Conecte-se

Bibliografias temáticas / SERS SUBSTRAT / Artigos de revistas

Siga este link para ver outros tipos de publicações sobre o tema: SERS SUBSTRAT.

Artigos de revistas sobre o tema "SERS SUBSTRAT"

Autor: Grafiati

Publicado: 22 de fevereiro de 2025

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos

Selecione um tipo de fonte:

Veja os 50 melhores artigos de revistas para estudos sobre o assunto "SERS SUBSTRAT".

Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.

Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.

Veja os artigos de revistas das mais diversas áreas científicas e compile uma bibliografia correta.

1

Sari, Kartika, Rosy Hutami, Azzahra Putri Rialdi, Marlinda Indriati e Anna Mardiana Handayani. "Ulasan Kritis Artikel : Democratizing Robust SERS Nano-Sensors for Food Safety Diagnostics". Karimah Tauhid 3, n.º 11 (12 de novembro de 2024): 12175–96. https://doi.org/10.30997/karimahtauhid.v3i11.15859.

Texto completo da fonte

Resumo:

Sebuah artikel yang berjudul “Democratizing Robust SERS Nano-Sensors for Food Safety Diagnostics” melaporkan metode deteksi residu pestisida yang lebih cepat dari metode deteksi lainnya (SERS). Teknik SERS yang dilaporkan penulis berbasis pada nano-sensor yang terbentuk dari nanopartikel Ag dan nano-thin SiO2 dengan metode Flame Spray Pyrolysis (FSP). Metode ulasan yang dilakukan adalah dengan menetapkan satu artikel terpilih dan mengkritisinya. Hasil yang didapatkan dari ulasan ini adalah pada beberapa parameter pengujian, penulis tidak mencantumkan jumlah pengulangan, waktu, dan jumlah sampel yang dianalisis. Namun, penulis menyampaikan secara jelas tentang validasi metode yang digunakan menggunakan sistem alat Raman portable spectrometer. Kami menyoroti adanya data penting yang disampaikan pada supplementary data yang dapat ditampilkan dalam artikel utama. Penulis juga belum mengemukakan alasan pemilihan rhodamine 6G. Penulis belum mengemukakan alasan pemilihan jus jeruk sebagai sampel uji deteksi. Kami menilai bahwa produk SERS hasil penelitian penulis sudah dekat dengan proses aplikasi komersial. Tujuan penelitian yang dikemukakan penulis telah tercapai meskipun tidak dijelaskan secara khusus perhitungan biaya produksi substrat SERS yang dihasilkan.

Estilos ABNT, Harvard, Vancouver, APA, etc.

2

Mayerhöfer, Thomas G., e Jürgen Popp. "Periodic array-based substrates for surface-enhanced infrared spectroscopy". Nanophotonics 7, n.º 1 (1 de janeiro de 2018): 39–79. http://dx.doi.org/10.1515/nanoph-2017-0005.

Texto completo da fonte

Resumo:

AbstractAt the beginning of the 1980s, the first reports of surface-enhanced infrared spectroscopy (SEIRS) surfaced. Probably due to signal-enhancement factors of only 101 to 103, which are modest compared to those of surface-enhanced Raman spectroscopy (SERS), SEIRS did not reach the same significance up to date. However, taking the compared to Raman scattering much larger cross-sections of infrared absorptions and the enhancement factors together, SEIRS reaches about the same sensitivity for molecular species on a surface in terms of the cross-sections as SERS and, due to the complementary nature of both techniques, can valuably augment information gained by SERS. For the first 20 years since its discovery, SEIRS relied completely on metal island films, fabricated by either vapor or electrochemical deposition. The resulting films showed a strong variance concerning their structure, which was essentially random. Therefore, the increase in the corresponding signal-enhancement factors of these structures stagnated in the last years. In the very same years, however, the development of periodic array-based substrates helped SEIRS to gather momentum. This development was supported by technological progress concerning electromagnetic field solvers, which help to understand plasmonic properties and allow targeted design. In addition, the strong progress concerning modern fabrication methods allowed to implement these designs into practice. The aim of this contribution is to critically review the development of these engineered surfaces for SEIRS, to compare the different approaches with regard to their performance where possible, and report further gain of knowledge around and in relation to these structures.

Estilos ABNT, Harvard, Vancouver, APA, etc.

3

Ossig, R., Y. H. Kwon, F. Hubenthal e H. D. Kronfeldt. "Naturally grown Ag nanoparticles on quartz substrates as SERS substrate excited by a 488 nm diode laser system for SERDS". Applied Physics B 106, n.º 4 (7 de fevereiro de 2012): 835–39. http://dx.doi.org/10.1007/s00340-011-4866-8.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

4

Liu, Chang, Qianqian Su, Li Li, Jie Sun, Jian Dong e Weiping Qian. "Substrate-Immersed Solvothermal Synthesis of Ordered SiO2/Ag Arrays as Catalytic SERS Substrates". Nano 13, n.º 05 (maio de 2018): 1850049. http://dx.doi.org/10.1142/s1793292018500492.

