Laser-Assisted Adsorption by Photobleaching
2014
Abstract This chapter presents a simple method to produce substrate-bound protein patterns of micrometer resolution. Our approach uses only low power visible lasers and commercially available reagents to obtain arbitrary patterns of wide concentration range. We provide useful and detailed information on how to assemble the experimental setup to create engineered cell culture substrates using laser scanning or widefield illumination modalities. A protocol that includes the biochemistry, the optics, and the computer programming needed to fabricate functional micropatterns of single and multiple components is explained for readers without experience in optical engineering. Finally, we introduce a novel widefield illumination scheme for fabricating large surface patterns as well as how to make simple patterns using a standard commercial confocal microscope.
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