1
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Lu Y, Li C, Wang Y, Liu C, Wang Z, Liu J, Fan H, Feng Z, Sun T. A recyclable SERS-DGT device for in-situ sensing of sulfamethazine by Au@g-C 3N 4NS in water. WATER RESEARCH 2024; 253:121307. [PMID: 38377930 DOI: 10.1016/j.watres.2024.121307] [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: 02/02/2024] [Accepted: 02/11/2024] [Indexed: 02/22/2024]
Abstract
Although diffusion gradient in thin-film technique (DGT) has realized the in-situ sampling Sulfamethazine (SMT), the traditional DGT devices cannot be served as sensing devices but in-situ sampling devices. Here we report a recyclable surface enhanced Raman scattering (SERS) responsive DGT sensing device (recyclable SERS-DGT Sensing Device) capable of in-situ sensing of SMT in water. This is achieved by innovatively utilizing a recyclable SERS responsive liquid suspension of Au nanoparticles supported on g-C3N4 (Au@g-C3N4NS) as DGT binding phase. Au@g-C3N4NS is synthesized via in-situ growth method and embed in DGT binding phase, which exhibits good SERS activity, aqueous stability recyclable and adsorption performance. The SERS-DGT Sensing Device is valid for measuring SMT under a wide range of conditions (i.e., deployment time 24∼180 h, concentrations range of 1.031∼761.9 ng mL-1, pH 5∼9, ionic strength 0.0001∼0.05 mol L-1 NaCl, DOM concentrations 0∼100 mg L-1, four recycles). Furthermore, substrate combined with DGT binding phase, can integrate the sampling, pretreatment and SERS detection of SMT, which can be recycled, improving the reliability and efficiency of environmental monitoring. In this article, recyclable SERS-DGT Sensing Device, a platform for recyclable in-situ sensing of antibiotics, holds great potential for environmental monitoring.
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Affiliation(s)
- Yunshu Lu
- Department of Chemistry, Northeastern University, Shenyang, Liaoning, 110819 PR China
| | - Changwei Li
- School of New Energy, Ningbo University of Technology, Ningbo, 315336 PR China; School of Materials Science and Engineering, Northeastern University, Shenyang, Liaoning, 110819 PR China.
| | - Yun Wang
- Department of Chemistry, Northeastern University, Shenyang, Liaoning, 110819 PR China
| | - Chang Liu
- Department of Chemistry, Jinzhou Medical University, Jinzhou, Liaoning, 121001 PR China
| | - Ziyue Wang
- Department of Chemistry, Northeastern University, Shenyang, Liaoning, 110819 PR China
| | - Jiaxin Liu
- Department of Chemistry, Northeastern University, Shenyang, Liaoning, 110819 PR China
| | - Hongtao Fan
- College of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001 PR China.
| | - Zhongmin Feng
- Department of Chemistry, Northeastern University, Shenyang, Liaoning, 110819 PR China
| | - Ting Sun
- Department of Chemistry, Northeastern University, Shenyang, Liaoning, 110819 PR China.
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2
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Wang W, Xia L, Xiao X, Li G. Recent Progress on Microfluidics Integrated with Fiber-Optic Sensors for On-Site Detection. SENSORS (BASEL, SWITZERLAND) 2024; 24:2067. [PMID: 38610279 PMCID: PMC11014287 DOI: 10.3390/s24072067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/14/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024]
Abstract
This review introduces a micro-integrated device of microfluidics and fiber-optic sensors for on-site detection, which can detect certain or several specific components or their amounts in different samples within a relatively short time. Fiber-optics with micron core diameters can be easily coated and functionalized, thus allowing sensors to be integrated with microfluidics to separate, enrich, and measure samples in a micro-device. Compared to traditional laboratory equipment, this integrated device exhibits natural advantages in size, speed, cost, portability, and operability, making it more suitable for on-site detection. In this review, the various optical detection methods used in this integrated device are introduced, including Raman, ultraviolet-visible, fluorescence, and surface plasmon resonance detections. It also provides a detailed overview of the on-site detection applications of this integrated device for biological analysis, food safety, and environmental monitoring. Lastly, this review addresses the prospects for the future development of microfluidics integrated with fiber-optic sensors.
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Affiliation(s)
| | | | - Xiaohua Xiao
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China; (W.W.); (L.X.)
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China; (W.W.); (L.X.)
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3
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Geladari O, Haizmann P, Maier A, Strienz M, Eberle M, Scheele M, Peisert H, Schnepf A, Chassé T, Braun K, Meixner AJ. Direct laser induced writing of high precision gold nanosphere SERS patterns. NANOSCALE ADVANCES 2024; 6:1213-1217. [PMID: 38356631 PMCID: PMC10863701 DOI: 10.1039/d3na00855j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 01/22/2024] [Indexed: 02/16/2024]
Abstract
The high sensitivity and molecular fingerprint capability of Surface-Enhanced Raman Spectroscopy (SERS) have lead to a wide variety of applications ranging from classical physics, chemistry over biology to medicine. Equally, there are numerous methods to fabricate samples owing to the desired properties and to create the localized surface plasmon resonances (LSPRS). However, for many applications the LSPRs must be specifically localized on micrometer sized areas and multiple steps of lithography are needed to achieve the desired substrates. Here we present a fast and reliable direct laser induced writing (DIW) method to produce SERS substrates with active areas of interest in any desired size and shape in the micrometer regime. Afterwards, the SERS substrates have been functionalized with phthalocyanines. The DIW fabricated samples realize sub-monolayer sensitivity and an almost uniform enhancement over the entire area, which make this production method suitable for many sensing applications.
