Si M, Zhang P
Department of Physics, Chuxiong Teachers College, 675000 Chuxiong.
Guang Pu Xue Yu Guang Pu Fen Xi. 2001 Aug;21(4):501-2.
A study on the negative charge colloid of nano-silver particles with anion and cation molecules has been done. The results of the experiment show that the negative charge colloid of nano-silver particle has no SERS effect when anion molecule adsorbed on its surface. While the cation molecule in adsorbed on its surface the SERS effect is enhanced. The SERS effects are just opposite when the two molecules separately adsorbed on the surface of the positive colloid of nano-silver particles. The paper hypothesizes that strong SERS effect can be got by using proper colloid of nano-silver particles. It is practical to develop the use of SERS.
开展了一项关于纳米银颗粒带负电荷胶体与阴离子和阳离子分子的研究。实验结果表明，当阴离子分子吸附在纳米银颗粒带负电荷胶体表面时，该胶体没有表面增强拉曼散射（SERS）效应。而当阳离子分子吸附在其表面时，SERS效应增强。当这两种分子分别吸附在纳米银颗粒正电荷胶体表面时，SERS效应则相反。该论文推测，通过使用合适的纳米银颗粒胶体可以获得较强的SERS效应。开发SERS的应用具有实际意义。
