A SERS-activated nanocrystalline Pd substrate and its nanopatterning leading to biochip fabrication

被引：32

作者：

Bhuvana, Thiruvelu

Kulkarni, Giridhar U.

机构：

[1] Indian Inst Sci, Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India

[2] Indian Inst Sci, Jawaharlal Nehru Ctr Adv Sci Res, DST Unit Nanosci, Bangalore 560064, Karnataka, India

来源：

SMALL | 2008年 / 4卷 / 05期

关键词：

electron-beam lithography; nanocrystalline materials; palladium; patterning; Raman spectroscopy;

D O I：

10.1002/smll.200701075

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanocrystalline metallic Pd films have been produced by thermolysis of Pd hexadecanethiolate deposited on a Si surface. The particle size was in the range of 50-60 nm based on electron and atomic force microscopy. The Pd surface produced was found to be surface-enhanced Raman scattering (SERS) active with an enhancement factor of approximate to 10(5). The electron-resist behavior of Pd thiolate is exploited in conceptualizing a prototype chip with patterned Pd regions that are SERS active, called "SERS bits", which host different biomolecules.

引用

页码：670 / 676

页数：7

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