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Affiliation(s)
- Olympia Geladari
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Philipp Haizmann
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
| | - Andre Maier
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Markus Strienz
- Institut für Anorganische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
| | - Martin Eberle
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
| | - Marcus Scheele
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Heiko Peisert
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Andreas Schnepf
- Institut für Anorganische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
| | - Thomas Chassé
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Kai Braun
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
| | - Alfred J Meixner
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen Auf der Morgenstelle 18 D-72076 Tübingen Germany
- Center for Light-Matter Interaction, Sensors & Analytics LISA+, Universität Tübingen Auf der Morgenstelle 15 D-72076 Tübingen Germany
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4
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Juneja S, Zhang B, Wang AX. Limit-Defying μ-Total Analysis System: Achieving Part-Per-Quadrillion Sensitivity on a Hierarchical Optofluidic SERS Sensor. ACS OMEGA 2023; 8:17151-17158. [PMID: 37214736 PMCID: PMC10193394 DOI: 10.1021/acsomega.3c01519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/19/2023] [Indexed: 05/24/2023]
Abstract
Optofluidic sensors have accelerated the growth of smart sensor platforms with improved sensitivity, reliability, and innovation. In this article, we report the integration of a surface-enhanced Raman scattering (SERS) material consisting of silver nanoparticle-decorated diatomaceous earth (AgNPs-DE) with a flow-through microfluidic device, building up a hierarchical structured micro-total analysis system (μ-TAS) capable of achieving part-per-quadrillion (ppq)-level sensitivity. By the synergic integration of millimeter-scale microfluidic devices and porous laboratory filter paper with a micrometer-sized crosslinked cellulosic network that carries SERS-active AgNPs-DE, which possesses submicron to nanometer regimes of photonic crystals and plasmonic nanostructures, we achieved enhanced mass-transfer efficiency and unprecedented detection sensitivity. In our experiment, fentanyl as the testing analyte at different concentrations was measured using a portable Raman spectrometer. The limit of detection (LOD) was estimated to be 10 ppq from a small detection volume of 10 mL with an ultrafast time of sensing (TOS) of 3 min. To attain comparable signals, the traditional soaking method took more than 90 min to detect 10 part-per-trillion fentanyl from a 10 mL sample. Compared with existing SERS sensing results of fentanyl, the limit-defying μ-TAS reduced the LOD-TOS product by almost 4 orders of magnitude, which represents a new stage of ultrafast sensing of extremely low concentration analytes.
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Affiliation(s)
- Subhavna Juneja
- School
of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon 97331, United States
- Department
of Electrical and Computer Engineering, Baylor University, Waco, Texas 76798, United States
| | - Boxin Zhang
- School
of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon 97331, United States
| | - Alan X. Wang
- School
of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon 97331, United States
- Department
of Electrical and Computer Engineering, Baylor University, Waco, Texas 76798, United States
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5
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Hussain CM, Hussain CG, Keçili R. White analytical chemistry approaches for analytical and bioanalytical techniques: Applications and challenges. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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6
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Ali A, Nettey-Oppong EE, Effah E, Yu CY, Muhammad R, Soomro TA, Byun KM, Choi SH. Miniaturized Raman Instruments for SERS-Based Point-of-Care Testing on Respiratory Viruses. BIOSENSORS 2022; 12:bios12080590. [PMID: 36004986 PMCID: PMC9405795 DOI: 10.3390/bios12080590] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/24/2022] [Accepted: 07/26/2022] [Indexed: 06/12/2023]
Abstract
As surface-enhanced Raman scattering (SERS) has been used to diagnose several respiratory viruses (e.g., influenza A virus subtypes such as H1N1 and the new coronavirus SARS-CoV-2), SERS is gaining popularity as a method for diagnosing viruses at the point-of-care. Although the prior and quick diagnosis of respiratory viruses is critical in the outbreak of infectious disease, ELISA, PCR, and RT-PCR have been used to detect respiratory viruses for pandemic control that are limited for point-of-care testing. SERS provides quantitative data with high specificity and sensitivity in a real-time, label-free, and multiplex manner recognizing molecular fingerprints. Recently, the design of Raman spectroscopy system was simplified from a complicated design to a small and easily accessible form that enables point-of-care testing. We review the optical design (e.g., laser wavelength/power and detectors) of commercialized and customized handheld Raman instruments. As respiratory viruses have prominent risk on the pandemic, we review the applications of handheld Raman devices for detecting respiratory viruses. By instrumentation and commercialization advancements, the advent of the portable SERS device creates a fast, accurate, practical, and cost-effective analytical method for virus detection, and would continue to attract more attention in point-of-care testing.
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Affiliation(s)
- Ahmed Ali
- Department of Electrical Engineering, Sukkur IBA University, Sukkur 65200, Pakistan;
| | - Ezekiel Edward Nettey-Oppong
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Korea; (E.E.N.-O.); (E.E.); (C.Y.Y.); (R.M.)
| | - Elijah Effah
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Korea; (E.E.N.-O.); (E.E.); (C.Y.Y.); (R.M.)
| | - Chan Yeong Yu
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Korea; (E.E.N.-O.); (E.E.); (C.Y.Y.); (R.M.)
| | - Riaz Muhammad
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Korea; (E.E.N.-O.); (E.E.); (C.Y.Y.); (R.M.)
| | - Toufique Ahmed Soomro
- Department of Electronic Engineering, Quid-e-Awam University of Engineering, Science and Technology, Larkana 77150, Pakistan;
| | - Kyung Min Byun
- Department of Biomedical Engineering, Kyung Hee University, Yongin 17104, Korea
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Korea
| | - Seung Ho Choi
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Korea; (E.E.N.-O.); (E.E.); (C.Y.Y.); (R.M.)
- Department of Integrative Medicine, Major in Digital Healthcare, Yonsei University College of Medicine, Seoul 06229, Korea
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7
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Moldovan R, Vereshchagina E, Milenko K, Iacob BC, Bodoki AE, Falamas A, Tosa N, Muntean CM, Farcău C, Bodoki E. Review on combining surface-enhanced Raman spectroscopy and electrochemistry for analytical applications. Anal Chim Acta 2022; 1209:339250. [PMID: 35569862 DOI: 10.1016/j.aca.2021.339250] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/12/2021] [Accepted: 11/02/2021] [Indexed: 02/07/2023]
Abstract
The discovery of surface enhanced Raman scattering (SERS) from an electrochemical (EC)-SERS experiment is known as a historic breakthrough. Five decades have passed and Raman spectroelectrochemistry (SEC) has developed into a common characterization tool that provides information about the electrode-electrolyte interface. Recently, this technique has been successfully explored for analytical purposes. EC was found to highly improve the performances of SERS sensors, providing, among others, controlled adsorption of analytes and increased reproducibility. In this review, we highlight the potential of EC-SERS sensors to be implemented for point-of-need (PON) analyses as miniaturized devices, and their ability to revolutionize fields like quality control, diagnosis or environmental and food safety. Important developments have been achieved in Raman spectroelectrochemistry, which now represents a promising alternative to conventional analytical methods and interests more and more researchers. The studies included in this review open endless possibilities for real-life EC-SERS analytical applications.
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Affiliation(s)
- Rebeca Moldovan
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Hațieganu" University of Medicine and Pharmacy, 4, Louis Pasteur, 400349, Cluj-Napoca, Romania
| | - Elizaveta Vereshchagina
- Department of Microsystems and Nanotechnology (MiNaLab), SINTEF Digital, Gaustadalléen 23C, 0373, Oslo, Norway
| | - Karolina Milenko
- Department of Microsystems and Nanotechnology (MiNaLab), SINTEF Digital, Gaustadalléen 23C, 0373, Oslo, Norway
| | - Bogdan-Cezar Iacob
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Hațieganu" University of Medicine and Pharmacy, 4, Louis Pasteur, 400349, Cluj-Napoca, Romania
| | - Andreea Elena Bodoki
- General and Inorganic Chemistry Department, Faculty of Pharmacy, Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, 12, Ion Creangă, 400010, Cluj-Napoca, Romania
| | - Alexandra Falamas
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania
| | - Nicoleta Tosa
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania
| | - Cristina M Muntean
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania
| | - Cosmin Farcău
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania.
| | - Ede Bodoki
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Hațieganu" University of Medicine and Pharmacy, 4, Louis Pasteur, 400349, Cluj-Napoca, Romania.
