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Li N, Yuan Y, Liu J, Hou S. Direct chemical vapor deposition of graphene on plasma-etched quartz glass combined with Pt nanoparticles as an independent transparent electrode for non-enzymatic sensing of hydrogen peroxide. RSC Adv 2020; 10:20438-20444. [PMID: 35517744 PMCID: PMC9054246 DOI: 10.1039/d0ra01963a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 05/20/2020] [Indexed: 11/30/2022] Open
Abstract
In this work, chemical vapor deposition (CVD) method-grown graphene on plasma-etched quartz glass supported platinum nanoparticles (PtNPs/eQG) was constructed as an independent transparent electrode for non-enzymatic hydrogen peroxide (H2O2) detection. Graphene grown on quartz glass by the CVD method can effectively reduce the wrinkles and pollution caused by traditional transfer methods. The addition of the CF4 plasma-etched process accelerates the growth rate of graphene on quartz glass. The platinum nanoparticles (PtNPs) prepared by in situ sputtering have favorable dispersibility and maximize exposed active catalytic sites on graphene, providing performance advantages in the application of H2O2 detection. The resulting sensor's detection limit (3.3 nM, S/N = 3), detection linear range (10 nM to 80 μM) and response time (less than 2 s) were significantly superior to other graphene supported PtNPs materials in sensing of H2O2. In addition, the material preparation method was related to the non-transfer CVD method and in situ sputtering technology, allowing for the creation of independent electrodes without additional electrode modification processes. This primitive material preparation and electrode assembly process were promoted for the application and development of practical H2O2 sensors. In this work, chemical vapor deposition (CVD) method-grown graphene on plasma-etched quartz glass supported platinum nanoparticles (PtNPs/eQG) was constructed as an independent transparent electrode for non-enzymatic hydrogen peroxide (H2O2) detection.![]()
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Affiliation(s)
- Ning Li
- School of Chemistry and Chemical Engineering, Shandong University Jinan Shandong 250100 China.,National Engineering and Technology Research Center for Colloidal Materials, Shandong University Jinan Shandong 250100 China
| | - Yawen Yuan
- School of Chemistry and Chemical Engineering, Shandong University Jinan Shandong 250100 China.,Institute 53 of China North Industries Group Corporation Jinan Shandong 250031 China
| | - Jinglei Liu
- National Engineering and Technology Research Center for Colloidal Materials, Shandong University Jinan Shandong 250100 China
| | - Shifeng Hou
- National Engineering and Technology Research Center for Colloidal Materials, Shandong University Jinan Shandong 250100 China
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52
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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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53
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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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54
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Li Z, Li C, Yu J, Li Z, Zhao X, Liu A, Jiang S, Yang C, Zhang C, Man B. Aluminum nanoparticle films with an enhanced hot-spot intensity for high-efficiency SERS. OPTICS EXPRESS 2020; 28:9174-9185. [PMID: 32225529 DOI: 10.1364/oe.389886] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
The weak plasmonic coupling intensity in an aluminum (Al) nanostructure has limited potential applications in excellent low-cost surface-enhanced Raman scattering (SERS) substrates and light harvesting. In this report, we aim to elevate the plasmonic coupling intensity by fabricating an Al nanoparticle (NP)-film system. In the system, the Al NP are fabricated directly on different Al film layers, and the nanoscale-thick alumina interlayer obtained between neighboring Al films acts as natural dielectric gaps. Interestingly, as the number of Al film layers increase, the plasmonic couplings generated between the Al NP and Al film increase as well. It is demonstrated that the confined gap plasmon modes stimulated in the nanoscale-thick alumina region between the adjacent Al films contribute significantly to elevating the plasmonic coupling intensity. The finite-difference time-domain (FDTD) method is used to carry out the simulations and verifies this result.
