Cañamares M V, Garcia-Ramos J V, Sanchez-Cortes S, Castillejo M, Oujja M
Instituto de Estructura de la Materia, CSIC, Serrano, 121, 28006 Madrid, Spain.
J Colloid Interface Sci. 2008 Oct 1;326(1):103-9. doi: 10.1016/j.jcis.2008.06.052. Epub 2008 Jul 3.
Different Ag nanoparticles were prepared by four different methods (chemical reduction with trisodium citrate, chemical reduction with hydroxylamine hydrochloride, laser ablation and laser in situ photoreduction) to compare their applicability in surface-enhanced Raman scattering (SERS), their stability and other interfacial characteristics such as the pH, surface availability and the surface potential. This study was conducted by using the anthraquinone dye alizarin as a molecular probe since this molecule is able to be adsorbed onto the metal through three different forms, which relative proportions depend on the interfacial properties of the exposed metal surfaces.
通过四种不同方法（用柠檬酸钠进行化学还原、用盐酸羟胺进行化学还原、激光烧蚀和激光原位光还原）制备了不同的银纳米颗粒，以比较它们在表面增强拉曼散射（SERS）中的适用性、稳定性以及其他界面特性，如pH值、表面可及性和表面电位。本研究使用蒽醌染料茜素作为分子探针，因为该分子能够以三种不同形式吸附到金属上，其相对比例取决于暴露金属表面的界面性质。
