Synthesis and Characterization of Simple Self-Assembling, Nanoporous Monolayer Assemblies: A New Strategy for Molecular Recognition
Abstract
Composite monolayer films spontaneously adsorb onto the surface of Au from an ethanolic mixture of two mercaptans to form a nanoporous surface. The monolayers consist of an electron transfer-retarding n-alkanethiol framework, which passivates the Au surface, and a much shorter aromatic mercaptan which induces molecule-sized defects within the passivating framework. Electrochemical experiments indicate that the chemical nature of the template and the template/framework ratio of the deposition solution control the size, number and chemical characteristics of the defects. For example, 4-hydroxythiophenol/1- hexadecanethiol mixed monolayers yield assemblies that admit Ru(NH3)6(3+) probe molecules but not Fe(CN)6(3-).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 06, 1992
- Accession Number
- ADA253035
Entities
People
- Orawon Chailapakul
- R. M. Crooks
Organizations
- University of New Mexico