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  • Title: A conventional route to scalable morphology-controlled regular structures and their superhydrophobic/hydrophilic properties for biochips application.
    Author: Ren HX, Chen X, Huang XJ, Im M, Kim DH, Lee JH, Yoon JB, Gu N, Liu JH, Choi YK.
    Journal: Lab Chip; 2009 Aug 07; 9(15):2140-4. PubMed ID: 19606289.
    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.
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