Design of Metal Aerogels‐Based 3D SERS Substrates by Gentle Compression

Abstract Metal aerogels (MAs) are emerging all‐nanometal‐structured self‐standing porous materials featuring exceptional performances in diverse fields. They have recently been adopted as 3D surface‐enhanced Raman scattering (SERS) substrates, while the less utilization of the unique porous structure leads to limited performance. Here, a fascinating compression‐mediated regulation strategy is presented to largely boost the SERS performance of Au–Ag aerogels. By gently pressing, both the density of hot spots and the inter‐ligament distance can be efficiently modulated, thus enabling to flexibly manipulate the SERS properties of MAs. On this basis, a record‐high misfocus tolerance (∼8.8 mm), low detection limit (down to 0.1 nM), high stability (>1 month), reusability, and multiplex detection ability are concurrently realized. This study may point out a new direction for engineering 3D SERS substrates with tunable and exceptional performance.

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Institutions

Publication Details

Journal
Advanced Functional Materials
Published
2024-08-22
DOI
https://doi.org/10.1002/adfm.202412006
Citations
11
Primary Topic
Gold and Silver Nanoparticles Synthesis and Applications
Type
article
Field-Weighted Citation Impact
1.30

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article

Design of Metal Aerogels‐Based 3D SERS Substrates by Gentle Compression

Yue Hu, Weigao Xu, Yueqi Li, Ran Du et al.
11 citations
Advanced Functional Materials
Gold and Silver Nanoparticles Synthesis and Applications
1.30
article

Design of Metal Aerogels‐Based 3D SERS Substrates by Gentle Compression

Yue Hu, Weigao Xu, Yueqi Li, Ran Du, René Hübner, Lin Zhou, Yu Liu, Chunlei Long, Dejun Lin, Yanli Li, Shujin Zhou, Geng Xue
article en
11 citations

Abstract

Abstract Metal aerogels (MAs) are emerging all‐nanometal‐structured self‐standing porous materials featuring exceptional performances in diverse fields. They have recently been adopted as 3D surface‐enhanced Raman scattering (SERS) substrates, while the less utilization of the unique porous structure leads to limited performance. Here, a fascinating compression‐mediated regulation strategy is presented to largely boost the SERS performance of Au–Ag aerogels. By gently pressing, both the density of hot spots and the inter‐ligament distance can be efficiently modulated, thus enabling to flexibly manipulate the SERS properties of MAs. On this basis, a record‐high misfocus tolerance (∼8.8 mm), low detection limit (down to 0.1 nM), high stability (>1 month), reusability, and multiplex detection ability are concurrently realized. This study may point out a new direction for engineering 3D SERS substrates with tunable and exceptional performance.

Advanced Functional MaterialsVol. 35(1)
Jiangnan University (CN), Beijing Institute of Technology (CN), Wenzhou University (CN), Tangshan College (CN), Helmholtz-Zentrum Dresden-Rossendorf (DE), Nanjing University (CN)
National Natural Science Foundation of China, Bundesministerium für Bildung und Forschung, Natural Science Foundation of Beijing Municipality, Beijing Institute of Technology, Helmholtz-Zentrum Dresden-Rossendorf, Natural Science Foundation of Zhejiang Province
Openalex Percentile: Top 21%
Gold and Silver Nanoparticles Synthesis and Applications
1.30
DOIOpen Access PDFOpenAlex
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