1
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Chen Y, Wang H, Wan Y, Li S, Zhang L, Xing Z, Zhang Q, Xia L. Poly(ionic liquid)s-Based Thermal-Responsive Microgel for Use as SERS Substrates with "ON-OFF" Switchable Effect. Macromol Rapid Commun 2024; 45:e2400028. [PMID: 38593331 DOI: 10.1002/marc.202400028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/11/2024] [Indexed: 04/11/2024]
Abstract
A temperature-responsive surface-enhanced Raman scattering (SERS) substrate with "ON-OFF" switching based on poly(ionic liquid)s (PILs) block copolymer microgels have been designed and synthesized. The PIL units act as a joint component to anchor the gold nanoparticles (AuNPs) and analytes onto poly(N-isopropylacrylamide) (PNIPAm). This anchor allows the analytes to be fixed at the formed hot spots under temperature stimulus. Owing to the regulation of the PNIPAm segment, the SERS substrates exhibit excellent thermally responsive SERS activity with a reversible "ON-OFF" effect. Additionally, because of the anion exchange of PILs, microgels can introduce new analytes, which offers more flexibility for the system. The substrate shows excellent reversibility, controllability, and flexibility of SERS activity, which is expected to have a broad application in the field of practical SERS sensors.
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Affiliation(s)
- Yaxian Chen
- College of Chemistry, Liaoning University, Shenyang, 110036, China
| | - Huiting Wang
- College of Chemistry, Liaoning University, Shenyang, 110036, China
| | - Yu Wan
- College of Chemistry, Liaoning University, Shenyang, 110036, China
| | - Shun Li
- College of Chemistry, Liaoning University, Shenyang, 110036, China
| | - Ling Zhang
- College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, 110034, China
| | - Zhiqiang Xing
- College of Chemistry, Liaoning University, Shenyang, 110036, China
| | - Qian Zhang
- College of Chemistry, Liaoning University, Shenyang, 110036, China
| | - Lixin Xia
- College of Chemistry, Liaoning University, Shenyang, 110036, China
- Liaoning Key Lab Chem Addit Synth & Separat, Yingkou Institute of Technology, Yingkou, 115014, China
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2
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Abstract
Antibiotics, nowadays, are not only used for the treatment of human diseases but also used in animal and poultry farming to increase production. Overuse of antibiotics leads to their circulation in the food chain due to unmanaged discharge. These circulating antibiotics and their residues are a major cause of antimicrobial resistance (AMR), so comprehensive and multifaceted measures aligning with the One Health approach are crucial to curb the emergence and dissemination of antibiotic resistance through the food chain. Different chromatographic techniques and capillary electrophoresis (CE) are being widely used for the separation and detection of antibiotics and their residues from food samples. However, the matrix present in food samples interferes with the proper detection of the antibiotics, which are present in trace concentrations. This review is focused on the scientific literature published in the last decade devoted to the detection of antibiotics in food products. Various extraction methods are employed for the enrichment of antibiotics from a wide variety of food samples; however, solid-phase extraction (SPE) techniques are often used for the extraction of antibiotics from food products and biological samples. In addition, this review has scrutinized how changing instrumental composition, organization, and working parameters in the chromatography and CE can greatly impact the identification and quantification of antibiotic residues. This review also summarized recent advancements in other detection methods such as immunological assays, surface-enhanced Raman spectroscopy (SERS)-based assays, and biosensors which have emerged as rapid, sensitive, and selective tools for accurate detection and quantification of traces of antibiotics.
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3
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Ge M, Li P, Zhou G, Chen S, Han W, Qin F, Nie Y, Wang Y, Qin M, Huang G, Li S, Wang Y, Yang L, Tian Z. General Surface-Enhanced Raman Spectroscopy Method for Actively Capturing Target Molecules in Small Gaps. J Am Chem Soc 2021; 143:7769-7776. [PMID: 33988987 DOI: 10.1021/jacs.1c02169] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Over the past decade, many efforts have been devoted to designing and fabricating substrates for surface-enhanced Raman spectroscopy (SERS) with abundant hot spots to improve the sensitivity of detection. However, there have been many difficulties involved in causing molecules to enter hot spots actively or effectively. Here, we report a general SERS method for actively capturing target molecules in small gaps (hot spots) by constructing a nanocapillary pumping model. The ubiquity of hot spots and the inevitability of molecules entering them lights up all the hot spots and makes them effective. This general method can realize the highly sensitive detection of different types of molecules, including organic pollutants, drugs, poisons, toxins, pesticide residues, dyes, antibiotics, amino acids, antitumor drugs, explosives, and plasticizers. Additionally, in the dynamic detection process, an efficient and stable signal can be maintained for 1-2 min, which increases the practicality and operability of this method. Moreover, a dynamic detection process like this corresponds to the processes of material transformation in some organisms, so the method can be used to monitor transformation processes such as the death of a single cell caused by photothermal stimulation. Our method provides a novel pathway for generating hot spots that actively attract target molecules, and it can achieve general ultratrace detection of diverse substances and be applied to the study of cell behaviors in biological systems.
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Affiliation(s)
- Meihong Ge
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Pan Li
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Guoliang Zhou
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Siyu Chen
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Wei Han
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Feng Qin
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yuman Nie
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Yaoxiong Wang
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Miao Qin
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guangyao Huang
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Shaofei Li
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yongtao Wang
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Liangbao Yang
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Zhongqun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, P. R. China
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4
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Kang Y, Yang F, Wu T, Lu S, Du Y, Yang H. The laser-triggered dynamical plasmonic optical trapping of targets and advanced Raman detection sensitivity. Chem Commun (Camb) 2020; 56:13157-13160. [DOI: 10.1039/d0cc04726k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Targets can be captured at hot spots during the laser-induced agglomeration of AgNPs via dynamical plasmonic optical trapping.
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Affiliation(s)
- Yan Kang
- Center of Analysis and Test
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Feng Yang
- Department of Laboratory Medicine
- Huadong Hospital
- Fudan University
- Shanghai
- China
| | - Ting Wu
- Center of Analysis and Test
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Siqian Lu
- Center of Analysis and Test
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yiping Du
- Center of Analysis and Test
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Haifeng Yang
- Department of Chemistry
- Shanghai Normal University
- Shanghai 200234
- China
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5
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He X, Liu Y, Liu Y, Cui S, Liu W, Li Z. Controllable fabrication of Ag-NP-decorated porous ZnO nanosheet arrays with superhydrophobic properties for high performance SERS detection of explosives. CrystEngComm 2020. [DOI: 10.1039/c9ce01430f] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
An efficient hydrophobic condensation surface was developed and used as an ultrasensitive and stable SERS sensor based on ZnO–Ag hybrid mesoporous nanosheet (MNS) arrays for natural explosive sample detection.
