1
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Chen H, Han C, Zhang L, Wu Y. Porous rod-shaped Fe 2O 3/Ag/BP: a novel substrate for highly sensitive SERS detection of persistent organic pollutants. NANOTECHNOLOGY 2024; 35:195710. [PMID: 38330462 DOI: 10.1088/1361-6528/ad27ab] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 02/08/2024] [Indexed: 02/10/2024]
Abstract
A surface enhanced Raman scattering (SERS) substrate of porous rod-shaped ferric oxide (Fe2O3) combined with silver nanoparticles (Ag NPs) and black phosphorus (Fe2O3/Ag/BP) was fabricated to detect the persistent organic pollutants (POPs) at low concentration. The organic pollutant Rhodamine 6G (R6G) was used as the probe molecule to study the performances of Fe2O3/Ag/BP, and 4-chlorobiphenyl (PCB-3) was the target of detection. The limit of detection (LOD) of R6G based on this novel SERS substrate Fe2O3/Ag/BP was as low as 1.0 × 10-15M, which was five orders of magnitude lower than that of Fe2O3/Ag (10-10M). The enhancement factor (EF) of Fe2O3/Ag/BP was 6.44 × 108, which was 3.1 times higher than that of porous rod-shaped Fe2O3/Ag (2.08 × 108). The Raman signal of R6G based on Fe2O3/Ag/BP had a good homogeneity, and the relative standard deviation (RSD) of Raman signal intensities of R6G at 1643 cm-1was only 5.97%. Furthermore, the Fe2O3/Ag/BP substrate exhibited a recyclability through the photocatalytic degradation of R6G. The LOD of PCB-3 based on Fe2O3/Ag/BP was 10-9M. Besides, Fe2O3/Ag/BP had a high SERS activity even it was kept in a centrifuge tube without requiring complicated treatment. These results highlight the potential application of Fe2O3/Ag/BP for ultra-trace detection of POPs in the environment.
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Affiliation(s)
- Hang Chen
- School of Physics and Electronic Engineering, Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
- Jiangsu Xiyi Advanced Materials Research Institute of Industrial Technology, Xuzhou 221400, People's Republic of China
| | - Caiqin Han
- School of Physics and Electronic Engineering, Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Le Zhang
- School of Physics and Electronic Engineering, Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
- Jiangsu Xiyi Advanced Materials Research Institute of Industrial Technology, Xuzhou 221400, People's Republic of China
| | - Ying Wu
- School of Physics and Electronic Engineering, Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
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2
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Yao G, Liu C, Elsherbiny SM, Huang Q. Chiral Recognition of D/L-Ribose by Visual and SERS Assessments. Molecules 2023; 28:6480. [PMID: 37764256 PMCID: PMC10537478 DOI: 10.3390/molecules28186480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/14/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
Ribose is the central molecular unit in ribose nucleic acid (RNA). Ribose is a key molecule in the study of many persistent scientific mysteries, such as the origin of life and the chiral homogeneity of biological molecules. Therefore, the chiral recognition of ribose is of great significance. The traditional method of chiral recognition of ribose is HPLC, which is time-consuming, expensive, and can only be operated in the laboratory. There is no report on optical analytical techniques that can quickly detect the chirality of ribose. In this study, a simple and convenient approach for the chiral recognition of ribose has been developed. β-cyclodextrin(β-CD)-coated Ag NPs aggregate after adding D-ribose, so that D-/L-ribose can be identified using visual colorimetry and/or surface-enhanced Raman spectroscopy (SERS). The color change visible to the naked eye can readily distinguish the chirality of ribose, while the SERS method can provide the more sensitive analysis of enantiomeric ribose. The advantages of this method are that it is fast, convenient, low cost, and can be operated outside the laboratory. DFT calculations show that D-ribose and cyclodextrin have the same chirality, forming multiple strong hydrogen bonds between them; thus, D/L-ribose will induce different optical effects.
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Affiliation(s)
- Guohua Yao
- The Education Ministry Key Laboratory of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry of Ministry of Education, Shanghai Non-carbon Energy Conversion and Utilization Institute, Shanghai Normal University, Shanghai 200234, China;
- CAS Key Laboratory of Ion-Beam Bioengineering, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; (C.L.)
| | - Chao Liu
- CAS Key Laboratory of Ion-Beam Bioengineering, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; (C.L.)
| | - Shereen M. Elsherbiny
- CAS Key Laboratory of Ion-Beam Bioengineering, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; (C.L.)
| | - Qing Huang
- CAS Key Laboratory of Ion-Beam Bioengineering, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; (C.L.)
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3
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Thao NTP, Ton-That L, Dang CT, Nedoma J. Detailed Investigation of Factors Affecting the Synthesis of SiO 2@Au for the Enhancement of Raman Spectroscopy. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3080. [PMID: 36080115 PMCID: PMC9458010 DOI: 10.3390/nano12173080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/28/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
The reaction time, temperature, ratio of precursors, and concentration of sodium citrate are known as the main factors that affect the direct synthesis process of SiO2@Au based on the chemical reaction of HAuCl4 and sodium citrate. Hence, we investigated, in detail, and observed that these factors played a crucial role in determining the shape and size of synthesized nanoparticles. The significant enhancement of the SERS signal corresponding to the fabrication conditions is an existing challenge. Our study results show that the optimal reaction conditions for the fabrication of SiO2@Au are a 1:21 ratio of HAuCl4 to sodium citrate, with an initial concentration of sodium citrate of 4.2 mM, and a reaction time lasting longer than 6 h at a temperature of 80 °C. Under optimal conditions, our synthesis process result is SiO2@Au nanoparticles with a diameter of approximately 350 nm. In particular, the considerable enhancement of Raman intensities of SiO2@Au compared to SiO2 particles was examined.
