1
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Sloan-Dennison S, Wallace GQ, Hassanain WA, Laing S, Faulds K, Graham D. Advancing SERS as a quantitative technique: challenges, considerations, and correlative approaches to aid validation. NANO CONVERGENCE 2024; 11:33. [PMID: 39154073 PMCID: PMC11330436 DOI: 10.1186/s40580-024-00443-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 08/06/2024] [Indexed: 08/19/2024]
Abstract
Surface-enhanced Raman scattering (SERS) remains a significant area of research since it's discovery 50 years ago. The surface-based technique has been used in a wide variety of fields, most prominently in chemical detection, cellular imaging and medical diagnostics, offering high sensitivity and specificity when probing and quantifying a chosen analyte or monitoring nanoparticle uptake and accumulation. However, despite its promise, SERS is mostly confined to academic laboratories and is not recognised as a gold standard analytical technique. This is due to the variations that are observed in SERS measurements, mainly caused by poorly characterised SERS substrates, lack of universal calibration methods and uncorrelated results. To convince the wider scientific community that SERS should be a routinely used analytical technique, the field is now focusing on methods that will increase the reproducibility of the SERS signals and how to validate the results with more well-established techniques. This review explores the difficulties experienced by SERS users, the methods adopted to reduce variation and suggestions of best practices and strategies that should be adopted if one is to achieve absolute quantification.
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Affiliation(s)
- Sian Sloan-Dennison
- Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK
| | - Gregory Q Wallace
- Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK
| | - Waleed A Hassanain
- Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK
| | - Stacey Laing
- Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK
| | - Karen Faulds
- Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK
| | - Duncan Graham
- Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK.
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2
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Lu X, Lu W, Hua D. A novel SERS-lateral flow assay (LFA) tray for monitoring of miR-155-5p during pyroptosis in breast cancer cells. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3878-3894. [PMID: 38828902 DOI: 10.1039/d4ay00363b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
In the study, a novel surface-enhanced Raman scattering (SERS)-lateral flow assay (LFA) tray for the real-time detection of pyroptosis-associated miR-155-5p in breast cancer cells was established and validated. The SERS probe modified with monoclonal antibodies and functionalized HP1@5-FAM was first synthesized. When miR-155-5p was present, HP1@5-FAM on the SERS probe specifically recognized target miRNAs and hybridized with them, resulting in HP2 on the T line only capturing some SERS probes that were not bound to miR-155-5p. The T line appeared as a light orange band or there was no color change, and the corresponding Raman detection result showed a weak or insignificant Raman signal. The SERS probe showed high selectivity, satisfactory stability, and excellent reproducibility, and the limit of detection (LOD) for miR-155-5p was 7.26 aM. Finally, the proposed SERS-LFA tray was applied to detect miR-155-5p in MBA-MD-468 cells that underwent varying degrees of pyroptosis, and the detection results of SERS were consistent with those of the conventional real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay. The study demonstrated that the SERS-LFA tray was a convenient and ultrasensitive method for miR-155-5p real-time detection, which could provide more detailed information for pyroptosis and be of potential value in guiding the treatment of breast cancer.
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Affiliation(s)
- Xiaoxia Lu
- Department of Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 214122, China.
- Department of Oncology, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, 225000, China
| | - Wenlong Lu
- Department of Pharmacy and Equipment, Taizhou Women's and Children's Hospital, Taizhou, Jiangsu Province, 225300, China
| | - Dong Hua
- Department of Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 214122, China.
- Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu Province, 21411, China
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3
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Wang C, Wang C, Lu W, Wang Y, Yue Q, Xin D, Sun B, Wu J, Sun J, Wang Y. Novel SERS Signal Amplification Strategy for Ultrasensitive and Specific Detection of Spinal Cord Injury-Related miRNA. ACS Sens 2024; 9:736-744. [PMID: 38346401 DOI: 10.1021/acssensors.3c02024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
The expression of microRNA (miRNA) changes in many diseases plays an important role in the diagnosis, treatment, and prognosis of diseases. Spinal cord injury (SCI) is a serious disease of the central nervous system, accompanied by inflammation, cell apoptosis, neuronal necrosis, axonal rupture, demyelination, and other pathological processes, resulting in impaired sensory and motor functions of patients. Studies have shown that miRNA expression has changed after SCI, and miRNAs participate in the pathophysiological process and treatment of SCI. Therefore, quantitative analysis and monitoring of the expression of miRNA were of great significance for the diagnosis and treatment of SCI. Through the SCI-related miRNA chord plot, we screened out miRNA-21-5p and miRNA-let-7a with a higher correlation. However, for traditional detection strategies, it is still a great challenge to achieve a fast, accurate, and sensitive detection of miRNA in complex biological environments. The most frequently used method for detecting miRNAs is polymerase chain reaction (PCR), but it has disadvantages such as being time-consuming and cumbersome. In this paper, a novel SERS sensor for the quantitative detection of miRNA-21-5p and miRNA-let-7a in serum and cerebrospinal fluid (CSF) was developed. The SERS probe eventually formed a sandwich-like structure of Fe3O4@hpDNA@miRNA@hpDNA@GNCs with target miRNAs, which had high specificity and stability. This SERS sensor achieved a wide range of detection from 1 fM to 1 nM and had a good linear relationship. The limits of detection (LOD) for miRNA-21-5p and miRNA-let-7a were 0.015 and 0.011 fM, respectively. This new strategy realized quantitative detection and long-term monitoring of miRNA-21-5p and miRNA-let-7a in vivo. It is expected to become a powerful biomolecule analysis tool and will provide ideas for the diagnosis and treatment of many diseases.
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Affiliation(s)
- Cai Wang
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271000, China
| | - Chengcheng Wang
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271000, China
| | - Weizhao Lu
- School of Radiology, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271000, China
| | - Yanjiao Wang
- School of Radiology, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271000, China
| | - Qianwen Yue
- Taishan Vocational College of Nursing, Taian, Shandong 271000, China
| | - Dongyuan Xin
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271000, China
| | - Baoliang Sun
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271000, China
| | - Jingguo Wu
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271000, China
| | - Jingyi Sun
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
| | - Ying Wang
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271000, China
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4
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Issatayeva A, Farnesi E, Cialla-May D, Schmitt M, Rizzi FMA, Milanese D, Selleri S, Cucinotta A. SERS-based methods for the detection of genomic biomarkers of cancer. Talanta 2024; 267:125198. [PMID: 37722343 DOI: 10.1016/j.talanta.2023.125198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 09/05/2023] [Accepted: 09/10/2023] [Indexed: 09/20/2023]
Abstract
Genomic biomarkers of cancer are based on changes in nucleic acids, which include abnormal expression levels of some miRNAs, point mutations in DNA sequences, and altered levels of DNA methylation. The presence of tumor-related nucleic acids in body fluids (blood, saliva, or urine) makes it possible to achieve a non-invasive early-stage cancer diagnosis. Currently existing techniques for the discovery of nucleic acids require complex, time-consuming, costly assays and have limited multiplexing abilities. Surface-enhanced Raman spectroscopy (SERS) is a vibrational spectroscopy technique that is able to provide molecular specificity combined with trace sensitivity. SERS has gained research attention as a tool for the detection of nucleic acids because of its promising potential: label-free SERS can decrease the complexity of assays currently used with fluorescence-based detection due to the absence of the label, while labeled SERS may outperform the gold standard in terms of the multiplexing ability. The first papers about SERS-based methods for the measurement of genomic biomarkers were written in 2008, and since then, more than 150 papers have been published. The aim of this paper is to review and evaluate the proposed SERS-based methods in terms of their level of development and their potential for liquid biopsy application, as well as to contribute to their further evolution by attracting research attention to the field. This goal will be reached by grouping, on the basis of their experimental protocol, all the published manuscripts on the topic and evaluating each group in terms of its limit of detection and applicability to real body fluids. Thus, the methods are classified according to their working principles into five main groups, including capture-based, displacement-based, sandwich-based, enzyme-assisted, and specialized protocols.
