用于表面增强拉曼光谱分析的介孔银基底的简易化学合成路线。
Facile chemical routes to mesoporous silver substrates for SERS analysis.
作者信息
Tastekova Elina A, Polyakov Alexander Yu, Goldt Anastasia E, Sidorov Alexander V, Oshmyanskaya Alexandra A, Sukhorukova Irina V, Shtansky Dmitry V, Grünert Wolgang, Grigorieva Anastasia V
机构信息
Lomonosov Moscow State University, Leninskie gory 1, bld. 73, Moscow, 119991, Russia.
Kurnakov Institute for General and Inorganic Chemistry of RAS, Leninsky prospect 31, Moscow 119991, Russia.
出版信息
Beilstein J Nanotechnol. 2018 Mar 14;9:880-889. doi: 10.3762/bjnano.9.82. eCollection 2018.
Mesoporous silver nanoparticles were easily synthesized through the bulk reduction of crystalline silver(I) oxide and used for the preparation of highly porous surface-enhanced Raman scattering (SERS)-active substrates. An analogous procedure was successfully performed for the production of mesoporous silver films by chemical reduction of oxidized silver films. The sponge-like silver blocks with high surface area and the in-situ-prepared mesoporous silver films are efficient as both analyte adsorbents and Raman signal enhancement mediators. The efficiency of silver reduction was characterized by X-ray diffraction and X-ray photoelectron spectroscopy. The developed substrates were applied for SERS detection of rhodamine 6G (enhancement factor of about 1-5 × 10) and an anti-ischemic mildronate drug (meldonium; enhancement factor of ≈10) that is known for its ability to increase the endurance performance of athletes.
介孔银纳米颗粒可通过对结晶氧化银（I）进行本体还原轻松合成，并用于制备高孔隙率的表面增强拉曼散射（SERS）活性基底。通过化学还原氧化银膜成功地进行了类似的制备介孔银膜的过程。具有高表面积的海绵状银块和原位制备的介孔银膜作为分析物吸附剂和拉曼信号增强介质均十分有效。通过X射线衍射和X射线光电子能谱对银还原效率进行了表征。所开发的基底用于罗丹明6G的SERS检测（增强因子约为1 - 5×10）以及一种抗缺血药物米屈肼（美多心安；增强因子约为10），该药物以提高运动员耐力表现的能力而闻名。
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