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Singh R, Samuel MS, Ravikumar M, Ethiraj S, Kumar M. Graphene materials in pollution trace detection and environmental improvement. ENVIRONMENTAL RESEARCH 2024; 243:117830. [PMID: 38056611 DOI: 10.1016/j.envres.2023.117830] [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: 08/25/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023]
Abstract
Water scarcity is a pressing issue experienced in numerous countries and is expected to become increasingly critical in the future. Anthropogenic activities such as mining, agriculture, industries, and domestic waste discharge toxic contaminants into natural water bodies, causing pollution. Addressing these environmental crises requires tackling the challenge of removing pollutants from water. Graphene oxide (GO), a form of graphene functionalized with oxygen-containing chemical groups, has recently garnered renewed interest due to its exceptional properties. These properties include a large surface area, mechanical stability, and adjustable electrical and optical characteristics. Additionally, surface functional groups like hydroxyl, epoxy, and carboxyl groups make GO an outstanding candidate for interacting with other materials or molecules. Because of its expanded structural diversity and enhanced overall properties, GO and its composites hold significant promise for a wide range of applications in energy storage, conversion, and environmental protection. These applications encompass hydrogen storage materials, photocatalysts for water splitting, the removal of air pollutants, and water purification. Serving as electrode materials for various lithium batteries and supercapacitors. Graphene-based materials, including graphene, graphene oxide, reduced graphene oxide, graphene polymer nanocomposites, and graphene nanoparticle metal hybrids, have emerged as valuable tools in energy and environmental remediation technologies. This review article provides an overview of the significant impact of graphene-based materials in various areas. Regarding energy-related topics, this article explores the applications of graphene-based materials in supercapacitors, lithium-ion batteries, and catalysts for fuel cells. Additionally, the article investigates recent advancements in detecting and treating persistent organic pollutants (POPs) and heavy metals using nanomaterials. The article also discusses recent developments in creating innovative nanomaterials, nanostructures, and treatment methods for addressing POPs and heavy metals in water. It aims to present the field's current state and will be a valuable resource for individuals interested in nanomaterials and related materials.
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Affiliation(s)
- Rashmi Singh
- Department of Physics, Institute of Applied Sciences and Humanities, GLA University, Mathura, Uttar Pradesh, 281406, India
| | - Melvin S Samuel
- Department of Bioengineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical, Chennai, 602105, India.
| | | | - Selvarajan Ethiraj
- Department of Genetic Engineering, College of Engineering and Technology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India.
| | - Mohanraj Kumar
- Department of Environmental Engineering and Management, Chaoyang University of Technology, Taichung, 413310, Taiwan
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2
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Sánchez-Alvarado AB, Zhou J, Jin P, Neumann O, Senftle TP, Nordlander P, Halas NJ. Combined Surface-Enhanced Raman and Infrared Absorption Spectroscopies for Streamlined Chemical Detection of Polycyclic Aromatic Hydrocarbon-Derived Compounds. ACS NANO 2023; 17:25697-25706. [PMID: 38063501 DOI: 10.1021/acsnano.3c10746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) constitute a class of universally prevalent carcinogenic environmental contaminants. It is increasingly recognized, however, that PAHs derivatized with oxygen, sulfur, or nitrogen functional groups are frequently more dangerous than their unfunctionalized counterparts. This much larger family of chemicals─polycyclic aromatic compounds─PACs─is far less well characterized than PAHs. Using surface-enhanced Raman and IR Absorption spectroscopies (SERS + SEIRA) combined on a single substrate, along with density functional theoretical (DFT) calculations, we show that direct chemical detection and identification of PACs at sub-parts-per-billion concentration can be achieved. Focusing our studies on 9,10-anthraquinone, 5,12-tetracenequinone, 9-nitroanthracene, and 1-nitropyrene as model PAC contaminants, detection is made possible by incorporating a hydroxy-functionalized self-assembled monolayer that facilitates hydrogen bonding between analytes and the SERS + SEIRA substrate. 5,12-Tetracenequinone was detected at 0.3 ppb, and the limit of detection was determined to be 0.1 ppb using SEIRA alone. This approach is straightforwardly extendable to other families of analytes and will ultimately facilitate fieldable chemical detection of these dangerous yet largely overlooked environmental contaminants.
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Affiliation(s)
- Andrés B Sánchez-Alvarado
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
| | - Jingyi Zhou
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
| | - Peixuan Jin
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Oara Neumann
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
| | - Thomas P Senftle
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Peter Nordlander
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
| | - Naomi J Halas
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
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3
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Liu J, Cui W, Sang S, Guan L, Gu K, Wang Y, Wang J. Surface-Enhanced Raman Spectroscopic Investigation of PAHs at a Fe3O4@GO@Ag@PDA Composite Substrates. MICROMACHINES 2022; 13:mi13081253. [PMID: 36014177 PMCID: PMC9413484 DOI: 10.3390/mi13081253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/31/2022] [Accepted: 08/01/2022] [Indexed: 01/27/2023]
Abstract
A method for surface-enhanced Raman spectroscopy (SERS) sensing of polycyclic aromatic hydrocarbons (PAHs) is reported. Fe3O4@PDA@Ag@GO is developed as the SERS substrate prepared by classical electrostatic attraction method based on the enrichment of organic compounds by graphene oxide (GO) and polydopamine (PDA) and the good separation and enrichment function of Fe3O4. The morphology and structure of the SERS substrate were represented by transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) and the UV–visible absorption spectrum (UV–vis spectra). The effect of different temperatures on SERS during synthesis was investigated, and it was found that the best effect was achieved when the synthesis temperature was 90 °C. The effect of each component of Fe3O4@PDA@Ag@GO nanocomposites on SERS was explored, and it was found that Ag NPs are of great significance to enhance the Raman signal based on the electromagnetic enhancement mechanism; apart from enriching the polycyclic aromatic hydrocarbons (PAHs) through π–π interaction, GO also generates strong chemical enhancement to the Raman signal, and PDA can prevent Ag from shedding and agglomeration. The existence of Fe3O4 is favored for the fast separation of substrate from the solutions, which greatly simplifies the detection procedure and facilitates the cycle use of the substrate. The experimental procedure is simplified, and the substrate is reused easily. Three kinds of PAHs (phenanthrene, pyrene and benzanthene) are employed as probe molecules to verify the performance of the composite SERS substrate. The results show that the limit of detection (LOD) of phenanthrene pyrene and benzanthene detected by Fe3O4@PDA@Ag@GO composite substrate are 10−8 g/L (5.6 × 10−11 mol/L), 10−7 g/L (4.9 × 10−10 mol/L) and 10−7 g/L (4.4 × 10−10 mol/L), respectively, which is much lower than that of ordinary Raman, and it is promising for its application in the enrichment detection of trace PAHs in the environment.
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Affiliation(s)
- Junyu Liu
- College of Material and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
- Department of Petroleum, Oil and Lubricants Army Logistics Academy of PLA, Chongqing 401331, China
| | - Wencan Cui
- Department of Basic Courses, Army Logistic Academy of PLA, Chongqing 401331, China
| | - Shihua Sang
- College of Material and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
- Correspondence: (S.S.); (L.G.); (K.G.)
| | - Liang Guan
- Department of Petroleum, Oil and Lubricants Army Logistics Academy of PLA, Chongqing 401331, China
- Correspondence: (S.S.); (L.G.); (K.G.)
| | - Kecheng Gu
- Department of Petroleum, Oil and Lubricants Army Logistics Academy of PLA, Chongqing 401331, China
- Correspondence: (S.S.); (L.G.); (K.G.)
| | - Yinyin Wang
- Department of Petroleum, Oil and Lubricants Army Logistics Academy of PLA, Chongqing 401331, China
| | - Jian Wang
- Department of Petroleum, Oil and Lubricants Army Logistics Academy of PLA, Chongqing 401331, China
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4
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Tay LL, Poirier S, Ghaemi A, Hulse J, Wang S. Iodide Functionalized Paper-Based SERS Sensors for Improved Detection of Narcotics. Front Chem 2021; 9:680556. [PMID: 34568274 PMCID: PMC8455876 DOI: 10.3389/fchem.2021.680556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 08/18/2021] [Indexed: 11/13/2022] Open
Abstract
An inkjet-printed paper-based Surface-enhanced Raman scattering (SERS) sensor is a robust and versatile device that provides trace sensing capabilities for the detection and analysis of narcotics and drugs. Such sensors generally work well for analytes with good binding affinity towards the Au or Ag plasmonic nanoparticles (NPs) resident in the sensors. In this report, we show that iodide functionalization of the printed sensors helps to remove adsorbed contaminants from AuNP surfaces enabling superior performance with improved detection of narcotics such as fentanyl, heroin and cocaine by SERS. SERS signals are easily doubled with the iodide-functionalized sensors which also showed orders of magnitude improvement in detection limit. In this report, we show that a short (90 s) iodide treatment of the sensors significantly improved the detection of heroin. We propose that iodide functionalization be integrated into field detection kits through the solvent that wets paper-based sensor prior to swabbing for narcotics. Alternatively, we have also demonstrated that iodide functionalized sensors can be stored in ambient for up to 1 week and retain the improved performance towards heroin detection. This report will help to significantly improve the performance of paper-based sensors for field detection of narcotic drugs.
