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Sulfur-doped carbon dots@polydopamine-functionalized magnetic silver nanocubes for dual-modality detection of norovirus. Biosens Bioelectron 2021; 193:113540. [PMID: 34403935 DOI: 10.1016/j.bios.2021.113540] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/23/2021] [Accepted: 08/01/2021] [Indexed: 12/27/2022]
Abstract
Synergistic dual-mode optical platforms are up-and-coming detection tools in the diagnosis and management of infectious diseases. Here, novel dual-modality fluorescence (FL) and surface-enhanced Raman scattering (SERS) techniques have been integrated into a single probe for the rapid and ultrasensitive detection of norovirus (NoV). The developed FL-SER-based biosensor relies on the dual-signal enhancements of newly synthesized sulfur-doped agar-derived carbon dots (S-agCDs). The antigen-antibody immunoreaction results in forming a core-satellite immunocomplex between anti-NoV antibody-conjugated S-agCDs and polydopamine-functionalized magnetic silver nanocubes [poly (dop)-MNPs-Ag NCs]. By deploying an immunomagnetic enrichment protocol and performing the SERS modality on a single-layer graphene substrate, norovirus-like particles (NoV-LPs) were detected across a wide range of 1 fg mL-1 - 10 ng mL-1 with an excellent limit of detection of 0.1 fg mL-1. The combined advantage of the dual-signaling properties of the biosensor was demonstrated using FL confocal imaging for "hotspots" tracking prior to SERS detection of clinical NoV in fecal specimen down to ⁓10 RNA copies mL-1. The proposed dual-modality biosensor's performance increases the prospect of a rapid and low-cost sensitive NoV detection and surveillance option for public health.
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2
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Seo MJ, Ryu KR, Kim GW, Ha JW. Effect of chemisorbed thiophenols with an electron donating group on surface-enhanced Raman scattering of gold nanorods. Phys Chem Chem Phys 2020; 22:14832-14837. [PMID: 32579626 DOI: 10.1039/d0cp02708a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface-enhanced Raman scattering (SERS) is a powerful technique to amplify the weak Raman scattering intensity by molecules chemisorbed on a metallic surface. Herein, we present the interfacial electronic effect of para-substituted aromatic thiophenols (TPs) with an electron donating group (EDG) on SERS of anisotropic gold nanorods (AuNRs) under resonant conditions. Probe molecules with an EDG showed great SERS enhancement in AuNRs at the resonant excitation wavelength. We found that the SERS enhancement with an EDG is caused by the formation of aggregates through intermolecular interactions among probe molecules, such as dimerization with hydrogen bonding via an amino group (-NH2) of p-aminothiophenol (p-ATP) and hydroxyl group (-OH) of p-mercaptophenol (p-MP), resulting in hot-spots between AuNRs. Furthermore, SERS having a stronger EDG (-NH2, p-ATP) with the Hammett constant of -0.66 exhibited greater enhancement than p-MP having hydroxyl (-OH) groups with the Hammett constant of -0.37. We found that the greater enhancement is ascribed to the temporary formation of a positively charged electron withdrawing group (-NH3+) in p-ATP, unlike p-MP, via the interaction of the lone pair of the amino group (-NH2) with ethanol. Therefore, this investigation provides new insightful experimental observations on SERS enhancement of probe molecules with an EDG.
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Affiliation(s)
- Min Jung Seo
- Department of Chemistry, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea.
| | - Kyeong Rim Ryu
- Department of Chemistry, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea.
| | - Geun Wan Kim
- Department of Chemistry, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea. and Energy Harvest-Storage Research Center (EHSRC), University of Ulsan, 93 Daehak-ro, Nam-gu, 44610, Republic of Korea
| | - Ji Won Ha
- Department of Chemistry, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea. and Energy Harvest-Storage Research Center (EHSRC), University of Ulsan, 93 Daehak-ro, Nam-gu, 44610, Republic of Korea
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3
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Ren X, Li X. Flower-like Ag coated with molecularly imprinted polymers as a surface-enhanced Raman scattering substrate for the sensitive and selective detection of glibenclamide. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:2858-2864. [PMID: 32930209 DOI: 10.1039/d0ay00575d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Flower-like Ag was formed by nanosheet self-assembly as a SERS-active substrate and was utilized for the preparation of flower-like Ag@molecularly imprinted polymers (MIPs) as a surface-enhanced Raman scattering (SERS) sensor. Based on the combination of the molecular imprinting technique and SERS technology, the flower-like Ag@MIPs with high sensitivity and excellent selectivity were used as SERS substrates for the detection of glibenclamide. The imprinted layer could effectively protect the flower-like Ag from oxidation and thereby may improve the stability of the SERS substrate. The intensities of the characteristic peaks obtained for the flower-like Ag@MIPs were higher than that of flower-like Ag. By applying the flower-like Ag@MIPs as an efficient and ultra-sensitive SERS platform, glibenclamide was quantitatively detected in trace concentrations as low as 1 ng mL-1. Furthermore, the SERS enhancement for the flower-like Ag@MIPs was due to the synergetic effect between electromagnetic enhancement and chemical enhancement. We believe that this reliable method can open up new opportunities for practical chemosensor or biosensor applications.
