1
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Zhang X, Cai X, Yin N, Wang Y, Jiao Y, Liu C. Transferable G/Au Film for Constructing a Variety of SERS Substrates. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:566. [PMID: 38607101 PMCID: PMC11013602 DOI: 10.3390/nano14070566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/07/2024] [Accepted: 03/14/2024] [Indexed: 04/13/2024]
Abstract
Surface-enhanced Raman scattering (SERS), as one of the most powerful analytical methods, undertakes important inspection tasks in various fields. Generally, the performance of an SERS-active substrate relies heavily on its structure, which makes it difficult to integrate multiple-functional detectability on the same substrate. To address this problem, here we designed and constructed a film of graphene/Au nanoparticles (G/Au film) through a simple method, which can be conveniently transferred to different substrates to form various composite SERS substrates subsequently. By means of the combination of the electromagnetic enhancement mechanism (EM) and the chemical enhancement mechanism (CM) of this structure, the film realized good SERS performance experimentally, with the enhancement factor (EF) approaching ca. 1.40 × 105. In addition, the G/Au film had high mechanical strength and had large specific surface area and good biocompatibility that is beneficial for Raman detection. By further transferring the film to an Ag/Si composite substrate and PDMS flexible film, it showed enhanced sensitivity and in situ detectability, respectively, indicating high compatibility and promising prospect in Raman detection.
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Affiliation(s)
- Xinyu Zhang
- School of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, China
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Xin Cai
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Naiqiang Yin
- School of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, China
| | - Yingying Wang
- School of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, China
| | - Yang Jiao
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Chundong Liu
- School of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, China
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
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2
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Li J, Liu H, Chen S, Liang X, Gao Y, Zhao X, Li Z, Zhang C, Lei F, Yu J. Particle-in-Molybdenum Disulfide-Coated Cavity Structure with a Raman Internal Standard for Sensitive Raman Detection of Water Contaminants from Ions to <300 nm Nanoplastics. J Phys Chem Lett 2022; 13:5815-5823. [PMID: 35727012 DOI: 10.1021/acs.jpclett.2c01534] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
To develop a universal and precise detection strategy that can be applied to water contaminants of various sizes, we designed a particle-in-MoS2 coated cavity structure of AAO/MoS2/Ag with a Raman internal standard. This modified particle-in-cavity structure not only successfully integrates both "surface hot spots" and "volume hot spots" via dressing and manipulating the cascaded optical-field mode inside the cavity but also introduces the chemical enhancement and internal standard attribute of MoS2. Because of its unique three-dimensional structure, AAO/MoS2/Ag accurately detects water contaminants of various sizes from ions to nanoplastics (<300 nm) for the first time. This work proposes a novel and universal surface-enhanced Raman scattering strategy for detecting multiple-size water contaminants and demonstrates the potential to build a security line in early warning systems for the prevention of water pollution.
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Affiliation(s)
- Jia Li
- Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan 250014, P. R. China
| | - Huan Liu
- Hefei Ke Liang Yun Instrument and Equipment Company, Ltd., Hefei 230012, P. R. China
| | - Siying Chen
- Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan 250014, P. R. China
| | - Xiu Liang
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, P. R. China
| | - Yuanmei Gao
- Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan 250014, P. R. China
| | - Xiaofei Zhao
- Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan 250014, P. R. China
| | - Zhen Li
- Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan 250014, P. R. China
| | - Chao Zhang
- Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan 250014, P. R. China
| | - Fengcai Lei
- College of Chemistry, Chemical Engineering and Materials Science, Institute of Biomedical Sciences, Shandong Normal University, Jinan 250014, P. R. China
| | - Jing Yu
- Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Electronics, Shandong Normal University, Jinan 250014, P. R. China
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3
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Sun Q, Xu Y, Gao Z, Zhou H, Zhang Q, Xu R, Zhang C, Yao H, Liu M. High-Performance Surface-Enhanced Raman Scattering Substrates Based on the ZnO/Ag Core-Satellite Nanostructures. NANOMATERIALS 2022; 12:nano12081286. [PMID: 35457994 PMCID: PMC9027200 DOI: 10.3390/nano12081286] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/01/2022] [Accepted: 04/08/2022] [Indexed: 12/10/2022]
Abstract
Recently, hierarchical hybrid structures based on the combination of semiconductor micro/nanostructures and noble metal nanoparticles have become a hot research topic in the area of surface-enhanced Raman scattering (SERS). In this work, two core-satellite nanostructures of metal oxide/metal nanoparticles were successfully introduced into SERS substrates, assembling monodispersed small silver nanoparticles (Ag NPs) on large polydispersed ZnO nanospheres (p-ZnO NSs) or monodispersed ZnO nanospheres (m-ZnO NSs) core. The p-ZnO NSs and m-ZnO NSs were synthesized by the pyrolysis method without any template. The Ag NPs were prepared by the thermal evaporation method without any annealing process. An ultralow limit of detection (LOD) of 1 × 10−13 M was achieved in the two core-satellite nanostructures with Rhodamine 6G (R6G) as the probe molecule. Compared with the silicon (Si)/Ag NPs substrate, the two core-satellite nanostructures of Si/p-ZnO NSs/Ag NPs and Si/m-ZnO NSs/Ag NPs substrates have higher enhancement factors (EF) of 2.6 × 108 and 2.5 × 108 for R6G as the probe molecule due to the enhanced electromagnetic field. The two core-satellite nanostructures have great application potential in the low-cost massive production of large-area SERS substrates due to their excellent SERS effect and simple preparation process without any template.
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Affiliation(s)
- Qianqian Sun
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
- Correspondence: (Q.S.); (H.Y.); (M.L.)
| | - Yujie Xu
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Zhicheng Gao
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Hang Zhou
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Qian Zhang
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Ruichong Xu
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Chao Zhang
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Haizi Yao
- Key Laboratory of Smart Lighting in Henan Province, School of Energy Engineering, Huanghuai University, Zhumadian 463000, China
- Correspondence: (Q.S.); (H.Y.); (M.L.)
| | - Mei Liu
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
- Correspondence: (Q.S.); (H.Y.); (M.L.)