Texto completo da fonte

Resumo:

In this work, we designed a simple substrate-immersed solvothermal route for the one-step synthesis of novel ordered SiO2/Ag arrays, employing SiO2 colloidal crystals as templates and alcohol as reducing agent. The Ag nanoparticles were uniformly deposited in situ onto SiO2 colloidal crystals, which exhibited high surface enhanced Raman spectroscopy (SERS) activity and uniform SERS intensity. It was found that ordered SiO2/Ag arrays could rapidly scavenge the absorbed-Nile blue A (NBA) molecules from the surfaces with the assistance of H2O2, while the SERS signals of NBA decreased sharply and almost completely disappeared within four minutes. This can be attributed to the superior catalytic activity of Ag nanoparticles. After five times of re-immersion and re-absorbing process of NBA, the substrates could still keep [Formula: see text] 74.8% SERS intensity versus the original. The high activity and durability of the as-prepared SiO2/Ag SERS substrate endow them as a promising candidate for trace detection.

Estilos ABNT, Harvard, Vancouver, APA, etc.

5

Yao Senhao, 姚森浩, 冉娜 Ran Na, 王宁 Wang Ning e 张洁 Zhang Jie. "银纳米树SERS基底拉曼增强特性". Acta Optica Sinica 44, n.º 21 (2024): 2130001. http://dx.doi.org/10.3788/aos241183.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

6

Zhang, Liyuan, Xu Li, Lydia Ong, Rico F. Tabor, Brianna A. Bowen, Aeshin I. Fernando, Azadeh Nilghaz et al. "Cellulose nanofibre textured SERS substrate". Colloids and Surfaces A: Physicochemical and Engineering Aspects 468 (março de 2015): 309–14. http://dx.doi.org/10.1016/j.colsurfa.2014.12.056.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

7

Wu Chunfang, 吴春芳, 段鹏飞 Duan Pengfei, 潘浩 Pan Hao, 朱业传 Zhu Yechuan, 张凯锋 Zhang Kaifeng, 李坤 Li Kun e 魏杰 Wei Jie. "一种光栅/纳米颗粒结构的双共振SERS基底". Acta Optica Sinica 42, n.º 14 (2022): 1405002. http://dx.doi.org/10.3788/aos202242.1405002.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

8

Lai Chunhong, 赖春红, 赖林 Lai lin, 张芝峻 Zhang Zhijun, 张帅康 Zhang Shuaikang, 姜小明 Jiang Xiaoming e 刘家瑜 Liu Jiayu. "基于金纳米颗粒-半胱胺SERS基底的水中硝酸根检测". Chinese Journal of Lasers 49, n.º 11 (2022): 1111002. http://dx.doi.org/10.3788/cjl202249.1111002.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

9

Wu Chunfang, 吴春芳, 张焱 Zhang Yan, 潘浩 Pan Hao, 朱业传 Zhu Yechuan, 杨占君 Yang Zhanjun e 魏杰 Wei Jie. "金光栅/金纳米颗粒SERS基底的设计、制备及其性能". Acta Optica Sinica 43, n.º 21 (2023): 2124001. http://dx.doi.org/10.3788/aos230867.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

10

Cintra, Suzanne, Mamdouh E. Abdelsalam, Philip N. Bartlett, Jeremy J. Baumberg, Timothy A. Kelf, Yoshihiro Sugawara e Andrea E. Russell. "Sculpted substrates for SERS". Faraday Discuss. 132 (2006): 191–99. http://dx.doi.org/10.1039/b508847j.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

11

YU Yinhui, 余银辉, 朱文江 ZHU Wenjiang, 吴苏敏 WU Sumin e 周倩 ZHOU Qian. "基于CNTs-FAgNPs基底的油中溶解糠醛SERS原位检测研究". ACTA PHOTONICA SINICA 51, n.º 9 (2022): 0930001. http://dx.doi.org/10.3788/gzxb20225109.0930001.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

12

Tang Zhimou, 汤智谋, 吕振寅 Zhenyin Lü e 张洁 Zhang Jie. "基于自组装技术的柔性SERS基底拉曼增强研究". Acta Optica Sinica 43, n.º 21 (2023): 2124003. http://dx.doi.org/10.3788/aos230894.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

13

Chou, Alison, Esa Jaatinen, Ricardas Buividas, Gediminas Seniutinas, Saulius Juodkazis, Emad L. Izake e Peter M. Fredericks. "SERS substrate for detection of explosives". Nanoscale 4, n.º 23 (2012): 7419. http://dx.doi.org/10.1039/c2nr32409a.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

14

Mukherjee, Ashutosh, Quan Liu, Frank Wackenhut, Fang Dai, Monika Fleischer, Pierre-Michel Adam, Alfred J. Meixner e Marc Brecht. "Gradient SERS Substrates with Multiple Resonances for Analyte Screening: Fabrication and SERS Applications". Molecules 27, n.º 16 (10 de agosto de 2022): 5097. http://dx.doi.org/10.3390/molecules27165097.

Texto completo da fonte

Resumo:

Surface-enhanced Raman spectroscopy (SERS) provides a strong enhancement to an inherently weak Raman signal, which strongly depends on the material, design, and fabrication of the substrate. Here, we present a facile method of fabricating a non-uniform SERS substrate based on an annealed thin gold (Au) film that offers multiple resonances and gap sizes within the same sample. It is not only chemically stable, but also shows reproducible trends in terms of geometry and plasmonic response. Scanning electron microscopy (SEM) reveals particle-like and island-like morphology with different gap sizes at different lateral positions of the substrate. Extinction spectra show that the plasmonic resonance of the nanoparticles/metal islands can be continuously tuned across the substrate. We observed that for the analytes 1,2-bis(4-pyridyl) ethylene (BPE) and methylene blue (MB), the maximum SERS enhancement is achieved at different lateral positions, and the shape of the extinction spectra allows for the correlation of SERS enhancement with surface morphology. Such non-uniform SERS substrates with multiple nanoparticle sizes, shapes, and interparticle distances can be used for fast screening of analytes due to the lateral variation of the resonances within the same sample.

