Phototocatalytic Lithography of Poly(propylene sulfide) Block Copolymers: Toward High-Throughput Nanolithography for Biomolecular Arraying Applications
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 on the micrometer and submicrometer scales. We confirm chemical patterning with imaging ToF-SIMS and low-voltage SEM. Biomolecular patterning on micrometer and submicrometer scales is demonstrated with proteins, protein-linked beads. and fluorescently labeled proteins.
Keywords: Dip-Pen Nanolithography ; Photocatalytic Lithography ; Nanoimprint Lithography ; Biological Applications ; Electron-Microscopy ; Triblock Copolymer ; Titanium-Dioxide ; Surfaces ; Polymer ; Cells
Record created on 2010-11-30, modified on 2016-08-09