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4
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Xu J, Li J, Guo G, Zhao X, Li Z, Xu S, Li C, Man B, Yu J, Zhang C. Facilely Flexible Imprinted Hemispherical Cavity Array for Effective Plasmonic Coupling as SERS Substrate. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3196. [PMID: 34947549 PMCID: PMC8705896 DOI: 10.3390/nano11123196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 11/25/2022]
Abstract
The focusing field effect excited by the cavity mode has a positive coupling effect with the metal localized surface plasmon resonance (LSPR) effect, which can stimulate a stronger local electromagnetic field. Therefore, we combined the self-organizing process for component and array manufacturing with imprinting technology to construct a cheap and reproducible flexible polyvinyl alcohol (PVA) nanocavity array decorating with the silver nanoparticles (Ag NPs). The distribution of the local electromagnetic field was simulated theoretically, and the surface-enhanced Raman scattering (SERS) performance of the substrate was evaluated experimentally. The substrate shows excellent mechanical stability in bending experiments. It was proved theoretically and experimentally that the substrate still provides a stable signal when the excited light is incident from different angles. This flexible substrate can achieve low-cost, highly sensitive, uniform and conducive SERS detection, especially in situ detection, which shows a promising application prospect in food safety and biomedicine.
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Affiliation(s)
- Jihua Xu
- Collaborative Innovation Center of Light Manipulations and Applications, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (J.X.); (J.L.); (G.G.); (X.Z.); (Z.L.); (B.M.)
| | - Jinmeng Li
- Collaborative Innovation Center of Light Manipulations and Applications, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (J.X.); (J.L.); (G.G.); (X.Z.); (Z.L.); (B.M.)
| | - Guangxu Guo
- Collaborative Innovation Center of Light Manipulations and Applications, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (J.X.); (J.L.); (G.G.); (X.Z.); (Z.L.); (B.M.)
| | - Xiaofei Zhao
- Collaborative Innovation Center of Light Manipulations and Applications, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (J.X.); (J.L.); (G.G.); (X.Z.); (Z.L.); (B.M.)
| | - Zhen Li
- Collaborative Innovation Center of Light Manipulations and Applications, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (J.X.); (J.L.); (G.G.); (X.Z.); (Z.L.); (B.M.)
| | - Shicai Xu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China; (S.X.); (C.L.)
| | - Chonghui Li
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China; (S.X.); (C.L.)
| | - Baoyuan Man
- Collaborative Innovation Center of Light Manipulations and Applications, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (J.X.); (J.L.); (G.G.); (X.Z.); (Z.L.); (B.M.)
| | - Jing Yu
- Collaborative Innovation Center of Light Manipulations and Applications, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (J.X.); (J.L.); (G.G.); (X.Z.); (Z.L.); (B.M.)
| | - Chao Zhang
- Collaborative Innovation Center of Light Manipulations and Applications, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (J.X.); (J.L.); (G.G.); (X.Z.); (Z.L.); (B.M.)
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5
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Liu C, Lei F, Wei Y, Li Z, Zhang C, Peng Q, Man B, Yu J. Preparation of a superhydrophobic AgNP/GF substrate and its SERS application in a complex detection environment. OPTICS EXPRESS 2021; 29:34085-34096. [PMID: 34809206 DOI: 10.1364/oe.441606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is widely considered to be a fingerprint spectrum that can realize molecular identification, and it continues to receive a lot of attention due to its high sensitivity and powerful qualitative analysis capabilities. In recent years, there has been a lot of work and reports on super-sensitive SERS substrates, but often the enhanced ability of the substrate is also effective for impurities and irrelevant molecules. Therefore, a problem that still remains to be solved is how to perform effective trace detection of specific substances in a complex detection environment. Herein, a superhydrophobic Ag nanoparticle/glass microfibre filter (AgNP/GF) substrate was designed to realize the Raman detection of complex multiphase solutions. The hydrophobic three-dimensional net-like structure provides efficient Raman enhancement, making the substrate have extremely high detection limits for dye molecules and even achieving specific detection of the hexane phase component (thiram molecule) in a multiphase solution.
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6
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Detection of benzylpenicillin sodium and ampicillin residue based on flower-like silver nanostructures using surface-enhanced Raman spectroscopy. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04574-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Wei H, Peng Z, Yang C, Tian Y, Sun L, Wang G, Liu M. Three-Dimensional Au/Ag Nanoparticle/Crossed Carbon Nanotube SERS Substrate for the Detection of Mixed Toxic Molecules. NANOMATERIALS 2021; 11:nano11082026. [PMID: 34443857 PMCID: PMC8401542 DOI: 10.3390/nano11082026] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 11/16/2022]
Abstract
Research on engineering "hotspots" in the field of surface-enhanced Raman scattering (SERS) is at the forefront of contributing to the best sensing indicators. Currently, there is still an urgent need to design a high-strength and large-scale electric field distribution method in order to obtain an ideal SERS sensor. Here, we designed a three-dimensional (3D) Au/Ag nanoparticle (NP)/crossed carbon nanotube film SERS substrate. The proposed structure formed by the simple preparation process can perfectly coordinate the interaction between the SERS substrates, lasers, and molecules. The denser "hotspots" can be induced and then distributed in holes enclosed by Au/AgNPs and the gaps between them. This process was verified by numerical simulations. The experimental results show that the proposed SERS substrate possesses an excellent sensitivity of 10-12 M (rhodamine 6G (R6G)), an enhancement factor of 1.60 × 109, and a good signal reproducibility (the relative standard deviation is ~6.03%). We further use a Au/AgNP/crossed CNT substrate to detect complex solutions composed of toxic molecules, which shows that our proposed SERS substrate has a wide range of application potentials, especially in food safety.
