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Assembly of Nanoparticles using Surface-Grafted Orthogonal Polymer Gradients

✍ Scribed by Rajendra R. Bhat; Michael R. Tomlinson; Jan Genzer

Book ID
102492467
Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
205 KB
Volume
25
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: We report on preparing poly(2‐(dimethylamino)ethyl methacrylate) (PDMAEMA) gradient substrate, wherein molecular weight (MW) and grafting density (σ) of the surface‐anchored PDMAEMA chains vary continuously in two orthogonal directions. Such a specimen is used to control the assembly of charged gold nanoparticles. Increasing MW and σ of the grafted PDMAEMA cause an enhanced binding of the nanoparticles to PDMAEMA, thus leading to an orthogonal number density gradient of surface‐bound gold nanoparticles.

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