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Affiliation(s)
- Nguyen Thi Phuong Thao
- Department of Telecommunications, VSB Technical University of Ostrava, 708 00 Ostrava, Czech Republic
| | - Loc Ton-That
- Future Materials & Devices Laboratory, Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang City 550000, Vietnam
| | - Cong-Thuan Dang
- Future Materials & Devices Laboratory, Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang City 550000, Vietnam
| | - Jan Nedoma
- Department of Telecommunications, VSB Technical University of Ostrava, 708 00 Ostrava, Czech Republic
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4
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Park JA, Seo Y, Sohn H, Park C, Min J, Lee T. Recent Trends in Biosensors Based on Electrochemical and Optical Techniques for Cyanobacterial Neurotoxin Detection. BIOCHIP JOURNAL 2022. [DOI: 10.1007/s13206-022-00054-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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5
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Sun J, Zhang Z, Li H, Yin H, Hao P, Dai X, Jiang K, Liu C, Zhang T, Yin J, Song Y, Zhou W, Gao J. Ultrasensitive SERS Analysis of Liquid and Gaseous Putrescine and Cadaverine by a 3D-Rosettelike Nanostructure-Decorated Flexible Porous Substrate. Anal Chem 2022; 94:5273-5283. [PMID: 35319200 DOI: 10.1021/acs.analchem.1c05013] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Putrescine and cadaverine are toxic biogenic amines in spoiled food, which poses a serious threat to food security. In this work, we reported a highly sensitive three-dimensional (3D)-rosettelike surface-enhanced Raman spectroscopy (SERS) substrate functionalized with a p-mercaptobenzoic acid (p-MBA) monolayer to detect liquid and gaseous putrescine and cadaverine in pork samples. The SERS substrate was made by a combination of the merit of the 3D morphology of ZnO nanorod arrays on a flexible porous poly(vinylidene fluoride) (PVDF) membrane and the in situ chemical growth of Au nanoparticle seeds on Au film-coated ZnO nanorods, which produced a 3D-rosettelike BigAuNP/Au/ZnO/P heterostructure with abundant SERS-active hot spots that significantly enhanced the localized surface plasmonic resonance (LSPR) effect and charge-transfer (CT) effect of Raman enhancement. This SERS substrate showed high sensitivity, reproducibility, stability, and uniformity. With the p-MBA molecular monolayer as the sensing interface, our SERS substrate realized the highly sensitive and quantitative detection of liquid putrescine and cadaverine within 10 min, with a limit of detection (LOD) of 3.2 × 10-16 and 1.6 × 10-13 M, respectively. Additionally, the sensor showed efficient SERS responses to gaseous amine molecules at low concentrations (putrescine: 1.26 × 10-9 M, cadaverine: 2.5 × 10-9 M). Further, the sensor was successfully applied to determine the total content of putrescine and cadaverine. Moreover, the practicability of this SERS sensor was verified by the measurement of liquid and gaseous amines in pork samples, and it showed great potential applications for sensitive detection of food spoilage.
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Affiliation(s)
- Jiaojiao Sun
- College of Biomedical Engineering, University of Science and Technology of China, Hefei 230026, China.,CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Zhiqiang Zhang
- College of Biomedical Engineering, University of Science and Technology of China, Hefei 230026, China.,CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China.,Changchun Guoke Biochemical Engineering Co., Ltd., Changchun 130000, China
| | - Haiwen Li
- College of Biomedical Engineering, University of Science and Technology of China, Hefei 230026, China.,CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Huancai Yin
- College of Biomedical Engineering, University of Science and Technology of China, Hefei 230026, China.,CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Peng Hao
- College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Xide Dai
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
| | - Keming Jiang
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Cong Liu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Tao Zhang
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Jian Yin
- College of Biomedical Engineering, University of Science and Technology of China, Hefei 230026, China.,CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China.,Shandong Guoke Biochemical Engineering Co., Ltd., Jinan 250000, China
| | - Yizhi Song
- College of Biomedical Engineering, University of Science and Technology of China, Hefei 230026, China.,CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Wuping Zhou
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China.,Shandong Guoke Biochemical Engineering Co., Ltd., Jinan 250000, China
| | - Jing Gao
- College of Biomedical Engineering, University of Science and Technology of China, Hefei 230026, China.,CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
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6
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Wang Q, Li J, Song Y, Duan L, Yan C, Qu L, Wu Y, Han C. Graphene-embedded oblique V-shaped silver nanoarrays for hydrophobic pollutants pre-concentration and high-sensitivity SERS detection. JOURNAL OF HAZARDOUS MATERIALS 2022; 426:128085. [PMID: 34959216 DOI: 10.1016/j.jhazmat.2021.128085] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/01/2021] [Accepted: 12/12/2021] [Indexed: 06/14/2023]
Abstract
A surface enhanced Raman scattering (SERS) substrate of silver nanorod modified with graphene and silver nanorod (AgNR@Graphene@AgNR) has been fabricated to improve the sensitivity of SERS detection of hydrophobic pollutants, in which, graphene is an interlayer and AgNR is arranged on both sides of the graphene. The embedded graphene could help the oblique V-shaped AgNR structure to improve the sensitivity of SERS detection with a significant electric field enhancement effect. The annealing treatment of the substrate, shortening the nanometer gap between the graphene and AgNR, is benefit for producing a large number of "hot spots" at the fold, which has been verified by the finite difference time domain (FDTD) simulation. The enhancement factor (EF) of AgNR@Graphene@AgNR could reach up to 1.6 × 108 with a good reproducibility. The substrate could achieve high-sensitivity detection of 4-chlorobiphenyl (PCB-3) and 3, 3', 4, 4'-tetrachlorobiphenyl (PCB-77) with the limit of detections (LODs) of 1.72 × 10-10 M and 2.11 × 10-8 M, and the effective identification of PCBs mixture has been realized through principal component analysis (PCA), which means that the AgNR@Graphene@AgNR substrate has a potential significance for the detection and analysis of hydrophobic pollutant mixtures in the environment.