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Affiliation(s)
- Li-Lin Tay
- National Research Council Canada, Metrology Research Centre, Ottawa, ON, Canada
| | - Shawn Poirier
- National Research Council Canada, Metrology Research Centre, Ottawa, ON, Canada
| | - Ali Ghaemi
- National Research Council Canada, Metrology Research Centre, Ottawa, ON, Canada
| | - John Hulse
- National Research Council Canada, Metrology Research Centre, Ottawa, ON, Canada
| | - Shiliang Wang
- Defense Research and Development Canada, Suffield Research Centre, Medicine Hat, AB, Canada
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Continuous in situ portable SERS analysis of pollutants in water and air by a highly sensitive gold nanoparticle-decorated PVDF substrate. Anal Bioanal Chem 2021; 413:5469-5482. [PMID: 34312691 DOI: 10.1007/s00216-021-03531-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/07/2021] [Accepted: 07/07/2021] [Indexed: 01/23/2023]
Abstract
The increasingly serious environmental pollution worldwide has posed a great threat to the ecosystem and human health, and yet the development of portable in situ monitoring techniques that are sensitive to gaseous and water pollutants remains incomplete. Herein, we report a highly active surface-enhanced Raman spectroscopy (SERS) substrate fabricated by immobilizing gold nanoparticles (AuNPs) onto a polyvinylidene fluoride (PVDF) membrane for continuous in situ SERS detection of pollutants in water and atmosphere. 4-Mercaptobenzoic acid (4-MBA) was adopted as a probe molecule to evaluate the performance of the substrate, and the results indicate that the polymer-based flexible substrate features high sensitivity, uniformity, and repeatability. The fabricated PVDF/SERS substrate was integrated with a portable Raman spectrometer operating under both passing-by and passing-through modes. The integrated system accomplishes quantitative detection and real-time online monitoring of pH in a liquid environment with a response speed of less than 10 s and the rapid SERS response to gas molecules at a low concentration within 30 s. We also demonstrated the highly sensitive detection for mainstream smoke (MS) and sidestream (SS) of cigarette smoke and verified their differences in the main constituent which contributes to the harmful secondhand smoke in public. The developed portable Raman system has excellent application prospects in online liquid and gas environmental detection.
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Saito K, McGehee K, Norikane Y. Size-controlled synthesis of cyclodextrin-capped gold nanoparticles for molecular recognition using surface-enhanced Raman scattering. NANOSCALE ADVANCES 2021; 3:3272-3278. [PMID: 36133653 PMCID: PMC9417794 DOI: 10.1039/d1na00125f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/07/2021] [Indexed: 06/15/2023]
Abstract
Cyclodextrin (CD)-capped gold nanoparticles (AuNPs) can be applied in sensing, catalysis, and self-assembly processes due to their molecular recognition ability. As the plasmon resonance of AuNPs depends on their size, the size-controlled synthesis of CD-capped AuNPs is essential for the development of these applications. Herein, we successfully synthesized β-CD-capped AuNPs with diameters of 24-85 nm using a seed-mediated growth method. The AuNPs were prepared using a β-CD as both the reducing agent and the capping agent. Harsh reagents such as NaBH4 and NaOH were not used. The size-controlled synthesis of β-CD-capped AuNPs was achieved by changing the amount of seed solution. We fabricated monolayers of β-CD-capped AuNPs by liquid-liquid interfacial self-assembly for application in surface-enhanced Raman scattering (SERS). The SERS intensity is significantly improved by using larger β-CD-capped AuNPs. In addition, we found that β-CDs can detect pyrene with higher sensitivity than α-CDs on the basis of the difference in molecular recognition ability between α-CDs and β-CDs.
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Affiliation(s)
- Koichiro Saito
- Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST) Higashi 1-1-1, Tsukuba Ibaraki 305-8565 Japan
| | - Keegan McGehee
- Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST) Higashi 1-1-1, Tsukuba Ibaraki 305-8565 Japan
| | - Yasuo Norikane
- Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST) Higashi 1-1-1, Tsukuba Ibaraki 305-8565 Japan
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba Ibaraki 305-8571 Japan
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7
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Contessi S, Dalconi MC, Pollastri S, Calgaro L, Meneghini C, Ferrari G, Marcomini A, Artioli G. Cement-stabilized contaminated soil: Understanding Pb retention with XANES and Raman spectroscopy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 752:141826. [PMID: 32889270 DOI: 10.1016/j.scitotenv.2020.141826] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/05/2020] [Accepted: 08/18/2020] [Indexed: 06/11/2023]
Abstract
Cement-based stabilization is a widespread technique used for the treatment of contaminated soils. Despite its established application, the mechanisms involved in the stabilization of contaminants are not fully understood yet. This work aims to elucidate the fate of a real Pb contaminated soil amended with different binders, by studying Pb local environment prior and after the stabilization process. The study of a complex historically contaminated soil was coupled with the investigation of simplified artificial systems, developed to model Pb local structure in the unknown newly formed hybrid systems of soil and binders. The use of synchrotron-based element-specific X-ray absorption spectroscopy (XAS) permitted to probe the actual transformation of Pb environment in the real contaminated soil after the stabilization process. With the support of the model systems, we can propose as the main mechanism involved in Pb retention in sulfated soil treated with cement, the incorporation and/or adsorption of Pb on calcium silicate hydrates and ettringite.
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Affiliation(s)
- Silvia Contessi
- University of Padova, Department of Geosciences, Via Giovanni Gradenigo, 6, 35131 Padova, PD, Italy.
| | - Maria Chiara Dalconi
- University of Padova, Department of Geosciences, Via Giovanni Gradenigo, 6, 35131 Padova, PD, Italy
| | - Simone Pollastri
- Elettra synchrotron, XAFS beamline, s.s. 14 km 163,500 in Area Science Park, 34149 Basovizza, TS, Italy
| | - Loris Calgaro
- Ca' Foscari University of Venice, Department of Environmental Science, Informatics and Statistics, via Torino 155, 30172 Mestre, VE, Italy
| | - Carlo Meneghini
- University of Rome Tre, Department of Sciences, Viale G. Marconi 446, 00146 Roma, Italy
| | | | - Antonio Marcomini
- Ca' Foscari University of Venice, Department of Environmental Science, Informatics and Statistics, via Torino 155, 30172 Mestre, VE, Italy
| | - Gilberto Artioli
- University of Padova, Department of Geosciences, Via Giovanni Gradenigo, 6, 35131 Padova, PD, Italy
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8
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Wang S, Sun B, Feng J, An F, Li N, Wang H, Tian M. Development of affinity between target analytes and substrates in surface enhanced Raman spectroscopy for environmental pollutant detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:5657-5670. [PMID: 33226038 DOI: 10.1039/d0ay01760d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Environmental pollution has long been a social concern due to the variety of pollutants and their wide distribution, persistence and being detrimental to health. It is therefore necessary to develop rapid and sensitive strategies to trace and detect these compounds. Among various detection methodologies, surface enhanced Raman spectroscopy (SERS) has become an attractive option as it enables accurate analyte identification, simple sample preparation, rapid detection and ultra-high sensitivity without any interference from water. For SERS detection, an essential yet challenging step is the effective capture of target analytes onto the surface of metal nanostructures with a high intensity of enhanced electromagnetic field. This review has systematically summarized recent advances in developing affinity between targets and the surface of SERS substrates via direct adsorption, hydrophobic functional groups, boronate affinity, metal organic frameworks (MOFs), DNA aptamers and molecularly imprinted polymers (MIPs). At the end of this review, technical limitations and outlook have been provided, with suggestions on optimizing SERS techniques for real-world applications in environmental pollutant detection.
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Affiliation(s)
- Shiqiang Wang
- State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, Qingdao, Shandong 266071, People's Republic of China.
| | - Bing Sun
- State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, Qingdao, Shandong 266071, People's Republic of China.
| | - Junjie Feng
- State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, Qingdao, Shandong 266071, People's Republic of China.
| | - Fei An
- State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, Qingdao, Shandong 266071, People's Republic of China.
| | - Na Li
- State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, Qingdao, Shandong 266071, People's Republic of China.
| | - Haozhi Wang
- State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, Qingdao, Shandong 266071, People's Republic of China.
| | - Mingwei Tian
- Research Center for Intelligent and Wearable Technology, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
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9
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A versatile β-cyclodextrin functionalized silver nanoparticle monolayer for capture of methyl orange from complex wastewater. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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10
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Langer J, Jimenez de Aberasturi D, Aizpurua J, Alvarez-Puebla RA, Auguié B, Baumberg JJ, Bazan GC, Bell SEJ, Boisen A, Brolo AG, Choo J, Cialla-May D, Deckert V, Fabris L, Faulds K, García de Abajo FJ, Goodacre R, Graham D, Haes AJ, Haynes CL, Huck C, Itoh T, Käll M, Kneipp J, Kotov NA, Kuang H, Le Ru EC, Lee HK, Li JF, Ling XY, Maier SA, Mayerhöfer T, Moskovits M, Murakoshi K, Nam JM, Nie S, Ozaki Y, Pastoriza-Santos I, Perez-Juste J, Popp J, Pucci A, Reich S, Ren B, Schatz GC, Shegai T, Schlücker S, Tay LL, Thomas KG, Tian ZQ, Van Duyne RP, Vo-Dinh T, Wang Y, Willets KA, Xu C, Xu H, Xu Y, Yamamoto YS, Zhao B, Liz-Marzán LM. Present and Future of Surface-Enhanced Raman Scattering. ACS NANO 2020; 14:28-117. [PMID: 31478375 PMCID: PMC6990571 DOI: 10.1021/acsnano.9b04224] [Citation(s) in RCA: 1316] [Impact Index Per Article: 329.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 09/03/2019] [Indexed: 04/14/2023]
Abstract
The discovery of the enhancement of Raman scattering by molecules adsorbed on nanostructured metal surfaces is a landmark in the history of spectroscopic and analytical techniques. Significant experimental and theoretical effort has been directed toward understanding the surface-enhanced Raman scattering (SERS) effect and demonstrating its potential in various types of ultrasensitive sensing applications in a wide variety of fields. In the 45 years since its discovery, SERS has blossomed into a rich area of research and technology, but additional efforts are still needed before it can be routinely used analytically and in commercial products. In this Review, prominent authors from around the world joined together to summarize the state of the art in understanding and using SERS and to predict what can be expected in the near future in terms of research, applications, and technological development. This Review is dedicated to SERS pioneer and our coauthor, the late Prof. Richard Van Duyne, whom we lost during the preparation of this article.
