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Protein recognition by a surface imprinted colloidal array

  • Wei Chen
  • , Wen Lei
  • , Min Xue*
  • , Fei Xue
  • , Zi Hui Meng
  • , Wei Bing Zhang
  • , Feng Qu
  • , Kenneth J. Shea
  • *Corresponding author for this work
  • Beijing Institute of Technology
  • East China University of Science and Technology
  • University of California at Irvine

Research output: Contribution to journalArticlepeer-review

Abstract

A label-free and easy-to-prepare biosensor for the fast and naked-eye detection of proteins was developed in this study. A closely packed crystalline array was self-assembled in ethanol-water (1 : 1, v/v) from the surface imprinted silica (SIS) colloid for hemoglobin bovine (Hb). The reflection of the molecular imprinted colloidal array (MICA) red shifted by 23 nm in response to 1.0 mg mL-1 of Hb at pH 7.0. Compared with the non-imprinted colloidal array (NICA), MICA has a higher selectivity towards the target protein, and can recognize the target protein via an "induced-fit" mechanism.

Original languageEnglish
Pages (from-to)7165-7169
Number of pages5
JournalJournal of Materials Chemistry A
Volume2
Issue number20
DOIs
Publication statusPublished - 28 May 2014

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

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