Directed assembly of functional light harvesting antenna complexes onto chemically patterned surfaces

Escalante, Maryana and Maury, Pascale and Bruinink, Christiaan M. and Werf van der, Kees and Olsen, John D. and Timney, A. and Huskens, Jurriaan and Hunter, C. Neil and Subramaniam, Vinod and Otto, Cees (2008) Directed assembly of functional light harvesting antenna complexes onto chemically patterned surfaces. Nanotechnology, 19 (2). 02101-1. ISSN 0957-4484

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Abstract:	We report the directed assembly of the photosynthetic membrane proteins LH1 and LH2 isolated from the purple bacterium Rhodobacter sphaeroides onto chemically patterned substrates. Nanoimprint lithography was used to pattern discrete regions of amino- and fluoro-terminated or poly(ethylene glycol) self-assembled monolayers onto a glass substrate. Densely packed layers of assembled protein complexes were observed with atomic force microscopy. The protein complexes attached selectively to the amino-terminated regions by electrostatic interactions. Spectral images generated with a hybrid scanning probe and fluorescence microscope confirmed that the patterned proteins retained their native optical signatures.
Item Type:	Article
Copyright:	© 2008 Institute of Physics
Faculty:	Science and Technology (TNW)
Research Group:	Molecular Nanofabrication (MNF) Nano-Biophysics (NBP) Medical Cell BioPhysics (MCBP)
Link to this item:	http://purl.utwente.nl/publications/61050
Official URL:	http://dx.doi.org/10.1088/0957-4484/19/02/025101
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