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Affiliation(s)
- Qin Wang
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Jingwen Li
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Yuhang Song
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Lingfeng Duan
- Institute of Physics, Nanotechnology and Telecommunications, Peter the Great St. Petersburg Polytechnic University, St. Petersburg 195251, Russia
| | - Changchun Yan
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Lulu Qu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Ying Wu
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Caiqin Han
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
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7
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Vassalini I, Bontempi N, Federici S, Ferroni M, Gianoncelli A, Alessandri I. Cyclodextrins enable indirect ultrasensitive Raman detection of polychlorinated biphenyls captured by plasmonic bubbles. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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8
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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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9
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Koh EH, Moon JY, Kim SY, Lee WC, Park SG, Kim DH, Jung HS. A cyclodextrin-decorated plasmonic gold nanosatellite substrate for selective detection of bipyridylium pesticides. Analyst 2021; 146:305-314. [PMID: 33146158 DOI: 10.1039/d0an01703e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A cyclodextrin-decorated gold nanosatellite (AuNSL) substrate was developed as a surface-enhanced Raman scattering sensor for the selective sensing of bipyridylium pesticides such as paraquat (PQ), diquat (DQ), and difenzoquat (DIF). The AuNSL structure was fabricated via vacuum deposition of gold nanoparticles (AuNPs) on a gold nanopillar substrate, and a large density of hot-spots was formed for Raman signal enhancement. Thiolated β-cyclodextrin (SH-CD) was surface-modified on the AuNSL as a chemical receptor. The detection limit of PQ, DQ, and DIF on the SH-CD-coated AuNSL (CD-AuNSL) was 0.05 ppm for each, and showed linear correlation in a concentration range of 10 ppm-0.05 ppm. Then, selective bipyridylium pesticide detection was performed by comparing the Raman intensity of each pesticide with and without the washing step. After the washing step, 90% of the PQ, DQ, and DIF Raman signals were maintained on the CD-AuNSL substrate with a uniform selectivity in a mapping area of 200 μm × 200 μm. Furthermore, selective pesticide detection was performed using a ground-apple solution without pretreatment. Raman signals were clearly observed after the washing step and they showed a limit of detection down to a concentration of 0.05 ppm for each pesticide. Principal component analysis (PCA) of the binary and ternary mixtures of PQ, DQ, and DIF showed that each component could be easily identified via the typical Raman fingerprint analysis. The developed CD-AuNSL is expected to be applied for various chemical sensors, especially for pyridine-containing toxic substances in the environment and metabolite biomarkers in biofluids.
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Affiliation(s)
- Eun Hye Koh
- Advanced Nano-Surface Department, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam 51508, Republic of Korea.
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10
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Lee CW, Chia ZC, Hsieh YT, Tsai HC, Tai Y, Yu TT, Huang CC. A facile wet-chemistry approach to engineer an Au-based SERS substrate and enhance sensitivity down to ppb-level detection. NANOSCALE 2021; 13:3991-3999. [PMID: 33503079 DOI: 10.1039/d0nr06537d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A two-dimensional flexible surface-enhanced Raman scattering (SERS) filter substrate provides an alternative strategy for the highly sensitive portable detection of various toxic molecules and biomaterials. Herein, we developed a solid-liquid interfacial reduction reaction to post-engineer a solid Au nanostructure surface on filter paper to improve the SERS effect. Among four reductants (ascorbic acid, l-dopamine, hydroquinone (HQ), and formaldehyde), HQ possessed a larger oxidation overpotential and facilitated homogeneous growth, forming small Au branch-structure nanoparticles from HAuCl4 solution. Due to the surface effect by exposing abundant -OH groups and intrinsic aromatic rings from TNA/HQ on nano-gold, the SERS effect on positively charged analytes near the plasmonic Au surface was enhanced, while forming a protective layer against severe water interruption. The resulting SERS substrate with branched nano-gold provided several SERS-enhanced sites, increased the enhancement by more than 6 times compared to original SERS sensing, and displayed a 1.4-7.4 × 105 analytical enhancement factor, which leads to a limit of detection down to several ppb. Less than 6% of deviation in the SERS intensity at different sensing sites was observed. We successfully improved the primary SERS substrate using a high overpotential reductant. Owing to its soft and flexible properties, the paper-based SERS substrate can be used conveniently in different sizes, pasting on curved materials, detecting additives in fish, and preventing the coffee-ring effect, showing high practicality and potential commercial value in the future.
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Affiliation(s)
- Chien-Wei Lee
- Department of Photonics, Center of Applied Nanomedicine, Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan70101, Taiwan.
| | - Zi Chun Chia
- Department of Photonics, Center of Applied Nanomedicine, Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan70101, Taiwan.
| | - Yi-Ting Hsieh
- Department of Chemistry, Soochow University, Taipei 11102, Taiwan
| | - Hsiao-Chieh Tsai
- Department of Chemistry, Soochow University, Taipei 11102, Taiwan
| | - Yenpo Tai
- Department of Resources Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Teng-To Yu
- Department of Resources Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chih-Chia Huang
- Department of Photonics, Center of Applied Nanomedicine, Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan70101, Taiwan.