Estilos ABNT, Harvard, Vancouver, APA, etc.

15

Huebner, Uwe, Karina Weber, Dana Cialla, Robert Haehle, Henrik Schneidewind, Matthias Zeisberger, Roland Mattheis, Hans-Georg Meyer e Juergen Popp. "Microfabricated polymer-substrates for SERS". Microelectronic Engineering 98 (outubro de 2012): 444–47. http://dx.doi.org/10.1016/j.mee.2012.05.036.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

16

Ankamwar, Balaprasad, Ujjal Kumar Sur e Pulak Das. "SERS study of bacteria using biosynthesized silver nanoparticles as the SERS substrate". Analytical Methods 8, n.º 11 (2016): 2335–40. http://dx.doi.org/10.1039/c5ay03014e.

Texto completo da fonte

Resumo:

Surface-enhanced Raman scattering (SERS) spectroscopy has great advantages as a spectroscopic analytical tool due to the large enhancement of the weak Raman signal and thereby facilitates suitable identification of chemical and biological systems.

Estilos ABNT, Harvard, Vancouver, APA, etc.

17

Gao, Ying, Nan Gao, Hongdong Li, Xiaoxi Yuan, Qiliang Wang, Shaoheng Cheng e Junsong Liu. "Semiconductor SERS of diamond". Nanoscale 10, n.º 33 (2018): 15788–92. http://dx.doi.org/10.1039/c8nr04465a.

Texto completo da fonte

Resumo:

In this work, we report a favorable diamond substrate to realize semiconductor surface-enhanced Raman spectroscopy (SERS) for trace molecular probes with high sensitivity, stability, reproducibility, recyclability and universality.

Estilos ABNT, Harvard, Vancouver, APA, etc.

18

Jiang, Zhihui, Shen Zhang, Congxi Song, Hongmin Mao, Xin Zhao, Huanjun Lu e Zhaoliang Cao. "Improvement of Raman spectrum uniformity of SERS substrate based on flat electrode". Chinese Optics Letters 21, n.º 11 (2023): 113001. http://dx.doi.org/10.3788/col202321.113001.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

19

Lai, Yi-Chen, Hsin-Chia Ho, Bo-Wei Shih, Feng-Yu Tsai e Chun-Hway Hsueh. "High performance and reusable SERS substrates using Ag/ZnO heterostructure on periodic silicon nanotube substrate". Applied Surface Science 439 (maio de 2018): 852–58. http://dx.doi.org/10.1016/j.apsusc.2018.01.092.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

20

KIM, Donghyeon, Nakyung Kim, Jihee Kim e Mijeong Kang. "Distinctive Electrochemical Surface-Enhanced Raman Spectroscopy and Its Application for DNA-Sensor". ECS Meeting Abstracts MA2024-02, n.º 67 (22 de novembro de 2024): 4767. https://doi.org/10.1149/ma2024-02674767mtgabs.

Texto completo da fonte

Resumo:

Raman scattering is used in basic research on the physical chemistry of molecules and practical analysis applications for molecular detection. To obtain sufficient intensity of Raman scattering, Surface-enhanced Raman Scattering (SERS) is adopted, in which signals are amplified by the localized surface plasmons of metallic nanomaterials. Electrochemical surface-enhanced Raman spectroscopy (EC-SERS) is employed to further enhance SERS signals. Conventional EC-SERS further enhances signals by simply biasing the SERS substrate and forming a resonance condition in which a charge transfer between the SERS substrate and Raman-active molecules can occur. We amplified Raman signals using an electrochemical reaction in a different way from conventional EC-SERS. We provided a potential to the SERS substrate in the presence of a plasmonic precursor to generate secondary plasmonic layer and to induce additional chemical enhancement, resulting in the significant amplification of SERS signal. To deepen our understanding of the phenomena occurring in the EC-SERS process, we fabricated a nanoporous Au substrate and systematically varied its characteristics (e.g., pore size, thickness of a porous layer) and observed the dynamic response of the EC-SERS signal. The condition of the SERS substrate that maximizes the EC-SERS signal was explored. An application experiment was conducted to detect DNA with high sensitivity under these experimental conditions. DNA capture was achieved via a sandwich hybridization procedure: capture DNA was immobilized onto the SERS substrate and bound to a portion of the target DNA, while probe DNA with a tethered Raman-active probe bound to the remaining portion. Raman-active probes were positioned near SERS substrate only in the presence of target DNA. EC-SERS signals were measured by inducing a secondary plasmonic surface through an electrochemical reaction. We confirmed that these EC-SERS could serve as effective DNA-sensor, providing higher detection sensitivity than SERS.

Estilos ABNT, Harvard, Vancouver, APA, etc.

