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Zhou W, Han X, Wu Y, Shi G, Xu S, Wang M, Yuan W, Cui J, Li Z. High-performance grating-like SERS substrate based on machine learning for ultrasensitive detection of Zexie-Baizhu decoction. Heliyon 2024; 10:e30499. [PMID: 38726156 PMCID: PMC11079318 DOI: 10.1016/j.heliyon.2024.e30499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
Rapid, universal and accurate identification of chemical composition changes in multi-component traditional Chinese medicine (TCM) decoction is a necessary condition for elucidating the effectiveness and mechanism of pharmacodynamic substances in TCM. In this paper, SERS technology, combined with grating-like SERS substrate and machine learning method, was used to establish an efficient and sensitive method for the detection of TCM decoction. Firstly, the grating-like substrate prepared by magnetron sputtering technology was served as a reliable SERS sensor for the identification of TCM decoction. The enhancement factor (EF) of 4-ATP probe molecules was as high as 1.90 × 107 and the limit of detection (LOD) was as low as 1 × 10-10 M. Then, SERS technology combined with support vector machine (SVM), decision tree (DT), Naive Bayes (NB) and other machine learning algorithms were used to classify and identify the three TCM decoctions, and the classification accuracy rate was as high as 97.78 %. In summary, it is expected that the proposed method combining SERS and machine learning method will have a high development in the practical application of multi-component analytes in TCM.
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Affiliation(s)
- Wenying Zhou
- Hebei International Research Center for Medical-Engineering, Chengde Medical University, Chengde, 067000, Hebei, China
| | - Xue Han
- Department of Neurology, Affiliated Hospital of Chengde Medical University, Chengde, 067000, Hebei, China
| | - Yanjun Wu
- Hebei International Research Center for Medical-Engineering, Chengde Medical University, Chengde, 067000, Hebei, China
| | - Guochao Shi
- Hebei International Research Center for Medical-Engineering, Chengde Medical University, Chengde, 067000, Hebei, China
| | - Shiqi Xu
- Hebei International Research Center for Medical-Engineering, Chengde Medical University, Chengde, 067000, Hebei, China
| | - Mingli Wang
- State Key Laboratory of Metastable Materials Science and Technology, Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao, 066004, China
| | - Wenzhi Yuan
- Hebei International Research Center for Medical-Engineering, Chengde Medical University, Chengde, 067000, Hebei, China
| | - Jiahao Cui
- Hebei International Research Center for Medical-Engineering, Chengde Medical University, Chengde, 067000, Hebei, China
| | - Zelong Li
- Hebei International Research Center for Medical-Engineering, Chengde Medical University, Chengde, 067000, Hebei, China
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Nie C, Shaw I, Chen C. Application of microfluidic technology based on surface-enhanced Raman scattering in cancer biomarker detection: A review. J Pharm Anal 2023; 13:1429-1451. [PMID: 38223444 PMCID: PMC10785256 DOI: 10.1016/j.jpha.2023.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 08/02/2023] [Accepted: 08/10/2023] [Indexed: 01/16/2024] Open
Abstract
With the continuous discovery and research of predictive cancer-related biomarkers, liquid biopsy shows great potential in cancer diagnosis. Surface-enhanced Raman scattering (SERS) and microfluidic technology have received much attention among the various cancer biomarker detection methods. The former has ultrahigh detection sensitivity and can provide a unique fingerprint. In contrast, the latter has the characteristics of miniaturization and integration, which can realize accurate control of the detection samples and high-throughput detection through design. Both have the potential for point-of-care testing (POCT), and their combination (lab-on-a-chip SERS (LoC-SERS)) shows good compatibility. In this paper, the basic situation of circulating proteins, circulating tumor cells, exosomes, circulating tumor DNA (ctDNA), and microRNA (miRNA) in the diagnosis of various cancers is reviewed, and the detection research of these biomarkers by the LoC-SERS platform in recent years is described in detail. At the same time, the challenges and future development of the platform are discussed at the end of the review. Summarizing the current technology is expected to provide a reference for scholars engaged in related work and interested in this field.
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Affiliation(s)
- Changhong Nie
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, China
| | - Ibrahim Shaw
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, China
| | - Chuanpin Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, China
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Hsu JC. Editorial for the Special Issue "Applications of Optical Thin Films". NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1387. [PMID: 37110972 PMCID: PMC10142721 DOI: 10.3390/nano13081387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 04/13/2023] [Indexed: 06/19/2023]
Abstract
Optical thin films have been vital to enhancing optical performance for many years [...].
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Wu HY, Lin HC, Liu YH, Chen KL, Wang YH, Sun YS, Hsu JC. Highly Sensitive, Robust, and Recyclable TiO 2/AgNP Substrate for SERS Detection. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196755. [PMID: 36235289 PMCID: PMC9571145 DOI: 10.3390/molecules27196755] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 11/26/2022]
Abstract
Label-free biosensors provide an important platform for detecting chemical and biological substances without needing extra labeling agents. Unlike surface-based techniques such as surface plasmon resonance (SPR), interference, and ellipsometry, surface-enhanced Raman spectroscopy (SERS) possesses the advantage of monitoring analytes both on surfaces and in solutions. Increasing the SERS enhancement is crucial to preparing high-quality substrates without quickly losing their stability, sensitivity, and repeatability. However, fabrication methods based on wet chemistry, nanoimprint lithography, spark discharge, and laser ablation have drawbacks of waste of time, complicated processes, or nonreproducibility in surface topography. This study reports the preparation of recyclable TiO2/Ag nanoparticle (AgNP) substrates by using simple arc ion plating and direct-current (dc) magnetron sputtering technologies. The deposited anatase-phased TiO2 ensured the photocatalytic degradation of analytes. By measuring the Raman spectra of rhodamine 6G (R6G) in titrated concentrations, a limit of detection (LOD) of 10−8 M and a SERS enhancement factor (EF) of 1.01 × 109 were attained. Self-cleaning was performed via UV irradiation, and recyclability was achieved after at least five cycles of detection and degradation. The proposed TiO2/AgNP substrates have the potential to serve as eco-friendly SERS enhancers for label-free detection of various chemical and biological substances.
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Affiliation(s)
- Hsing-Yu Wu
- System Manufacturing Center, National Chung-Shan Institute of Science and Technology, New Taipei City 237209, Taiwan
- Center for Astronomical Physics and Engineering, Department of Optics and Photonics, National Central University, Taoyuan City 320317, Taiwan
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Hung-Chun Lin
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - Yung-Hsien Liu
- System Manufacturing Center, National Chung-Shan Institute of Science and Technology, New Taipei City 237209, Taiwan
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, Taoyuan City 335009, Taiwan
| | - Kai-Lin Chen
- System Manufacturing Center, National Chung-Shan Institute of Science and Technology, New Taipei City 237209, Taiwan
| | - Yu-Hsun Wang
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - Yung-Shin Sun
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Correspondence: (Y.-S.S.); (J.-C.H.)
| | - Jin-Cherng Hsu
- Department of Physics, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Graduate Institute of Applied Science and Engineering, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Correspondence: (Y.-S.S.); (J.-C.H.)
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