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Yu J, Gao Y, Zhang W, Wang P, Fang Y, Yang L. Localized surface plasmon resonance (LSPR) excitation on single silver nanoring with nanoscale surface roughness. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 317:124405. [PMID: 38718746 DOI: 10.1016/j.saa.2024.124405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 04/30/2024] [Accepted: 05/01/2024] [Indexed: 05/31/2024]
Abstract
With the expansion of the application of high-sensitivity Surface-enhanced Raman scattering (SERS) technique, micro SERS-active substrates with rich optical properties and high-level functions are desired. In this study, silver nanorings with nanoscale surface roughness were fabricated as a new type of enclosed quasi-2D micro-SERS-active substrate. Highly-crystalline spherical and hemispherical silver nanoprotrusions were densely and uniformly distributed over the entire surface of the nanorings. The SERS signals were significantly enhanced on the roughened silver nanorings which were mainly derived from the maximal localized surface plasmon resonance (LSPR) points at the junctions between adjacent coupled nanoprotrusions on the roughened nanorings. The mapping image shows a uniform and intense LSPR enhancement over the nanorings, owing to the uniform and dense distribution of silver nanoprotrusions and the resulting uniform distribution of maximal LSPR points on the roughened nanorings. The dark-field spectra further indicated that the single roughened silver nanoring had significant LSPR enhancement, a wide LSPR frequency-range response, and adaptability for SERS enhancement. Notably, both the measured and simulated results demonstrate that the maximal LSPR enhancement at the junctions between the nanoprotrusions, which are distributed on the inner surface of the silver nanoring, is higher than that on the outer surface because of the plasmon-focusing effect of the enclosed silver nanoring, which leads to the lateral asymmetrical distribution of LSPR intensity, indicating more LSPR and SERS features. These results indicate that single roughened silver nanorings exhibit excellent performance as a new type of enclosed quasi-2D silver nanoring micro-SERS-active substrate, microzone LSPR catalysis, and micro/nanodevices.
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Affiliation(s)
- Jianhai Yu
- Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Yanan Gao
- Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Wenzheng Zhang
- Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Peijie Wang
- Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Yan Fang
- Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China.
| | - Longkun Yang
- Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China.
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2
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Horne J, Beckers P, Sacré PY, De Bleye C, Francotte P, Thelen N, Hubert P, Ziemons E, Hubert C. Optimisation of a Microwave Synthesis of Silver Nanoparticles by a Quality by Design Approach to Improve SERS Analytical Performances. Molecules 2024; 29:3442. [PMID: 39065020 PMCID: PMC11280077 DOI: 10.3390/molecules29143442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 07/19/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024] Open
Abstract
A major limitation preventing the use of surface-enhanced Raman scattering (SERS) in routine analyses is the signal variability due to the heterogeneity of metallic nanoparticles used as SERS substrates. This study aimed to robustly optimise a synthesis process of silver nanoparticles to improve the measured SERS signal repeatability and the protocol synthesis repeatability. The process is inspired by a chemical reduction method associated with microwave irradiation to guarantee better controlled and uniform heating. The innovative Quality by Design strategy was implemented to optimise the different parameters of the process. A preliminary investigation design was firstly carried out to evaluate the influence of four parameters selected by means of an Ishikawa diagram. The critical quality attributes were to maximise the intensity of the SERS response and minimise its variance. The reaction time, temperature and stirring speed are critical process parameters. These were optimised using an I-optimal design. A robust operating zone covering the optimal reaction conditions (3.36 min-130 °C-600 rpm) associated with a probability of success was modelled. Validation of this point confirmed the prediction with intra- and inter-batch variabilities of less than 15%. In conclusion, this study successfully optimised silver nanoparticles by a rapid, low cost and simple technique enhancing the quantitative perspectives of SERS.
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Affiliation(s)
- Julie Horne
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Pierre Beckers
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Pierre-Yves Sacré
- Research Support Unit in Chemometrics, Department of Pharmacy, CIRM, University of Liege (ULiege), 4000 Liege, Belgium
| | - Charlotte De Bleye
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Pierre Francotte
- Laboratory of Medicinal Chemistry, Department of Pharmacy, CIRM, University of Liege (ULiege), 4000 Liege, Belgium
| | - Nicolas Thelen
- GIGA-Neurosciences, Cell Biology, University of Liege (ULiege), 4000 Liege, Belgium
| | - Philippe Hubert
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Eric Ziemons
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
| | - Cédric Hubert
- Laboratory of Pharmaceutical Analytical Chemistry, Department of Pharmacy, CIRM, ViBra-Sante Hub, University of Liege (ULiege), 4000 Liege, Belgium
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3
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Rezaei B, Harun A, Wu X, Iyer PR, Mostufa S, Ciannella S, Karampelas IH, Chalmers J, Srivastava I, Gómez-Pastora J, Wu K. Effect of Polymer and Cell Membrane Coatings on Theranostic Applications of Nanoparticles: A Review. Adv Healthc Mater 2024:e2401213. [PMID: 38856313 DOI: 10.1002/adhm.202401213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/28/2024] [Indexed: 06/11/2024]
Abstract
The recent decade has witnessed a remarkable surge in the field of nanoparticles, from their synthesis, characterization, and functionalization to diverse applications. At the nanoscale, these particles exhibit distinct physicochemical properties compared to their bulk counterparts, enabling a multitude of applications spanning energy, catalysis, environmental remediation, biomedicine, and beyond. This review focuses on specific nanoparticle categories, including magnetic, gold, silver, and quantum dots (QDs), as well as hybrid variants, specifically tailored for biomedical applications. A comprehensive review and comparison of prevalent chemical, physical, and biological synthesis methods are presented. To enhance biocompatibility and colloidal stability, and facilitate surface modification and cargo/agent loading, nanoparticle surfaces are coated with different synthetic polymers and very recently, cell membrane coatings. The utilization of polymer- or cell membrane-coated nanoparticles opens a wide variety of biomedical applications such as magnetic resonance imaging (MRI), hyperthermia, photothermia, sample enrichment, bioassays, drug delivery, etc. With this review, the goal is to provide a comprehensive toolbox of insights into polymer or cell membrane-coated nanoparticles and their biomedical applications, while also addressing the challenges involved in translating such nanoparticles from laboratory benchtops to in vitro and in vivo applications. Furthermore, perspectives on future trends and developments in this rapidly evolving domain are provided.
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Affiliation(s)
- Bahareh Rezaei
- Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX, 79409, United States
| | - Asma Harun
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX, 79409, United States
- Texas Center for Comparative Cancer Research (TC3R), Amarillo, Texas, 79106, United States
| | - Xian Wu
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, United States
| | - Poornima Ramesh Iyer
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, United States
| | - Shahriar Mostufa
- Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX, 79409, United States
| | - Stefano Ciannella
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX, 79409, United States
| | | | - Jeffrey Chalmers
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, United States
| | - Indrajit Srivastava
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX, 79409, United States
- Texas Center for Comparative Cancer Research (TC3R), Amarillo, Texas, 79106, United States
| | - Jenifer Gómez-Pastora
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX, 79409, United States
| | - Kai Wu
- Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX, 79409, United States
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4
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Li CY, Tian ZQ. Sixty years of electrochemical optical spectroscopy: a retrospective. Chem Soc Rev 2024; 53:3579-3605. [PMID: 38421335 DOI: 10.1039/d3cs00734k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Sixty years ago, Reddy, Devanatan, and Bockris performed the first in situ electrochemical ellipsometry experiment, which ushered in a new era in the study of electrochemistry, using optical spectroscopy. After six decades of development, electrochemical optical spectroscopy, particularly electrochemical vibrational spectroscopy, has advanced from a phase of immaturity with few methods and limited applications to a phase of maturity with excellent substrate generality and significantly improved resolutions. Here, we divide the development of electrochemical optical spectroscopy into four phases, focusing on the proof-of-concept of different electrochemical optical spectroscopy studies, the emergence of plasmonic enhancement-based electrochemical optical spectroscopic (in particular vibrational spectroscopic) methods, the realization of electrochemical vibrational spectroscopy on well-defined surfaces, and the efforts to achieve operando spectroelectrochemical applications. Finally, we discuss the future development trend of electrochemical optical spectroscopy, as well as examples of new methodology and research paradigms for operando spectroelectrochemistry.
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Affiliation(s)
- Chao-Yu Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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Pumford A, White RJ. Controlling the Collision Type and Frequency of Single Pt Nanoparticles at Chemically Modified Gold Electrodes. Anal Chem 2024; 96:4800-4808. [PMID: 38470344 DOI: 10.1021/acs.analchem.3c04668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Studying the electrochemical response of single nanoparticles at an electrode surface gives insight into the dynamic and stochastic processes that occur at the electrode interface. Herein, we investigated single platinum nanoparticle collision dynamics and type (elastic vs inelastic) at gold electrode surfaces modified with self-assembled monolayers (SAMs) of varying terminal chemistries. Collision events are measured via the faradaic current from catalytic reactions at the Pt surface. By changing the terminal, solution-facing group of a thiolate monolayer, we observed the effect of hydrophobicity at the solution-electrode interface on single-particle collisions by employing either a hydrophobic -CH3 terminal group (1-hexanethiol), a hydrophilic -OH terminal group (6-mercaptohexanol), or an equimolar mixture of the two. Changes in the terminal group lead to alterations in collision-induced current magnitude, collisional frequency, and the distinct shape of the collision event current transient. The effects of the terminal group of the SAM were probed by measuring quantitative differences in the events monitored through both the hydrogen evolution reaction (HER) and hydrazine oxidation. In both cases, a platinum nanoparticle (PtNP) favors adsorption to bare and hydrophilic surfaces but demonstrates elastic collision behavior when it collides with a hydrophobic surface. In the case of a mixed monolayer, distinct characteristics of hydrophobic and hydrophilic surfaces are observed. We report how single nanoparticle collisions can reveal nanoscale surface heterogeneity and can be used to manipulate the nature of single-particle interactions on an electrode surface by functionalized self-assembled monolayers.
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Affiliation(s)
- Audrey Pumford
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Ryan J White
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
- Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, Ohio 45221, United States
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6
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Wang H, Yin F, Li L, Li M, Fang Z, Sun C, Li B, Shi J, Li J, Wang L, Song S, Zuo X, Liu X, Fan C. Twisted DNA Origami-Based Chiral Monolayers for Spin Filtering. J Am Chem Soc 2024; 146:5883-5893. [PMID: 38408317 DOI: 10.1021/jacs.3c11566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
DNA monolayers with inherent chirality play a pivotal role across various domains including biosensors, DNA chips, and bioelectronics. Nonetheless, conventional DNA chiral monolayers, typically constructed from single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA), often lack structural orderliness and design flexibility at the interface. Structural DNA nanotechnology has emerged as a promising solution to tackle these challenges. In this study, we present a strategy for crafting highly adaptable twisted DNA origami-based chiral monolayers. These structures exhibit distinct interfacial assembly characteristics and effectively mitigate the structural disorder of dsDNA monolayers, which is constrained by a limited persistence length of ∼50 nm of dsDNA. We highlight the spin-filtering capabilities of seven representative DNA origami-based chiral monolayers, demonstrating a maximal one-order-of-magnitude increase in spin-filtering efficiency per unit area compared with conventional dsDNA chiral monolayers. Intriguingly, our findings reveal that the higher-order tertiary chiral structure of twisted DNA origami further enhances the spin-filtering efficiency. This work paves the way for the rational design of DNA chiral monolayers.