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Affiliation(s)
- Haonan Wei
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (H.W.); (C.Y.); (Y.T.)
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China;
| | - Zhisheng Peng
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China;
| | - Cheng Yang
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (H.W.); (C.Y.); (Y.T.)
| | - Yuan Tian
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (H.W.); (C.Y.); (Y.T.)
| | - Lianfeng Sun
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China;
- Correspondence: (L.S.); (G.W.); (M.L.)
| | - Gongtang Wang
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (H.W.); (C.Y.); (Y.T.)
- Correspondence: (L.S.); (G.W.); (M.L.)
| | - Mei Liu
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, China; (H.W.); (C.Y.); (Y.T.)
- Correspondence: (L.S.); (G.W.); (M.L.)
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8
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Li T, Yu Z, Wang Z, Zhu Y, Zhang J. Optimized Tapered Fiber Decorated by Ag Nanoparticles for Raman Measurement with High Sensitivity. SENSORS 2021; 21:s21072300. [PMID: 33806065 PMCID: PMC8036424 DOI: 10.3390/s21072300] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/15/2021] [Accepted: 03/23/2021] [Indexed: 11/18/2022]
Abstract
A tapered fiber decorated by Ag nanoparticles is prepared as a surface-enhanced Raman scattering (SERS) substrate. There are two key parameters during the preparation process, the fiber cone angle and the density of decorated AgNPs on the fiber tip surface. Their theoretical analysis on the forming mechanism and the optimization process is studied in detail. The tapered fibers with angles from 0.5 to 30° are successfully prepared, with a chemical method in a small tube using a bending interface. AgNPs with different densities are decorated on the surface of the tapered fibers with an electrostatic adsorption method. The optimized tapered fiber SERS probe with an angle of 12° and AgNPs density of 26.67% provides the detection of Rhodamine 6G (R6G) with 10−10 mol/L.
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Affiliation(s)
| | | | | | | | - Jie Zhang
- Correspondence: ; Tel.: +86-135-9413-5451
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9
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Promotional effect of surface plasmon resonance on direct formation of hydrogen peroxide from H2 and O2 over Pd/Graphene-Au nanorod catalytic system. J Catal 2021. [DOI: 10.1016/j.jcat.2020.05.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Liu L, Hou S, Zhao X, Liu C, Li Z, Li C, Xu S, Wang G, Yu J, Zhang C, Man B. Role of Graphene in Constructing Multilayer Plasmonic SERS Substrate with Graphene/AgNPs as Chemical Mechanism-Electromagnetic Mechanism Unit. NANOMATERIALS 2020; 10:nano10122371. [PMID: 33260554 PMCID: PMC7760367 DOI: 10.3390/nano10122371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/27/2020] [Accepted: 11/27/2020] [Indexed: 12/29/2022]
Abstract
Graphene–metal substrates have received widespread attention due to their superior surface-enhanced Raman scattering (SERS) performance. The strong coupling between graphene and metal particles can greatly improve the SERS performance and thus broaden the application fields. The way in which to make full use of the synergistic effect of the hybrid is still a key issue to improve SERS activity and stability. Here, we used graphene as a chemical mechanism (CM) layer and Ag nanoparticles (AgNPs) as an electromagnetic mechanism (EM) layer, forming a CM–EM unit and constructing a multi-layer hybrid structure as a SERS substrate. The improved SERS performance of the multilayer nanostructure was investigated experimentally and in theory. We demonstrated that the Raman enhancement effect increased as the number of CM–EM units increased, remaining nearly unchanged when the CM–EM unit was more than four. The limit of detection was down to 10−14 M for rhodamine 6G (R6G) and 10−12 M for crystal violet (CV), which confirmed the ultrahigh sensitivity of the multilayer SERS substrate. Furthermore, we investigated the reproducibility and thermal stability of the proposed multilayer SERS substrate. On the basis of these promising results, the development of new materials and novel methods for high performance sensing and biosensing applications will be promoted.
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Affiliation(s)
- Lu Liu
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Shuting Hou
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Xiaofei Zhao
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Chundong Liu
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Zhen Li
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Chonghui Li
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China;
- Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
| | - Shicai Xu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China;
| | - Guilin Wang
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Jing Yu
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Chao Zhang
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
- Correspondence: (C.Z.); (B.M.)
| | - Baoyuan Man
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
- Correspondence: (C.Z.); (B.M.)
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11
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Yu J, Yang M, Li Z, Liu C, Wei Y, Zhang C, Man B, Lei F. Hierarchical Particle-In-Quasicavity Architecture for Ultratrace In Situ Raman Sensing and Its Application in Real-Time Monitoring of Toxic Pollutants. Anal Chem 2020; 92:14754-14761. [DOI: 10.1021/acs.analchem.0c03375] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jing Yu
- College of Chemistry, Chemical Engineering and Materials Science, Institute of Biomedical Sciences, Shandong Normal University, Jinan 250014, P.R. China
- School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250014, P.R. China
| | - Maosen Yang
- School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250014, P.R. China
| | - Zhen Li
- School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250014, P.R. China
| | - Chundong Liu
- School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250014, P.R. China
| | - Yisheng Wei
- School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250014, P.R. China
| | - Chao Zhang
- School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250014, P.R. China
| | - Baoyuan Man
- School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250014, P.R. China
| | - Fengcai Lei
- College of Chemistry, Chemical Engineering and Materials Science, Institute of Biomedical Sciences, Shandong Normal University, Jinan 250014, P.R. China
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12
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Hou L, Shao M, Li Z, Zhao X, Liu A, Zhang C, Xiu X, Yu J, Li Z. Elevating the density and intensity of hot spots by repeated annealing for high-efficiency SERS. OPTICS EXPRESS 2020; 28:29357-29367. [PMID: 33114837 DOI: 10.1364/oe.403940] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
The simultaneous output of highly sensitive and reproducible signals for surface-enhanced Raman spectroscopy (SERS) technology remains difficult. Here, we propose a two-dimensional (2D) composite structure using the repeated annealing method with MoS2 film as the molecular adsorbent. This method provides enlarged Au nanoparticle (NP) density with much smaller gap spacing, and thus dramatically increases the density and intensity of hot spots. The MoS2 films distribute among the hot spots, which is beneficial for uniform molecular adsorption, and further increases the sensitivity of the SERS substrate. Three kinds of molecules were used to evaluate the SERS substrate. Ultra-sensitive, highly repetitive, and stable SERS signals were obtained, which would promote the application process of SERS technology in quantitative analysis and detection.
