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Reference type: Journal
Authors: Orozco J, CortÚs A, Cheng GZ, Sattayasamitsathit S, Gao W, Feng XM, Shen YF, Wang J
Article Title: Molecularly Imprinted Polymer-Based Catalytic Micromotors for Selective Protein Transport.
Publication date: 2013
Journal: Journal of the American Chemical Society
Volume: 135
Issue: (14)
Page numbers: 5336-5339.
DOI: 10.1021/ja4018545

Abstract: We demonstrate an attractive nanomachine 'capture and transport' target isolation strategy based on molecularly imprinted polymers (MIPs). MIP-based catalytic microtubular engines are prepared by electropolymerization of the outer polymeric layer in the presence of the target analyte (template). Tailor-made selective artificial recognition sites are thus introduced into the tubular microtransporters through complementary nanocavities in the outer polymeric layer. The new microtransporter concept is illustrated using bilayer poly(3,4-ethylenedioxythiophene) (PEDOT)/Pt-Ni microengines and fluorescein isothiocyanate (FITC)-labeled avidin (Av-FITC) as the template. The avidin-imprinted polymeric layer selectively concentrates the fluorescent-tagged protein target onto the moving microengine without the need for additional external functionalization, allowing 'on-the-fly' extraction and isolation of Av-FITC from raw serum and saliva samples along with real-time visualization of the protein loading and transport. The new micromachine-MIP-based target isolation strategy can be extended to the capture and transport of other important target molecules, leading toward diverse biomedical and environmental applications
Template and target information: protein, avidin, fluorescein isothiocyanate (FITC)-labeled avidin, Av-FITC


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