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Updated: May 8, 2026

Patterning via Optical Saturable Transitions - Fabrication and Characterization
Published on: December 11, 2014
Fabrication of unique chemical patterns and concentration gradients with visible light
Brett P Fors1, Justin E Poelma, Matthew S Menyo
1Materials Research Laboratory, California NanoSystems Institute, Materials Department, Department of Chemistry and Biochemistry, and Biomolecular Science and Engineering, University of California , Santa Barbara, California 93106, United States.
Abstract:
A modular and general method based on a photomediated ATRA reaction for the spatially controlled functionalization of surfaces with visible light is reported. The ability to control reactivity with light intensity combined with the orthogonality of ATRA chemistry allows well-defined chemically differentiated monolayers and complex nonlinear chemical concentration gradients to be easily prepared. Use of light to mediate these reactions permits spatial regulation and the generation of unique, multifunctional chemical gradients.

