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Title: Protein micropatterning using surfaces modified by self-assembled polystyrene microspheres
Authors: Yap, F.L.
Zhang, Y. 
Issue Date: 7-Jun-2005
Citation: Yap, F.L., Zhang, Y. (2005-06-07). Protein micropatterning using surfaces modified by self-assembled polystyrene microspheres. Langmuir 21 (12) : 5233-5236. ScholarBank@NUS Repository.
Abstract: A technique for micropatterning of proteins on a nonplanar surface to improve the coverage and functionality of biomolecules is demonstrated. A nonplanar microstructure is created by the self-assembly of polystyrene microspheres into an array of microwells on a silicon wafer to allow the integration of a nonplanar spot on a planar chip. After the microspheres were deposited into the microwells, they were conjugated with proteins. The curve surfaces of the microspheres present more surface area for attaching biomolecules which will increase the density of biomolecules and, hence, the sensitivity for detection. Moreover, proteins immobilized on a curved surface can retain their native structures and function better than on a planar surface because of a smaller area of interaction between the protein and the substrate. Patterning of biomolecules was tested with two model fluorescent proteins. The results show that precise patterning of biomolecules on a nonplanar spot can be achieved with this technique. © 2005 American Chemical Society.
Source Title: Langmuir
ISSN: 07437463
DOI: 10.1021/la050454f
Appears in Collections:Staff Publications

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