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Chemosensors
Special Issues
Portable Fast Detection Platforms Based on SERS Technology
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Portable Fast Detection Platforms Based on SERS Technology

A special issue of Chemosensors (ISSN 2227-9040). This special issue belongs to the section "Optical Chemical Sensors".

Deadline for manuscript submissions: 15 January 2025 | Viewed by 1908

Special Issue Editor

Dr. Maofeng Zhang

E-Mail Website
Guest Editor
School of Chemistry and Chemical Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
Interests: synthesis of novel SERS/PIERS substrates and their portable rapid detection of analytes

Special Issue Information

Dear Colleagues,

The rapid, on-site Raman spectroscopic identification and quantification of biological and chemical species have been restricted by the low instrumental sensitivity of a portable Raman instrument, and no ideal platforms have been reported for analyzing pesticides on real sample surfaces. An efficient method to improve the detection sensitivity is to fabricate a highly sensitive surface-enhanced Raman scattering (SERS) substrate. A multifunctional solid-state surface-enhanced Raman scattering (SERS) nanoarray exhibiting superior detection sensitivity with high stability and reproducibility is a research hotspot, since it provides multiple analyses and on-site detection platform. The novel SERS substrates can be applied to detect trace analytes and show great potential as an effective SERS platform for rapid on-site chemical and biological sensing. Furthermore, the photo-induced enhanced Raman spectroscopy (PIERS) technique may also become an effective way for enhancing Raman scattering, which has great potential for portable Raman detections.

In this Special Issue “Portable Fast Detection Platforms Based on SERS Technology”, we welcome contributions of original research and comprehensive review submissions reporting the latest research progress and development on sensing technologies using novel SERS substrates.

Dr. Maofeng Zhang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Chemosensors is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • SERS
  • PIERS
  • novel substrates
  • sensing
  • drug analysis and detection
  • environment detection
  • biomarker detection
  • portable platforms

Published Papers (1 paper)

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Research

14 pages, 9170 KiB  
Article
Engineering Branched Au@Ag Nanostar Plasmonic Array for Coupling Electromagnetic Enhancement and SERS Trace Detection of Polystyrene in Aquatic Environments
by Mingzhu Wu, Jianhang Lin, Da Zheng, Yirui Yang, Zhihao Li, Zhengdong Zhu, Yonghui Shen, Gang Ni and Maofeng Zhang
Chemosensors 2023, 11(10), 531; https://doi.org/10.3390/chemosensors11100531 - 09 Oct 2023
Viewed by 1418
Abstract
Micro/nanoplastics are widespread in the environment and may cause severe damage to creatures and human beings. Micro/nanoplastic pollution has become a global focus issue; hence, the rapid and accurate detection of micro/nanoplastics is an essential step to ensure health. Herein, we report a [...] Read more.
Micro/nanoplastics are widespread in the environment and may cause severe damage to creatures and human beings. Micro/nanoplastic pollution has become a global focus issue; hence, the rapid and accurate detection of micro/nanoplastics is an essential step to ensure health. Herein, we report a surface-enhanced Raman scattering (SERS) technique to sensitively and quantitatively identify micro/nanoplastics in environmental water samples. A three-dimensional hierarchical Au@Ag nanostar (NSs) was synthesized and employed as an efficient SERS substrate. The “lightning rod effect” generated by tip branches of the nanostars and the coupling effect of the neighboring branches of the nanostar array enabled the ultra-trace detection of crystal violet (CV) down to 10−9 M, even with a portable Raman device. Moreover, the hydrophobic property of the SERS substrate endowed it with a desirable enrichment effect, which meant an increase in the concentration or quantity of the micro/nanoplastic particles. And thereafter, the SERS sensor achieved a highly sensitive detection of polystyrene (PS) particle standard solution at a low concentration of 25 μg/mL or 2.5 μg/mL. Importantly, the detected concentration and the SERS intensity followed a nearly linear relationship, indicating the capability of quantitative analysis of micro/nanoplastics. In addition, the SERS sensor was successfully extended to detect PS particles in environmental water samples, including tap water, sea water, and soil water, and the detection concentration was determined to be 25 μg/mL, 2.5 μg/mL, and 25 μg/mL, respectively. The present Au@AgNSs array substrate with a two-order magnitude signal amplification further exhibited significant advantages in the label-free analysis of micro/nanoplastics in real water samples. Full article
(This article belongs to the Special Issue Portable Fast Detection Platforms Based on SERS Technology)
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