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Affiliation(s)
- Haozhi Wang
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fangfei Yin
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lingyun Li
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Mingqiang Li
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zheng Fang
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chenyun Sun
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bochen Li
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiye Shi
- CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Jiang Li
- The Interdisciplinary Research Center, Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- Institute of Materiobiology, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Lihua Wang
- CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- The Interdisciplinary Research Center, Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Shiping Song
- CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- The Interdisciplinary Research Center, Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Xiaolei Zuo
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaoguo Liu
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
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7
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Liu J, Chen C, Lu J, Wang Y, Zhai J, Zhao H, Lu N. Template-confined assembly of Ag nanocubes: An approach to fabricate SERS substrate with good performance. Talanta 2024; 269:125442. [PMID: 38029608 DOI: 10.1016/j.talanta.2023.125442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/15/2023] [Accepted: 11/18/2023] [Indexed: 12/01/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is an important analytical technique. Its detection sensitivity and reproducibility depend on the density and distribution of SERS hotspots. Self-assembly is an efficient method to produce of SERS substrates due to its easy accessibility. However, the assembled defects can hardly be avoided on large area, which could lower the density and uniformity of the hotspots, leading to poor SERS performance. Herein, we report a method to reduce the defects by taking a patterned substrate as template to confine the assembly of Ag nanocubes. The template was prepared based on the combination of photo lithography and self-assembly. Confined by the template, the Ag nanocubes were assembled closely in each dots of the pattern. The limit of detection (LOD) is down to 3.42 × 10-17 M and the enhanced factor (EF) is up to 3.44 × 1010 on the prepared substrate for detecting rhodamine 6G (R6G). In addition, the relative standard deviation (RSD) of the different substrates is 8.75 %. The assembled Ag nanocubes exhibits high sensitivity and reproducibility as SERS substrate, which are contributed by the formation of high-density and uniform hotspots. The prepared substrate can be used for detecting trace amounts of melamine in milk with LOD of 2.06 × 10-7 M and RSD of 6.91 %, so the substrate is applicable for analyzing various analytes.
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Affiliation(s)
- Jiaqi Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Chunning Chen
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Jiaxin Lu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Yalei Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Jingtong Zhai
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Hongkun Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Nan Lu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, PR China.
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Geladari O, Haizmann P, Maier A, Strienz M, Eberle M, Scheele M, Peisert H, Schnepf A, Chassé T, Braun K, Meixner AJ. Direct laser induced writing of high precision gold nanosphere SERS patterns. NANOSCALE ADVANCES 2024; 6:1213-1217. [PMID: 38356631 PMCID: PMC10863701 DOI: 10.1039/d3na00855j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 01/22/2024] [Indexed: 02/16/2024]
Abstract
The high sensitivity and molecular fingerprint capability of Surface-Enhanced Raman Spectroscopy (SERS) have lead to a wide variety of applications ranging from classical physics, chemistry over biology to medicine. Equally, there are numerous methods to fabricate samples owing to the desired properties and to create the localized surface plasmon resonances (LSPRS). However, for many applications the LSPRs must be specifically localized on micrometer sized areas and multiple steps of lithography are needed to achieve the desired substrates. Here we present a fast and reliable direct laser induced writing (DIW) method to produce SERS substrates with active areas of interest in any desired size and shape in the micrometer regime. Afterwards, the SERS substrates have been functionalized with phthalocyanines. The DIW fabricated samples realize sub-monolayer sensitivity and an almost uniform enhancement over the entire area, which make this production method suitable for many sensing applications.
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Affiliation(s)
- Olympia Geladari
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Philipp Haizmann
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
| | - Andre Maier
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Markus Strienz
- Institut für Anorganische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
| | - Martin Eberle
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
| | - Marcus Scheele
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Heiko Peisert
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Andreas Schnepf
- Institut für Anorganische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
| | - Thomas Chassé
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Kai Braun
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Alfred J Meixner
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
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Yan H, Wu L, Wang J, Zheng Y, Zhao F, Bai Q, Hu H, Liang H, Niu X. Target-triggered dual signal amplification based on HCR-enhanced nanozyme activity for the sensitive visual detection of Escherichia coli. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:496-502. [PMID: 38078483 DOI: 10.1039/d3ay01824e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
The detection of foodborne pathogens is crucial for food hygiene regulation and disease diagnosis. Colorimetry has become one of the main analytical methods in studying foodborne pathogens due to its advantages of visualization, low cost, simple operation, and no complex instrument. However, the low sensitivity limits its applications in early identification and on-site detection for trace analytes. In order to overcome such a limitation, herein we propose a joint strategy featuring dual signal amplification based on the hybridization chain reaction (HCR) and DNA-enhanced peroxidase-like activity of gold nanoparticles (AuNPs) for the sensitive visual detection of Escherichia coli. Target bacteria bound specifically to the aptamer domain in the capture hairpin probe, exposing the trigger domain for HCR and forming the extended double-stranded DNA (dsDNA) structures. The peroxidase-like catalytic capacity of AuNPs can be enhanced significantly by dsDNAs with the sticky ends of dsDNAs being adsorbed on AuNPs and the rigidity of dsDNAs causing the spatial regulation of AuNP concentration. The intensity of the enhancement was linearly related to the number of target bacteria. With the above strategy, the detection limit of our colorimetric method for Escherichia coli was down to 28 CFU mL-1 within a short analytical time (50 min). This study provides a new perspective for the sensitive and visual detection of early bacterial contamination in foods.
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Affiliation(s)
- Hangli Yan
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China.
| | - Linghao Wu
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China.
| | - Jingyu Wang
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China.
| | - Yi Zheng
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China.
| | - Fengxia Zhao
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China.
| | - Qinqin Bai
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China.
| | - Hongmei Hu
- Hengyang Center for Disease Control and Prevention, Hengyang 421001, China
| | - Hao Liang
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China.
| | - Xiangheng Niu
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China.
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10
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Trinh HD, Kim S, Yun S, Huynh LTM, Yoon S. Combinatorial Approach to Find Nanoparticle Assemblies with Maximum Surface-Enhanced Raman Scattering. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1805-1814. [PMID: 38001021 DOI: 10.1021/acsami.3c14487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2023]
Abstract
Plasmonic nanoparticles exhibit unique properties that distinguish them from other nanomaterials, including vibrant visible colors, the generation of local electric fields, the production of hot charge carriers, and localized heat emission. These properties are particularly enhanced in the narrow nanogaps formed between nanostructures. Therefore, creating nanogaps in a controlled fashion is the key to achieving a fundamental understanding of plasmonic phenomena originating from the nanogaps and developing advanced nanomaterials with enhanced performance for diverse applications. One of the most effective approaches to creating nanogaps is to assemble individual nanoparticles into a clustered structure. In this study, we present a fast, facile, and highly efficient method for preparing core@satellite (CS) nanoassembly structures using gold nanoparticles of various shapes and sizes, including nanospheres, nanocubes (AuNCs), nanorods, and nanotriangular prisms. The sequential assembly of these building blocks on glass substrates allows us to obtain CS nanostructures with a 100% yield within 4 h. Using 9 different building blocks, we successfully produce 16 distinct CS nanoassemblies and systematically investigate the combinations to search for the highest Raman enhancement. We find that the surface-enhanced Raman scattering (SERS) intensity of AuNC@AuNC CS nanoassemblies is 2 orders of magnitude larger than that of other CS nanoassemblies. Theoretical analyses reveal that the intensity and distribution of the electric field induced in the nanogaps by plasmon excitation, as well as the number of molecules in the interfacial region, collectively contribute to the unprecedentedly large SERS enhancement observed for AuNC@AuNC. This study not only presents a novel assembly method that can be extended to produce many other nanoassemblies but also identifies a highly promising SERS material for sensing and diagnostics through a systematic search process.
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Affiliation(s)
- Hoa Duc Trinh
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
| | - Seokheon Kim
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
| | - Seokhyun Yun
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
| | - Ly Thi Minh Huynh
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
| | - Sangwoon Yoon
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
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11
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Lo Faro MJ, Ielo I, Morganti D, Leonardi AA, Conoci S, Fazio B, De Luca G, Irrera A. Alkoxysilane-Mediated Decoration of Si Nanowires Vertical Arrays with Au Nanoparticles as Improved SERS-Active Platforms. Int J Mol Sci 2023; 24:16685. [PMID: 38069007 PMCID: PMC10706837 DOI: 10.3390/ijms242316685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/15/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
The search for improved transducers to fabricate better-performing (bio)sensors is a challenging but rewarding endeavor aiming to better diagnose and treat diseases. In this paper, we report on the decoration of a dense vertical array of ultrathin silicon nanowires (Si NWs), produced by metal-assisted chemical etching, with 20 nm gold nanoparticles (Au NPs) for surface-enhanced Raman scattering (SERS) applications. To optimize the production of a uniform 3D SERS active platform, we tested different Si NW surface functionalizations with various alkoxysilanes before Au decoration. Scanning electron microscopy investigations confirm that Au NPs decorate both bare and (3-glycidiloxypropyl)trimethoxysilane (GPTMS)-modified Si NWs with a high surface coverage uniformity. The SERS response of the decorated NWs was probed using a model dye system (methylene blue; MB) at 633 and 785 nm excitation wavelengths. The GPTMS-modified NWs present the highest enhancements of 2.9 and 2.6 for the 450 cm-1 and 1625 cm-1 peaks under 785 nm excitation and of 10.8 and 5.3 for the 450 cm-1 and 1625 cm-1 peaks under 633 nm excitation. These results demonstrate the perspective role of Si NWs decorated with Au NPs as a low-cost 3D SERS platform.
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Affiliation(s)
- Maria Josè Lo Faro
- Dipartimento di Fisica e Astronomia “Ettore Majorana”, Università degli Studi di Catania, 95123 Catania, Italy;
- Istituto per la Microelettronica e Microsistemi, CNR-IMM Catania Università, 95121 Catania, Italy
| | - Ileana Ielo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche, ed Ambientali, Università degli Studi di Messina, 98166 Messina, Italy; (I.I.); (D.M.); (S.C.)
| | - Dario Morganti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche, ed Ambientali, Università degli Studi di Messina, 98166 Messina, Italy; (I.I.); (D.M.); (S.C.)
| | | | - Sabrina Conoci
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche, ed Ambientali, Università degli Studi di Messina, 98166 Messina, Italy; (I.I.); (D.M.); (S.C.)
- URT LAB SENS CNR and Beyond Nano, CNR, 98166 Messina, Italy; (A.A.L.); (B.F.)