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Affiliation(s)
- Xiaohui Ren
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
| | - Xin Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
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4
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An P, Anumula R, Wu H, Han J, Luo Z. Charge transfer interactions of pyrazine with Ag 12 clusters towards precise SERS chemical mechanism. NANOSCALE 2018; 10:16787-16794. [PMID: 30160289 DOI: 10.1039/c8nr05253k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We have synthesized Ag12 nanoclusters (NCs) with mercaptosuccinic acid (H2SMA) as the ligand. This cluster is found to be water-soluble and has satisfactory stability with [Ag12(HSMA)6Na6]2+, as determined by high-resolution mass spectrometry. Interestingly, it is noted that both the H2SMA ligand and Ag12 clusters do not display interference Raman signals, suggesting that this material is a good candidate as a substrate for surface-enhanced Raman spectroscopy (SERS). As a result, we observe enhanced Raman activity of pyrazine molecules adsorbed on Ag12 NCs along with a large red-shift up to ∼27 cm-1. To fully demonstrate the charge transfer interactions between pyrazine and Ag12 clusters, by utilizing first-principles calculations, we estimate polarizability tensor and conduct electronic natural population analysis (NPA), natural bond orbital (NBO) analysis, deformation density analysis (DDA) and charge decomposition analysis (CDA). In view of the minimized contribution from local surface plasmon resonance (LSPR), such a comprehensive study of metal NCs, which are free of Raman interference, provides a modelling method towards the long-debated chemical mechanism in SERS theory.
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Affiliation(s)
- Pan An
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
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Crouch GM, Han D, Bohn PW. Zero-Mode Waveguide Nanophotonic Structures for Single Molecule Characterization. JOURNAL OF PHYSICS D: APPLIED PHYSICS 2018; 51:193001. [PMID: 34158676 PMCID: PMC8216246 DOI: 10.1088/1361-6463/aab8be] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Single-molecule characterization has become a crucial research tool in the chemical and life sciences, but limitations, such as limited concentration range, inability to control molecular distributions in space, and intrinsic phenomena, such as photobleaching, present significant challenges. Recent developments in non-classical optics and nanophotonics offer promising routes to mitigating these restrictions, such that even low affinity (K D ~ mM) biomolecular interactions can be studied. Here we introduce and review specific nanophotonic devices used to support single molecule studies. Optical nanostructures, such as zero-mode waveguides (ZMWs), are usually fabricated in thin gold or aluminum films and serve to confine the observation volume of optical microspectroscopy to attoliter to zeptoliter volumes. These simple nanostructures allow individual molecules to be isolated for optical and electrochemical analysis, even when the molecules of interest are present at high concentration (μM - mM) in bulk solution. Arrays of ZMWs may be combined with optical probes such as single molecule fluorescence, single molecule fluorescence resonance energy transfer (smFRET), and fluorescence correlation spectroscopy (FCS) for distributed analysis of large numbers of single-molecule reactions or binding events in parallel. Furthermore, ZMWs may be used as multifunctional devices, for example by combining optical and electrochemical functions in a single discrete architecture to achieve electrochemical ZMWs (E-ZMW). In this review, we will describe the optical properties, fabrication, and applications of ZMWs for single-molecule studies, as well as the integration of ZMWs into systems for chemical and biochemical analysis.
