Microchimica Acta

, 186:458 | Cite as

A 3D spongy flexible nanosheet array for on-site recyclable swabbing extraction and subsequent SERS analysis of thiram

  • Ying Wang
  • Xiaofei Yu
  • Yuhong Chang
  • Cuiling Gao
  • Jing ChenEmail author
  • Xiaoli ZhangEmail author
  • Jinhua ZhanEmail author
Original Paper


A sponge inspired three dimensional flexible aluminum foil based ZnO nanosheet array substrate is described for use in real-world surface enhanced Raman spectroscopic detection. Gold and silver nanoparticles were employed to form numerous hot spots on uniformly grown ZnO nanosheets on the substrate. This flexible spongy substrate can extract analytes (such as the fungicide thiram) from various complex sample surfaces by physical swabbing. Specifically, this substrate was applied to detect thiram on the surface of fruits and vegetables. Non-destructive recycling detection with a relative standard deviation of 6.1% was accomplished by monitoring the characteristic Raman peak at 1382 cm−1. This modified substrate has a low detection limit (0.2 ng cm−2 of thiram for apple and tomato), outstanding uniformity (relative standard deviation = 8.9%) and thermal stability (relative standard deviation = 0.9%).

Graphical abstract

Schematic representation of using a aluminum foil modified with ZnO nanosheets as a flexible and recyclable substrate for SERS analysis of pollutants. The substrate can be cleaned after use by UV irradiation.


Surface-enhanced Raman spectroscopy Swabbing extraction Recyclable substrate Flexible substrate On-site detection 



This work was supported by the financial support from the National Natural Science Foundation of China (NSFC 21575077, 21750110438, 21876099), the Science and Technology Development Plans of Shandong Province (ZR2017ZC0227) and the Fundamental Research Funds of Shandong University (2016JC030).

Compliance with ethical standards

The author(s) declare that they have no competing interests.

Supplementary material

604_2019_3579_MOESM1_ESM.docx (1.8 mb)
ESM 1 (DOCX 1.76 mb)


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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, Department of ChemistryShandong UniversityJinanChina
  2. 2.Shandong Institute of Product Quality Supervision and InspectionJinanChina
  3. 3.Suzhou Institute of Shandong UniversitySuzhouChina
  4. 4.National Engineering Research Center for Colloidal MaterialsShandong UniversityJinanChina

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