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11
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A review of aptamer-based SERS biosensors: Design strategies and applications. Talanta 2021; 227:122188. [PMID: 33714469 DOI: 10.1016/j.talanta.2021.122188] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/27/2021] [Accepted: 01/30/2021] [Indexed: 02/07/2023]
Abstract
Surface-enhanced Raman spectroscopy, due to its high sensitivity, unique vibrational fingerprint identification of molecules and easy operation, has been extensively applied in different fields. Aptamers, being the unique single stranded DNA/RNA sequences that can specifically recognize and seize the target analytes, combined with Surface-enhanced Raman spectroscopy (SERS), can offer potent multiplex detection capacity with high specificity and sensitivity. In this review, we summarize and classify the general working strategies of different types of aptamer-based SERS biosensors with diversified protocols which either take aptamer conformational change as intrinsic reporter, or make use of various extrinsic Raman reporters in different sensor designs via on/off approach, sandwich-type and magnetic nanoparticles (NPs)-assisted approach, and catalytic reaction assisted approach with amplification of alternative Raman signals. The advantages, applications and perspectives of these aptamer-based SERS biosensors are also discussed.
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12
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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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13
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Guo Y, Girmatsion M, Li HW, Xie Y, Yao W, Qian H, Abraha B, Mahmud A. Rapid and ultrasensitive detection of food contaminants using surface-enhanced Raman spectroscopy-based methods. Crit Rev Food Sci Nutr 2020; 61:3555-3568. [PMID: 32772549 DOI: 10.1080/10408398.2020.1803197] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
With the globalization of food and its complicated networking system, a wide range of food contaminants is introduced into the food system which may happen accidentally, intentionally, or naturally. This situation has made food safety a critical global concern nowadays and urged the need for effective technologies capable of dealing with the detection of food contaminants as efficiently as possible. Hence, Surface-enhanced Raman spectroscopy (SERS) has been taken as one of the primary choices for this case, due to its extremely high sensitivity, rapidity, and fingerprinting interpretation capabilities which account for its competency to detect a molecule up to a single level. Here in this paper, we present a comprehensive review of various SERS-based novel approaches applied for direct and indirect detection of single and multiple chemical and microbial contaminants in food, food products as well as water. The aim of this paper is to arouse the interest of researchers by addressing recent SERS-based, novel achievements and developments related to the investigation of hazardous chemical and microbial contaminants in edible foods and water. The target chemical and microbial contaminants are antibiotics, pesticides, food adulterants, Toxins, bacteria, and viruses. In this paper, different aspects of SERS-based reports have been addressed including synthesis and use of various forms of SERS nanostructures for the detection of a specific analyte, the coupling of SERS with other analytical tools such as chromatographic methods, combining analyte capture and recognition strategies such as molecularly imprinted polymers and aptasensor as well as using multivariate statistical analyses such as principal component analysis (PCA)to distinguish between results. In addition, we also report some strengths and limitations of SERS as well as future viewpoints concerning its application in food safety.
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Affiliation(s)
- Yahui Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Mogos Girmatsion
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technolgy, Massawa, Eritrea
| | - Hung-Wing Li
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Yunfei Xie
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - He Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Bereket Abraha
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technolgy, Massawa, Eritrea
| | - Abdu Mahmud
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technolgy, Massawa, Eritrea
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Cheng J, Wang P, Su XO. Surface-enhanced Raman spectroscopy for polychlorinated biphenyl detection: Recent developments and future prospects. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115836] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Wang J, Liu K, Jin S, Jiang L, Liang P. A Review of Chinese Raman Spectroscopy Research Over the Past Twenty Years. APPLIED SPECTROSCOPY 2020; 74:130-159. [PMID: 30646745 DOI: 10.1177/0003702819828360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This paper introduces the major Chinese research groups in the fields of biomedicine, food safety, environmental testing, material research, archaeological and cultural relics, gem identification, forensic science, and other research areas of Raman spectroscopy and combined methods spanning the two decades from 1997 to 2017. Briefly summarized are the research directions and contents of the major Chinese Raman spectroscopy research groups, giving researchers engaged in Raman spectroscopy research a more comprehensive understanding of the state of Chinese Raman spectroscopy research and future development trends to further develop Raman spectroscopy and its applications.
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Affiliation(s)
- Jie Wang
- Department of Optical and Electronic Technology, China Jiliang University, China
| | - Kaiyuan Liu
- Department of Optical and Electronic Technology, China Jiliang University, China
| | - Shangzhong Jin
- Department of Optical and Electronic Technology, China Jiliang University, China
| | - Li Jiang
- Department of Optical and Electronic Technology, China Jiliang University, China
| | - Pei Liang
- Department of Optical and Electronic Technology, China Jiliang University, China
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16
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A facile and label-free SERS approach for inspection of fipronil in chicken eggs using SiO 2@Au core/shell nanoparticles. Talanta 2019; 207:120324. [PMID: 31594576 DOI: 10.1016/j.talanta.2019.120324] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/03/2019] [Accepted: 09/04/2019] [Indexed: 01/10/2023]
Abstract
Fipronil is a phenylpyrazole insecticide commonly used in agriculture and residential applications. In this paper, we reported a novel label-free surface-enhanced Raman spectroscopy (SERS) method for detection of fipronil residues in chicken eggs (mostly accumulated on the egg membrane). We fabricated the SERS substrates composed of the SiO2@Au core/shell nanoparticles and probed the contamination of fipronil residue on the egg membrane. The identification of the characteristic Raman bands of fipronil was achieved with the aid of density functional theory (DFT) calculation, with which we could analyzed the trace amount of fipronil in a quantitative way. As such, this work may provide a practical solution to quick inspection of fipronil contamination in chicken eggs or other foods.
