title: A highly porous PVA dried gel with gold nanoparticles embedded in the network as a stable and ultrasensitive SERS substrate.
abstract: We confirmed that the porous PVA dried gel with GNPs embedded in the network, which can be prepared very conveniently, is a stable and ultrasensitive 3D SERS substrate. The existence of the micropores within the gel is necessary for the ultrahigh sensitivity, and embedding of GNPs in the penetrable gel results in high stability.
authors.affiliation: The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai, 200433, China.
authors.forename: Saizhen
authors.initials: S
authors.lastname: Yao
authors.forename: Changming
authors.initials: C
authors.lastname: Zhou
authors.forename: Daoyong
authors.initials: D
authors.lastname: Chen
mesh_terms: D005782:Gels; D005840:Gentian Violet / Q000032:analysis / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D016062:Porosity; D013059:Spectrum Analysis, Raman
chemical_list: D005782:Gels; D006046:Gold; D011142:Polyvinyl Alcohol; D005840:Gentian Violet