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55
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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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56
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Li C, Li Z, Li S, Zhang Y, Sun B, Yu Y, Ren H, Jiang S, Yue W. LSPR optical fiber biosensor based on a 3D composite structure of gold nanoparticles and multilayer graphene films. OPTICS EXPRESS 2020; 28:6071-6083. [PMID: 32225864 DOI: 10.1364/oe.385128] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
In this paper, a localized surface-plasmon resonance (LSPR) biosensor, which uses a U-shaped multi-mode fiber (U-MMF), is introduced and investigated. It is modified with a complex of three-dimensional (3D) gold nanoparticles and multilayer graphene as spacer: n*(Au/G)@U-MMF, where n denotes the layer number of gold nanoparticles. The gold nanoparticles were synthesized by reducing chloroauric acid. Graphene films were formed using a liquid/chemical method. The number of gold-nanoparticle layers was found to be critical for the performance of the sensor. Moreover, using the finite-difference time domain, 3D nanostructures, with a wide range of gold-nanoparticle layers, were explored. The sensor showed the sensitivity of 1251.44 nm/RIU, as well as high stability and repeatability; for the measurement-process of time- and concentration-dependent DNA hybridization kinetics with detection concentrations, ranging from 0.1nM to 100 nM, the sensor displayed excellent performance, which points towards a vast potential in the field of medical diagnostics.
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57
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Xu L, Zhang H, Tian Y, Jiao A, Li S, Tan Y, Chen M, Chen F. Modified photochemical strategy to support highly-purity, dense and monodisperse Au nanospheres on graphene oxide for optimizing SERS detection. Talanta 2020; 209:120535. [PMID: 31892060 DOI: 10.1016/j.talanta.2019.120535] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/11/2019] [Accepted: 10/31/2019] [Indexed: 11/19/2022]
Abstract
The integration of highly-purity, dense and monodisperse plasmonic nanoparticles (NPs) on two-dimensional (2D) graphene-like support possesses great potential for optimizing surface-enhanced Raman spectroscopy (SERS). Based on ultraviolet (UV) laser-induced modified photochemical reaction, we report an ingenious and green strategy to support highly dispersed Au NPs with controllable distribution on graphene oxide (GO). Without using any stabilizing agents or other complex chemical additives, the GO with abundant oxygen-containing functional groups can be effectively excited by 375 nm laser irradiation in HAuCl4 solution, resulting in controlled reduction of Au ions and then overgrowth of highly-purity Au NPs. Highly dense and monodisperse Au NPs with uniform diameter of ~20 nm formed on GO supports can be achieved by 30 min irradiation, which can offer maximized SERS activity in comparison with GO/Au NPs obtained by other irradiation times. The optimized GO/Au NPs give rise to ultralow SERS analyses of (10-14 M) methylene blue (MB), (10-13 M) rhodamine 6G (R6G) and (10-13 M) malachite green (MG), respectively. More importantly, it can also simultaneously analyze these three aromatic dyes in a mixture condition at detection limits as low as nano-mole level (10-9-10-11 M), achieving the urgent requirement of mutually independent SERS trace detection. Therefore, the obtained GO/Au NPs with extremely high SERS activity and superior spectroscopic identification will be a prominent candidate for widespread SERS applications in real-word scenarios.
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Affiliation(s)
- Linlin Xu
- School of Physics, Shandong University, Jinan, 250100, China
| | - Hua Zhang
- School of Physics, Shandong University, Jinan, 250100, China
| | - Yue Tian
- School of Physics, Shandong University, Jinan, 250100, China
| | - Anxin Jiao
- School of Physics, Shandong University, Jinan, 250100, China
| | - Shuang Li
- School of Science, Shandong Jianzhu University, Jinan, 250101, China
| | - Yang Tan
- School of Physics, Shandong University, Jinan, 250100, China
| | - Ming Chen
- School of Physics, Shandong University, Jinan, 250100, China.