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17
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Recent Advances in Spectroscopy Technology for Trace Analysis of Persistent Organic Pollutants. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9173439] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Persistent organic pollutants (POPs) have attracted significant attention because of their bioaccumulation, persistence, and toxicity. As anthropogenic products, POPs mainly contain polychlorinated biphenyls (PCBs), organochlorine pesticides (OPs), and polycyclic aromatic hydrocarbons (PAHs), and they pose a great threat to human health and the environment. To deal with these toxic contaminants, many different kinds of strategies for sensitively detecting POPs have been developed, such as high performance liquid chromatography (HPLC), surface enhanced Raman spectroscopy (SERS), and fluorescence. This paper mainly summarized the achievements of spectroscopy technologies, which generally consist of SERS, surface plasmon resonance (SPR), and fluorescence, in the detection of low-concentration POPs in different matrices. In addition, a retrospective summary is made on several critical considerations, such as sensitivity, specificity and reproducibility of these spectroscopy technologies in practical applications. Finally, some current challenges and future outlooks for these spectroscopy technologies are provided in regards to environmental analysis.
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18
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HS-β-cyclodextrin-functionalized Ag@Fe3O4@Ag nanoparticles as a surface-enhanced Raman spectroscopy substrate for the sensitive detection of butyl benzyl phthalate. Anal Bioanal Chem 2019; 411:5691-5701. [DOI: 10.1007/s00216-019-01947-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 05/20/2019] [Accepted: 05/27/2019] [Indexed: 11/25/2022]
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19
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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: 95] [Impact Index Per Article: 15.8] [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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20
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Gellini C, Muniz-Miranda F, Pedone A, Muniz-Miranda M. SERS active Ag-SiO 2 nanoparticles obtained by laser ablation of silver in colloidal silica. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:2396-2404. [PMID: 30254834 PMCID: PMC6142779 DOI: 10.3762/bjnano.9.224] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 08/21/2018] [Indexed: 06/08/2023]
Abstract
Highly stable Ag-SiO2 nanoparticle composites were first obtained by laser ablation of a silver target in an aqueous colloidal dispersion of silica and examined by UV-vis absorption spectroscopy, transmission electron microscopy and Raman spectroscopy. The surface enhanced Raman scattering (SERS) activity of these nanocomposites was tested using 2,2'-bipyridine as a molecular reporter and excitation in the visible and near-IR spectral regions. The computational DFT approach provided evidence of ligand adsorption on positively charged adatoms of the silver nanostructured surface, in a very similar way to the metal/molecule interaction occurring in the corresponding Ag(I) coordination compound.
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Affiliation(s)
- Cristina Gellini
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Francesco Muniz-Miranda
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
- Center for Molecular Modeling, Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium
| | - Alfonso Pedone
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Maurizio Muniz-Miranda
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
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21
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Sapkota K, Chaudhary P, Han SS. Environmentally sustainable route to SiO 2@Au-Ag nanocomposites for biomedical and catalytic applications. RSC Adv 2018; 8:31311-31321. [PMID: 35548200 PMCID: PMC9085631 DOI: 10.1039/c8ra04502j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 08/30/2018] [Indexed: 02/03/2023] Open
Abstract
A facile, sustainable, operationally simple and mild method for the synthesis of SiO2@Au-Ag nanocomposites (NCs) using Nephrolepis cordifolia tuber extract is described and its catalytic, antibacterial and cytotoxic properties were investigated. The fabricated SiO2@Au-Ag NCs were well characterized by UV-visible spectroscopy, transmission electron microscopy (TEM), energy-dispersive X-ray (EDX), Fourier transform infrared (FT-IR) spectroscopy, powder X-ray diffraction (XRD), thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS) to determine the optical activity, size and morphology, elemental composition, functional groups present, crystallinity, thermal stability and chemical state respectively. The obtained SiO2@Au-Ag NCs exhibited spherical shape SiO2 decorated with Au and Ag nanoparticles. The diameter of the SiO2 nanoparticles ranges from 200-246 with average 3 nm diameter of Au and Ag NPs. Synthetic utility of this protocol has been demonstrated by exploring its effective catalytic activities for the solvent-free amidation of carboxylic acid with a primary amine with excellent yields. Moreover, the synthesized nanocomposite exhibited as noticeable antibacterial effect against Gram negative and Gram positive bacteria and better bio-compatibility against human keratinocytes. Thus, additive free SiO2@Au-Ag NCs display the potential for catalysis and biomedical applications.
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Affiliation(s)
- Kanti Sapkota
- School of Chemical Engineering, Yeungnam University 280 Daehak-Ro Gyeongsan Gyeongbuk 38541 Republic of Korea
- Department of Nano, Medical & Polymer Materials, College of Engineering, Yeungnam University 280 Daehak-Ro Gyeongsan Gyeongbuk 38541 Republic of Korea +82-53-810-4686 +82-53-810-2773
| | - Prerna Chaudhary
- School of Chemical Engineering, Yeungnam University 280 Daehak-Ro Gyeongsan Gyeongbuk 38541 Republic of Korea
- Department of Nano, Medical & Polymer Materials, College of Engineering, Yeungnam University 280 Daehak-Ro Gyeongsan Gyeongbuk 38541 Republic of Korea +82-53-810-4686 +82-53-810-2773
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University 280 Daehak-Ro Gyeongsan Gyeongbuk 38541 Republic of Korea
- Department of Nano, Medical & Polymer Materials, College of Engineering, Yeungnam University 280 Daehak-Ro Gyeongsan Gyeongbuk 38541 Republic of Korea +82-53-810-4686 +82-53-810-2773
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22
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Shi R, Liu X, Ying Y. Facing Challenges in Real-Life Application of Surface-Enhanced Raman Scattering: Design and Nanofabrication of Surface-Enhanced Raman Scattering Substrates for Rapid Field Test of Food Contaminants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6525-6543. [PMID: 28920678 DOI: 10.1021/acs.jafc.7b03075] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is capable of detecting a single molecule with high specificity and has become a promising technique for rapid chemical analysis of agricultural products and foods. With a deeper understanding of the SERS effect and advances in nanofabrication technology, SERS is now on the edge of going out of the laboratory and becoming a sophisticated analytical tool to fulfill various real-world tasks. This review focuses on the challenges that SERS has met in this progress, such as how to obtain a reliable SERS signal, improve the sensitivity and specificity in a complex sample matrix, develop simple and user-friendly practical sensing approach, reduce the running cost, etc. This review highlights the new thoughts on design and nanofabrication of SERS-active substrates for solving these challenges and introduces the recent advances of SERS applications in this area. We hope that our discussion will encourage more researches to address these challenges and eventually help to bring SERS technology out of the laboratory.