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Affiliation(s)
- Judith Langer
- CIC
biomaGUNE and CIBER-BBN, Paseo de Miramón 182, Donostia-San Sebastián 20014, Spain
| | | | - Javier Aizpurua
- Materials
Physics Center (CSIC-UPV/EHU), and Donostia
International Physics Center, Paseo Manuel de Lardizabal 5, Donostia-San
Sebastián 20018, Spain
| | - Ramon A. Alvarez-Puebla
- Departamento
de Química Física e Inorgánica and EMaS, Universitat Rovira i Virgili, Tarragona 43007, Spain
- ICREA-Institució
Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, Barcelona 08010, Spain
| | - Baptiste Auguié
- School
of Chemical and Physical Sciences, Victoria
University of Wellington, PO Box 600, Wellington 6140, New Zealand
- The
MacDiarmid
Institute for Advanced Materials and Nanotechnology, PO Box 600, Wellington 6140, New Zealand
- The Dodd-Walls
Centre for Quantum and Photonic Technologies, PO Box 56, Dunedin 9054, New Zealand
| | - Jeremy J. Baumberg
- NanoPhotonics
Centre, Cavendish Laboratory, University
of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Guillermo C. Bazan
- Department
of Materials and Chemistry and Biochemistry, University of California, Santa
Barbara, California 93106-9510, United States
| | - Steven E. J. Bell
- School
of Chemistry and Chemical Engineering, Queen’s
University of Belfast, Belfast BT9 5AG, United Kingdom
| | - Anja Boisen
- Department
of Micro- and Nanotechnology, The Danish National Research Foundation
and Villum Foundation’s Center for Intelligent Drug Delivery
and Sensing Using Microcontainers and Nanomechanics, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Alexandre G. Brolo
- Department
of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC V8W 3 V6, Canada
- Center
for Advanced Materials and Related Technologies, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Jaebum Choo
- Department
of Chemistry, Chung-Ang University, Seoul 06974, South Korea
| | - Dana Cialla-May
- Leibniz
Institute of Photonic Technology Jena - Member of the research alliance “Leibniz Health Technologies”, Albert-Einstein-Str. 9, Jena 07745, Germany
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller University Jena, Helmholtzweg 4, Jena 07745, Germany
| | - Volker Deckert
- Leibniz
Institute of Photonic Technology Jena - Member of the research alliance “Leibniz Health Technologies”, Albert-Einstein-Str. 9, Jena 07745, Germany
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller University Jena, Helmholtzweg 4, Jena 07745, Germany
| | - Laura Fabris
- Department
of Materials Science and Engineering, Rutgers
University, 607 Taylor Road, Piscataway New Jersey 08854, United States
| | - Karen Faulds
- Department
of Pure and Applied Chemistry, University
of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, United Kingdom
| | - F. Javier García de Abajo
- ICREA-Institució
Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, Barcelona 08010, Spain
- The Barcelona
Institute of Science and Technology, Institut
de Ciencies Fotoniques, Castelldefels (Barcelona) 08860, Spain
| | - Royston Goodacre
- Department
of Biochemistry, Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L69 7ZB, United Kingdom
| | - Duncan Graham
- Department
of Pure and Applied Chemistry, University
of Strathclyde, Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, United Kingdom
| | - Amanda J. Haes
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Christy L. Haynes
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Christian Huck
- Kirchhoff
Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, Heidelberg 69120, Germany
| | - Tamitake Itoh
- Nano-Bioanalysis
Research Group, Health Research Institute, National Institute of Advanced Industrial Science and Technology, Takamatsu, Kagawa 761-0395, Japan
| | - Mikael Käll
- Department
of Physics, Chalmers University of Technology, Goteborg S412 96, Sweden
| | - Janina Kneipp
- Department
of Chemistry, Humboldt-Universität
zu Berlin, Brook-Taylor-Str. 2, Berlin-Adlershof 12489, Germany
| | - Nicholas A. Kotov
- Department
of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Hua Kuang
- Key Lab
of Synthetic and Biological Colloids, Ministry of Education, International
Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, China
- State Key
Laboratory of Food Science and Technology, Jiangnan University, JiangSu 214122, China
| | - Eric C. Le Ru
- School
of Chemical and Physical Sciences, Victoria
University of Wellington, PO Box 600, Wellington 6140, New Zealand
- The
MacDiarmid
Institute for Advanced Materials and Nanotechnology, PO Box 600, Wellington 6140, New Zealand
- The Dodd-Walls
Centre for Quantum and Photonic Technologies, PO Box 56, Dunedin 9054, New Zealand
| | - Hiang Kwee Lee
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
- Department
of Materials Science and Engineering, Stanford
University, Stanford, California 94305, United States
| | - Jian-Feng Li
- State Key
Laboratory of Physical Chemistry of Solid Surfaces, Collaborative
Innovation Center of Chemistry for Energy Materials, MOE Key Laboratory
of Spectrochemical Analysis & Instrumentation, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xing Yi Ling
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Stefan A. Maier
- Chair in
Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, Munich 80539, Germany
| | - Thomas Mayerhöfer
- Leibniz
Institute of Photonic Technology Jena - Member of the research alliance “Leibniz Health Technologies”, Albert-Einstein-Str. 9, Jena 07745, Germany
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller University Jena, Helmholtzweg 4, Jena 07745, Germany
| | - Martin Moskovits
- Department
of Chemistry & Biochemistry, University
of California Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Kei Murakoshi
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North 10 West 8, Kita-ku, Sapporo,
Hokkaido 060-0810, Japan
| | - Jwa-Min Nam
- Department
of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Shuming Nie
- Department of Bioengineering, University of Illinois at Urbana-Champaign, 1406 W. Green Street, Urbana, Illinois 61801, United States
| | - Yukihiro Ozaki
- Department
of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
| | | | - Jorge Perez-Juste
- Departamento
de Química Física and CINBIO, University of Vigo, Vigo 36310, Spain
| | - Juergen Popp
- Leibniz
Institute of Photonic Technology Jena - Member of the research alliance “Leibniz Health Technologies”, Albert-Einstein-Str. 9, Jena 07745, Germany
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller University Jena, Helmholtzweg 4, Jena 07745, Germany
| | - Annemarie Pucci
- Kirchhoff
Institute for Physics, University of Heidelberg, Im Neuenheimer Feld 227, Heidelberg 69120, Germany
| | - Stephanie Reich
- Department
of Physics, Freie Universität Berlin, Berlin 14195, Germany
| | - Bin Ren
- State Key
Laboratory of Physical Chemistry of Solid Surfaces, Collaborative
Innovation Center of Chemistry for Energy Materials, MOE Key Laboratory
of Spectrochemical Analysis & Instrumentation, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - George C. Schatz
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Timur Shegai
- Department
of Physics, Chalmers University of Technology, Goteborg S412 96, Sweden
| | - Sebastian Schlücker
- Physical
Chemistry I, Department of Chemistry and Center for Nanointegration
Duisburg-Essen, University of Duisburg-Essen, Essen 45141, Germany
| | - Li-Lin Tay
- National
Research Council Canada, Metrology Research
Centre, Ottawa K1A0R6, Canada
| | - K. George Thomas
- School
of Chemistry, Indian Institute of Science
Education and Research Thiruvananthapuram, Vithura Thiruvananthapuram 695551, India
| | - Zhong-Qun Tian
- State Key
Laboratory of Physical Chemistry of Solid Surfaces, Collaborative
Innovation Center of Chemistry for Energy Materials, MOE Key Laboratory
of Spectrochemical Analysis & Instrumentation, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Richard P. Van Duyne
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Tuan Vo-Dinh
- Fitzpatrick
Institute for Photonics, Department of Biomedical Engineering, and
Department of Chemistry, Duke University, 101 Science Drive, Box 90281, Durham, North Carolina 27708, United States
| | - Yue Wang
- Department
of Chemistry, College of Sciences, Northeastern
University, Shenyang 110819, China
| | - Katherine A. Willets
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Chuanlai Xu
- Key Lab
of Synthetic and Biological Colloids, Ministry of Education, International
Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, China
- State Key
Laboratory of Food Science and Technology, Jiangnan University, JiangSu 214122, China
| | - Hongxing Xu
- School
of Physics and Technology and Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Yikai Xu
- School
of Chemistry and Chemical Engineering, Queen’s
University of Belfast, Belfast BT9 5AG, United Kingdom
| | - Yuko S. Yamamoto
- School
of Materials Science, Japan Advanced Institute
of Science and Technology, Nomi, Ishikawa 923-1292, Japan
| | - Bing Zhao
- State Key
Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE and CIBER-BBN, Paseo de Miramón 182, Donostia-San Sebastián 20014, Spain
- Ikerbasque,
Basque Foundation for Science, Bilbao 48013, Spain
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11
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de Nijs B, Carnegie C, Szabó I, Grys DB, Chikkaraddy R, Kamp M, Barrow SJ, Readman CA, Kleemann ME, Scherman OA, Rosta E, Baumberg JJ. Inhibiting Analyte Theft in Surface-Enhanced Raman Spectroscopy Substrates: Subnanomolar Quantitative Drug Detection. ACS Sens 2019; 4:2988-2996. [PMID: 31565921 PMCID: PMC6878213 DOI: 10.1021/acssensors.9b01484] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
![]()
Quantitative applications of surface-enhanced
Raman spectroscopy
(SERS) often rely on surface partition layers grafted to SERS substrates
to collect and trap-solvated analytes that would not otherwise adsorb
onto metals. Such binding layers drastically broaden the scope of
analytes that can be probed. However, excess binding sites introduced
by this partition layer also trap analytes outside the plasmonic “hotspots”.