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Affiliation(s)
- Garrison M. Crouch
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556
| | - Donghoon Han
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556
| | - Paul W. Bohn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556
- Departmemt of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556
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6
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Min K, Jeon WJ, Kim Y, Choi JY, Yu HK. Spontaneous nano-gap formation in Ag film using NaCl sacrificial layer for Raman enhancement. NANOTECHNOLOGY 2018; 29:105502. [PMID: 29328061 DOI: 10.1088/1361-6528/aaa746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report the method of fabrication of nano-gaps (known as hot spots) in Ag thin film using a sodium chloride (NaCl) sacrificial layer for Raman enhancement. The Ag thin film (20-50 nm) on the NaCl sacrificial layer undergoes an interfacial reaction due to the AgCl formed at the interface during water molecule intercalation. The intercalated water molecules can dissolve the NaCl molecules at interfaces and form the ionic state of Na+ and Cl-, promoting the AgCl formation. The Ag atoms can migrate by the driving force of this interfacial reaction, resulting in the formation of nano-size gaps in the film. The surface-enhanced Raman scattering activity of Ag films with nano-size gaps has been investigated using Raman reporter molecules, Rhodamine 6G (R6G).
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Affiliation(s)
- Kyungchan Min
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Republic of Korea. Department of Materials Science and Engineering, Ajou, University, Suwon, 16499, Republic of Korea
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7
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Zhang Y, Yang C, Xue B, Peng Z, Cao Z, Mu Q, Xuan L. Highly effective and chemically stable surface enhanced Raman scattering substrates with flower-like 3D Ag-Au hetero-nanostructures. Sci Rep 2018; 8:898. [PMID: 29343742 PMCID: PMC5772549 DOI: 10.1038/s41598-018-19165-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 12/22/2017] [Indexed: 11/17/2022] Open
Abstract
We demonstrated flower-like 3D Ag-Au hetero-nanostructures on an indium tin oxide glass (ITO glass) for surface enhanced Raman scattering (SERS) applications. The flower-like 3D Ag nanostructures were obtained through electrodeposition with liquid crystalline soft template which is simple, controllable and cost effective. The flower-like 3D Ag-Au hetero-nanostructures were further fabricated by galvanic replacement reaction of gold (III) chloride trihydrate (HAuCl4·3H2O) solution and flower-like Ag. The flower-like Ag-Au hetero-nanostructure exhibited stronger SERS effects and better chemical stability compared with flower-like Ag nanostructure. The localized surface plasmon resonance (LSPR) spectra, field emission scanning electron microscope (FESEM) photos and Ag-Au ratios were studied which show that the surface morphology and shape of the flower-like Ag-Au hetero-nanostructure play significant roles in enhancing SERS. The flower-like 3D Ag-Au hetero-nanostructures fabricated by electrodeposition in liquid crystalline template and galvanic replacement reaction are simple, cheap, controllable and chemical stable. It is a good candidate for applications in SERS detection and imaging.
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Affiliation(s)
- Ying Zhang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, 130033, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chengliang Yang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, 130033, China.
| | - Bin Xue
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, 130033, China
| | - Zenghui Peng
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, 130033, China
| | - Zhaoliang Cao
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, 130033, China
| | - Quanquan Mu
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, 130033, China
| | - Li Xuan
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, 130033, China
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8
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Zhu C, Wang X, Shi X, Yang F, Meng G, Xiong Q, Ke Y, Wang H, Lu Y, Wu N. Detection of Dithiocarbamate Pesticides with a Spongelike Surface-Enhanced Raman Scattering Substrate Made of Reduced Graphene Oxide-Wrapped Silver Nanocubes. ACS APPLIED MATERIALS & INTERFACES 2017; 9:39618-39625. [PMID: 29058868 DOI: 10.1021/acsami.7b13479] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Dithiocarbamate (DTC) pesticides are widely used for fruits, vegetables, and mature crops to control fungal diseases. Their residues in food could pose a threat to human health. Therefore, a surface-enhanced Raman scattering-based (SERS-based) sensor is developed to detect DTC pesticides because SERS can provide the characteristic spectrum of pesticides and avoid the use of a molecular recognition probe in the sensor. For the acquisition of high sensitivity, good anti-interference ability, and robustness of the SERS sensor, a silver nanocube-reduced graphene oxide (AgNC-rGO) sponge is devised. In the AgNC-rGO sponge, the rGO sheets form a porous scaffold that physically holds the AgNCs, which create narrow gaps between the neighboring AgNCs, leading to the formation of "hot spots" for SERS-signal amplification. When DTC pesticides coexist with aromatic pesticides in a sample matrix, the AgNC-rGO sponge can selectively detect DTC pesticides because of the preferential adsorption of DTC pesticides on the Ag surface and aromatic pesticides on the rGO surface, which can effectively eliminate the interference of the SERS signals of aromatic pesticides, and facilitate the qualitative and quantitative analysis of DTC pesticides. The AgNC-rGO sponge shows great potential as a SERS substrate for selective detection of DTC pesticides.