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Affiliation(s)
- Ruyi Shi
- College of Biosystems Engineering and Food Science , Zhejiang University , 866 Yuhangtang Road , Hangzhou , Zhejiang 310058 , China
| | - Xiangjiang Liu
- College of Biosystems Engineering and Food Science , Zhejiang University , 866 Yuhangtang Road , Hangzhou , Zhejiang 310058 , China
| | - Yibin Ying
- College of Biosystems Engineering and Food Science , Zhejiang University , 866 Yuhangtang Road , Hangzhou , Zhejiang 310058 , China
- Zhejiang A&F University , 88 Huanchengdong Road , Hangzhou , Zhejiang 311300 , China
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23
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Zhao X, Li M, Xu Z. Detection of Foodborne Pathogens by Surface Enhanced Raman Spectroscopy. Front Microbiol 2018; 9:1236. [PMID: 29946307 PMCID: PMC6005832 DOI: 10.3389/fmicb.2018.01236] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 05/22/2018] [Indexed: 01/21/2023] Open
Abstract
Food safety has become an important public health issue in both developed and developing countries. However, as the foodborne illnesses caused by the pollution of foodborne pathogens occurred frequently, which seriously endangered the safety and health of human beings. More importantly, the traditional techniques, such as PCR and enzyme-linked immunosorbent assay, are accurate and effective, but their pretreatments are complex and time-consuming. Therefore, how to detect foodborne pathogens quickly and sensitively has become the key to control food safety. Because of its sensitivity, rapidity, and non-destructive damage to the sample, the surface enhanced Raman scattering (SERS) is considered to be a powerful testing technology that is widely used to different fields. This review aims to give a systematic and comprehensive understanding of SERS for rapid detection of pathogen bacteria. First, the related concepts of SERS are stated, such as its work principal, active substrate, and biochemical origins of the detection of bacteria by SERS. Then the latest progress and applications in food safety, from detection and characterization of targets in label-free method to label method, is summarized. The advantages and limitations of different SERS substrates and methods are discussed. Finally, there are still several hurdles for the further development of SERS techniques into real-world applications. This review comes up with the perspectives on the future trends of the SERS technique in the field of foodborne pathogens detection and some problems to be solved urgently. Therefore, the purpose is mainly to understand the detection of foodborne pathogens and to make further emphasis on the importance of SERS techniques.
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Affiliation(s)
- Xihong Zhao
- Research Center for Environmental Ecology and Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Key Laboratory for Hubei Novel Reactor and Green Chemical Technology, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Mei Li
- Research Center for Environmental Ecology and Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Key Laboratory for Hubei Novel Reactor and Green Chemical Technology, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Zhenbo Xu
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
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24
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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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25
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Wu M, Li P, Zhu Q, Wu M, Li H, Lu F. Functional paper-based SERS substrate for rapid and sensitive detection of Sudan dyes in herbal medicine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:110-116. [PMID: 29438940 DOI: 10.1016/j.saa.2018.02.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 10/30/2017] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
There has been an increasing demand for rapid and sensitive techniques for the identification of Sudan compounds that emerged as the most often illegally added fat-soluble dyes in herbal medicine. In this report, we have designed and fabricated a functionalized filter paper consisting of gold nanorods (GNRs) and mono-6-thio-cyclodextrin (HS-β-CD) as a surface-enhanced Raman spectroscopy (SERS) substrate, in which the GNR provides sufficient SERS enhancement, and the HS-β-CD with strong chemical affinity toward GNR provides the inclusion compound to capture hydrophobic molecules. Moreover, the CD-GNR were uniformly assembled on filter paper cellulose through the electrostatic adsorption and hydrogen bond, so that the CD-GNR paper-based SERS substrate (CD-GNR-paper) demonstrated higher sensitivity for the determination of Sudan III (0.1μM) and Sudan IV (0.5μM) than GNRs paper-based SERS substrate (GNR-paper), with high stability after the storage in the open air for 90days. Importantly, CD-GNR-paper can effectively collect the Sudan dyes from illegally adulterated onto samples of Resina Draconis with a simple operation, further open up new exciting opportunity for SERS detection of more compounds illegally added with high sensitivity and fast signal responses.
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Affiliation(s)
- Mianmian Wu
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China; School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350108, China
| | - Pan Li
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China
| | - Qingxia Zhu
- Department of Pharmacy, Shanghai 9th People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Meiran Wu
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Hao Li
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Feng Lu
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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Wang K, Wang Y, Wang C, Jia X, Li J, Xiao R, Wang S. Facile synthesis of high-performance SiO2@Au core–shell nanoparticles with high SERS activity. RSC Adv 2018; 8:30825-30831. [PMID: 35548738 PMCID: PMC9085469 DOI: 10.1039/c8ra05213a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 08/28/2018] [Indexed: 12/14/2022] Open
Abstract
This study proposes a facile and general method for fabricating a wide range of high-performance SiO2@Au core–shell nanoparticles (NPs).
