Facile chemical routes to mesoporous silver substrates for SERS analysis

Elina A. Tastekova, Alexander Y. Polyakov, Anastasia E. Goldt, Alexander V. Sidorov, Alexandra A. Oshmyanskaya, Irina V. Sukhorukova, Dmitry V. Shtansky, Wolgang Grünert, Anastasia V. Grigorieva

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    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 spongelike 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 × 105) and an anti-ischemic mildronate drug (meldonium; enhancement factor of ~102) that is known for its ability to increase the endurance performance of athletes.

    Original languageEnglish
    Pages (from-to)880-889
    Number of pages10
    JournalBeilstein Journal of Nanotechnology
    Volume9
    Issue number1
    DOIs
    Publication statusPublished - 2018

    Keywords

    • Meldonium
    • mesoporous silver substrates
    • Silver oxide
    • Surface-enhanced Raman spectroscopy

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