Recognition-directed orthogonal self-assembly of polymers and nanoparticles on patterned surfaces.
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.
Xu
Hao
H
Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA.
Hong
Rui
R
Lu
Tongxiang
T
Uzun
Oktay
O
Rotello
Vincent M
VM
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
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