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Affiliation(s)
- Keli Wang
- Anhui Medical University
- Hefei
- PR China
- Beijing Institute of Radiation Medicine
- Beijing 100850
| | - Yanping Wang
- Beijing Institute of Radiation Medicine
- Beijing 100850
- PR China
| | - Chongwen Wang
- Beijing Institute of Radiation Medicine
- Beijing 100850
- PR China
- College of Life Science
- Anhui Agricultural University
| | - Xiaofei Jia
- Beijing Institute of Radiation Medicine
- Beijing 100850
- PR China
| | - Jia Li
- Beijing Institute of Radiation Medicine
- Beijing 100850
- PR China
| | - Rui Xiao
- Anhui Medical University
- Hefei
- PR China
- Beijing Institute of Radiation Medicine
- Beijing 100850
| | - Shengqi Wang
- Anhui Medical University
- Hefei
- PR China
- Beijing Institute of Radiation Medicine
- Beijing 100850
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27
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Zhang L, Luo Y, Zhao Y, Guan B, Zhang L, Yu B, Zhang W. Silver nanoparticle-incorporated ultralong hydroxyapatite nanowires with internal reference as SERS substrate for trace environmental pollutant detection. NEW J CHEM 2018. [DOI: 10.1039/c8nj03743d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Silver nanoparticle-incorporated HAPNWs as SERS substrates exhibit unique characteristics including stability, convenience and simple and environmentally friendly preparation.
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Affiliation(s)
- Lei Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Yongquan Luo
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Yameng Zhao
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Boxin Guan
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Lingyi Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Bohao Yu
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
| | - Weibing Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai
- P. R. China
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Hu Y, Zhao T, Zhu P, Zhu Y, Liang X, Sun R, Wong CP. Tailoring Size and Coverage Density of Silver Nanoparticles on Monodispersed Polymer Spheres as Highly Sensitive SERS Substrates. Chem Asian J 2016; 11:2428-35. [PMID: 27511618 DOI: 10.1002/asia.201600821] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 07/16/2016] [Indexed: 12/27/2022]
Abstract
Silver nanoparticles (AgNPs) were deposited onto the monodispersed carboxylic polystyrene (CPS) spheres by an improved in situ reduction method. The size and coverage density of the AgNPs on the surface of CPS spheres could be easily tailored by tuning the concentrations of carboxylic functional groups and silver precursor. The morphologies and structures of the resulting CPS/Ag hybrid particles were studied by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), UV-Vis-NIR spectrometer and X-ray photoelectron spectroscopy (XPS), etc. The surface enhanced Raman scattering (SERS) performances of the resulting uniform CPS/Ag hybrid particles were investigated using 4-aminobenzenethiol (4-ABT) as the probe molecule. The optimized CPS/Ag hybrid particles show high enhancement factor (EF) of 2.71×10(7) , low limit of detection (LOD) of 10(-10) m and good reproducibility with relative standard deviation (RSD) of 9.64 %. The good SERS improvement properties demonstrate these hybrid particles could be employed as simple and effective substrates in the SERS spectroscopy.
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Affiliation(s)
- Yougen Hu
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packing, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China.,Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Tao Zhao
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packing, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Pengli Zhu
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packing, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China. .,Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, 999077, P. R. China.
| | - Yu Zhu
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packing, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China.,Nano Science and Technology Institute, University of Sciences and Technology of China, Suzhou, Jiangsu, 215123, P. R. China
| | - Xianwen Liang
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packing, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Rong Sun
- Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packing, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Ching-Ping Wong
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, 999077, P. R. China.,School of Materials Sciences and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
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29
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Zhu C, Meng G, Zheng P, Huang Q, Li Z, Hu X, Wang X, Huang Z, Li F, Wu N. A Hierarchically Ordered Array of Silver-Nanorod Bundles for Surface-Enhanced Raman Scattering Detection of Phenolic Pollutants. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:4871-6. [PMID: 27112639 DOI: 10.1002/adma.201506251] [Citation(s) in RCA: 202] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/20/2016] [Indexed: 05/12/2023]
Abstract
A hierarchically ordered array of Ag-nanorod bundles is achieved using an inexpensive binary-template-assisted electrodeposition technique. In every bundle, many small gaps are formed between adjacent Ag-nanorods, where "hot spots" are generated. As a result, this plasmonic nanostructure exhibits SERS enhancements of approximately eight orders of magnitude with uniform and reproducible SERS signal throughout the whole chip.