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13
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Liu R, Jiang L, Yu Z, Chen Y, Xu R, Jin S. Flexible SERS platform based on Ti 3C 2T x-modified filter paper: preparation and SERS application. APPLIED OPTICS 2020; 59:7846-7852. [PMID: 32976456 DOI: 10.1364/ao.398454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
A novel, simple, and inexpensive flexible surface-enhanced Raman-scattering (SERS) platform based on common laboratory filter paper modified with Ti3C2Tx flakes was reported. Ti3C2Tx synthesized from a Ti3AlC2 phase with a mixture of HCl and LiF and Ti3C2Tx nanosheets were characterized by the TEM, XRD, UV-Vis spectrum, and Raman spectrum. Paper-based substrate has been proven to sample on rough and irregular surfaces. Thus, Ti3C2Tx was further manufactured as paper substrate by the immersion method to transfer nanosheets to filter paper. SERS activity of prepared substrate was demonstrated using R6G by the same filter paper modified with and without Ti3C2Tx, and various concentrations of R6G were tested to prove the sensitivity of the substrates. Further detection of CV and MG certified the universality of paper substrate based on Ti3C2Tx nanosheets for detection of organic pollutants. The uniformity and stability were proved by CV and R6G molecules. This SERS platform combines the advantages of 2D material and flexible paper scaffolds, resulting in a highly sensitive, cost-efficient, and easy-to-manufacture large-scale flexible substrate and is expected to be used in practice.
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14
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Huang J, Wen Y, Li J, Li Y, Gou T, Ma Y, Qu Y, Zhang Z, Ren W, Zhang Z, Liu T, Sun R. Superhydrophobic-Superhydrophilic Hybrid Surface with Highly Ordered Tip-Capped Nanopore Arrays for Surface-Enhanced Raman Scattering Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37499-37505. [PMID: 32706571 DOI: 10.1021/acsami.0c12127] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The designed superhydrophobic-superhydrophilic hybrid surface (SSHS) with highly ordered tip-capped nanopore arrays can be used as an intelligent and fast platform to realize different analyte solutions with different concentrations to be detected at the same time by surface-enhanced Raman spectroscopy. This surface is fabricated in a large area by a facile and low-cost method of programmed multistep anodization of aluminum and pore widening process followed by selective chemical modification. The highly ordered tip-capped nanopore arrays can induce the highly sensitive and reproducible Raman signal, whose enhanced factor for rhodamine 6G (R6G) at 1358 cm-1 is 4.46 × 106. The superhydrophobic-superhydrophilic hybrid property can realize the homogeneous distribution of the concentrated analyte in a droplet at the fixed place, which can avoid the diffusion-limit problem and further enhance the Raman signal. Surface-enhanced Raman spectroscopy of dried droplets with different concentrations of R6G or thiram is tested on SSHS, which show good reproducibility. The detection limits of R6G and thiram on SSHS are 10-10 and 10-7 M in 50 μL droplets, respectively. Due to the industrial compatibility of the fabrication technique, this smart surface has the potential to evolve into a general platform to develop various advanced chemical and biological sensors.
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Affiliation(s)
- Jingbo Huang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Yihao Wen
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Juan Li
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Ying Li
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Tong Gou
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Yingjun Ma
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
- School of Science, Ningxia Medical University, Yinchuan 750004, P. R. China
| | - Yu Qu
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Zhongyue Zhang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Wei Ren
- School of Science, Xi'an University of Posts & Telecommunication, Xi'an 710119, P. R. China
| | - Zhiying Zhang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Ting Liu
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Runguang Sun
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
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15
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Signal optimized rough silver nanoparticle for rapid SERS sensing of pesticide residues in tea. Food Chem 2020; 338:127796. [PMID: 32805691 DOI: 10.1016/j.foodchem.2020.127796] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/24/2020] [Accepted: 08/06/2020] [Indexed: 01/19/2023]
Abstract
Trace detection of toxic chemicals in foodstuffs is of great concern in recent years. Surface-enhanced Raman scattering (SERS) has drawn significant attention in the monitoring of food safety due to its high sensitivity. This study synthesized signal optimized flower-like silver nanoparticle-(AgNP) with EF at 25 °C of 1.39 × 106 to extend the SERS application for pesticide sensing in foodstuffs. The synthesized AgNP was deployed as SERS based sensing platform to detect methomyl, acetamiprid-(AC) and 2,4-dichlorophenoxyacetic acid-(2,4-D) residue levels in green tea via solid-phase extraction. A linear correlation was twigged between the SERS signal and the concentration for methomyl, AC and 2,4-D with regression coefficient of 0.9974, 0.9956 and 0.9982 and limit of detection of 5.58 × 10-4, 1.88 × 10-4 and 4.72 × 10-3 µg/mL, respectively; the RSD value < 5% was recorded for accuracy and precision analysis suggesting that proposed method could be deployed for the monitoring of methomyl, AC and 2,4-D residue levels in green tea.