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8
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Optofluidic Particle Manipulation Platform with Nanomembrane. MICROMACHINES 2022; 13:mi13050721. [PMID: 35630187 PMCID: PMC9142978 DOI: 10.3390/mi13050721] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/28/2022] [Accepted: 04/28/2022] [Indexed: 02/01/2023]
Abstract
We demonstrate a method for fabricating and utilizing an optofluidic particle manipulator on a silicon chip that features a 300 nm thick silicon dioxide membrane as part of a microfluidic channel. The fabrication method is based on etching silicon channels and converting the walls to silicon dioxide through thermal oxidation. Channels are encapsulated by a sacrificial polymer which fills the length of the fluid channel by way of spontaneous capillary action. The sacrificial material is then used as a mold for the formation of a nanoscale, solid-state, silicon dioxide membrane. The hollow channel is primarily used for fluid and particle transport but is capable of transmitting light over short distances and utilizes radiation pressure for particle trapping applications. The optofluidic platform features solid-core ridge waveguides which can direct light on and off of the silicon chip and intersect liquid channels. Optical loss values are characterized for liquid and solid-core structures and at interfaces. Estimates are provided for the optical power needed to trap particles of various sizes.
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9
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Zhang D, Liang P, Chen W, Tang Z, Li C, Xiao K, Jin S, Ni D, Yu Z. Rapid field trace detection of pesticide residue in food based on surface-enhanced Raman spectroscopy. Mikrochim Acta 2021; 188:370. [PMID: 34622367 DOI: 10.1007/s00604-021-05025-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/19/2021] [Indexed: 12/17/2022]
Abstract
Surface-enhanced Raman spectroscopy is an alternative detection tool for monitoring food security. However, there is still a lack of a conclusion of SERS detection with respect to pesticides and real sample analysis, and the summary of intelligent algorithms in SERS is also a blank. In this review, a comprehensive report of pesticides detection using SERS technology is given. The SERS detection characteristics of different types of pesticides and the influence of substrate on inspection are discussed and compared by the typical ways of classification. The key points, including the progress in real sample analysis and Raman data processing methods with intelligent algorithm, are highlighted. Lastly, major challenges and future research trends of SERS analysis of pesticide residue are also addressed. SERS has been proven to be a powerful technique for rapid test of residue pesticides in complex food matrices, but there still is a tremendous development space for future research.
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Affiliation(s)
- De Zhang
- College of Horticulture & Forestry Sciences, Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China
| | - Pei Liang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China.
| | - Wenwen Chen
- College of Horticulture & Forestry Sciences, Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhexiang Tang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China
| | - Chen Li
- Jiangxi Sericulture and Tea Research Institute, Nanchang, 330203, China
| | - Kunyue Xiao
- College of Horticulture & Forestry Sciences, Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shangzhong Jin
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China
| | - Dejiang Ni
- College of Horticulture & Forestry Sciences, Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhi Yu
- College of Horticulture & Forestry Sciences, Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China.
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Pena-Pereira F, Bendicho C, Pavlović DM, Martín-Esteban A, Díaz-Álvarez M, Pan Y, Cooper J, Yang Z, Safarik I, Pospiskova K, Segundo MA, Psillakis E. Miniaturized analytical methods for determination of environmental contaminants of emerging concern - A review. Anal Chim Acta 2020; 1158:238108. [PMID: 33863416 DOI: 10.1016/j.aca.2020.11.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/26/2020] [Accepted: 11/27/2020] [Indexed: 01/09/2023]
Abstract
The determination of contaminants of emerging concern (CECs) in environmental samples has become a challenging and critical issue. The present work focuses on miniaturized analytical strategies reported in the literature for the determination of CECs. The first part of the review provides brief overview of CECs whose monitoring in environmental samples is of particular significance, namely personal care products, pharmaceuticals, endocrine disruptors, UV-filters, newly registered pesticides, illicit drugs, disinfection by-products, surfactants, high technology rare earth elements, and engineered nanomaterials. Besides, an overview of downsized sample preparation approaches reported in the literature for the determination of CECs in environmental samples is provided. Particularly, analytical methodologies involving microextraction approaches used for the enrichment of CECs are discussed. Both solid phase- and liquid phase-based microextraction techniques are highlighted devoting special attention to recently reported approaches. Special emphasis is placed on newly developed materials used for extraction purposes in microextraction techniques. In addition, recent contributions involving miniaturized analytical flow techniques for the determination of CECs are discussed. Besides, the strengths, weaknesses, opportunities and threats of point of need and portable devices have been identified and critically compared with chromatographic methods coupled to mass chromatography. Finally, challenging aspects regarding miniaturized analytical methods for determination of CECs are critically discussed.
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Affiliation(s)
- Francisco Pena-Pereira
- Centro de Investigación Mariña, Universidade de Vigo, Departamento de Química Analítica e Alimentaria, Grupo QA2, Edificio CC Experimentais, Campus de Vigo, As Lagoas, Marcosende, 36310, Vigo, Spain.
| | - Carlos Bendicho
- Centro de Investigación Mariña, Universidade de Vigo, Departamento de Química Analítica e Alimentaria, Grupo QA2, Edificio CC Experimentais, Campus de Vigo, As Lagoas, Marcosende, 36310, Vigo, Spain.