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Affiliation(s)
- Xuan He
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang 621900
- China
| | - Yu Liu
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang 621900
- China
| | - Yi Liu
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang 621900
- China
| | - Sheng Cui
- Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites
- Nanjing Tech University
- Nanjing 210009
- China
| | - Wei Liu
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang 621900
- China
| | - Zhongbo Li
- Key Laboratory of Materials Physics
- Anhui, Key Laboratory of Nanomaterials and Nanostructures
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei
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6
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Yang L, Peng Y, Yang Y, Liu J, Huang H, Yu B, Zhao J, Lu Y, Huang Z, Li Z, Lombardi JR. A Novel Ultra-Sensitive Semiconductor SERS Substrate Boosted by the Coupled Resonance Effect. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900310. [PMID: 31380169 PMCID: PMC6662085 DOI: 10.1002/advs.201900310] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 03/28/2019] [Indexed: 05/21/2023]
Abstract
Recent achievements in semiconductor surface-enhanced Raman scattering (SERS) substrates have greatly expanded the application of SERS technique in various fields. However, exploring novel ultra-sensitive semiconductor SERS materials is a high-priority task. Here, a new semiconductor SERS-active substrate, Ta2O5, is developed and an important strategy, the "coupled resonance" effect, is presented, to optimize the SERS performance of semiconductor materials by energy band engineering. The optimized Mo-doped Ta2O5 substrate exhibits a remarkable SERS sensitivity with an enhancement factor of 2.2 × 107 and a very low detection limit of 9 × 10-9 m for methyl violet (MV) molecules, demonstrating one of the highest sensitivities among those reported for semiconductor SERS substrates. This remarkable enhancement can be attributed to the synergistic resonance enhancement of three components under 532 nm laser excitation: i) MV molecular resonance, ii) photoinduced charge transfer resonance between MV molecules and Ta2O5 nanorods, and iii) electromagnetic enhancement around the "gap" and "tip" of anisotropic Ta2O5 nanorods. Furthermore, it is discovered that the concomitant photoinduced degradation of the probed molecules in the time-scale of SERS detection is a non-negligible factor that limits the SERS performance of semiconductors with photocatalytic activity.
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Affiliation(s)
- Lili Yang
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructuresShanghai Institute of CeramicsChinese Academy of Sciences1295 Dingxi RoadShanghai200050P. R. China
- University of Chinese Academy of SciencesNo.19(A) Yuquan RoadBeijing100049P. R. China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yusi Peng
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructuresShanghai Institute of CeramicsChinese Academy of Sciences1295 Dingxi RoadShanghai200050P. R. China
- University of Chinese Academy of SciencesNo.19(A) Yuquan RoadBeijing100049P. R. China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yong Yang
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructuresShanghai Institute of CeramicsChinese Academy of Sciences1295 Dingxi RoadShanghai200050P. R. China
- University of Chinese Academy of SciencesNo.19(A) Yuquan RoadBeijing100049P. R. China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jianjun Liu
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructuresShanghai Institute of CeramicsChinese Academy of Sciences1295 Dingxi RoadShanghai200050P. R. China
| | - Haoliang Huang
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of ChinaHefei230026P. R. China
| | - Bohan Yu
- University of Chinese Academy of SciencesNo.19(A) Yuquan RoadBeijing100049P. R. China
- Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing100190P. R. China
| | - Jimin Zhao
- University of Chinese Academy of SciencesNo.19(A) Yuquan RoadBeijing100049P. R. China
- Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing100190P. R. China
| | - Yalin Lu
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of ChinaHefei230026P. R. China
| | - Zhengren Huang
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructuresShanghai Institute of CeramicsChinese Academy of Sciences1295 Dingxi RoadShanghai200050P. R. China
| | - Zhiyuan Li
- South China University of TechnologyGuangzhou510640GuangdongP. R. China
| | - John R. Lombardi
- Department of ChemistryThe City College of New York160 Convent AvenueNew YorkNY10031USA
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7
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Mun C, Linh VTN, Kwon JD, Jung HS, Kim DH, Park SG. Highly Sensitive and Selective Nanogap-Enhanced SERS Sensing Platform. NANOMATERIALS 2019; 9:nano9040619. [PMID: 30995760 PMCID: PMC6523801 DOI: 10.3390/nano9040619] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 04/11/2019] [Accepted: 04/11/2019] [Indexed: 11/16/2022]
Abstract
This paper reports a highly sensitive and selective surface-enhanced Raman spectroscopy (SERS) sensing platform. We used a simple fabrication method to generate plasmonic hotspots through a direct maskless plasma etching of a polymer surface and the surface tension-driven assembly of high aspect ratio Ag/polymer nanopillars. These collapsed plasmonic nanopillars produced an enhanced near-field interaction via coupled localized surface plasmon resonance. The high density of the small nanogaps yielded a high plasmonic detection performance, with an average SERS enhancement factor of 1.5 × 107. More importantly, we demonstrated that the encapsulation of plasmonic nanostructures within nanofiltration membranes allowed the selective filtration of small molecules based on the degree of membrane swelling in organic solvents and molecular size. Nanofiltration membrane-encapsulated SERS substrates do not require pretreatments. Therefore, they provide a simple and fast detection of toxic molecules using portable Raman spectroscopy.
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Affiliation(s)
- ChaeWon Mun
- Advanced Nano-Surface Department (ANSD), Korea Institute of Materials Science (KIMS), Changwon 51508, Korea.
| | - Vo Thi Nhat Linh
- Advanced Nano-Surface Department (ANSD), Korea Institute of Materials Science (KIMS), Changwon 51508, Korea.
| | - Jung-Dae Kwon
- Advanced Nano-Surface Department (ANSD), Korea Institute of Materials Science (KIMS), Changwon 51508, Korea.
| | - Ho Sang Jung
- Advanced Nano-Surface Department (ANSD), Korea Institute of Materials Science (KIMS), Changwon 51508, Korea.
| | - Dong-Ho Kim
- Advanced Nano-Surface Department (ANSD), Korea Institute of Materials Science (KIMS), Changwon 51508, Korea.
| | - Sung-Gyu Park
- Advanced Nano-Surface Department (ANSD), Korea Institute of Materials Science (KIMS), Changwon 51508, Korea.
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8
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Su M, Li X, Zhang S, Yu F, Tian L, Jiang Y, Liu H. Self-Healing Plasmonic Metal Liquid as a Quantitative Surface-Enhanced Raman Scattering Analyzer in Two-Liquid-Phase Systems. Anal Chem 2019; 91:2288-2295. [DOI: 10.1021/acs.analchem.8b04893] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Mengke Su
- College of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, and Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
| | - Xiaoyun Li
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Shibin Zhang
- College of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Fanfan Yu
- College of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Li Tian
- College of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Yifan Jiang
- College of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Honglin Liu
- College of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, and Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, Hunan 410082, China
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9
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Ge M, Li P, Cao C, Li S, Lin D, Yang L. A long-period and high-stability three-dimensional surface-enhanced Raman scattering hotspot matrix. Chem Commun (Camb) 2019; 55:8647-8650. [DOI: 10.1039/c9cc02980j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A simple and effective method to construct a long-period and high-stability 3D hotspot matrix with the assistance of glycerol.