21

Mu, Yunyun, e Xinping Zhang. "A Paper-Fiber-Supported 3D SERS Substrate". Plasmonics 15, n.º 3 (24 de dezembro de 2019): 889–96. http://dx.doi.org/10.1007/s11468-019-01097-3.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

22

Li, Rui, Jia Lei, Yi Zhou e Hong Li. "Hybrid 3D SERS substrate for Raman spectroscopy". Chemical Physics Letters 754 (setembro de 2020): 137733. http://dx.doi.org/10.1016/j.cplett.2020.137733.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

23

Yu, Tsung-Han, Chin-Hsian Ho, Cheng-You Wu, Ching-Hsuan Chien, Chia-Her Lin e Szetsen Lee. "Metal-organic frameworks: a novel SERS substrate". Journal of Raman Spectroscopy 44, n.º 11 (11 de setembro de 2013): 1506–11. http://dx.doi.org/10.1002/jrs.4378.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

24

Yang, Zichen, Chaoqun Ma, Jiao Gu, Yamin Wu, Chun Zhu, Lei Li, Hui Gao et al. "SERS Detection of Benzoic Acid in Milk by Using Ag-COF SERS Substrate". Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 267 (fevereiro de 2022): 120534. http://dx.doi.org/10.1016/j.saa.2021.120534.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

25

Zhang, Wending, Tianyang Xue, Lu Zhang, Fanfan Lu, Min Liu, Chao Meng, Dong Mao e Ting Mei. "Surface-Enhanced Raman Spectroscopy Based on a Silver-Film Semi-Coated Nanosphere Array". Sensors 19, n.º 18 (14 de setembro de 2019): 3966. http://dx.doi.org/10.3390/s19183966.

Texto completo da fonte

Resumo:

In this paper, we present a convenient and economical method to fabricate a silver (Ag)-film semi-coated polystyrene (PS) nanosphere array substrate for surface-enhanced Raman spectroscopy (SERS). The SERS substrate was fabricated using the modified self-assembled method combined with the vacuum thermal evaporation method. By changing the thickness of the Ag film, the surface morphology of the Ag film coated on the PS nanospheres can be adjusted to obtain the optimized localized surface plasmonic resonance (LSPR) effect. The 3D-finite-difference time-domain simulation results show that the SERS substrate with an Ag film thickness of 10 nm has tens of times the electric field intensity enhancement. The Raman examination results show that the SERS substrate has excellent reliability and sensitivity using rhodamine-6G (R6G) and rhodamine-B (RB) as target analytes, and the Raman sensitivity can reach 10−10 M. Meanwhile, the SERS substrate has excellent uniformity based on the Raman mapping result. The Raman enhancement factor of the SERS substrate was estimated to be 5.1 × 106. This kind of fabrication method for the SERS substrate may be used in some applications of Raman examination.

Estilos ABNT, Harvard, Vancouver, APA, etc.

26

Azziz, Aicha, Wafa Safar, Yang Xiang, Mathieu Edely e Marc Lamy de la Chapelle. "Sensing performances of commercial SERS substrates". Journal of Molecular Structure 1248 (janeiro de 2022): 131519. http://dx.doi.org/10.1016/j.molstruc.2021.131519.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

27

Kruszewski, S., e M. Cyrankiewicz. "Aggregated Silver Sols as SERS Substrates". Acta Physica Polonica A 121, n.º 1A (janeiro de 2012): A—68—A—74. http://dx.doi.org/10.12693/aphyspola.121.a-68.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

28

Cortés, Emiliano, Nicolás G. Tognalli, Alejandro Fainstein, María E. Vela e Roberto C. Salvarezza. "Ag-modified Au nanocavity SERS substrates". Physical Chemistry Chemical Physics 11, n.º 34 (2009): 7469. http://dx.doi.org/10.1039/b904685m.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

29

Kozhina, E. P., S. A. Bedin, I. V. Razumovskaya e A. V. Zalygin. "Synthesizing of the SERS-active substrates". Journal of Physics: Conference Series 1283 (julho de 2019): 012009. http://dx.doi.org/10.1088/1742-6596/1283/1/012009.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

30

Alper, Joe. "Lab Fab: Stamping out SERS substrates". Analytical Chemistry 80, n.º 7 (abril de 2008): 2304. http://dx.doi.org/10.1021/ac0860323.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

31

Gómez, Manuel, e Massimo Lazzari. "Reliable and cheap SERS active substrates". Materials Today 17, n.º 7 (setembro de 2014): 358–59. http://dx.doi.org/10.1016/j.mattod.2014.08.001.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

32

Kahl, M., E. Voges, S. Kostrewa, C. Viets e W. Hill. "Periodically structured metallic substrates for SERS". Sensors and Actuators B: Chemical 51, n.º 1-3 (agosto de 1998): 285–91. http://dx.doi.org/10.1016/s0925-4005(98)00219-6.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

33

Gellini, Cristina, Maurizio Muniz-Miranda, Massimo Innocenti, Francesco Carlà, Francesca Loglio, Maria Luisa Foresti e Pier Remigio Salvi. "Nanopatterned Ag substrates for SERS spectroscopy". Physical Chemistry Chemical Physics 10, n.º 31 (2008): 4555. http://dx.doi.org/10.1039/b807663d.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

34

Jarvis, Roger M., Helen E. Johnson, Emma Olembe, Arunkumar Panneerselvam, Mohammad A. Malik, Mohammad Afzaal, Paul O'Brien e Royston Goodacre. "Towards quantitatively reproducible substrates for SERS". Analyst 133, n.º 10 (2008): 1449. http://dx.doi.org/10.1039/b800340h.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

35

Atanasov, P. A., N. N. Nedyalkov, A. O. Dikovska, N. Fukata e W. Jevasuwan. "SERS active substrates for neonicotinoids studies". Journal of Physics: Conference Series 2487, n.º 1 (1 de maio de 2023): 012012. http://dx.doi.org/10.1088/1742-6596/2487/1/012012.