- Istituto per la Microelettronica e Microsistemi, CNR-IMM Zona Industriale, 95121 Catania, Italy
| | - Barbara Fazio
- URT LAB SENS CNR and Beyond Nano, CNR, 98166 Messina, Italy; (A.A.L.); (B.F.)
| | - Giovanna De Luca
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche, ed Ambientali, Università degli Studi di Messina, 98166 Messina, Italy; (I.I.); (D.M.); (S.C.)
- URT LAB SENS CNR and Beyond Nano, CNR, 98166 Messina, Italy; (A.A.L.); (B.F.)
| | - Alessia Irrera
- URT LAB SENS CNR and Beyond Nano, CNR, 98166 Messina, Italy; (A.A.L.); (B.F.)
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12
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Yun S, Yoon S. Mode-Selective Plasmon Coupling between Au Nanorods and Au Nanospheres. J Phys Chem Lett 2023; 14:10225-10232. [PMID: 37931252 DOI: 10.1021/acs.jpclett.3c02555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Plasmons play a central role in the properties of gold nanoparticles (AuNPs). Plasmons in a AuNP are influenced by neighboring ones, resulting in hybridized bonding dipole modes and red-shifted resonance peaks in the extinction spectra. Previous studies have mainly focused on plasmon coupling among spherical AuNPs (AuNSs). Here, we explore plasmonic interactions between AuNSs and anisotropic gold nanorods (AuNRs), which have longitudinal (LO) and transverse (TR) plasmon modes. We successfully assemble AuNSs around AuNRs ("AuNR@AuNS"), observing shifts in both the LO and TR modes in the extinction spectra due to directional coupling. Selectively binding AuNSs to the ends of AuNRs ("AuNR═AuNS") leads to predominant plasmon coupling along the LO direction. Our simulation studies reveal that exclusive LO or TR coupling occurs only when AuNSs attach to the center of either the end or the side of AuNRs. This study provides a valuable guideline for selectively exciting plasmons in desired nanogaps when multiple nanogaps are present.
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Affiliation(s)
- Seokhyun Yun
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Seoul 06974, Korea
| | - Sangwoon Yoon
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Seoul 06974, Korea
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13
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Malik U, Hubesch R, Koley P, Mazur M, Mehla S, Butti SK, Brandt M, Selvakannan PR, Bhargava S. Surface functionalized 3D printed metal structures as next generation recyclable SERS substrates. Chem Commun (Camb) 2023; 59:13406-13420. [PMID: 37850470 DOI: 10.1039/d3cc04154a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Combining the design flexibility and rapid prototyping capabilities of additive manufacturing with photocatalytic and plasmonic functionalities is promising for the development of next-generation SERS applications such as point of care diagnostics and in situ monitoring of chemical reactions in fuels and chemical processing. Laser powder bed fusion (LPBF) is a well-matured additive manufacturing technique which generates metallic structures through localised melting and joining of metal powders using a laser. LPBF reduces material wastage during manufacturing, is applicable to a wide range of metals and alloys, and allows printing of complex internal structures. This feature article elaborates the use of soot templating, chemical vapour deposition and electroless plating techniques for grafting plasmonic and semiconductor nanoparticles on the surface of LPBF manufactured metallic substrates. The capability to fabricate different types of intricate metallic lattices using additive manufacturing is demonstrated and technical challenges in their adequate functionalization are elaborated. The developed methodology allows tailoring of the substrate structure, composition, morphology, plasmonic and photocatalytic activities and thus unveils a new class of recyclable SERS substrates.
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Affiliation(s)
- Uzma Malik
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, 3001 Victoria, Australia.
| | - Roxanne Hubesch
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, 3001 Victoria, Australia.
| | - Paramita Koley
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, 3001 Victoria, Australia.
| | - Maciej Mazur
- Centre for Additive Manufacturing, School of Engineering, RMIT University, 3001 Victoria, Australia
| | - Sunil Mehla
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, 3001 Victoria, Australia.
| | - Sai Kishore Butti
- Chemical Engineering and Process Technology Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Milan Brandt
- Centre for Additive Manufacturing, School of Engineering, RMIT University, 3001 Victoria, Australia
| | - P R Selvakannan
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, 3001 Victoria, Australia.
| | - Suresh Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, 3001 Victoria, Australia.
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14
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Wu Y, Yu Q, Joung Y, Jeon CS, Lee S, Pyun SH, Joo SW, Chen L, Choo J. Highly Uniform Self-Assembly of Gold Nanoparticles by Butanol-Induced Dehydration and Its SERS Applications in SARS-CoV-2 Detection. Anal Chem 2023; 95:12710-12718. [PMID: 37594054 DOI: 10.1021/acs.analchem.3c01348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
We report the development of a reproducible and highly sensitive surface-enhanced Raman scattering (SERS) substrate using a butanol-induced self-assembly of gold nanoparticles (AuNPs) and its application as a rapid diagnostic platform for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The butanol-induced self-assembly process was used to generate a uniform assembly of AuNPs, with multiple hotspots, to achieve high reproducibility. When an aqueous droplet containing AuNPs and target DNAs was dropped onto a butanol droplet, butanol-induced dehydration occurred, enriching the target DNAs around the AuNPs and increasing the loading density of the DNAs on the AuNP surface. The SERS substrate was evaluated by using Raman spectroscopy, which showed strong electromagnetic enhancement of the Raman signals. The substrate was then tested for the detection of SARS-CoV-2 using SERS, and a very low limit of detection (LoD) of 3.1 × 10-15 M was obtained. This provides sufficient sensitivity for the SARS-CoV-2 screening assay, and the diagnostic time is significantly reduced as no thermocycling steps are required. This study demonstrates a method for the butanol-induced self-assembly of AuNPs and its application as a highly sensitive and reproducible SERS substrate for the rapid detection of SARS-CoV-2. The results suggest the potential of this approach for developing rapid diagnostic platforms for other biomolecules and infectious diseases.
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Affiliation(s)
- Yixuan Wu
- Department of Chemistry, Chung-Ang University, Seoul 06974, South Korea
| | - Qian Yu
- Department of Chemistry, Chung-Ang University, Seoul 06974, South Korea
| | - Younju Joung
- Department of Chemistry, Chung-Ang University, Seoul 06974, South Korea
| | - Chang Su Jeon
- R&D Center, Speclipse Inc., Seongnam 13461, South Korea
| | - Seunghyun Lee
- Department of Chemical and Molecular Engineering, Hanyang University ERICA, Ansan 15588, South Korea
| | | | - Sang-Woo Joo
- Department of Chemistry, Soongsil University, Seoul 06978, South Korea
| | - Lingxin Chen
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Jaebum Choo
- Department of Chemistry, Chung-Ang University, Seoul 06974, South Korea
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15
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Ko TS, Lin ET, Ho YT, Deng CA. The Role of GaN in the Heterostructure WS 2/GaN for SERS Applications. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3054. [PMID: 37109889 PMCID: PMC10143599 DOI: 10.3390/ma16083054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
In the application of WS2 as a surface-enhanced Raman scattering (SERS) substrate, enhancing the charge transfer (CT) opportunity between WS2 and analyte is an important issue for SERS efficiency. In this study, we deposited few-layer WS2 (2-3 layers) on GaN and sapphire substrates with different bandgap characteristics to form heterojunctions using a chemical vapor deposition. Compared with sapphire, we found that using GaN as a substrate for WS2 can effectively enhance the SERS signal, with an enhancement factor of 6.45 × 104 and a limit of detection of 5 × 10-6 M for probe molecule Rhodamine 6G according to SERS measurement. Analysis of Raman, Raman mapping, atomic force microscopy, and SERS mechanism revealed that The SERS efficiency increased despite the lower quality of the WS2 films on GaN compared to those on sapphire, as a result of the increased number of transition pathways present in the interface between WS2 and GaN. These carrier transition pathways could increase the opportunity for CT, thus enhancing the SERS signal. The WS2/GaN heterostructure proposed in this study can serve as a reference for enhancing SERS efficiency.
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Affiliation(s)
- Tsung-Shine Ko
- Department of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua 50074, Taiwan; (E.-T.L.); (C.-A.D.)
| | - En-Ting Lin
- Department of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua 50074, Taiwan; (E.-T.L.); (C.-A.D.)
| | - Yen-Teng Ho
- International College of Semiconductor Technology, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan;
| | - Chen-An Deng
- Department of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua 50074, Taiwan; (E.-T.L.); (C.-A.D.)
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16
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Zhou P, Qiao X, Milan DC, Higgins SJ, Vezzoli A, Nichols RJ. Enhanced charge transport across molecule-nanoparticle-molecule sandwiches. Phys Chem Chem Phys 2023; 25:7176-7183. [PMID: 36810584 DOI: 10.1039/d2cp05525b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
The electrical properties of large area molecular devices consisting of gold nanoparticles (GNPs) sandwiched between a double layer of alkanedithiol linkers have been examined. These devices have been fabricated by a facile bottom-up assembly in which an alkanedithiol monolayer is first self-assembled on an underlying gold substrate followed by nanoparticle adsorption and then finally assembly of the top alkanedithiol layer. These devices are then sandwiched between the bottom gold substrates and a top eGaIn probe contact and current-voltage (I-V) curves recorded. Devices have been fabricated with 1,5-pentanedithiol, 1,6-hexanedithiol, 1,8-octanedithiol and 1,10-decanedithiol linkers. In all cases the electrical conductance of the double SAM junctions with GNPs is higher than the corresponding and much thinner single alkanedithiol SAM. Competing models for this enhanced conductance are discussed and it is suggested to have a topological origin arising from how the devices assemble or structure during the fabrication, which gives more efficient cross device electron transport pathways without the GNPs producing short circuits.
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Affiliation(s)
- P Zhou
- Yangzhou Polytechnic Institute, No. 199, Huayang West Road, Yangzhou City, Jiangsu Province, China.,Department of Chemistry, University of Liverpool, Crown St, Liverpool, L69 7ZD, UK.
| | - X Qiao
- Department of Chemistry, University of Liverpool, Crown St, Liverpool, L69 7ZD, UK.
| | - D C Milan
- Department of Chemistry, University of Liverpool, Crown St, Liverpool, L69 7ZD, UK.
| | - S J Higgins
- Department of Chemistry, University of Liverpool, Crown St, Liverpool, L69 7ZD, UK.
| | - A Vezzoli
- Department of Chemistry, University of Liverpool, Crown St, Liverpool, L69 7ZD, UK.
| | - R J Nichols
- Department of Chemistry, University of Liverpool, Crown St, Liverpool, L69 7ZD, UK.
