journal article·2006-06Open access

Patterning of Chemical Gradients with Submicrometer Resolution Using Edge‐Spreading Lithography

Matthias Geissler, Preeti Chalsani, Neil S. Cameron, Teodor Veres

Small· Volume 2· Issue 6

Abstract

Edge-spreading lithography is used to assemble mercaptohexadecanoic acid (MHA) and octadecanethiol (ODT) molecules into gradient monolayer ring patterns on a Au substrate. Co-diffusion of both thiols over the surface of immobilized silica beads introduces a partial separation of the two species. Self-assembled monolayers (SAMs) with a gradient structure emerge from the edges of each bead on the Au substrate, as revealed by lateral force microscopy and the template-assisted assembly of nanoparticles (see picture).
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Research context

OpenAlex topics: Nanofabrication and Lithography Techniques · Molecular Junctions and Nanostructures · Gold and Silver Nanoparticles Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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