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Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
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Bioinspired Turing-Nanoarchitected Needle for Solid Matrices Analysis: A Universal Platform Enabling Dual-Scale SERS

Yang Jin1, Zhenyang Hu1, Hongwen Xu1

  • 1State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China.

Advanced Materials (Deerfield Beach, Fla.)
|June 27, 2025
PubMed
Summary

Bioinspired Turing patterns create advanced nanomaterials for ultrasensitive mercury detection using surface-enhanced Raman spectroscopy (SERS). This novel platform offers reliable, on-site environmental and food safety analysis.

Keywords:
SERSbioinspiredmercury speciationneedle sensorsturing patternzif‐8

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Analytical Chemistry

Background:

  • Turing patterns in nature inspire advanced material designs.
  • Surface-enhanced Raman spectroscopy (SERS) has potential for sensitive detection.
  • Integrating bioinspiration with nanotechnology can enhance SERS performance.

Purpose of the Study:

  • To engineer a bioinspired hierarchical architecture for enhanced SERS.
  • To develop a platform for ultrasensitive detection of mercury species.
  • To demonstrate the potential for real-world environmental and food safety monitoring.

Main Methods:

  • Fabrication of Turing-nanoarchitected silver (TN-Ag) with in situ zeolitic imidazolate framework-8 (ZIF-8) growth.
  • Utilizing TN-Ag as plasmonic amplifiers and templates for ZIF-8.
  • Employing 4-mercaptophenylboronic acid as a dual-recognition probe for mercury detection.

Main Results:

  • Achieved dual-scale SERS enhancement via refractive index gradients and size-selective pores.
  • Ultrasensitive detection of Hg2+ (10-10 m) and methylmercury (10-8 m) with high interference resistance.
  • Demonstrated direct sampling in untreated solid matrices with portable Raman systems.

Conclusions:

  • The TN-Ag/ZIF-8 hierarchical architecture provides a universal paradigm for on-site chemical analysis.
  • This bioinspired approach effectively combines biological design logic with engineered sensing demands.
  • The platform shows readiness for practical environmental monitoring and food safety diagnostics.