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17
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Zhou H, Kneipp J. Potential Regulation for Surface-Enhanced Raman Scattering Detection and Identification of Carotenoids. Anal Chem 2023; 95:3363-3370. [PMID: 36729376 DOI: 10.1021/acs.analchem.2c04658] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is often impaired by the limited affinity of molecules to plasmonic substrates. Here, we use carbon fiber microelectrodes modified with silver nanoparticles as a plasmonic microsubstrate with tunable affinity for enrichment and molecular identification by SERS. The silver nanoparticles self-assemble by electrostatic interaction with diamine molecules that are electrochemically grafted onto the surface of the microelectrodes. β-carotene and trans-β-Apo-8'-carotenal, producing similar resonant SERS spectra, are employed as model molecules to study the effect of electroenrichment and SERS screening for different electrode potentials. The data show that at a characteristic electrode potential, the low affinity of polyene chains without hydrophilic groups to the substrate can be overcome. Different potentials were applied to recognize the two types of carotenoids by their typical SERS signal, and the applicability of this strategy was further confirmed in the environment of a real cell culture. The results indicate that by regulating the potential, carotenoid molecules with a similar molecular structure can be selectively quantified and identified by SERS. The developed SERS-active microelectrode is expected to help the development of portable, miniaturized point-of-care diagnostic SERS sensors.
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Affiliation(s)
- Haifeng Zhou
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Janina Kneipp
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
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18
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Anderson MS. Concurrent surface enhanced infrared and Raman spectroscopy with single molecule sensitivity. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2023; 94:025103. [PMID: 36859062 DOI: 10.1063/5.0136908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Surface enhanced infrared absorption (SEIRA) and surface enhanced Raman Spectroscopy (SERS) were simultaneously measured from the same location on plasmonically active substrates. The spectra were acquired using an optical photothermal infrared spectrometer coupled with a Raman spectrometer. The sensitivity of this approach enables exceptionally small quantities of molecules to be interrogated while providing complementary information from both infrared and Raman spectroscopy. This arrangement provides additional improvement of SEIRA through the enhancement of both the optical photothermal detector signal and the infrared absorption. The plasmonic substrates tested were silver nanospheres and a gold coated atomic force microscope tip. The concurrent acquisition of SEIRA and SERS is further demonstrated by nano-sampling material onto an atomic force microscope tip. The analytes, Buckminsterfullerene and 1,2-bis(4-pyridyl) ethylene, were analyzed individually and as mixtures. The concurrent acquisition of SERIA and SERS is a unique approach. It has general applications in trace surface analysis and for the analysis of returned planetary samples.
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Affiliation(s)
- Mark S Anderson
- Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, California 91109, USA
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19
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Verma H, Aggarwal M, Kumar S. Opportunities and Significance of Nanoparticle–DNA Binding in Medical Biotechnology: A Review. Cureus 2022; 14:e31005. [DOI: 10.7759/cureus.31005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022] Open
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20
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Li J, Li R, Xu Y, Xue X, Chen X, Chui HC. The Wavelength-Dependent SERS Template Based on a Nanopillar Array. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7446. [PMID: 36363038 PMCID: PMC9657544 DOI: 10.3390/ma15217446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/02/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) can be regarded as a powerful tool for probing chemical molecules by effectively enhancing Raman signals. However, the enhancement factors depend on the SERS template, the probed molecular structures, and the excitation laser wavelength. Herein, we proposed a simple and easily fabricated nanostructured template for SERS and analyzed the wavelength-dependent factors. Three types of golden nanopillar arrays on silicon wafers were designed and manufactured. The SERS signals of the Rhodamine 6G (R6G) molecules were extracted. Three laser sources, a blue 17 mW 458 nm diode laser, a green 20 mW 532 nm laser, and a red 6 mW 633 nm laser, were employed as the excitation laser sources. The 458 nm laser was located far from the resonate spectrum of R6G. The optical intensity distributions for the different SERS templates excited by three laser beams were also simulated. The enhancement factors (EFs) of R6G on the three nanostructured templates were measured and compared. The photoluminescence spectrum of the nanostructured templates and SERS signals of R6G were also measured. In addition, the experimental results concerned optical simulations. The analysis tool that was used was a convolution profile of multiple Lorentzian line shapes with a Gaussian profile. It is helpful to understand the SERS signals when the excitation laser wavelength is located out of the resonance region of molecules. It can also provide a new design approach to fabricate an SERS Template with a nanopillar array for different excitation wavelengths.
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Affiliation(s)
- Jiayi Li
- School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, China
| | - Rui Li
- College of Physics, Dalian University of Technology, Dalian 116024, China
| | - Ying Xu
- School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, China
| | - Xiaojun Xue
- PipeChina Group, Beijing Pipe Co., Ltd., Beijing 100020, China
| | - Xiaoming Chen
- School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, China
| | - Hsiang-Chen Chui
- School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, China
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
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Zhao L, Sidnawi B, Fan J, Chen R, Scully T, Dietrich S, Gao W, Wu Q, Li B. Wafer-Scale Full-Coverage Self-Limiting Assembly of Particles on Flexible Substrates. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46095-46102. [PMID: 36174021 DOI: 10.1021/acsami.2c14149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Self-limiting assembly of particles represents the state-of-the-art controllability in nanomanufacturing processes where the assembly stops at a designated stage, providing a desirable platform for applications requiring delicate thickness control such as optics, electronics, and catalytic systems. Most successes in self-limiting assembly are limited to self-assembled monolayers (SAMs) of small molecules on inorganic, chemically homogeneous rigid substrates (e.g., Au and SiO2) through surface-interaction mechanisms. Similar mechanisms, however, cannot achieve a uniform assembly of particles on flexible polymer substrates. The complex configurations and conformations of polymer chains create a surface with nonuniform distributions of chemical groups and phases. In addition, most assembly mechanisms require good solvent wettability, where many desirable but hard-to-wet particles and polymer substrates are excluded. Here, we demonstrate a collision-based self-limiting assembly (CSA) to achieve wafer-scale, full-coverage, close-packed monolayers of hydrophobic particles on hydrophobic polymer substrates in aqueous solutions. The kinetic assembly and self-limiting processes are facilitated and controlled by the combined acoustic and shear fields. We envision many applications in functional coatings and showcase their feasibility in structural coloration. Importantly, such functional coatings can be repaired using CSA, and both particles and polymer substrate can be recycled.
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Affiliation(s)
- Liang Zhao
- Department of Mechanical Engineering, Villanova University, Villanova, Pennsylvania19085, United States
- Hybrid Nano-Architectures and Advanced Manufacturing Laboratory, Villanova University, Villanova, Pennsylvania19085, United States
| | - Bchara Sidnawi
- Department of Mechanical Engineering, Villanova University, Villanova, Pennsylvania19085, United States
- Cellular Biomechanics and Sports Science Laboratory, Villanova University, Villanova, Pennsylvania19085, United States
| | - Jichao Fan
- Department of Electrical and Computer Engineering, The University of Utah, Salt Lake City, Utah84112, United States
| | - Ruiyang Chen
- Department of Electrical and Computer Engineering, The University of Utah, Salt Lake City, Utah84112, United States
| | - Thomas Scully
- Department of Mechanical Engineering, Villanova University, Villanova, Pennsylvania19085, United States
- Hybrid Nano-Architectures and Advanced Manufacturing Laboratory, Villanova University, Villanova, Pennsylvania19085, United States
| | - Scott Dietrich
- Department of Physics, Villanova University, Villanova, Pennsylvania19085, United States
| | - Weilu Gao
- Department of Electrical and Computer Engineering, The University of Utah, Salt Lake City, Utah84112, United States
| | - Qianhong Wu
- Department of Mechanical Engineering, Villanova University, Villanova, Pennsylvania19085, United States
- Cellular Biomechanics and Sports Science Laboratory, Villanova University, Villanova, Pennsylvania19085, United States
| | - Bo Li
- Department of Mechanical Engineering, Villanova University, Villanova, Pennsylvania19085, United States
- Hybrid Nano-Architectures and Advanced Manufacturing Laboratory, Villanova University, Villanova, Pennsylvania19085, United States
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22
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Li J, Khalenkow D, Volodkin D, Lapanje A, Skirtach AG, Parakhonskiy BV. Surface enhanced Raman scattering (SERS)-active bacterial detection by Layer-by-Layer (LbL) assembly all-nanoparticle microcapsules. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Abstract
Surface-enhanced Raman spectroscopy (SERS) is a vibrational spectroscopy technique that enables specific identification of target analytes with sensitivity down to the single-molecule level by harnessing metal nanoparticles and nanostructures. Excitation of localized surface plasmon resonance of a nanostructured surface and the associated huge local electric field enhancement lie at the heart of SERS, and things will become better if strong chemical enhancement is also available simultaneously. Thus, the precise control of surface characteristics of enhancing substrates plays a key role in broadening the scope of SERS for scientific purposes and developing SERS into a routine analytical tool. In this review, the development of SERS substrates is outlined with some milestones in the nearly half-century history of SERS. In particular, these substrates are classified into zero-dimensional, one-dimensional, two-dimensional, and three-dimensional substrates according to their geometric dimension. We show that, in each category of SERS substrates, design upon the geometric and composite configuration can be made to achieve an optimized enhancement factor for the Raman signal. We also show that the temporal dimension can be incorporated into SERS by applying femtosecond pulse laser technology, so that the SERS technique can be used not only to identify the chemical structure of molecules but also to uncover the ultrafast dynamics of molecular structural changes. By adopting SERS substrates with the power of four-dimensional spatiotemporal control and design, the ultimate goal of probing the single-molecule chemical structural changes in the femtosecond time scale, watching the chemical reactions in four dimensions, and visualizing the elementary reaction steps in chemistry might be realized in the near future.
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Affiliation(s)
| | | | - Hai-Yao Yang
- School of Physics and Optoelectronics, South China University of Technology, Wushan Road 381, Guangzhou 510641, China
| | - Zhiyuan Li
- School of Physics and Optoelectronics, South China University of Technology, Wushan Road 381, Guangzhou 510641, China
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Ko TS, Kuo KY. Using a Au/pitted a-plane GaN substrate to aggregate polar molecules for highly efficient surface-enhanced Raman scattering. J Chem Phys 2022; 157:114702. [DOI: 10.1063/5.0115547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In a search for efficient surface-enhanced Raman scattering (SERS) substrates is still a challenge. In this study we used metal-organic chemical vapor deposition to directly grow a pitted a-plane GaN thin film, subsequently covered by a thin Au layer ( ca. 25 nm), for use as a SERS substrate, without the need for any additional etching or lithography processes. The SERS substrate containing these micrometer-sized pits provided a low limit of detection ( ca. 10-9 M) for rhodamine 6G (R6G), with a high enhancement factor (4.27 ´ 108) relative to normal Raman spectroscopy. Furthermore, Raman spectral mapping indicated that most of the R6G molecules were concentrated in the pits, enhancing the localization of the probe molecules for further analysis. The same phenomenon was still effective for polar methylene blue molecules but unclear for nonpolar paraffin molecules. The molecular aggregation became more ambiguous upon increasing the thickness of the Au layer, suggesting that the polarity of the Ga and N atoms in the pits was responsible for the efficient aggregation of the polar R6G molecules, potentially beneficial for biomedical detection.