We show that by eliminating these binding sites, limits of detection
(LODs) can effectively be lowered by more than an order of magnitude.
We highlight the effectiveness of this approach by demonstrating quantitative
detection of controlled drugs down to subnanomolar concentrations
in aqueous media. Such LODs are low enough to screen, for example,
urine at clinically relevant levels. These findings provide unique
insights into the binding behavior of analytes, which are essential
when designing high-performance SERS substrates.
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Affiliation(s)
- Bart de Nijs
- NanoPhotonics Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thompson Avenue, Cambridge CB3 0HE, U.K
| | - Cloudy Carnegie
- NanoPhotonics Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thompson Avenue, Cambridge CB3 0HE, U.K
| | - István Szabó
- Department of Chemistry, King’s College London, 7 Trinity Street, London SE1 1DB, U.K
| | - David-Benjamin Grys
- NanoPhotonics Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thompson Avenue, Cambridge CB3 0HE, U.K
| | - Rohit Chikkaraddy
- NanoPhotonics Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thompson Avenue, Cambridge CB3 0HE, U.K
| | - Marlous Kamp
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Steven J. Barrow
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Charlie A. Readman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Marie-Elena Kleemann
- NanoPhotonics Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thompson Avenue, Cambridge CB3 0HE, U.K
| | - Oren A. Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Edina Rosta
- Department of Chemistry, King’s College London, 7 Trinity Street, London SE1 1DB, U.K
| | - Jeremy J. Baumberg
- NanoPhotonics Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thompson Avenue, Cambridge CB3 0HE, U.K
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12
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Renard D, Tian S, Ahmadivand A, DeSantis CJ, Clark BD, Nordlander P, Halas NJ. Polydopamine-Stabilized Aluminum Nanocrystals: Aqueous Stability and Benzo[a]pyrene Detection. ACS NANO 2019; 13:3117-3124. [PMID: 30807101 DOI: 10.1021/acsnano.8b08445] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Aluminum nanocrystals have emerged as an earth-abundant material for plasmonics applications. Al nanocrystals readily oxidize in aqueous-based solutions, however, transforming into highly stratified γ-AlOOH nanoparticles with a 700% increase in surface area in a matter of minutes. Here we show that by functionalizing Al nanocrystals with the bioinspired polymer polydopamine, their stability in aqueous media is dramatically increased, maintaining their integrity in aqueous solution for over 2 weeks with no discernible structural changes. Polydopamine functionalization also provides a molecular capture layer that enables the capture of polycyclic aromatic hydrocarbon pollutants in H2O samples and their detection by surface-enhanced Raman spectroscopy, when polydopamine-stabilized Al nanocrystal aggregates are used as substrates. This approach was used to detect a prime carcinogenic H2O pollutant, benzo[a]pyrene with a sensitivity in the sub part-per-billion range.
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13
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Gao Y, Li L, Zhang X, Wang X, Ji W, Zhao J, Ozaki Y. CTAB-triggered Ag aggregates for reproducible SERS analysis of urinary polycyclic aromatic hydrocarbon metabolites. Chem Commun (Camb) 2019; 55:2146-2149. [DOI: 10.1039/c8cc09008d] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We have demonstrated a simple SERS assay for urinary hydroxylated polycyclic aromatic hydrocarbons (OH-PAHs) with high sensitivity and reproducibility.
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Affiliation(s)
- Ye Gao
- School of Chemistry, Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Linfang Li
- School of Chemistry, Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Xue Zhang
- School of Chemistry, Dalian University of Technology
- Dalian 116024
- P. R. China
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology
- Dalian 116024
| | - Xinnan Wang
- School of Chemistry, Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Wei Ji
- School of Chemistry, Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yukihiro Ozaki
- School of Science and Technology, Kwansei Gakuin University
- Sanda
- Japan
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14
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Peltomaa R, Glahn-Martínez B, Benito-Peña E, Moreno-Bondi MC. Optical Biosensors for Label-Free Detection of Small Molecules. SENSORS (BASEL, SWITZERLAND) 2018; 18:E4126. [PMID: 30477248 PMCID: PMC6308632 DOI: 10.3390/s18124126] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/20/2018] [Accepted: 11/21/2018] [Indexed: 12/12/2022]
Abstract
Label-free optical biosensors are an intriguing option for the analyses of many analytes, as they offer several advantages such as high sensitivity, direct and real-time measurement in addition to multiplexing capabilities. However, development of label-free optical biosensors for small molecules can be challenging as most of them are not naturally chromogenic or fluorescent, and in some cases, the sensor response is related to the size of the analyte. To overcome some of the limitations associated with the analysis of biologically, pharmacologically, or environmentally relevant compounds of low molecular weight, recent advances in the field have improved the detection of these analytes using outstanding methodology, instrumentation, recognition elements, or immobilization strategies. In this review, we aim to introduce some of the latest developments in the field of label-free optical biosensors with the focus on applications with novel innovations to overcome the challenges related to small molecule detection. Optical label-free methods with different transduction schemes, including evanescent wave and optical fiber sensors, surface plasmon resonance, surface-enhanced Raman spectroscopy, and interferometry, using various biorecognition elements, such as antibodies, aptamers, enzymes, and bioinspired molecularly imprinted polymers, are reviewed.
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Affiliation(s)
- Riikka Peltomaa
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - Bettina Glahn-Martínez
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - Elena Benito-Peña
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - María C Moreno-Bondi
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
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15
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Szlag VM, Rodriguez RS, He J, Hudson-Smith N, Kang H, Le N, Reineke TM, Haynes CL. Molecular Affinity Agents for Intrinsic Surface-Enhanced Raman Scattering (SERS) Sensors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31825-31844. [PMID: 30134102 DOI: 10.1021/acsami.8b10303] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Research at the interface of synthetic materials, biochemistry, and analytical techniques has enabled sensing platforms for applications across many research communities. Herein we review the materials used as affinity agents to create surface-enhanced Raman spectroscopy (SERS) sensors. Our scope includes those affinity agents (antibody, aptamer, small molecule, and polymer) that facilitate the intrinsic detection of targets relevant to biology, medicine, national security, environmental protection, and food safety. We begin with an overview of the analytical technique (SERS) and considerations for its application as a sensor. We subsequently describe four classes of affinity agents, giving a brief overview on affinity, production, attachment chemistry, and first uses with SERS. Additionally, we review the SERS features of the affinity agents, and the analytes detected by intrinsic SERS with that affinity agent class. We conclude with remarks on affinity agent selection for intrinsic SERS sensing platforms.
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Affiliation(s)
- Victoria M Szlag
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Rebeca S Rodriguez
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Jiayi He
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Natalie Hudson-Smith
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Hyunho Kang
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Ngoc Le
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Theresa M Reineke
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Christy L Haynes
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455 , United States
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16
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Montes-García V, Rodal-Cedeira S, Cordero-Ferradás MJ, Gómez B, García-Río L, Pastoriza-Santos I, Pérez-Juste J. Pillar[5]arene-stabilized Plasmonic Nanoparticles as Selective SERS Sensors. Isr J Chem 2018. [DOI: 10.1002/ijch.201800041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Verónica Montes-García
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
| | - Sergio Rodal-Cedeira
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
| | - María José Cordero-Ferradás
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
| | - Borja Gómez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Física; Universidade de Santiago; 15782 Santiago Spain
| | - Luis García-Río
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Física; Universidade de Santiago; 15782 Santiago Spain
| | - Isabel Pastoriza-Santos
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
| | - Jorge Pérez-Juste
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
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17
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Eremina OE, Semenova AA, Sergeeva EA, Brazhe NA, Maksimov GV, Shekhovtsova TN, Goodilin EA, Veselova IA. Surface-enhanced Raman spectroscopy in modern chemical analysis: advances and prospects. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4804] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Gu X, Trujillo MJ, Olson JE, Camden JP. SERS Sensors: Recent Developments and a Generalized Classification Scheme Based on the Signal Origin. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2018; 11:147-169. [PMID: 29547340 DOI: 10.1146/annurev-anchem-061417-125724] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Owing to its extreme sensitivity and easy execution, surface-enhanced Raman spectroscopy (SERS) now finds application for a wide variety of problems requiring sensitive and targeted analyte detection. This widespread application has prompted a proliferation of different SERS-based sensors, suggesting the need for a framework to classify existing methods and guide the development of new techniques. After a brief discussion of the general SERS modalities, we classify SERS-based sensors according the origin of the signal. Three major categories emerge from this analysis: surface-affinity strategy, SERS-tag strategy, and probe-mediated strategy. For each case, we describe the mechanism of action, give selected examples, and point out general misconceptions to aid the construction of new devices. We hope this review serves as a useful tutorial guide and helps readers to better classify and design practical and effective SERS-based sensors.