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16
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Wang G, Wei H, Tian Y, Wu M, Sun Q, Peng Z, Sun L, Liu M. Twin-ZnSe nanowires as surface enhanced Raman scattering substrate with significant enhancement factor upon defect. OPTICS EXPRESS 2020; 28:18843-18858. [PMID: 32672175 DOI: 10.1364/oe.388439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/26/2020] [Indexed: 05/26/2023]
Abstract
Semiconductor-based surface enhanced Raman scattering (SERS) substrate design has attracted much interest due to the excellent photoelectronic and biochemical properties. The structural change caused by twin in semiconductor will have an influence on improving the Raman signals enhancement based on the chemical mechanism (CM). Here, we demonstrated the twin in semiconductor ZnSe nanowires as an ultrasensitive CM-based SERS platform. The SERS signals of the rhodamine 6G (R6G) and crystal violet (CV) molecules adsorbed on twin-ZnSe nanowires could be easily detected even with an ultralow concentration of 10-11 M and 10-8 M, respectively, and the corresponding enhancement factor (EF) were up to 6.12 × 107 and 3.02 × 105, respectively. In addition, the charge transfer (CT) between the twin-ZnSe nanowires and R6G molecule has been demonstrated theoretically with first-principles calculations based on density-functional theory (DFT). These results demonstrated the proposed ZnSe nanowires with twin as SERS substrate has a broader application in the field of biochemical sensing.
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17
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Gushiken N, Paganoto GT, Temperini MLA, Teixeira FS, Salvadori MC. Substrate for Surface-Enhanced Raman Spectroscopy Formed by Gold Nanoparticles Buried in Poly(methyl methacrylate). ACS OMEGA 2020; 5:10366-10373. [PMID: 32426593 PMCID: PMC7226853 DOI: 10.1021/acsomega.0c00133] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 04/21/2020] [Indexed: 06/11/2023]
Abstract
In this work, we present some properties and use of a nanocomposite formed by gold nanoparticles (NPs) into poly(methyl methacrylate) (PMMA) and its application as substrates for surface-enhanced Raman spectroscopy (SERS). The nanocomposite was formed using low-energy (49 eV) ion implantation of gold in PMMA using a cathodic arc plasma gun. The gold NPs are formed spontaneously from the implanted ions and they remain isolated from each other by the polymer medium surrounding them, ensuring a spacing between the NPs of less than 10 nm (hot spot places). The NPs form below the surface, protected from the environment, guaranteeing the stability of the composite layer. Moreover, here, we present an interesting approach to concentrate analyte molecules closer to the metal surface using the swelling effect in PMMA. Using absorption of the analyte, the molecules stay in the gaps between NPs, which is a good solution for one of the biggest challenges in SERS, that is, to guide molecules to the hot spot places.
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Affiliation(s)
- Natalia
K. Gushiken
- Polytechnic
School, University of São Paulo, Avenida Professor Luciano Gualberto,
Travessa R-158, CEP 05508-900 São Paulo, São Paulo, Brazil
| | - Giordano T. Paganoto
- Institute
of Chemistry, University of São Paulo, Avenida Professor Lineu Prestes,
748, CEP 05508-000 São Paulo, São Paulo, Brazil
| | - Marcia L. A. Temperini
- Institute
of Chemistry, University of São Paulo, Avenida Professor Lineu Prestes,
748, CEP 05508-000 São Paulo, São Paulo, Brazil
| | - Fernanda S. Teixeira
- Institute
of Physics, University of São Paulo, C.P. 66318, CEP 05315-970 São Paulo, São Paulo, Brazil
| | - Maria Cecilia Salvadori
- Polytechnic
School, University of São Paulo, Avenida Professor Luciano Gualberto,
Travessa R-158, CEP 05508-900 São Paulo, São Paulo, Brazil
- Institute
of Physics, University of São Paulo, C.P. 66318, CEP 05315-970 São Paulo, São Paulo, Brazil
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18
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Liu C, Hu J, Biswas S, Zhu F, Zhan J, Wang G, Tung CH, Wang Y. Surface-Enhanced Raman Scattering of Phenols and Catechols by a Molecular Analogue of Titanium Dioxide. Anal Chem 2020; 92:5929-5936. [PMID: 32250109 DOI: 10.1021/acs.analchem.0c00047] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) of semiconducting TiO2 was used for studying binding modes and surface reactions of molecules bound at the interface but is generally limited by low signal intensity and lack of authentic structural information. Here, we report a representative titanium-oxide cluster (TOC), i.e., Ti17O24(OiC3H7)20 (Ti17), combines the benefits from both precise structures and intense SERS signals by providing a titania surface. According to the single-crystal X-ray diffraction analysis, phenols and catechols are vertically attached via σ-bonds to the certain sites of Ti17. Ti17 brings about much more intense Raman signals than the reference TiO2 NPs, leading to 10-5-10-6 M analyte detection (enhancement factors are 103-105). The contributions of focusing effect, CHEM effect and resonance mechanism, all of which are found responsible for the higher SERS activity of Ti17 than the reference TiO2 NPs, in the SERS by Ti17 are quantitatively analyzed. This study suggests SERS by TOCs may be promising for detection purposes and structural studies of environmentally and catalytically relevant molecules with fewer assumptions regarding molecular structures or binding mechanisms.