| | - Feng Chen
- School of Physics, Shandong University, Jinan, 250100, China
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58
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Krishnan SK, Chipatecua Godoy Y. Deep Eutectic Solvent-Assisted Synthesis of Au Nanostars Supported on Graphene Oxide as an Efficient Substrate for SERS-Based Molecular Sensing. ACS OMEGA 2020; 5:1384-1393. [PMID: 32010809 PMCID: PMC6990437 DOI: 10.1021/acsomega.9b02759] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/17/2019] [Indexed: 05/25/2023]
Abstract
The development of hybrid nanostructures of graphene oxide (GO) and metal nanoparticles (NPs) is of paramount interest for highly flexible surface-enhanced Raman scattering (SERS) substrate-based molecular sensing. In this work, we report a simple and eco-friendly synthesis strategy for the synthesis of a three-dimensional (3D) GO/gold nanostar (3D GO/Au NS) hybrid nanocomposite using deep eutectic solvent (DES) for SERS-based molecular sensing. The 3D GO/Au NS hybrid nanocomposite was obtained by a two-step synthetic process. In the first step, the GO nanosheets of thickness ∼1.25 nm were homogeneously dispersed in choline chloride/urea (molar ratio of 1:2)-derived DES, followed by functionalization of -NH groups using 3-aminopropyltriethoxysilane. Afterward, the presynthesized Au NSs of size ranging between 150-200 nm were then covalently attached on the -NH-functionalized GO nanosheets mediated by DES at 60 °C to obtain 3D GO/Au NS hybrid nanocomposites. Importantly, the SERS substrate fabricated using the 3D GO/Au NS hybrid nanocomposite exhibits highly enhanced SERS activity with an enhancement factor of 1.7 × 105 and high sensitivity for the detection of crystal violet with a concentration up to 10-11 M. The green synthetic approach presented here can be expected to be promising for the large-scale fabrication of GO-metal NP-based hybrid nanostructures for their potential applications in SERS-based sensing.
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Affiliation(s)
- Siva Kumar Krishnan
- CONACYT-Instituto
de Física, Benemérita Universidad
Autónoma de Puebla, Apdo. Postal J-48, Puebla 72570, Mexico
| | - Yuri Chipatecua Godoy
- CINVESTAV-Unidad
Queretaro, Lib. Norponiente
2000, Fracc. Real de Juriquilla, Querétaro 76230, Qro. Mexico
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59
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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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60
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Sun L, Cai J, Sun Y, Zhang D. Three-dimensional assembly of silver nanoparticles spatially confined by cellular structure of Spirulina, from nanospheres to nanosheets. NANOTECHNOLOGY 2019; 30:495704. [PMID: 31469089 DOI: 10.1088/1361-6528/ab3ee7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Three-dimensional (3D) ordered construction of nanoparticles (NPs) has attracted much attention in wide applications, however, techniques with respect to cost effective nanofabrication of well defined functional architectures is still lacking. To address this specific issue, a bio-interface confinement approach is proposed that precisely replicates the complex cellular structural features of microbes and integrates silver NP (SNP) building blocks into their 3D framework in a precise, low cost and mass production way. Herein, the SNPs with nanospheres and nanosheets structure were synthesized by way of electroless deposition using Spirulina as template. Results showed that SNPs were orderly assembled along the cellular structure, and the spatially confinement of cellular texture induced the transformation of SNPs from sphere to flake morphology during their continuous growth. The silver assembly not only shows good antibacterial activity, but also exhibits excellent surface enhanced Raman scattering (SERS) performance with the enhancement factor as high as 5.95 × 108 and good recuperability towards Rhodamine 6G. The fascinating SERS performance can be ascribed to the combined action of nanosheets morphology of SNPs, hierarchical nanostructure of the cellular structure, and the small interparticle spacing. This strategy provides an effective strategy for controllable and ordered 3D assembly of NPs by using the cellular texture.