Texto completo da fonte

Resumo:

Abstract Different basic substrates, – Si wafers, (001) SiO2, printer paper, Al2O3, micro-processed (001) SiO2 or diamond abrasive films, have been used to create active Ag and Au nanostructures. In this lecture, we report the use of pulsed-laser deposition and thermal deposition both followed by pulsed-laser annealing; the results are compared. Advanced substrates of Au and Ag on Si were produced in view of surface-enhanced Raman spectroscopy (SERS) detection of the imidacloprid (Nuprid 200 SP) neonicotinoid insecticide in amounts much smaller than those ordinarily applied in agricultural medicine. The SERS peaks intensity rose by at least one order of magnitude after the pulsed-laser annealing of the metal films and nanoparticles arrays formation. The enhancement factor (EF) was estimated to be >5×104, the limit of detection (LOD) reached being < 0.5 nM. The properties of the advanced substrates were compared and discussed. The importance of SERS as a relatively inexpensive and simple method is emphasized in regulating, monitoring and controlling the level of such chemicals as environmental pollutants, thus precluding harming the human and, especially, honey bees’ health.

Estilos ABNT, Harvard, Vancouver, APA, etc.

36

Xu, Fugang, Mengren Xuan, Zixiang Ben, Wenjuan Shang e Guangran Ma. "Surface enhanced Raman scattering analysis with filter-based enhancement substrates: A mini review". Reviews in Analytical Chemistry 40, n.º 1 (1 de janeiro de 2021): 75–92. http://dx.doi.org/10.1515/revac-2021-0126.

Texto completo da fonte

Resumo:

Abstract Surface enhanced Raman is a powerful analytical tool with high sensitivity and unique specificity and promising applications in various branches of analytical chemistry. Despite the fabrication of ingenious enhancement substrate used in laboratory research, the development of simple, flexible, and cost-effective substrate is also great important for promoting the application of SERS in practical analysis. Recently, paper and filter membrane as support to fabricate flexible SERS substrates received considerable attentions. Paper-based SERS substrate has been reviewed but no summary on filter-based SERS substrate is available. Compared with paper, filter membrane has unique advantage in robust mechanics, diverse component, and tunable pore size. These characteristics endow the filter-based substrates great advantages for practical SERS analysis including simple and low-cost substrate preparation, high efficiency in preconcentration, separation and detection procedure. Therefore, filter-based substrates have shown great promise in SERS analysis in environment monitoring, food safety with high sensitivity and efficiency. As more and more work has been emerged, it is necessary to summarize the state of such a research topic. Here, the research on filter involved SERS analysis in the past eight years is summarized. A short introduction was presented to understand the background, and then the brief history of filter-based substrate is introduced. After that, the preparation of filter-based substrate and the role of filter are summarized. Then, the application of filter involved SERS substrate in analysis is presented. Finally, the challenges and perspective on this topic is discussed.

Estilos ABNT, Harvard, Vancouver, APA, etc.

37

He, Shuai, Jefri Chua, Eddie Khay Ming Tan e James Chen Yong Kah. "Optimizing the SERS enhancement of a facile gold nanostar immobilized paper-based SERS substrate". RSC Advances 7, n.º 27 (2017): 16264–72. http://dx.doi.org/10.1039/c6ra28450g.

Texto completo da fonte

Resumo:

Schematic of study to optimize the SERS enhancement factor of a low cost and facile gold nanostar (AuNS)-based paper-SERS substrate through optimizing the paper materials, immobilization strategies, and SERS acquisition conditions.

Estilos ABNT, Harvard, Vancouver, APA, etc.

38

Jing, Zhiyu, Ling Zhang, Xiaofei Xu, Shengli Zhu e Heping Zeng. "Carbon-Assistant Nanoporous Gold for Surface-Enhanced Raman Scattering". Nanomaterials 12, n.º 9 (25 de abril de 2022): 1455. http://dx.doi.org/10.3390/nano12091455.

Texto completo da fonte

Resumo:

Surface-enhanced Raman scattering (SERS) technology can amplify the Raman signal due to excited localized surface plasmon (LSP) from SERS substrates, and the properties of the substrate play a decisive role for SERS sensing. Several methods have been developed to improve the performance of the substrate by surface modification. Here, we reported a surface modification method to construct carbon-coated nanoporous gold (C@NPG) SERS substrate. With surface carbon-assistant, the SERS ability of nanoporous gold (NPG) seriously improved, and the detection limit of the dye molecule (crystal violet) can reach 10−13 M. Additionally, the existence of carbon can avoid the deformation of the adsorbed molecule caused by direct contact with the NPG. The method that was used to improve the SERS ability of the NPG can be expanded to other metal structures, which is a convenient way to approach a high-performance SERS substrate.