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Affiliation(s)
- Tsung-Shine Ko
- Department of Electronic Engineering, National Changhua University of Education, Taiwan
| | - Kai-Yuan Kuo
- National Changhua University of Education, Taiwan
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25
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Zhang S, Wang L, Wang L, Yu N, Dong Y, Hu J. Combined Antibody Tagged HRP Gold Nanoparticle Probe for Effective PCV2 Screening in Pig Farms. Int J Nanomedicine 2022; 17:3361-3369. [PMID: 35937078 PMCID: PMC9346410 DOI: 10.2147/ijn.s364795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/16/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Porcine circovirus type 2 (PCV2) causes immune repression and intercurrent infections in pigs, resulting in a huge economic loss to the pig breeding industry. Additionally, the spread of PCV2 in pig farms can pollute the living environment of the residents in the farm’s vicinity, which increases the rate of infections. Therefore, rapid and sensitive detection methods are needed for disease prevention and timely environmental cleaning. Methods This research describes a highly sensitive sandwich enzyme-linked immunosorbent assay (ELISA) that utilizes gold nanoparticles (AuNPs) in a functional, specific antibody labeled probe for the detection of PCV2. Due to their high specific surface area and histocompatibility, AuNPs were used as carriers of HRP labeled anti-PCV2 antibodies to amplify the detection signal. Results Compared to conventional sandwich ELISA procedures, this method resulted in higher sensitivity (51-fold) and a shorter assay time with a limit of detection of 195 TCID50/mL. The cross-reactivity assay demonstrated that this assay was PCV2 specific. Conclusion The amplified Ab (HRP) labeled AuNPs probe provides a sensitive analytical approach for the determination of the traces of the PCV2 antigen in early diagnosis.
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Affiliation(s)
- Shouping Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, 453003, People’s Republic of China
| | - Lei Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, 453003, People’s Republic of China
- Correspondence: Lei Wang, Jianhe Hu, College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Eastern HuaLan Avenue, Xinxiang, 453003, People’s Republic of China, Tel +86-373-3040718, Email ;
| | - Lirong Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, 453003, People’s Republic of China
| | - Nan Yu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, 453003, People’s Republic of China
| | - Yongjun Dong
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, 453003, People’s Republic of China
| | - Jianhe Hu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, 453003, People’s Republic of China
- Correspondence: Lei Wang, Jianhe Hu, College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Eastern HuaLan Avenue, Xinxiang, 453003, People’s Republic of China, Tel +86-373-3040718, Email ;
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Charge Transfer in Patterned Bilayer Film of Ag/ZnS Composite by Magnetron Control Sputtering. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123805. [PMID: 35744928 PMCID: PMC9229889 DOI: 10.3390/molecules27123805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/04/2022] [Accepted: 06/10/2022] [Indexed: 11/28/2022]
Abstract
Ordered heterojunction nanocap arrays composed of the bilayer film Ag/ZnS were prepared onto ordered two-dimensional polystyrene bead arrays by magnetron control sputtering, and the surface morphologies were tuned by changing the ZnS thickness. When the ZnS thickness varied from 10 to 30 nm with a Ag thickness of 5 nm, the roughness of the bilayer film Ag/ZnS increased obviously. The UV–VIS spectra showed the shifted LSPR peaks with ZnS thickness, which was attributed to the changes of the electron density as confirmed by Hall effect analysis. SERS observations confirmed the charge transfer process for the varied electromagnetic couplings when the ZnS thickness changed.
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27
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Zhang Z, Lee Y, Haque MF, Leem J, Hsieh EY, Nam S. Plasmonic sensors based on graphene and graphene hybrid materials. NANO CONVERGENCE 2022; 9:28. [PMID: 35695997 PMCID: PMC9192873 DOI: 10.1186/s40580-022-00319-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 05/26/2022] [Indexed: 05/07/2023]
Abstract
The past decade has witnessed a rapid growth of graphene plasmonics and their applications in different fields. Compared with conventional plasmonic materials, graphene enables highly confined plasmons with much longer lifetimes. Moreover, graphene plasmons work in an extended wavelength range, i.e., mid-infrared and terahertz regime, overlapping with the fingerprints of most organic and biomolecules, and have broadened their applications towards plasmonic biological and chemical sensors. In this review, we discuss intrinsic plasmonic properties of graphene and strategies both for tuning graphene plasmons as well as achieving higher performance by integrating graphene with plasmonic nanostructures. Next, we survey applications of graphene and graphene-hybrid materials in biosensors, chemical sensors, optical sensors, and sensors in other fields. Lastly, we conclude this review by providing a brief outlook and challenges of the field. Through this review, we aim to provide an overall picture of graphene plasmonic sensing and to suggest future trends of development of graphene plasmonics.
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Affiliation(s)
- Zhichao Zhang
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Yeageun Lee
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Md Farhadul Haque
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Juyoung Leem
- Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA.
- TomKat Center for Sustainable Energy, Stanford University, Stanford, CA, 94305, USA.
| | - Ezekiel Y Hsieh
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - SungWoo Nam
- Department of Mechanical and Aerospace Engineering, University of California Irvine, Irvine, CA, 92697, USA.
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28
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Chauhan P, Bhargava A, Kumari R, Ratre P, Tiwari R, Kumar Srivastava R, Yu Goryacheva I, Kumar Mishra P. Surface-enhanced Raman scattering biosensors for detection of oncomiRs in breast cancer. Drug Discov Today 2022; 27:2121-2136. [PMID: 35460892 DOI: 10.1016/j.drudis.2022.04.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/03/2022] [Accepted: 04/13/2022] [Indexed: 12/16/2022]
Abstract
Surface-enhanced Raman scattering (SERS) has emerged as one of the most promising platforms for various biosensing applications. These sensing systems encompass the advantages of specificity, ultra-high sensitivity, stability, low cost, repeatability, and easy-to-use methods. Moreover, their ability to offer a molecular fingerprint and identify the target analyte at low levels make SERS a promising technique for detecting circulating cancer biomarkers with greater sensitivity and reliability. Among the various circulating biomolecules, oncomiRs are emerging as prominent biomarkers for the early screening of breast cancers (BCs). In this review, we provide a comprehensive understanding of different SERS-based biosensors and their application to identify BC-specific oncomiRs. We also discuss different SERS-based sensing strategies, nano-analytical frameworks, and challenges to be addressed for effective clinical translation.
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Affiliation(s)
- Prachi Chauhan
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Arpit Bhargava
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Roshani Kumari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Pooja Ratre
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Rajnarayan Tiwari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | | | - Irina Yu Goryacheva
- Department of General and Inorganic Chemistry, Saratov State University, Saratov, Russia
| | - Pradyumna Kumar Mishra
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India.
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29
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Terry LR, Sanders S, Potoff RH, Kruel JW, Jain M, Guo H. Applications of surface-enhanced Raman spectroscopy in environmental detection. ANALYTICAL SCIENCE ADVANCES 2022; 3:113-145. [PMID: 38715640 PMCID: PMC10989676 DOI: 10.1002/ansa.202200003] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/18/2022] [Accepted: 02/22/2022] [Indexed: 06/11/2024]
Abstract
As the human population grows, the anthropogenic impacts from various agricultural and industrial processes produce unwanted contaminants in the environment. The accurate, sensitive and rapid detection of such contaminants is vital for human health and safety. Surface-enhanced Raman spectroscopy (SERS) is a valuable analytical tool with wide applications in environmental contaminant monitoring. The aim of this review is to summarize recent advancements within SERS research as it applies to environmental detection, with a focus on research published or accessible from January 2021 through December 2021 including early-access publications. Our goal is to provide a wide breadth of information that can be used to provide background knowledge of the field, as well as inform and encourage further development of SERS techniques in protecting environmental quality and safety. Specifically, we highlight the characteristics of effective SERS nanosubstrates, and explore methods for the SERS detection of inorganic, organic, and biological contaminants including heavy metals, pharmaceuticals, plastic particles, synthetic dyes, pesticides, viruses, bacteria and mycotoxins. We also discuss the current limitations of SERS technologies in environmental detection and propose several avenues for future investigation. We encourage researchers to fill in the identified gaps so that SERS can be implemented in a real-world environment more effectively and efficiently, ultimately providing reliable and timely data to help and make science-based strategies and policies to protect environmental safety and public health.
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Affiliation(s)
- Lynn R. Terry
- Department of ChemistryState University of New York at BinghamtonBinghamtonNew YorkUSA
| | - Sage Sanders
- Department of ChemistryState University of New York at BinghamtonBinghamtonNew YorkUSA
| | - Rebecca H. Potoff
- Department of ChemistryState University of New York at BinghamtonBinghamtonNew YorkUSA
| | - Jacob W. Kruel
- Department of ChemistryState University of New York at BinghamtonBinghamtonNew YorkUSA
| | - Manan Jain
- Department of ChemistryState University of New York at BinghamtonBinghamtonNew YorkUSA
| | - Huiyuan Guo
- Department of ChemistryState University of New York at BinghamtonBinghamtonNew YorkUSA
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30
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Zhao X, Sun D, Yu M, Xu Y, Xie H. Label-free and ultrasensitive SERS detection of pesticide residues using 3D hot-junction of a Raman enhancing montmorillonite/silver nanoparticles nanocomposite. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1134-1139. [PMID: 35224591 DOI: 10.1039/d2ay00090c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Montmorillonite (MMT) coated with roughened noble metal nanoparticles are novel hybrid nanocomposite with a wide range of applications including agriculture, materials science and biomedical engineering. Herein, we developed a hybrid nanocomposite (MMT/AgNPs) based on MMT coated with silver nanoparticles (AgNPs), which can be used as a cost-effective and efficient surface-enhanced Raman spectroscopy (SERS) substrate for the detection of pesticides in fruits and vegetables. MMT itself is negatively charged and can be assembled with positively charged AgNPs through electrostatic interactions. Moreover, MMT has a layered 2D structure that possesses a large surface area, which can load a large number of AgNPs to form more SERS hotspots for the ultrasensitive measurement. SERS performance of the MMT/AgNPs nanocomposite was tested by 5,5'-dithiobis-(2-nitrobenzoic acid) (DTNB) and the substrate can obtain the strongest SERS enhancement effect with the volume ratio of MMT/AgNPs of 1 : 10. These substrates were applied in the measurement of thiram in apples and spinach samples by SERS. Detection limits of pesticide molecules of 5.0 × 10-8 M and 1.0 × 10-7 M in apples and spinach, respectively, were obtained. Most importantly, MMT nanosheets are a robust platform that allowed AgNPs to be evenly and thoroughly distributed and stabilized over the substrate, improving the repeatability and stability of SERS detection. These results reveal that the MMT/AgNPs nanocomposites are suitable substrates for the real-world SERS analysis of pesticide and other contaminants in complex food matrices.
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Affiliation(s)
- Xiaojuan Zhao
- School of Materials Engineering, Xi'an Aeronautical University, Xi'an 710077, China.
| | - Dan Sun
- School of Pharmacy, Nantong University, Nantong, Jiangsu 226001, China
| | - Man Yu
- School of Materials Engineering, Xi'an Aeronautical University, Xi'an 710077, China.
| | - Yan Xu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Hui Xie
- School of Materials Engineering, Xi'an Aeronautical University, Xi'an 710077, China.