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Affiliation(s)
- Chuhong Zhu
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Guowen Meng
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- Department of Materials Science & Engineering University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Peng Zheng
- Department of Mechanical and Aerospace Engineering, West Virginia University, P.O. Box 6106, Morgantown, WV, 26506, USA
| | - Qing Huang
- Institute of Technical Biology and Agriculture Engineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Zhongbo Li
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Xiaoye Hu
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Xiujuan Wang
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Zhulin Huang
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Fadi Li
- Key Laboratory of Materials Physics, CAS Center for Excellence in Nanoscience, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Nianqiang Wu
- Department of Mechanical and Aerospace Engineering, West Virginia University, P.O. Box 6106, Morgantown, WV, 26506, USA
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30
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Hahm E, Jeong D, Cha MG, Choi JM, Pham XH, Kim HM, Kim H, Lee YS, Jeong DH, Jung S, Jun BH. β-CD Dimer-immobilized Ag Assembly Embedded Silica Nanoparticles for Sensitive Detection of Polycyclic Aromatic Hydrocarbons. Sci Rep 2016; 6:26082. [PMID: 27184729 PMCID: PMC4869113 DOI: 10.1038/srep26082] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 04/27/2016] [Indexed: 11/09/2022] Open
Abstract
We designed a β-CD dimer on silver nanoparticles embedded with silica nanoparticles (Ag@SiO2 NPs) structure to detect polycyclic aromatic hydrocarbons (PAHs). Silica NPs were utilized as a template for embedding silver NPs to create hot spot structures and enhance the surface-enhanced Raman scattering (SERS) signal, and a thioether-bridged dimeric β-CD was immobilized on Ag NPs to capture PAHs. The assembled Ag NPs on silica NPs were confirmed by TEM and the presence of β-CD dimer on Ag@SiO2 was confirmed by UV-vis and attenuated total reflection-Fourier transform infrared spectroscopy. The β-CD dimer@Ag@SiO2 NPs were used as SERS substrate for detecting perylene, a PAH, directly and in a wide linearity range of 10−7 M to 10−2 M with a low detection limit of 10−8 M. Also, the β-CD dimer@Ag@SiO2 NPs exhibited 1000-fold greater sensitivity than Ag@SiO2 NPs in terms of their perylene detection limit. Furthermore, we demonstrated the possibility of detecting various PAH compounds using the β-CD dimer@Ag@SiO2 NPs as a multiplex detection tool. Various PAH compounds with the NPs exhibited their distinct SERS bands by the ratio of each PAHs. This approach of utilizing the assembled structure and the ligands to recognize target has potential for use in sensitive analytical sensors.
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Affiliation(s)
- Eunil Hahm
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Daham Jeong
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Myeong Geun Cha
- Department of Chemistry Education, Seoul National University, Seoul 151-742, Republic of Korea
| | - Jae Min Choi
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Xuan-Hung Pham
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Hyung-Mo Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Hwanhee Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Yoon-Sik Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Republic of Korea
| | - Dae Hong Jeong
- Department of Chemistry Education, Seoul National University, Seoul 151-742, Republic of Korea
| | - Seunho Jung
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
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31
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Sun K, Huang Q, Meng G, Lu Y. Highly Sensitive and Selective Surface-Enhanced Raman Spectroscopy Label-free Detection of 3,3',4,4'-Tetrachlorobiphenyl Using DNA Aptamer-Modified Ag-Nanorod Arrays. ACS APPLIED MATERIALS & INTERFACES 2016; 8:5723-5728. [PMID: 26849392 DOI: 10.1021/acsami.5b12866] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An improved label-free approach for highly sensitive and selective detection of 3,3',4,4'-tetrachlorobiphenyl (PCB-77), a type of polychlorinated biphenyl, via surface-enhanced Raman spectroscopy (SERS) using DNA aptamer-modified Ag-nanorod arrays as the effective substrate is reported. The devised system consists of Ag-nanorod (Ag-NR) arrays with the PCB-77 binding aptamers anchored covalently to the Ag surfaces through a thiol linker. The aptamers are made of single-stranded DNA (ssDNA) oligomers, with one end standing on the Ag surface, and upon conjugation with PCB-77, the ssDNA molecules can change their conformation to hairpin loops, so that the Raman intensity of guanines at the other end of the DNA strand increases accordingly. As such, the intensity ratio I(656 cm(-1))/I(733 cm(-1)) increases concomitantly with the increase of the concentration of PCB-77, making the quantitative evaluation of trace amounts of PCB-77 attainable. Moreover, it is found that the DNA aptamer-based Ag-NR arrays can be more responsive with a lower and optimal density of the DNA molecules modified on the substrate surface, and the best sensitivity for detection of PCB-77 can be achieved with the lower detection limit approaching 3.3 × 10(-8) M. This work therefore demonstrates that the design of aptamer-modified Ag-NRs can be used as a practically promising SERS substrate for label-free trace detection of persistent organic pollutants (POPs) in the environment.
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Affiliation(s)
| | - Qing Huang
- University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
| | - Guowen Meng
- University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
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32
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Hou M, Huang Y, Ma L, Zhang Z. Sensitivity and Reusability of SiO2 NRs@ Au NPs SERS Substrate in Trace Monochlorobiphenyl Detection. NANOSCALE RESEARCH LETTERS 2015; 10:444. [PMID: 26577388 PMCID: PMC4648809 DOI: 10.1186/s11671-015-1147-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 11/10/2015] [Indexed: 05/30/2023]
Abstract
Surface-enhanced Raman scattering (SERS) effect is quite preferred to detect trace pollutants, and reusable SERS substrate is of important practical value. In this research, a kind of effective SiO2 nanorods (NRs)@ Au nanoparticles (NPs) substrate was fabricated completely with physical methods, and it was quite sensitive so that 1 × 10(-6) M monochlorobiphenyl (CB) could be detected. Furthermore, congeners of CB could be detected by reusing this kind of SERS substrate, and the cleaning treatment between every two detections was very simple. The excellent performance of the reusable SERS substrate indicated its great application potential.
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Affiliation(s)
- Mengjing Hou
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China.
| | - Yu Huang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China.
| | - Lingwei Ma
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China.
| | - Zhengjun Zhang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China.
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33
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Abstract
This paper reports a new application of surface enhanced Raman scattering (SERS) in analysis of oxidation of glutathione to oxidized glutathione, an important biochemical redox reaction in biological systems.
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Affiliation(s)
- Shanshan Ma
- Key Laboratory of Ion Beam Bio-engineering
- Institute of Technical Biology and Agriculture Engineering
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei
| | - Qing Huang
- Key Laboratory of Ion Beam Bio-engineering
- Institute of Technical Biology and Agriculture Engineering
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei
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