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Affiliation(s)
- Meihong Ge
- Center of Medical Physics and Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
- China
| | - Pan Li
- Center of Medical Physics and Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
- China
| | - Chentai Cao
- Center of Medical Physics and Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
- China
| | - Shaofei Li
- Center of Medical Physics and Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
- China
| | - Dongyue Lin
- Center of Medical Physics and Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
- China
| | - Liangbao Yang
- Center of Medical Physics and Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
- China
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10
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Zhang Z, Kneipp J. Mapping the Inhomogeneity in Plasmonic Catalysis on Supported Gold Nanoparticles Using Surface-Enhanced Raman Scattering Microspectroscopy. Anal Chem 2018; 90:9199-9205. [DOI: 10.1021/acs.analchem.8b01701] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhiyang Zhang
- Humboldt-Universität zu Berlin, Department of Chemistry and School of Analytical Sciences Adlershof (SALSA), Brook-Taylor-Straße 2, 12489 Berlin, Germany
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Straße 11, 12489 Berlin. Germany
| | - Janina Kneipp
- Humboldt-Universität zu Berlin, Department of Chemistry and School of Analytical Sciences Adlershof (SALSA), Brook-Taylor-Straße 2, 12489 Berlin, Germany
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Straße 11, 12489 Berlin. Germany
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11
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Kumar N, Su W, Veselý M, Weckhuysen BM, Pollard AJ, Wain AJ. Nanoscale chemical imaging of solid-liquid interfaces using tip-enhanced Raman spectroscopy. NANOSCALE 2018; 10:1815-1824. [PMID: 29308817 DOI: 10.1039/c7nr08257f] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Tip-enhanced Raman spectroscopy (TERS) is a powerful tool for non-destructive and label-free surface molecular mapping at the nanoscale. However, to date nanoscale resolution chemical imaging in a liquid environment has not been possible, in part due to the lack of robust TERS probes that are stable when immersed in a liquid. In this work, we have addressed this challenge by developing plasmonically-active TERS probes with a multilayer metal coating structure that can be successfully used within a liquid environment. Using these novel TERS probes, we have compared the plasmonic enhancement of TERS signals in air and water environments for both gap mode and non-gap mode configurations and show that in both cases the plasmonic enhancement decreases in water. To better understand the signal attenuation in water, we have performed numerical simulations that revealed a negative correlation between the electric field enhancement at the TERS probe-apex and the refractive index of the surrounding medium. Finally, using these robust probes we demonstrate TERS imaging with nanoscale spatial resolution in a water environment for the first time by employing single-wall carbon nanotubes as a model sample. Our findings are expected to broaden the scope of TERS to a range of scientific disciplines in which nanostructured solid-liquid interfaces play a key role.
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Affiliation(s)
- Naresh Kumar
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK.
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12
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Zeng Y, Ren JQ, Wang SK, Mai JM, Qu B, Zhang Y, Shen AG, Hu JM. Rapid and Reliable Detection of Alkaline Phosphatase by a Hot Spots Amplification Strategy Based on Well-Controlled Assembly on Single Nanoparticle. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29547-29553. [PMID: 28816042 DOI: 10.1021/acsami.7b09336] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The first appeal of clinical assay is always accurate and rapid. For alkaline phosphatase (ALP) monitoring in medical treatment, a rapid, reliable surface-enhanced Raman scattering (SERS) test kit is designed based on a "hot spots" amplification strategy. Consisting of alkyne-tagged Au nanoparticles (NPs), Ag+, and enzyme substrate, the packaged test kit can achieve one-step clinical assay of ALP in human serum within several minutes, while the operation is simple as it directly inputs the sample into the test kit. Here, Ag+ ions are adsorbed onto the surface of Au core due to electrostatic interaction between Ag+ and the negatively charged donor surface, then enzymatic biocatalysis of ALP triggers the reduction of Ag+ and subsequently silver growth occurs on every Au core surface in a controllable manner, forming "hot spots" between the Au core and Ag shell, in which the SERS signal of alkyne Raman reporters would be highly amplified. Meanwhile, ALP mediates a redox reaction of Ag+ as well as the dynamic silver coating process so the increase of SERS intensity is well-controlled and can be recognized with increasing amounts of the targets. Instead of conventional NP aggregation, this leads to a more reproducible result. In particular, the distinct Raman emission from our self-synthesized alkyne reporter is narrow and stable with zero background in the Raman silent region, suffering no optical fluctuation from biosystem inputs and the detection results are therefore reliable with a limit of detection of 0.01 U/L (2.3 pg/mL). Along with ultrahigh stability, this SERS test kit therefore is an important point-of-care candidate for a reliable, efficacious, and highly sensitive detection method for ALP, which potentially decreases the need for time-consuming clinical trials.
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Affiliation(s)
- Yi Zeng
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
| | - Jia-Qiang Ren
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
| | - Shao-Kai Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
| | - Jia-Ming Mai
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
| | - Bing Qu
- Department of General Surgery, China Resources & WISCO General Hospital , Wuhan, 430080, P. R. China
| | - Yan Zhang
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University , Wuhan 430060, P. R. China
| | - Ai-Guo Shen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
| | - Ji-Ming Hu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, P. R. China
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13
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Wu H, Li X, Xu J, Wang C, Rong Z, Xiao R, Wang S. Study on the SERS substrate composed of Au@Ag core-shell nanoparticles linked to SiO 2 spheres. INORG NANO-MET CHEM 2017. [DOI: 10.1080/15533174.2016.1212232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Huiyun Wu
- Beijing Institute of Radiation Medicine, Beijing, P. R. China
- Department of Science and Technology, Academy of Military Medical Sciences, Beijing, P. R. China
| | - Xin Li
- Department of Science and Technology, Academy of Military Medical Sciences, Beijing, P. R. China
| | - Jiawen Xu
- Beijing Institute of Radiation Medicine, Beijing, P. R. China
| | - Congwen Wang
- Beijing Institute of Radiation Medicine, Beijing, P. R. China
| | - Zhen Rong
- Beijing Institute of Radiation Medicine, Beijing, P. R. China
| | - Rui Xiao
- Beijing Institute of Radiation Medicine, Beijing, P. R. China
| | - Shengqi Wang
- Beijing Institute of Radiation Medicine, Beijing, P. R. China
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14
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Yan X, Li P, Zhou B, Tang X, Li X, Weng S, Yang L, Liu J. Optimal Hotspots of Dynamic Surfaced-Enhanced Raman Spectroscopy for Drugs Quantitative Detection. Anal Chem 2017; 89:4875-4881. [DOI: 10.1021/acs.analchem.6b04688] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiunan Yan
- Institute
of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Pan Li
- Institute
of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Binbin Zhou
- Institute
of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Xianghu Tang
- Institute
of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Xiaoyun Li
- Shanghai
Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Shizhuang Weng
- Institute
of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Liangbao Yang
- Institute
of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Jinhuai Liu
- Institute
of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
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15
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Yuan Y, Panwar N, Yap SHK, Wu Q, Zeng S, Xu J, Tjin SC, Song J, Qu J, Yong KT. SERS-based ultrasensitive sensing platform: An insight into design and practical applications. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.02.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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16
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Zhang C, You E, Jin Q, Yuan Y, Xu M, Ding S, Yao J, Tian Z. Observing the dynamic “hot spots” on two-dimensional Au nanoparticles monolayer film. Chem Commun (Camb) 2017; 53:6788-6791. [DOI: 10.1039/c7cc03020g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Interparticle spacing was controlled by evaporating water on 2D Au nanoparticles arrays.