Estilos ABNT, Harvard, Vancouver, APA, etc.

39

Jing, Zhiyu, Ling Zhang, Xiaofei Xu, Shengli Zhu e Heping Zeng. "Carbon-Assistant Nanoporous Gold for Surface-Enhanced Raman Scattering". Nanomaterials 12, n.º 9 (25 de abril de 2022): 1455. http://dx.doi.org/10.3390/nano12091455.

Texto completo da fonte

Resumo:

Surface-enhanced Raman scattering (SERS) technology can amplify the Raman signal due to excited localized surface plasmon (LSP) from SERS substrates, and the properties of the substrate play a decisive role for SERS sensing. Several methods have been developed to improve the performance of the substrate by surface modification. Here, we reported a surface modification method to construct carbon-coated nanoporous gold (C@NPG) SERS substrate. With surface carbon-assistant, the SERS ability of nanoporous gold (NPG) seriously improved, and the detection limit of the dye molecule (crystal violet) can reach 10−13 M. Additionally, the existence of carbon can avoid the deformation of the adsorbed molecule caused by direct contact with the NPG. The method that was used to improve the SERS ability of the NPG can be expanded to other metal structures, which is a convenient way to approach a high-performance SERS substrate.

Estilos ABNT, Harvard, Vancouver, APA, etc.

40

Ge, Kun, Yuling Hu e Gongke Li. "Recent Progress on Solid Substrates for Surface-Enhanced Raman Spectroscopy Analysis". Biosensors 12, n.º 11 (30 de outubro de 2022): 941. http://dx.doi.org/10.3390/bios12110941.

Texto completo da fonte

Resumo:

Surface-enhanced Raman spectroscopy (SERS) is a powerful vibrational spectroscopy technique with distinguished features of non-destructivity, ultra-sensitivity, rapidity, and fingerprint characteristics for analysis and sensors. The SERS signals are mainly dependent on the engineering of high-quality substrates. Recently, solid SERS substrates with diverse forms have been attracting increasing attention due to their promising features, including dense hot spot, high stability, controllable morphology, and convenient portability. Here, we comprehensively review the recent advances made in the field of solid SERS substrates, including their common fabrication methods, basic categories, main features, and representative applications, respectively. Firstly, the main categories of solid SERS substrates, mainly including membrane substrate, self-assembled substrate, chip substrate, magnetic solid substrate, and other solid substrate, are introduced in detail, as well as corresponding construction strategies and main features. Secondly, the typical applications of solid SERS substrates in bio-analysis, food safety analysis, environment analysis, and other analyses are briefly reviewed. Finally, the challenges and perspectives of solid SERS substrates, including analytical performance improvement and largescale production level enhancement, are proposed.

Estilos ABNT, Harvard, Vancouver, APA, etc.

41

Kadochkin, Alexey, Andrey Savitskiy, Dmitry Korobko e Evgeny Kitsyuk. "Numerical Optimization Technique of Multilayer SERS Substrates". Photonics 11, n.º 1 (25 de dezembro de 2023): 12. http://dx.doi.org/10.3390/photonics11010012.

Texto completo da fonte

Resumo:

A numerical optimization technique of a three-dimensional (3D) SERS substrate with finite element analysis is proposed. Using the optical reciprocity theorem, we have shown that instead of the well-known local field enhancement criterion, it is more correct to use the Purcell factor as an objective function that determines the quality of the SERS substrate. This allows us to take into account the detail inhomogeneity of local fields in an arbitrary three-dimensional structure containing multiple emitters. We have theoretically shown that employment of a 3D CNT structure as a nanoparticle substrate instead of a nanoparticle monolayer allows one to achieve the enhancement of the SERS signal.

Estilos ABNT, Harvard, Vancouver, APA, etc.

42

Choudhari, K. S., Rajeev K. Sinha, Suresh D. Kulkarni, C. Santhosh e Sajan D. George. "Facile fabrication of superhydrophobic gold loaded nanoporous anodic alumina as surface-enhanced Raman spectroscopy substrates". Journal of Optics 24, n.º 4 (18 de fevereiro de 2022): 044002. http://dx.doi.org/10.1088/2040-8986/ac50fe.

Texto completo da fonte

Resumo:

Abstract A facile method of creating a sensitive and inexpensive superhydrophobic nanoporous anodic alumina (NAA) based surface-enhanced Raman spectroscopy (SERS) substrate is reported. A superhydrophobic NAA was created by coating polydimethylsiloxane on NAA via polymer evaporation technique which further coated with gold to fabricate NAA-based superhydrophobic SERS substrate. NAA and nanopatterned aluminum with varying pore properties were used for the SERS studies using rhodamine 6 G as the model analyte. The limit of detection was calculated for the SERS substrate and found to be as low as 146.3 pM. The analytical enhancement factor was found to be 6.9 × 105 successfully demonstrating the potential use of NAA-based superhydrophobic substrate as a SERS substrate. The substrates displayed good spatial reproducibility with a relative standard deviation of 12.62%, demonstrating the potential use of such substrates in chemical and biological sensing applications. The method reported is general and provides a simple and cost-effective approach for generating efficient SERS platforms for trace molecular sensing.

Estilos ABNT, Harvard, Vancouver, APA, etc.