| | - Dragana Mutavdžić Pavlović
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev Trg 19, Zagreb, 10000, Croatia
| | - Antonio Martín-Esteban
- Departamento de Medio Ambiente y Agronomía, INIA, Carretera de A Coruña Km 7.5, Madrid, E-28040, Spain
| | - Myriam Díaz-Álvarez
- Departamento de Medio Ambiente y Agronomía, INIA, Carretera de A Coruña Km 7.5, Madrid, E-28040, Spain
| | - Yuwei Pan
- Cranfield Water Science Institute, Cranfield University, Cranfield, MK43 0AL, United Kingdom; School of Engineering, University of Glasgow, G12 8LT, United Kingdom
| | - Jon Cooper
- School of Engineering, University of Glasgow, G12 8LT, United Kingdom
| | - Zhugen Yang
- Cranfield Water Science Institute, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Ivo Safarik
- Department of Nanobiotechnology, Biology Centre, ISB, CAS, Na Sadkach 7, 370 05, Ceske Budejovice, Czech Republic; Regional Centre of Advanced Technologies and Materials, Palacky University, Slechtitelu 27, 783 71, Olomouc, Czech Republic; Department of Magnetism, Institute of Experimental Physics, SAS, Watsonova 47, 040 01, Kosice, Slovakia
| | - Kristyna Pospiskova
- Department of Nanobiotechnology, Biology Centre, ISB, CAS, Na Sadkach 7, 370 05, Ceske Budejovice, Czech Republic; Regional Centre of Advanced Technologies and Materials, Palacky University, Slechtitelu 27, 783 71, Olomouc, Czech Republic
| | - Marcela A Segundo
- LAQV/REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, R Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Elefteria Psillakis
- Laboratory of Aquatic Chemistry, School of Environmental Engineering, Polytechnioupolis, Technical University of Crete, GR-73100, Chania, Crete, Greece
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11
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Chi H, Wang C, Wang Z, Zhu H, Mesias VSD, Dai X, Chen Q, Liu W, Huang J. Highly reusable nanoporous silver sheet for sensitive SERS detection of pesticides. Analyst 2020; 145:5158-5165. [PMID: 32725005 DOI: 10.1039/d0an00999g] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) enables pesticide detection at the point-of-need, but its practical application is limited by expensive and disposable SERS substrates. Here, we report a reusable nanoporous silver (NPAg) sheet for the SERS detection of organochlorine pesticides, aiming to maximize the cost-efficiency of substrate regeneration. The NPAg sheet is prepared by a reduction-induced decomposition method without chemical induced random aggregations. This SERS substrate is sensitive to various analytes regardless of their affinity to a metal surface such as rhodamine B, dichlorodiphenyl-trichloroethane (DDT), and lindane due to its large surface area and the coral rock-like morphology. The SERS signal of lindane, a typical organochlorine pesticide, is identified and quantified with a minimum detectable concentration of 3 × 10-7 M (87 ppb), which is below the maximum residue limits in various foods set by the regulators across the world. More importantly, after a few minutes of ultrasonic cleaning in water, the NPAg sheet can be reused at least 20 times with a reproducible SERS activity. Furthermore, the NPAg sheet remains stable in terms of its sensitivity and reusability after several months of bare strorage. Therefore, the NPAg sheet as a SERS substrate holds great promise for mass production and convenient applications in low-cost pesticide analysis.
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Affiliation(s)
- Huanyu Chi
- HKUST-Shenzhen Research Institute, No. 9 Yuexing first RD, Hi-tech Park, Nanshan, Shenzhen 518057, China. .,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Congcheng Wang
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zhien Wang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Hongni Zhu
- HKUST-Shenzhen Research Institute, No. 9 Yuexing first RD, Hi-tech Park, Nanshan, Shenzhen 518057, China. .,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Vince St Dollente Mesias
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Xin Dai
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Qing Chen
- HKUST-Shenzhen Research Institute, No. 9 Yuexing first RD, Hi-tech Park, Nanshan, Shenzhen 518057, China. .,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Wei Liu
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Jinqing Huang
- HKUST-Shenzhen Research Institute, No. 9 Yuexing first RD, Hi-tech Park, Nanshan, Shenzhen 518057, China. .,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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12
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Sun J, Gong L, Wang W, Gong Z, Wang D, Fan M. Surface‐enhanced Raman spectroscopy for on‐site analysis: A review of recent developments. LUMINESCENCE 2020; 35:808-820. [DOI: 10.1002/bio.3796] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/14/2020] [Accepted: 02/25/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Ji Sun
- Faculty of Geosciences and Environmental EngineeringSouthwest Jiaotong University Chengdu China
| | - Lin Gong
- Faculty of Geosciences and Environmental EngineeringSouthwest Jiaotong University Chengdu China
| | - Wenjun Wang
- Faculty of Geosciences and Environmental EngineeringSouthwest Jiaotong University Chengdu China
| | - Zhengjun Gong
- Faculty of Geosciences and Environmental EngineeringSouthwest Jiaotong University Chengdu China
| | - Dongmei Wang
- Faculty of Geosciences and Environmental EngineeringSouthwest Jiaotong University Chengdu China
| | - Meikun Fan
- Faculty of Geosciences and Environmental EngineeringSouthwest Jiaotong University Chengdu China
- State‐province Joint Engineering Laboratory of Spatial Information Technology of High‐Speed Rail Safety Chengdu China
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13
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Fan M, Andrade GFS, Brolo AG. A review on recent advances in the applications of surface-enhanced Raman scattering in analytical chemistry. Anal Chim Acta 2019; 1097:1-29. [PMID: 31910948 DOI: 10.1016/j.aca.2019.11.049] [Citation(s) in RCA: 199] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 11/18/2019] [Accepted: 11/20/2019] [Indexed: 12/13/2022]
Abstract
This review is focused on recent developments of surface-enhanced Raman scattering (SERS) applications in Analytical Chemistry. The work covers advances in the fabrication methods of SERS substrates, including nanoparticles immobilization techniques and advanced nanopatterning with metallic features. Recent insights in quantitative and sampling methods for SERS implementation and the development of new SERS-based approaches for both qualitative and quantitative analysis are discussed. The advent of methods for pre-concentration and new approaches for single-molecule SERS quantification, such as the digital SERS procedure, has provided additional improvements in the analytical figures-of-merit for analysis and assays based on SERS. The use of metal nanostructures as SERS detection elements integrated in devices, such as microfluidic systems and optical fibers, provided new tools for SERS applications that expand beyond the laboratory environment, bringing new opportunities for real-time field tests and process monitoring based on SERS. Finally, selected examples of SERS applications in analytical and bioanalytical chemistry are discussed. The breadth of this work reflects the vast diversity of subjects and approaches that are inherent to the SERS field. The state of the field indicates the potential for a variety of new SERS-based methods and technologies that can be routinely applied in analytical laboratories.
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Affiliation(s)
- Meikun Fan
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Gustavo F S Andrade
- Centro de Estudos de Materiais, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora, Campus Universitário s/n, CEP 36036-900, Juiz de Fora, Brazil
| | - Alexandre G Brolo
- Department of Chemistry, University of Victoria, PO Box 3055, Victoria, BC, V8W 3V6, Canada; Centre for Advanced Materials and Related Technology, University of Victoria, V8W 2Y2, Canada.