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Affiliation(s)
- Lili Sun
- School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, People's Republic of China
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61
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Zhao N, Li H, Xie Y, Feng Z, Wang Z, Yang Z, Yan X, Wang W, Tian C, Yu H. 3D aluminum/silver hierarchical nanostructure with large areas of dense hot spots for surface-enhanced raman scattering. Electrophoresis 2019; 40:3123-3131. [PMID: 31576580 DOI: 10.1002/elps.201900285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 09/09/2019] [Accepted: 09/29/2019] [Indexed: 11/06/2022]
Abstract
Plasmonic nanomaterials possessing large-volume, high-density hot spots with high field enhancement are highly desirable for ultrasensitive surface-enhanced Raman scattering (SERS) sensing. However, many as-prepared plasmonic nanomaterials are limited in available dense hot spots and in sample size, which greatly hinder their wide applications in SERS devices. Here, we develop a two-step physical deposition protocol and successfully fabricate 3D hierarchical nanostructures with highly dense hot spots across a large scale (6 × 6 cm2 ). The nanopatterned aluminum film was first prepared by thermal evaporation process, which can provide 3D quasi-periodic cloud-like nanostructure arrays suitable for noble metal deposition; then a large number of silver nanoparticles with controllable shape and size were decorated onto the alumina layer surfaces by laser molecular beam epitaxy, which can realize large-area accessible dense hot spots. The optimized 3D-structured SERS substrate exhibits high-quality detection performance with excellent reproducibility (13.1 and 17.1%), whose LOD of rhodamine 6G molecules was 10-9 M. Furthermore, the as-prepared 3D aluminum/silver SERS substrate was applied in detection of melamine with the concentration down to 10-7 M and direct detection of melamine in infant formula solution with the concentration as low 10 mg/L. Such method to realize large-area hierarchical nanostructures can greatly simplify the fabrication procedure for 3D SERS platforms, and should be of technological significance in mass production of SERS-based sensors.
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Affiliation(s)
- Nan Zhao
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
| | - Hefu Li
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
| | - Yanru Xie
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
| | - Zhenbao Feng
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
| | - Zongliang Wang
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
| | - Zhenshan Yang
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
| | - Xunling Yan
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
| | - Wenjun Wang
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
| | - Cunwei Tian
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
| | - Huishan Yu
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, P. R. China
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62
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Surface- and Tip-Enhanced Raman Scattering in Tribology and Lubricant Detection—A Prospective. LUBRICANTS 2019. [DOI: 10.3390/lubricants7090081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS) are fast, convenient, and non-destructive molecular detection techniques, which provide a practical method for studying interfacial reactions with high resolution and accuracy. Both techniques are able to provide quantitative and qualitative information on the chemical properties, conformational changes, order state, and molecular orientation of various surfaces. This paper aims at summarizing the research efforts in the field of SERS and TERS related to tribological systems with a special emphasis on thin film and nanoparticles. This overview starts with a brief introduction for both techniques. Afterwards, it summarizes pros and cons of both techniques related to the advanced characterization of tribologically induced reactions layers. Moreover, the feasibility of both techniques to evaluate the friction and wear performance of new lubricant additives including solid lubricants is discussed. At the end of this review article, the main challenges and future directions in this field are prospected to emphasize the development direction of SERS and TERS in tribology and lubricants.
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63
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Gao X, Zhang H, Fan X, Zhang C, Sun Y, Liu C, Li Z, Jiang S, Man B, Yang C. Toward the highly sensitive SERS detection of bio-molecules: the formation of a 3D self-assembled structure with a uniform GO mesh between Ag nanoparticles and Au nanoparticles. OPTICS EXPRESS 2019; 27:25091-25106. [PMID: 31510388 DOI: 10.1364/oe.27.025091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
We report a structure to form a hybrid system in which a mesh is sandwiched between Au nanoparticles (AuNPs) and Ag nanoparticles (AgNPs). This self-assembly method uses smaller and denser AgNPs "hot spots" that are spin-coated on a AuNPs@GO mesh nanostructure formed by the reaction of GO@MoS2 and HAuCl4 to form AuNPs@GO mesh@AgNPs SERS substrates. Sub-40-nm mesh and 10-nm gaps ensure the landing sites and spacing of the AgNPs. Consequently, the design integrates the strong plasmonic effects of AgNPs and AuNPs with the biological compatibility of the GO mesh. Crystal violet (CV) as low as 10-15 M can be detected, which confirms the ultrahigh sensitivity of AuNPs@GO mesh@AgNPs. Furthermore, the reproducibility, stability, and finite-difference time-domain (FDTD) simulations confirm the value of this SERS substrate. This material can be used for label-free DNA detection, and the AuNPs@GO mesh@AgNPs substrate facilitated single-molecule DNA detection limits.
