利用柠檬酸钠还原法制备了粒径均匀的 AuNPs,并成功实现了其在 APTMS 修饰的玻璃表面的自组装,得到表面增强拉曼(SERS)基底。以 R6G 为探针分子检验了 SERS 基底的活性,其具有较强的增强性能。探讨了不同粒径 AuNPs 对 SERS 基底性能的影响,结果表明 SERS 基底的增强因子随着粒径的增大而增强。这种自组装策略为低浓度有机污染物的探测提供了一种有效的方法。
Gold nanopartcles with a narrow size distribution were prepared through a reduction process by triso-dium citrate,and were self-assembled on the glass substrate modified with APTMS.Then surface-enhanced Raman scattering (SERS)substrates were fabricated.R6G was used as a probe molecule to exam the performance of the fab-ricated substrates and quite strong SERS intensities were obtained.The effect of the size of gold nanoparticles on SERS intensity was investigated.The result showed that the substrate with a larger size of gold nanoparticles self-as-sembled produced a stronger enhancement factor (EF).This self-assembly strategy provides an effective method for detecting low-concentration organic pollutants.
参考文献
| [1] | Hacksung Kim;Kathryn M. Kosuda;Richard P. Van Duyne.Resonance Raman and surface-and tip-enhanced Raman spectroscopy methods to study solid catalysts and heterogeneous catalytic reactions[J].Chemical Society Reviews,201012(12):4820-4844. |
| [2] | Qian, XM;Li, J;Nie, SM.Stimuli-Responsive SERS Nanoparticles: Conformational Control of Plasmonic Coupling and Surface Raman Enhancement[J].Journal of the American Chemical Society,200922(22):7540-7541. |
| [3] | Kneipp K;Wang Y;Kneipp H;Perelman LT;Itzkan I;Dasari R;Feld MS.Single molecule detection using surface-enhanced Raman scattering (SERS)[J].Physical review letters,19979(9):1667-1670. |
| [4] | Michael P. Cecchini;Vladimir A. Turek;Jack Paget.Self-assembled nanoparticle arrays for multiphase trace analyte detection[J].Nature materials,20132(2):165-171. |
| [5] | Dougan, J.A.;MacRae, D.;Graham, D.;Faulds, K..DNA detection using enzymatic signal production and SERS[J].Chemical communications,201116(16):4649-4651. |
| [6] | Ming Li;Jianming Zhang;Savan Suri;Letha J. Sooter;Dongling Ma;Nianqiang Wu.Detection of Adenosine Triphosphate with an Aptamer Biosensor Based on Surface-Enhanced Raman Scattering[J].Analytical chemistry,20126(6):2837-2842. |
| [7] | Zhong-Qun Tian;Bin Ren;De-Win Wu.Surface-Enhanced Raman Scattering: From Noble to Transition Metals and from Rough Surfaces to Ordered Nanostructures[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,200237(37):9463-9483. |
| [8] | Wustholz, K.L.;Henry, A.-I.;McMahon, J.M.;Freeman, R.G.;Valley, N.;Piotti, M.E.;Natan, M.J.;Schatz, G.C.;Duyne, R.P.V..Structure-activity relationships in gold nanoparticle dimers and trimers for surface-enhanced raman spectroscopy[J].Journal of the American Chemical Society,201031(31):10903-10910. |
| [9] | Ju-Hyun Kim;Taejoon Kang;Seung Min Yoo;Sang Yup Lee;Bongsoo Kim;Yang-Kyu Choi.A well-ordered flower-like gold nanostructure for integrated sensors via surface-enhanced Raman scattering[J].Nanotechnology,200923(23):235302:1-235302:6. |
| [10] | De-Yin Wu;Jian-Feng Li;Bin Ren.Electrochemical surface-enhanced Raman spectroscopy of nanostructures[J].Chemical Society Reviews,20085(5):1025-1041. |
| [11] | Xu, W.;Ling, X.;Xiao, J.;Dresselhaus, M.S.;Kong, J.;Xu, H.;Liu, Z.;Zhang, J..Surface enhanced Raman spectroscopy on a flat graphene surface[J].Proceedings of the National Academy of Sciences of the United States of America,201224(24):9281-9286. |
| [12] | Han Zhu;MingLiang Du;Ming Zhang;Pan Wang;ShiYong Bao;Meiling Zou;YaQin Fu;JuMing Yao.Self-assembly of various Au nanocrystals on functionalized water-stable PVA/PEI nanofibers: A highly efficient surface-enhanced Raman scattering substrates with high density of "hot" spots[J].Biosensors & Bioelectronics: The International Journal for the Professional Involved with Research, Technology and Applications of Biosensers and Related Devices,2014:91-101. |
| [13] | Kun Zhang;Ji Ji;Yixin Li;Baohong Liu.Interfacial Self-Assembled Functional Nanoparticle Array: A Facile Surface-Enhanced Raman Scattering Sensor for Specific Detection of Trace Analytes[J].Analytical chemistry,201413(13):6660-6665. |
| [14] | Tomokatsu Hayakawa;Yoshltaka Usui;Subramanian Bharathi;Masayuki Nogami.Second Harmonic Generation from Coupled Surface-Plasmon Resonances in Self-Assembled Gold-Nanoparticle Monolayers Coated with an Aminosilane[J].Advanced Materials,200416(16):1408-1412. |
| [15] | Tiwari VS;Oleg T;Darbha GK;Hardy W;Singh JP;Ray PC.Non-resonance: SERS effects of silver colloids with different shapes[J].Chemical Physics Letters,20071-3(1-3):77-82. |
| [16] | Kuang-Hsuan Yang;Yu-Chuan Liu;Chung-Chin Yu.Enhancements in intensity and stability of surface-enhanced Raman scattering on optimally electrochemically roughened silver substrates[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,200840(40):4849-4855. |
| [17] | Shao MW;Lu L;Wang H;Wang S;Zhang ML;Ma DDD;Lee ST.An ultrasensitive method: surface-enhanced Raman scattering of Ag nanoparticles from beta-silver vanadate and copper[J].Chemical communications,200820(20):2310-2312. |
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