title: Photochemical Microcontact Printing by Tetrazole Chemistry.
abstract: We developed a simple method to pattern self-assembled monolayers of tetrazole triethoxylsilane with a variety of different molecules by photochemical microcontact printing. Under irradiation, tetrazoles form highly reactive nitrile imines, which react with alkenes, alkynes, and thiols. The covalent linkage to the surface could be unambiguously demonstrated by fluorescence microscopy, because the reaction product is fluorescent in contrast to tetrazole. The modified surfaces were further analyzed by X-ray photoelectron spectroscopy (XPS), time-of-flight secondary ion mass spectrometry (ToF-SIMS), atomic force microscopy (AFM), and contact angle goniometry. Protein-repellent micropatterns, a biotin-streptavidin array, and structured polymer brushes could be fabricated with this straightforward method for surface functionalization.
authors.affiliation: Organisch-Chemisches Institut, Center for Soft Nanoscience and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster , Corrensstraße 40, 48149 Münster, Germany.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Vonhören
authors.affiliation: Organisch-Chemisches Institut, Center for Soft Nanoscience and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster , Corrensstraße 40, 48149 Münster, Germany.
authors.forename: Oliver
authors.initials: O
authors.lastname: Roling
authors.affiliation: Organisch-Chemisches Institut, Center for Soft Nanoscience and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster , Corrensstraße 40, 48149 Münster, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Buten
authors.affiliation: Physikalisches Institut, Westfälische Wilhelms-Universität Münster , Wilhelm-Klemm-Straße 10, 48149 Münster, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Körsgen
authors.affiliation: Physikalisches Institut, Westfälische Wilhelms-Universität Münster , Wilhelm-Klemm-Straße 10, 48149 Münster, Germany.
authors.forename: Heinrich F
authors.initials: HF
authors.lastname: Arlinghaus
authors.affiliation: Organisch-Chemisches Institut, Center for Soft Nanoscience and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster , Corrensstraße 40, 48149 Münster, Germany.
authors.forename: Bart Jan
authors.initials: BJ
authors.lastname: Ravoo