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Affiliation(s)
- Chuhong Zhu
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Xiujuan Wang
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Xiaofei Shi
- Industrial and Management Systems Engineering Department, West Virginia University , Morgantown, West Virginia 26506, United States
| | - Feng Yang
- Industrial and Management Systems Engineering Department, West Virginia University , Morgantown, West Virginia 26506, United States
| | - Guowen Meng
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Qizhong Xiong
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Yan Ke
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Hua Wang
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
| | - Yilin Lu
- Institute of Technical Biology and Agriculture Engineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, China
| | - Nianqiang Wu
- Department of Mechanical and Aerospace Engineering, West Virginia University , P.O. Box 6106, Morgantown, West Virginia 26506, United States
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9
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Zhang Y, Yang P, Habeeb Muhammed MA, Alsaiari SK, Moosa B, Almalik A, Kumar A, Ringe E, Khashab NM. Tunable and Linker Free Nanogaps in Core-Shell Plasmonic Nanorods for Selective and Quantitative Detection of Circulating Tumor Cells by SERS. ACS APPLIED MATERIALS & INTERFACES 2017; 9:37597-37605. [PMID: 28990755 DOI: 10.1021/acsami.7b10959] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Controlling the size, number, and shape of nanogaps in plasmonic nanostructures is of significant importance for the development of novel quantum plasmonic devices and quantitative sensing techniques such as surface-enhanced Raman scattering (SERS). Here, we introduce a new synthetic method based on coordination interactions and galvanic replacement to prepare core-shell plasmonic nanorods with tunable enclosed nanogaps. Decorating Au nanorods with Raman reporters that strongly coordinate Ag+ ions (e.g., 4-mercaptopyridine) afforded uniform nucleation sites to form a sacrificial Ag shell. Galvanic replacement of the Ag shell by HAuCl4 resulted in Au-AgAu core-shell structure with a uniform intra-nanoparticle gap. The size (length and width) and morphology of the core-shell plasmonic nanorods as well as the nanogap size depend on the concentration of the coordination complexes formed between Ag+ ions and 4-mercaptopyridine. Moreover, encapsulating Raman reporters within the nanogaps afforded an internal standard for sensitive and quantitative SERS analysis. To test the applicability, core-shell plasmonic nanorods were functionalized with aptamers specific to circulating tumor cells such as MCF-7 (Michigan Cancer Foundation-7, breast cancer cell line). This system could selectively detect as low as 20 MCF-7 cells in a blood mimicking fluid employing SERS. The linking DNA duplex on core-shell plasmonic nanorods can also intercalate hydrophobic drug molecules such as Doxorubicin, thereby increasing the versatility of this sensing platform to include drug delivery. Our synthetic method offers the possibility of developing multifunctional SERS-active materials with a wide range of applications including biosensing, imaging, and therapy.
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Affiliation(s)
- Yang Zhang
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Peng Yang
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Madathumpady Abubaker Habeeb Muhammed
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Shahad K Alsaiari
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Basem Moosa
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Abdulaziz Almalik
- Life Sciences and Environment Research Institute, Center of Excellence in Nanomedicine (CENM), King Abdulaziz City for Science and Technology (KACST) , Riyadh 11461, Saudi Arabia
| | | | | | - Niveen M Khashab
- Smart Hybrid Materials Laboratory (SHMs), Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
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10
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Sustained and Cost Effective Silver Substrate for Surface Enhanced Raman Spectroscopy Based Biosensing. Sci Rep 2017; 7:6917. [PMID: 28761047 PMCID: PMC5537298 DOI: 10.1038/s41598-017-07186-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 06/22/2017] [Indexed: 01/10/2023] Open
Abstract
While surface enhanced Raman spectroscopy (SERS) based biosensing has demonstrated great potential for point-of-care diagnostics in the laboratory, its application in the field is limited by the short life time of commonly used silver based SERS active substrates. In this work, we report our attempt towards SERS based field biosensing, involving the development of a novel sustained and cost-effective substrate composed of silver nanoparticles protected by small nitrogen-doped Graphene Quantum Dots, i.e. Ag NP@N-GQD, and its systematic evaluation for glucose sensing. The new substrate demonstrated significantly stronger Raman enhancement compared to pure silver nanoparticles. More importantly, the new substrate preserved SERS performance in a normal indoor environment for at least 30 days in both the wet and dry states, in contrast to only 10 days for pure silver nanoparticles. The Ag NP@N-GQD thin film in the dry state was then successfully applied as a SERS substrate for glucose detection in mouse blood samples. The new substrate was synthesized under mild experimental conditions, and the cost increase due to N-GQD was negligible. These results suggest that the Ag NP@N-GQD is a cost-effective and sustained SERS substrate, the development of which represents an important step towards SERS based field biosensing.