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14
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Sivashanmugan K, Squire K, Kraai JA, Tan A, Zhao Y, Rorrer GL, Wang AX. Biological Photonic Crystal-Enhanced Plasmonic Mesocapsules: Approaching Single-Molecule Optofluidic-SERS Sensing. ADVANCED OPTICAL MATERIALS 2019; 7:1900415. [PMID: 32775144 PMCID: PMC7410161 DOI: 10.1002/adom.201900415] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Indexed: 05/05/2023]
Abstract
Surface-enhanced Raman scattering (SERS) sensing in microfluidic devices, namely optofluidic-SERS, suffers an intrinsic trade-off between mass transport and hot spot density, both of which are required for ultra-sensitive detection. To overcome this compromise, photonic crystal-enhanced plasmonic mesocapsules are synthesized, utilizing diatom biosilica decorated with in-situ growth silver nanoparticles (Ag NPs). In our optofluidic-SERS testing, 100× higher enhancement factors and greater than 1,000× better detection limit were achieved compared with traditional colloidal Ag NPs, the improvement of which is attributed to unique properties of the mesocapsules. First, the porous diatom biosilica frustules serve as carrier capsules for high density Ag NPs that form high density plasmonic hot-spots. Second, the submicron-pores embedded in the frustule walls not only create a large surface-to-volume ratio allowing for effective analyte capture, but also enhance the local optical field through the photonic crystal effect. Last, the mesocapsules provide effective mixing with analytes as they are flowing inside the microfluidic channel. The reported mesocapsules achieved single molecule detection of Rhodamine 6G in microfluidic devices and were further utilized to detect 1 nM of benzene and chlorobenzene compounds in tap water with near real-time response, which successfully overcomes the constraint of traditional optofluidic sensing.
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Affiliation(s)
- Kundan Sivashanmugan
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA
| | - Kenneth Squire
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA
| | - Joseph A. Kraai
- School of Chemical, Biological, and Ecological Engineering, Oregon State University, Corvallis, OR 97331, USA
| | - Ailing Tan
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA
- School of Information Science and Engineering, The Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, Yanshan University, Qinhuangdao 066004, China
| | - Yong Zhao
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA
- School of Electrical Engineering, The Key Laboratory of Measurement Technology and Instrumentation of Hebei Province, Yanshan University, Qinhuangdao, 066004, China
| | - Gregory L. Rorrer
- School of Chemical, Biological, and Ecological Engineering, Oregon State University, Corvallis, OR 97331, USA
| | - Alan X. Wang
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA
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15
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Liu SY, Tian XD, Zhang Y, Li JF. Quantitative Surface-Enhanced Raman Spectroscopy through the Interface-Assisted Self-Assembly of Three-Dimensional Silver Nanorod Substrates. Anal Chem 2018; 90:7275-7282. [DOI: 10.1021/acs.analchem.8b00488] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Si-Ying Liu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Xiang-Dong Tian
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yun Zhang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Jian-Feng Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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16
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Zhang P, Wang LM, Zheng DW, Lin TF, Wei XD, Liu XY, Wang HQ. Surface-enhanced Raman spectroscopic analysis of N 6-benzylaminopurine residue quantity in sprouts with gold nanoparticles. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2018; 53:561-566. [PMID: 29768098 DOI: 10.1080/03601234.2018.1473954] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 04/13/2018] [Indexed: 06/08/2023]
Abstract
A rapid and quantitative method for the determination of N6-Benzylademine (N6-BA) was established through the application of surface-enhanced Raman spectroscopy (SERS). The Raman peak intensities of N6-BA at 1002 cm-1 positively correlated to N6-BA concentrations in sprout extracts. The R2 reached 0.99, and RSDs calculated below 10% at the concentration range of 0.1 ∼5μg mL-1. The average recoveries were 80.0% ∼ 98.2% for blank samples intentionally contaminated at differing levels of 0.04, 0.4, and 1 μg g-1. The whole procedure, including sample preparation and SERS detection, did not exceed 30 min for a set of 6 samples. This study indicates that SERS is a promising technique for rapid tracing analysis and on-site testing of N6-BA.
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Affiliation(s)
- Ping Zhang
- a College of Life Science and Bioengineering, Beijing University of Technology , Beijing , P. R. China
| | - Li M Wang
- a College of Life Science and Bioengineering, Beijing University of Technology , Beijing , P. R. China
| | - Da W Zheng
- a College of Life Science and Bioengineering, Beijing University of Technology , Beijing , P. R. China
| | - Tai F Lin
- a College of Life Science and Bioengineering, Beijing University of Technology , Beijing , P. R. China
| | - Xiao D Wei
- a College of Life Science and Bioengineering, Beijing University of Technology , Beijing , P. R. China
| | - Xiao Y Liu
- a College of Life Science and Bioengineering, Beijing University of Technology , Beijing , P. R. China
| | - Hui Q Wang
- a College of Life Science and Bioengineering, Beijing University of Technology , Beijing , P. R. China
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17
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Lee CW, Tseng FG. Surface enhanced Raman scattering (SERS) based biomicrofluidics systems for trace protein analysis. BIOMICROFLUIDICS 2018; 12:011502. [PMID: 29430272 PMCID: PMC5780278 DOI: 10.1063/1.5012909] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 01/11/2018] [Indexed: 05/03/2023]
Abstract
In recent years, Surface Enhanced Raman Scattering (SERS) has been widely applied to many different areas, including chemical analysis, biomolecule detection, bioagent diagnostics, DNA sequence, and environmental monitor, due to its capabilities of unlabeled fingerprint identification, high sensitivity, and rapid detection. In biomicrofluidic systems, it is also very powerful to integrate SERS based devices with specified micro-fluid flow fields to further focusing/enhancing/multiplexing SERS signals through molecule registration, concentration/accumulation, and allocation. In this review, after a brief introduction of the mechanism of SERS detection on proteins, we will first focus on the effectiveness of different nanostructures for SERS enhancement and light-to-heat conversion in trace protein analysis. Various protein molecule accumulation schemes by either (bio-)chemical or physical ways, such as immuno, electrochemical, Tip-enhanced Raman spectroscopy, and magnetic, will then be reviewed for further SERS signal amplification. The analytical and repeatability/stability issues of SERS detection on proteins will also be brought up for possible solutions. Then, the comparison about various ways employing microfluidic systems to register, concentrate, and enhance the signals of SERS and reduce the background noise by active or passive means to manipulate SERS nanostructures and protein molecules will be elaborated. Finally, we will carry on the discussion on the challenges and opportunities by introducing SERS into biomicrofluidic systems and their potential solutions.