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Affiliation(s)
- Chenjie Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Enming You
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- College of Chemistry and Chemical Engineering
- Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- Xiamen University
- Xiamen 361005
| | - Qi Jin
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yaxian Yuan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Minmin Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Songyuan Ding
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- College of Chemistry and Chemical Engineering
- Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- Xiamen University
- Xiamen 361005
| | - Jianlin Yao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Zhongqun Tian
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- College of Chemistry and Chemical Engineering
- Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- Xiamen University
- Xiamen 361005
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17
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Chen H, You T, Jiang L, Gao Y, Yin P. Creating dynamic SERS hotspots on the surface of pH-responsive microgels for direct detection of crystal violet in solution. RSC Adv 2017. [DOI: 10.1039/c7ra05567f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Creation of dynamic SERE hotspots controlled by pH values on the surface of gold nanoparticles-loaded pH-responsive P2VP microgels, using 4-mercaptobenzoic acid (PMBA) as a probe molecule.
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Affiliation(s)
- Huaxiang Chen
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beihang University
- Beijing
- China
| | - Tingting You
- School of Physics and Nuclear Energy Engineering
- Beihang University
- Beijing
- China
| | - Li Jiang
- College of Optical and Electronic Technology
- China Jiliang University
- China
| | - Yukun Gao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beihang University
- Beijing
- China
| | - Penggang Yin
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beihang University
- Beijing
- China
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18
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Qu LL, Liu YY, Liu MK, Yang GH, Li DW, Li HT. Highly Reproducible Ag NPs/CNT-Intercalated GO Membranes for Enrichment and SERS Detection of Antibiotics. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28180-28186. [PMID: 27670355 DOI: 10.1021/acsami.6b08790] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The increasing pollution of aquatic environments by antibiotics makes it necessary to develop efficient enrichment and sensitive detection methods for environmental antibiotics monitoring. In this work, silver nanoparticles and carbon nanotube-intercalated graphene oxide laminar membranes (Ag NPs/CNT-GO membranes) were successfully prepared for enrichment and surface-enhanced Raman scattering (SERS) detection of antibiotics. The prepared Ag NPs/CNT-GO membranes exhibited a high enrichment ability because of the π-π stacking and electrostatic interactions of GO toward antibiotic molecules, which enhanced the sensitivity of SERS measurements and enabled the antibiotics to be determined at sub-nM concentrations. In addition, the nanochannels created by the intercalation of CNTs into GO layers resulted in an 8-fold enhancement in the water permeance of Ag NPs/CNT-GO membranes compared to that of pure GO membranes. More importantly, the Ag NPs/CNT-GO membranes exhibited high reproducibility and long-term stability. The spot-to-spot variation in SERS intensity was less than 15%, and the SERS performance was maintained for at least 70 days. The Ag NPs/CNT-GO membranes were also used for SERS detection of antibiotics in real samples; the results showed that the characteristic peaks of antibiotics were obviously recognizable. Thus, the sensitive SERS detection of antibiotics based on Ag NPs/CNT-GO offers great potential for practical applications in environmental analysis.
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Affiliation(s)
- Lu Lu Qu
- School of Chemistry and Chemical Engineering, Jiangsu Normal University , Xuzhou, Jiangsu 221116, P. R. China
| | - Ying-Ya Liu
- Shanghai Key Laboratory of Functional Materials Chemistry & College of Chemistry and Molecular Engineering, East China University of Science and Technology , Shanghai 200237, P. R. China
| | - Ming-Kai Liu
- School of Chemistry and Chemical Engineering, Jiangsu Normal University , Xuzhou, Jiangsu 221116, P. R. China
| | - Guo-Hai Yang
- School of Chemistry and Chemical Engineering, Jiangsu Normal University , Xuzhou, Jiangsu 221116, P. R. China
| | - Da-Wei Li
- Shanghai Key Laboratory of Functional Materials Chemistry & College of Chemistry and Molecular Engineering, East China University of Science and Technology , Shanghai 200237, P. R. China
| | - Hai-Tao Li
- School of Chemistry and Chemical Engineering, Jiangsu Normal University , Xuzhou, Jiangsu 221116, P. R. China
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19
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Wang Y, Wang H, Wang Y, Shen Y, Xu S, Xu W. Plasmon-Driven Dynamic Response of a Hierarchically Structural Silver-Decorated Nanorod Array for Sub-10 nm Nanogaps. ACS APPLIED MATERIALS & INTERFACES 2016; 8:15623-15629. [PMID: 27250862 DOI: 10.1021/acsami.6b04173] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Plasmonic nanogaps serve as a useful configuration for light concentration and local field amplification owing to the extreme localization of surface plasmons. Here, a smart plasmonic nanogap device is fabricated by the dynamic response of an Ag decorated hierarchically structural vertical polymer nanorod array under the light irradiation. Seven nanorods in one unit bend because of plasmonic heating effect and they are centrally collected due to the attraction of the plasmon-induced polaritons, leading to the significantly enhanced local electromagnetic field at the sub-10 nm gaps among the constricted nanorod tops. Compared with tuning capillarity in microscale by wetting and drying, using light as external stimuli is much easier and more tunable in nanoscale. This plasmonic nanogap device is used for a surface-enhanced Raman scattering (SERS) substrate. Its hydrophobic surface with a contact angle of 142 degree can make the probed aqueous solution only access to the Ag tips of nanorods. Thus, the analytes can be driven to the "hot spot" regions where located at the tops of nanorods during the solvent evaporation process, which is beneficial to SERS detection. Discovery of this smart plasmon-driven process broadens the scope for further functionality of both the dynamic nanostructure design and the smart plasmonic devices in the communities of chemistry, biomedicine, and microfluidic engineering.
