期刊
ANALYTICAL CHEMISTRY
卷 81, 期 22, 页码 9233-9238出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac901333p
关键词
-
资金
- RyC (MEC, Spain)
- Spanish Ministerio de Ciencia e Innovacion [MAU007-62696, MAT2008-05755]
- Consolider Ingenio [2010-CSD2006-12]
- Xunta de Galicia [PGIDIT06TMT31402PR, 08TMT008314PR]
- EPSRC
We describe the design and fabrication of composite agarose gels, highly loaded with silver nanoparticles. Because the gel can collapse upon drying and recover when rehydrated, it can be foreseen as an excellent mechanical molecular trap that additionally gives rise to dynamic hot spots as the network volume decreases and the silver particles get close to each other, thereby generating the high electromagnetic fields that are needed for ultradetection. Additionally, as silver nanoparticles are physically trapped inside the polymer network, analytes can be washed out by dialysis when immersed in a washing solution, so that recycling can be achieved. Finally, the use of SERS for ultradetection of dichlorodiphenyl-trichloroethane (DDT) is reported for the first time, demonstrating the ability of this novel nanocomposite material to reversibly sequester nonconventional SERS analytes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据