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Affiliation(s)
- Caiyun Liu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Junyi Hu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Subharanjan Biswas
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Feng Zhu
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Jinhua Zhan
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Guo Wang
- Department of Chemistry, Capital Normal University, West Third Ring North Road 105, Beijing 100048, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
| | - Yifeng Wang
- Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, Jinan 250100, China
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19
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Ridha NJ, Alosfur FKM, Jumali MHH, Radiman S. Effect of Al thickness on the structural and ethanol vapor sensing performance of ZnO porous nanostructures prepared by microwave-assisted hydrothermal method. NANOTECHNOLOGY 2020; 31:145502. [PMID: 31842006 DOI: 10.1088/1361-6528/ab6235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Highly porous ZnO nanoflakes were successfully prepared using a microwave-assisted hydrothermal method. The presence of aluminum changes the environment of the preparation reaction, which controlled the crystallographic orientation. The unique morphology and properties of ZnO nanoflakes may be due to the effect of microwave irradiation and the ambient condition. The approach is very simple and there is rapid growth of around 3 μm ZnO within 30 min. The mechanism of the construction of unique ZnO nanoflake growth using the present approach is proposed. Hence, the prospective performance of ethanol vapor sensing for the rapid growth of ZnO porous nanostructures was investigated.
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Affiliation(s)
- Noor J Ridha
- Department of Physics, College of Science, University of Kerbala, Iraq
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20
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Hashim HS, Fen YW, Sheh Omar NA, Abdullah J, Daniyal WMEMM, Saleviter S. Detection of phenol by incorporation of gold modified-enzyme based graphene oxide thin film with surface plasmon resonance technique. OPTICS EXPRESS 2020; 28:9738-9752. [PMID: 32225575 DOI: 10.1364/oe.387027] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 02/01/2020] [Indexed: 06/10/2023]
Abstract
In this study, the incorporation between gold modified-tyrosinase (Tyr) enzyme based graphene oxide (GO) thin film with surface plasmon resonance (SPR) technique has been developed for the detection of phenol. SPR signal for the thin film contacted with phenol solution was monitored using SPR technique. From the SPR curve, sensitivity, full width at half maximum (FWHM), detection accuracy (DA) and signal-to-noise ratio (SNR) have been analyzed. The sensor produces a linear response for phenol up to 100 µM with sensitivity of 0.00193° µM-1. Next, it can be observed that deionized water has the lowest FWHM, with a value of 1.87° and also the highest value of DA. Besides, the SNR of the SPR signal was proportional to the phenol concentrations. Furthermore, the surface morphology of the modified thin film after exposed with phenol solution observed using atomic force microscopy showed a lot of sharp peaks compared to the image before in contact with phenol proved the interaction between the thin film and phenol.
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21
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Electric Field-Modulated Surface Enhanced Raman Spectroscopy by PVDF/Ag Hybrid. Sci Rep 2020; 10:5269. [PMID: 32210311 PMCID: PMC7093541 DOI: 10.1038/s41598-020-62251-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 03/11/2020] [Indexed: 11/23/2022] Open
Abstract
Electrically modulated surface enhanced Raman scattering (E-SERS) can be able to regulate the plasmon resonance peak of metal nanostructures, further improve the detection sensitivity of the SERS substrate. However, the E-SERS substrates require auxiliary equipment to provide the electrical potential, and most of them are non-flexible structure, which limits the application of E-SERS in the portable, in-situ and fast detection area. Here, we developed an electric field-modulated SERS substrate based on the piezoelectric effect by combining the PVDF (piezoelectric-modulated layer) and Ag nanowires (AgNWs) (SERS active layer) and investigated the SERS activity in experiment and theory. The enhanced electric field and the tunable plasmon resonance induced by the piezoelectric effect provide the additional enhancement for the SERS signal. Furthermore, we fabricated a SERS active ring with a piezoelectric field-modulated substrate and achieved the in-situ detection of glucose with a non-invasive method. This work provided innovation for the E-SERS and could greatly promote the development of the in-situ, wearable and intelligent sensors.
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22
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Microdroplet-captured tapes for rapid sampling and SERS detection of food contaminants. Biosens Bioelectron 2020; 152:112013. [DOI: 10.1016/j.bios.2020.112013] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 12/31/2019] [Accepted: 01/07/2020] [Indexed: 12/31/2022]
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23
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Hassan H, Munshid MA, Al-Janabi A. Tellurium-nanorod-based saturable absorber for an ultrafast passive mode-locked erbium-doped fiber laser. APPLIED OPTICS 2020; 59:1230-1236. [PMID: 32225269 DOI: 10.1364/ao.383566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
In this paper, we propose and demonstrate ultrafast Te nanorods as a saturable absorber (SA) for producing mode locking from an erbium-doped fiber laser for the first time, to the best of our knowledge. The Te nanorods were fabricated by a simple green chemical method with energy conservation and without a purification process. The morphology and structure measurements confirm uniform Te nanorods with a constant aspect ratio. The synthesized SA has a saturation intensity and modulation depth of $25.44\, {\rm MW/cm}^{2} $25.44MW/cm2 and 4%, respectively. By integrating the proposed SA into an erbium-doped all fiber-based ring cavity, the mode-locked fiber laser was readily generated. The conventional soliton pulses of ${3.56}\;{\rm ps}$3.56ps pulse width were obtained at 1566.7 nm central wavelength and a pulse repetition rate of 1.87 MHz. The results show that the moderate saturable-absorption characteristics of Te nanorods have superior performance in the ultrafast optics field, which is eligible in many applications, such as optical communications.
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24
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Song D, Yu F, Chen S, Chen Y, He Q, Zhang Z, Zhang J, Wang S. Raman spectroscopy combined with multivariate analysis to study the biochemical mechanism of lung cancer microwave ablation. BIOMEDICAL OPTICS EXPRESS 2020; 11:1061-1072. [PMID: 32133237 PMCID: PMC7041477 DOI: 10.1364/boe.383869] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/14/2020] [Accepted: 01/15/2020] [Indexed: 05/24/2023]
Abstract
Lung cancer is the leading cause of death in cancer patients, and microwave ablation (MWA) has been extensively used in clinical treatment. In this study, we characterized the spectra of MWA-treated and untreated lung squamous cell carcinoma (LSCC) tissues, as well as healthy lung tissue, and conducted a preliminary analysis of spectral variations associated with MWA treatment. The results of characteristic spectral analysis of different types of tissues indicated that MWA treatment induces an increase in the content of nucleic acids, proteins, and lipid components in lung cancer tissues. The discriminant model based on the principal component analysis - linear discriminant analysis (PCA-LDA) algorithm together with leave-one-out cross validation (LOOCV) method yield the sensitivities of 90%, 80%, and 96%, and specificities of 86.2%, 93.8%, and 100% among untreated and MWA-treated cancerous tissue, and healthy lung tissue, respectively. These results indicate that Raman spectroscopy combined with multivariate analysis techniques can be used to explore the biochemical response mechanism of cancerous tissue to MWA therapy.
