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Horne J, Beckers P, Sacré PY, De Bleye C, Francotte P, Thelen N, Hubert P, Ziemons E, Hubert C. Optimisation of a Microwave Synthesis of Silver Nanoparticles by a Quality by Design Approach to Improve SERS Analytical Performances. Molecules 2024; 29:3442. [PMID: 39065020 PMCID: PMC11280077 DOI: 10.3390/molecules29143442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 07/19/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024] Open
Abstract
A major limitation preventing the use of surface-enhanced Raman scattering (SERS) in routine analyses is the signal variability due to the heterogeneity of metallic nanoparticles used as SERS substrates. This study aimed to robustly optimise a synthesis process of silver nanoparticles to improve the measured SERS signal repeatability and the protocol synthesis repeatability. The process is inspired by a chemical reduction method associated with microwave irradiation to guarantee better controlled and uniform heating. The innovative Quality by Design strategy was implemented to optimise the different parameters of the process. A preliminary investigation design was firstly carried out to evaluate the influence of four parameters selected by means of an Ishikawa diagram. The critical quality attributes were to maximise the intensity of the SERS response and minimise its variance. The reaction time, temperature and stirring speed are critical process parameters. These were optimised using an I-optimal design. A robust operating zone covering the optimal reaction conditions (3.36 min-130 °C-600 rpm) associated with a probability of success was modelled. Validation of this point confirmed the prediction with intra- and inter-batch variabilities of less than 15%. In conclusion, this study successfully optimised silver nanoparticles by a rapid, low cost and simple technique enhancing the quantitative perspectives of SERS.
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Affiliation(s)
- Julie Horne
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Pierre Beckers
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Pierre-Yves Sacré
- Research Support Unit in Chemometrics, Department of Pharmacy, CIRM, University of Liege (ULiege), 4000 Liege, Belgium
| | - Charlotte De Bleye
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Pierre Francotte
- Laboratory of Medicinal Chemistry, Department of Pharmacy, CIRM, University of Liege (ULiege), 4000 Liege, Belgium
| | - Nicolas Thelen
- GIGA-Neurosciences, Cell Biology, University of Liege (ULiege), 4000 Liege, Belgium
| | - Philippe Hubert
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Eric Ziemons
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Cédric Hubert
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
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Bi X, Lin L, Chen Z, Ye J. Artificial Intelligence for Surface-Enhanced Raman Spectroscopy. SMALL METHODS 2024; 8:e2301243. [PMID: 37888799 DOI: 10.1002/smtd.202301243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/11/2023] [Indexed: 10/28/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS), well acknowledged as a fingerprinting and sensitive analytical technique, has exerted high applicational value in a broad range of fields including biomedicine, environmental protection, food safety among the others. In the endless pursuit of ever-sensitive, robust, and comprehensive sensing and imaging, advancements keep emerging in the whole pipeline of SERS, from the design of SERS substrates and reporter molecules, synthetic route planning, instrument refinement, to data preprocessing and analysis methods. Artificial intelligence (AI), which is created to imitate and eventually exceed human behaviors, has exhibited its power in learning high-level representations and recognizing complicated patterns with exceptional automaticity. Therefore, facing up with the intertwining influential factors and explosive data size, AI has been increasingly leveraged in all the above-mentioned aspects in SERS, presenting elite efficiency in accelerating systematic optimization and deepening understanding about the fundamental physics and spectral data, which far transcends human labors and conventional computations. In this review, the recent progresses in SERS are summarized through the integration of AI, and new insights of the challenges and perspectives are provided in aim to better gear SERS toward the fast track.
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Affiliation(s)
- Xinyuan Bi
- State Key Laboratory of Systems Medicine for Cancer, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Li Lin
- State Key Laboratory of Systems Medicine for Cancer, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Zhou Chen
- State Key Laboratory of Systems Medicine for Cancer, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Jian Ye
- State Key Laboratory of Systems Medicine for Cancer, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
- Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
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Wu JZ, Ghopry SA, Liu B, Shultz A. Metallic and Non-Metallic Plasmonic Nanostructures for LSPR Sensors. MICROMACHINES 2023; 14:1393. [PMID: 37512705 PMCID: PMC10386751 DOI: 10.3390/mi14071393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/27/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023]
Abstract
Localized surface plasmonic resonance (LSPR) provides a unique scheme for light management and has been demonstrated across a large variety of metallic nanostructures. More recently, non-metallic nanostructures of two-dimensional atomic materials and heterostructures have emerged as a promising, low-cost alternative in order to generate strong LSPR. In this paper, a review of the recent progress made on non-metallic LSPR nanostructures will be provided in comparison with their metallic counterparts. A few applications in optoelectronics and sensors will be highlighted. In addition, the remaining challenges and future perspectives will be discussed.
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Affiliation(s)
- Judy Z Wu
- Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USA
| | - Samar Ali Ghopry
- Department of Physics, Jazan University, Jazan 45142, Saudi Arabia
| | - Bo Liu
- Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USA
| | - Andrew Shultz
- Department of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USA
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Qin H, Zhao S, Gong H, Yu Z, Chen Q, Liang P, Zhang D. Recent Progress in the Application of Metal Organic Frameworks in Surface-Enhanced Raman Scattering Detection. BIOSENSORS 2023; 13:bios13040479. [PMID: 37185554 PMCID: PMC10136131 DOI: 10.3390/bios13040479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/10/2023] [Accepted: 04/13/2023] [Indexed: 05/17/2023]
Abstract
Metal-organic framework (MOF) compounds are centered on metal ions or metal ion clusters, forming lattices with a highly ordered periodic porous network structure by connecting organic ligands. As MOFs have the advantages of high porosity, large specific surface area, controllable pore size, etc., they are widely used in gas storage, catalysis, adsorption, separation and other fields. SERS substrate based on MOFs can not only improve the sensitivity of SERS analysis but also solve the problem of easy aggregation of substrate nanoparticles. By combining MOFs with SERS, SERS performance is further improved, and tremendous research progress has been made in recent years. In this review, three methods of preparing MOF-based SERS substrates are introduced, and the latest applications of MOF-based SERS substrates in biosensors, the environment, gases and medical treatments are discussed. Finally, the current status and prospects of MOF-based SERS analysis are summarized.
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Affiliation(s)
- Haojia Qin
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
| | - Shuai Zhao
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
| | - Huaping Gong
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
| | - Zhi Yu
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Qiang Chen
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China
| | - Pei Liang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
| | - De Zhang
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
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Shi L, Wang C, Su D, Zhang L, Wang P, Fang Y. Charge transfer effect: a new assignment of the abnormal optical absorption band of gold nanoparticles. NANOTECHNOLOGY 2023; 34:135202. [PMID: 36595301 DOI: 10.1088/1361-6528/aca80f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
As a significant accompanying phenomenon of surface-enhanced Raman scattering (SERS), the addition of foreign molecules to colloidal gold or silver nanoparticles results in a new abnormal optical absorption (AOA) band, which usually appears in the long-wavelength region. The assignment of this AOA band has long been debated as an important issue that is desired to be addressed in the SERS field, which is crucial for a clear understanding of the SERS enhancement mechanism and beneficial to surface plasmonics. In this study, both the calculated and measured optical absorptions of gold nanoparticle monomers and dimers as well as their interactions with adsorbed molecules, showed that the AOA band in the long-wavelength region which was assigned to the characteristic longitudinal localized surface plasmon resonance (LSPR) effect of gold nanoparticle chain aggregates in conventional SERS electromagnetic theory, should be attributed to the charge-transfer resonance absorption from gold nanoparticles to adsorbed molecules. This was further confirmed by the corresponding SERS effects. As the excitation wavelength at 785 nm was resonant with the broad AOA band centered at 750 nm, the SERS peaks of the adsorbed pyridine molecules could be dramatically enhanced due to the charge-transfer resonance effect. In contrast, under an excitation wavelength of 532 nm, the SERS peaks appeared very weak, although the excitation wavelength was resonant with the LSPR absorption band of the individual gold nanoparticles.
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Affiliation(s)
- Lexian Shi
- Beijing Key Laboratory for Nano-photonics and Nano-structure, Department of Physics, Capital Normal University, Beijing 100048, People's Republic of China
| | - Can Wang
- Beijing Key Laboratory for Nano-photonics and Nano-structure, Department of Physics, Capital Normal University, Beijing 100048, People's Republic of China
| | - Dong Su
- Beijing Key Laboratory for Nano-photonics and Nano-structure, Department of Physics, Capital Normal University, Beijing 100048, People's Republic of China
| | - Lisheng Zhang
- Beijing Key Laboratory for Nano-photonics and Nano-structure, Department of Physics, Capital Normal University, Beijing 100048, People's Republic of China
| | - Peijie Wang
- Beijing Key Laboratory for Nano-photonics and Nano-structure, Department of Physics, Capital Normal University, Beijing 100048, People's Republic of China
| | - Yan Fang
- Beijing Key Laboratory for Nano-photonics and Nano-structure, Department of Physics, Capital Normal University, Beijing 100048, People's Republic of China
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Zhang X, Jin Y, Wang Y, Liang P, Zou M, Li S, Liu J, Qi X, Zhang X, Shang Z, Chen Y, Chen Q. Measurement of trace bisphenol A in drinking water with combination of immunochromatographic detection technology and SERS method. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120519. [PMID: 34801391 DOI: 10.1016/j.saa.2021.120519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
Sensitive and selective detection of target analyte is very important in many fields such as commodity inspection and quality monitoring. In this work, based on the principle of competitive immunoassay, surface-enhanced Raman spectroscopy (SERS) was used to establish a rapid and highly sensitive method for the detection of trace amounts of bisphenol A in water. Here, Raman molecule 5,5-dithiobis-2-nitrobenzoic acid and anti-BPA antibody were conjugated with Au (core)@Ag (shell) nanoparticle to serve as SERS nanoprobe. After the SERS nanoprobe is combined with the substance to be tested, it uses the siphon effect to pass through the test line and the charging line on the test strip. And the Raman test was performed on the T line with a Raman spectrometer. The detection limitation was 0.1 pg/mL. Compared with the reported gas chromatography, liquid chromatography, fluorescence analysis, and other detection methods, SERS ICA does not demand complicated sample preparation procedures, and has the advantages of simple detection methods, quick results, High sensitivity, good specificity, and low technical demands for laboratory environment and testers. In addition, Raman spectrometers have gradually developed to be portable, making it easier to meet the needs of on-site rapid and highly sensitive detection, and will show broad prospects for applications in the fields of biomedical diagnosis and food safety monitoring.
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Affiliation(s)
- Xiubin Zhang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Yong Jin
- Chinese Academy of Inspection and Quarantine (CAIQ), No. A 3, Gaobeidian Road, Chaoyang District, Beijing 100123, China
| | - Yufeng Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Pei Liang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China.
| | - Minqiang Zou
- Chinese Academy of Inspection and Quarantine (CAIQ), No. A 3, Gaobeidian Road, Chaoyang District, Beijing 100123, China.
| | - Suyang Li
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Jian Liu
- Chinese Academy of Inspection and Quarantine (CAIQ), No. A 3, Gaobeidian Road, Chaoyang District, Beijing 100123, China
| | - Xiaohua Qi
- Chinese Academy of Inspection and Quarantine (CAIQ), No. A 3, Gaobeidian Road, Chaoyang District, Beijing 100123, China
| | - Xiaohua Zhang
- China Inspection Laboratory Technologies Co. Ltd (CILT), Beijing 100123, China
| | - Ziyang Shang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Yan Chen
- Chinese Academy of Inspection and Quarantine (CAIQ), No. A 3, Gaobeidian Road, Chaoyang District, Beijing 100123, China
| | - Qiang Chen
- College of Metrology and Measurement Engineering, China Jiliang University, 310018 Hangzhou, China
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7
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Liang A, Zhi S, Liu Q, Li C, Jiang Z. A New Covalent Organic Framework of Dicyandiamide-Benzaldehyde Nanocatalytic Amplification SERS/RRS Aptamer Assay for Ultratrace Oxytetracycline with the Nanogold Indicator Reaction of Polyethylene Glycol 600. BIOSENSORS 2021; 11:458. [PMID: 34821674 PMCID: PMC8616007 DOI: 10.3390/bios11110458] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/04/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
In this paper, dicyandiamide (Dd) and p-benzaldehyde (Bd) were heated at 180 °C for 3 h to prepare a new type of stable covalent organic framework (COF) DdBd nanosol with high catalysis. It was characterized by molecular spectroscopy and electron microscopy. The study found that DdBd had a strong catalytic effect on the new indicator reaction of polyethylene glycol 600 (PEG600)-chloroauric acid to form gold nanoparticles (AuNPs). AuNPs have strong resonance Rayleigh scattering (RRS) activity, and in the presence of Victoria Blue B (VBB) molecular probes, they also have a strong surface-enhanced Raman scattering (SERS) effect. Combined with a highly selective oxytetracycline (OTC) aptamer (Apt) reaction, new dual-mode scattering SERS/RRS methods were developed to quantitatively analyze ultratrace OTC. The linear range of RRS is 3.00 × 10-3 -6.00 × 10-2 nmol/L, the detection limit is 1.1 × 10-3 nmol/L, the linear range of SERS is 3.00 × 10-3-7.00 × 10-2 nmol/L, and the detection limit is 9.0 × 10-4 nmol/L. Using the SERS method to analyze OTC in soil samples, the relative standard deviation is 1.35-4.78%, and the recovery rate is 94.3-104.9%.
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Affiliation(s)
- Aihui Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (A.L.); (S.Z.); (Q.L.); (C.L.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Shengfu Zhi
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (A.L.); (S.Z.); (Q.L.); (C.L.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Qiwen Liu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (A.L.); (S.Z.); (Q.L.); (C.L.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Chongning Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (A.L.); (S.Z.); (Q.L.); (C.L.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China; (A.L.); (S.Z.); (Q.L.); (C.L.)
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
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Wang H, Liu Y, Rao G, Wang Y, Du X, Hu A, Hu Y, Gong C, Wang X, Xiong J. Coupling enhancement mechanisms, materials, and strategies for surface-enhanced Raman scattering devices. Analyst 2021; 146:5008-5032. [PMID: 34296232 DOI: 10.1039/d1an00624j] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Surface-enhanced Raman scattering (SERS) has become one of the most sensitive analytical techniques for identifying the chemical components, molecular structures, molecular conformations, and the interactions between molecules. However, great challenges still need to be addressed until it can be widely accepted by the absolute quantification of analytes. Recently, many efforts have been devoted to addressing these issues via various electromagnetic (EM), chemical (CM), and EM-CM hybrid coupling enhancement strategies. In comparison with uncoupled SERS devices, they offer key advantages in terms of sensitivity, reproducibility, uniformity, stability, controllability and reliability. This review provides an in-depth analysis of coupled SERS devices, including coupling enhancement mechanisms, materials and approaches. Finally, we also discuss the remaining bottlenecks and possible strategies for the development of coupling-enhanced SERS devices in the future.
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Affiliation(s)
- Hongbo Wang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, P. R. China.
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Guo L, Cao H, Cao L, Li N, Zhang A, Shang Z, Jiao T, Liu HL, Wang M. Improve optical properties by modifying Ag nanoparticles on a razor clam SERS substrate. OPTICS EXPRESS 2021; 29:5152-5165. [PMID: 33726056 DOI: 10.1364/oe.418551] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 01/24/2021] [Indexed: 06/12/2023]
Abstract
Irregular substrates are inappropriate for enhancing surface enhanced Raman scattering (SERS) due to their poor performances in terms of uniformity, enhancement performance, and polarization characteristics. However, in this work, we purposely employed a natural biological razor clam material with messy and irregular structures to improve the SERS. The rough surface was achieved by magnetron sputtering Ag nanoislands on the prism layer of the razor clams, and the Ag nanoparticles were treated using the method of oil-water interface self-assembly to form relatively uniform structures. Compared to the substrate without Ag nanoparticles, the presented substrate has better reproducibility, polarization-independence, and higher SERS intensity, and the detect limitation of R6G can be decreased from 10-12 M to 10-18 M. The ultrasensitive detection of thiram gives our structures potential for high sensitivity biosensors.
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Silver nanoparticles-decorated Preyssler functionalized cellulose biocomposite as a novel and efficient catalyst for the synthesis of 2-amino-4H-pyrans and spirochromenes. Sci Rep 2020; 10:14540. [PMID: 32884026 PMCID: PMC7471288 DOI: 10.1038/s41598-020-70738-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 07/14/2020] [Indexed: 11/30/2022] Open
Abstract
Silver nanoparticles-decorated Preyssler functionalized cellulose biocomposite (PC/AgNPs) was prepared and fully characterized by FTIR, UV–vis, SEM, and TEM techniques. The preparation of PC/AgNPs was studied systematically to optimize the processing parameters by Taguchi method using the amount of PC, reaction temperature, concentration of silver nitrate and pH of medium. Taguchi’s L9 orthogonal (4 parameters, 4 level) was used for the experimental design. The SEM analysis confirmed the presence of the Preyssler as a white cloud as well as spherical AgNPs on the surface of cellulose. The formation of AgNPs on the surface was observed by changing of the color from yellow to deep brown and confirmed by UV–vis spectroscopy. The best yield of AgNPs forming was obtained in pH 12.5 at 80 ºC in 20 min. TEM analysis confirmed the formation of spherical AgNPs with a size of 50 nm, at the 1% wt. loading of Preyssler. This easily prepared PC/AgNPs was successfully employed as an efficient, green, and reusable catalyst in the synthesis of a wide range of 2-amino-4H-pyran and functionalized spirochromene derivatives via a one-pot, multicomponent reaction. The chief merits realized for this protocol were the utilization of commercially available or easily accessible starting materials, operational simplicity, facile work-up procedure, obtaining of high to excellent yields of the products and being done under green conditions. The catalyst could be easily separated from the reaction mixture and reused several times without observing any appreciable loss in its efficiency.
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Krishchenko IM, Manoilov ÉG, Kravchenko SA, Snopok BA. Resonant Optical Phenomena in Heterogeneous Plasmon Nanostructures of Noble Metals: A Review. THEOR EXP CHEM+ 2020. [DOI: 10.1007/s11237-020-09642-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12
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Phosphorylation-Dependent SERS Readout for Activity Assay of Protein Kinase A in Cell Extracts. NANOMATERIALS 2020; 10:nano10030575. [PMID: 32235706 PMCID: PMC7153394 DOI: 10.3390/nano10030575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 12/13/2022]
Abstract
Protein kinases are key regulators of cell function, the abnormal activity of which may induce several human diseases, including cancers. Therefore, it is of great significance to develop a sensitive and reliable method for assaying protein kinase activities in real biological samples. Here, we report the phosphorylation-dependent surface-enhanced Raman scattering (SERS) readout of spermine-functionalized silver nanoparticles (AgNPs) for protein kinase A (PKA) activity assay in cell extracts. In this assay, the presence of PKA would phosphorylate and alter the net charge states of Raman dye-labeled substrate peptides, and the resulting anionic products could absorb onto the AgNPs with cationic surface charge through electrostatic attraction. Meanwhile, the Raman signals of dyes labeled on peptides were strongly enhanced by the aggregated AgNPs with interparticle hot spots formed in assay buffer. The SERS readout was directly proportional to the PKA activity in a wide range of 0.0001-0.5 U·μL-1 with a detection limit as low as 0.00003 U·μL-1. Moreover, the proposed SERS-based assay for the PKA activity was successfully applied to monitoring the activity and inhibition of PKA in real biological samples, particularly in cell extracts, which would be beneficial for kinase-related disease diagnostics and inhibitor screening.
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Teng Y, Ren Z, Zhang Y, Wang Z, Pan Z, Shao K, She Y. Fabrication of liquid–liquid self-assembled Ag arrays on disposable screen-printed electrodes and their application in the identification and analysis of the adsorption behavior of organic carboxylates through in situ electrochemical surface-enhanced Raman scattering. NEW J CHEM 2020. [DOI: 10.1039/c9nj06000f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A disposable Ag array@screen-printed electrode (SPE) was fabricated for the identification and analysis of the adsorption behavior of organic carboxylates in in situ electrochemical surface-enhanced Raman scattering (EC-SERS).
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Affiliation(s)
- Yuanjie Teng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Zeyu Ren
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Yuchao Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Zhenni Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Zaifa Pan
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Kang Shao
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Yuanbin She
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
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14
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Chang YC, Wu SH. Bi-functional Al-doped ZnO@SnO2 heteronanowires as efficient substrates for improving photocatalytic and SERS performance. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.03.058] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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15
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Tian S, You W, Shen Y, Gu X, Ge M, Ahmadi S, Ahmad S, Kraatz HB. Facile synthesis of silver-rich Au/Ag bimetallic nanoparticles with highly active SERS properties. NEW J CHEM 2019. [DOI: 10.1039/c9nj02879j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A one-pot route to the synthesis of Au/Ag bimetallic nanoparticles with a high SERS activity for detection of proteins at low concentration.
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Affiliation(s)
- Shu Tian
- School of Chemistry and Chemical Engineering
- Nantong University
- Nantong 226019
- P. R. China
- Department of Physical and Environmental Science
| | - Wenjing You
- School of Chemistry and Chemical Engineering
- Nantong University
- Nantong 226019
- P. R. China
| | - Yi Shen
- School of Chemistry and Chemical Engineering
- Nantong University
- Nantong 226019
- P. R. China
| | - Xuefang Gu
- School of Chemistry and Chemical Engineering
- Nantong University
- Nantong 226019
- P. R. China
- Department of Physical and Environmental Science
| | - Ming Ge
- School of Chemistry and Chemical Engineering
- Nantong University
- Nantong 226019
- P. R. China
| | - Soha Ahmadi
- Department of Physical and Environmental Science
- University of Toronto at Scarborough
- Toronto
- Canada
| | - Syed Ahmad
- Department of Physical and Environmental Science
- University of Toronto at Scarborough
- Toronto
- Canada
| | - Heinz-Bernhard Kraatz
- Department of Physical and Environmental Science
- University of Toronto at Scarborough
- Toronto
- Canada
- Department of Chemistry
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Luo X, Tsai D, Gu M, Hong M. Extraordinary optical fields in nanostructures: from sub-diffraction-limited optics to sensing and energy conversion. Chem Soc Rev 2019; 48:2458-2494. [PMID: 30839959 DOI: 10.1039/c8cs00864g] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Along with the rapid development of micro/nanofabrication technology, the past few decades have seen the flourishing emergence of subwavelength-structured materials and interfaces for optical field engineering at the nanoscale. Three remarkable properties associated with these subwavelength-structured materials are the squeezed optical fields beyond the diffraction limit, gradient optical fields in the subwavelength scale, and enhanced optical fields that are orders of magnitude greater than the incident field. These engineered optical fields have inspired fundamental and practical advances in both engineering optics and modern chemistry. The first property is the basis of sub-diffraction-limited imaging, lithography, and dense data storage. The second property has led to the emergence of a couple of thin and planar functional optical devices with a reduced footprint. The third one causes enhanced radiation (e.g., fluorescence), scattering (e.g., Raman scattering), and absorption (e.g., infrared absorption and circular dichroism), offering a unique platform for single-molecule-level biochemical sensing, and high-efficiency chemical reaction and energy conversion. In this review, we summarize recent advances in subwavelength-structured materials that bear extraordinary squeezed, gradient, and enhanced optical fields, with a particular emphasis on their optical and chemical applications. Finally, challenges and outlooks in this promising field are discussed.
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Affiliation(s)
- Xiangang Luo
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, 610209, China.
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17
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Hu R, He T, Zhang Z, Yang Y, Liu M. Safety analysis of edible oil products via Raman spectroscopy. Talanta 2019; 191:324-332. [PMID: 30262067 DOI: 10.1016/j.talanta.2018.08.074] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 08/17/2018] [Accepted: 08/27/2018] [Indexed: 02/03/2023]
Abstract
Raman spectroscopy is a spectroscopic technique based on Raman scattering effects and provide a structural fingerprint by which molecules can be identified. Owing to its non-destructive, high sensitivity and allowing on-line detection, Raman spectroscopy is now increasingly being applied in various fields from fundamental research to engineering in food safety. Edible oils provide high nutritional value in the human diet and their safety and quality have become a major concern and issue. Thus, edible oils have been the subject of a number of applications of Raman spectroscopy. This present review briefly evaluates Raman spectroscopy applications in the quality and safety analysis of oil products in the latest decade. In addition, by integrating the introduction of the detection of harmful substances and bioactive components in oil product, this paper also summarizes a series of emerging analytical technologies in applications of Raman spectroscopy.
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Affiliation(s)
- Rui Hu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - Ting He
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - Zhaowei Zhang
- Oil Crops Research Institute of CAAS, Wuhan 430062, China
| | - Yunhuang Yang
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China.
| | - Maili Liu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China.
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18
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Halas NJ. Spiers Memorial Lecture : Introductory lecture: Hot-electron science and microscopic processes in plasmonics and catalysis. Faraday Discuss 2019; 214:13-33. [DOI: 10.1039/c9fd00001a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In these introductory remarks we discuss the generation of nonequilibrium electrons in metals, their properties, and how they can be utilized in two emerging applications: for extending the capabilities of photodetection (left), and for photocatalysis (right), lowering the barriers of chemical reactions.
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Affiliation(s)
- N J Halas
- Department of Electrical and Computer Engineering, Department of Physics and Astronomy, Department of Chemistry, Laboratory for Nanophotonics, Smalley-Curl Institute, and Department of Materials Science and NanoEngineering, Rice University, 6100 Main Street, Houston, Texas 77005, USA
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19
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Mohammadi A, Nicholls DL, Docoslis A. Improving the Surface-Enhanced Raman Scattering Performance of Silver Nanodendritic Substrates with Sprayed-On Graphene-Based Coatings. SENSORS (BASEL, SWITZERLAND) 2018; 18:E3404. [PMID: 30314312 PMCID: PMC6209902 DOI: 10.3390/s18103404] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/03/2018] [Accepted: 10/06/2018] [Indexed: 01/16/2023]
Abstract
This study examines the improvements in surface-enhanced Raman scattering (SERS) performance achieved when silver nanodendritic structures are coated with various graphene-based materials, namely graphene oxide (GO), reduced graphene oxide (rGO), and graphene nanoplatelets (GNPs). The tests are performed on our unique SERS-active substrates, prepared on the surface of planar microelectrode chips using an electric field-guided Ag nanoparticle assembly process. The graphene-based materials are introduced into the substrate by means of an in-house spray-coating technique. The SERS enhancement effect of each coating is examined as a function of spray nozzle passes (N) and optimal values are identified for each coating type. The enhancements found for GO, rGO, and GNP (6⁻9 graphene layers thick) coatings are 2.3 (N = 25), 2.5 (N = 5), and 1.6 (N = 1), respectively. Additionally, in comparison with their uncoated counterparts, substrates coated with rGO (N = 5) are shown to enhance the intensity of the methamphetamine (5 ppb) spectrum in artificial saliva by approximately 3-fold. Overall, it can be concluded that the introduction of GO or rGO to the SERS substrate using spray-coating, a simple and also scalable method, can produce substantial SERS performance enhancement.
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Affiliation(s)
- Aida Mohammadi
- Department of Chemical Engineering, Queen's University, Kingston, ON K7L3N6, Canada.
| | | | - Aristides Docoslis
- Department of Chemical Engineering, Queen's University, Kingston, ON K7L3N6, Canada.
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20
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Huanga X, Liu Y, Barr J, Song J, He Z, Wang Y, Nie Z, Xiong Y, Chen X. Controllable self-assembled plasmonic vesicle-based three-dimensional SERS platform for picomolar detection of hydrophobic contaminants. NANOSCALE 2018; 10:13202-13211. [PMID: 29971281 PMCID: PMC6069524 DOI: 10.1039/c8nr02778a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Hydrophobic contaminants in food and the environment seriously threaten human health. The ultrasensitive detection of these pollutants can minimize their damage. However, current ultrasensitive sensing strategies are limited to solid substrate-based surface-enhanced Raman spectroscopy (SERS) detection. Herein, we report a controllable and reproducible solution-based SERS detection platform for the direct and ultrasensitive detection of hydrophobic contaminants by using self-assembled three-dimensional plasmonic vesicles. To this end, amphiphilic gold nanoparticles (AuNPs) tethered with linear block copolymer (BCP) of polystyrene-b-poly (ethylene oxide) (PS-b-PEO) were designed, which display dual functions for improving detection sensitivity, including serving as building blocks for the construction of plasmonic vesicles to yield large numbers of hot-spots for SERS enhancement, and providing hydrophobic PS layers to enrich and concentrate target hydrophobic molecules for direct SERS detection with hydrophobic interaction. By modulating the AuNP size and the length of BCP chains, the ultrahigh detection sensitivity, down to the picomolar level, was obtained via using 80 nm AuNPs tethered with BCP of PEO45-b-PS900-SH. In addition, the proposed method exhibits excellent reproducibility, universality, practicability, as well as multiplexing detection capacity in actual contaminant-spiked soil samples. Briefly, the designed self-assembled plasmonic vesicle-based SERS platform provides an ideal generic methodology for the ultrasensitive detection of hydrophobic contaminants that can greatly accelerate on-site testing in food and environmental monitoring.
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Affiliation(s)
- Xiaolin Huanga
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China.
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States. ,
| | - Yijing Liu
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States. ,
| | - Jim Barr
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Jibin Song
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States. ,
| | - Zhimei He
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States. ,
| | - Yongmei Wang
- Department of Chemistry, The University of Memphis, Memphis, Tennessee 38152, United States
| | - Zhihong Nie
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China.
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States. ,
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Jiang Y, Sun DW, Pu H, Wei Q. Surface enhanced Raman spectroscopy (SERS): A novel reliable technique for rapid detection of common harmful chemical residues. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.02.020] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Fateixa S, Nogueira HIS, Trindade T. Surface-Enhanced Raman Scattering Spectral Imaging for the Attomolar Range Detection of Crystal Violet in Contaminated Water. ACS OMEGA 2018; 3:4331-4341. [PMID: 31458659 PMCID: PMC6641606 DOI: 10.1021/acsomega.7b01983] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/27/2018] [Indexed: 05/29/2023]
Abstract
A series of nanocomposites based on polyamide (NL16, PA) filter membranes containing metal nanoparticles (NPs) have been prepared by filtration under reduced pressure of the metal colloids. The ensuing materials were then investigated as substrates for surface-enhanced Raman scattering (SERS) imaging studies envisaging the spectroscopic detection of vestigial organic pollutants dissolved in contaminated water. The organic dye crystal violet (CV) was used here as a model pollutant because it is a hazardous compound present in certain effluent waters. Moreover this compound is well-known for its strong SERS activity, which is clearly advantageous in the context of material development for SERS. Indeed, several preparative strategies were employed to prepare PA-based composites, and the impact on SERS detection was investigated. These include the use of chemical and morphological distinct plasmonic NPs (Ag, Au), a variable metal load and changing the order of addition of the analytical specimens. These studies demonstrate that the parameters employed in the fabrication of the SERS substrates have a strong impact on the Raman signal enhancement. The use of Raman imaging during the fabrication process allows establishing improvements that translate to better performances of the substrates in the analyte detection. The results have been interpreted by considering an integrated set of operational parameters that include the affinity of CV molecules to the substrate, amount and dispersion of NPs in the PA membranes, and the detection method. Noteworthy the use of SERS analysis assisted with Raman imaging allowed achieving a detection limit for CV as low as 100 aM in ultrapure water and 10 fM in real samples.
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23
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Choi Y, Song SW, Hooch Antink W, Kim HM, Piao Y. A silver/graphene oxide nanocomposite film as a flexible SERS substrate for reliable quantitative analysis using high-speed spiral scanning spectrometry. Chem Commun (Camb) 2018; 53:10108-10111. [PMID: 28849808 DOI: 10.1039/c7cc04161f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Excellent uniformity (∼1.5% RSD) in SERS signals was obtained from an Ag/GO decorated adhesive tape on a simple in-house cylindrical scanning system. The calibration curve for the quantitative analysis of CV shows reliable linearity ranging from 75 nM to 50 μM. This novel method is promising to be an adept tool for universal quantitative analysis and be used complementarily with the conventional Raman mapping method for a more time efficient and reliable analysis.
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Affiliation(s)
- Yejung Choi
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16229, Republic of Korea.
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24
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Gold-capped silicon for ultrasensitive SERS-biosensing: Towards human biofluids analysis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018. [DOI: 10.1016/j.msec.2017.11.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Fabrication of Semiconductor ZnO Nanostructures for Versatile SERS Application. NANOMATERIALS 2017; 7:nano7110398. [PMID: 29156600 PMCID: PMC5707615 DOI: 10.3390/nano7110398] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 11/03/2017] [Accepted: 11/06/2017] [Indexed: 11/28/2022]
Abstract
Since the initial discovery of surface-enhanced Raman scattering (SERS) in the 1970s, it has exhibited a huge potential application in many fields due to its outstanding advantages. Since the ultra-sensitive noble metallic nanostructures have increasingly exposed themselves as having some problems during application, semiconductors have been gradually exploited as one of the critical SERS substrate materials due to their distinctive advantages when compared with noble metals. ZnO is one of the most representative metallic oxide semiconductors with an abundant reserve, various and cost-effective fabrication techniques, as well as special physical and chemical properties. Thanks to the varied morphologies, size-dependent exciton, good chemical stability, a tunable band gap, carrier concentration, and stoichiometry, ZnO nanostructures have the potential to be exploited as SERS substrates. Moreover, other distinctive properties possessed by ZnO such as biocompatibility, photocatcalysis and self-cleaning, and gas- and chemo-sensitivity can be synergistically integrated and exerted with SERS activity to realize the multifunctional potential of ZnO substrates. In this review, we discuss the inevitable development trend of exploiting the potential semiconductor ZnO as a SERS substrate. After clarifying the root cause of the great disparity between the enhancement factor (EF) of noble metals and that of ZnO nanostructures, two specific methods are put forward to improve the SERS activity of ZnO, namely: elemental doping and combination of ZnO with noble metals. Then, we introduce a distinctive advantage of ZnO as SERS substrate and illustrate the necessity of reporting a meaningful average EF. We also summarize some fabrication methods for ZnO nanostructures with varied dimensions (0–3 dimensions). Finally, we present an overview of ZnO nanostructures for the versatile SERS application.
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26
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Nabiev SS, Palkina LA. Modern technologies for detection and identification of explosive agents and devices. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2017. [DOI: 10.1134/s1990793117050190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Li H, Men D, Sun Y, Liu D, Li X, Li L, Li C, Cai W, Li Y. Surface enhanced Raman scattering properties of dynamically tunable nanogaps between Au nanoparticles self-assembled on hydrogel microspheres controlled by pH. J Colloid Interface Sci 2017. [DOI: 10.1016/j.jcis.2017.06.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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Jin Y, Wang Y, Chen M, Xiao X, Zhang T, Wang J, Jiang K, Fan S, Li Q. Highly Sensitive, Uniform, and Reproducible Surface-Enhanced Raman Spectroscopy Substrate with Nanometer-Scale Quasi-periodic Nanostructures. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32369-32376. [PMID: 28853546 DOI: 10.1021/acsami.7b08807] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We introduce a simple and cost-effective approach for fabrication of effective surface-enhanced Raman spectroscopy (SERS) substrates. It is shown that the as-fabricated substrates show excellent SERS effects in various probe molecules with high sensitivity, that is, picomolar level detection, and also good reliability. With a SERS enhancement factor beyond 108 and excellent reproducibility (deviation less than 5%) of signal intensity, the fabrication of the SERS substrate is realized on a four-inch wafer and proven to be effective in pesticide residue detection. The SERS substrate is realized first through the fabrication of quasi-periodic nanostructured silicon with dimension features in tens of nanometers using superaligned carbon nanotubes networks as an etching mask, after which a large amount of hot spots with nanometer gaps are formed through deposition of a gold film. With rigorous nanostructure design, the enhanced performance of electromagnetic field distribution for nanostructures is optimized. With the advantage of cost-effective large-area preparation, it is believed that the as-fabricated SERS substrate could be used in a wide variety of actual applications where detection of trace amounts is necessary.
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Affiliation(s)
- Yuanhao Jin
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Yingcheng Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Mo Chen
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Xiaoyang Xiao
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Tianfu Zhang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Jiaping Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Kaili Jiang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Shoushan Fan
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Qunqing Li
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University , Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
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Fu Y, Kuppe C, Valev VK, Fu H, Zhang L, Chen J. Surface-Enhanced Raman Spectroscopy: A Facile and Rapid Method for the Chemical Component Study of Individual Atmospheric Aerosol. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:6260-6267. [PMID: 28498657 DOI: 10.1021/acs.est.6b05910] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A simple and rapid method for detecting chemical components of individual aerosol particles on Klarite substrate with surface-enhanced Raman spectroscopy (SERS) is described. For both single simulated aerosol particles and ambient atmospheric particles, this new analytical method promotes the enhancement factor of the Raman signal. The spectra of ammonium sulfate and naphthalene particles at the microscopic level are enhanced by a factor of 6 and therefore greatly improve the detection of the chemical composition of an individual aerosol particle. When aerosol particles are found over a microscopic domain, a set of Raman spectra with chemical information can be obtained via SERS mapping. The maps illustrate the distribution of organic or inorganic species on the SERS substrate. This constitutes a facile and rapid method to study aerosol particles. This new method allows the analysis of chemical composition in single aerosol particles, demonstrating the power of SERS to probe the ambient atmospheric particles and to study the formation of aerosol particles.
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Affiliation(s)
- Yu Fu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University , Shanghai 200433, People's Republic of China
| | - Christian Kuppe
- Centre for Photonics and Photonic Materials, Department of Physics, University of Bath , Claverton Down, Bath BA2 7AY, United Kingdom
| | - Ventsislav K Valev
- Centre for Photonics and Photonic Materials, Department of Physics, University of Bath , Claverton Down, Bath BA2 7AY, United Kingdom
| | - Hongbo Fu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University , Shanghai 200433, People's Republic of China
| | - Liwu Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University , Shanghai 200433, People's Republic of China
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University , Shanghai 200433, People's Republic of China
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Wang S, Jiang J, Wu H, Jia J, Shao L, Tang H, Ren Y, Chu M, Wang X. Self-assembly of silver nanoparticles as high active surface-enhanced Raman scattering substrate for rapid and trace analysis of uranyl(VI) ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 180:23-28. [PMID: 28262580 DOI: 10.1016/j.saa.2017.02.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 02/19/2017] [Accepted: 02/20/2017] [Indexed: 05/13/2023]
Abstract
A facile surface-enhanced Raman scattering (SERS) substrate based on the self-assembly of silver nanoparticles on the modified silicon wafer was obtained, and for the first time, an advanced SERS analysis method basing on this as-prepared substrate was established for high sensitive and rapid detection of uranyl ions. Due to the weakened bond strength of OUO resulting from two kinds of adsorption of uranyl species ("strong" and "weak" adsorption) on the substrate, the ν1 symmetric stretch vibration frequency of OUO shifted from 871cm-1 (normal Raman) to 720cm-1 and 826cm-1 (SERS) along with significant Raman enhancement. Effects of the hydrolysis of uranyl ions on SERS were also investigated, and the SERS band at ~826cm-1 was first used to approximately define the constitution of uranyl species at trace quantity level. Besides, the SERS intensity was proportional to the variable concentrations of uranyl nitrate ranging from 10-7 to 10-3molL-1 with an excellent linear relation (R2=0.998), and the detection limit was ~10-7molL-1. Furthermore, the related SERS approach involves low-cost substrate fabrication, rapid and trace analysis simultaneously, and shows great potential applications for the field assays of uranyl ions in the nuclear fuel cycle and environmental monitoring.
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Affiliation(s)
- Shaofei Wang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang 621907, China
| | - Jiaolai Jiang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang 621907, China
| | - Haoxi Wu
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang 621907, China
| | - Jianping Jia
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang 621907, China
| | - Lang Shao
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang 621907, China
| | - Hao Tang
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang 621907, China
| | - Yiming Ren
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang 621907, China
| | - Mingfu Chu
- Institute of Materials, China Academy of Engineering Physics, PO Box 9071-11, Mianyang 621907, China
| | - Xiaolin Wang
- China Academy of Engineering Physics, Mianyang 621900, China.
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Spectroscopic Detection of Glyphosate in Water Assisted by Laser-Ablated Silver Nanoparticles. SENSORS 2017; 17:s17050954. [PMID: 28445394 PMCID: PMC5461078 DOI: 10.3390/s17050954] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 04/19/2017] [Accepted: 04/20/2017] [Indexed: 02/06/2023]
Abstract
Glyphosate is one of the most widely used herbicides in the world. Its safety for both human health and aquatic biomes is a subject of wide debate. There are limits to glyphosate’s presence in bodies of water, and it is usually detected through complex analytical procedures. In this work, the presence of glyphosate is detected directly through optical interrogation of aqueous solution. For this purpose, silver nanoparticles were produced by pulsed laser ablation in liquids. Limits of detection of 0.9 mg/L and 3.2 mg/L were obtained with UV-Vis extinction and Surface Enhanced Raman spectroscopies, respectively. The sensing mechanism was evaluated in the presence of potential interferents as well as with commercial glyphosate-based herbicides.
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Guselnikova O, Postnikov P, Elashnikov R, Trusova M, Kalachyova Y, Libansky M, Barek J, Kolska Z, Švorčík V, Lyutakov O. Surface modification of Au and Ag plasmonic thin films via diazonium chemistry: Evaluation of structure and properties. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.12.040] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Farrell ME, Strobbia P, Pellegrino PM, Cullum B. Surface regeneration and signal increase in surface-enhanced Raman scattering substrates. APPLIED OPTICS 2017; 56:B198-B213. [PMID: 28157898 DOI: 10.1364/ao.56.00b198] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Regenerated surface-enhanced Raman scattering (SERS) substrates allow users the ability to not only reuse sensing surfaces, but also tailor them to the sensing application needs (wavelength of the available laser, plasmon band matching). In this review, we discuss the development of SERS substrates for response to emerging threats and some of our collaborative efforts to improve on the use of commercially available substrate surfaces. Thus, we are able to extend the use of these substrates to broader Army needs (like emerging threat response).
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Yao G, Zhang H, Zhang S, Liao F, Huang Z, Bie B, Lin Y. Highly sensitive pressure switch sensors and enhanced near ultraviolet photodetectors based on 3D hybrid film of graphene sheets decorated with silver nanoparticles. RSC Adv 2017. [DOI: 10.1039/c7ra02342a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Highly sensitive pressure switch sensors and enhanced near ultraviolet photodetectors based on 3D Ag/GNs hybrid film were proposed and fabricated, and this work presented a simple route to obtain high performance devices.
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Affiliation(s)
- Guang Yao
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - Hulin Zhang
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - Shangjie Zhang
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - Feiyi Liao
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - Zhenlong Huang
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - Bixiong Bie
- The Peac Institute of Multiscale Sciences
- Chengdu
- P. R. China
- School of Science
- Wuhan University of Technology
| | - Yuan Lin
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
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Witlicki EH, Bähring S, Johnsen C, Solano MV, Nielsen KA, Silverstein DW, Marlatt CW, Jensen L, Jeppesen JO, Flood AH. Enhanced detection of explosives by turn-on resonance Raman upon host–guest complexation in solution and the solid state. Chem Commun (Camb) 2017; 53:10918-10921. [DOI: 10.1039/c7cc06517e] [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]
Abstract
Being colour coordinated allows turn on detection of nitroaromatics by combining molecular recognition with resonant enhancement of the Raman spectra.
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Affiliation(s)
- Edward H. Witlicki
- Department of Chemistry
- Indiana University
- 800 East Kirkwood Avenue
- Bloomington
- Indiana 47405
| | - Steffen Bähring
- Department of Physics
- Chemistry and Pharmacy
- University of Southern Denmark
- Odense M
- Denmark
| | - Carsten Johnsen
- Department of Physics
- Chemistry and Pharmacy
- University of Southern Denmark
- Odense M
- Denmark
| | - Marta V. Solano
- Department of Physics
- Chemistry and Pharmacy
- University of Southern Denmark
- Odense M
- Denmark
| | - Kent A. Nielsen
- Department of Physics
- Chemistry and Pharmacy
- University of Southern Denmark
- Odense M
- Denmark
| | | | - Craig W. Marlatt
- Department of Chemistry
- Indiana University
- 800 East Kirkwood Avenue
- Bloomington
- Indiana 47405
| | - Lasse Jensen
- Department of Chemistry
- The Pennsylvania State University
- University Park
- USA
| | - Jan O. Jeppesen
- Department of Physics
- Chemistry and Pharmacy
- University of Southern Denmark
- Odense M
- Denmark
| | - Amar H. Flood
- Department of Chemistry
- Indiana University
- 800 East Kirkwood Avenue
- Bloomington
- Indiana 47405
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37
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Yu X, Cai R, Song Y, Gao Q, Pan N, Wu M, Wang X. Graphene/TiO2 hybrid layer for simultaneous detection and degradation by a one-step transfer and integration method. RSC Adv 2017. [DOI: 10.1039/c7ra00252a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
During the past decades, researchers have made great efforts towards an ideal surface enhanced Raman spectroscopy (SERS) substrate.
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Affiliation(s)
- Xinxin Yu
- School of Physics and Material Science
- Anhui University
- Hefei 230601
- PR China
| | - Ranran Cai
- School of Physics and Material Science
- Anhui University
- Hefei 230601
- PR China
| | - Yuqing Song
- Department of Physics
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Qiang Gao
- School of Physics and Material Science
- Anhui University
- Hefei 230601
- PR China
| | - Nan Pan
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Mingzai Wu
- School of Physics and Material Science
- Anhui University
- Hefei 230601
- PR China
| | - Xiaoping Wang
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei 230026
- P. R. China
- Department of Physics
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Bandarenka HV, Girel KV, Bondarenko VP, Khodasevich IA, Panarin AY, Terekhov SN. Formation Regularities of Plasmonic Silver Nanostructures on Porous Silicon for Effective Surface-Enhanced Raman Scattering. NANOSCALE RESEARCH LETTERS 2016; 11:262. [PMID: 27209406 PMCID: PMC4875914 DOI: 10.1186/s11671-016-1473-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 05/09/2016] [Indexed: 05/30/2023]
Abstract
Plasmonic nanostructures demonstrating an activity in the surface-enhanced Raman scattering (SERS) spectroscopy have been fabricated by an immersion deposition of silver nanoparticles from silver salt solution on mesoporous silicon (meso-PS). The SERS signal intensity has been found to follow the periodical repacking of the silver nanoparticles, which grow according to the Volmer-Weber mechanism. The ratio of silver salt concentration and immersion time substantially manages the SERS intensity. It has been established that optimal conditions of nanostructured silver layers formation for a maximal Raman enhancement can be chosen taking into account a special parameter called effective time: a product of the silver salt concentration on the immersion deposition time. The detection limit for porphyrin molecules CuTMPyP4 adsorbed on the silvered PS has been evaluated as 10(-11) M.
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Affiliation(s)
- Hanna V Bandarenka
- Laboratory of Materials and Structures of Nanoelectronics, Belarusian State University of Informatics and Radioelectronics, 6 Brovka st., Minsk, 220013, Belarus.
| | - Kseniya V Girel
- Laboratory of Materials and Structures of Nanoelectronics, Belarusian State University of Informatics and Radioelectronics, 6 Brovka st., Minsk, 220013, Belarus
| | - Vitaly P Bondarenko
- Laboratory of Materials and Structures of Nanoelectronics, Belarusian State University of Informatics and Radioelectronics, 6 Brovka st., Minsk, 220013, Belarus
| | - Inna A Khodasevich
- B.I. Stepanov Institute of Physics of National Academy of Sciences of Belarus, 68 Nezalezhnasti av., Minsk, 220072, Belarus
| | - Andrei Yu Panarin
- B.I. Stepanov Institute of Physics of National Academy of Sciences of Belarus, 68 Nezalezhnasti av., Minsk, 220072, Belarus
| | - Sergei N Terekhov
- B.I. Stepanov Institute of Physics of National Academy of Sciences of Belarus, 68 Nezalezhnasti av., Minsk, 220072, Belarus
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Li Z, Jiang S, Huo Y, Liu M, Yang C, Zhang C, Liu X, Sheng Y, Li C, Man B. Controlled-layer and large-area MoS 2 films encapsulated Au nanoparticle hybrids for SERS. OPTICS EXPRESS 2016; 24:26097-26108. [PMID: 27857347 DOI: 10.1364/oe.24.026097] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, a facile and effective method for controlled-layer and large-area MoS2 films encapsulated Au nanoparticle hybrids is developed. With accurate Ar plasma treatment time control, the large-area MoS2 layers can be obtained from monolayer to trilayer. The fabricated MoS2@Au NPs with higher surface area exhibit excellent Raman enhanced effect for aromatic organic molecules (rhodamine 6G and crystal violet) and achieve the best when the monolayer MoS2@AuNPs was obtained. The limit of detection is found to be as low as 1 × 10-10 M. The MoS2@AuNPs was characterized by SEM, EDS, AFM, Raman spectroscopy, UV-Vis, XRD and HRTEM.
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40
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Li R, Liu B, Gao J. The application of nanoparticles in diagnosis and theranostics of gastric cancer. Cancer Lett 2016; 386:123-130. [PMID: 27845158 DOI: 10.1016/j.canlet.2016.10.032] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 10/12/2016] [Accepted: 10/22/2016] [Indexed: 02/07/2023]
Abstract
Gastric cancer is the fourth most common cancer and the second leading cause of cancer related death worldwide. For the diagnosis of gastric cancer, apart from regular systemic imaging, the locoregional imaging is also of great importance. Moreover, there are still other ways for the detecting of gastric cancer, including the early detection of gastric cancer by endoscopy, the detection of gastric-cancer related biomarkers and the detection of circulating tumor cells (CTCs) of gastric cancer. However, conventional diagnostic methods are usually lack of specificity and sensitivity. Nanoparticles provide many benefits in the diagnosis of gastric cancer. Besides, nanoparticles are capable of integrating the functions of diagnosis and treatment together (theranostics). In this paper, we reviewed the applications of nanoparticles in diagnosis and theranostics of gastric cancer in the above mentioned aspects.
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Affiliation(s)
- Rutian Li
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, PR China; Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, PR China
| | - Baorui Liu
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, PR China.
| | - Jiahui Gao
- The Comprehensive Cancer Center of Drum-Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, PR China; Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, PR China
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41
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Chemically Roughened Solid Silver: A Simple, Robust and Broadband SERS Substrate. SENSORS 2016; 16:s16101742. [PMID: 27775581 PMCID: PMC5087527 DOI: 10.3390/s16101742] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 10/09/2016] [Accepted: 10/14/2016] [Indexed: 11/16/2022]
Abstract
Surface-enhanced Raman spectroscopy (SERS) substrates manufactured using complex nano-patterning techniques have become the norm. However, their cost of manufacture makes them unaffordable to incorporate into most biosensors. The technique shown in this paper is low-cost, reliable and highly sensitive. Chemical etching of solid Ag metal was used to produce simple, yet robust SERS substrates with broadband characteristics. Etching with ammonium hydroxide (NH₄OH) and nitric acid (HNO₃) helped obtain roughened Ag SERS substrates. Scanning electron microscopy (SEM) and interferometry were used to visualize and quantify surface roughness. Flattened Ag wires had inherent, but non-uniform roughness having peaks and valleys in the microscale. NH₄OH treatment removed dirt and smoothened the surface, while HNO₃ treatment produced a flake-like morphology with visibly more surface roughness features on Ag metal. SERS efficacy was tested using 4-methylbenzenethiol (MBT). The best SERS enhancement for 1 mM MBT was observed for Ag metal etched for 30 s in NH₄OH followed by 10 s in HNO₃. Further, MBT could be quantified with detection limits of 1 pM and 100 µM, respectively, using 514 nm and 1064 nm Raman spectrometers. Thus, a rapid and less energy intensive method for producing solid Ag SERS substrate and its efficacy in analyte sensing was demonstrated.
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42
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Peng Y, Zheng X, Tian H, Cui X, Chen H, Zheng W. Ultrathin Carbon Film Protected Silver Nanostructures for Surface-Enhanced Raman Scattering. APPLIED SPECTROSCOPY 2016; 70:1751-1758. [PMID: 27340216 DOI: 10.1177/0003702816644608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/29/2015] [Indexed: 06/06/2023]
Abstract
In this article, ultrathin carbon film protected silver substrate (Ag/C) was prepared via a plasma-enhanced chemical vapor deposition (PECVD) method. The morphological evolution of silver nanostructures underneath, as well as the surface-enhanced Raman scattering (SERS) activity of Ag/C hybrid can be tuned by controlling the deposition time. The stability and reproducibility of the as-prepared hybrid were also studied.
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Affiliation(s)
- Yinshan Peng
- Department of Materials Science, Department of Control Science and Engineering, Key Laboratory of Automobile Materials of MOE and State Key Laboratory of Superhard Materials, Jilin University, Changchun, China
| | - Xianliang Zheng
- Department of Materials Science, Department of Control Science and Engineering, Key Laboratory of Automobile Materials of MOE and State Key Laboratory of Superhard Materials, Jilin University, Changchun, China
| | - Hongwei Tian
- Department of Materials Science, Department of Control Science and Engineering, Key Laboratory of Automobile Materials of MOE and State Key Laboratory of Superhard Materials, Jilin University, Changchun, China
| | - Xiaoqiang Cui
- Department of Materials Science, Department of Control Science and Engineering, Key Laboratory of Automobile Materials of MOE and State Key Laboratory of Superhard Materials, Jilin University, Changchun, China
| | - Hong Chen
- Department of Materials Science, Department of Control Science and Engineering, Key Laboratory of Automobile Materials of MOE and State Key Laboratory of Superhard Materials, Jilin University, Changchun, China
| | - Weitao Zheng
- Department of Materials Science, Department of Control Science and Engineering, Key Laboratory of Automobile Materials of MOE and State Key Laboratory of Superhard Materials, Jilin University, Changchun, China
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43
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Cai Q, Mateti S, Watanabe K, Taniguchi T, Huang S, Chen Y, Li LH. Boron Nitride Nanosheet-Veiled Gold Nanoparticles for Surface-Enhanced Raman Scattering. ACS APPLIED MATERIALS & INTERFACES 2016; 8:15630-15636. [PMID: 27254250 DOI: 10.1021/acsami.6b04320] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Atomically thin boron nitride (BN) nanosheets have many properties desirable for surface-enhanced Raman spectroscopy (SERS). BN nanosheets have a strong surface adsorption capability toward airborne hydrocarbon and aromatic molecules. For maximized adsorption area and hence SERS sensitivity, atomically thin BN nanosheet-covered gold nanoparticles have been prepared for the first time. When placed on top of metal nanoparticles, atomically thin BN nanosheets closely follow their contours so that the plasmonic hot spots are retained. Electrically insulating BN nanosheets also act as a barrier layer to eliminate metal-induced disturbances in SERS. Moreover, the SERS substrates veiled by BN nanosheets show an outstanding reusability in the long term. As a result, the sensitivity, reproducibility, and reusability of SERS substrates can be greatly improved. We also demonstrate that large BN nanosheets produced by chemical vapor deposition can be used to scale up the proposed SERS substrate for practical applications.
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Affiliation(s)
- Qiran Cai
- Institute for Frontier Materials, Deakin University , Geelong Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
| | - Srikanth Mateti
- Institute for Frontier Materials, Deakin University , Geelong Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
| | - Kenji Watanabe
- National Institute for Materials Science , Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Takashi Taniguchi
- National Institute for Materials Science , Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Shaoming Huang
- Nanomaterials and Chemistry Key Laboratory, Wenzhou University , Wenzhou 325027, China
| | - Ying Chen
- Institute for Frontier Materials, Deakin University , Geelong Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
| | - Lu Hua Li
- Institute for Frontier Materials, Deakin University , Geelong Waurn Ponds Campus, Waurn Ponds, Victoria 3216, Australia
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44
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A rapid method to authenticate vegetable oils through surface-enhanced Raman scattering. Sci Rep 2016; 6:23405. [PMID: 26987802 PMCID: PMC4796845 DOI: 10.1038/srep23405] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 02/29/2016] [Indexed: 01/18/2023] Open
Abstract
Vegetable oils are essential in our daily diet. Among various vegetable oils, the major difference lies in the composition of fatty acids, including unsaturated fatty acids (USFA) and saturated fatty acids (SFA). USFA include oleic acid (OA), linoleic acid (LA), and α-linolenic acid (ALA), while SFA are mainly palmitic acid (PA). In this study, the most typical and abundant USFA present with PA in vegetable oils were quantified. More importantly, certain proportional relationships between the integrated intensities of peaks centered at 1656 cm−1 (S1656) in the surface-enhanced Raman scattering spectra of different USFA were confirmed. Therefore, the LA or ALA content could be converted into an equivalent virtual OA content enabling the characterization of the USFA content in vegetable oils using the equivalent total OA content. In combination with the S1656 of pure OA and using peanut, sesame, and soybean oils as examples, the ranges of S1656 corresponding to the National Standards of China were established to allow the rapid authentication of vegetable oils. Gas chromatograph-mass spectrometer analyses verified the accuracy of the method, with relative errors of less than 5%. Moreover, this method can be extended to other detection fields, such as diseases.
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45
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Salvati E, Stellacci F, Krol S. Nanosensors for early cancer detection and for therapeutic drug monitoring. Nanomedicine (Lond) 2015; 10:3495-512. [DOI: 10.2217/nnm.15.180] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The use of nanotechnology for drug delivery in cancer therapy has raised high expectations. Additionally, the use of nanomaterials in sensors to extract and detect tumor specific biomarkers, circulating tumor cells, or extracellular vesicles shed by the tumor holds the promise to detect cancer much earlier and hence improve long-term survival of the patients. Moreover, the monitoring of the anticancer drug concentration, which has a narrow therapeutic window, will allow for a personalized dosing of the drug and will lead to improved therapeutic outcome and life quality of the patient. This review will provide an overview on the use of nanosensors for the early diagnosis of cancer and for the therapeutic drug monitoring, giving some examples. We envision nanosensors to make significant improvements in the cancer management as easy-to-use point-of-care devices for a broad population of users.
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Affiliation(s)
- Elisa Salvati
- IFOM, The FIRC Institute for Molecular Oncology Foundation, IFOM-IEO Campus, Via Adamello 16, 20139 Milan, Italy
| | - Francesco Stellacci
- Institute of Materials, École Polytechnique Fédérale de Lausanne, Station 12, CH–1015 Lausanne, Switzerland
- Fondazione IRCCS Institute of Neurology Carlo Besta, Via Amadeo 42, 20133 Milan, Italy
| | - Silke Krol
- Fondazione IRCCS Institute of Neurology Carlo Besta, Via Amadeo 42, 20133 Milan, Italy
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46
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Advances in explosives analysis--part II: photon and neutron methods. Anal Bioanal Chem 2015; 408:49-65. [PMID: 26446898 DOI: 10.1007/s00216-015-9043-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 09/10/2015] [Indexed: 01/09/2023]
Abstract
The number and capability of explosives detection and analysis methods have increased dramatically since publication of the Analytical and Bioanalytical Chemistry special issue devoted to Explosives Analysis [Moore DS, Goodpaster JV, Anal Bioanal Chem 395:245-246, 2009]. Here we review and critically evaluate the latest (the past five years) important advances in explosives detection, with details of the improvements over previous methods, and suggest possible avenues towards further advances in, e.g., stand-off distance, detection limit, selectivity, and penetration through camouflage or packaging. The review consists of two parts. Part I discussed methods based on animals, chemicals (including colorimetry, molecularly imprinted polymers, electrochemistry, and immunochemistry), ions (both ion-mobility spectrometry and mass spectrometry), and mechanical devices. This part, Part II, will review methods based on photons, from very energetic photons including X-rays and gamma rays down to the terahertz range, and neutrons.
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47
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Hao J, Han MJ, Han S, Meng X, Su TL, Wang QK. SERS detection of arsenic in water: A review. J Environ Sci (China) 2015; 36:152-62. [PMID: 26456617 DOI: 10.1016/j.jes.2015.05.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 05/19/2015] [Accepted: 05/21/2015] [Indexed: 05/19/2023]
Abstract
Arsenic (As) is one of the most toxic contaminants found in the environment. Development of novel detection methods for As species in water with the potential for field use has been an urgent need in recent years. In past decades, surface-enhanced Raman scattering (SERS) has gained a reputation as one of the most sensitive spectroscopic methods for chemical and biomolecular sensing. The SERS technique has emerged as an extremely promising solution for in-situ detection of arsenic species in the field, particularly when coupled with portable/handheld Raman spectrometers. In this article, the recent advances in SERS analysis of arsenic species in water media are reviewed, and the potential of this technique for fast screening and field testing of arsenic-contaminated environmental water samples is discussed. The problems that remain in the field are also discussed and an outlook for the future is featured at the end of the article.
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Affiliation(s)
- Jumin Hao
- Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA; Agiltron Inc., 15 Presidential Way, Woburn, MA 01801, USA.
| | - Mei-Juan Han
- Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Songman Han
- Department of Chemical Engineering, Renai College of Tianjin University, Tianjin 301636, China
| | - Xiaoguang Meng
- Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Tsan-Liang Su
- Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Qingwu K Wang
- Agiltron Inc., 15 Presidential Way, Woburn, MA 01801, USA
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48
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Kitahama Y, Ikemachi T, Suzuki T, Miura T, Ozaki Y. Plasmonic properties of triangle-shaped silver trimers selectively fabricated by near-field photo-reduction using an apertured cantilever for an atomic force microscope. Chem Commun (Camb) 2015; 50:9693-6. [PMID: 25017956 DOI: 10.1039/c4cc04230a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
On an AgNO3 crystal, an equilateral or a right-angle triangle-shaped Ag trimer was selectively fabricated through near-field photo-reduction and observed in situ by using an apertured cantilever coupled with an atomic force microscope. By using the different triangle-shaped Ag trimers, irradiation wavelength and polarization dependence of surface-enhanced Raman scattering were investigated.
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Affiliation(s)
- Yasutaka Kitahama
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan.
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49
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Panagiotopoulos NT, Kalfagiannis N, Vasilopoulos KC, Pliatsikas N, Kassavetis S, Vourlias G, Karakassides MA, Patsalas P. Self-assembled plasmonic templates produced by microwave annealing: applications to surface-enhanced Raman scattering. NANOTECHNOLOGY 2015; 26:205603. [PMID: 25918264 DOI: 10.1088/0957-4484/26/20/205603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Perhaps the simplest method for creating metal nanoparticles on a substrate is by driving their self-assembly with the thermal annealing of a thin metal film. By properly tuning the annealing parameters one hopes to discover a recipe that allows the pre-determined design of the NP arrangement. However, thermal treatment is known for detrimental effects and is not really the manufacturer's route of choice when it comes to large-scale applications. An alternative method is the use of microwave annealing, a method that has never been applied for metal processing, due to the high reflectance of microwave radiation at the surface of a metal. However, in this work we challenge the widely used nanostructuring methods by proving the microwave's annealing ability to produce plasmonic templates, out of extremely thin metal films, by simply using a domestic microwave oven apparatus. We show that this process is generic and independent of the deposition method used for the metal and we further quantify the suitability of these plasmonic templates for use in surface-enhanced Raman scattering applications.
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Affiliation(s)
- N T Panagiotopoulos
- University of Ioannina, Department of Materials Science and Engineering, GR-45110 Ioannina, Greece
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50
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Zito G, Rusciano G, Pesce G, Dochshanov A, Sasso A. Surface-enhanced Raman imaging of cell membrane by a highly homogeneous and isotropic silver nanostructure. NANOSCALE 2015; 7:8593-606. [PMID: 25898990 DOI: 10.1039/c5nr01341k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Label-free chemical imaging of live cell membranes can shed light on the molecular basis of cell membrane functionalities and their alterations under membrane-related diseases. In principle, this can be done by surface-enhanced Raman scattering (SERS) in confocal microscopy, but requires engineering plasmonic architectures with a spatially invariant SERS enhancement factor G(x, y) = G. To this end, we exploit a self-assembled isotropic nanostructure with characteristics of homogeneity typical of the so-called near-hyperuniform disorder. The resulting highly dense, homogeneous and isotropic random pattern consists of clusters of silver nanoparticles with limited size dispersion. This nanostructure brings together several advantages: very large hot spot density (∼10(4) μm(-2)), superior spatial reproducibility (SD < 1% over 2500 μm(2)) and single-molecule sensitivity (Gav ∼ 10(9)), all on a centimeter scale transparent active area. We are able to reconstruct the label-free SERS-based chemical map of live cell membranes with confocal resolution. In particular, SERS imaging is here demonstrated on red blood cells in vitro in order to use the Raman-resonant heme of the cell as a contrast medium to prove spectroscopic detection of membrane molecules. Numerical simulations also clarify the SERS characteristics of the substrate in terms of electromagnetic enhancement and distance sensitivity range consistently with the experiments. The large SERS-active area is intended for multi-cellular imaging on the same substrate, which is important for spectroscopic comparative analysis of complex organisms like cells. This opens new routes for in situ quantitative surface analysis and dynamic probing of living cells exposed to membrane-targeting drugs.
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Affiliation(s)
- Gianluigi Zito
- Department of Physics, University of Naples Federico II, via Cintia, 80126-I Naples, Italy.
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