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Azhati A, Zhu H, Ouyang T, He T, Zeng Y, Wu P, Jiang J, Peng H, Che S. DNA-Assisted Creation of a Library of Ultrasmall Multimetal/Metal Oxide Nanoparticles Confined in Silica. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107123. [PMID: 35174966 DOI: 10.1002/smll.202107123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/05/2022] [Indexed: 06/14/2023]
Abstract
Supported ultrasmall metal/metal oxide nanoparticles (UMNPs) with sizes in the range of 1-5 nm exhibit unique properties in sensing, catalysis, biomedicine, etc. However, the metal-support and metal-metal precursor interactions were not as well controlled to stabilize the metal nanoparticles on/in the supports. Herein, DNA is chosen as a template and a ligand for the silica-supported UMNPs, taking full use of its binding ability to metal ions via either electrostatic or coordination interactions. UMNPs thus are highly dispersed in silica via self-assembly of DNA and DNA-metal ion interactions with the assistance of a co-structural directing agent (CSDA). A large number of metal ions are easily retained in the mesostructured DNA-silica materials, and their growth is controlled by the channels after calcination. Based on this directing concept, a material library, consisting of 50 mono- and 54 bicomponent UMNPs confined within silica and with narrow size distribution, is created. Theoretical calculation proves the indispensability of DNA with combination of several organics in the synthesis of ultrasmall metal nanoparticles. The Pt-silica and Pt/Ni-silica chosen from the library exhibit good catalytic performance for toluene combustion. This generalizable and straightforward synthesis strategy is expected to widen the corresponding applications of supported UMNPs.
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Affiliation(s)
- Arepati Azhati
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Composite Materials, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Haiyin Zhu
- School of Physical Science and Technology, Shanghai Tech University, 100 Haike Road, Pudong, Shanghai, 201210, China
| | - Tianwei Ouyang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Composite Materials, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Tianyao He
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi, 330031, China
| | - Yifei Zeng
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Jingang Jiang
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Honggen Peng
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi, 330031, China
| | - Shunai Che
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Composite Materials, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
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Abstract
Recent global warming has resulted in shifting of weather patterns and led to intensification of natural disasters and upsurges in pests and diseases. As a result, global food systems are under pressure and need adjustments to meet the change—often by pesticides. Unfortunately, such agrochemicals are harmful for humans and the environment, and consequently need to be monitored. Traditional detection methods currently used are time consuming in terms of sample preparation, are high cost, and devices are typically not portable. Recently, Surface Enhanced Raman Scattering (SERS) has emerged as an attractive candidate for rapid, high sensitivity and high selectivity detection of contaminants relevant to the food industry and environmental monitoring. In this review, the principles of SERS as well as recent SERS substrate fabrication methods are first discussed. Following this, their development and applications for agrifood safety is reviewed, with focus on detection of dye molecules, melamine in food products, and the detection of different classes of pesticides such as organophosphate and neonicotinoids.
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Weber V, Brigo L, Brusatin G, Mattei G, Pedron D, Pilot R, Signorini R. Hybrid Sol-Gel Surface-Enhanced Raman Sensor for Xylene Detection in Solution. SENSORS (BASEL, SWITZERLAND) 2021; 21:7912. [PMID: 34883918 PMCID: PMC8659955 DOI: 10.3390/s21237912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022]
Abstract
This paper reports on the fabrication and characterization of a plasmonic/sol-gel sensor for the detection of aromatic molecules. The sol-gel film was engineered using polysilsesquioxanes groups to capture the analyte, through π-π interaction, and to concentrate it close to the plasmonic surface, where Raman amplification occurs. Xylene was chosen as an analyte to test the sensor. It belongs to the general class of volatile organic compounds and can be found in water or in the atmosphere as pollutants released from a variety of processes; its detection with SERS is typically challenging, due to its low affinity toward metallic surfaces. The identification of xylene was verified in comparison with that of other aromatic molecules, such as benzene and toluene. Investigations were carried out on solutions of xylene in cyclohexane, using concentrations in the range from 0 to 800 mM, to evaluate the limit of detection (LOD) of about 40 mM.
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Affiliation(s)
- Verena Weber
- Department of Chemical Science, University of Padua, Via Marzolo 1, I-35131 Padova, Italy; (V.W.); (D.P.); (R.P.)
| | - Laura Brigo
- Department of Industrial Engineering, University of Padua, Via Marzolo 9, I-35131 Padova, Italy; (L.B.); (G.B.)
| | - Giovanna Brusatin
- Department of Industrial Engineering, University of Padua, Via Marzolo 9, I-35131 Padova, Italy; (L.B.); (G.B.)
| | - Giovanni Mattei
- Department of Physics and Astronomy “Galileo Galilei”, University of Padua, Via Marzolo 8, I-35131 Padova, Italy;
| | - Danilo Pedron
- Department of Chemical Science, University of Padua, Via Marzolo 1, I-35131 Padova, Italy; (V.W.); (D.P.); (R.P.)
- Consorzio INSTM, Via G. Giusti 12, I-50121 Firenze, Italy
| | - Roberto Pilot
- Department of Chemical Science, University of Padua, Via Marzolo 1, I-35131 Padova, Italy; (V.W.); (D.P.); (R.P.)
- Consorzio INSTM, Via G. Giusti 12, I-50121 Firenze, Italy
| | - Raffaella Signorini
- Department of Chemical Science, University of Padua, Via Marzolo 1, I-35131 Padova, Italy; (V.W.); (D.P.); (R.P.)
- Consorzio INSTM, Via G. Giusti 12, I-50121 Firenze, Italy
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A simple and reliable approach for the fabrication of nanoporous silver patterns for surface-enhanced Raman spectroscopy applications. Sci Rep 2021; 11:22295. [PMID: 34785690 PMCID: PMC8595463 DOI: 10.1038/s41598-021-01727-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/26/2021] [Indexed: 11/27/2022] Open
Abstract
The fabrication of plasmonic nanostructures with a reliable, low cost and easy approach has become a crucial and urgent challenge in many fields, including surface-enhanced Raman spectroscopy (SERS) based applications. In this frame, nanoporous metal films are quite attractive, due to their intrinsic large surface area and high density of metal nanogaps, acting as hot-spots for Raman signal enhancement. In this paper, we report a detailed study on the fabrication of nanoporous silver-based SERS substrates, obtained by the application of two successive treatments with an Inductively Coupled Plasma (ICP) system, using synthetic air and Ar as feeding gases. The obtained substrates exhibit a quite broad plasmonic response, covering the Vis–NIR range, and an enhancement factor reaching 6.5 \documentclass[12pt]{minimal}
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\begin{document}$$\times\, 10^7$$\end{document}×107, estimated by using 4-mercaptobenzoic acid (4-MBA) as probe molecule at 532 nm. Moreover, the substrates exhibit a quite good spatial reproducibility on a centimeter scale, which assures a good signal stability for analytical measurements. Globally, the developed protocol is easy and cost effective, potentially usable also for mass production thanks to the remarkable inter-batches reproducibility. As such, it holds promise for its use in SERS-based sensing platforms for sensitive detection of targets molecules.
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Das GM, Managò S, Mangini M, De Luca AC. Biosensing Using SERS Active Gold Nanostructures. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2679. [PMID: 34685120 PMCID: PMC8539114 DOI: 10.3390/nano11102679] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/30/2021] [Accepted: 10/08/2021] [Indexed: 12/04/2022]
Abstract
Surface-enhanced Raman spectroscopy (SERS) has become a powerful tool for biosensing applications owing to its fingerprint recognition, high sensitivity, multiplex detection, and biocompatibility. This review provides an overview of the most significant aspects of SERS for biomedical and biosensing applications. We first introduced the mechanisms at the basis of the SERS amplifications: electromagnetic and chemical enhancement. We then illustrated several types of substrates and fabrication methods, with a focus on gold-based nanostructures. We further analyzed the relevant factors for the characterization of the SERS sensor performances, including sensitivity, reproducibility, stability, sensor configuration (direct or indirect), and nanotoxicity. Finally, a representative selection of applications in the biomedical field is provided.
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Affiliation(s)
| | - Stefano Managò
- Laboratory of Biophotonics and Advanced Microscopy, Second Unit, Institute of Experimental Endocrinology and Oncology “G. Salvatore” (IEOS), National Research Council (CNR), Via P. Castellino 111, 80131 Naples, Italy; (G.M.D.); (M.M.)
| | | | - Anna Chiara De Luca
- Laboratory of Biophotonics and Advanced Microscopy, Second Unit, Institute of Experimental Endocrinology and Oncology “G. Salvatore” (IEOS), National Research Council (CNR), Via P. Castellino 111, 80131 Naples, Italy; (G.M.D.); (M.M.)
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Devaraj V, Lee JM, Kim YJ, Jeong H, Oh JW. Engineering Efficient Self-Assembled Plasmonic Nanostructures by Configuring Metallic Nanoparticle's Morphology. Int J Mol Sci 2021; 22:10595. [PMID: 34638948 PMCID: PMC8508844 DOI: 10.3390/ijms221910595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 11/16/2022] Open
Abstract
We reveal the significance of plasmonic nanoparticle's (NP) shape and its surface morphology en route to an efficient self-assembled plasmonic nanoparticle cluster. A simplified model is simulated in the form of free-space dimer and trimer nanostructures (NPs in the shape of a sphere, cube, and disk). A ~200% to ~125% rise in near-field strength (gap mode enhancement) is observed for spherical NPs in comparison with cubical NPs (from 2 nm to 8 nm gap sizes). Full-width three-quarter maximum reveals better broad-spectral optical performance in a range of ~100 nm (dimer) and ~170 nm (trimer) from spherical NPs as compared to a cube (~60 nm for dimer and trimer). These excellent properties for sphere-based nanostructures are merited from its dipole mode characteristics.
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Affiliation(s)
- Vasanthan Devaraj
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan 46241, Korea; (V.D.); (J.-M.L.); (H.J.)
| | - Jong-Min Lee
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan 46241, Korea; (V.D.); (J.-M.L.); (H.J.)
- School of Nanoconvergence Technology, Hallym University, Chuncheon 24252, Korea
| | - Ye-Ji Kim
- Department of Nano Fusion Technology and BK21 Plus Nano Convergence Division, Pusan National University, Busan 46241, Korea;
| | - Hyuk Jeong
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan 46241, Korea; (V.D.); (J.-M.L.); (H.J.)
| | - Jin-Woo Oh
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan 46241, Korea; (V.D.); (J.-M.L.); (H.J.)
