Untying Surface Chemistry and Emulsion Stability to Construct Multifunctional Pickering Emulsion SERS Sensors for Pretreatment-Free Quantitative Analysis in Bio-Media.

ABSTRACT: Plasmonic Pickering emulsions have immense potential as enhancing substrates in surface-enhanced Raman spectroscopy (SERS). Traditionally, the functional nanoparticles also act as the emulsion stabilizer, so that their surface chemistry is tied directly to emulsion stability. However, this has meant that adsorption of molecules to the plasmonic nanoparticles destabilizes the emulsion system, which severely limits the use of Pickering emulsions in SERS. Here, we used a dual-particle approach to create plasmonic Pickering emulsions, in which emulsion stability is maintained solely by one type of nanoparticle so that the other could be used to provide functionality without constraints to its surface properties. This allowed us to construct multiwalled carbon nanotubes-Au@Prussian blue Pickeri

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC12302603 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature