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Sun Y, Zhou L, Ding Y, Liu C, Mao ZS, Jiang QY, Chen J, Chen F, Cao Y. Fabrication of flexible electrospinning nano-fiber membrane for detection of respiratory tract transmission virus based on SERS. Talanta 2024; 266:125127. [PMID: 37647815 DOI: 10.1016/j.talanta.2023.125127] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 09/01/2023]
Abstract
The application of flexible sensors in the biomedical field is deepening. It is of great significance to develop flexible wearable sensors which are more in line with the needs of the public. A flexible polylactic acid membrane fabric was prepared by electrospinning method. The membrane was used as SERS active substrate by screen printing capture probe which combine Au nanoplates with antibodies to the target substance. Thioglycolic acid-labeled silver nanoparticles coupled with antibodies as SERS nanotags. The target substance can be fixed between the capture probe and SERS nanotags. Due to the high specific surface area between the spinning, the adhesion rate of the capture probe is higher than that of the rigid substrate, and the enrichment and hypersensitivity detection of the object to be tested could be realized. The membranes prepared are flexible, wearable, portable, highly biocompatible, and can be mass-produced for high-throughput detection. We then applied the sensor to the detection of SARS-CoV-2 with detection limits as low as 10 TU/mL. This membrane as a SERS substrate can offer a fast and non-invasive reference for the early diagnosis of respiratory infectious diseases similar to COVID-19.
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Affiliation(s)
- Yang Sun
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, 211166, PR China
| | - Liuzhu Zhou
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, PR China
| | - Yan Ding
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, 211166, PR China
| | - Cheng Liu
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, 211166, PR China
| | - Zheng-Sheng Mao
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, 211166, PR China
| | - Qiao-Yan Jiang
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, 211166, PR China
| | - Jin Chen
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, PR China.
| | - Feng Chen
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, 211166, PR China.
| | - Yue Cao
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, 211166, PR China.
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Cheng Y, Ding Y, Chen J, Xu W, Wang W, Xu S. Au nanoparticles decorated covalent organic framework composite for SERS analyses of malachite green and thiram residues in foods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 281:121644. [PMID: 35878495 DOI: 10.1016/j.saa.2022.121644] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
A three-dimensional (3D) surface-enhanced Raman scattering (SERS) substrate composed of gold nanoparticles (AuNPs) self-assembled covalent organic frameworks (COFs) was fabricated via the electrostatic interaction between positively charged COFs and negatively charged AuNPs, which exhibited excellent SERS performance and were successfully applied for the analyses of malachite green (MG) residue in different seafood products as well as thiram residue in several kinds of fruit juice. The raspberry-like structure SERS substrate has a larger surface area that can provide more adsorption sites in testing and improve the efficiency of sample enrichment. By using this developed SERS substrate, the detection linearity ranges are 1.0 × 10-9 mol·L-1-1.0 × 10-6 mol·L-1 for MG and 5.0 × 10-8 mol·L-1-1.0 × 10-5 mol·L-1 for thiram (R2 ≥ 0.995). The detection limits are 6.2 × 10-10 mol·L-1 for MG and 1.7 × 10-8 mol·L-1 for thiram, respectively. The COF-AuNPs substrate was actually applied for analysis of MG in seafood products and thiram in different fruit juice, with the recoveries in the ranges of 94.67-108.99 % for MG and 95.00-107.58 % for thiram, and both of the relative standard deviation (RSD) are no more than 5.88 %. This work indicates that the developed COF-AuNPs substrate is promising for SERS analyses and detections of residues in foods.
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Affiliation(s)
- Yuqi Cheng
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China; Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Yanru Ding
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Jiamin Chen
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China; Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Weiqing Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China; Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Weigang Wang
- No. 2 Department of Urology, The First Hospital of Jilin University, Changchun 130021, PR China.
| | - Shuping Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China; Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China; Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun 130012, PR China.
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Applications of Single-Molecule Vibrational Spectroscopic Techniques for the Structural Investigation of Amyloid Oligomers. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196448. [PMID: 36234985 PMCID: PMC9573641 DOI: 10.3390/molecules27196448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 11/05/2022]
Abstract
Amyloid oligomeric species, formed during misfolding processes, are believed to play a major role in neurodegenerative and metabolic diseases. Deepening the knowledge about the structure of amyloid intermediates and their aggregation pathways is essential in understanding the underlying mechanisms of misfolding and cytotoxicity. However, structural investigations are challenging due to the low abundance and heterogeneity of those metastable intermediate species. Single-molecule techniques have the potential to overcome these difficulties. This review aims to report some of the recent advances and applications of vibrational spectroscopic techniques for the structural analysis of amyloid oligomers, with special focus on single-molecule studies.
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Chen F, Zhao Y, Zhang S, Wei S, Ming A, Mao C. Hydrophobic Wafer-Scale High-Reproducibility SERS Sensor Based on Silicon Nanorods Arrays Decorated with Au Nanoparticles for Pesticide Residue Detection. BIOSENSORS 2022; 12:bios12050273. [PMID: 35624574 PMCID: PMC9138717 DOI: 10.3390/bios12050273] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/21/2022] [Accepted: 04/24/2022] [Indexed: 05/09/2023]
Abstract
High sensitivity and reproducibility are highly desirable to a SERS sensor in diverse detection applications. Moreover, it is a great challenge to determine how to promote the target molecules to be more concentrated on the hotspots of the SERS substrate by engineering a surface with switching interfacial wettability. Along these lines, wafer-scale uniformly hydrophobic silicon nanorods arrays (SiNRs) decorated with Au nanoparticles were designed as the SERS substrate. Typically, the SERS substrate was fabricated by enforcing the polystyrene (PS) sphere self-assembly, as well as the plasma etching and the magnetron sputtering techniques. Consequently, the SERS substrate was treated by soaking within a n-dodecyl mercaptan (NDM) solution at different times in order to obtain adjustable wettabilities. By leveraging the electromagnetic enhancement resulted from the Au nanostructures and enrichment effect induced by the hydrophobicity, the SERS substrate is endowed with efficient SERS capabilities. During the detection of malachite green (MG), an ultralow relative standard deviation (RSD) 4.04-6.14% is achieved and the characteristic signal of 1172 cm-1 can be detected as low as 1 ng/mL. The proposed SiNRs' structure presents outstanding SERS activity with sensitivity and reproducibility rendering thus an ideal candidate for potential application in analytical detection fields.
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Affiliation(s)
- Fanhong Chen
- State Key Laboratory of Advanced Materials for Smart Sensing, GRINM Group Corporation Limited, Beijing 100088, China; (F.C.); (S.Z.)
- Department of Advanced Electronic Materials, GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China;
| | - Yupeng Zhao
- Department of Advanced Electronic Materials, GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China;
- School of Information Science and Technology, North China University of Technology, Beijing 100144, China;
| | - Shaoxun Zhang
- State Key Laboratory of Advanced Materials for Smart Sensing, GRINM Group Corporation Limited, Beijing 100088, China; (F.C.); (S.Z.)
- Department of Advanced Electronic Materials, GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China;
| | - Shuhua Wei
- School of Information Science and Technology, North China University of Technology, Beijing 100144, China;
| | - Anjie Ming
- State Key Laboratory of Advanced Materials for Smart Sensing, GRINM Group Corporation Limited, Beijing 100088, China; (F.C.); (S.Z.)
- Department of Advanced Electronic Materials, GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China;
- Correspondence: (A.M.); (C.M.)
| | - Changhui Mao
- State Key Laboratory of Advanced Materials for Smart Sensing, GRINM Group Corporation Limited, Beijing 100088, China; (F.C.); (S.Z.)
- Department of Advanced Electronic Materials, GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China;
- Correspondence: (A.M.); (C.M.)
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Ushkov AA, Dellea O, Lebaigue O, Poncelet O, Verrier I, Lefkir Y, Jourlin Y. A versatile technology for colloidal crystal transfer using parylene coatings and hydrosoluble polymers. NANOTECHNOLOGY 2022; 33:185301. [PMID: 35062001 DOI: 10.1088/1361-6528/ac4dc3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/21/2022] [Indexed: 06/14/2023]
Abstract
We propose a novel versatile colloidal crystal transfer technique compatible with a wide range of water-insoluble substrates regardless of their size, material, and wettability. There are no inherent limitations on colloidal particles material and size. The method possibilities are demonstrated via the colloidal transfer on quartz, glass substrates with a flat and curved surface, and via the fabrication of 3D colloidal structure with 5 overlaid colloidal monolayers. The process occurs at a room temperature in water and is independent from the illumination conditions, which makes it ideal for experimental manipulations with sensitive functional substrates. We performed the nanosphere photolithography process on a photosensitive substrate with a transferred colloidal monolayer. The metallized hexagonal arrays of nanopores demonstrated a clear resonant plasmonic behavior. We believe that due to its high integration possibilities the proposed transfer technique will find applications in a large-area surface nanotexturing, plasmonics, and will speed up a device fabrication process.
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Affiliation(s)
- Andrei A Ushkov
- Laboratoire Hubert Curien UMR 5516, F-42023, Université de Lyon, UJM-Saint-Etienne, CNRS, Institut d'Optique Graduate School, 18 Rue Du Pr. Benot Lauras, 42000, Saint-Etienne, France
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutsky Lane, 141700, Dolgoprudnyy, Russia
| | - Olivier Dellea
- CEA-Liten, Grenoble Alpes Univ, 17 rue des Martyrs, 38054, Grenoble, France
| | - Olivier Lebaigue
- CEA-Liten, Grenoble Alpes Univ, 17 rue des Martyrs, 38054, Grenoble, France
| | - Olivier Poncelet
- CEA-Liten, Grenoble Alpes Univ, 17 rue des Martyrs, 38054, Grenoble, France
| | - Isabelle Verrier
- Laboratoire Hubert Curien UMR 5516, F-42023, Université de Lyon, UJM-Saint-Etienne, CNRS, Institut d'Optique Graduate School, 18 Rue Du Pr. Benot Lauras, 42000, Saint-Etienne, France
| | - Yaya Lefkir
- Laboratoire Hubert Curien UMR 5516, F-42023, Université de Lyon, UJM-Saint-Etienne, CNRS, Institut d'Optique Graduate School, 18 Rue Du Pr. Benot Lauras, 42000, Saint-Etienne, France
| | - Yves Jourlin
- Laboratoire Hubert Curien UMR 5516, F-42023, Université de Lyon, UJM-Saint-Etienne, CNRS, Institut d'Optique Graduate School, 18 Rue Du Pr. Benot Lauras, 42000, Saint-Etienne, France
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