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Issue 15, 2009
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A conventional route to scalable morphology-controlled regular structures and their superhydrophobic/hydrophilic properties for biochips application

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Abstract

We use a conventional and straightforward route to fabricate scalable morphology-controlled regular structures. This route is based on the etching of PDMS microlens array in CF4 and CF4/O2 plasma. PDMS microlens array can be changed to regularly isolated microdot structures array in CF4 plasma. Microbowl shaped structures array can be reached in CF4/O2 plasma. Moreover, a set of structures after CF4 plasma treatment display superhydrophobicity, while a set of structures after CF4/O2 plasma treatment present hydrophilicity. DNA molecules can be readily enriched on the hydrophilic surface. We believe that the regular structure array surfaces provide a useful inspiration towards biomolecular detection and transportation in biochips.

Graphical abstract: A conventional route to scalable morphology-controlled regular structures and their superhydrophobic/hydrophilic properties for biochips application

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Publication details

The article was received on 23 Mar 2009, accepted on 11 Jun 2009 and first published on 16 Jun 2009


Article type: Communication
DOI: 10.1039/B905804D
Citation: Lab Chip, 2009,9, 2140-2144

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    A conventional route to scalable morphology-controlled regular structures and their superhydrophobic/hydrophilic properties for biochips application

    H. Ren, X. Chen, X. Huang, M. Im, D. Kim, J. Lee, J. Yoon, N. Gu, J. Liu and Y. Choi, Lab Chip, 2009, 9, 2140
    DOI: 10.1039/B905804D

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