- Department of Nano Fusion Technology and BK21 Plus Nano Convergence Division, Pusan National University, Busan 46241, Korea;
- Department of Nanoenergy Engineering, Pusan National University, Busan 46241, Korea
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Ranishenka BV, Panarin AY, Chelnokova IA, Terekhov SN, Mojzes P, Shmanai VV. Modification of a SERS-active Ag surface to promote adsorption of charged analytes: effect of Cu 2+ ions. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2021; 12:902-912. [PMID: 34497738 PMCID: PMC8381809 DOI: 10.3762/bjnano.12.67] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
This work studies the impact of the electrostatic interaction between analyte molecules and silver nanoparticles (Ag NPs) on the intensity of surface-enhanced Raman scattering (SERS). For this, we fabricated nanostructured plasmonic films by immobilization of Ag NPs on glass plates and functionalized them by a set of differently charged hydrophilic thiols (sodium 2-mercaptoethyl sulfonate, mercaptopropionic acid, 2-mercaptoethanol, 2-(dimethylamino)ethanethiol hydrochloride, and thiocholine) to vary the surface charge of the SERS substrate. We used two oppositely charged porphyrins, cationic copper(II) tetrakis(4-N-methylpyridyl) porphine (CuTMpyP4) and anionic copper(II) 5,10,15,20-tetrakis(4-sulfonatophenyl)porphine (CuTSPP4), with equal charge value and similar structure as model analytes to probe the SERS signal. Our results indicate that the SERS spectrum intensity strongly, up to complete signal disappearance, correlates with the surface charge of the substrate, which tends to be negative. Using the data obtained and our model SERS system, we analyzed the modification of the Ag surface by different reagents (lithium chloride, polyethylenimine, polyhexamethylene guanidine, and multicharged metal ions). Finally, all those surface modifications were tested using a negatively charged oligonucleotide labeled with Black Hole Quencher dye. Only the addition of copper ions into the analyte solution yielded a good SERS signal. Considering the strong interaction of copper ions with the oligonucleotide molecules, we suppose that inversion of the analyte charge played a key role in this case, instead of a change of charge of the substrate surface. Changing the charge of analytes could be a promising way to get clear SERS spectra of negatively charged molecules on Ag SERS-active supports.
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Affiliation(s)
- Bahdan V Ranishenka
- Institute of Physical Organic Chemistry, National Academy of Sciences of Belarus, 13 Surganova Str., Minsk, 220072, Belarus
| | - Andrei Yu Panarin
- B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68 Nezavisimosti Ave., 220072, Minsk, Belarus
| | - Irina A Chelnokova
- Institute of Radiobiology of NAS of Belarus, Feduninskogo st., 4, 246007, Gomel, Belarus
| | - Sergei N Terekhov
- B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 68 Nezavisimosti Ave., 220072, Minsk, Belarus
| | - Peter Mojzes
- Institute of Physics, Charles University, Ke Karlovu 5, CZ-121 16 Prague 2, Czech Republic
| | - Vadim V Shmanai
- Institute of Physical Organic Chemistry, National Academy of Sciences of Belarus, 13 Surganova Str., Minsk, 220072, Belarus
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Li M, Zhang X. Nanostructure-Based Surface-Enhanced Raman Spectroscopy Techniques for Pesticide and Veterinary Drug Residues Screening. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 107:194-205. [PMID: 32939593 DOI: 10.1007/s00128-020-02989-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 09/07/2020] [Indexed: 06/11/2023]
Abstract
Pesticide and veterinary drug residues in food and environment pose a threat to human health, and a rapid, super-sensitive, accurate and cost-effective analysis technique is therefore highly required to overcome the disadvantages of conventional techniques based on mass spectrometry. Recently, the surface-enhanced Raman spectroscopy (SERS) technique emerges as a potential promising analytical tool for rapid, sensitive and selective detections of environmental pollutants, mostly owing to its possible simplified sample pretreatment, gigantic detectable signal amplification and quick target analyte identification via finger-printing SERS spectra. So theoretically the SERS detection technology has inherent advantages over other competitors especially in complex environmental matrices. The progress in nanostructure SERS substrates and portable Raman appliances will promote this novel detection technology to play an important role in future rapid on-site assay. This paper reviews the advances in nanostructure-based SERS substrates, sensors and relevant portable integrated systems for environmental analysis, highlights the potential applications in the detections of synthetic chemicals such as pesticide and veterinary drug residues, and also discusses the challenges of SERS detection technique for actual environmental monitoring in the future.
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Affiliation(s)
- Mingtao Li
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China.
| | - Xiang Zhang
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China
- University of Science and Technology of China, Hefei, 230026, China
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Feng S, Ji W. Advanced Nanoporous Anodic Alumina-Based Optical Sensors for Biomedical Applications. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2021.678275] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Close-packed hexagonal array nanopores are widely used both in research and industry. A self-ordered nanoporous structure makes anodic aluminum oxide (AAO) one of the most popular nanomaterials. This paper describes the main formation mechanisms for AAO, the AAO fabrication process, and optical sensor applications. The paper is focused on four types of AAO-based optical biosensor technology: surface-Enhanced Raman Scattering (SERS), surface Plasmon Resonance (SPR), reflectometric Interference Spectroscopy (RIfS), and photoluminescence Spectroscopy (PL). AAO-based optical biosensors feature very good selectivity, specificity, and reusability.
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Fabrication of gold/silver nanodimer SERS probes for the simultaneous detection of Salmonella typhimurium and Staphylococcus aureus. Mikrochim Acta 2021; 188:202. [PMID: 34041580 DOI: 10.1007/s00604-021-04791-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 03/15/2021] [Indexed: 12/17/2022]
Abstract
Salmonella typhimurium (S. typhimurium) and Staphylococcus aureus (S. aureus) are the two most important foodborne pathogens which can easily cause disease infections. Here, the aptamer-facilitated gold/silver nanodimer SERS probes were built for the simultaneous detection of the two bacteria with the help of magnetic separation enrichment. First, two nanodimer SERS signal probes and two magnetic capture probes each connected with the specific aptamer were fabricated. The distance between gold and silver nanoparticles in the dimer can amplify the Raman signal (Cy3 and Rox) at the junction but modified in the aptamer sequence. Then, after the addition of S. typhimurium and S. aureus, the sandwich-like composite structures "SERS signal probes-target-magnetic capture probes" formed because of the high affinity between aptamer sequences and their target bacteria. Under the optimal experimental conditions, the linear correlations between Raman intensity and the logarithm of the concentration of bacteria were y = 876.95x-67.84 (R2 = 0.9865) for S. typhimurium and y = 1280.43x-1752.6 (R2 = 0.9883) for S. aureus. The SERS detection showed the nanodimer probe had high selectivity. Besides, the recovery experiment in milk sample indicated good accuracy compared with the traditional plate counting method.
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SERRS Detection on Silver Nanoparticles Supported on Acid-Treated Melamine-Resin Microspheres. NANOMATERIALS 2021; 11:nano11051337. [PMID: 34069526 PMCID: PMC8160733 DOI: 10.3390/nano11051337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/05/2021] [Accepted: 05/10/2021] [Indexed: 01/07/2023]
Abstract
Melamine-resin microspheres were synthesized at a pH of 4.0 for 20 min and used as silver nanoparticle (AgNP) carriers for surface enhanced resonant Raman scattering (SERRS) detection. An acetic acid–treatment reaction was introduced into the fabrication of the final substrate. The SERRS performance of the substrate was effectively optimized by regulating excess formaldehyde and experimental parameters, such as acidity, number of treatments and reaction temperature in the acid-treatment reaction. Based on the SERRS detection, it was declared that a trace amount of oligomers with a certain degree of polymerization is necessary for the construction of SERRS hotspots. In addition, it is important to remove excess oligomers with reference to the synthetic reaction of the polymer materials, given the special role of oligomers and the wide application of polymer materials in SERRS detection.
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Ko TS, Liu HY, Shieh J, Shieh D, Chen SH, Chen YL, Lin ET. Using Si/MoS 2 Core-Shell Nanopillar Arrays Enhances SERS Signal. NANOMATERIALS 2021; 11:nano11030733. [PMID: 33803940 PMCID: PMC8001147 DOI: 10.3390/nano11030733] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/11/2021] [Accepted: 03/13/2021] [Indexed: 12/23/2022]
Abstract
Two-dimensional layered material Molybdenum disulfide (MoS2) exhibits a flat surface without dangling bonds and is expected to be a suitable surface-enhanced Raman scattering (SERS) substrate for the detection of organic molecules. However, further fabrication of nanostructures for enhancement of SERS is necessary because of the low detection efficiency of MoS2. In this paper, period-distribution Si/MoS2 core/shell nanopillar (NP) arrays were fabricated for SERS. The MoS2 thin films were formed on the surface of Si NPs by sulfurizing the MoO3 thin films coated on the Si NP arrays. Scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy were performed to characterize Si/MoS2 core-shell nanostructure. In comparison with a bare Si substrate and MoS2 thin film, the use of Si/MoS2 core-shell NP arrays as SERS substrates enhances the intensity of each SERS signal peak for Rhodamine 6G (R6G) molecules, and especially exhibits about 75-fold and 7-fold enhancements in the 1361 cm−1 peak signal, respectively. We suggest that the Si/MoS2 core-shell NP arrays with larger area could absorb more R6G molecules and provide larger interfaces between MoS2 and R6G molecules, leading to higher opportunity of charge transfer process and exciton transitions. Therefore, the Si/MoS2 core/shell NP arrays could effectively enhance SERS signal and serve as excellent SERS substrates in biomedical detection.
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Affiliation(s)
- Tsung-Shine Ko
- Department of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua 50074, Taiwan; (H.-Y.L.); (D.S.); (Y.-L.C.); (E.-T.L.)
- Correspondence: ; Tel.: +886-47232105 (ext. 8367)
| | - Han-Yuan Liu
- Department of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua 50074, Taiwan; (H.-Y.L.); (D.S.); (Y.-L.C.); (E.-T.L.)
| | - Jiann Shieh
- Department of Materials Science and Engineering, National United University, No. 2, Lianda, Miaoli 36063, Taiwan;
| | - De Shieh
- Department of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua 50074, Taiwan; (H.-Y.L.); (D.S.); (Y.-L.C.); (E.-T.L.)
| | - Szu-Hung Chen
- Taiwan Semiconductor Research Institute, No. 26, Prosperity Road I, Hsinchu Science Park, Hsinchu 300091, Taiwan;
| | - Yen-Lun Chen
- Department of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua 50074, Taiwan; (H.-Y.L.); (D.S.); (Y.-L.C.); (E.-T.L.)
| | - En-Ting Lin
- Department of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua 50074, Taiwan; (H.-Y.L.); (D.S.); (Y.-L.C.); (E.-T.L.)
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Lu M, Peng W, Lin M, Wang F, Zhang Y. Gold Nanoparticle-Enhanced Detection of DNA Hybridization by a Block Copolymer-Templating Fiber-Optic Localized Surface Plasmon Resonance Biosensor. NANOMATERIALS 2021; 11:nano11030616. [PMID: 33804516 PMCID: PMC7998318 DOI: 10.3390/nano11030616] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 11/16/2022]
Abstract
To overcome low surface coverage and aggregation of particles, which usually restricts the sensitivity and resolution of conventional localized surface plasmon resonance (LSPR) fiber-optic sensors, we propose a simple self-assembled templating technique that uses a nanometer thickness block copolymer (BCP) layer of poly(styrene-b-4-vinylpyridine) to form a 33 nm gold nanoparticle (AuNP) monolayer with high uniformity and density for LSPR sensing. The LSPR resonance wavelength for this PS-b-P4VP templated methodology is 592 nm and its refractive index sensitivity is up to 386.36 nm/RIU, both of which are significantly improved compared to those of conventional LSPR techniques. Calibrated by a layer-by-layer polyelectrolyte deposition procedure, the decay length of this LSPR sensor is calculated to be 78 nm, which is lower than other traditional self-assembled LSPR sensors. Furthermore, hybridization between target ssDNA, which is linked with capture ssDNA on the LSPR biosensor and DNA–AuNP conjugates, leads to a low detection limit of 67 pM. These enhanced performances are significant and valuable for high-sensitivity and cost-effective LSPR biosensing applications.
