Fabrication of hydrogels with nanoparticles as surface-enhanced Raman scattered (SERS) substrates and their application in Raman imaging | Zendy

Chaochao Wu | Zendy; Fang Li | Zendy; Feng Lv | Zendy; Pei Yao | Zendy; Minghai Bi | Zendy; Tao Xue | Zendy

Open Access

Fabrication of hydrogels with nanoparticles as surface-enhanced Raman scattered (SERS) substrates and their application in Raman imaging

Author(s) -

Chaochao Wu,

Fang Li,

Feng Lv,

Pei Yao,

Minghai Bi,

Tao Xue

Publication year - 2020

Publication title -

materials research express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.383

H-Index - 35

ISSN - 2053-1591

DOI - 10.1088/2053-1591/abd5d0

Subject(s) - crystal violet , raman scattering , raman spectroscopy , materials science , polyvinyl alcohol , rhodamine b , rhodamine 6g , rhodamine , substrate (aquarium) , nanoparticle , methylene blue , chemical engineering , nanotechnology , fabrication , self healing hydrogels , molecule , polymer chemistry , chemistry , optics , composite material , organic chemistry , catalysis , alternative medicine , oceanography , pathology , engineering , photocatalysis , fluorescence , medicine , physics , geology

A polyvinyl alcohol–silver nanoparticle (PVA–Ag NP) hydrogel was fabricated using a simple and facile method; it was used as a substrate for surface-enhanced Raman scattering (SERS). The Ag + ions dispersed uniformly in the PVA network were reduced by NaBH 4 ; this process was termed dipping method . Compared with conventional SERS substrates (e.g., colloidal suspensions), the prepared PVA–Ag NP hydrogel has prominent Raman enhancement effects for crystal violet (CV), and the detection limit was 10 −12 M. It could also help detect rhodamine B, methylene blue, and 4-mercaptobenzoic acid. In addition to SERS, the reliable 3D porous structure was utilized in the Raman imaging of CV at 1621 cm −1 in a nude mouse.

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