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11
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Zhao H, Hasi W, Bao L, Han S, Sha X, Sun J, Lou X, Lin D, Lv Z. Rapid Detection of Sildenafil Drugs in Liquid Nutraceuticals Based on Surface-Enhanced Raman Spectroscopy Technology. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700168] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hang Zhao
- National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology
- ; Harbin Heilongjiang 150080 China
| | - Wuliji Hasi
- National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology
- ; Harbin Heilongjiang 150080 China
| | - Lin Bao
- National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology
- ; Harbin Heilongjiang 150080 China
| | - Siqingaowa Han
- Affiliated Hospital of Inner Mongolia University for the Nationalities; Tongliao Inner Mongolia 028007 China
| | - Xuanyu Sha
- National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology
- ; Harbin Heilongjiang 150080 China
| | - Jia Sun
- National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology
- ; Harbin Heilongjiang 150080 China
| | - Xiutao Lou
- National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology
- ; Harbin Heilongjiang 150080 China
| | - Dianyang Lin
- National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology
- ; Harbin Heilongjiang 150080 China
| | - Zhiwei Lv
- National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology
- ; Harbin Heilongjiang 150080 China
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12
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Wang Y, Su Z, Wang L, Dong J, Xue J, Yu J, Wang Y, Hua X, Wang M, Zhang C, Liu F. SERS Assay for Copper(II) Ions Based on Dual Hot-Spot Model Coupling with MarR Protein: New Cu2+-Specific Biorecognition Element. Anal Chem 2017; 89:6392-6398. [DOI: 10.1021/acs.analchem.6b05106] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yulong Wang
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
| | - Zhenhe Su
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
| | - Limin Wang
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
| | - Jinbo Dong
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
| | - Juanjuan Xue
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
| | - Jiao Yu
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
| | - Yuan Wang
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
| | - Xiude Hua
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
| | - Minghua Wang
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
| | - Cunzheng Zhang
- Institute
of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, 210014, P.R.China
| | - Fengquan Liu
- College
of Plant Protection (Key Laboratory of Integrated Management of Crop
Diseases and Pests), Nanjing Agricultural University, Nanjing, 210095, P.R.China
- Institute
of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, 210014, P.R.China
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13
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Abstract
SERS signal enhancements inside and outside the junctions of the dimers were experimentally calculated.
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Affiliation(s)
- Hyeokjin Yoon
- Department of Chemistry
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Jung Sang Suh
- Department of Chemistry
- Seoul National University
- Seoul 08826
- Republic of Korea
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14
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Guo L, Liang K, Marcus K, Li Z, Zhou L, Mani PD, Chen H, Shen C, Dong Y, Zhai L, Coffey KR, Orlovskaya N, Sohn YH, Yang Y. Enhanced Photoelectrocatalytic Reduction of Oxygen Using Au@TiO 2 Plasmonic Film. ACS APPLIED MATERIALS & INTERFACES 2016; 8:34970-34977. [PMID: 27958697 DOI: 10.1021/acsami.6b14586] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Novel Au@TiO2 plasmonic films were fabricated by individually placing Au nanoparticles into TiO2 nanocavity arrays through a sputtering and dewetting process. These discrete Au nanoparticles in TiO2 nanocavities showed strong visible-light absorption due to the plasmonic resonance. Photoelectrochemical studies demonstrated that the developed Au@TiO2 plasmonic films exhibited significantly enhanced catalytic activities toward oxygen reduction reactions with an onset potential of 0.92 V (vs reversible hydrogen electrode), electron transfer number of 3.94, and limiting current density of 5.2 mA cm-2. A superior ORR activity of 310 mA mg-1 is achieved using low Au loading mass. The isolated Au nanoparticle size remarkably affected the catalytic activities of Au@TiO2, and TiO2 coated with 5 nm Au (Au5@TiO2) exhibited the best catalytic function to reduce oxygen. The plasmon-enhanced reductive activity is attributed to the surface plasmonic resonance of isolated Au nanoparticles in TiO2 nanocavities and suppressed electron recombination. This work provides comprehensive understanding of a novel plasmonic system using isolated noble metals into nanostructured semiconductor films as a potential alternative catalyst for oxygen reduction reaction.
