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Issue 34, 2010
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A plasmonic biosensor array by block copolymer lithography

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Abstract

Highly uniform and dense, hexagonal noble metal nanoparticle arrays were achieved on large-area transparent glass substrates via scalable, parallel processing of block copolymer lithography. Exploring their localized surface plasmon resonance (LSPR) characteristics revealed that the Ag nanoparticle array displayed a UV-vis absorbance spectrum sufficiently narrow and intense for biosensing application. A highly-sensitive, label-free detection of prostate cancer specific antibody (anti-PSA) with sub-ng ml−1 level detection limit (0.1∼1 ng ml−1) has been accomplished with the plasmonic nanostructure. Our approach offers a valuable route to a low-cost, manufacture-scale production of plasmonic nanostructures, potentially useful for various photonic and optoelectronic devices.

Graphical abstract: A plasmonic biosensor array by block copolymer lithography

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Publication details

The article was received on 04 May 2010, accepted on 05 Jun 2010 and first published on 28 Jul 2010


Article type: Paper
DOI: 10.1039/C0JM01319F
Citation: J. Mater. Chem., 2010,20, 7241-7247
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    A plasmonic biosensor array by block copolymer lithography

    D. O. Shin, J. Jeong, T. H. Han, C. M. Koo, H. Park, Y. T. Lim and S. O. Kim, J. Mater. Chem., 2010, 20, 7241
    DOI: 10.1039/C0JM01319F

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