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Affiliation(s)
- Yi Wang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University , Changchun, Jilin, China
| | - Hailong Wang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University , Changchun, Jilin, China
| | - Yuyang Wang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University , Changchun, Jilin, China
| | - Yanting Shen
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University , Changchun, Jilin, China
| | - Shuping Xu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University , Changchun, Jilin, China
| | - Weiqing Xu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University , Changchun, Jilin, China
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20
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Liu H, Yang L, Liu J. Three-dimensional SERS hot spots for chemical sensing: Towards developing a practical analyzer. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.08.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Yan X, Li P, Yang L, Liu J. Time-dependent SERS spectra monitoring the dynamic adsorption behavior of bipyridine isomerides combined with bianalyte method. Analyst 2016; 141:5189-94. [DOI: 10.1039/c6an00771f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Based on the bianalyte method, time-dependent surface-enhanced Raman spectrosopy (SERS) spectra were applied to observe and study the competitive adsorption of bipyridine isomerides 2,2′-bpy and 4,4′-bpy.
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Affiliation(s)
- Xiunan Yan
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
- Department of Chemistry
| | - Pan Li
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
- Department of Chemistry
| | - Liangbao Yang
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
- Department of Chemistry
| | - Jinhuai Liu
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
- Department of Chemistry
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22
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Highly sensitive on-site detection of drugs adulterated in botanical dietary supplements using thin layer chromatography combined with dynamic surface enhanced Raman spectroscopy. Talanta 2016; 146:351-7. [DOI: 10.1016/j.talanta.2015.08.067] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 08/24/2015] [Accepted: 08/30/2015] [Indexed: 11/21/2022]
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23
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Han Z, Liu H, Meng J, Yang L, Liu J, Liu J. Portable Kit for Identification and Detection of Drugs in Human Urine Using Surface-Enhanced Raman Spectroscopy. Anal Chem 2015; 87:9500-6. [PMID: 26305415 DOI: 10.1021/acs.analchem.5b02899] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhenzhen Han
- Institute of Intelligent Machines and ‡Cancer Hospital, Hefei Institutes of Physical Science, Chinese Academy
of Sciences, Hefei 230031, China
| | - Honglin Liu
- Institute of Intelligent Machines and ‡Cancer Hospital, Hefei Institutes of Physical Science, Chinese Academy
of Sciences, Hefei 230031, China
| | - Juan Meng
- Institute of Intelligent Machines and ‡Cancer Hospital, Hefei Institutes of Physical Science, Chinese Academy
of Sciences, Hefei 230031, China
| | - Liangbao Yang
- Institute of Intelligent Machines and ‡Cancer Hospital, Hefei Institutes of Physical Science, Chinese Academy
of Sciences, Hefei 230031, China
| | - Jing Liu
- Institute of Intelligent Machines and ‡Cancer Hospital, Hefei Institutes of Physical Science, Chinese Academy
of Sciences, Hefei 230031, China
| | - Jinhuai Liu
- Institute of Intelligent Machines and ‡Cancer Hospital, Hefei Institutes of Physical Science, Chinese Academy
of Sciences, Hefei 230031, China
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24
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Ma B, Li P, Yang L, Liu J. Based on time and spatial-resolved SERS mapping strategies for detection of pesticides. Talanta 2015; 141:1-7. [DOI: 10.1016/j.talanta.2015.03.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 03/15/2015] [Accepted: 03/24/2015] [Indexed: 10/23/2022]
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25
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He X, Wang H, Li Z, Chen D, Liu J, Zhang Q. Ultrasensitive SERS detection of trinitrotoluene through capillarity-constructed reversible hot spots based on ZnO-Ag nanorod hybrids. NANOSCALE 2015; 7:8619-26. [PMID: 25899553 DOI: 10.1039/c4nr07655a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A simple and efficient self-approach strategy was used to apply ultrasensitivity and self-revive ZnO-Ag hybrid surface-enhanced Raman scattering (SERS) sensors for the highly sensitive and selective detection of explosive TNT in both solution and vapour conditions. The good ultrasensitive sensing performance is a result of the abundant Raman hot spots, which were spontaneously formed in a reversible way by the self-approaching of flexible ZnO-Ag hybrid nanorods driven by the capillary force of solvent evaporation. Moreover, the enhancement effect was repeatedly renewed by the reconstruction of molecular bridges, which could selectively detect TNT with a lower limit of 4 × 10(-14) M. In addition, TNT vapor was also tested under this sensor, whereby once the ZnO-Ag NRs hybrid substrate was dipped in TNT, this substrate could detect the existence of TNT even in 5 detection cycles via a capillarity-constructed reversible hot spots approach. Compared with other pure Ag-based SERS sensors, this ZnO-Ag hybrid SERS sensor could rapidly self-revive SERS-activity by simple UV light irradiation and could retain stable SERS sensitivity for one month when used for TNT detection. This stable and ultrasensitive SERS substrate demonstrates a new route to eliminate the oxidized inactive problem of traditional Ag-based SERS substrates and suggests promising use in the applications of such hybrids as real-time online sensors for explosives detection.
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Affiliation(s)
- Xuan He
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China.
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26
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Jiang L, Liang X, You T, Yin P, Wang H, Guo L, Yang S. A sensitive SERS substrate based on Au/TiO2/Au nanosheets. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 142:50-54. [PMID: 25699693 DOI: 10.1016/j.saa.2015.01.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 12/22/2014] [Accepted: 01/14/2015] [Indexed: 06/04/2023]
Abstract
Sensitive SERS substrates based on Au/TiO2/Au nanosheet have been prepared by physically sputtering Au nanoparticles onto fabricated TiO2 nanosheets. The Au/TiO2/Au nanosheets show much stronger SERS signal as compared to normal Au/Ti substrates by increasing surface area and effectively inducing plasmonic coupling between adjoining Au nanoparticles. In addition, influence factors such as concentration of probe solution and deposition time of gold nanoparticles were discussed. This study provides an easy-prepared and label-free substrate for the detection of biomolecule.
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Affiliation(s)
- Li Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China
| | - Xiu Liang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China
| | - Tingting You
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China
| | - Penggang Yin
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China.
| | - Hua Wang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China
| | - Lin Guo
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China.
| | - Shihe Yang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China; Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
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27
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Zhan Z, Xu R, Mi Y, Zhao H, Lei Y. Highly Controllable Surface Plasmon Resonance Property by Heights of Ordered Nanoparticle Arrays Fabricated via a Nonlithographic Route. ACS NANO 2015; 9:4583-4590. [PMID: 25812724 DOI: 10.1021/acsnano.5b01226] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Perfectly ordered nanoparticle arrays are fabricated on large-area substrates (>cm(2)) via a cost-effective nonlithographic route. Different surface plasmon resonance (SPR) modes focus consequently on their own positions due to the identical shape and uniform size and distance of these plasmonic metallic nanoparticles (Ag and Au). On the basis of this and FDTD (finite-difference time-domain) simulation, this work reveals the variation of all SPR parameters (position, intensity, width, and mode) with nanoparticle heights, which demonstrates that the effect of heights are different in various stages. On increasing the heights, the major dipole SPR mode precisely blue-shifts from the near-infrared to the visible region with intensity strengthening, a peak narrowing effect, and multipole modes excitation in the UV-vis range. The intensity of multipole modes can be manipulated to be equal to or even greater than the major dipole SPR mode. After coating conformal TiO2 shells on these nanoparticle arrays by atomic layer deposition, the strengthening of the SPR modes with increasing the heights results in the multiplying of the photocurrent (from ∼2.5 to a maximum 90 μA cm(-2)) in this plasmonic-metal-semiconductor-incorporated system. This simple but effective adjustment for all SPR parameters provides guidance for the future design of plasmonic metallic nanostructures, which is significant for SPR applications.
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28
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Sun Y, Han Z, Liu H, He S, Yang L, Liu J. Three-dimensional hotspots in evaporating nanoparticle sols for ultrahigh Raman scattering: solid-liquid interface effects. NANOSCALE 2015; 7:6619-6626. [PMID: 25794035 DOI: 10.1039/c5nr00359h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Three-dimensional (3D) hotspots for ultrahigh surface-enhanced Raman scattering (SERS) has been experimentally demonstrated by evaporating a droplet of citrate-Ag sols on both hydrophobic and hydrophilic flat surfaces. Interestingly, the hydrophobic surface increased the Raman enhancement by two orders of magnitude and exhibits a better signal stability than the hydrophilic one. This study highlights the differences between hydrophilic and hydrophobic surfaces in enhanced Raman scattering by the use of extremely diluted rhodamine 6G (R6G) as the SERS reporter. In situ synchrotron-radiation small-angle X-ray scattering (SR-SAXS) was employed to explore the evolution of the 3D geometry of Ag nanoparticles in a single droplet and verify the influence mechanism of these two kinds of surface. The ideal situation of 3D self-assembly of nanoparticles in the evaporation process is a collaborative behaviour, but our results evidenced that a progressive 3D self-assembly of nanoparticles was more preferred due to the interface effects. Our experimental data derived from in situ SR-SAXS reveals that a truly distinct 3D geometry of the Ag particles develops during the evaporation process on both hydrophilic and hydrophobic surfaces. In this type of 3D geometry, the increased uniformity of the interparticle distance induced a sharp peak of the SR-SAXS signal, differing significantly from the dry state. In particular, the fluorosilylated surface reduces the interaction with particles and decreases the electrostatic adsorption on the flat surface, which helps to control the interparticle distance to remain within a small range, produce a larger number of hotspots in 3D space, and amplify the SERS enhancement accordingly.
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Affiliation(s)
- Yudie Sun
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China.
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29
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Han Z, Liu H, Wang B, Weng S, Yang L, Liu J. Three-Dimensional Surface-Enhanced Raman Scattering Hotspots in Spherical Colloidal Superstructure for Identification and Detection of Drugs in Human Urine. Anal Chem 2015; 87:4821-8. [DOI: 10.1021/acs.analchem.5b00176] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Zhenzhen Han
- Institute of Intelligent
Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Honglin Liu
- Institute of Intelligent
Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Bin Wang
- Institute of Intelligent
Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Shizhuang Weng
- Institute of Intelligent
Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Liangbao Yang
- Institute of Intelligent
Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Jinhuai Liu
- Institute of Intelligent
Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
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30
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Hakonen A, Andersson PO, Stenbæk Schmidt M, Rindzevicius T, Käll M. Explosive and chemical threat detection by surface-enhanced Raman scattering: a review. Anal Chim Acta 2015; 893:1-13. [PMID: 26398417 DOI: 10.1016/j.aca.2015.04.010] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 03/16/2015] [Accepted: 04/03/2015] [Indexed: 01/18/2023]
Abstract
Acts of terror and warfare threats are challenging tasks for defense agencies around the world and of growing importance to security conscious policy makers and the general public. Explosives and chemical warfare agents are two of the major concerns in this context, as illustrated by the recent Boston Marathon bombing and nerve gas attacks on civilians in the Middle East. To prevent such tragic disasters, security personnel must be able to find, identify and deactivate the threats at multiple locations and levels. This involves major technical and practical challenges, such as detection of ultra-low quantities of hazardous compounds at remote locations for anti-terror purposes and monitoring of environmental sanitation of dumped or left behind toxic substances and explosives. Surface-enhanced Raman scattering (SERS) is one of todays most interesting and rapidly developing methods for label-free ultrasensitive vibrational "fingerprinting" of a variety of molecular compounds. Performance highlights include attomolar detection of TNT and DNT explosives, a sensitivity that few, if any, other technique can compete with. Moreover, instrumentation needed for SERS analysis are becoming progressively better, smaller and cheaper, and can today be acquired for a retail price close to 10,000 US$. This contribution aims to give a comprehensive overview of SERS as a technique for detection of explosives and chemical threats. We discuss the prospects of SERS becoming a major tool for convenient in-situ threat identification and we summarize existing SERS detection methods and substrates with particular focus on ultra-sensitive real-time detection. General concepts, detection capabilities and perspectives are discussed in order to guide potential users of the technique for homeland security and anti-warfare purposes.
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Affiliation(s)
- Aron Hakonen
- Division of Bionanophotonics, Department of Applied Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden.
| | - Per Ola Andersson
- Swedish Defense Research Agency FOI, Division of CBRN Defence & Security, SE-90182 Umeå, Sweden
| | - Michael Stenbæk Schmidt
- DTU Nanotech, Technical University of Denmark, Department of Micro- and Nanotechnology, Ørsteds Plads, Building 345 East, 2800 Kgs. Lyngby, Denmark
| | - Tomas Rindzevicius
- DTU Nanotech, Technical University of Denmark, Department of Micro- and Nanotechnology, Ørsteds Plads, Building 345 East, 2800 Kgs. Lyngby, Denmark
| | - Mikael Käll
- Division of Bionanophotonics, Department of Applied Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
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31
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Wang H, Fang J, Xu J, Wang F, Sun B, He S, Sun G, Liu H. A hanging plasmonic droplet: three-dimensional SERS hotspots for a highly sensitive multiplex detection of amino acids. Analyst 2015; 140:2973-8. [PMID: 25799000 DOI: 10.1039/c5an00232j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
3D hotspots in a hanging plasmonic droplet result in an ultrahigh Raman Scattering for the ultratrace and multiplex identification of amino acids.
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Affiliation(s)
- Hongyan Wang
- Department of Oncology
- The First Affiliated Hospital of Anhui Medical University
- Hefei 230022
- P.R. China
| | - Jinmei Fang
- Department of Oncology
- The First Affiliated Hospital of Anhui Medical University
- Hefei 230022
- P.R. China
| | - Jifei Xu
- Department of Oncology
- The First Affiliated Hospital of Anhui Medical University
- Hefei 230022
- P.R. China
| | - Fan Wang
- Department of Oncology
- The First Affiliated Hospital of Anhui Medical University
- Hefei 230022
- P.R. China
| | - Bai Sun
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- P.R. China
| | - Shengnan He
- No. 38 Research Institute of China Electronics
- Technology Group Corporation
- Hefei 230088
- P.R. China
| | - Guoping Sun
- Department of Oncology
- The First Affiliated Hospital of Anhui Medical University
- Hefei 230022
- P.R. China
| | - Honglin Liu
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- P.R. China
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32
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Ma Y, Liu H, Han Z, Yang L, Liu J. Highly-reproducible Raman scattering of NaYF4:Yb,Er@SiO2@Ag for methylamphetamine detection under near-infrared laser excitation. Analyst 2015; 140:5268-75. [DOI: 10.1039/c5an00441a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
NaYF4:Yb,Er@SiO2@Ag displays highly-reproducible Raman enhancement ability for methylamphetamine detection under near-infrared excitation.
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Affiliation(s)
- Yongmei Ma
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031, China
| | - Honglin Liu
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031, China
| | - Zhenzhen Han
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031, China
| | - Liangbao Yang
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031, China
| | - Jinhuai Liu
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031, China
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33
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Yang L, Li P, Liu H, Tang X, Liu J. A dynamic surface enhanced Raman spectroscopy method for ultra-sensitive detection: from the wet state to the dry state. Chem Soc Rev 2015; 44:2837-48. [DOI: 10.1039/c4cs00509k] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A dynamic surface-enhanced Raman spectroscopy method from the wet state to the dry state.
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Affiliation(s)
- Liangbao Yang
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
- Department of Chemistry
| | - Pan Li
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
- Department of Chemistry
| | - Honglin Liu
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
| | - Xianghu Tang
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
| | - Jinhuai Liu
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
- Department of Chemistry
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34
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Radziuk D, Moehwald H. Prospects for plasmonic hot spots in single molecule SERS towards the chemical imaging of live cells. Phys Chem Chem Phys 2015; 17:21072-93. [DOI: 10.1039/c4cp04946b] [Citation(s) in RCA: 216] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Single molecule surface enhanced Raman scattering (SM-SERS) is a highly local effect occurring at sharp edges, interparticle junctions and crevices or other geometries with a sharp nanoroughness of plasmonic nanostructures (“hot spots”) for an analyte detection.
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Affiliation(s)
- Darya Radziuk
- Max-Planck Institute of Colloids and Interfaces
- Department of Interfaces
- Germany
| | - Helmuth Moehwald
- Max-Planck Institute of Colloids and Interfaces
- Department of Interfaces
- Germany
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35
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Polystyrene/Ag nanoparticles as dynamic surface-enhanced Raman spectroscopy substrates for sensitive detection of organophosphorus pesticides. Talanta 2014; 127:269-75. [DOI: 10.1016/j.talanta.2014.03.075] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 03/23/2014] [Accepted: 03/29/2014] [Indexed: 11/20/2022]
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36
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Abell JL, Driskell JD, Zhao Y. Controllable and reversible hot spot formation on silver nanorod arrays. Chem Commun (Camb) 2014; 50:106-8. [PMID: 24217331 DOI: 10.1039/c3cc45899g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reversible hot spot formation is achieved for free-standing silver nanorod (AgNR) arrays fabricated by oblique angle deposition and modified with a hydrophilic surface coating.
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Affiliation(s)
- Justin L Abell
- Nanoscale Engineering and Science Center, University of Georgia, Athens, GA, USA 30602.
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37
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Zhu Y, Li M, Yu D, Yang L. A novel paper rag as 'D-SERS' substrate for detection of pesticide residues at various peels. Talanta 2014; 128:117-24. [PMID: 25059138 DOI: 10.1016/j.talanta.2014.04.066] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 04/17/2014] [Accepted: 04/22/2014] [Indexed: 11/16/2022]
Abstract
Many important considerations in the design of practical Surface enhanced Raman spectroscopy (SERS) substrates are necessary, such as the low cost, simple preparation, mass production and high efficiency of sample collection, which the conventional rigid substrates are lack of. In this work, practical SERS substrates based on deposition of silver nanoparticles (Ag NPs) on commercially available low-cost filter paper were prepared by simple silver mirror reaction in a large scale, and utilized for rapid, portable and accurate identification and detection of pesticide residues at various peels. Compared with conventional substrates, this novel SERS substrate dramatically enhanced the sample collection efficiency by simply swabbing paper-based device across different surfaces without destroying the sample, meanwhile avoiding the substrate signal of real-world samples. Considering their low cost, portability, simplicity and high sample collection efficiency, Ag NP-decorated filter paper, as practical SERS substrate, are used in solving critical problems for detection of pesticide residues at various peels. SERS experiments were carried out on Ag NP-decorated filter paper combined with 'dynamic SERS' (D-SERS) due to its high detection sensitivity. The excellent detection performance of the Ag NP-based filter paper was demonstrated by detection thiram and paraoxon residues at various peels. Besides, the stability and reproducibility of the practical substrates were also involved.
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Affiliation(s)
- Yiqun Zhu
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China; School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China
| | - Minqiang Li
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Daoyang Yu
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
| | - Liangbao Yang
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
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38
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Lovera P, Creedon N, Alatawi H, Mitchell M, Burke M, Quinn AJ, O'Riordan A. Low-cost silver capped polystyrene nanotube arrays as super-hydrophobic substrates for SERS applications. NANOTECHNOLOGY 2014; 25:175502. [PMID: 24717806 DOI: 10.1088/0957-4484/25/17/175502] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this paper, we describe the fabrication, simulation and characterization of dense arrays of freestanding silver capped polystyrene nanotubes, and demonstrate their suitability for surface enhanced Raman scattering (SERS) applications. Substrates are fabricated in a rapid, low-cost and scalable way by melt wetting of polystyrene (PS) in an anodized alumina (AAO) template, followed by silver evaporation. Scanning electron microscopy reveals that substrates are composed of a dense array of freestanding polystyrene nanotubes topped by silver nanocaps. SERS characterization of the substrates, employing a monolayer of 4-aminothiophenol (4-ABT) as a model molecule, exhibits an enhancement factor of ∼1.6 × 10(6), in agreement with 3D finite difference time domain simulations. Contact angle measurements of the substrates revealed super-hydrophobic properties, allowing pre-concentration of target analyte into a small volume. These super-hydrophobic properties of the samples are taken advantage of for sensitive detection of the organic pollutant crystal violet, with detection down to ∼400 ppt in a 2 μl aliquot demonstrated.