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64
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Zhao Y, Zheng F, Ke W, Zhang W, Shi L, Liu H. Gap-Tethered Au@AgAu Raman Tags for the Ratiometric Detection of MC-LR. Anal Chem 2019; 91:7162-7172. [DOI: 10.1021/acs.analchem.9b00348] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuan Zhao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Fangjie Zheng
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Ke
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Zhang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Lixia Shi
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Han Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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65
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Gong W, Jiang S, Li Z, Li C, Xu J, Pan J, Huo Y, Man B, Liu A, Zhang C. Experimental and theoretical investigation for surface plasmon resonance biosensor based on graphene/Au film/D-POF. OPTICS EXPRESS 2019; 27:3483-3495. [PMID: 30732368 DOI: 10.1364/oe.27.003483] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/14/2019] [Indexed: 05/18/2023]
Abstract
A D-shape plastic optical fiber (D-POF) surface plasmon resonance (SPR) biosensor based on the graphene/Au film (G/Au) was proposed and experimentally demonstrated for detection of DNA hybridization process. To improve the detection performance of SPR sensors, the Physical Vapor Deposition (PVD) method was used to evaporate the Au film directly onto the graphene grown on copper foil, and the Au film acted as a role of traditional Polymethyl Methacrylate (PMMA). The process made graphene and Au film form seamless contact. Next, the G/Au was transferred onto the D-shape fiber together. We explored the G/Au SPR sensor by using the finite element method (FEM) and obtained the optimum materials thickness to form configuration. Compared to other plastic optical fiber experiments, the proposed sensor's sensitivity was improved effectively and calculated as 1227 nm/RIU in a range of glucose solution. Meanwhile, our proposed sensor successfully distinguishes hybridization and single nucleotide polymorphisms (SNP) by observing the resonance wavelength change. It also exhibits a satisfactory linear response (R2 = 0.996) to the target DNA liquids with respective concentrations of 0.1nM to1µM, which shows this method's wide potential in medical diagnostics.
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Yang W, Li Z, Lu Z, Yu J, Huo Y, Man B, Pan J, Si H, Jiang S, Zhang C. Graphene-Ag nanoparticles-cicada wings hybrid system for obvious SERS performance and DNA molecular detection. OPTICS EXPRESS 2019; 27:3000-3013. [PMID: 30732328 DOI: 10.1364/oe.27.003000] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
In recent years, biomaterials have increasingly attracted attention on surface-enhanced Raman spectroscopy (SERS) due to their well Raman performance while metal particles are combined with biological substrates. Therefore, we propose an environmentally friendly substrate based on silver-plated cicada wings with seamless graphene layer (Gr-AgNPs-C.w.), which can be prepared with a simple and inexpensive method. Compared with AgNPs-C.w., Gr-AgNPs-C.w. hybrids show better SERS performance with high sensitivity, good uniformity and good stability with R6G detection. The minimum detected concentration can reach 10-15 M, and the value of R2 can reach 0.996, respectively. Theoretical simulation demonstrates the situation of electromagnetic field through COMSOL software. In addition, due to the affinity of graphene for biomolecules, we can successfully detect the DNA biomolecules through a simple process. Therefore, this cheap and efficient natural SERS substrate has great potential for a considerable number of biochemical SERS applications and can broaden the way in which multiple SERS platforms derived from other natural materials are prepared.
