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Updated: May 8, 2025
Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs
Published on: November 17, 2023
3D-printed ultrasensitive SERS substrates via photocrosslinked Pluronic F127 micellar hydrogel with citrate-reduced
Billy D Chinchin-Piñan1, Mateus P Bomediano1, Marcelo G de Oliveira1
1Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil. jelv@unicamp.br.
Abstract:
In this study, we present a rapid and reproducible approach to fabricating flexible surface-enhanced Raman spectroscopy (SERS) substrates using 3D printing technology. We developed 3D-printed ultrasensitive substrates containing metallic nanoparticles (Au or Ag), synthesized by citrate reduction and stabilized by a 3D-printed micellar hydrogel matrix formed by photocrosslinked pluronic F127. The SERS signal can be fine-tuned by adjusting water content within the printed hydrogel, and an analytical enhancement factor of up to 3 × 106 was achieved with excellent repeatability (RSD < 7.0%). These SERS substrates offer robust sensing capabilities, and this versatile fabrication strategy has significant potential for creating a wide range of plasmonic platforms.
