Maskless, Reusable Visible-Light Direct-Write Stamp for Microscale Surface Patterning.

ABSTRACT: We report a straightforward method for creating large-area, microscale resolution patterns of functional amines on self-assembled monolayers by the photoinduced local acidification of a flat elastomeric stamp enriched with photoacid. The limited diffusivity of the photoactivated merocyanine acid in poly(dimethylsiloxane) (PDMS) enabled to confine efficient deprotection of N-tert-butyloxycarbonyl amino group (N-Boc) to line widths below 10 μm. The experimental setup is very simple and is built around the conventional HD-DVD optical pickup. The method allows cost-efficient, maskless, large-area chemical patterning while avoiding potentially cytotoxic photochemical reaction products. The activation of the embedded photoacid occurs within the stamp upon illumination with t

SUBMITTER: Javorskis T 

PROVIDER: S-EPMC11008783 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature