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Zhou JY, Zhu J, Weng GJ, Li JJ, Zhao JW. Fabrication of SERS composite substrates using Ag nanotriangles-modified SiO 2 photonic crystal and the application of malachite green detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 318:124472. [PMID: 38761473 DOI: 10.1016/j.saa.2024.124472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/26/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
A novel surface-enhanced Raman scattering (SERS) composite substrates on the basis of Ag triangular nanoplates(Ag TNPs)-modified SiO2 photonic crystals (PC) is fabricated and applied to the SERS detection of malachite green (MG). It consists of uniformly arranged Ag TNP@SiO2, a new PC. Notably, Ag TNP are uniformly aligned on the SiO2 surface, forming a three-dimensional high-density hotspot nanostructure. With the tip "hot spots" of Ag TNPs, Bragg diffraction of SiO2 and coupling enhancement between Ag TNPs and SiO2, the SERS enhancement of this composite substrates was multiplied. The effect on the SERS of Ag TNP@SiO2 composite substrate was systematically optimized by tuning Ag TNP size, size of SiO2 microspheres, coverage of Ag TNPs on SiO2 and fabrication method of Ag TNPs and PC. Moreover, the uniform of SERS composite substrates and Raman signal was dramatically increased by the method of vertical deposition. Eventually, the SERS composite substrates were employed in MG detection. Its broad detection range of 1 pM-1 μM and low limit of detection (LOD) of 0.49 pM indicated acceptable sensitivity and repeatability. This work illustrates the promising applicability in food safety analysis based on SERS composite substrates composed by Ag TNP@SiO2 with numerous SERS enhancements and excellent stability.
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Affiliation(s)
- Jin-Yu Zhou
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
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Duy Vu T, Thang Nguyen D, Yen Thi Nguyen H, Hoang Do H, Duc Pham T, Thanh Le S, Ngoc Vu L. A facile paper-based chromatography coupled Au nanodendrite on nickel foam for application in separation and SERS measurement. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 313:124137. [PMID: 38479225 DOI: 10.1016/j.saa.2024.124137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/28/2024] [Accepted: 03/06/2024] [Indexed: 04/02/2024]
Abstract
A simple paper-based chromatography coupling with nickel foam decorated Au nanodendrite (PP-AuND/NiF) was fabricated for simultaneous separation and surface-enhanced Raman scattering (SERS) detection of Rhodamine-6G (R6G) from a mixture of analytes. The three-dimensional porous nickel foam (NiF) was employed as a sampling diffusion platform, and AuND with a high surface active area beneficial for SERS efficiency was electro-deposited directly onto the NiF frame. The structure of AuND/NiF was characterized by X-ray diffraction and scanning electron microscopy. The AuND/NiF could detect R6G at 0.1 nM, and the enhancement factor was 1.84 x 106. The AuND/NiF was durable, with a slight signal decrease after 6 m of drop-testing. Also, upon three days of exposure to ambient air, the signal droped only 3.35 %. Subsequently, the PP-AuND/NiF was constructed by directly situating AuND/NiF on a paper strip, serving as a sample in and out to AuND/NiF. A mixture of two SERS active compounds, namely 2-Naphthalenethiol (2-NpSH) and Rhodamine 6G (R6G), was prepared in ethanol: water (1:1) solution to evaluate PP-AuND/NiF separation capability. Raman measurements along different distances of AuND/NiF were performed, and the signal of 2-NpSH was dismissed after 3.0 mm, while R6G's signals were observed throughout AuND/NiF. In general, the PP-AuND/NiF demonstrated effective separation and SERS measurement of analytes in a mixture, which could be applicable for more complex samples in the future, especially in clinical analysis.
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Affiliation(s)
- Tung Duy Vu
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, Vietnam.
| | - Duc Thang Nguyen
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, Vietnam
| | - Hai Yen Thi Nguyen
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, Vietnam
| | - Huy Hoang Do
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, Vietnam
| | - Tien Duc Pham
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, Vietnam
| | - Son Thanh Le
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, Vietnam
| | - Linh Ngoc Vu
- Faculty of Engineering Physics and Nanotechnology, University of Engineering and Technology, Vietnam National University, Hanoi, Vietnam
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Sherpa L, Nimmala A, Rao SVSN, Khan SA, Pathak AP, Tripathi A, Tiwari A. Refining shape and size of silver nanoparticles using ion irradiation for enhanced and homogeneous SERS activity. DISCOVER NANO 2024; 19:51. [PMID: 38502359 PMCID: PMC11329486 DOI: 10.1186/s11671-024-03994-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/09/2024] [Indexed: 03/21/2024]
Abstract
We present green synthesis of silver nanoparticles in water using unirradiated and Ag15 + ion irradiated phytoextracts of Bergenia Ciliata leaf, Eupatorium adenophorum leaf, Rhododendron arboreum leaf and flower. The use of different plant extracts and their subsequent ion irradiation allow for successful refinement of nanoparticle size and morphology. Due to changes in reducing and capping agents the nanoparticle surface functionalization also varies which not only controls the morphology but also allows for surface oxidation and aggregation processes. In this work, we have synthesized silver nanoparticles which exhibit sizes in the range from 13 to 24 nm and having shapes like spherical, quasispherical, trigonal, hexagonal, cylindrical, dendritic assemblies, and porous nanoparticles. Owing to changes in the size and shape of the nanoparticles, their direct bandgap (2.05 eV - 2.48 eV) and local surface plasmon resonance (420 nm - 490 nm) could also be tuned. These nanoparticles are examined as SERS substrates, where their enhancement factors, limit of detection for methylene blue, and SERS substrate homogeneity have been tested. It has been observed the nanoparticles synthesized using unirradiated plant extracts present an enhancement factor of 106 with a limit of detection 10- 8 M. Whereas nanoparticles with refined morphology and shapes upon irradiation present high enhancement factors of >107 and detection limit down to 10- 9 M. In addition, uniformity in Raman spectra over the SERS substrates has been obtained for selected Ag NPs substrates synthesized using irradiated extracts with minimum relative standard deviation in enhancement factor < 12%.
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Affiliation(s)
- Laden Sherpa
- Department of Physics, Sikkim University, Tadong, Gangtok, Sikkim, 737102, India
| | - Arun Nimmala
- Centre for Advanced Studies in Electronics Science and Technology (CASEST), School of Physics, University of Hyderabad, Hyderabad, Telangana, 500046, India
| | - S V S Nageswara Rao
- Centre for Advanced Studies in Electronics Science and Technology (CASEST), School of Physics, University of Hyderabad, Hyderabad, Telangana, 500046, India
| | - S A Khan
- Inter University Accelerator Centre, (IUAC), New Delhi, New Delhi, 110067, India
| | - Anand P Pathak
- School of Physics University of Hyderabad, Hyderabad, Telangana, 5000046, India
| | - Ajay Tripathi
- Department of Physics, Sikkim University, Tadong, Gangtok, Sikkim, 737102, India
| | - Archana Tiwari
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India.
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Zhang W, Zhu X, Chen Z, Belotelov VI, Song Y. Silver Nanopillar Arrayed Thin Films with Highly Surface-Enhanced Raman Scattering for Ultrasensitive Detection. ACS OMEGA 2022; 7:25726-25731. [PMID: 35910149 PMCID: PMC9330273 DOI: 10.1021/acsomega.2c03022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Surface-enhanced Raman scattering (SERS) technique based on surface plasmon resonance has been considerably investigated in recent years due to its superior sensitivity in the detection of organic or biological molecules at trace levels. However, most research usually focuses on artificial architectures as SERS substrates that always have a complex and expensive micro-nanofabrication process. The high cost of masks for SERS substrates becomes a key obstacle for the widespread commercialization of SERS technology. In this paper, a biomimetic SERS substrate composed of silver-coated nanopillar arrays on the top of a cicada wing was advanced to overcome these challenges as both substrates and masks. Benefiting from the high near-field plasmon resonance coupling at the limited space among neighboring nanopillars, a dramatically increased SERS signal can be achieved using rhodamine 6G (R6G) as a model molecule. Encouragingly, the analytical enhancement factor of the order of more than 108 has been conveniently realized with a reliable detection concentration of R6G of about 100 pM or less. This work provides a promising route for designing cost-effective and highly sensitive SERS substrates and the related mask fabrication using our previously proposed template transfer nanoimprint.
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Affiliation(s)
- Weiwei Zhang
- Center for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
- School of Mathematics and Physics, Hebei GEO University, 136 East Huai'an Road, Yuhua District, Shijiazhuang 050031, China
- Shunde Graduate School, University of Science and Technology Beijing. Daliang Zhihui Road 2, Shunde Distinct, Foshan 528399, China
| | - Xiaomin Zhu
- Center for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Zhanghua Chen
- Center for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Vladimir I Belotelov
- Vernadsky Crimean Federal University, Vernadskogo av. 4, Simferopol 295007, Russia
- NTI Center for Quantum Communications, National University of Science and Technology MISiS, Leninsky prospekt 4, Moscow 119049, Russia
- Photonic and Quantum Technologies School, Lomonosov Moscow State University, Leninskie Gori, 119991 Moscow, Russia
| | - Yujun Song
- Center for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
- Zhengzhou Tianzhao Biomedical Technology Company Ltd., 7 Dongqing Street, Zhengzhou High Tech Development Zone, Zhengzhou 451450, China
- Key Laboratory of Pulsed Power Translational Medicine of Zhejiang Province, Hangzhou Ruidi Biotechnology Company Ltd., Room 803, Bldg. 4, 4959 Yuhangtang Road, Cangqian Street, Hangzhou, Zhejiang 310023, China
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Sherpa L, Arun N, Nageswara Rao S, Khan S, Pathak A, Tripathi A, Tiwari A. 200 MeV Ag ion irradiation mediated green synthesis and self assembly of silver nanoparticles into dendrites for enhanced SERS applications. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.109966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Spectroscopic analysis and nuclear magnetic resonance for silver nanoparticles synthesized with trans-resveratrol and cis-resveratrol. Colloid Polym Sci 2022. [DOI: 10.1007/s00396-022-04957-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Miranda B, Rea I, Dardano P, De Stefano L, Forestiere C. Recent Advances in the Fabrication and Functionalization of Flexible Optical Biosensors: Toward Smart Life-Sciences Applications. BIOSENSORS-BASEL 2021; 11:bios11040107. [PMID: 33916580 PMCID: PMC8066870 DOI: 10.3390/bios11040107] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/20/2021] [Accepted: 03/31/2021] [Indexed: 12/16/2022]
Abstract
Over the last 30 years, optical biosensors based on nanostructured materials have obtained increasing interest since they allow the screening of a wide variety of biomolecules with high specificity, low limits of detection, and great sensitivity. Among them, flexible optical platforms have the advantage of adapting to non-planar surfaces, suitable for in vivo and real-time monitoring of diseases and assessment of food safety. In this review, we summarize the newest and most advanced platforms coupling optically active materials (noble metal nanoparticles) and flexible substrates giving rise to hybrid nanomaterials and/or nanocomposites, whose performances are comparable to the ones obtained with hard substrates (e.g., glass and semiconductors). We focus on localized surface plasmon resonance (LSPR)-based and surface-enhanced Raman spectroscopy (SERS)-based biosensors. We show that large-scale, cost-effective plasmonic platforms can be realized with the currently available techniques and we emphasize the open issues associated with this topic.
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Affiliation(s)
- Bruno Miranda
- Institute of Applied Sciences and Intelligent Systems, Unit of Naples, National Research Council, Via P. Castellino 111, 80131 Napoli, Italy; (B.M.); (I.R.); (P.D.)
- Department of Electrical Engineering and Information Technology, University of Naples Federico II, Via Claudio 21, 80125 Napoli, Italy;
| | - Ilaria Rea
- Institute of Applied Sciences and Intelligent Systems, Unit of Naples, National Research Council, Via P. Castellino 111, 80131 Napoli, Italy; (B.M.); (I.R.); (P.D.)
| | - Principia Dardano
- Institute of Applied Sciences and Intelligent Systems, Unit of Naples, National Research Council, Via P. Castellino 111, 80131 Napoli, Italy; (B.M.); (I.R.); (P.D.)
| | - Luca De Stefano
- Institute of Applied Sciences and Intelligent Systems, Unit of Naples, National Research Council, Via P. Castellino 111, 80131 Napoli, Italy; (B.M.); (I.R.); (P.D.)
- Correspondence:
| | - Carlo Forestiere
- Department of Electrical Engineering and Information Technology, University of Naples Federico II, Via Claudio 21, 80125 Napoli, Italy;
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Nasir S, Majeed MI, Nawaz H, Rashid N, Ali S, Farooq S, Kashif M, Rafiq S, Bano S, Ashraf MN, Abubakar M, Ahmad S, Rehman A, Amin I. Surface enhanced Raman spectroscopy of RNA samples extracted from blood of hepatitis C patients for quantification of viral loads. Photodiagnosis Photodyn Ther 2020; 33:102152. [PMID: 33348077 DOI: 10.1016/j.pdpdt.2020.102152] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/23/2020] [Accepted: 12/14/2020] [Indexed: 01/31/2023]
Abstract
BACKGROUND Raman spectroscopy is a promising technique to analyze the body fluids for the purpose of non-invasive disease diagnosis. OBJECTIVES To develop a surface-enhanced Raman spectroscopy (SERS) based method for qualitative and quantitative analysis of HCV from blood samples. METHODS SERS was employed to characterize the Hepatitis C viral RNA extracted from different blood samples of hepatitis C virus (HCV) infected patients with predetermined viral loads in comparison with total RNA of healthy individuals. The SERS measurements were performed on 27 extracted RNA samples including low viral loads, medium viral loads, high viral loads and healthy/negative viral load samples. For this purpose, silver nanoparticles (Ag NPs) were used as SERS substrates. Furthermore, multivariate data analysis technique, Principal Component Analysis (PCA) and Partial Least Square Regression (PLSR) were also performed on SERS spectral data. RESULTS The SERS spectral features due to biochemical changes in the extracted RNA samples associated with the increasing viral loads were established which could be employed for HCV diagnostic purpose. PCA was found helpful for the differentiation between Raman spectral data of RNA extracted from hepatitis infected and healthy blood samples. PLSR model is established for the determination of viral loads in HCV positive RNA samples with 99 % accuracy. CONCLUSION SERS can be employed for qualitative and quantitative analysis of HCV from blood samples.
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Affiliation(s)
- Saira Nasir
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | | | - Haq Nawaz
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan.
| | - Nosheen Rashid
- Department of Chemistry, University of Central Punjab, Lahore, Faisalabad Campus, Pakistan
| | - Saqib Ali
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Sidra Farooq
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Muhammad Kashif
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Sidra Rafiq
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Saira Bano
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | | | - Muhammad Abubakar
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Shamsheer Ahmad
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Asma Rehman
- National Institute for Biotechnology and Genetic Engineering (NIBGE), P. O. Box 577, Jhang Road Faisalabad, Pakistan
| | - Imran Amin
- PCR Laboratory, PINUM Hospital, Faisalabad, Pakistan
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Iglesias D, Guerra J, Lucío MI, González-Cano RC, López Navarrete JT, Ruiz Delgado MC, Vázquez E, Herrero MA. Microwave-assisted functionalization of carbon nanohorns with oligothiophene units with SERS activity. Chem Commun (Camb) 2020; 56:8948-8951. [PMID: 32638759 DOI: 10.1039/d0cc03496g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Carbon nanohorns have been functionalized with oligothiophene units via the 1,3-dipolar cycloaddition reaction under microwave irradiation and solvent-free conditions. A dramatic Raman enhancement was found for one of the synthesized derivatives. Experimental and in silico studies helped to understand the enhancement, attributed to the modification of electromagnetic fields upon functionalization at the tip of the nanostructures.
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Affiliation(s)
- Daniel Iglesias
- Université de Strasbourg, CNRS, ISIS, 8 Allée Gaspard Monge, 67000 Strasbourg, France
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10
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Zhang W, Tian Q, Chen Z, Zhao C, Chai H, Wu Q, Li W, Chen X, Deng Y, Song Y. Arrayed nanopore silver thin films for surface-enhanced Raman scattering. RSC Adv 2020; 10:23908-23915. [PMID: 35517352 PMCID: PMC9055119 DOI: 10.1039/d0ra03803b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/08/2020] [Indexed: 12/20/2022] Open
Abstract
Active substrates are crucial for surface-enhanced Raman scattering (SERS). Among these substrates, large uniform area arrayed nanoporous silver thin films have been developed as active substrates. Arrayed nanoporous silver thin films with unique anisotropic morphologies and nanoporous structures can be fabricated onto the nanoporous anodic aluminum oxide (AAO) of controlled pore size and interspacing by precisely tuning the sputtering parameters. These thin films preserve locally enhanced electromagnetic fields by exciting the surface plasmon resonance, which is beneficial for SERS. In this study, nanoporous silver thin films were transferred into polymethylmethacrylate (PMMA) and polydimethylsiloxane (PDMS) substrates using our recently invented template-assisted sol-gel phase inverse-imprinting process to form two different nanopore thin films. The as-formed Ag nanoporous thin films on PMMA and PDMS exhibited intensively enhanced SERS signals using Rhodamine 6G (R6G) as the model molecule. The two nanopore thin films exhibited opposite pore size-dependent SERS tendencies, which were elucidated by the different enhancement tendencies of the electric field around pores of different diameters. In particular, the Ag nanoporous thin film on PMMA exhibited an R6G detection limit of as low as 10-6 mol L-1, and the SERS enhancement factor (EF) was more than 106. The low detection limit and large EF demonstrated the high sensitivity of the as-prepared SERS substrates for label-free detection of biomolecules. Compared with conventional smooth films, this nanopore structure can facilitate future application in biomolecular sensors, which allows the detection of single molecules via an electronic readout without requirement for amplification or labels.
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Affiliation(s)
- Weiwei Zhang
- Centre for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology, Beijing Xueyuan Road 30, Haidian District Beijing 100083 China
- Shunde Graduate School of University of Science and Technology Beijing Daliang Zhihui Road 2, Shunde Distinct Foshan 528399 China
| | - Qingkun Tian
- Centre for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology, Beijing Xueyuan Road 30, Haidian District Beijing 100083 China
| | - Zhanghua Chen
- Centre for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology, Beijing Xueyuan Road 30, Haidian District Beijing 100083 China
| | - Cuicui Zhao
- Centre for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology, Beijing Xueyuan Road 30, Haidian District Beijing 100083 China
| | - Haishuai Chai
- Centre for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology, Beijing Xueyuan Road 30, Haidian District Beijing 100083 China
| | - Qiong Wu
- Centre for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology, Beijing Xueyuan Road 30, Haidian District Beijing 100083 China
| | - Wengang Li
- Xiangan Affiliated Hospital, Xiamen University Siming North Road 422, Siming District Xiamen Fujian 361005 China
| | - Xinhua Chen
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang University Hangzhou 310003 China
| | - Yida Deng
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University Weijin Road 92, Nankai District Tianjin 300350 China
| | - Yujun Song
- Centre for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology, Beijing Xueyuan Road 30, Haidian District Beijing 100083 China
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SERS Activity of Silver Nanosphere, Triangular Nanoplates, Hexagonal Nanoplates and Quasi-Spherical Nanoparticles: Effect of Shape and Morphology. COATINGS 2020. [DOI: 10.3390/coatings10030288] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this work, we prepared different morphologies of silver nanoparticles: nanosphere, triangular nanoplates, hexagonal nanoplates, and quasi-spherical shapes, through one-step synthesis. Hydrogen peroxide was used as the oxidizing agent during the reduction of silver nitrate by sodium borohydride, in the presence of tri-sodium citrate and poly-vinyl-pyrrolidone. The obtained silver nanoparticles were fully characterized by UV-Vis spectroscopy, Dynamic Light Scattering and Scanning Electron Microscopy, and successfully used as Surface Enhanced Raman Scattering (SERS) substrates. The effect of shape and morphology on the Raman scattering enhancement was evaluated by using methylene blue as target molecules. The Raman measurements demonstrated that the prepared substrates are reliable and sensitive with analytical enhancement factors, estimated to be around 105 with a concentration of methylene blue 1 μM. When triangular and hexagonal nanoplates were tested with different concentrations of analyte, they demonstrated a good linearity in Raman intensity with a good detection of methylene blue 0.1 μM.
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12
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Zhang L, Zhu T, Yang C, Jang HY, Jang HJ, Liu L, Park S. Synthesis of Monolayer Gold Nanorings Sandwich Film and Its Higher Surface-Enhanced Raman Scattering Intensity. NANOMATERIALS 2020; 10:nano10030519. [PMID: 32183019 PMCID: PMC7153256 DOI: 10.3390/nano10030519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/03/2020] [Accepted: 03/08/2020] [Indexed: 01/05/2023]
Abstract
Most previous studies relating to surface-enhanced Raman spectroscopy (SERS) signal enhancement were focused on the interaction between the light and the substrate in the x-y axis. 3D SERS substrates reported in the most of previous papers could contribute partial SERS enhancement via z axis, but the increases of the surface area were the main target for those reports. However, the z axis is also useful in achieving improved SERS intensity. In this work, hot spots along the z axis were specifically created in a sandwich nanofilm. Sandwich nanofilms were prepared with self-assembly and Langmuir-Blodgett techniques, and comprised of monolayer Au nanorings sandwiched between bottom Ag mirror and top Ag cover films. Monolayer Au nanorings were formed by self-assembly at the interface of water and hexane, followed by Langmuir-Blodgett transfer to a substrate with sputtered Ag mirror film. Their hollow property allows the light transmitted through a cover film. The use of a Ag cover layer of tens nanometers in thickness was critical, which allowed light access to the middle Au nanorings and the bottom Ag mirror, resulting in more plasmonic resonance and coupling along perpendicular interfaces (z-axis). The as-designed sandwich nanofilms could achieve an overall ~8 times SERS signals amplification compared to only the Au nanorings layer, which was principally attributed to enhanced electromagnetic fields along the created z-axis. Theoretical simulations based on finite-difference time-domain (FDTD) method showed consistent results with the experimental ones. This study points out a new direction to enhance the SERS intensity by involving more hot spots in z-axis in a designer nanostructure for high-performance molecular recognition and detection.
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Affiliation(s)
- Liqiu Zhang
- Department of Chemistry & Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Korea; (H.Y.J.); (H.-J.J.)
- College of Biological, Chemical Sciences and Engineering & Nanotechnology Research Institute, Jiaxing University, Jiaxing 314001, China;
- Correspondence: (L.Z.); (S.P.)
| | - Tiying Zhu
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (T.Z.); (C.Y.)
| | - Cheng Yang
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (T.Z.); (C.Y.)
| | - Ho Young Jang
- Department of Chemistry & Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Korea; (H.Y.J.); (H.-J.J.)
| | - Hee-Jeong Jang
- Department of Chemistry & Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Korea; (H.Y.J.); (H.-J.J.)
| | - Lichun Liu
- College of Biological, Chemical Sciences and Engineering & Nanotechnology Research Institute, Jiaxing University, Jiaxing 314001, China;
| | - Sungho Park
- Department of Chemistry & Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Korea; (H.Y.J.); (H.-J.J.)
- Correspondence: (L.Z.); (S.P.)
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Salem S, Sakir M, Sahin K, Korkmaz I, Yavuz E, Sarp G, Onses MS, Yilmaz E. Low bandgap microsphere-like magnetic nanocomposite: An enhanced photocatalyst for degradation of organic contaminants and fabrication of SERS-active surfaces. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124436] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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14
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Photocatalytic green fabrication of Au nanoparticles on ZnO nanorods modified membrane as flexible and photocatalytic active reusable SERS substrates. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124088] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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15
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Rubira RJG, Camacho SA, Martin CS, Mejía-Salazar JR, Reyes Gómez F, da Silva RR, de Oliveira Junior ON, Alessio P, Constantino CJL. Designing Silver Nanoparticles for Detecting Levodopa (3,4-Dihydroxyphenylalanine, L-Dopa) Using Surface-Enhanced Raman Scattering (SERS). SENSORS (BASEL, SWITZERLAND) 2019; 20:E15. [PMID: 31861443 PMCID: PMC6982777 DOI: 10.3390/s20010015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 12/06/2019] [Accepted: 12/10/2019] [Indexed: 01/05/2023]
Abstract
Detection of the drug Levodopa (3,4-dihydroxyphenylalanine, L-Dopa) is essential for the medical treatment of several neural disorders, including Parkinson's disease. In this paper, we employed surface-enhanced Raman scattering (SERS) with three shapes of silver nanoparticles (nanostars, AgNS; nanospheres, AgNP; and nanoplates, AgNPL) to detect L-Dopa in the nanoparticle dispersions. The sensitivity of the L-Dopa SERS signal depended on both nanoparticle shape and L-Dopa concentration. The adsorption mechanisms of L-Dopa on the nanoparticles inferred from a detailed analysis of the Raman spectra allowed us to determine the chemical groups involved. For instance, at concentrations below/equivalent to the limit found in human plasma (between 10-7-10-8 mol/L), L-Dopa adsorbs on AgNP through its ring, while at 10-5-10-6 mol/L adsorption is driven by the amino group. At even higher concentrations, above 10-4 mol/L, L-Dopa polymerization predominates. Therefore, our results show that adsorption depends on both the type of Ag nanoparticles (shape and chemical groups surrounding the Ag surface) and the L-Dopa concentration. The overall strategy based on SERS is a step forward to the design of nanostructures to detect analytes of clinical interest with high specificity and at varied concentration ranges.
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Affiliation(s)
- Rafael Jesus Gonçalves Rubira
- School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente 19060-900 SP, Brazil; (C.S.M.); (P.A.); (C.J.L.C.)
| | - Sabrina Alessio Camacho
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis 19806-900 SP, Brazil;
| | - Cibely Silva Martin
- School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente 19060-900 SP, Brazil; (C.S.M.); (P.A.); (C.J.L.C.)
| | | | - Faustino Reyes Gómez
- São Carlos Institute of Physics, University of São Paulo (USP), P.O. Box 369, São Carlos 13560-970 SP, Brazil; (F.R.G.); (R.R.d.S.)
| | - Robson Rosa da Silva
- São Carlos Institute of Physics, University of São Paulo (USP), P.O. Box 369, São Carlos 13560-970 SP, Brazil; (F.R.G.); (R.R.d.S.)
| | | | - Priscila Alessio
- School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente 19060-900 SP, Brazil; (C.S.M.); (P.A.); (C.J.L.C.)
| | - Carlos José Leopoldo Constantino
- School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente 19060-900 SP, Brazil; (C.S.M.); (P.A.); (C.J.L.C.)
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16
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Weatherston JD, Yuan S, Mashuga CV, Wu HJ. Multi-functional SERS substrate: collection, separation, and identification of airborne chemical powders on a single device. SENSORS AND ACTUATORS. B, CHEMICAL 2019; 297:126765. [PMID: 32831480 PMCID: PMC7442113 DOI: 10.1016/j.snb.2019.126765] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Due to its extreme sensitivity and fingerprint specificity, surface enhanced Raman spectroscopy (SERS) is a powerful tool for substance identification. Developments in portable low-cost SERS substrates and handheld Raman spectrometers enable SERS analysis at sample origin, with great potential benefit to field-work applications in numerous disciplines. This study reports a procedure which incorporates sample collection, isolation, and SERS identification of airborne solids on a single inexpensive substrate. This procedure, vacuum filtration-paper chromatography-SERS (VF-PC-SERS), utilizes a porous filter paper decorated with plasmonic nanoparticles which we call nanopaper. The porous fiber structure facilitates both the vacuum filter powder capture and the isolation of components by paper chromatography, while the nanoplasmonic coating enhances Raman signal. One potentially high-impact application of VF-PC-SERS is field analysis of hazardous or illicit materials. This study demonstrates a proof-of-concept for VF-PC-SERS using powdered rhodamine 6G (R6G) dispersed in air, resulting in 100% detection accuracy (true positive rate) at R6G levels as low as 0.6 mg/m3. Analysis of R6G contaminated with topsoil or lactose resulted in specific identification of R6G in powder mixtures containing as little as 0.1 wt. % R6G. This study demonstrates the feasibility of VF-PC-SERS as a safer procedure to identify hazardous substances at the point of sample origin.
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Affiliation(s)
- Joshua D. Weatherston
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA
| | - Shuai Yuan
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA
| | - Chad V. Mashuga
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA
- Correspondence: ,
| | - Hung-Jen Wu
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA
- Correspondence: ,
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17
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Zhang W, Li C, Gao K, Lu F, Liu M, Li X, Zhang L, Mao D, Gao F, Huang L, Mei T, Zhao J. Surface-enhanced Raman spectroscopy with Au-nanoparticle substrate fabricated by using femtosecond pulse. NANOTECHNOLOGY 2018; 29:205301. [PMID: 29485408 DOI: 10.1088/1361-6528/aab294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Au-nanoparticle (Au-NP) substrates for surface-enhanced Raman spectroscopy (SERS) were fabricated by grid-like scanning a Au-film using a femtosecond pulse. The Au-NPs were directly deposited on the Au-film surface due to the scanning process. The experimentally obtained Au-NPs presented local surface plasmon resonance effect in the visible spectral range, as verified by finite difference time domain simulations and measured reflection spectrum. The SERS experiment using the Au-NP substrates exhibited high activity and excellent substrate reproducibility and stability, and a clearly present Raman spectra of target analytes, e.g. Rhodamine-6G, Rhodamine-B and Malachite green, with concentrations down to 10-9 M. This work presents an effective approach to producing Au-NP SERS substrates with advantages in activity, reproducibility and stability, which could be used in a wide variety of practical applications for trace amount detection.
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Affiliation(s)
- Wending Zhang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
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18
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Mejía-Salazar JR, Camacho SA, Constantino CJL, Oliveira ON. New trends in plasmonic (bio)sensing. AN ACAD BRAS CIENC 2018; 90:779-801. [PMID: 29742207 DOI: 10.1590/0001-3765201820170571] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 10/04/2017] [Indexed: 11/22/2022] Open
Abstract
The strong enhancement and localization of electromagnetic field in plasmonic systems have found applications in many areas, which include sensing and biosensing. In this paper, an overview will be provided of the use of plasmonic phenomena in sensors and biosensors with emphasis on two main topics. The first is related to possible ways to enhance the performance of sensors and biosensors based on surface plasmon resonance (SPR), where examples are given of functionalized magnetic nanoparticles, magnetoplasmonic effects and use of metamaterials for SPR sensing. The other topic is focused on surface-enhanced Raman scattering (SERS) for sensing, for which uniform, flexible, and reproducible SERS substrates have been produced. With such recent developments, there is the prospect of improving sensitivity and lowering the limit of detection in order to overcome the limitations inherent in ultrasensitive detection of chemical and biological analytes, especially at single molecule levels.
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19
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Joshi P, Santhanam V. Inkjet-Based Fabrication Process with Control over the Morphology of SERS-Active Silver Nanostructures. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Pushkaraj Joshi
- Department of Chemical Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Venugopal Santhanam
- Department of Chemical Engineering, Indian Institute of Science, Bangalore 560012, India
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20
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Botta R, Chindaudom P, Eiamchai P, Horprathum M, Limwichean S, Chananonnawathorn C, Patthanasettakul V, Kaewseekhao B, Faksri K, Nuntawong N. Tuberculosis determination using SERS and chemometric methods. Tuberculosis (Edinb) 2018. [PMID: 29523323 DOI: 10.1016/j.tube.2017.12.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Nanostructures have been multiplying the advantages of Raman spectroscopy and further amplify the advantages of Raman spectroscopy is a continuous effort focused on the appropriate design of nanostructures. Herein, we designed different shapes of plasmonic nanostructures such as Vertical, Zig Zag, Slant nanorods and Spherical nanoparticles employing the DC magnetron sputtering system as SERS-active substrates for ultrasensitive detection of target molecules. The fabricated plasmonic nanostructures sensitivity and uniformity were exploited by reference dye analyte. These nanostructures were utilized in the label free detection of infectious disease, Tuberculosis (TB). For the first time, TB detection from serum samples using SERS has been demonstrated. Various multivariate statistical methods such as principal component analysis, support vector machine, decision tree and random forest were developed and tested their ability to discriminate the healthy and active TB samples. The results demonstrate the performance of the SERS spectra, chemometric methods and potential of the method in clinical diagnosis.
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Affiliation(s)
- Raju Botta
- National Electronics and Computer Technology Center (NECTEC), Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand.
| | - Pongpan Chindaudom
- National Electronics and Computer Technology Center (NECTEC), Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Pitak Eiamchai
- National Electronics and Computer Technology Center (NECTEC), Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Mati Horprathum
- National Electronics and Computer Technology Center (NECTEC), Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Saksorn Limwichean
- National Electronics and Computer Technology Center (NECTEC), Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Chanunthorn Chananonnawathorn
- National Electronics and Computer Technology Center (NECTEC), Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Viyapol Patthanasettakul
- National Electronics and Computer Technology Center (NECTEC), Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Benjawan Kaewseekhao
- Department of Microbiology and Research and Diagnostic Center for Emerging Infectious Diseases (RCEID), Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Kiatichai Faksri
- Department of Microbiology and Research and Diagnostic Center for Emerging Infectious Diseases (RCEID), Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Noppadon Nuntawong
- National Electronics and Computer Technology Center (NECTEC), Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
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21
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Martín-Yerga D, Pérez-Junquera A, González-García MB, Hernández-Santos D, Fanjul-Bolado P. Towards single-molecule in situ electrochemical SERS detection with disposable substrates. Chem Commun (Camb) 2018; 54:5748-5751. [DOI: 10.1039/c8cc02069h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Nanostructure and surface charge can be tuned during the electrochemical activation of SERS substrates achieving highly active surfaces with feasible detection of a few molecules.
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22
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Peveler WJ, Jaber SB, Parkin IP. Nanoparticles in explosives detection - the state-of-the-art and future directions. Forensic Sci Med Pathol 2017; 13:490-494. [PMID: 28801875 PMCID: PMC5688190 DOI: 10.1007/s12024-017-9903-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2017] [Indexed: 12/29/2022]
Affiliation(s)
- William J Peveler
- Department of Chemistry, University College London, 20 Gordon St, WC1H 0AJ, London, UK
| | - Sultan Ben Jaber
- Department of Chemistry, University College London, 20 Gordon St, WC1H 0AJ, London, UK
| | - Ivan P Parkin
- Department of Chemistry, University College London, 20 Gordon St, WC1H 0AJ, London, UK.
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23
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Wu YX, Liang P, Dong QM, Bai Y, Yu Z, Huang J, Zhong Y, Dai YC, Ni D, Shu HB, Pittman CU. Design of a silver nanoparticle for sensitive surface enhanced Raman spectroscopy detection of carmine dye. Food Chem 2017; 237:974-980. [DOI: 10.1016/j.foodchem.2017.06.057] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 05/10/2017] [Accepted: 06/07/2017] [Indexed: 10/19/2022]
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24
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Zhang CH, Zhu J, Li JJ, Zhao JW. Small and Sharp Triangular Silver Nanoplates Synthesized Utilizing Tiny Triangular Nuclei and Their Excellent SERS Activity for Selective Detection of Thiram Residue in Soil. ACS APPLIED MATERIALS & INTERFACES 2017; 9:17387-17398. [PMID: 28475842 DOI: 10.1021/acsami.7b04365] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The great harm of thiram residue in soil to environment and human health is usually ignored. Due to the complexity of soil compositions, the detection of thiram residue in soil faces considerable difficulties. In this work, a highly sensitive and selective surface-enhanced Raman scattering (SERS) substrate based on the triangular silver nanoplates (TSNPs) with small size and sharp corners is developed and used for the detection of thiram residue in soil for the first time. These TSNPs are synthesized by replacing the conventional seeds in the seed-mediated chemical reduction route with the tiny and uniform triangular silver nuclei (TSN) which can provide more growing space for generating sharp corners during the growth of TSNPs. It is interesting that the TSNPs with the smaller size have the better SERS performance. The possible mechanism behind this phenomenon is explained by the electromagnetic enhancement theory. On the basis of the Raman activity of the smallest TSNPs, a SERS-active substrate is prepared for detecting the thiram residue in soil. The thiram solution detection shows that the limit of detection (LOD) of these smallest TSNPs is lower than other nanoparticles, such as nanospheres, nanocubes, etc. For sensing the thiram residue in soil, the addition of poly(sodium 4-styrenesulfonate) realizes the specific adsorption of thiram by TSNPs. This method exhibits a good linear response from 0.12 to 4.8 μg/g with a low LOD of 90 ng/g, which is better than conventional methods. This work shows the great potential of the small TSNPs as a novel SERS substrate and its broader applications in pesticides detection.
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Affiliation(s)
- Chun-Hong Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, China
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25
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Zheng M, Zhu X, Chen Y, Xiang Q, Duan H. Three-dimensional donut-like gold nanorings with multiple hot spots for surface-enhanced raman spectroscopy. NANOTECHNOLOGY 2017; 28:045303. [PMID: 27981948 DOI: 10.1088/1361-6528/28/4/045303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Seeking for the best possible substrates for surface-enhanced Raman spectroscopy (SERS) is of great interest for single-molecule-level detection applications. Lithographic plasmonic nanostructures are supposed to enable uniform enhancement and thus have attracted extensive interest in the past decade. In this work, we propose and demonstrate a lithographic three-dimensional (3D) donut-like gold nanoring array as a SERS substrate with an enhancement factor (EF) up to 3.84 × 107. This 3D nanoring array could be directly fabricated using electron-beam-lithography-defined templates without any additional lift-off process and thus promises ultraclean metallic surfaces. Meanwhile, the 3D configuration allows multiple hot spots for improving SERS performance compared to planar counterparts with comparable plasmon resonance position. Systematic experiments and simulations were conducted to gain understanding of the origin of the improved SERS performance. The results imply that the 3D donut-like gold nanorings with multiple hot spots can serve as a promising configuration for SERS applications.
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Affiliation(s)
- Mengjie Zheng
- School of Electronics and Physics, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, People's Republic of China
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26
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Reguera J, Langer J, Jiménez de Aberasturi D, Liz-Marzán LM. Anisotropic metal nanoparticles for surface enhanced Raman scattering. Chem Soc Rev 2017; 46:3866-3885. [DOI: 10.1039/c7cs00158d] [Citation(s) in RCA: 344] [Impact Index Per Article: 49.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Anisotropy in plasmonic metal nanoparticles plays a major role in the enhancement of the Raman scattering of adsorbed molecules.
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Affiliation(s)
- Javier Reguera
- CIC biomaGUNE
- 20014 Donostia-San Sebastián
- Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine
- Ciber-BBN
| | - Judith Langer
- CIC biomaGUNE
- 20014 Donostia-San Sebastián
- Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine
- Ciber-BBN
| | - Dorleta Jiménez de Aberasturi
- CIC biomaGUNE
- 20014 Donostia-San Sebastián
- Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine
- Ciber-BBN
| | - Luis M. Liz-Marzán
- CIC biomaGUNE
- 20014 Donostia-San Sebastián
- Spain
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine
- Ciber-BBN
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27
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Das R, Soni RK. Synthesis and surface-enhanced Raman scattering of indium nanotriangles and nanowires. RSC Adv 2017. [DOI: 10.1039/c7ra03317f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Indium nano-wires and -triangles are synthesizedviaa modified polyol reduction method and self-assembled on silane treated glass coverslips as SERS substrates, giving large Raman signal enhancement from adsorbed tryptophan molecules under non-resonant excitation at 632.8 nm.
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Affiliation(s)
- Rupali Das
- Department of Physics
- Indian Institute of Technology Delhi
- New Delhi
- India
| | - R. K. Soni
- Department of Physics
- Indian Institute of Technology Delhi
- New Delhi
- India
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28
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Zhang Z, Guo H, Carlisle T, Mukherjee A, Kinchla A, White JC, Xing B, He L. Evaluation of Postharvest Washing on Removal of Silver Nanoparticles (AgNPs) from Spinach Leaves. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:6916-6922. [PMID: 27548506 DOI: 10.1021/acs.jafc.6b02705] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
There is increasing use of silver nanoparticles (AgNPs) as pesticides for fruits and vegetables due to the particles' unique antimicrobial and insecticidal properties. However, residual AgNPs in harvested produce may transfer through the food chain and pose a potential risk to public health. The objective of this study is to determine whether postharvest washing can effectively remove AgNPs that had accumulated on fresh produce. Ten microliters of commercially available 40 nm citrate coated AgNPs (0.4 mg/L) was dropped to a (1 × 1 cm(2)) spot on spinach leaves, followed by washing with deionized water (DI water), Tsunami 100 (80 mg/L), or Clorox bleach (200 mg/L). Then, the AgNP removal efficiency of the three treatments was evaluated by surface-enhanced Raman spectroscopy (SERS), scanning electron microscopy (SEM)-energy dispersive spectrometry (EDS), and inductively coupled plasma mass spectrometry (ICP-MS). ICP-MS results showed that deionized water removed statistically insignificant amounts of total Ag (5%), whereas Tsunami 100 and Clorox bleach yielded 21 and 10% decreases in total Ag, respectively (P < 0.05). The increased removal efficiency resulted from AgNP dissolution and Ag(+) release upon contact with the oxidizing agents in Tsunami 100 (peroxyacetic acid, hydrogen peroxide) and Clorox bleach (sodium hypochlorite). According to the SERS results, the deionized water and Tsunami 100 treatments removed nonsignificant amounts of AgNPs. Clorox bleach decreased Ag NPs by >90% (P < 0.05); however, SEM-EDS images revealed the formation of large silver chloride (AgCl) crystals (162 ± 51 nm) on the leaf, which explained the low total Ag removal from ICP-MS. This study indicates current factory washing methods for fresh produce may not be effective in reducing AgNPs (by water and Tsunami 100) and total Ag (by all three means). This highlights the necessity to develop an efficient washing method for NP removal from food surfaces in the future.
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Affiliation(s)
- Zhiyun Zhang
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Huiyuan Guo
- Stockbridge School of Agriculture, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Thomas Carlisle
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Arnab Mukherjee
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station , New Haven, Connecticut 06511, United States
| | - Amanda Kinchla
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Jason C White
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station , New Haven, Connecticut 06511, United States
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Lili He
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
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29
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Kelly JT, McClellan AK, Joe LV, Wright AM, Lloyd LT, Tschumper GS, Hammer NI. Competition between Hydrophilic and Argyrophilic Interactions in Surface Enhanced Raman Spectroscopy. Chemphyschem 2016; 17:2782-6. [PMID: 27350289 DOI: 10.1002/cphc.201600678] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Indexed: 11/09/2022]
Abstract
The competition for binding and charge-transfer (CT) from the nitrogen containing heterocycle pyrimidine to either silver or to water in surface enhanced Raman spectroscopy (SERS) is discussed. The correlation between the shifting observed for vibrational normal modes and CT is analyzed both experimentally using Raman spectroscopy and theoretically using electronic structure theory. Discrete features in the Raman spectrum correspond to the binding of either water or silver to each of pyrimidine's nitrogen atoms with comparable frequency shifts. Natural bond orbital (NBO) calculations in each chemical environment reveal that the magnitude of charge transfer from pyrimidine to adjacent silver atoms is only about twice that for water alone. These results suggest that the choice of solvent plays a role in determining the vibrational frequencies of nitrogen containing molecules in SERS experiments.
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Affiliation(s)
- John T Kelly
- Department of Chemistry and Biochemistry, University of Mississippi, P.O. Box 1848, University, Mississippi, 38677, United States
| | - Annie K McClellan
- Department of Chemistry and Biochemistry, University of Mississippi, P.O. Box 1848, University, Mississippi, 38677, United States
| | - Lynn V Joe
- Department of Chemistry and Biochemistry, University of Mississippi, P.O. Box 1848, University, Mississippi, 38677, United States
| | - Ashley M Wright
- Department of Chemistry and Biochemistry, University of Mississippi, P.O. Box 1848, University, Mississippi, 38677, United States
| | - Lawson T Lloyd
- Department of Chemistry and Biochemistry, University of Mississippi, P.O. Box 1848, University, Mississippi, 38677, United States
| | - Gregory S Tschumper
- Department of Chemistry and Biochemistry, University of Mississippi, P.O. Box 1848, University, Mississippi, 38677, United States.
| | - Nathan I Hammer
- Department of Chemistry and Biochemistry, University of Mississippi, P.O. Box 1848, University, Mississippi, 38677, United States.
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30
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Deng H, McShan D, Zhang Y, Sinha SS, Arslan Z, Ray PC, Yu H. Mechanistic Study of the Synergistic Antibacterial Activity of Combined Silver Nanoparticles and Common Antibiotics. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:8840-8. [PMID: 27390928 PMCID: PMC5300770 DOI: 10.1021/acs.est.6b00998] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A combination of silver nanoparticles (AgNPs) and an antibiotic can synergistically inhibit bacterial growth, especially against the drug-resistant bacteria Salmonella typhimurium. However, the mechanism for the synergistic activity is not known. This study chooses four classes of antibiotics, β-lactam (ampicillin and penicillin), quinolone (enoxacin), aminoglycoside (kanamycin and neomycin), and polykeptide (tetracycline) to explore their synergistic mechanism when combined with AgNPs against the multidrug-resistant bacterium Salmonella typhimurium DT 104. Enoxacin, kanamycin, neomycin, and tetracycline show synergistic growth inhibition against the Salmonella bacteria when combined with AgNPs, while ampicillin and penicillin do not. UV-vis and Raman spectroscopy studies reveal that all these four synergistic antibiotics can form complexes with AgNPs, while ampicillin and penicillin do not. The presence of tetracycline enhances the binding of Ag to Salmonella by 21% and Ag(+) release by 26% in comparison to that without tetracycline, while the presence of penicillin does not enhance the binding of Ag or Ag(+) release. This means that AgNPs first form a complex with tetracycline. The tetracycline-AgNPs complex interacts more strongly with the Salmonella cells and causes more Ag(+) release, thus creating a temporal high concentration of Ag(+) near the bacteria cell wall that leads to growth inhibition of the bacteria. These findings agree with the recent findings that Ag(+) release from AgNPs is the agent causing toxicity.
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Affiliation(s)
- Hua Deng
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Danielle McShan
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Ying Zhang
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Sudarson S. Sinha
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Zikri Arslan
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Paresh C. Ray
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Hongtao Yu
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
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Xu X, Wang Y, Wang H, Su H, Mao X, Jiang L, Liu M, Sun D, Hou S. Synthesis of triangular silver nanoprisms and studies on the interactions with human serum albumin. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.103] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Formation of different gold nanostructures by silk nanofibrils. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 64:376-382. [DOI: 10.1016/j.msec.2016.03.113] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 03/05/2016] [Accepted: 03/31/2016] [Indexed: 01/26/2023]
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Wang R, Yao Y, Shen M, Wang X. Green synthesis of Au@Ag nanostructures through a seed-mediated method and their application in SERS. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.11.076] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Li X, Zhang Y, Wu Y, Duan Y, Luan X, Zhang Q, An Q. Combined Photothermal and Surface-Enhanced Raman Spectroscopy Effect from Spiky Noble Metal Nanoparticles Wrapped within Graphene-Polymer Layers: Using Layer-by-layer Modified Reduced Graphene Oxide as Reactive Precursors. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19353-19361. [PMID: 26269466 DOI: 10.1021/acsami.5b05463] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To fabricate functionally integrated hybrid nanoparticles holds high importance in biomedical applications and is still a challenging task. In this study, we report the first reduced graphene oxide (rGO)-nobel metal hybrid particles that present simultaneously the photothermal and surface-enhanced Raman spectroscopy (SERS) effect from the inorganic part and drug loading, dispersibility, and controllability features from LbL polyelectrolyte multilayers. The hybrid particles where spiky noble metal particles were wrapped within rGO-polyelectrolyte layers were prepared by a facile and controllable method. rGO template modified using polyethylenimine (PEI) and poly(acrylic acid) (PAA) via layer-by-layer technology served as the reactive precursors, and the morphologies of the particles could be facilely controlled via controlling the number of bilayers around the rGO template. The hybrid particle presented low cytotoxicity. After loading doxorubicin hydrochloride, the particles effectively induced cell death, and photothermal treatment further decreased cell viability. rGO-Ag hybrid particles could be prepared similarly. We expect the reported method provides an effective strategy to prepare rGO-noble metal hybrid nanoparticles that find potential biomedical applications.
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Affiliation(s)
- Xiangming Li
- School of Materials Science and Technology, China University of Geosciences , Beijing, 100083, China
| | - Yihe Zhang
- School of Materials Science and Technology, China University of Geosciences , Beijing, 100083, China
| | - Yaling Wu
- School of Chemistry and Molecular Engineering, Peking University , Beijing, 100083, China
| | - Yang Duan
- School of Materials Science and Technology, China University of Geosciences , Beijing, 100083, China
| | - Xinglong Luan
- School of Materials Science and Technology, China University of Geosciences , Beijing, 100083, China
| | - Qian Zhang
- School of Materials Science and Technology, China University of Geosciences , Beijing, 100083, China
| | - Qi An
- School of Materials Science and Technology, China University of Geosciences , Beijing, 100083, China
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Kuo HF, Huang YJ, Chen YT. Investigation of Various Types of Nanorods as Sensitive Surface-Enhanced Raman Scattering Substrates. IEEE Trans Nanobioscience 2015; 14:581-90. [DOI: 10.1109/tnb.2015.2435812] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Thickness of a metallic film, in addition to its roughness, plays a significant role in SERS activity. Sci Rep 2015; 5:11644. [PMID: 26119106 PMCID: PMC5155581 DOI: 10.1038/srep11644] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 05/22/2015] [Indexed: 11/09/2022] Open
Abstract
In this paper we evaluate the effect of roughness and thickness of silver film substrates, fabricated on glass and polydimethylsiloxane (PDMS) templates, on surface-enhanced Raman Spectroscopy (SERS) activity. While the silver substrates obtained on glass templates exhibit nm-scale roughness, the silver substrates on PDMS templates show larger roughness, on the order of 10 s of nm. These roughness values do not change significantly with the thickness of the silver film. The SERS intensities of 4-aminothiophenol (ATP) deposited on these substrates strongly depend on both roughness and thickness, with more significant contribution from the roughness on thinner films. FEM simulations of the electric field intensities on surfaces of different thicknesses for rough and flat surfaces suggest higher localized plamons on thinner, rough surfaces. This study indicates that, besides roughness, the thickness of the metallic layer plays a significant role in the SERS activity.
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Liu Y, Zhou J, Wang B, Jiang T, Ho HP, Petti L, Mormile P. Au@Ag core-shell nanocubes: epitaxial growth synthesis and surface-enhanced Raman scattering performance. Phys Chem Chem Phys 2015; 17:6819-26. [PMID: 25670345 DOI: 10.1039/c4cp05642f] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel Au@Ag core-shell nanocubes (NCs) were successfully prepared by the controlled epitaxial growth of Ag shells onto Au nanoellipsoids (NEs) in the presence of surfactants. The growth mechanism of the Au@Ag core-shell NCs was systematically investigated by analyzing their morphology, optical properties, and crystallography. The localized surface plasmon resonance (LSPR) characteristics and the electric field distribution of the Au@Ag core-shell NCs were studied using the finite element method (FEM) based on the plasmon hybridization theory. Compared with pure Ag NCs, the absorption spectrum of the Au@Ag core-shell NCs exhibits a red shift and a weak shoulder near 550 nm, and the notable enhancement of electric field occurs around the corners along the long-axis of the Au ellipsoidal core because of plasmonic resonant coupling. Surface-enhanced Raman scattering (SERS) of the Au@Ag core-shell NCs labeled with 4-mercaptobenzoic acid molecules reveals that the bimetallic core-shell NCs possess efficient SERS activity with an enhancement factor EF = 2.27 × 10(6), thus confirming the possibility of using the Au@Ag core-shell NCs as a stable probe for SERS-based biosensing applications.
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Affiliation(s)
- Yanting Liu
- Institute of Photonics, Faculty of Science, Ningbo University, Ningbo 31 5211, Zhejiang, China.
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Fateixa S, Nogueira HIS, Trindade T. Hybrid nanostructures for SERS: materials development and chemical detection. Phys Chem Chem Phys 2015; 17:21046-71. [PMID: 25960180 DOI: 10.1039/c5cp01032b] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review focuses on recent developments in hybrid and nanostructured substrates for SERS (surface-enhanced Raman scattering) studies. Thus substrates composed of at least two distinct types of materials, in which one is a SERS active metal, are considered here aiming at their use as platforms for chemical detection in a variety of contexts. Fundamental aspects related to the SERS effect and plasmonic behaviour of nanometals are briefly introduced. The materials described include polymer nanocomposites containing metal nanoparticles and coupled inorganic nanophases. Chemical approaches to tailor the morphological features of these substrates in order to get high SERS activity are reviewed. Finally, some perspectives for practical applications in the context of chemical detection of analytes using such hybrid platforms are presented.
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Affiliation(s)
- Sara Fateixa
- Department of Chemistry-CICECO University of Aveiro, 3810-193 Aveiro, Portugal.
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Pan Y, Guo X, Zhu J, Wang X, Zhang H, Kang Y, Wu T, Du Y. A new SERS substrate based on silver nanoparticle functionalized polymethacrylate monoliths in a capillary, and it application to the trace determination of pesticides. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1514-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Huang J, Chen F, Zhang Q, Zhan Y, Ma D, Xu K, Zhao Y. 3D silver nanoparticles decorated zinc oxide/silicon heterostructured nanomace arrays as high-performance surface-enhanced Raman scattering substrates. ACS APPLIED MATERIALS & INTERFACES 2015; 7:5725-5735. [PMID: 25731067 DOI: 10.1021/am507857x] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Three-dimensional (3D) hierarchical nanostructures have been considered as one of the most promising surface-enhanced Raman spectroscopy (SERS) substrates because of the ordered arrangement of high-density hotspots along the third dimension direction. Herein, we reported a unique 3D nanostructure for SERS detection based on silver nanoparticles (AgNPs) decorated zinc oxide/silicon (ZnO/Si) heterostructured nanomace arrays. They were prepared by two steps: (1) Si nanoneedles were grafted onto ZnO nanorod arrays via a catalyst-assisted vapor-liquid-solid (VLS) growth mechanism. (2) AgNPs were rapidly immobilized on the surface of nanomaces by a facile galvanic displacement reaction. The fabricated substrates were employed to detect rhodamine 6G (R6G) with a detection limit down to 10(-16) M, and exhibited a high-enhanced performance (enhancement factor (EF) as high as 8.7 × 10(7)). To illustrate the potential value of the prepared substrates, the different concentrations of melamine aqueous solution (from 10(-4) to 10(-10) M) were detected, and a quantitative relationship between the SERS spectrum intensity and the melamine concentration had been established. In addition, the measure of melamine residual in pure milk was carried out successfully, and the results indicated that the prepared 3D nanomace substrates had great potential in food inspection, environment protection, and a few other technologically important fields.
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Affiliation(s)
- Jian Huang
- †State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
- ‡Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
| | - Feng Chen
- ‡Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
| | - Qing Zhang
- ‡Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
| | - Yonghua Zhan
- ⊥School of Life Sciences and Technology, Xidian University, Xi'an, Shaanxi 710071, People's Republic of China
| | - Dayan Ma
- †State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
| | - Kewei Xu
- †State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
- §Xi'an University, Xi'an, Shaanxi 710065, People's Republic of China
| | - Yongxi Zhao
- ‡Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
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Botta R, Rajanikanth A, Bansal C. Surface Enhanced Raman Scattering studies of l-amino acids adsorbed on silver nanoclusters. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2014.10.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Jiang J, Wang S, Wu H, Zhang J, Li H, Jia J, Wang X, Liao J. Facile and rapid fabrication of large-scale silver nanoparticles arrays with high SERS performance. RSC Adv 2015. [DOI: 10.1039/c5ra22358j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile and rapid self-assembly method for fabricating a high performance SERS substrate was reported here by using ascorbic acid as an active reagent.
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Affiliation(s)
- Jiaolai Jiang
- Science and Technology on Surface Physics and Chemistry Laboratory
- Jiangyou
- P. R. China
| | - Shaofei Wang
- Science and Technology on Surface Physics and Chemistry Laboratory
- Jiangyou
- P. R. China
| | - Haoxi Wu
- Science and Technology on Surface Physics and Chemistry Laboratory
- Jiangyou
- P. R. China
| | - Jing Zhang
- Institute of Fluid Physics
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Haibo Li
- Science and Technology on Surface Physics and Chemistry Laboratory
- Jiangyou
- P. R. China
| | - Jianping Jia
- Science and Technology on Surface Physics and Chemistry Laboratory
- Jiangyou
- P. R. China
| | - Xiaolin Wang
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Junsheng Liao
- Science and Technology on Surface Physics and Chemistry Laboratory
- Jiangyou
- P. R. China
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Recent approaches toward creation of hot spots for SERS detection. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2014. [DOI: 10.1016/j.jphotochemrev.2014.09.001] [Citation(s) in RCA: 216] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Wu P, Gao Y, Lu Y, Zhang H, Cai C. High specific detection and near-infrared photothermal therapy of lung cancer cells with high SERS active aptamer-silver-gold shell-core nanostructures. Analyst 2014; 138:6501-10. [PMID: 24040647 DOI: 10.1039/c3an01375h] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Lung cancer is the leading cause of cancer death worldwide. Its early detection is of paramount importance for diagnosis, classification, treatment, and improvement of survivorship. However, current methods are not sensitive enough to detect lung cancer in its nascent stage. We reported an aptamer-Ag-Au shell-core nanostructure-based surface-enhanced Raman scattering (SERS) assay for sensitive and specific detection, and near-infrared (NIR) photothermal therapy of lung adenocarcinoma cells (A549 cells). The nanostructures target the cells with high affinity and specificity via the specific interaction between the aptamer (a 45-base oligonucleotide) and the cell, and distinguish A549 cells from other types of cancer cells (HeLa and MCF-7 cells) and subtypes of lung cancer cells (NCI-H157, NCI-H520, NCI-H1299, and NCI-H446 cells). The nanostructures have a high capability to absorb NIR irradiation and are able to perform photothermal therapy of the cells at a very low irradiation power density (0.20 W cm(-2)) without destroying the healthy cells and the surrounding normal tissues. In addition, the nanostructures exhibit a high SERS activity. Based on the SERS signal of the labeled Raman reporter (Rh6G molecules), we can specifically detect A549 cells at a very low abundance (~10 cells per mL) and monitor the therapy process of the cancer cells. Therefore, this nanostructure-based SERS assay has great potential in specific recognition, sensitive detection, and effective photothermal therapy of lung cancer.
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Affiliation(s)
- Ping Wu
- Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, P.R. China.
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Du P, Ma L, Cao Y, Li D, Liu Z, Wang Z, Sun Z. Stable Ag@oxides nanoplates for surface-enhanced Raman spectroscopy of amino acids. ACS APPLIED MATERIALS & INTERFACES 2014; 6:8853-8858. [PMID: 24837067 DOI: 10.1021/am501637d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Surface enhancement Raman scattering (SERS) is a powerful technique for detecting low-concentration analytes (chemicals and biochemicals). Herein, a high-performance SERS biosensing system has been created by using highly stable Ag@oxides nanoplates as enhancers. The Ag nanoplates were stabilized by coating a uniform ultrathin layer of oxides (SiO2 or TiO2) on the Ag surface through a simple sol-gel route. The thin oxide layer allows the plasmonic property of the original Ag nanoplates to be retained while preventing their contact with external etchants. The oxides provide an excellent platform for binding all kinds of molecules that contain a COOH group in addition to a SH group. We demonstrate that Ag@oxides have high performance with respect to the typical SERS molecule 4-ATP, which contains a typical SH group. Ag@oxides also can be directly employed for the SERS detection of amino acids. The highly stable Ag@oxides nanoplates are believed to hold great promise for fabricating a wide range of biosensors for the detection of many other biomolecules and may also find many interesting opportunities in the fields of biological labeling and imaging.
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Affiliation(s)
- Peng Du
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , 3888 East Nanhu Road, Changchun, P. R. China
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48
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Liou YCM, Chen JY, Yang J. Enhancement of Raman scattering for silver nanoparticles located on electrolessly roughened silicon. APPLIED SPECTROSCOPY 2014; 68:172-178. [PMID: 24480272 DOI: 10.1366/13-07162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To study the effect of roughness of a supporting substrate to Raman enhancement, silver nanoparticles (AgNPs) were prepared on Si with different degrees of roughness. To roughen the surface of silicon, electroless displacement was used first to grow AgNPs on smooth Si. By chemically removing the resulting AgNPs, an electrolessly roughened Si surface can be exposed. A second electroless displacement then was performed to grow new AgNPs on the roughened Si crystal to form surface-enhanced Raman scattering substrates. Another approach, called the protecting method, also was proposed and demonstrated to structure AgNPs on surface-roughened Si. In this second method, electroless displacement also was used to grow AgNPs on the Si crystal. The resulting AgNPs then were protected by thio compounds to control removal of the outer layer of AgNPs, thereby exposing the underlying AgNPs located directly on the electroless roughened Si surface. Results indicate that the structure of AgNPs on roughened Si surfaces provides approximately two orders of magnitude higher enhancement than AgNPs on non-roughened Si, and the substrates prepared in this work are highly sensitive, with enhancement factors reaching 10(8).
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Affiliation(s)
- Yen-Chen Maggie Liou
- Department of Chemistry, National Chung-Hsing University, Taichung 402, Taiwan, Republic of China
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Silver nanoparticles doped agarose disk: Highly sensitive surface-enhanced Raman scattering substrate for in situ analysis of ink dyes. Forensic Sci Int 2013; 233:21-7. [DOI: 10.1016/j.forsciint.2013.08.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 07/28/2013] [Accepted: 08/05/2013] [Indexed: 11/22/2022]
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50
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Huang CW, Lin BJ, Lin HY, Huang CH, Shih FY, Wang WH, Liu CY, Chui HC. Surface-enhanced Raman scattering of suspended monolayer graphene. NANOSCALE RESEARCH LETTERS 2013; 8:480. [PMID: 24229405 PMCID: PMC3842687 DOI: 10.1186/1556-276x-8-480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 10/30/2013] [Indexed: 06/02/2023]
Abstract
The interactions between phonons and electrons induced by the dopants or the substrate of graphene in spectroscopic investigation reveal a rich source of interesting physics. Raman spectra and surface-enhanced Raman spectra of supported and suspended monolayer graphenes were measured and analyzed systemically with different approaches. The weak Raman signals are greatly enhanced by the ability of surface-enhanced Raman spectroscopy which has attracted considerable interests. The technique is regarded as wonderful and useful tool, but the dopants that are produced by depositing metallic nanoparticles may affect the electron scattering processes of graphene. Therefore, the doping and substrate influences on graphene are also important issues to be investigated. In this work, the peak positions of G peak and 2D peak, the I2D/IG ratios, and enhancements of G and 2D bands with suspended and supported graphene flakes were measured and analyzed. The peak shifts of G and 2D bands between the Raman and SERS signals demonstrate the doping effect induced by silver nanoparticles by n-doping. The I2D/IG ratio can provide a more sensitive method to carry out the doping effect on the graphene surface than the peak shifts of G and 2D bands. The enhancements of 2D band of suspended and supported graphenes reached 138, and those of G band reached at least 169. Their good enhancements are helpful to measure the optical properties of graphene. The different substrates that covered the graphene surface with doping effect are more sensitive to the enhancements of G band with respect to 2D band. It provides us a new method to distinguish the substrate and doping effect on graphene. PACS: 78.67.Wj (optical properties of graphene); 74.25.nd (Raman and optical spectroscopy); 63.22.Rc (phonons in graphene).
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Affiliation(s)
- Cheng-Wen Huang
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Bing-Jie Lin
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsing-Ying Lin
- Center for Nano Bio-Detection, National Chung Cheng University, Chiayi 621, Taiwan
| | - Chen-Han Huang
- Center for Nano Bio-Detection, National Chung Cheng University, Chiayi 621, Taiwan
| | - Fu-Yu Shih
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Wei-Hua Wang
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Chih-Yi Liu
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
- Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsiang-Chen Chui
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
- Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan
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