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Affiliation(s)
- Chun-Wei Lee
- Department of Engineering and System, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Rd., Hsinchu 30013, Taiwan
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18
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SERS-microfluidic systems: A potential platform for rapid analysis of food contaminants. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.10.001] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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19
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Tycova A, Prikryl J, Foret F. Recent strategies toward microfluidic-based surface-enhanced Raman spectroscopy. Electrophoresis 2017; 38:1977-1987. [DOI: 10.1002/elps.201700046] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/20/2017] [Accepted: 04/18/2017] [Indexed: 12/25/2022]
Affiliation(s)
- Anna Tycova
- Institute of Analytical Chemistry of the CAS; v. v. i.; Brno Czech Republic
| | - Jan Prikryl
- Institute of Analytical Chemistry of the CAS; v. v. i.; Brno Czech Republic
| | - Frantisek Foret
- Institute of Analytical Chemistry of the CAS; v. v. i.; Brno Czech Republic
- CEITEC - Central European Institute of Technology; Brno Czech Republic
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20
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Martin JW, Nieuwoudt MK, Vargas MJT, Bodley OLC, Yohendiran TS, Oosterbeek RN, Williams DE, Cather Simpson M. Raman on a disc: high-quality Raman spectroscopy in an open channel on a centrifugal microfluidic disc. Analyst 2017; 142:1682-1688. [DOI: 10.1039/c6an00874g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Novel open-channel centrifugal microfluidic disc design affords measurement of high quality Raman spectra of milk for detecting adulterants at point-of-collection.
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Affiliation(s)
- J. W. Martin
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- The Photon Factory
| | - M. K. Nieuwoudt
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- The Photon Factory
| | - M. J. T. Vargas
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- The Photon Factory
| | - O. L. C. Bodley
- The Photon Factory
- The University of Auckland
- Auckland
- New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - T. S. Yohendiran
- The Photon Factory
- The University of Auckland
- Auckland
- New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - R. N. Oosterbeek
- The Photon Factory
- The University of Auckland
- Auckland
- New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - D. E. Williams
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - M. Cather Simpson
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- The Photon Factory
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21
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Jahn IJ, Žukovskaja O, Zheng XS, Weber K, Bocklitz TW, Cialla-May D, Popp J. Surface-enhanced Raman spectroscopy and microfluidic platforms: challenges, solutions and potential applications. Analyst 2017; 142:1022-1047. [DOI: 10.1039/c7an00118e] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The review provides an overview of the development in the field of surface-enhanced Raman spectroscopy combined with microfluidic platforms.
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Affiliation(s)
- I. J. Jahn
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
- Leibniz Institute of Photonic Technology Jena
| | - O. Žukovskaja
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
| | - X.-S. Zheng
- Leibniz Institute of Photonic Technology Jena
- 07745 Jena
- Germany
| | - K. Weber
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
- Leibniz Institute of Photonic Technology Jena
| | - T. W. Bocklitz
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
- Leibniz Institute of Photonic Technology Jena
| | - D. Cialla-May
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
- Leibniz Institute of Photonic Technology Jena
| | - J. Popp
- Friedrich Schiller University Jena
- Institute of Physical Chemistry and Abbe Center of Photonics
- 07745 Jena
- Germany
- Leibniz Institute of Photonic Technology Jena
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22
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Bapat G, Labade C, Chaudhari A, Zinjarde S. Silica nanoparticle based techniques for extraction, detection, and degradation of pesticides. Adv Colloid Interface Sci 2016; 237:1-14. [PMID: 27780560 DOI: 10.1016/j.cis.2016.06.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 05/31/2016] [Accepted: 06/01/2016] [Indexed: 12/07/2022]
Abstract
Silica nanoparticles (SiNPs) find applications in the fields of drug delivery, catalysis, immobilization and sensing. Their synthesis can be mediated in a facile manner and they display broad range compatibility and stability. Their existence in the form of spheres, wires and sheets renders them suitable for varied purposes. This review summarizes the use of silica nanostructures in developing techniques for extraction, detection and degradation of pesticides. Silica nanostructures on account of their sorbent properties, porous nature and increased surface area allow effective extraction of pesticides. They can be modified (with ionic liquids, silanes or amines), coated with molecularly imprinted polymers or magnetized to improve the extraction of pesticides. Moreover, they can be altered to increase their sensitivity and stability. In addition to the analysis of pesticides by sophisticated techniques such as High Performance Liquid Chromatography or Gas chromatography, silica nanoparticles related simple detection methods are also proving to be effective. Electrochemical and optical detection based on enzymes (acetylcholinesterase and organophosphate hydrolase) or antibodies have been developed. Pesticide sensors dependent on fluorescence, chemiluminescence or Surface Enhanced Raman Spectroscopic responses are also SiNP based. Moreover, degradative enzymes (organophosphate hydrolases, carboxyesterases and laccases) and bacterial cells that produce recombinant enzymes have been immobilized on SiNPs for mediating pesticide degradation. After immobilization, these systems show increased stability and improved degradation. SiNP are significant in developing systems for effective extraction, detection and degradation of pesticides. SiNPs on account of their chemically inert nature and amenability to surface modifications makes them popular tools for fabricating devices for 'on-site' applications.
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23
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Kong X, Xi Y, LeDuff P, Li E, Liu Y, Cheng LJ, Rorrer GL, Tan H, Wang AX. Optofluidic sensing from inkjet-printed droplets: the enormous enhancement by evaporation-induced spontaneous flow on photonic crystal biosilica. NANOSCALE 2016; 8:17285-17294. [PMID: 27714122 PMCID: PMC5076880 DOI: 10.1039/c6nr05809d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Novel transducers for detecting an ultra-small volume of an analyte solution play pivotal roles in many applications such as chemical analysis, environmental protection and biomedical diagnosis. Recent advances in optofluidics offer tremendous opportunities for analyzing miniature amounts of samples with high detection sensitivity. In this work, we demonstrate enormous enhancement factors (106-107) of the detection limit for optofluidic analysis from inkjet-printed droplets by evaporation-induced spontaneous flow on photonic crystal biosilica when compared with conventional surface-enhanced Raman scattering (SERS) sensing using the pipette dispensing technology. Our computational fluid dynamics simulation has shown a strong recirculation flow inside the 100 picoliter droplet during the evaporation process due to the thermal Marangoni effect. The combination of the evaporation-induced spontaneous flow in micron-sized droplets and the highly hydrophilic photonic crystal biosilica is capable of providing a strong convection flow to combat the reverse diffusion force, resulting in a higher concentration of the analyte molecules at the diatom surface. In the meanwhile, high density hot-spots provided by the strongly coupled plasmonic nanoparticles with photonic crystal biosilica under a 1.5 μm laser spot are verified by finite-difference time domain simulation, which is crucial for SERS sensing. Using a drop-on-demand inkjet device to dispense multiple 100 picoliter analyte droplets with pinpoint accuracy, we achieved the single molecule detection of Rhodamine 6G and label-free sensing of 4.5 × 10-17 g trinitrotoluene from only 200 nanoliter solution.
