Grating/microcavity arrays on lily petal replicas as dual-functional SERS substrates for rapid monitoring of thiram on fruit surface and malachite green in surface water.

Hongjun Wang, Ziyang Bian, Yue Wang, Zhenshan Yang, Huijuan Niu, Hefu Li

Abstract read

In one paragraph

Article in Mikrochimica acta, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Hongjun WangSchool of Physical Science and Information Engineering, Liaocheng University, Liaocheng, 252000, China.

Ziyang BianSchool of Physical Science and Information Engineering, Liaocheng University, Liaocheng, 252000, China.

Yue WangSchool of Physical Science and Information Engineering, Liaocheng University, Liaocheng, 252000, China.

Zhenshan YangSchool of Physical Science and Information Engineering, Liaocheng University, Liaocheng, 252000, China.

Huijuan NiuSchool of Physical Science and Information Engineering, Liaocheng University, Liaocheng, 252000, China.

Hefu LiSchool of Physical Science and Information Engineering, Liaocheng University, Liaocheng, 252000, China. lihefu@lcu.edu.cn.

Funding

Liaocheng University Start-up Fund for Doctoral Scientific Research 318051542Natural Science Foundation of Shandong Province ZR2021MF097Natural Science Foundation of Shandong Province ZR2022MF305

6 · The paper itself

Abstract

A dual-functional biomimetic surface-enhanced Raman scattering (SERS) substrate composed of grating/microcavity arrays (GCA) was developed for on-site monitoring of pesticides on fruit peels and in surface water. The hierarchical GCA structure was fabricated by molding a negative polydimethylsiloxane (PDMS) replica from lily petals, followed by the generation of grating wrinkles through oxygen plasma treatment. After the deposition of silver nanoparticles (Ag NPs) through magnetron sputtering, the optimal Ag NPs@GCA substrate exhibits high sensitivity, good uniformity, and reproducibility. Moreover, due to its optical transparency, mechanical stability, and hydrophobic properties, the Ag NPs@GCA substrate combined with a handhold Raman spectrometer can be used for on-site determination of pesticides in real samples. The limit of detection (LOD) for thiram on the surfaces of apples, pears, and cherry tomatoes were 2.86 × 10

Indexed as

Grating/microcavity arraysLily petalMalachite greenOn-site analysisSERSThiram

Identifiers

PMID39934430

DOI10.1007/s00604-025-07025-z

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.