Phototocatalytic Lithography of Poly(Propylene Sulfide) Block Copolymers: Towards High Throughput Nanolithography for Biomolecular Arraying Applications Photocatalytic patterning of PPS-PEG

Photocatalytic lithography (PCL) is an inexpensive, fast and robust method of oxidizing surface chemical moieties to produce patterned substrates. This technique has utility in basic biological research, as well as various biochip applications. We report on porphyrin-based PCL for patterning poly(pr...

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Bibliographic Details
Published inLangmuir Vol. 25; no. 2; pp. 1238 - 1244
Main Authors Bearinger, Jane P., Stone, Gary, Hiddessen, Amy L., Dugan, Lawrence C., Wu, Ligang, Hailey, Philip, Conway, James W., Kuenzler, Tobias, Feller, Lydia, Cerritelli, Simona, Hubbell, Jeffrey A.
Format Journal Article
LanguageEnglish
Published 20.01.2009
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Summary:Photocatalytic lithography (PCL) is an inexpensive, fast and robust method of oxidizing surface chemical moieties to produce patterned substrates. This technique has utility in basic biological research, as well as various biochip applications. We report on porphyrin-based PCL for patterning poly(propylene sulfide) block copolymer films on gold substrates at the micron and sub-micron scale. We confirm chemical patterning with imaging ToF-SIMS and low voltage SEM. Biomolecular patterning on micron and submicron scales is demonstrated with proteins, protein-linked beads and fluorescently labeled proteins.
ISSN:0743-7463
1520-5827
DOI:10.1021/la802727s