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Affiliation(s)
- Limin Guo
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Kun Liang
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Kyle Marcus
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Zhao Li
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Le Zhou
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Prabhu Doss Mani
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Hao Chen
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Chen Shen
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Yajie Dong
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Lei Zhai
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Kevin R Coffey
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Nina Orlovskaya
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Yong-Ho Sohn
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
| | - Yang Yang
- NanoScience Technology Center, §Department of Materials Science & Engineering, ⊥College of Optics & Photonics (CREOL), ||College of Engineering, #Department of Chemistry, and ¶Department of Mechanical and Aerospace Engineering, University of Central Florida , 4000 Central Florida Boulevard. Orlando, Florida 32816, United States
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15
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Hu C, Chen S, Wang Y, Liu X, Liu J, Zhang W, Chen J, Zhang W. Highly sensitive and well reproducible Surface-enhanced Raman spectroscopy from silver triangular platelets. Talanta 2016; 161:599-605. [DOI: 10.1016/j.talanta.2016.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 07/25/2016] [Accepted: 08/02/2016] [Indexed: 11/26/2022]
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16
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One step ‘dip’ and ‘use’ Ag nanostructured thin films for ultrahigh sensitive SERS Detection. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:831-836. [DOI: 10.1016/j.msec.2016.07.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 07/06/2016] [Accepted: 07/15/2016] [Indexed: 11/22/2022]
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17
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Zhou N, Meng G, Huang Z, Ke Y, Zhou Q, Hu X. A flexible transparent Ag-NC@PE film as a cut-and-paste SERS substrate for rapid in situ detection of organic pollutants. Analyst 2016; 141:5864-5869. [PMID: 27603329 DOI: 10.1039/c6an00807k] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This report presents a simple and inexpensive fabrication approach to a flexible transparent composite film as a "cut-and-paste" surface-enhanced Raman scattering (SERS) substrate for in situ detection of organic pollutants. First, a self-assembled monolayer of Ag-nanocubes (Ag-NCs) is obtained at the air/water interface. Then, the Ag-NC monolayer is retrieved onto a flexible transparent polyethylene (PE) film to achieve an Ag-NC@PE composite film as a flexible SERS substrate. As the Ag-NCs in the monolayer are closely and uniformly packed on the PE film, the Ag-NC@PE composite film shows high SERS-activity with good signal homogeneity and reproducibility. Furthermore, the flexible transparent Ag-NC@PE composite film is "cut into" small pieces and directly "pasted" onto contaminated fruits for in situ SERS detection, as a result 10 nM thiram, 1 μM 4-polychlorinated biphenyl and 10 nM methyl parathion contaminants on oranges are detected, respectively. Therefore the Ag-NC@PE composite film is an inexpensive and effective SERS substrate for rapid in situ detection of organic pollutants in aqueous solutions, on fruits and other solid objects.
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Affiliation(s)
- Ningning Zhou
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China.
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18
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Kibar G, Topal AE, Dana A, Tuncel A. Newly designed silver coated-magnetic, monodisperse polymeric microbeads as SERS substrate for low-level detection of amoxicillin. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.04.086] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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19
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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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20
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Li K, Jiang K, Zhang L, Wang Y, Mao L, Zeng J, Lu Y, Wang P. Raman scattering enhanced within the plasmonic gap between an isolated Ag triangular nanoplate and Ag film. NANOTECHNOLOGY 2016; 27:165401. [PMID: 26939539 DOI: 10.1088/0957-4484/27/16/165401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Enhanced electromagnetic field in the tiny gaps between metallic nanostructures holds great promise in optical applications. Herein, we report novel out-of-plane nanogaps composed of micrometer-sized Ag triangular nanoplates (AgTN) on Ag films. Notably, the new coupled plasmonic structure can dramatically enhance the surface-enhanced Raman scattering (SERS) by visible laser excitation, although the micrometer-sized AgTN has localized plasmon resonance at infrared wavelength. This enhancement is derived from the gap plasmon polariton between the AgTN and Ag film, which is excited via the antenna effect of the corner and edge of the AgTN. Systematic SERS studies indicated that the plasmon enhancement was on the order of corner > edge > face. These results were further verified by theoretical simulations. Our device paves the way for rational design of sensitive SERS substrates by judiciously choosing appropriate nanoparticles and optimizing the gap distance.