43

Park, Myungchan, Kuan Soo Shin, Ji Won Lee e Kwan Kim. "Novel Fabrication of Au Nanoparticle Film on a Polyelectrolyte‐coated Glass for Efficient Surface‐enhanced Raman Scattering^#". Bulletin of the Korean Chemical Society 36, n.º 3 (11 de fevereiro de 2015): 743–47. http://dx.doi.org/10.1002/bkcs.10135.

Texto completo da fonte

Resumo:

In this paper, we report a novel method for the growth of gold nanoparticles on a polyelectrolyte‐coated glass and its application as a surface‐enhanced Raman scattering (SERS) substrate. Gold nanoparticles were readily grown on a polyelectrolyte‐coated substrate using butylamine as the reductant of HAuCl4 . The Au nanoparticles formed on the polyelectrolyte‐coated substrate exhibited superior SERS activity compared to an electrochemically roughened Au substrate or a vacuum‐evaporated Au film. In addition, our Au substrate shows excellent reproducibility and noticeable stability as an SERS substrate. The proposed strategy is simple, cost effective, and reproducible for the mass production of gold nanoparticles films, irrespective of the type of the underlying substrates, which therefore are useful in the development of plasmonics and SERS‐based analytical devices.

Estilos ABNT, Harvard, Vancouver, APA, etc.

44

Liu, Mimi, Anjuli Bhandari, Mujtaba Ali Haqqani Mohammed, Daniela R. Radu e Cheng-Yu Lai. "Versatile Silver Nanoparticles-Based SERS Substrate with High Sensitivity and Stability". Applied Nano 2, n.º 3 (25 de agosto de 2021): 242–56. http://dx.doi.org/10.3390/applnano2030017.

Texto completo da fonte

Resumo:

Surface-enhanced Raman scattering has developed into a mature analytical technique useful in various applications; however, the reproducible fabrication of a portable SERS substrate with high sensitivity and good uniformity is still an ongoing pursuit. Reported herein is a rapid fabrication method of an inexpensive SERS substrate that enables sub-nanomolar detection of molecular analytes. The SERS substrate is obtained by application of silver nanoparticles (Ag NPs)-based ink in precisely design patterns with the aid of an in-house assembled printer equipped with a user-fillable pen. Finite-difference time-domain (FDTD) simulations show a 155-times Ag NP electric field enhancement for Ag nanoparticle pairs with particle spacing of 2 nm. By comparing the SERS performance of SERS substrate made with different support matrices and fabrication methods, the PET-printed substrate shows optimal performance, with an estimated sensitivity enhancement factor of 107. The quantitative analysis of rhodamine 6G absorbed on optimized SERS substrate exhibits a good linear relationship, with a correlation coefficient (R2) of 0.9998, between the SERS intensity at 610 cm−1 and the concentration in the range of 0.1 nM—1μM. The practical low limit detection of R6G is 10 pM. The optimized SERS substrates show good stability (at least one month) and have been effectively tested in the detection of cancer drugs, including doxorubicin and metvan.

Estilos ABNT, Harvard, Vancouver, APA, etc.

45

Zhou Yixuan, 周一轩, 杨婧 Yang Jing, 徐陶然 Xu Taoran, 乔治 Qiao Zhi, 牟达 Mu Da, 陈佩佩 Chen Peipei e 褚卫国 Chu Weiguo. "混合抗蚀剂法制备纳米球型SERS基底". Acta Optica Sinica 42, n.º 15 (2022): 1524002. http://dx.doi.org/10.3788/aos202242.1524002.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

46

Yamaguchi, Umi, Maki Ogawa e Hiroyuki Takei. "Patterned Superhydrophobic SERS Substrates for Sample Pre-Concentration and Demonstration of Its Utility through Monitoring of Inhibitory Effects of Paraoxon and Carbaryl on AChE". Molecules 25, n.º 9 (8 de maio de 2020): 2223. http://dx.doi.org/10.3390/molecules25092223.

Texto completo da fonte

Resumo:

We describe a patterned surface-enhanced Raman spectroscopy (SERS) substrate with the ability to pre-concentrate target molecules. A surface-adsorbed nanosphere monolayer can serve two different functions. First, it can be made into a SERS platform when covered by silver. Alternatively, it can be fashioned into a superhydrophobic surface when coated with a hydrophobic molecular species such as decyltrimethoxy silane (DCTMS). Thus, if silver is patterned onto a latter type of substrate, a SERS spot surrounded by a superhydrophobic surface can be prepared. When an aqueous sample is placed on it and allowed to dry, target molecules in the sample become pre-concentrated. We demonstrate the utility of the patterned SERS substrate by evaluating the effects of inhibitors to acetylcholinesterase (AChE). AChE is a popular target for drugs and pesticides because it plays a critical role in nerve signal transduction. We monitored the enzymatic activity of AChE through the SERS spectrum of thiocholine (TC), the end product from acetylthiocholine (ATC). Inhibitory effects of paraoxon and carbaryl on AChE were evaluated from the TC peak intensity. We show that the patterned SERS substrate can reduce both the necessary volumes and concentrations of the enzyme and substrate by a few orders of magnitude in comparison to a non-patterned SERS substrate and the conventional colorimetric method.

Estilos ABNT, Harvard, Vancouver, APA, etc.

