ScholarWorks@성균관대학교

초록

Plasmonic nanopillars are highly promising substrates for surface-enhanced Raman scattering (SERS) because of their simple fabrication process, cost-effectiveness, and efficient nanogap formation. These characteristics render them ideal for biosensing and environmental monitoring. This review highlights the advancements in SERS substrates utilizing nanopillars fabricated via electrochemical methods with a focus on strategies to enhance the sensitivity, stability, and reproducibility. Key approaches include the electrochemical fabrication of silver nanopillars and introduction of their growth mechanisms. To address the oxidation issues of Ag nanopillars, bimetallic nanopillars developed through galvanic replacement are discussed, along with hybrid nanostructures designed to increase the nanogap density and electric field amplification. These structures have demonstrated excellent detection capabilities for biomarkers, such as amyloid beta and uric acid, as well as environmental toxins, such as cadmium, mercury, and thiram. In conclusion, electrochemical nanopillars offer a versatile, scalable, and cost-effective platform for high-performance SERS sensors, strongly supporting their potential practical applications in biosensing and environmental monitoring. © The Korean Sensors Society.

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