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Affiliation(s)
- Pierre Lovera
- Nanotechnology Group, Tyndall National Institute, University College Cork, Lee Maltings, Cork, Ireland
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39
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Liu H, Yang Z, Meng L, Sun Y, Wang J, Yang L, Liu J, Tian Z. Three-Dimensional and Time-Ordered Surface-Enhanced Raman Scattering Hotspot Matrix. J Am Chem Soc 2014; 136:5332-41. [DOI: 10.1021/ja501951v] [Citation(s) in RCA: 261] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Honglin Liu
- Institute
of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China
| | - Zhilin Yang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lingyan Meng
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yudie Sun
- Institute
of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China
| | - Jie Wang
- Shanghai
Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Liangbao Yang
- Institute
of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China
| | - Jinhuai Liu
- Institute
of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China
| | - Zhongqun Tian
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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40
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He X, Wang H, Zhang Q, Li Z, Wang X. Exotic 3D Hierarchical ZnO-Ag Hybrids as Recyclable Surface-Enhanced Raman Scattering Substrates for Multifold Organic Pollutant Detection. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402014] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Ma Y, Liu H, Han Z, Yang L, Sun B, Liu J. Raman scattering and plasmonic photocatalysis of single particles of NaYF4:Yb,Er@Ag under near-infrared laser excitation. Analyst 2014; 139:5983-8. [DOI: 10.1039/c4an01202j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Upconversion material-noble metal composites initiate greatly improved Raman scattering and plasmon photocatalysis, promising a novel direction for fabricating SERS-active nanostructures.
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Affiliation(s)
- Yongmei Ma
- Institute of Intelligent Machines
- Chinese Academy of Science
- Hefei, China
| | - Honglin Liu
- Institute of Intelligent Machines
- Chinese Academy of Science
- Hefei, China
| | - Zhenzhen Han
- Institute of Intelligent Machines
- Chinese Academy of Science
- Hefei, China
| | - Liangbao Yang
- Institute of Intelligent Machines
- Chinese Academy of Science
- Hefei, China
| | - Bai Sun
- Institute of Intelligent Machines
- Chinese Academy of Science
- Hefei, China
| | - Jinhuai Liu
- Institute of Intelligent Machines
- Chinese Academy of Science
- Hefei, China
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42
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He X, Wang H, Li Z, Chen D, Zhang Q. ZnO–Ag hybrids for ultrasensitive detection of trinitrotoluene by surface-enhanced Raman spectroscopy. Phys Chem Chem Phys 2014; 16:14706-12. [DOI: 10.1039/c4cp01723d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Low-cost SERS sensors were fabricated by 4-ATP-functionalized ZnO–Ag hybrid substrates for TNT detection with high sensitivity, selectivity and reproducibility.
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Affiliation(s)
- Xuan He
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang 621900, China
| | - Hui Wang
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang 621900, China
| | - Zhongbo Li
- Key Laboratory of Materials Physics
- Anhui
- Key Laboratory of Nanomaterials and Nanostructures
- Institute of Solid State Physics
- Chinese Academy of Sciences
| | - Dong Chen
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang 621900, China
| | - Qi Zhang
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang 621900, China
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43
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Zhao Y, Liu X, Lei DY, Chai Y. Effects of surface roughness of Ag thin films on surface-enhanced Raman spectroscopy of graphene: spatial nonlocality and physisorption strain. NANOSCALE 2014; 6:1311-7. [PMID: 24336904 DOI: 10.1039/c3nr05303b] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Metallic nanostructures are widely used for surface-enhanced Raman spectroscopy (SERS). Nanoscale surface corrugation significantly affects the localized plasmon response and the subsequent Raman intensity of the molecules in close proximity to the nanostructures. Experimentally, the surface roughness of metal films can be controlled by adjusting the deposition conditions, and the resulting localized near-field properties can be probed by measuring the Raman spectrum of the conformally coated monolayer graphene. The well-known Raman characteristics of graphene and its atomic-level 2D nature make it an ideal test-bed for SERS measurements on corrugated metal films. In this work, we experimentally and theoretically study the effects of surface roughness of Ag thin films on the SERS of graphene. We find that the nonlocality effect of the metal dielectric response has to be taken into account for more accurate prediction of the SERS enhancement at large surface roughness. Our results also reveal that the effect of physisorption strain should be included to understand the Raman peak shift and spectral broadening. These observations are fundamentally important for understanding the SERS from metallic nanostructures with sub-nanoscale corrugation.
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Affiliation(s)
- Yuda Zhao
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People's Republic of China.
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44
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Yang Y, Li ZY, Nogami M, Tanemura M, Huang Z. The controlled fabrication of “Tip-On-Tip” TERS probes. RSC Adv 2014. [DOI: 10.1039/c3ra44532a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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45
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Zhou Y, Li X, Ren X, Yang L, Liu J. Designing and fabricating double resonance substrate with metallic nanoparticles–metallic grating coupling system for highly intensified surface-enhanced Raman spectroscopy. Analyst 2014; 139:4799-805. [DOI: 10.1039/c4an00540f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We propose and fabricate a novel double-resonance SERS system by strategically assembling Au NPs separated by a MoO3nanospacer from an Ag grating film.
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Affiliation(s)
- Ying Zhou
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, China
- School of Chemistry and Chemical Engineering
- Anhui University
| | - Xuanhua Li
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, China
| | - Xingang Ren
- Key Lab of Intelligent Computing and Signal Processing
- Anhui University
- Hefei, China
| | - Liangbao Yang
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, China
- School of Chemistry and Chemical Engineering
- Anhui University
| | - Jinhuai Liu
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei, China
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46
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Yang X, Wang J, Su D, Xia Q, Chai F, Wang C, Qu F. Fluorescent detection of TNT and 4-nitrophenol by BSA Au nanoclusters. Dalton Trans 2014; 43:10057-63. [DOI: 10.1039/c4dt00490f] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Rapid and sensitive detection of 2,4,6-trinitrotoluene (TNT) and 4-nitrophenol (4-NP) has attracted considerable attention due to their wide applications as nitroaromatic explosive materials.
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Affiliation(s)
- Xin Yang
- Key Laboratory of Design and Synthesis of Functional Materials and Green Catalysis
- Colleges of Heilongjiang Province
- Harbin Normal University
- , P.R. China
| | - Junhai Wang
- Key Laboratory of Design and Synthesis of Functional Materials and Green Catalysis
- Colleges of Heilongjiang Province
- Harbin Normal University
- , P.R. China
| | - Dongyue Su
- Key Laboratory of Design and Synthesis of Functional Materials and Green Catalysis
- Colleges of Heilongjiang Province
- Harbin Normal University
- , P.R. China
| | - Qingdong Xia
- Key Laboratory of Design and Synthesis of Functional Materials and Green Catalysis
- Colleges of Heilongjiang Province
- Harbin Normal University
- , P.R. China
| | - Fang Chai
- Key Laboratory of Design and Synthesis of Functional Materials and Green Catalysis
- Colleges of Heilongjiang Province
- Harbin Normal University
- , P.R. China
| | - Chungang Wang
- Faculty of Chemistry
- Northeast Normal University
- Changchun, P.R. China
| | - Fengyu Qu
- Key Laboratory of Design and Synthesis of Functional Materials and Green Catalysis
- Colleges of Heilongjiang Province
- Harbin Normal University
- , P.R. China
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