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Affiliation(s)
- Kuanguo Li
- Department of Optics and Optical Engineering & Anhui Key Laboratory of Optoelectronic Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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21
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Shi Y, Liu W, Chen C. Two-Step Centrifugation Method for Subpicomolar Surface-Enhanced Raman Scattering Detection. Anal Chem 2016; 88:5009-15. [PMID: 27064074 DOI: 10.1021/acs.analchem.6b01194] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The potentiality of surface-enhanced Raman scattering (SERS) to detect ultralow concentrations of analyte has attracted much attention in detection of trace components in both medicinal and environmental samples. However, detection at trace concentration usually requires sophisticated systems. Here, we present an ultrasensitive and facile SERS approach, a two-step centrifugation method, which achieved a detection limit of 500 fM with phenformin hydrochloride and risperidone as acidic and alkaline analyte, respectively. This method consists of two steps: (1) centrifuging colloidal silver to increase nanoparticles' concentration and to remove small-size nanoparticles, thus increasing the chance of analyte adsorption on large nanoparticles that have strong SERS activity; (2) centrifuging samples after the analytes were mixed with nanoparticles. After the first centrifugation and mixing with aqueous analyte, the colloidal silver is either flocculated (for high-concentration samples) or forms a nanoparticle-analyte complex (for low-concentration samples). Until the second centrifugation, the concentration of analyte and hot-spot formation is significantly increased, and thus a high SERS enhancement factor is obtained. In short, the two-step centrifugation method overcomes drawbacks of the traditional method, which demands not only sophisticated operation but also expensive instruments, to fully exploit the potential of SERS detection.
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Affiliation(s)
- Yuye Shi
- School of Pharmaceutical Sciences, Central South University , Changsha, Hunan 410013, People's Republic of China
| | - Wenfang Liu
- School of Pharmaceutical Sciences, Central South University , Changsha, Hunan 410013, People's Republic of China
| | - Chuanpin Chen
- School of Pharmaceutical Sciences, Central South University , Changsha, Hunan 410013, People's Republic of China
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22
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Lee J, Zhang Q, Park S, Choe A, Fan Z, Ko H. Particle-Film Plasmons on Periodic Silver Film over Nanosphere (AgFON): A Hybrid Plasmonic Nanoarchitecture for Surface-Enhanced Raman Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2016; 8:634-642. [PMID: 26684078 DOI: 10.1021/acsami.5b09753] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Plasmonic systems based on particle-film plasmonic couplings have recently attracted great attention because of the significantly enhanced electric field at the particle-film gaps. Here, we introduce a hybrid plasmonic architecture utilizing combined plasmonic effects of particle-film gap plasmons and silver film over nanosphere (AgFON) substrates. When gold nanoparticles (AuNPs) are assembled on AgFON substrates with controllable particle-film gap distances, the AuNP-AgFON system supports multiple plasmonic couplings from interparticle, particle-film, and crevice gaps, resulting in a huge surface-enhanced Raman spectroscopy (SERS) effect. We show that the periodicity of AgFON substrates and the particle-film gaps greatly affects the surface plasmon resonances, and thus, the SERS effects due to the interplay between multiple plasmonic couplings. The optimally designed AuNP-AgFON substrate shows a SERS enhancement of 233 times compared to the bare AgFON substrate. The ultrasensitive SERS sensing capability is also demonstrated by detecting glutathione, a neurochemical molecule that is an important antioxidant, down to the 10 pM level.
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Affiliation(s)
- Jiwon Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science & Technology (UNIST) , Ulsan 44919, Republic of Korea
| | - Qianpeng Zhang
- Department of Electronic & Computer Engineering, Hong Kong University of Science & Technology (HKUST) , Hong Kong SAR, China
| | - Seungyoung Park
- School of Energy and Chemical Engineering, Ulsan National Institute of Science & Technology (UNIST) , Ulsan 44919, Republic of Korea
| | - Ayoung Choe
- School of Energy and Chemical Engineering, Ulsan National Institute of Science & Technology (UNIST) , Ulsan 44919, Republic of Korea
| | - Zhiyong Fan
- Department of Electronic & Computer Engineering, Hong Kong University of Science & Technology (HKUST) , Hong Kong SAR, China
| | - Hyunhyub Ko
- School of Energy and Chemical Engineering, Ulsan National Institute of Science & Technology (UNIST) , Ulsan 44919, Republic of Korea
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23
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Wang F, Qiu Y, Wang BJ, Wang HL, Long YT. Green method to fabricate porous microspheres for ultrasensitive SERS detection using UV light. RSC Adv 2016. [DOI: 10.1039/c6ra17820k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
A green method to fabricate porous polymer microspheres with SERS activity for ultrasensitive SERS detection using UV light.
