title: Recognition-directed orthogonal self-assembly of polymers and nanoparticles on patterned surfaces.
abstract: We demonstrate the patterning of silica substrates with thymine (Thy-PS) and positively charged N-methylpyridinium (PVMP) polymers using photolithography and the subsequent orthogonal modification of these surfaces using diaminopyridine-functionalized polystyrene (DAP-PS) and carboxylate-derivatized CdSe/ZnS core-shell nanoparticles (COO-NP) through diamidopyridine-thymine three-point hydrogen bonding and pyridinium-carboxylate electrostatic interactions, respectively. This two-component orthogonal surface modification was accomplished in a self-sorting, single-step fashion, providing a versatile tool for the rapid and efficient creation of complex materials.
authors.affiliation: Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA.
authors.forename: Hao
authors.initials: H
authors.lastname: Xu
authors.forename: Rui
authors.initials: R
authors.lastname: Hong
authors.forename: Tongxiang
authors.initials: T
authors.lastname: Lu
authors.forename: Oktay
authors.initials: O
authors.lastname: Uzun
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Rotello
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry; D008856:Microscopy, Fluorescence; D049329:Nanostructures / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011726:Pyridinium Compounds / Q000737:chemistry; D018036:Selenium Compounds / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013057:Spectrum Analysis; D013440:Sulfides / Q000737:chemistry; D013941:Thymine / Q000737:chemistry; D017967:Zinc Compounds / Q000737:chemistry
chemical_list: D019187:Cadmium Compounds; D011108:Polymers; D011726:Pyridinium Compounds; D018036:Selenium Compounds; D013440:Sulfides; D017967:Zinc Compounds; C014677:1-methylpyridinium; D012822:Silicon Dioxide; C058667:cadmium selenide; C031238:zinc sulfide; D013941:Thymine