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Affiliation(s)
- Xin Gu
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA;
| | - Michael J Trujillo
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA;
| | - Jacob E Olson
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA;
| | - Jon P Camden
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA;
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19
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Hayashi K, Mitsuyoshi Y, Kamei T, Shimanouchi T, Suga K, Okamoto Y, Nakamura H, Umakoshi H. Design of Pyrene-Fatty Acid Conjugates for Real-Time Monitoring of Drug Delivery and Controllability of Drug Release. ACS OMEGA 2018; 3:3572-3580. [PMID: 30023872 PMCID: PMC6044695 DOI: 10.1021/acsomega.7b02061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 03/15/2018] [Indexed: 06/08/2023]
Abstract
Fluorescence probes are usually employed to analyze pharmacokinetics of drug carriers; however, this method using usual probes is not suitable to monitor drug carriers in detail because fluorescence spectra do not change by the disruption of drug carriers. In this study, pyrene-fatty acid conjugates were investigated as probes to monitor the state of drug carriers in real time. 1-Pyrenemethanol was conjugated with fatty acids, such as lauric acid, stearic acid, and behenic acid, and the conjugates were stirred in ethanol, resulting in the formation of submicron particles; these particles exhibited excimer emission. When J774.1 and Colon 26 cells were treated with these particles, the associated fluorescence spectra shifted from excimer emission to monomer emission. Moreover, the degree of change was controlled by the type of fatty acid. These results support the design of drug carriers that can be used to monitor pharmacokinetics in real time and to control the disruption time.
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Affiliation(s)
- Keita Hayashi
- Department
of Chemical Engineering, National Institute
of Technology, Nara College, 22 Yata-cho, Yamatokoriyama, Nara 639-1080, Japan
| | - Yuma Mitsuyoshi
- Department
of Chemical Engineering, National Institute
of Technology, Nara College, 22 Yata-cho, Yamatokoriyama, Nara 639-1080, Japan
| | - Toshiyuki Kamei
- Department
of Chemical Engineering, National Institute
of Technology, Nara College, 22 Yata-cho, Yamatokoriyama, Nara 639-1080, Japan
| | - Toshinori Shimanouchi
- Department
of Material and Energy Science, Graduate School of Environmental Science, Okayama University, 3-1-1 Tsushima-Naka, Okayama 700-8530, Japan
| | - Keishi Suga
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Yukihiro Okamoto
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Hidemi Nakamura
- Department
of Chemical Engineering, National Institute
of Technology, Nara College, 22 Yata-cho, Yamatokoriyama, Nara 639-1080, Japan
| | - Hiroshi Umakoshi
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
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20
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Xie Y, Meng Y, Wu M. Visible-light-driven self-cleaning SERS substrate of silver nanoparticles and graphene oxide decorated nitrogen-doped titania nanotube array. SURF INTERFACE ANAL 2016. [DOI: 10.1002/sia.5964] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yibing Xie
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 China
- Suzhou Research Institute of Southeast University; Suzhou 215123 China
| | - Yujie Meng
- School of Chemistry and Chemical Engineering; Southeast University; Nanjing 211189 China
- Suzhou Research Institute of Southeast University; Suzhou 215123 China
| | - Miao Wu
- Zhejiang Provincial Hospital of TCM; Hangzhou 310006 China
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21
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Xia D, Guo Q, Ge M, Yuan Y, Xu M, Yao J. On-line sensitive detection of aromatic vapor through PDMS/C3H7S-assisted SERS amplification. RSC Adv 2016. [DOI: 10.1039/c6ra10525d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A PDMS/C3H7S-assisted SERS amplification method was developed for on-line detection of aromatic vapor. This approach provides a rapid, efficient route to significantly improve the capture and immobilization of vapor molecules on the plasmonic surface in the flowing system.
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Affiliation(s)
- Di Xia
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Qinghua Guo
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Ming Ge
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Yaxian Yuan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Minmin Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Jianlin Yao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
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22
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Shi X, Liu S, Han X, Ma J, Jiang Y, Yu G. High-Sensitivity Surface-Enhanced Raman Scattering (SERS) Substrate Based on a Gold Colloid Solution with a pH Change for Detection of Trace-Level Polycyclic Aromatic Hydrocarbons in Aqueous Solution. APPLIED SPECTROSCOPY 2015; 69:574-579. [PMID: 25909769 DOI: 10.1366/14-07614r] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, a gold colloid solution whose parameters were optimized, and without any surfactants, was developed as a surface-enhanced Raman scattering (SERS) substrate for the detection of trace-level polycyclic aromatic hydrocarbons (PAHs). A gold colloid solution with 57 nm gold particles and pH 13 was prepared to be the SERS substrate. It had impressive enhancement that was two orders of magnitude higher than that of a gold colloid solution with 57 nm gold particles and without pH change (pH 6). Even with a compact field-based Raman spectrometer, naphthalene, phenanthrene, anthracene, fluoranthene, and pyrene were detected, with limits of detection at 6.8 nM, 3.4 nM, 1.8 nM, 0.68 nM (680 pM), and 0.44 nM (440 pM), respectively. The significant enhancement was ascribed to an electromagnetic mechanism and a charge-transfer mechanism. Quantitative analyses for these five PAHs in water were also performed. The SERS intensities of PAHs were found to have good linear dependence relations with the concentrations in low concentration. This high-sensitivity, easily prepared substrate offers a promising technology for the quantitative detection of trace-level PAHs.
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Affiliation(s)
- Xiaofeng Shi
- Optics and Optoelectronics Laboratory, Ocean University of China, Qingdao 266100, China
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23
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Wang X, Hao W, Zhang H, Pan Y, Kang Y, Zhang X, Zou M, Tong P, Du Y. Analysis of polycyclic aromatic hydrocarbons in water with gold nanoparticles decorated hydrophobic porous polymer as surface-enhanced Raman spectroscopy substrate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 139:214-221. [PMID: 25561300 DOI: 10.1016/j.saa.2014.11.104] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 11/22/2014] [Accepted: 11/25/2014] [Indexed: 06/04/2023]
Abstract
A method for surface-enhanced Raman spectroscopy (SERS) sensing of polycyclic aromatic hydrocarbons (PAHs) is reported. Gold nanoparticles (AuNPs) decorated hydrophobic porous glycidyl methacrylate-ethylene dimethacrylate (GMA-EDMA) polymer is developed as the SERS substrate. GMA-EDMA material with porosity and permeability shows rapid and efficient adsorption of PAHs through presumed hydrophobic interaction, which brings the analytes close to the substrate. Meanwhile, the three dimensional porous morphology might benefit AuNPs distribution for high SERS enhancement. Studies on the effects of AuNPs surface coverage on the substrate and time of PAHs-substrate interaction are presented. The qualitative analysis and quantitative tendency of this method for PAHs detection are investigated with anthracene, phenanthrene and pyrene as probe molecules, showing that the characteristic fingerprint vibrational peaks of each PAH can be readily identified, and the limit of detections are 0.93×10(-7), 4.5×10(-7) and 1.1×10(-7) M respectively. Moreover, the substrate exhibits high reproducibility with the relative standard deviation about 16% in spot and spot SERS intensity. Using this method for rapid screening of PAHs mixture in some water samples are performed well, which might be useful for environmental pollutions monitoring.
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Affiliation(s)
- Xuan Wang
- Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China
| | - Weimin Hao
- Department of Biological Engineering, Heilongjiang Agricultural and Technical College, Jiamusi, Heilongjiang Province 154007, PR China
| | - Han Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yingcheng Pan
- Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yan Kang
- Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China
| | - Xiaofang Zhang
- Chinese Academy of Inspection and Quarantine, Beijing 100123, PR China
| | - Mingqiang Zou
- Chinese Academy of Inspection and Quarantine, Beijing 100123, PR China
| | - Peijin Tong
- Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yiping Du
- Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China.