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Affiliation(s)
- Aizhan Issatayeva
- Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/a, 43124, Parma, Italy.
| | - Edoardo Farnesi
- Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP), Friedrich Schiller University Jena, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743, Jena, Germany; Leibniz Institute of Photonic Technology, Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Albert-Einstein-Straße 9, 07745, Jena, Germany
| | - Dana Cialla-May
- Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP), Friedrich Schiller University Jena, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743, Jena, Germany; Leibniz Institute of Photonic Technology, Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Albert-Einstein-Straße 9, 07745, Jena, Germany
| | - Michael Schmitt
- Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP), Friedrich Schiller University Jena, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743, Jena, Germany
| | | | - Daniel Milanese
- Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/a, 43124, Parma, Italy
| | - Stefano Selleri
- Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/a, 43124, Parma, Italy
| | - Annamaria Cucinotta
- Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/a, 43124, Parma, Italy
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5
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Itoh T, Procházka M, Dong ZC, Ji W, Yamamoto YS, Zhang Y, Ozaki Y. Toward a New Era of SERS and TERS at the Nanometer Scale: From Fundamentals to Innovative Applications. Chem Rev 2023; 123:1552-1634. [PMID: 36745738 PMCID: PMC9952515 DOI: 10.1021/acs.chemrev.2c00316] [Citation(s) in RCA: 86] [Impact Index Per Article: 86.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Indexed: 02/08/2023]
Abstract
Surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS) have opened a variety of exciting research fields. However, although a vast number of applications have been proposed since the two techniques were first reported, none has been applied to real practical use. This calls for an update in the recent fundamental and application studies of SERS and TERS. Thus, the goals and scope of this review are to report new directions and perspectives of SERS and TERS, mainly from the viewpoint of combining their mechanism and application studies. Regarding the recent progress in SERS and TERS, this review discusses four main topics: (1) nanometer to subnanometer plasmonic hotspots for SERS; (2) Ångström resolved TERS; (3) chemical mechanisms, i.e., charge-transfer mechanism of SERS and semiconductor-enhanced Raman scattering; and (4) the creation of a strong bridge between the mechanism studies and applications.
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Affiliation(s)
- Tamitake Itoh
- Health
and Medical Research Institute, National
Institute of Advanced Industrial Science and Technology (AIST), 2217-14 Hayashi-cho, Takamatsu, 761-0395Kagawa, Japan
| | - Marek Procházka
- Faculty
of Mathematics and Physics, Institute of Physics, Charles University, Ke Karlovu 5, 121 16Prague 2, Czech Republic
| | - Zhen-Chao Dong
- Hefei
National Research Center for Physical Sciences at the Microscale, University of Science and Technique of China, Hefei230026, China
| | - Wei Ji
- College
of Chemistry, Chemical Engineering, and Resource Utilization, Northeast Forestry University, Harbin145040, China
| | - Yuko S. Yamamoto
- School
of Materials Science, Japan Advanced Institute
of Science and Technology (JAIST), Nomi, 923-1292Ishikawa, Japan
| | - Yao Zhang
- Hefei
National Research Center for Physical Sciences at the Microscale, University of Science and Technique of China, Hefei230026, China
| | - Yukihiro Ozaki
- School of
Biological and Environmental Sciences, Kwansei
Gakuin University, 2-1,
Gakuen, Sanda, 669-1330Hyogo, Japan
- Toyota
Physical and Chemical Research Institute, Nagakute, 480-1192Aichi, Japan
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6
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Wang Y, Zhang Y, Du Q, Cao D, Lu X, Meng Z. Sensitive SERS detection of oral squamous cell carcinoma-related miRNAs in saliva via a gold nanohexagon array coupled with hybridization chain reaction amplification. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4563-4575. [PMID: 36317581 DOI: 10.1039/d2ay01180h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In this work, a highly specific and sensitive method for the detection of dual miRNAs was successfully developed by a hybridization chain reaction (HCR) amplification coupled with surface-enhanced Raman scattering (SERS) on Au-Ag hollow nanoparticles (Au-Ag HNPs) and a gold nanohexagon (AuNH) array. Two Raman reporter-labelled and hairpin DNA-modified Au-Ag HNPs acted as SERS probes (Au-Ag HNPs@4-MBA@HP1-1, Au-Ag HNPs@4-MBA@HP2-1, Au-Ag HNPs@DTNB@HP1-2, and Au-Ag HNPs@DTNB@HP2-2), and the hairpin DNA-modified AuNH array acted as the capture substrate. The HCR process could be triggered by the presence of target miRNAs, and long DNA hybridization chains on the substrate were formed by self-assembly rapidly, causing significant signal enhancement. Using the mentioned strategy, a low detection limit (LOD) of 6.51 aM for miR-31 and 6.52 aM for miR-21 in human saliva were obtained, showing the biosensor's remarkable sensitivity. The proposed biosensor also displays a significant specificity in detecting target miRNAs by introducing different interfering factors. This method has been successfully applied to detect and identify miR-21 and miR-31 in saliva from oral squamous cell carcinoma (OSCC) patients and healthy subjects. The results were consistent with those of the traditional test method in detecting target miRNAs, which confirmed the good accuracy of our method. Hence, the new assay method has great potential to be a valuable platform for detecting miRNAs in the early diagnosis of OSCC.