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Wanwong S, Sangkhun W, Homayounfar SZ, Park KW, Andrew TL. Wash-stable, oxidation resistant conductive cotton electrodes for wearable electronics. RSC Adv 2019; 9:9198-9203. [PMID: 35517689 PMCID: PMC9062007 DOI: 10.1039/c9ra00932a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 03/14/2019] [Indexed: 11/21/2022] Open
Abstract
Commercial, untreated cotton fabrics have been directly silver coated using one-step electroless deposition and, subsequently, conformally encapsulated with a thin layer of poly(perfluorodecylacrylate) (PFDA) using initiated chemical vapor deposition (iCVD). The surface of these PFDA encapsulated fabrics are notably water-repellent while still displaying a surface resistance as low as 0.2 Ω cm−1, making them suitable for incorporation into launderable wearable electronics. X-ray photoelectron spectroscopy confirms that the PFDA encapsulation prevents oxidation of the silver coating, whereas unencapsulated samples display detrimental silver oxidation after a month of air exposure. The wash stability of PFDA-encapsulated, silver-coated cotton is evaluated using accelerated laundering conditions, following established AATCC protocols, and the samples are observed to withstand up to twenty home laundering cycles without notable mechanical degradation of the vapor-deposited PFDA encapsulation. As a proof-of-concept, PFDA-Ag cotton is employed as a top and bottom electrode in a layered, all-fabric triboelectric generator that produces voltage outputs as high as 25 V with small touch actions, such as tapping. Poly(perflurododecyacrylate) encapsulated, silver-coated cotton electrodes that retained low surface resistance, being water-repellent and oxidative resistance was created for wearable electronics.![]()
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Affiliation(s)
- Sompit Wanwong
- Division of Materials Technology
- School of Energy
- Environment and Materials
- King Mongkut's University of Technology Thonburi
- Bangkok 10140
| | - Weradesh Sangkhun
- Division of Materials Technology
- School of Energy
- Environment and Materials
- King Mongkut's University of Technology Thonburi
- Bangkok 10140
| | | | - Kwang-Won Park
- Department of Chemistry
- University of Massachusetts Amherst
- USA
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68
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Huang Z, Zhang A, Zhang Q, Cui D. Nanomaterial-based SERS sensing technology for biomedical application. J Mater Chem B 2019. [DOI: 10.1039/c9tb00666d] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Over the past few years, nanomaterial-based surface-enhanced Raman scattering (SERS) detection has emerged as a new exciting field in which theoretical and experimental studies of the structure and function of nanomaterials have become a focus.
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Affiliation(s)
- Zhicheng Huang
- Institute of Nano Biomedicine and Engineering
- Department of Instrument Science and Engineering
- Thin Film and Microfabrciation Key Laboratory of Administration of Education
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
| | - Amin Zhang
- Institute of Nano Biomedicine and Engineering
- Department of Instrument Science and Engineering
- Thin Film and Microfabrciation Key Laboratory of Administration of Education
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
| | - Qian Zhang
- Institute of Nano Biomedicine and Engineering
- Department of Instrument Science and Engineering
- Thin Film and Microfabrciation Key Laboratory of Administration of Education
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering
- Department of Instrument Science and Engineering
- Thin Film and Microfabrciation Key Laboratory of Administration of Education
- School of Electronic Information and Electrical Engineering
- Shanghai Jiao Tong University
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69
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Donato MG, Rajamanickam VP, Foti A, Gucciardi PG, Liberale C, Maragò OM. Optical force decoration of 3D microstructures with plasmonic particles. OPTICS LETTERS 2018; 43:5170-5173. [PMID: 30320847 DOI: 10.1364/ol.43.005170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 09/27/2018] [Indexed: 06/08/2023]
Abstract
Optical forces are used to push and aggregate gold nanorods onto several substrates creating surface-enhanced Raman scattering (SERS) active hot spots for Raman-based identification of proteins. By monitoring the increase of the protein SERS signal, we observe different aggregation times for different curvatures of the substrates. The slower aggregation dynamics on curved surfaces is justified by a simple geometrical model. In particular, this technique is used to decorate three-dimensional microstructures and to quickly realize hybrid micro/nanosensors for highly sensitive detection of biological material directly in a liquid environment.
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Zhao X, Yu J, Zhang Z, Li C, Li Z, Jiang S, Pan J, Liu A, Zhang C, Man B. Heterogeneous and cross-distributed metal structure hybridized with MoS 2 as high-performance flexible SERS substrate. OPTICS EXPRESS 2018; 26:23831-23843. [PMID: 30184879 DOI: 10.1364/oe.26.023831] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/22/2018] [Indexed: 06/08/2023]
Abstract
The heterogeneous metal nanostructures have attracted great interest in various applications due to the synergistic effects between two noble metals, especially in surface enhanced Raman scattering (SERS) region. Herein, we prepared a 3D SERS active substrate based on heterogeneous and cross-distributed metal structure hybridized with MoS2by in situ synthesizing gold nanoparticles (AuNPs) on MoS2 membrane. The AuNPs-AgNPs/MoS2/P-Si hybrid SERS substrate were characterized by a scanning electron microscope (SEM), a transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS) to investigate the character and the content of elements. In virtue of the heterogeneous and cross-distributed structure and ultra-narrow interparticle gap generating strong electric fields enhancement, the ultra-low concentration of probe molecule were detected (the LOD of 10-12 M for R6G and CV, 10-11 M for MG), serving the optimal SERS performance. The excellent uniformity and reproducibility were achieved by the proposed substrate. Moreover, the flexible MoS2/AuNPs-AgNPs/PMMA pyramidal SERS substrate was applied to detect melamine molecule in liquid milk (the LOD reached 10-9 M), which revealed great potential to be an outstanding SERS substrate for biological and chemical detection.