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Affiliation(s)
- Dongliang Song
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710069, China
- Department of physics, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Fan Yu
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Shilin Chen
- Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Jiangsu Cancer Hospital, Nanjing, Jiangsu, 210009, China
| | - Yishen Chen
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Qingli He
- Department of physics, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Zhe Zhang
- Department of Pathology, Nanjing Medical University Affiliated Cancer Hospital, Jiangsu Cancer Hospital, Nanjing, Jiangsu, 210009, China
| | - Jingyuan Zhang
- Department of Pathology, Nanjing Medical University Affiliated Cancer Hospital, Jiangsu Cancer Hospital, Nanjing, Jiangsu, 210009, China
| | - Shuang Wang
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710069, China
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25
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Nisar MS, Kang S, Zhao X. Photothermal Effect in Plasmonic Nanotip for LSPR Sensing. SENSORS 2020; 20:s20030671. [PMID: 31991744 PMCID: PMC7039235 DOI: 10.3390/s20030671] [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: 12/24/2019] [Revised: 01/15/2020] [Accepted: 01/21/2020] [Indexed: 01/13/2023]
Abstract
The influence of heat generation on the conventional process of LSPR based sensing has not been explored thus far. Therefore, a need exists to draw attention toward the heat generation issue during LSPR sensing as it may affect the refractive index of the analyte, leading to incorrect sensory conclusions. This manuscript addresses the connection between the photo-thermal effect and LSPR. We numerically analyzed the heat performance of a gold cladded nanotip. The numerical results predict a change in the micro-scale temperature in the microenvironment near the nanotip. These numerical results predict a temperature increase of more than 20 K near the apex of the nanotip, which depends on numerous factors including the input optical power and the diameter of the fiber. We analytically show that this change in the temperature influences a change in the refractive index of the microenvironment in the vicinity of the nanotip. In accordance with our numerical and analytical findings, we experimentally show an LSPR shift induced by a change in the input power of the source. We believe that our work will bring the importance of temperature dependence in nanotip based LSPR sensing to the fore.
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Affiliation(s)
- Muhammad Shemyal Nisar
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China; (M.S.N.); (S.K.)
- Southeast University-Shenzhen Research Institute, Shenzhen 518000, China
| | - Siyu Kang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China; (M.S.N.); (S.K.)
- Southeast University-Shenzhen Research Institute, Shenzhen 518000, China
| | - Xiangwei Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China; (M.S.N.); (S.K.)
- Southeast University-Shenzhen Research Institute, Shenzhen 518000, China
- Correspondence:
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26
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Zhang J, Wang C, Wang M, Xu T. In situ synthesis of silver nanoparticles on periodic supports as highly active and flexible surface-enhanced Raman spectroscopy substrates. APPLIED OPTICS 2020; 59:662-668. [PMID: 32225192 DOI: 10.1364/ao.378734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
With regard to surface-enhanced Raman spectroscopy (SERS), the preparation of substrates with high homogeneity and low cost remains a challenge. In this paper, cheap commercial DVD-R plates were adopted as supports, whose 3D periodic structure was transferred onto the surface of flexible polydimethylsiloxane (PDMS) easily. Then, silver nanoparticles were grown both on DVD and PDMS substrates by the in situ reduction method, and the SERS performances of these two substrates were investigated. The results confirmed that the PDMS-based substrate exhibited better enhancement performance and higher uniformity (RSD=4.16%). In addition, due to the flexibility and transparency of PDMS, it is not restricted by the surface shape of the object when applied in in situ detection. This low-cost, simple method will be widely used in the in situ detection of surfaces of objects of any shape.
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27
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Xia J, Lu D, Liu Y, Ran M, Shang J, Bi L, Cao X. Prediction of premature rupture of membranes via simultaneous detection of procalcitonin and interleukin-6 by a SERS-based immunochromatographic assay. NEW J CHEM 2020. [DOI: 10.1039/d0nj03799k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The rapid and sensitive detection strip with two test lines was developed based on SERS for the early screening of PROM.
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Affiliation(s)
- Ji Xia
- The First Clinical College
- Dalian Medical University
- Dalian
- P. R. China
- Department of Obstetrics and Gynecology
| | - Dan Lu
- Institute of Translational Medicine
- Medical College
- Yangzhou University
- Yangzhou
- P. R. China
| | - Yifan Liu
- The First Clinical College
- Dalian Medical University
- Dalian
- P. R. China
- Department of Obstetrics and Gynecology
| | - Menglin Ran
- The First Clinical College
- Dalian Medical University
- Dalian
- P. R. China
- Department of Obstetrics and Gynecology
| | - Jiaowei Shang
- The First Clinical College
- Dalian Medical University
- Dalian
- P. R. China
| | - Liyan Bi
- Transformative Otology and Neuroscience Center
- College of Special Education
- Binzhou Medical University
- Yantai 264003
- P. R. China
| | - Xiaowei Cao
- Institute of Translational Medicine
- Medical College
- Yangzhou University
- Yangzhou
- P. R. China
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28
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Demirtaş Ö, Doğanay D, Öztürk İM, Ünalan HE, Bek A. Facile preparation of nanoparticle based SERS substrates for trace molecule detection. Phys Chem Chem Phys 2020; 22:21139-21146. [PMID: 32926013 DOI: 10.1039/d0cp01866j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we demonstrate that a polished Si wafer surface can be converted to possess strong surface-enhanced Raman scattering (SERS) activity by spray coating of polyol synthesized colloidal silver nanoparticles (AgNPs) at as low as 1% surface coverage. The SERS activity assays of substrate surfaces prepared with different production procedures (spray and spin coating) at different surface coverages are realized using population statistics. The resulting Raman enhancement factors (EFs) are discussed with the help of distance-dependent electromagnetic simulations for single particles and dimers. Statistics on the SERS effect and the corresponding EF calculations show that polyol synthesized AgNPs exhibit extremely strong SERS activity with EFs up to 108 at as low as 1% surface coverage. We discuss in this work that this is possible due to the distinct properties of polyol synthesized AgNPs such as atomically flat surfaces, sharp edges and corners naturally occurring in this synthesis method, which favor strong plasmonic activity. The method can be generalized to convert virtually any surface into a SERS substrate.