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Affiliation(s)
- Fei Wang
- State Key Laboratory of Chemical Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Yang Qiu
- State Key Laboratory of Chemical Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Bing-Jie Wang
- State Key Laboratory of Chemical Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Hua-Lin Wang
- State Key Laboratory of Chemical Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Yi-Tao Long
- State Key Laboratory of Bioreactor Engineering
- Department of Chemistry
- East China University of Science and Technology
- Shanghai 200237
- China
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24
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Liu C, Zhang X, Li L, Cui J, Shi YE, Wang L, Zhan J. Silver nanoparticle aggregates on metal fibers for solid phase microextraction–surface enhanced Raman spectroscopy detection of polycyclic aromatic hydrocarbons. Analyst 2015; 140:4668-75. [DOI: 10.1039/c5an00590f] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver–copper fibers loaded with silver nanoparticles are used for SPME–SERS detection of polycyclic aromatic hydrocarbons, which can be further confirmed by GC-MS.
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Affiliation(s)
- Cuicui Liu
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
| | - Xiaoli Zhang
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
| | - Limei Li
- Department of Physics
- Xiamen University
- Xiamen Fujian
- P. R. China
| | - Jingcheng Cui
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
| | - Yu-e Shi
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
| | - Le Wang
- Center of Technology
- Jinan Entry-Exit Inspection and Quarantine Bureau
- Jinan 250014
- China
| | - Jinhua Zhan
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
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25
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Zheng Y, Wang W, Fu Q, Wu M, Shayan K, Wong KM, Singh S, Schober A, Schaaf P, Lei Y. Surface-Enhanced Raman Scattering (SERS) Substrate Based on Large-Area Well-Defined Gold Nanoparticle Arrays with High SERS Uniformity and Stability. Chempluschem 2014. [DOI: 10.1002/cplu.201402154] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Yao X, Chang Y, Zhao Y, Li G, Wang H, Zhang Z, Lan X, Zhong H, Jiang Y. Shape control of Ag nanostructures via a postsynthetic annealing treatment. CrystEngComm 2014. [DOI: 10.1039/c4ce00983e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Lee J, Hua B, Park S, Ha M, Lee Y, Fan Z, Ko H. Tailoring surface plasmons of high-density gold nanostar assemblies on metal films for surface-enhanced Raman spectroscopy. NANOSCALE 2014; 6:616-623. [PMID: 24247586 DOI: 10.1039/c3nr04752k] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Plasmonic systems based on metal nanoparticles on a metal film have generated great interest for surface-enhanced Raman spectroscopy (SERS) chemical sensors. In this study, we describe the fabrication of ultrasensitive SERS substrates based on high-density gold nanostar assemblies on silver films with tailored surface plasmons, where multiple field enhancements from particle-film and interparticle plasmon couplings and lightening rod effects of sharp tips of nanostars contribute to the enormous Raman enhancements. We show that the interplay between interparticle and particle-film plasmon couplings of high-density gold nanostars (GNSs) on metal and dielectric films as a function of interparticle separation can be tailored to provide maximum SERS effects. We observe that the SERS enhancement factor (EF) of GNSs on a metal film as a function of interparticle separation follows a broken power law function, where the EF increases with the interparticle separation for the strong interparticle coupling range below an interparticle separation of ~0.8 times the GNS size, but decreases for the weak interparticle coupling range (for an interparticle separation of >0.8 times the GNS size). Finally, we demonstrate the use of tailored plasmonic substrates as ultrasensitive SERS chemical sensors with an attomole level of detection capability of 2,4-dinitrotoluene, a model compound of nitroaromatic explosives.
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Affiliation(s)
- Jiwon Lee
- School of Energy and Chemical Engineering, Ulsan National Institute Science and Technology (UNIST), Ulsan, Republic of Korea.
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28
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Jiang X, Jiang Z, Xu T, Su S, Zhong Y, Peng F, Su Y, He Y. Surface-Enhanced Raman Scattering-Based Sensing In Vitro: Facile and Label-Free Detection of Apoptotic Cells at the Single-Cell Level. Anal Chem 2013; 85:2809-16. [DOI: 10.1021/ac303337b] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiangxu Jiang
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Ziyun Jiang
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Tingting Xu
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Shao Su
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Yiling Zhong
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Fei Peng
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Yuanyuan Su
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Yao He
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-based Functional Materials & Devices, Soochow University, Suzhou 215123, China
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