Plataformas Renováveis para SERS via Eletrodeposição de Ouro em Templates Porosos

SERS substrates have been subject of important and voluminous research, with great advances concerning detection limit of targets and enhancement factors, important features for analytical performance. Notwithstanding the amount of effective substrates, most still require costly and extensive synthetic steps [1]. Herein it is presented a simple, low cost and quick alternative to produce SERS platforms by controlled electrodeposition of gold on PMMA porous templates [2], with potential recyclability. By gold plating rough agglomerated nanoparticles inside the template's pores, enhanced Raman signal is obtained and chemical cleaning may be employed to eliminate adsorbed molecules, Figure 1. An efficient control of the morphology is intrinsic for adequate and reproducible Raman signal, in this sense, a platform presenting this characteristic combined to a chemical and mechanical stability and also suitable for repeated usage after a single-step chemical cleaning may result in a promising advance for future optimized substrates.