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Affiliation(s)
- Özge Demirtaş
- Micro and Nanotechnology Program, Middle East Technical University, Ankara 06800, Turkey.
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Zhang X, Zhang H, Yan S, Zeng Z, Huang A, Liu A, Yuan Y, Huang Y. Organic Molecule Detection Based on SERS in Microfluidics. Sci Rep 2019; 9:17634. [PMID: 31776350 PMCID: PMC6881339 DOI: 10.1038/s41598-019-53478-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 10/24/2019] [Indexed: 11/09/2022] Open
Abstract
Sensitive in situ detection of organic molecules is highly demanded in environmental monitoring. In this work, the surface enhanced Raman spectroscopy (SERS) is adopted in microfluidics to detect the organic molecules with high accuracy and high sensitivity. Here the SERS substrate in microchannel consists of Ag nanoparticles synthesized by chemical reduction. The data indicates the fabrication conditions have great influence on the sizes and distributions of Ag nanoparticles, which play an important role on the SERS enhancement. This result is further confirmed by the simulation of electromagnetic field distributions based on finite difference time domain (FDTD) method. Furthermore, the SERS spectra of organic molecule (methylene blue) obtained in this plasmonic microfluidic system exhibit good reproducibility with high sensitivity. By a combination of SERS and microfluidics, our work not only explores the research field of plasmonics but also has broad application prospects in environmental monitoring.
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Affiliation(s)
- Xin Zhang
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing, 400044, China.,Chongqing Environment & Sanitation Group Co., LTO, Chongqing, 401121, China.,Chongqing Industry Polytechnic College, Chongqing, 400044, China
| | - Haiyan Zhang
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing, 400044, China
| | - Sheng Yan
- Department of Chemistry, University of Tokyo, Tokyo, Japan
| | - Zugang Zeng
- Chongqing Environment & Sanitation Group Co., LTO, Chongqing, 401121, China
| | - Anshou Huang
- Chongqing Environment & Sanitation Group Co., LTO, Chongqing, 401121, China
| | - Anping Liu
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing, 400044, China
| | - Yuan Yuan
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing, 400044, China.
| | - Yingzhou Huang
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing, 400044, China.
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Xu F, Ma F, Ding Z, Xiao L, Zhang X, Lu Q, Lu G, Kaplan DL. SERS Substrate with Silk Nanoribbons as Interlayer Template. ACS APPLIED MATERIALS & INTERFACES 2019; 11:42896-42903. [PMID: 31682400 DOI: 10.1021/acsami.9b13543] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The formation of hot spots is an effective approach to improve the performance of surface-enhanced Raman scattering (SERS). Silk nanoribbons (SNRs), with a height of about 1-2 nm, and Au nanoparticles (AuNPs) were assembled by electrostatic interactions to introduce sandwich hot spot structures. These sandwich structures were optimized by tuning the ratio of SNRs and AuNPs, resulting in strong SERS signals with a sensitivity of 10-13 M and enhancement factor (EF) of 5.8 × 106. Improved SERS spectrum uniformity with relative standard deviation (RSD) about 11.2% was also achieved due to the homogeneous distribution of these hot spot structures. The inherent biocompatibility of SNRs and facile fabrication processes utilized endowed the SERS substrates significant benefits toward biomedical applications, confirmed by cytocompatibility and improved SERS bioimaging capacity in vitro. The results of this study suggest the feasibility of forming high performance bioimaging systems through the use of naturally derived materials with special nanostructures.
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Affiliation(s)
- Fengrui Xu
- National Engineering Laboratory for Modern Silk and Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , 215123 Suzhou , People's Republic of China
| | - Fengguo Ma
- Key Laboratory of Rubber-plastics , Qingdao University of Science and Technology , 266042 Qingdao , People's Republic of China
| | - Zhaozhao Ding
- National Engineering Laboratory for Modern Silk and Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , 215123 Suzhou , People's Republic of China
- Department of Burns and Plastic Surgery , The Affiliated Hospital of Jiangnan University , Wuxi 214041 , People's Republic of China
| | - Liying Xiao
- National Engineering Laboratory for Modern Silk and Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , 215123 Suzhou , People's Republic of China
| | - Xiaoyi Zhang
- National Engineering Laboratory for Modern Silk and Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , 215123 Suzhou , People's Republic of China
| | - Qiang Lu
- National Engineering Laboratory for Modern Silk and Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , 215123 Suzhou , People's Republic of China
- Department of Burns and Plastic Surgery , The Affiliated Hospital of Jiangnan University , Wuxi 214041 , People's Republic of China
| | - Guozhong Lu
- Department of Burns and Plastic Surgery , The Affiliated Hospital of Jiangnan University , Wuxi 214041 , People's Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering , Tufts University , Medford , Massachusetts 02155 , United States
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