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Aleksandr Ovsianikov, Zhiquan Li, Jan Torgersen, Jürgen Stampfl and Robert Liska 3D Photografting: Selective Functionalization of 3D Matrices Via Multiphoton Grafting and Subsequent Click Chemistry (Adv. Funct. Mater. 16/2012) Advanced Functional Materials 22

Version of Record online: 15 AUG 2012 | DOI: 10.1002/adfm.201290098

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This 180 μm wide, 3D pattern is produced by laser-induced immobilization of fluorescent molecules onto a polymeric matrix. On page 3429 Aleksandr Ovsianikov, Robert Liska, and co-workers report a versatile and straightforward photografting method based on photolysis of an aromatic azide via multiphoton absorption. Because multiphoton-induced reactions occur in a confined area within the laser focal spot, accurate functionalization with high spatial resolution in 3D is possible. The presented results indicate the great potential of the 3D, site-specific, function-alization method for applications in microarray-based proteome analysis, studies of cell–surface interactions, sensing applications, and drug screening.

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