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Affiliation(s)
- Xianming Kong
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
| | - Yuting Xi
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
| | - Paul LeDuff
- School of Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA
| | - Erwen Li
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
| | - Ye Liu
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
| | - Li-Jing Cheng
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
| | - Gregory L Rorrer
- School of Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA
| | - Hua Tan
- School of Engineering and Computer Science, Washington State University-Vancouver, Vancouver, WA 98686, USA.
| | - Alan X Wang
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
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24
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Trace detection of tetrahydrocannabinol (THC) with a SERS-based capillary platform prepared by the in situ microwave synthesis of AgNPs. Anal Chim Acta 2016; 939:93-100. [DOI: 10.1016/j.aca.2016.08.033] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 07/25/2016] [Accepted: 08/20/2016] [Indexed: 11/20/2022]
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25
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Liao W, Lu X. Determination of chemical hazards in foods using surface-enhanced Raman spectroscopy coupled with advanced separation techniques. Trends Food Sci Technol 2016. [DOI: 10.1016/j.tifs.2016.05.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Lu Y, Xia Y, Liu G, Pan M, Li M, Lee NA, Wang S. A Review of Methods for Detecting Melamine in Food Samples. Crit Rev Anal Chem 2016; 47:51-66. [DOI: 10.1080/10408347.2016.1176889] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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27
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Litti L, Amendola V, Toffoli G, Meneghetti M. Detection of low-quantity anticancer drugs by surface-enhanced Raman scattering. Anal Bioanal Chem 2016; 408:2123-31. [DOI: 10.1007/s00216-016-9315-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 12/27/2015] [Accepted: 01/05/2016] [Indexed: 01/12/2023]
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28
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Zhao X, Xue J, Mu Z, Huang Y, Lu M, Gu Z. Gold nanoparticle incorporated inverse opal photonic crystal capillaries for optofluidic surface enhanced Raman spectroscopy. Biosens Bioelectron 2015; 72:268-74. [DOI: 10.1016/j.bios.2015.05.036] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/12/2015] [Accepted: 05/13/2015] [Indexed: 10/23/2022]
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29
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Jiang Q, Zeng T, Yang S, Chen Q, Chen L, Ye Y, Zhou J, Xu S. On-column enrichment and surface-enhanced Raman scattering detection in nanoparticles functionalized porous capillary monolith. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 141:244-251. [PMID: 25681809 DOI: 10.1016/j.saa.2015.01.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 01/08/2015] [Accepted: 01/14/2015] [Indexed: 06/04/2023]
Abstract
A monolithic column functionalized with gold nanoparticles (GNPs) was designed to provide ultrasensitive detection with surface-enhanced Raman scattering (SERS). The monolithic column based on poly (glycidyl methacrylate-co-ethylene dimethacrylate) (GMA-co-EDMA) was served as the enrichment sorbent to concentrate GNPs and targets. We found that 60 nm GNPs-functionalized monolithic columns demonstrated the best SERS enhancement, and the lowest detectable concentration for PATP and CV could be achieved at 10(-7) and 10(-11) M, respectively. Moreover, the columns exhibit a good reproducibility in both spot-to-spot (∼10%) and batch-to-batch (∼15%). The SERS monolithic column with a high sensitivity and reproducibility has a great potential in the field-based rapid detection of targets in complex real-world samples.
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Affiliation(s)
- Qian Jiang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University, Wuhan 430062, P.R. China
| | - Tian Zeng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University, Wuhan 430062, P.R. China
| | - Song Yang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University, Wuhan 430062, P.R. China
| | - Qian Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University, Wuhan 430062, P.R. China
| | - Lei Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University, Wuhan 430062, P.R. China
| | - Yong Ye
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University, Wuhan 430062, P.R. China
| | - Ji Zhou
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University, Wuhan 430062, P.R. China.
| | - Shuping Xu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, P.R. China.
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30
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Wang F, Liu S, Lin M, Chen X, Lin S, Du X, Li H, Ye H, Qiu B, Lin Z, Guo L, Chen G. Colorimetric detection of microcystin-LR based on disassembly of orient-aggregated gold nanoparticle dimers. Biosens Bioelectron 2015; 68:475-480. [PMID: 25621999 DOI: 10.1016/j.bios.2015.01.037] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 01/10/2015] [Accepted: 01/16/2015] [Indexed: 12/22/2022]
Abstract
Recently we demonstrated oriented formation of gold nanoparticle (AuNP) dimers for ultrasensitive sensing oligonucleotides (J. Am. Chem. Soc. 2013, 135, 12338). Herein, we investigate the reverse process of this sensing mechanism using target analytes to disassemble the orient-aggregated AuNP dimers. This enables us to expand the analytes from oligonucleotides to other molecules, e.g. highly sensitive and selective determination of microcystin-LR (MC-LR) is selected for a demonstration in this work. Aptamers specific to the target molecules are used as linkers to prepare the AuNP dimers. In the presence of the target molecule, the aptamer changes its structure to bind the target molecule. Thus the pre-formed AuNP dimers are disassembled. As a result, the solution color is changed from blue to red. This sensing design retains the advantages of the previously developed sensors based on target molecules guided formation of AuNP dimers, e.g. the overwhelming sensitivity and stability comparing with those non-oriented sensors based on the formation of large aggregates, with the additional advantages as follows: 1) the target molecules are expanded from oligonucleotides to arbitrary molecules that can specifically bind to aptamers; 2) the color change is completed within 5 min, while the previous sensor based on the formation of AuNP dimers cost ~1 hour to obtain stable responses.
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Affiliation(s)
- Fangfang Wang
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Shuzhen Liu
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Mingxia Lin
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Xing Chen
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Shiru Lin
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Xiazhen Du
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - He Li
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Hongbin Ye
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Bin Qiu
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Zhenyu Lin
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Longhua Guo
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China.
| | - Guonan Chen
- Institute of Nanomedicine and Nanobiosensing, Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety; College of Chemistry, Fuzhou University, Fuzhou 350116, China
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31
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Betz JF, Yu WW, Cheng Y, White IM, Rubloff GW. Simple SERS substrates: powerful, portable, and full of potential. Phys Chem Chem Phys 2014; 16:2224-39. [PMID: 24366393 DOI: 10.1039/c3cp53560f] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Surface enhanced Raman spectroscopy (SERS) is a powerful spectroscopic technique capable of detecting trace amounts of chemicals and identifying them based on their unique vibrational characteristics. While there are many complex methods for fabricating SERS substrates, there has been a recent shift towards the development of simple, low cost fabrication methods that can be performed in most labs or even in the field. The potential of SERS for widespread use will likely be realized only with development of cheaper, simpler methods. In this Perspective article we briefly review several of the more popular methods for SERS substrate fabrication, discuss the characteristics of simple SERS substrates, and examine several methods for producing simple SERS substrates. We highlight potential applications and future directions for simple SERS substrates, focusing on highly SERS active three-dimensional nanostructures fabricated by inkjet and screen printing and galvanic displacement for portable SERS analysis - an area that we believe has exciting potential for future research and commercialization.
