Poly(2-(dimethylamino)ethyl methacrylate) Brushes with Incorporated Nanoparticles as a SERS Active Sensing Layer

被引：109

作者：

Gupta, Smrati ^{[1
]}

Agrawal, Mukesh ^{[3
]}

Conrad, Marc ^{[1
]}

Hutter, Naima Aurelia ^{[2
]}

Olk, Phillip ^{[4
]}

Simon, Frank ^{[3
]}

Eng, Lukas M. ^{[4
]}

Stamm, Manfred ^{[3
]}

Jordan, Rainer ^{[1
,2
]}

机构：

[1] Tech Univ Dresden, Dept Chem, D-01069 Dresden, Germany

[2] Tech Univ Munich, Wacker Lehrstuhl Makromol Chem, D-85747 Munich, Germany

[3] Leibniz Inst Polymerforsch Dresden eV, D-01069 Dresden, Germany

[4] Inst Angew Photophys, D-01062 Dresden, Germany

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 11期

关键词：

ENHANCED RAMAN-SCATTERING; TRANSFER RADICAL POLYMERIZATION; SILVER NANOPARTICLES; GLASSY-CARBON; METAL NANOPARTICLES; LANGMUIR-BLODGETT; GOLD NANOPARTICLE; SPECTROSCOPY; MONOLAYERS; ARRAYS;

D O I：

10.1002/adfm.201000025

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

A simple, fast, and versatile approach to the fabrication of outstanding surface enhanced Raman spectroscopy (SERS) substrates by exploiting the optical properties of the Ag nanoparticles and functional as well as organizational characteristics of the polymer brushes is reported. First, poly(2-(dimethylamino)ethyl methacrylate) brushes are synthesized directly on glassy carbon by self-initiated photografting and photopolymerization and thoroughly characterized in terms of their thickness, wettability, morphology, and chemical structure by means of ellipsometry, contact angle, AFM, and XPS, respectively. Second, Ag nanoparticles are homogeneously immobilized into the brush layer, resulting in a sensor platform for the detection of organic molecules by SERS. The surface enhancement factor (SEF) as determined by the detection of Rhodamine 6G is calculated as 6 X 10(6).

引用

页码：1756 / 1761

页数：6

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