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Affiliation(s)
- Youwei Wang
- Department of Neurosurgery, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu, 225000, China
| | - Yatong Zhang
- Graduate School of Dalian Medical University, Dalian, Liaoning, 116011, China
| | - Qiu Du
- Department of Neurosurgery, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu, 225000, China
| | - Demao Cao
- Department of Neurosurgery, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu, 225000, China
| | - Xiaoxia Lu
- Department of Oncology, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu, 225000, China.
| | - Zhibing Meng
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu, 225000, China.
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7
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Xu J, Zhang B, Zhang Y, Mai L, Hu W, Chen CJ, Liu JT, Zhu G. Recent advances in disease diagnosis based on electrochemical-optical dual-mode detection method. Talanta 2022. [DOI: 10.1016/j.talanta.2022.124037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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8
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Moldovan R, Vereshchagina E, Milenko K, Iacob BC, Bodoki AE, Falamas A, Tosa N, Muntean CM, Farcău C, Bodoki E. Review on combining surface-enhanced Raman spectroscopy and electrochemistry for analytical applications. Anal Chim Acta 2022; 1209:339250. [PMID: 35569862 DOI: 10.1016/j.aca.2021.339250] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/12/2021] [Accepted: 11/02/2021] [Indexed: 02/07/2023]
Abstract
The discovery of surface enhanced Raman scattering (SERS) from an electrochemical (EC)-SERS experiment is known as a historic breakthrough. Five decades have passed and Raman spectroelectrochemistry (SEC) has developed into a common characterization tool that provides information about the electrode-electrolyte interface. Recently, this technique has been successfully explored for analytical purposes. EC was found to highly improve the performances of SERS sensors, providing, among others, controlled adsorption of analytes and increased reproducibility. In this review, we highlight the potential of EC-SERS sensors to be implemented for point-of-need (PON) analyses as miniaturized devices, and their ability to revolutionize fields like quality control, diagnosis or environmental and food safety. Important developments have been achieved in Raman spectroelectrochemistry, which now represents a promising alternative to conventional analytical methods and interests more and more researchers. The studies included in this review open endless possibilities for real-life EC-SERS analytical applications.
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Affiliation(s)
- Rebeca Moldovan
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Hațieganu" University of Medicine and Pharmacy, 4, Louis Pasteur, 400349, Cluj-Napoca, Romania
| | - Elizaveta Vereshchagina
- Department of Microsystems and Nanotechnology (MiNaLab), SINTEF Digital, Gaustadalléen 23C, 0373, Oslo, Norway
| | - Karolina Milenko
- Department of Microsystems and Nanotechnology (MiNaLab), SINTEF Digital, Gaustadalléen 23C, 0373, Oslo, Norway
| | - Bogdan-Cezar Iacob
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Hațieganu" University of Medicine and Pharmacy, 4, Louis Pasteur, 400349, Cluj-Napoca, Romania
| | - Andreea Elena Bodoki
- General and Inorganic Chemistry Department, Faculty of Pharmacy, Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, 12, Ion Creangă, 400010, Cluj-Napoca, Romania
| | - Alexandra Falamas
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania
| | - Nicoleta Tosa
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania
| | - Cristina M Muntean
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania
| | - Cosmin Farcău
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania.
| | - Ede Bodoki
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Hațieganu" University of Medicine and Pharmacy, 4, Louis Pasteur, 400349, Cluj-Napoca, Romania.