47

Goel, Richa, Sibashish Chakraborty, Vimarsh Awasthi, Vijayant Bhardwaj e Satish Kumar Dubey. "Exploring the various aspects of Surface enhanced Raman spectroscopy (SERS) with focus on the recent progress: SERS-active substrate, SERS-instrumentation, SERS-application". Sensors and Actuators A: Physical 376 (outubro de 2024): 115555. http://dx.doi.org/10.1016/j.sna.2024.115555.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

48

Fu, Xiaoqi, Guolin Zhang, Tingshuang Wu e Shuang Wang. "Multifunctional gold-loaded TiO2 thin film: photocatalyst and recyclable SERS substrate". Canadian Journal of Chemistry 91, n.º 11 (novembro de 2013): 1112–16. http://dx.doi.org/10.1139/cjc-2013-0234.

Texto completo da fonte

Resumo:

A simple strategy for synthesizing gold-loaded TiO2 thin film (Au/TiO2) for use as multifunctional photocatalyst and recyclable surface-enhanced Raman scattering (SERS) substrate is introduced. Macroporous TiO2 thin film is prepared through the dip-coating method and made the SERS activity by deposition of gold nanoparticles on its surface. Owing to the high photocatalytic activity of TiO2, the substrate can degrade adsorbates into small inorganic molecules under UV irradiation. In this manner, the substrate is able to self-clean and be reused for a new SERS detection cycle. The photodegradation and SERS experimental results show that Au/TiO2 is a good candidate for both photocatalyst and SERS substrate and exhibits high recyclability in the detection of organic pollutants.

Estilos ABNT, Harvard, Vancouver, APA, etc.

49

Chen, Fanhong, Yupeng Zhao, Shaoxun Zhang, Shuhua Wei, Anjie Ming e Changhui Mao. "Hydrophobic Wafer-Scale High-Reproducibility SERS Sensor Based on Silicon Nanorods Arrays Decorated with Au Nanoparticles for Pesticide Residue Detection". Biosensors 12, n.º 5 (26 de abril de 2022): 273. http://dx.doi.org/10.3390/bios12050273.

Texto completo da fonte

Resumo:

High sensitivity and reproducibility are highly desirable to a SERS sensor in diverse detection applications. Moreover, it is a great challenge to determine how to promote the target molecules to be more concentrated on the hotspots of the SERS substrate by engineering a surface with switching interfacial wettability. Along these lines, wafer-scale uniformly hydrophobic silicon nanorods arrays (SiNRs) decorated with Au nanoparticles were designed as the SERS substrate. Typically, the SERS substrate was fabricated by enforcing the polystyrene (PS) sphere self-assembly, as well as the plasma etching and the magnetron sputtering techniques. Consequently, the SERS substrate was treated by soaking within a n-dodecyl mercaptan (NDM) solution at different times in order to obtain adjustable wettabilities. By leveraging the electromagnetic enhancement resulted from the Au nanostructures and enrichment effect induced by the hydrophobicity, the SERS substrate is endowed with efficient SERS capabilities. During the detection of malachite green (MG), an ultralow relative standard deviation (RSD) 4.04–6.14% is achieved and the characteristic signal of 1172 cm−1 can be detected as low as 1 ng/mL. The proposed SiNRs’ structure presents outstanding SERS activity with sensitivity and reproducibility rendering thus an ideal candidate for potential application in analytical detection fields.

Estilos ABNT, Harvard, Vancouver, APA, etc.

50

Chen, Fanhong, Yupeng Zhao, Shaoxun Zhang, Shuhua Wei, Anjie Ming e Changhui Mao. "Hydrophobic Wafer-Scale High-Reproducibility SERS Sensor Based on Silicon Nanorods Arrays Decorated with Au Nanoparticles for Pesticide Residue Detection". Biosensors 12, n.º 5 (26 de abril de 2022): 273. http://dx.doi.org/10.3390/bios12050273.

Texto completo da fonte

Resumo:

High sensitivity and reproducibility are highly desirable to a SERS sensor in diverse detection applications. Moreover, it is a great challenge to determine how to promote the target molecules to be more concentrated on the hotspots of the SERS substrate by engineering a surface with switching interfacial wettability. Along these lines, wafer-scale uniformly hydrophobic silicon nanorods arrays (SiNRs) decorated with Au nanoparticles were designed as the SERS substrate. Typically, the SERS substrate was fabricated by enforcing the polystyrene (PS) sphere self-assembly, as well as the plasma etching and the magnetron sputtering techniques. Consequently, the SERS substrate was treated by soaking within a n-dodecyl mercaptan (NDM) solution at different times in order to obtain adjustable wettabilities. By leveraging the electromagnetic enhancement resulted from the Au nanostructures and enrichment effect induced by the hydrophobicity, the SERS substrate is endowed with efficient SERS capabilities. During the detection of malachite green (MG), an ultralow relative standard deviation (RSD) 4.04–6.14% is achieved and the characteristic signal of 1172 cm−1 can be detected as low as 1 ng/mL. The proposed SiNRs’ structure presents outstanding SERS activity with sensitivity and reproducibility rendering thus an ideal candidate for potential application in analytical detection fields.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Oferecemos descontos em todos os planos premium para autores cujas obras estão incluídas em seleções literárias temáticas. Contate-nos para obter um código promocional único!