was shown to embed itself gradually on the polymer surface during photoirradiation in a time scale of tens of minutes because of the formation of the surface groove complementary to the shape of TMV. Analysis of immobilization efficiency of TMV on the polymer surface by the immunological enzyme luminescence indicated that efficiency increased proportional to the photoirradiation time. In these experimental conditions, the absorption band of the azobenzene moiety remained constant before and after the photoirradiation. These results show that TMV is physically held on the complementary groove formed on the polymer surface by the photoirradiation
Template and target information: tobacco mosaic virus, TMV

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