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71
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Guo Y, Yu J, Li C, Li Z, Pan J, Liu A, Man B, Wu T, Xiu X, Zhang C. SERS substrate based on the flexible hybrid of polydimethylsiloxane and silver colloid decorated with silver nanoparticles. OPTICS EXPRESS 2018; 26:21784-21796. [PMID: 30130880 DOI: 10.1364/oe.26.021784] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Various flexible SERS sensors have attracted widespread concern in performing the direct identification of the analytes adsorbed on arbitrary surfaces. Here, a sample method was proposed to integrate plasmonic nanoparticles into polydimethylsiloxane (PDMS) to fabricate flexible substrate for the decoration of silver nanoparticles (AgNPs). The flexible SERS sensor based on AgNPs/AgNPs-PDMS offers highly sensitive Raman detection with enhancement factor up to 8.3 × 109, which can be attributed to the integrative effects from both the increase of the light absorption of the embedded AgNPs in PDMS substrate and the EM enhancement from the adjacent top-top, bottom-bottom and top-bottom AgNPs. After undergoing the cyclic mechanical deformation, the SERS substrate still maintains high mechanical stability and stable SERS signals. However, upon stretching the flexible substrate, there was an amusing phenomenon that SERS signals can be highly increased, which results from that the reduction of lateral nanogaps between top and bottom of the PDMS boundary strengthens the trigger of the plasmon coupling as demonstrated by the simulated result. This result reveals that the tuning and the coupling of the electromagnetic fields can be effectively controlled by the macroscopic mechanical solicitation. That will have an important significance for practical applications in strain-dependent sensors and detectors.
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Jie Z, Zenghe Y, Tiancheng G, Yunfei L, Dapeng W, Yong Z. Graphene/Ag nanoholes composites for quantitative surface-enhanced Raman scattering. OPTICS EXPRESS 2018; 26:22432-22439. [PMID: 30130937 DOI: 10.1364/oe.26.022432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 08/10/2018] [Indexed: 06/08/2023]
Abstract
Quantitative analysis is of importance for surface-enhanced Raman scattering (SERS). However, due to fluctuations in the enhancing performance of the substrates, it is difficult to obtain reliable results. In this paper, a reliable quantitative method is introduced to overcome this problem with graphene on the top of Ag nanoholes structure as SERS substrates by an internal standard method. To achieve the internal standard method, Ag nanoholes are firstly prepared by surface plasmon (SP) lithography technology. Then a monolayer graphene is transferred onto the surface of the Ag nanoholes structure. 2D Raman peak of graphene is used as an internal standard to normalize the intensity of analyte molecules. The random representative and averaged Raman intensity of different concentration of rhodamine 6G (R6G) is collected with graphene/Ag nanoholes (GE/AgNHs) structures as SERS substrates, and the corresponding normalized intensity is also calculated and discussed in details. The relative standard deviation (RSD) is reduced from 25% (Raman intensity) to 12% (normalized intensity). The quantification of R6G is demonstrated down to the detection limit of 10-15 M.