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9
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Lu X, Yao C, Sun L, Li Z. Plasmon-enhanced biosensors for microRNA analysis and cancer diagnosis. Biosens Bioelectron 2022; 203:114041. [DOI: 10.1016/j.bios.2022.114041] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 01/22/2022] [Accepted: 01/24/2022] [Indexed: 12/19/2022]
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10
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Au nanoparticles decorated ZnO/ZnFe 2O 4 composite SERS-active substrate for melamine detection. Talanta 2022; 236:122819. [PMID: 34635210 DOI: 10.1016/j.talanta.2021.122819] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 12/23/2022]
Abstract
Surface-enhanced Raman scattering (SERS) based on plasmonic metal nanoparticles and semiconductors has been used as performance-enhancing structures for sensing trace chemicals. We have selected a case of oxide functional oxide organic nanostructure between ZnFe2O4 and ZnO, denoted as ZZF. By decorating such nanostructure with AuNPs, to identify R6G in varying concentrations (10-6 M - 10-12 M), an enhancement factor of 1.6 × 108 was observed. The material was used for the identification of melamine in the concentration range of 0.39 μM-7.92 μM. This high-performance nanocomposite provides improved melamine sensitivity towards SERS and the limit of detection as low as 0.39 μM. The Au-ZZF SERS substrate can yield a SERS enhancement factor of 1.37 × 107. The experimental performance demonstrates that excellent SERS enhancement is due to electrons movement within ZZF and Au nanoparticles. Owing to its easy and effective synthesis methodology, this sensitive and specific SERS substrate is a promising technique to detect trace chemicals. We further study the best energetically favorable orientation of melamine molecules over the substrate leading to the SERS activity using density functional theoretical study.
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11
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Sun Z, Tong Y, Zhou X, Li J, Zhao L, Li H, Wang C, Du L, Jiang Y. Ratiometric Fluorescent Biosensor Based on Forster Resonance Energy Transfer between Carbon Dots and Acridine Orange for miRNA Analysis. ACS OMEGA 2021; 6:34150-34159. [PMID: 34926963 PMCID: PMC8675165 DOI: 10.1021/acsomega.1c05901] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 11/22/2021] [Indexed: 06/14/2023]
Abstract
The expression level of miRNA is highly correlated with the pathological process of malignant tumors. Therefore, the abnormal expression of miRNA in serum is considered as reliable evidence for the existence of tumor cells. Here, a ratiometric fluorescent biosensor based on the Forster resonance energy transfer between fluorophores is proposed for detecting colorectal cancer-specific miRNA (miR-92a-3p). The miRNA in serum was first isolated by carboxyl-modified SiO2 microspheres. Then, the addition of miRNA to the detection system resulted in the distance change between the donor acridine orange (AO) and the acceptor fluorescent carbon dots (CDs), which made the fluorescence signal change. The physicochemical properties, especially the fluorescence characteristics of CDs and AO, which enabled the ratiometric fluorescence detection, were comprehensively studied. The ratiometric fluorescent biosensor could detect miRNA in the concentration range of 1-9 nM and showed a detection limit of 0.14 nM. Moreover, the ratiometric fluorescent biosensor exhibited high selectivity for the target miRNA. The validity of the ratiometric fluorescent biosensor was also verified using the serum sample, demonstrating its potential for enzyme-free miRNA analysis.
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Affiliation(s)
- Zhiwei Sun
- Key
Laboratory for Liquid−Solid Structural Evolution and Processing
of Materials, Ministry of Education, Shandong
University, Jinan 250061, China
- Shenzhen
Research Institute of Shandong University, Shenzhen 518057, China
| | - Yao Tong
- Department
of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, China
| | - Xiaoyu Zhou
- Key
Laboratory for Liquid−Solid Structural Evolution and Processing
of Materials, Ministry of Education, Shandong
University, Jinan 250061, China
| | - Juan Li
- Department
of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, China
| | - Li Zhao
- Key
Laboratory for Liquid−Solid Structural Evolution and Processing
of Materials, Ministry of Education, Shandong
University, Jinan 250061, China
| | - Hui Li
- Key
Laboratory for Liquid−Solid Structural Evolution and Processing
of Materials, Ministry of Education, Shandong
University, Jinan 250061, China
| | - Chuanxin Wang
- Department
of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, China
- Shandong
Engineering & Technology Research Center for Tumor Marker Detection, Jinan 250033, China
- Shandong
Provincial Clinical Medicine Research Center for Clinical Laboratory, Jinan 250033, China
| | - Lutao Du
- Department
of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, China
| | - Yanyan Jiang
- Key
Laboratory for Liquid−Solid Structural Evolution and Processing
of Materials, Ministry of Education, Shandong
University, Jinan 250061, China
- Shenzhen
Research Institute of Shandong University, Shenzhen 518057, China
- Suzhou Institute
of Shandong University, Suzhou 215123, China
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12
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Yi R, Wu Y. Research Progress on Surface-Enhanced Raman Spectroscopy Technique for the Detection of microRNA. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21010017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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