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Gu HX, Xue L, Zhang YF, Li DW, Long YT. Facile fabrication of a silver dendrite-integrated chip for surface-enhanced Raman scattering. ACS APPLIED MATERIALS & INTERFACES 2015; 7:2931-6. [PMID: 25569304 DOI: 10.1021/am508403k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A facile approach to fabricating a surface-enhanced Raman scattering (SERS)-active chip by integrating silver dendrites with copper substrate through a one-step process was explored. The structures of dendrites were synthesized and controlled by an AgNO3/PVP aqueous system, and the fabrication parameters amount of AgNO3/PVP and reaction time were systematically investigated. The optimized silver dendrites, closely aggregated on the surface of the copper chip, exhibited high SERS activity for detecting rhodamine 6G at a concentration as low as 3.2 × 10(-11) M. Meanwhile, the prepared SERS-active chip displayed a high thermal stability and good reproducibility. Moreover, the potential application for analysis of polycyclic aromatic hydrocarbons was demonstrated by detection of fluoranthene at a low concentration of 4.5 × 10(-10) M. This SERS-active chip prepared by the convenient and high-yield method would be a promising means for rapid detection under field conditions.
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Affiliation(s)
- Hai-Xin Gu
- Key Laboratory for Advanced Materials and Department of Chemistry, East China University of Science and Technology , Shanghai 200237, P. R. China
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25
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Jiang M, Qian Z, Zhou X, Xin X, Wu J, Chen C, Zhang G, Xu G, Cheng Y. CTAB micelles assisted rGO–AgNP hybrids for SERS detection of polycyclic aromatic hydrocarbons. Phys Chem Chem Phys 2015; 17:21158-63. [DOI: 10.1039/c4cp04888a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile and convenient strategy to detect polycyclic aromatic hydrocarbons is presented, using graphene–Ag nanoparticle hybrids as a surface-enhanced Raman scattering substrate.
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Affiliation(s)
- Meng Jiang
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Zhijiang Qian
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Xufeng Zhou
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Xing Xin
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Jinghua Wu
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Chao Chen
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Gongjun Zhang
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Gaojie Xu
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Yuchuan Cheng
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
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26
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Qian C, Guo Q, Xu M, Yuan Y, Yao J. Improving the SERS detection sensitivity of aromatic molecules by a PDMS-coated Au nanoparticle monolayer film. RSC Adv 2015. [DOI: 10.1039/c5ra07324c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, we reported a facile strategy to fabricate a PDMS film-coated Au nanoparticle monolayer film (Au MLF) composite substrate for improving SERS detection of aromatic molecules in water and in the atmosphere.
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Affiliation(s)
- Chen Qian
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Qinghua Guo
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Minmin Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Yaxian Yuan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Jianlin Yao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
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27
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Liu C, Zhang X, Li L, Cui J, Shi YE, Wang L, Zhan J. Silver nanoparticle aggregates on metal fibers for solid phase microextraction–surface enhanced Raman spectroscopy detection of polycyclic aromatic hydrocarbons. Analyst 2015; 140:4668-75. [DOI: 10.1039/c5an00590f] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver–copper fibers loaded with silver nanoparticles are used for SPME–SERS detection of polycyclic aromatic hydrocarbons, which can be further confirmed by GC-MS.
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Affiliation(s)
- Cuicui Liu
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
| | - Xiaoli Zhang
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
| | - Limei Li
- Department of Physics
- Xiamen University
- Xiamen Fujian
- P. R. China
| | - Jingcheng Cui
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
| | - Yu-e Shi
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
| | - Le Wang
- Center of Technology
- Jinan Entry-Exit Inspection and Quarantine Bureau
- Jinan 250014
- China
| | - Jinhua Zhan
- National Engineering Research Center for Colloidal Materials and Key Laboratory for Colloid & Interface Chemistry of Education Ministry
- Department of Chemistry
- Shandong University
- Jinan Shandong
- P. R. China
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28
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Bao ZY, Liu X, Chen Y, Wu Y, Chan HLW, Dai J, Lei DY. Quantitative SERS detection of low-concentration aromatic polychlorinated biphenyl-77 and 2,4,6-trinitrotoluene. JOURNAL OF HAZARDOUS MATERIALS 2014; 280:706-712. [PMID: 25232653 DOI: 10.1016/j.jhazmat.2014.08.058] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 08/09/2014] [Accepted: 08/27/2014] [Indexed: 06/03/2023]
Abstract
This paper reports a simple label-free high-sensitive method for detecting low-concentration persistent organic pollutants and explosive materials. The proposed method combines surface-enhanced Raman spectroscopy (SERS) and magnetomotive enrichment of the target molecules on the surface of Ag nanoparticles (NPs). This structure can be achieved through self-assembling integration of Ag NPs with ferromagnetic Fe3O4 microspheres, forming a hybrid SERS nanoprobe with both optical and magnetic properties. Moreover, the magnetic response of ferromagnetic Fe3O4 microspheres can be used to dynamically modulate the optical property of Ag NPs through controlling their geometric arrangement on the substrate by applying an external magnetic field. It is also demonstrated from the full-wave numerical simulation results that the maximum electromagnetic field enhancement can be greatly increased by shortening the distance of neighboring Ag NPs and therefore resulting in an improved SERS detecting limit. More importantly, by using the prepared substrate, the SERS signals from organic pollution substances, i.e. aromatic polychlorinated biphenyl-77 and 2,4,6-trinitrotoluene, were quantitatively analyzed.
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Affiliation(s)
- Zhi Yong Bao
- Department of Applied Physics, Hong Kong Polytechnic University, Hong Kong, China
| | - Xin Liu
- Department of Applied Physics, Hong Kong Polytechnic University, Hong Kong, China; Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province, College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan, China
| | - Y Chen
- Department of Applied Physics, Hong Kong Polytechnic University, Hong Kong, China
| | - Yucheng Wu
- College of Material Science and Engineering, Hefei University of Technology, Hefei, China
| | - Helen L W Chan
- Department of Applied Physics, Hong Kong Polytechnic University, Hong Kong, China
| | - Jiyan Dai
- Department of Applied Physics, Hong Kong Polytechnic University, Hong Kong, China.
| | - Dang Yuan Lei
- Department of Applied Physics, Hong Kong Polytechnic University, Hong Kong, China; Shenzhen Research Institute, Hong Kong Polytechnic University, Shenzhen, China.
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Xu J, Du J, Jing C, Zhang Y, Cui J. Facile detection of polycyclic aromatic hydrocarbons by a surface-enhanced Raman scattering sensor based on the Au coffee ring effect. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6891-7. [PMID: 24720732 DOI: 10.1021/am500705a] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Surface-enhanced Raman scattering (SERS) analysis of environmental hydrophobic pollutants without chemical functionalization of a bare nanoparticle (NP) substrate presents a challenge. The motivation for our study is to develop a highly reproducible and robust portable SERS sensor for detection and identification of polycyclic aromatic hydrocarbons (PAHs) using bare Au NPs. Our hypothesis is that the coffee ring effect could separate PAHs from the bulk solution and concentrate them on the closely packed Au NP ring, consequently enhancing their Raman scattering. This premise was confirmed with the commonly used citrate-reduced Au NPs in 20 nm, having no structural uniqueness. Because of the coffee ring effect, however, closely packed but not aggregated Au NP arrays were formed and, consequently, facilitated the separation and concentration of hydrophobic PAHs. As a result, a prominent SERS enhancement can be obtained on the ring because of the electromagnetic mechanism. A mixture of six PAHs with different numbers of benzene rings, namely, naphthalene, anthracene, pyrene, benzo[a]pyrene, benzo[g,h,i]perylene, and indeno[1,2,3-cd]pyrene, could be readily identified in river water. This portable SERS sensor based on the coffee ring effect provides a robust and versatile approach in PAH detection without the need for stringent structural requirements for Au NPs.
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Affiliation(s)
- Jianwei Xu
- College of Architecture and Environment, Sichuan University , Chengdu 610065, People's Republic of China
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30
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Li DW, Zhai WL, Li YT, Long YT. Recent progress in surface enhanced Raman spectroscopy for the detection of environmental pollutants. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1115-3] [Citation(s) in RCA: 203] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Ma C, Harris JM. Surface-enhanced Raman spectroscopy detection of ionic solutes by surfactant-mediated adsorption to a hydrophobic surface. APPLIED SPECTROSCOPY 2013; 67:801-807. [PMID: 23816133 DOI: 10.1366/13-07010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Chemical modification of the surfaces of surface-enhanced Raman spectroscopy (SERS)-active metals with thin molecular layers expands the variety of molecular species that can be attracted to the SERS surface from solution. This approach can provide selective detection of new classes of molecules that would not otherwise be detectable through direct interaction with a SERS-active metal. For example, polycyclic aromatic compounds can be attracted from aqueous solution to gold or silver SERS substrates that are modified with alkylsilanes or alkanethiols. While n-alkane monolayers attract hydrophobic solutes to a SERS-active surface, they are not well suited to adsorbing more water-soluble, ionized species from solution. In this work, we address SERS detection of ionic solutes by applying the principles of ion-interaction chromatography, where a charged surfactant is added to solution and adsorbs to an n-alkane-modified, SERS-active surface. The adsorbed charged surfactant serves to attract an ionic solute of opposite charge to the surface, where it can be detected. This concept was tested with a model anionic solute, 3-nitrobenzenesulfonate (NBS(-)), with a cationic surfactant, cetylpyridinium (CP(+)), that adsorbs to a 1-dodecanethiol (C12)-modified silver surface. The interfacial populations of both the surfactant and anionic solute can be determined simultaneously from SERS spectra. The adsorption equilibrium of CP(+) to the C12 surface was fit to a Langmuir model, and the effect of supporting electrolyte on its adsorption equilibria was also investigated by SERS. The retention of NBS(-) at the C12 surface depends on the concentration of CP(+). The binding of NBS(-) to adsorbed CP(+) is described by an ion-interaction model that includes competition for the NBS(-) population due to association with surfactant ions in solution. While the strength of this binding interaction is not as great as the hydrophobic interactions that drive aromatic hydrocarbons to hydrophobic SERS surfaces, SERS detection of analyte ions by this approach could be accomplished at concentrations two orders of magnitude lower compared with Raman detection in free solution.