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Xu J, Li C, Si H, Zhao X, Wang L, Jiang S, Wei D, Yu J, Xiu X, Zhang C. 3D SERS substrate based on Au-Ag bi-metal nanoparticles/MoS 2 hybrid with pyramid structure. OPTICS EXPRESS 2018; 26:21546-21557. [PMID: 30130861 DOI: 10.1364/oe.26.021546] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
It is very vital to construct the dense hot spots for the strong surface-enhanced Raman scattering (SERS) signals. We take full advantage of the MoS2 edge-active sites induced from annealing the Ag film on the surface of the MoS2. Furthermore, the composite structure of Au-Ag bi-metal nanoparticles (NPs)/MoS2 hybrid with pyramid structure is obtained by the in situ grown AuNPs around AgNPs, which serves the optimal SERS performance (enhancement factor is ~9.67 × 109) in experiment. Due to the introduction of AuNPs with the simple method, the denser hot spots contribute greatly to the stronger local electric field, which is also confirmed by the finite-different time-domain (FDTD) simulation. Therefore, the ultralow limit of detection (the LOD of 10-13 and 10-12 M respectively for the resonant R6G and non-resonant CV), quantitative detection and excellent reproducibility are achieved by the proposed SERS substrate. For practical application, the melamine molecule is detected with the LOD of 10-10 M using the proposed SERS substrate that has the potential to be a food security sensor.
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Wang Y, Wang M, Sun X, Shi G, Zhang J, Ma W, Ren L. Grating-like SERS substrate with tunable gaps based on nanorough Ag nanoislands/moth wing scale arrays for quantitative detection of cypermethrin. OPTICS EXPRESS 2018; 26:22168-22181. [PMID: 30130914 DOI: 10.1364/oe.26.022168] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 08/03/2018] [Indexed: 05/27/2023]
Abstract
Considering the complexity and high-consumption of the existing approaches to fabricate three-dimensional (3D) regular substrate templates, the scales of the moth wings with evenly-distributed nanoarrays were discovered to provide an ideal bioscaffold for metal silver (Ag) to decorate on to fabricate a flexible, highly-ordered, low-cost and large-scale Ag nanoislands/moth wing (Ag/MW) SERS-active substrate. The grating-like substrate with the optimal morphology of rough and hierarchical Ag nanoislands exhibited high enhancement factor (EF, ~4.16 × 105), low detection limit (10-10 M) to 4-aminothiophenol (4-ATP), outstanding signal uniformity (the relative standard deviations were less than 15%) and superior identification performance in the quantitative detection of pesticide cypermethrin. The three-dimensional finite-difference time-domain (3D-FDTD) method simulated the spatial distribution of the electric field intensity in the substrates with different morphologies, showing a potential strong enhancement of Raman signals in sub-10 nm gaps between two adjacent Ag nanoislands of different layers. These prominent SERS properties of novel Ag/MW SERS-active substrates suggest their potential value in rapid on-side biological and chemical sensing. Meanwhile, the highly-ordered nanoarrays of moth wings provide a new idea for the preparation of regular biomimetic nanomaterials.
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Yuan X, Niu J, Zeng J, Jing Q. Cement-Induced Coagulation of Aqueous Graphene Oxide with Ultrahigh Capacity and High Rate Behavior. NANOMATERIALS 2018; 8:nano8080574. [PMID: 30060440 PMCID: PMC6116235 DOI: 10.3390/nano8080574] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 07/20/2018] [Accepted: 07/23/2018] [Indexed: 01/07/2023]
Abstract
Graphene oxide (GO) has excellent physicochemical properties and is used in multiple areas. However, the potential toxicity and environmental problems associated with GO increase its risk to the ecological system. In this study, cement was employed as a coagulant to eliminate GO from aqueous solutions. The effects of the cement dosage, the contact time, and the concentration and volume of the aqueous GO solution on the GO coagulation capacity were investigated in detail. The results showed that the dosage of cement had a significant effect on the coagulation process, and coagulation equilibrium was achieved in less than 1 h. Compared to coagulants used to remove GO from water in other reports, cement exhibited an ultrahigh coagulation capacity of approximately 5981.2 mg/g with 0.4 mg/mL GO solution. The kinetic analysis showed that the GO removal behavior could be described by a pseudo second-order model. The in-depth mechanism of GO coagulation using cement included Ca2+-induced coagulation of GO and adsorption by the hydrated product of cement paste. The present study revealed that cement could be a very cheap and promising material for the efficient elimination of GO from aqueous solutions.
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Affiliation(s)
- Xiaoya Yuan
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China.
| | - Jiawei Niu
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China.
| | - Junjie Zeng
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China.
| | - Qiuye Jing
- College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China.
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