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Daripa S, Verma R, Guin D, Chakraborty C, Awasthi K, Kuila BK. Metal-Immobilized Micellar Aggregates of a Block Copolymer from a Mixed Solvent for a SERS-Active Sensing Substrate and Versatile Dip Catalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:2445-2456. [PMID: 33573379 DOI: 10.1021/acs.langmuir.0c03505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Here, we have reported micellar aggregations of an amphiphilic block copolymer in mixed solvent and their subsequent use as a template for the fabrication of a very dense, tunable metal nanoparticle-decorated surface for SERS and flexible dip catalysis applications. A silver nanoparticle-immobilized layer on silicon substrates shows excellent SERS (surface-enhanced Raman scattering)-based sensing performance for model analyte rhodamine B up to 10-6 M concentration with a well-defined calibration curve. Furthermore, a facile approach to the preparation of metal NP-immobilized BCP membranes as efficient dip catalyst for two model reactions (the reduction of nitrophenol and the Suzuki-Miyaura reaction of iodobenzene or 2,7-diiodofluorene with phenyl boronic acid) is also demonstrated. The Ag NP-decorated film exhibits high efficiency and extensive reusability in a prototype reaction such as the reduction of nitrophenol by sodium borohydride with a very high turnover number, >126 (for a single use), whereas the Pd NP-immobilized film also has a high, ∼100%, reaction yield and extensive reusability and applicable for different aromatic systems. This work provides a new platform for the design and synthesis of a functionalizable, flexible, and highly mechanically stable dip catalyst which is highly demanded in the catalytic production of value-added chemicals and environmental applications such as wastewater treatment.
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Affiliation(s)
- Soumili Daripa
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Rampal Verma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Debanjan Guin
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Chanchal Chakraborty
- Department of Chemistry, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500078, India
| | - Kamlendra Awasthi
- Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, Rajasthan 302017, India
| | - Biplab Kumar Kuila
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
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Darvill D, Iarossi M, Abraham Ekeroth RM, Hubarevich A, Huang JA, De Angelis F. Breaking the symmetry of nanosphere lithography with anisotropic plasma etching induced by temperature gradients. NANOSCALE ADVANCES 2021; 3:359-369. [PMID: 36131733 PMCID: PMC9419189 DOI: 10.1039/d0na00718h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/10/2020] [Indexed: 06/01/2023]
Abstract
We report a novel anisotropic process, termed plasma etching induced by temperature gradients (PE-TG), which we use to modify the 3D morphology of a hexagonally close-packed polystyrene sphere array. Specifically, we combined an isotropic oxygen plasma (generated by a plasma cleaner) and a vertical temperature gradient applied from the bottom to the top of a colloidal mask to create an anisotropic etching process. As a result, an ordered array of well-defined and separated nano mushrooms is obtained. We demonstrate that the features of the mushrooms, namely the hat size and their intrinsic undercut, as well as the pillar diameter and height, can be easily tuned by adjusting the main parameters of the process i.e. the temperature gradient and etching time, or the spheres' size. We show that PS mushroom arrays can be used as nanostructured templates to fabricate plasmonic arrays, such as gold-capped nano mushrooms and ultra-small nanoapertures, by using vertical and oblique gold sputtering deposition respectively. PE-TG reveals a new, cheap and facile approach to produce plasmonic nanostructures of great interest in the fields of molecular sensing, surface-enhanced Raman scattering (SERS), energy harvesting and optoelectronics. We study the optical properties of the Au-capped nano mushroom arrays and their performance as biosensing platforms by performing SERS measurements.
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Affiliation(s)
- Daniel Darvill
- Istituto Italiano di Tecnologia Via Morego 30 16136 Genova Italy
| | - Marzia Iarossi
- Istituto Italiano di Tecnologia Via Morego 30 16136 Genova Italy
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS), Università; degli Studi di Genova Via Balbi 5 16126 Genova Italy
| | - Ricardo M Abraham Ekeroth
- Istituto Italiano di Tecnologia Via Morego 30 16136 Genova Italy
- Instituto de Física Arroyo Seco (CIFICEN-CICPBA-CONICET), Universidad Nacional del Centro de la Provincia de Buenos Aires Pinto 399 7000 Tandil Argentina
| | | | - Jian-An Huang
- Istituto Italiano di Tecnologia Via Morego 30 16136 Genova Italy
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Huang CT, Jan FJ, Chang CC. A 3D Plasmonic Crossed-Wire Nanostructure for Surface-Enhanced Raman Scattering and Plasmon-Enhanced Fluorescence Detection. Molecules 2021; 26:molecules26020281. [PMID: 33429970 DOI: 10.3390/molecules26020281] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 01/04/2023] Open
Abstract
In this manuscript, silver nanowire 3D random crossed-wire woodpile (3D-RCW) nanostructures were designed and prepared. The 3D-RCW provides rich "antenna" and "hot spot" effects that are responsive for surface-enhanced Raman scattering (SERS) effects and plasmon-enhanced fluorescence (PEF). The optimal construction mode for the 3D-RCW, based on the ratio of silver nanowire and control compound R6G, was explored and established for use in PEF and SERS analyses. We found that the RCW nanochip capable of emission and Raman-enhanced detections uses micro levels of analysis volumes. Consequently, and SERS and PEF of pesticides (thiram, carbaryl, paraquat, fipronil) were successfully measured and characterized, and their detection limits were within 5 μM~0.05 µM in 20 µL. We found that the designed 3D plasmon-enhanced platform cannot only collect the SERS of pesticides, but also enhance the fluorescence of a weak emitter (pesticides) by more than 1000-fold via excitation of the surface plasmon resonance, which can be used to extend the range of a fluorescence biosensor. More importantly, solid-state measurement using a 3D-RCW nanoplatform shows promising potential based on its dual applications in creating large SERS and PEF enhancements.
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Affiliation(s)
- Chun-Ta Huang
- Protrustech Co., Ltd., 3F.-1, No.293, Sec. 3, Dongmen Rd. East District, Tainan City 701, Taiwan
| | - Fuh-Jyh Jan
- Department of Plant Pathology, National Chung-Hsing University, Taichung 402, Taiwan
- Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan
| | - Cheng-Chung Chang
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan
- Intelligent Minimally-Invasive Device Center, National Chung Hsing University, Taichung 402, Taiwan
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Jing Y, Wang R, Wang Q, Xiang Z, Li Z, Gu H, Wang X. An overview of surface-enhanced Raman scattering substrates by pulsed laser deposition technique: fundamentals and applications. ADVANCED COMPOSITES AND HYBRID MATERIALS 2021; 4:885-905. [PMID: 34485823 PMCID: PMC8409082 DOI: 10.1007/s42114-021-00330-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/09/2021] [Accepted: 08/13/2021] [Indexed: 05/03/2023]
Abstract
Metallic nanoparticles (NPs), as an efficient substrate for surface-enhanced Raman scattering (SERS), attract much interests because of their various shapes and sizes. The appropriate size and morphology of metallic NPs are critical to serve as the substrate for achieving an efficient SERS. Pulsed laser deposition (PLD) is one of the feasible physical methods employed to synthesize metallic NPs with controllable sizes and surface characteristics. It has been recognized to be a successful tool for the deposition of SERS substrates due to its good controllability and high reproducibility in the manufacture of metallic NPs. This review provides an overview about the recent advances for the preparation of SERS substrates by PLD technique. The influences of parameters on the sizes and morphologies of metallic NPs during the deposition processes in PLD technique including laser output parameters, gas medium, liquid medium, substrate temperature, and properties of 3D substrate are presented. The applications of SERS substrates produced by PLD in the environmental monitoring and biomedical analysis are summarized. This knowledge could serve as a guideline for the researchers in exploring further applications of PLD technique in the production of SERS substrate.
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Affiliation(s)
- Yuting Jing
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092 China
| | - Ruijing Wang
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092 China
| | - Qunlong Wang
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092 China
| | - Zheyuan Xiang
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092 China
| | - Zhengxin Li
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092 China
| | - Hongbo Gu
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092 China
| | - Xuefeng Wang
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai, 200092 China
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Shumbula NP, Ndala ZB, Nkabinde SS, Kolokoto T, Shumbula PM, Mdluli PS, Hlatshwayo T, Mlambo M, Moloto N. Experimental and theoretical studies of 1-alkanethiols SAMs of various chain-lengths on gold nanoparticles and their effect on SERS, stability and surface properties. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Saffioti NA, Cavalcanti-Adam EA, Pallarola D. Biosensors for Studies on Adhesion-Mediated Cellular Responses to Their Microenvironment. Front Bioeng Biotechnol 2020; 8:597950. [PMID: 33262979 PMCID: PMC7685988 DOI: 10.3389/fbioe.2020.597950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 10/12/2020] [Indexed: 12/28/2022] Open
Abstract
Cells interact with their microenvironment by constantly sensing mechanical and chemical cues converting them into biochemical signals. These processes allow cells to respond and adapt to changes in their environment, and are crucial for most cellular functions. Understanding the mechanism underlying this complex interplay at the cell-matrix interface is of fundamental value to decipher key biochemical and mechanical factors regulating cell fate. The combination of material science and surface chemistry aided in the creation of controllable environments to study cell mechanosensing and mechanotransduction. Biologically inspired materials tailored with specific bioactive molecules, desired physical properties and tunable topography have emerged as suitable tools to study cell behavior. Among these materials, synthetic cell interfaces with built-in sensing capabilities are highly advantageous to measure biophysical and biochemical interaction between cells and their environment. In this review, we discuss the design of micro and nanostructured biomaterials engineered not only to mimic the structure, properties, and function of the cellular microenvironment, but also to obtain quantitative information on how cells sense and probe specific adhesive cues from the extracellular domain. This type of responsive biointerfaces provides a readout of mechanics, biochemistry, and electrical activity in real time allowing observation of cellular processes with molecular specificity. Specifically designed sensors based on advanced optical and electrochemical readout are discussed. We further provide an insight into the emerging role of multifunctional micro and nanosensors to control and monitor cell functions by means of material design.
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Affiliation(s)
- Nicolás Andrés Saffioti
- Instituto de Nanosistemas, Universidad Nacional de General San Martín, San Martín, Argentina
| | | | - Diego Pallarola
- Instituto de Nanosistemas, Universidad Nacional de General San Martín, San Martín, Argentina
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Beyene AB, Hwang BJ, Tegegne WA, Wang JS, Tsai HC, Su WN. Reliable and sensitive detection of pancreatic cancer marker by gold nanoflower-based SERS mapping immunoassay. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105099] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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