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Affiliation(s)
- Chaoxiong Ma
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT 84112, USA
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32
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Qu LL, Li YT, Li DW, Xue JQ, Fossey JS, Long YT. Humic acids-based one-step fabrication of SERS substrates for detection of polycyclic aromatic hydrocarbons. Analyst 2013; 138:1523-8. [DOI: 10.1039/c2an36764e] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Gu X, Tian S, Zhou Q, Adkins J, Gu Z, Li X, Zheng J. SERS detection of polycyclic aromatic hydrocarbons on a bowl-shaped silver cavity substrate. RSC Adv 2013. [DOI: 10.1039/c3ra43442g] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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34
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An Q, Zhang P, Li JM, Ma WF, Guo J, Hu J, Wang CC. Silver-coated magnetite-carbon core-shell microspheres as substrate-enhanced SERS probes for detection of trace persistent organic pollutants. NANOSCALE 2012; 4:5210-5216. [PMID: 22772658 DOI: 10.1039/c2nr31061a] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Highly active surface-enhanced Raman scattering (SERS) substrates of Ag nanoparticle (Ag-NP) modified Fe(3)O(4)@carbon core-shell microspheres were synthesized and characterized. The carbon coated Fe(3)O(4) microspheres were prepared via a one-pot solvothermal method and were served as the magnetic supporting substrates. The Ag-NPs were deposited by in situ reduction of AgNO(3) with butylamine and the thickness of the Ag-NP layer was variable by controlling the AgNO(3) concentrations. The structure and integrity of the Fe(3)O(4)@C@Ag composite microspheres were confirmed by TEM, XRD, VSM and UV-visible spectroscopy. In particular, the Ag-NP coated Fe(3)O(4)@carbon core-shell microspheres were shown to be highly active for SERS detections of pentachlorophenol (PCP), diethylhexyl phthalate (DEHP) and trinitrotoluene (TNT). These analytes are representatives of environmentally persistent organic pollutants with typically low SERS activities. The results suggested that the interactions between the carbon on the microsphere substrates and the aromatic cores of the target molecules contributed to the facile pre-concentration of the analytes near the Ag-NP surfaces.
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Affiliation(s)
- Qiao An
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China
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Mueller M, Tebbe M, Andreeva DV, Karg M, Alvarez Puebla RA, Pazos Perez N, Fery A. Large-area organization of pNIPAM-coated nanostars as SERS platforms for polycyclic aromatic hydrocarbons sensing in gas phase. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:9168-9173. [PMID: 22381053 DOI: 10.1021/la300454q] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Here, a new surface enhanced Raman spectroscopy (SERS) platform suitable for gas phase sensing based on the extended organization of poly-N-isopropylacrylamide (pNIPAM)-coated nanostars over large areas is presented. This system yields high and homogeneous SERS intensities, and simultaneously traps organic chemical agents as pollutants from the gas phase. pNIPAM-coated gold nanostars were organized into parallel linear arrays. The optical properties of the fabricated substrates are investigated, and applicability for advanced sensing is demonstrated through the detection in the gas phase of pyrene traces, a well-known polyaromatic hydrocarbon.
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Affiliation(s)
- Mareen Mueller
- Physical Chemistry II Department, University of Bayreuth, 95440, Bayreuth, Germany
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LI SIYUE, WANG MIN. BRANCHED METAL NANOPARTICLES: A REVIEW ON WET-CHEMICAL SYNTHESIS AND BIOMEDICAL APPLICATIONS. ACTA ACUST UNITED AC 2012. [DOI: 10.1142/s1793984411000311] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Branched metal nanoparticles present a promising new class of materials, which have great potential as sensors, catalysts, drug carriers, and imaging agents, owing to their unique nanostructures, physicochemical properties, optical properties, and other characteristics. Many efforts have recently been devoted to the wet-chemical synthesis of branched metal nanoparticles. Seed-mediated growth and seedless growth are two main routes for producing branched metal nanoparticles. Most particle synthesis methods can be modified for different metal systems. In this review, various synthesis methods for the fabrication of branched monometallic, bimetallic, and multimetallic nanoparticles and also branched polymer core-metal nanoshell composite nanoparticles are summarized, catagorized, and discussed. The relevance and performance of such nanostructured materials with regard to their optical properties which arise from localized surface plasmon resonances are summarized, and their potential as excellent substrates for surface enhanced Raman scattering (SERS) is reviewed. Other applications of branched nanoparticles such as drug delivery vehicle, medical imaging agent, catalysis, and magnetism are briefly introduced.
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Affiliation(s)
- SI YUE LI
- Department of Mechanical Engineering, Faculty of Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - MIN WANG
- Department of Mechanical Engineering, Faculty of Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong
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37
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Alvarez-Puebla RA, Liz-Marzán LM. Traps and cages for universal SERS detection. Chem Soc Rev 2012; 41:43-51. [DOI: 10.1039/c1cs15155j] [Citation(s) in RCA: 264] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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38
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Jiang X, Lai Y, Yang M, Yang H, Jiang W, Zhan J. Silver nanoparticle aggregates on copper foil for reliable quantitative SERS analysis of polycyclic aromatic hydrocarbons with a portable Raman spectrometer. Analyst 2012; 137:3995-4000. [DOI: 10.1039/c2an35713e] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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He L, Deen B, Rodda T, Ronningen I, Blasius T, Haynes C, Diez-Gonzalez F, Labuza TP. Rapid Detection of Ricin in Milk Using Immunomagnetic Separation Combined with Surface-Enhanced Raman Spectroscopy. J Food Sci 2011; 76:N49-53. [DOI: 10.1111/j.1750-3841.2011.02196.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Contreras-Cáceres R, Abalde-Cela S, Guardia-Girós P, Fernández-Barbero A, Pérez-Juste J, Alvarez-Puebla RA, Liz-Marzán LM. Multifunctional microgel magnetic/optical traps for SERS ultradetection. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:4520-4525. [PMID: 21438515 DOI: 10.1021/la200266e] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report on the fabrication of a SERS substrate comprising magnetic and silver particles encapsulated within a poly(N-isopropylacrylamide) (pNIPAM) thermoresponsive microgel. This colloidal substrate has the ability to adsorb analytes from solution while it is expanded (low temperature) and reversibly generate hot spots upon collapse (high temperature or drying). Additionally, the magnetic functionality permits concentration of the composite particles into small spatial regions, which can be exploited to decrease the amount of material per analysis while improving its SERS detection limit. Proof of concept for the sequestration of uncommon molecular systems is demonstrated through the first SERS analysis of pentachlorophenol (PCP), a chlorinated ubiquitous environmental pollutant.
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Affiliation(s)
- Rafael Contreras-Cáceres
- Departamento de Química Física, and Unidad Asociada CSIC-Universidade de Vigo, 36310, Vigo, Spain
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41
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Fan M, Andrade GFS, Brolo AG. A review on the fabrication of substrates for surface enhanced Raman spectroscopy and their applications in analytical chemistry. Anal Chim Acta 2011; 693:7-25. [PMID: 21504806 DOI: 10.1016/j.aca.2011.03.002] [Citation(s) in RCA: 501] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 02/24/2011] [Accepted: 03/01/2011] [Indexed: 11/16/2022]
Abstract
This work reviews different types of substrates used for surface-enhanced Raman scattering (SERS) that have been developed in the last 10 years. The different techniques of self-assembly to immobilize metallic nanoparticles on solid support are covered. An overview of SERS platforms developed using nanolithography methods, including electron-beam (e-beam) lithography and focused ion beam (FIB) milling are also included, together with several examples of template-based methodologies to generate metallic nano-patterns. The potential of SERS to impact several aspects of analytical chemistry is demonstrated by selected examples of applications in electrochemistry, biosensing, environmental analysis, and remote sensing. This review shows that highly enhancing SERS substrates with a high degree of reliability and reproducibility can now be fabricated at relative low cost, indicating that SERS may finally realize its full potential as a very sensitive tool for routine analytical applications.
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Affiliation(s)
- Meikun Fan
- Department of Mechanical and Material Engineering, University of Western Ontario, London, Canada
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42
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Cui L, Yao M, Ren B, Zhang KS. Sensitive and versatile detection of the fouling process and fouling propensity of proteins on polyvinylidene fluoride membranes via surface-enhanced Raman spectroscopy. Anal Chem 2011; 83:1709-16. [PMID: 21291236 DOI: 10.1021/ac102891g] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Membrane fouling is the major drawback of membrane-based technologies because it will lead to severe flux declines and the need to clean or replace the fouled membrane. A technique capable of early diagnosis, process monitoring, and evaluation of the role of different foulants playing in the fouling process is crucial for the fouling control. We develop surface-enhanced Raman spectroscopy (SERS) as a new and versatile tool to investigate the fouling process of protein on PVDF (polyvinylidene fluoride) membranes as well as the fouling propensity of three different proteins. We optimized the aggregation level and volume of SERS-active Ag sol and the spectra acquisition method combined with a statistical analysis method to ensure a high detection sensitivity, signal uniformity, and stability. We then used SERS for the early diagnosis of the fouling process and determining when the membrane pores would be blocked. The fouled area was visualized by a combination of the silver staining and Raman mapping. The fouling propensity of different proteins was studied by comparing the relative SERS band intensities of different proteins on a glass slide and after membrane filtration. Compared with fluorescence-based techniques, the narrow, well-resolved Raman band, especially the use of the same excitation line and laser power, endows SERS the ability to compare the fouling propensity in a very simple way.