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Affiliation(s)
- Jordan F Betz
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
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Driscoll AJ, Harpster MH, Johnson PA. The development of surface-enhanced Raman scattering as a detection modality for portable in vitro diagnostics: progress and challenges. Phys Chem Chem Phys 2013; 15:20415-33. [PMID: 24177331 DOI: 10.1039/c3cp52334a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This perspective provides an overview of the diverse surface-enhanced Raman scattering (SERS)-based sensor platforms that have been developed for in vitro diagnostic applications. To provide focus, protein and nucleic acid detection assays based on the principle of extrinsic SERS sensing are emphasized, as well as their potential for translation to fully integrated point-of-care (POC) test platforms. The development of intrinsic SERS sensors, which are predicated on the direct detection of analytes by laser excitation, entails unique opportunities and challenges deserving of their own attention. As the robust sensing of disease pathogens and cancers in both clinical facilities and limited resource settings is the targeted objective of many next-generation biosensors, the majority of the research progress summarized here centers on SERS sensors developed for the rapid, sensitive and selective detection of disease-causing pathogens and biomarkers. In our effort to communicate a realistic assessment of the progress that has been made and the challenges that lie ahead, we avoid an overtly optimistic appraisal of the current status of SERS diagnostics that does not tacitly acknowledge the difficulties inherent in aligning SERS-based technologies alongside ELISA and PCR technologies as a complementary method for bioanalyte detection possessing unique advantages.
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Affiliation(s)
- Ashley J Driscoll
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY 82071, USA.
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33
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Yazdi SH, Giles KL, White IM. Multiplexed detection of DNA sequences using a competitive displacement assay in a microfluidic SERRS-based device. Anal Chem 2013; 85:10605-11. [PMID: 24125433 DOI: 10.1021/ac402744z] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We demonstrate sensitive and multiplexed detection of DNA sequences through a surface enhanced resonance Raman spectroscopy (SERRS)-based competitive displacement assay in an integrated microsystem. The use of the competitive displacement scheme, in which the target DNA sequence displaces a Raman-labeled reporter sequence that has lower affinity for the immobilized probe, enables detection of unlabeled target DNA sequences with a simple single-step procedure. In our implementation, the displacement reaction occurs in a microporous packed column of silica beads prefunctionalized with probe-reporter pairs. The use of a functionalized packed-bead column in a microfluidic channel provides two major advantages: (i) immobilization surface chemistry can be performed as a batch process instead of on a chip-by-chip basis, and (ii) the microporous network eliminates the diffusion limitations of a typical biological assay, which increases the sensitivity. Packed silica beads are also leveraged to improve the SERRS detection of the Raman-labeled reporter. Following displacement, the reporter adsorbs onto aggregated silver nanoparticles in a microfluidic mixer; the nanoparticle-reporter conjugates are then trapped and concentrated in the silica bead matrix, which leads to a significant increase in plasmonic nanoparticles and adsorbed Raman reporters within the detection volume as compared to an open microfluidic channel. The experimental results reported here demonstrate detection down to 100 pM of the target DNA sequence, and the experiments are shown to be specific, repeatable, and quantitative. Furthermore, we illustrate the advantage of using SERRS by demonstrating multiplexed detection. The sensitivity of the assay, combined with the advantages of multiplexed detection and single-step operation with unlabeled target sequences makes this method attractive for practical applications. Importantly, while we illustrate DNA sequence detection, the SERRS-based competitive displacement assay is applicable to detection of a variety of biological macromolecules, including proteins and proteolytic enzymes.
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Affiliation(s)
- Soroush H Yazdi
- Fischell Department of Bioengineering, University of Maryland , College Park, Maryland 20742, United States
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Negri P, Jacobs KT, Dada OO, Schultz ZD. Ultrasensitive surface-enhanced Raman scattering flow detector using hydrodynamic focusing. Anal Chem 2013; 85:10159-66. [PMID: 24074461 DOI: 10.1021/ac401537k] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Label-free, chemical specific detection in flow is important for high throughput characterization of analytes in applications such as flow injection analysis, electrophoresis, and chromatography. We have developed a surface-enhanced Raman scattering (SERS) flow detector capable of ultrasensitive optical detection on the millisecond time scale. The device employs hydrodynamic focusing to improve SERS detection in a flow channel where a sheath flow confines analyte molecules eluted from a fused silica capillary over a planar SERS-active substrate. Increased analyte interactions with the SERS substrate significantly improve detection sensitivity. The performance of this flow detector was investigated using a combination of finite element simulations, fluorescence imaging, and Raman experiments. Computational fluid dynamics based on finite element analysis was used to optimize the flow conditions. The modeling indicates that a number of factors, such as the capillary dimensions and the ratio of the sheath flow to analyte flow rates, are critical for obtaining optimal results. Sample confinement resulting from the flow dynamics was confirmed using wide-field fluorescence imaging of rhodamine 6G (R6G). Raman experiments at different sheath flow rates showed increased sensitivity compared with the modeling predictions, suggesting increased adsorption. Using a 50 ms acquisition, a sheath flow rate of 180 μL/min, and a sample flow rate of 5 μL/min, a linear dynamic range from nanomolar to micromolar concentrations of R6G with a limit of detection (LOD) of 1 nM is observed. At low analyte concentrations, rapid analyte desorption is observed, enabling repeated and high-throughput SERS detection. The flow detector offers substantial advantages over conventional SERS-based assays such as minimal sample volumes and high detection efficiency.
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Affiliation(s)
- Pierre Negri
- Department of Chemistry and Biochemistry, University of Notre Dame , Notre Dame, Indiana, 46556 United States
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Yan F, Shrestha YK, Spurgeon CL. Determination of ferric ions using surface-enhanced Raman scattering based on desferrioxamine-functionalized silver nanoparticles. Chem Commun (Camb) 2013; 49:7962-4. [DOI: 10.1039/c3cc43916j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A simple, robust and reproducible spectroscopic method based on surface-enhanced Raman scattering with nanomolar sensitivity has been developed for selective iron(iii) determination in aqueous solutions.
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Affiliation(s)
- Fei Yan
- Department of Chemistry
- North Carolina Central University
- Durham
- USA
| | - Yam K. Shrestha
- Department of Chemistry
- North Carolina Central University
- Durham
- USA
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36
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You LJ, An Q, Guo J, Hu JJ, Wang CC. Uniform MF/Ag-NPs core–shell composite microspheres as isolated SERS substrates for quick and sensitive detection of insecticide. RSC Adv 2013. [DOI: 10.1039/c3ra42260g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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37
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Campos CDM, da Silva JAF. Applications of autonomous microfluidic systems in environmental monitoring. RSC Adv 2013. [DOI: 10.1039/c3ra41561a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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