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Affiliation(s)
- Li Cui
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
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Wang J, Duan G, Liu G, Li Y, Dai Z, Zhang H, Cai W. Gold quasi rod-shaped nanoparticle-built hierarchically micro/nanostructured pore array via clean electrodeposition on a colloidal monolayer and its structurally enhanced SERS performance. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10773a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Farcau C, Moreira H, Viallet B, Grisolia J, Ressier L. Tunable conductive nanoparticle wire arrays fabricated by convective self-assembly on nonpatterned substrates. ACS NANO 2010; 4:7275-82. [PMID: 21038893 DOI: 10.1021/nn102128w] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Ordered arrays of centimeter-long nanoparticle wires are fabricated by convective self-assembly from aqueous suspensions of 18 nm gold colloids, on flat SiO(2)/Si substrates without any prepatterning. The orientation of the wires can be switched from parallel to perpendicular to the substrate-liquid-air contact line by controlling the substrate temperature. While the wires parallel to the meniscus are obtained by a stick-slip process, a mechanism based on critical density-triggered particle pinning is proposed to explain the formation of wires perpendicular to the meniscus. The geometry of the wire arrays is tuned by simply controlling the meniscus translation speed. Wires are typically characterized by widths of a few micrometers (1.8-8.2 µm), thicknesses of mono- to multilayers (18-70 nm), and spacings of few tens of micrometers. The fabricated nanoparticle wires are conductive, exhibiting a metallic resistive behavior in ambient conditions. Resistivity values of 5 × 10(-6) and 5 × 10(-2) Ωm are obtained on multilayer and monolayer nanoparticle wires, respectively. Such conductive nanoparticle wire arrays, fabricated by a simple and low-cost bottom-up strategy, offer opportunities for developing nanoparticle-based functional devices.
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Affiliation(s)
- Cosmin Farcau
- Université de Toulouse, INSA-CNRS-UPS, LPCNO, 135 avenue de Rangueil, 31077 Toulouse Cedex 4, France
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Abalde-Cela S, Hermida-Ramón JM, Contreras-Carballada P, De Cola L, Guerrero-Martínez A, Alvarez-Puebla RA, Liz-Marzán LM. SERS Chiral Recognition and Quantification of Enantiomers through Cyclodextrin Supramolecular Complexation. Chemphyschem 2010; 12:1529-35. [DOI: 10.1002/cphc.201000800] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Indexed: 11/07/2022]
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Yang M, Alvarez-Puebla R, Kim HS, Aldeanueva-Potel P, Liz-Marzán LM, Kotov NA. SERS-active gold lace nanoshells with built-in hotspots. NANO LETTERS 2010; 10:4013-9. [PMID: 20738117 PMCID: PMC3136084 DOI: 10.1021/nl101946c] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Development of multifunctional drug delivery vehicles with therapeutic and imaging capabilities as well as in situ methods of monitoring of intracellular processes will greatly benefit from a simple method of preparation of plasmonic Au structures with nanometer scale gaps between sharp metallic elements where the so-called SERS hot spots can be formed. Here the synthesis of gold lace capsules with average diameters ca. 100 nm made of a network of metallic branches 3-5 nm wide and separated by 1-3 nm gaps is reported. Biocompatible amphiphilic polyurethanes (PUs) were used as template for these particles. The unusual topology of the produced gold lace shells somewhat reminiscent of Fabergé eggs is likely to reflect the network of hydrophobic and hydrophilic domains of PU globules. The gold lace develops from initial open weblike structures by gradual enveloping the PU template. The diameter of gold lace shell is determined by the size of PUs in water and can be adjusted by the molecular mass of PUs. The close proximity between branches makes them excellent supports for surface-enhanced Raman spectroscopy (SERS), which was demonstrated using 1-naphthalenethiol upon excitation with photons with different wavelengths. The loading and releasing of pyrene as a model of hydrophobic drugs and the use of SERS to monitor it were demonstrated.
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Affiliation(s)
- Ming Yang
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109
| | - Ramón Alvarez-Puebla
- Departamento de Química Física and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo, Spain
| | - Hyoung-Sug Kim
- R&D Center, Hepce Chem Co., Ltd., Ansan, Kyounggi-Do, South Korea, 425–836
| | - Paula Aldeanueva-Potel
- Departamento de Química Física and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo, Spain
| | - Luis M. Liz-Marzán
- Departamento de Química Física and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo, Spain
| | - Nicholas A. Kotov
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109
- Department of Material Sciences and Engineering, University of Michigan, Ann Arbor, MI 48109
- Departments of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109
- Departamento de Química Física and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo, Spain
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Abalde-Cela S, Aldeanueva-Potel P, Mateo-Mateo C, Rodríguez-Lorenzo L, Alvarez-Puebla RA, Liz-Marzán LM. Surface-enhanced Raman scattering biomedical applications of plasmonic colloidal particles. J R Soc Interface 2010; 7 Suppl 4:S435-50. [PMID: 20462878 DOI: 10.1098/rsif.2010.0125.focus] [Citation(s) in RCA: 162] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
This review article presents a general view of the recent progress in the fast developing area of surface-enhanced Raman scattering spectroscopy as an analytical tool for the detection and identification of molecular species in very small concentrations, with a particular focus on potential applications in the biomedical area. We start with a brief overview of the relevant concepts related to the choice of plasmonic nanostructures for the design of suitable substrates, their implementation into more complex materials that allow generalization of the method and detection of a wide variety of (bio)molecules and the strategies that can be used for both direct and indirect sensing. In relation to indirect sensing, we devote the final section to a description of SERS-encoded particles, which have found wide application in biomedicine (among other fields), since they are expected to face challenges such as multiplexing and high-throughput screening.
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Affiliation(s)
- Sara Abalde-Cela
- Departamento de Química Física and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo, Spain
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Xie Y, Wang X, Han X, Xue X, Ji W, Qi Z, Liu J, Zhao B, Ozaki Y. Sensing of polycyclic aromatic hydrocarbons with cyclodextrin inclusion complexes on silver nanoparticles by surface-enhanced Raman scattering. Analyst 2010; 135:1389-94. [PMID: 20405060 DOI: 10.1039/c0an00076k] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We have developed a new type of surface-enhanced Raman scattering (SERS) substrate that consists of per-6-deoxy-(6-thio)-beta-cyclodextrin (CD-SH) modified by silver nanoparticles (AgNPs) for sensing of polycyclic aromatic hydrocarbons (PAHs), a kind of environmental pollutant, with very low affinity to metallic surfaces. The designed system can induce some PAH molecules (anthracene and pyrene) to insert into the hydrophobic cavity of beta-CD, which enables one to detect SERS of PAHs because the analytes are very close to the AgNPs surface, which is the zone of electromagnetic enhancement. The measured spectra can easily distinguish the two kinds of PAH compounds in a mixture by their own characteristic peaks. In addition, we carried out selective detection of PAHs by SERS of the inclusion complexes with different concentrations in the presence of CD-SH functionalized AgNPs. Moreover, this sensing platform has been applied to quantitative detection of PAH in a mixture consisting of anthracene and pyrene. The CD molecule has the feature of high selectivity due to its size of cavity, significantly enhancing the sensitivity of the system after CD-SH adsorbs on AgNPs via the terminal thiol. This proposed method for the detection of PAHs holds great potential in environmental analytical chemistry.
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Affiliation(s)
- Yunfei Xie
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, PR China
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Zhao Y, Newton JN, Liu J, Wei A. Dithiocarbamate-coated SERS substrates: sensitivity gain by partial surface passivation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:13833-13839. [PMID: 19685897 DOI: 10.1021/la902087e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The surface-enhanced Raman scattering (SERS) activity of nanoporous gold (NPG) can be boosted by controlled surface passivation. The SERS activities of unfunctionalized NPG were first optimized by etching substrates with NaI/I(2) (triiodide) and using 2-mercaptopyridine (2-MP) as the probing analyte. Gains in analyte sensitivity were then achieved by passivating the superficial regions of the NPG substrates with dimethyldithiocarbamate (Me(2)DTC) while leaving the more recessed "hot spots" available for SERS detection. Partial surface passivation with DTCs increased the substrate sensitivity to chemisorptive analytes such as 2-MP by an order of magnitude, whereas surface saturation lowered the sensitivity by an order of magnitude. The partially passivated NPG films can also be functionalized with supramolecular receptors for chemoselective SERS. Installation of a DTC-anchored terpyridine enabled the detection of divalent metal ions at trace levels, as determined by the complexation-induced shift of a characteristic Raman peak of the metal ion receptor.
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Affiliation(s)
- Yan Zhao
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, USA
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