1
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Zhang W, Zhang D, Wang P, Li X, Wang Z, Chen Q, Huang J, Yu Z, Guo F, Liang P. Development of a SERS aptasensor for the determination of L-theanine using a noble metal nanoparticle-magnetic nanospheres composite. Mikrochim Acta 2024; 191:158. [PMID: 38409501 DOI: 10.1007/s00604-024-06245-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/01/2024] [Indexed: 02/28/2024]
Abstract
An ultrasensitive surface-enhanced Raman spectroscopy (SERS) aptamer sensor (aptasensor) using a noble metal nanoparticle-magnetic nanospheres composite was developed for L-theanine detection. It makes use of Fe3O4@Au MNPs and Au@Ag NPs embedded with the Raman reporter 4-mercaptobenzoic acid (4MBA). Au@4MBA@Ag NPs modified by aptamer and Fe3O4@Au MNPs modified by cDNA created the aptasensor with the strongest Raman signal of 4MBA through the specific binding of the aptamer. With the preferred binding of L-theanine aptamer to L-theanine, Au@4MBA@Ag NPs were released from Fe3O4@Au MNPs, causing a linear decrease in SERS intensity to achieve the SERS detection of the L-theanine. The SERS peak of 4MBA at 1078 cm-1 was used for quantitative determination. SERS intensity showed a good log-linear relationship within the range 10-10 to 10-6 M of L-theanine. The aptasensor has a high selectivity for L-theanine compared with other twelve tested analytes. Hence, this aptasensor is a promising analytical tool for L-theanine detection. The developed method was applied to the analysis of real samples, demonstrating excellent performance. The comparison with the standard liquid chromatography mass spectrometry method showed an error within 20%.
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Affiliation(s)
- Wei Zhang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China
| | - De Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Pu Wang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiaoming Li
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China
| | - Zhetao Wang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China
| | - Qiang Chen
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Jie Huang
- State Key Laboratory of Rice Biology, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, 310029, China
| | - Zhi Yu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Fei Guo
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Pei Liang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China.
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2
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Ju J, Li L, Li B, Regmi S, Wang T, Xu J, Li C, Tang S. Surface-Enhanced Raman Scattering Active Core-Shell Ag NPs@Carbon Dots with Enzyme-Mimicking Activities for Label-Free Measurement Cholesterol. BIOSENSORS 2023; 13:927. [PMID: 37887120 PMCID: PMC10605028 DOI: 10.3390/bios13100927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 10/28/2023]
Abstract
Serological-sensitive testing of cholesterol holds significant value in the fields of healthcare and clinical diagnosis. This study reports on the preparation of peroxidase-mimicking nanozymes through the wrapping of N, S-doped carbon dots (DCDs) on the surface of silver nanoparticles (Ag NPs@DCD). The shell-core structure of Ag NPs@DCD displays peroxidase-mimicking capability, with the potential to catalyze inactive Raman probe molecules into the Raman reporters. Furthermore, a "shell-isolated nanoparticles-enhanced Raman spectroscopy" structure exhibited an enhanced Raman signal of reporter molecules. Ag NPs@DCD were utilized to create a label-free SERS sensing system for high-performance detection of cholesterol in serum samples. These results demonstrate the potential of the novel nanozyme-based SERS approach for clinical diagnosis.
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Affiliation(s)
- Jian Ju
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
- Oujiang Lab, Wenzhou 325001, China
| | - Lin Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
- School of Ophthalmology & Optometry, Wenzhou Medical University, Wenzhou 325035, China;
| | - Bei Li
- School of Ophthalmology & Optometry, Wenzhou Medical University, Wenzhou 325035, China;
- The State Key Lab of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Sagar Regmi
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA;
| | - Tingting Wang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
| | - Jiao Xu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
| | - Chaojie Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
| | - Shixing Tang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
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3
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Zhang D, Wu Z, Cao M, Ni D, Yu Z, Liang P. A facile heat-treatment solid phase microextraction method for SERS detection of isocarbophos in tea using a hand-held Raman spectrometer. Food Chem 2023; 424:136397. [PMID: 37247599 DOI: 10.1016/j.foodchem.2023.136397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/28/2023] [Accepted: 05/14/2023] [Indexed: 05/31/2023]
Abstract
A facile sensor system based on heat-treatment solid phase microextraction and Surface-Enhanced Raman Scattering (HT-SPME-SERS) was established for in-situ detection of isocarbophos in complex tea matrix. Starting from the action optimization of temperature control unit and air flow control unit, pesticide molecules volatilizing from solution are efficiently captured by substrate and generate real-time SERS signals by a hand-held Raman spectrometer, and the sensor system based on HT-SPME-SERS was finally established. A novel SERS substrate of Cu@rGO@Ag was developed as HT-SPME-SERS material, where reduced graphene oxide (rGO) enriched pesticide molecules by π-π stacking. A superior detection sensitivity brought by the ultra-high enhancement effect of Cu@rGO@Ag substrate was obtained. A good linear relationship between Raman intensity and isocarbophos concentration was obtained and the limit of detection (LOD) was as low as 0.00451 ppm. The detection results obtained from the sensor system have been verified by gas chromatography-mass spectrometer (GC-MS), showing its great application potential for the safety of agricultural products.
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Affiliation(s)
- De Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Zhuoqun Wu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Minhui Cao
- College of Science, Huazhong Agricultural University, 430070 Wuhan, China.
| | - Dejiang Ni
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China.
| | - Zhi Yu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China.
| | - Pei Liang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China.
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4
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Zhao W, Yang S, Zhang D, Zhou T, Huang J, Gao M, Jiang Y, Liu Y, Yang J. Ultrasensitive dual-enhanced sandwich strategy for simultaneous detection of Escherichia coli and Staphylococcus aureus based on optimized aptamers-functionalized magnetic capture probes and graphene oxide-Au nanostars SERS tags. J Colloid Interface Sci 2023; 634:651-663. [PMID: 36549213 DOI: 10.1016/j.jcis.2022.12.077] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/09/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
In this work, a novel surface-enhanced Raman scattering (SERS) sandwich strategy biosensing platform has been established for simultaneously detecting Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Fe3O4@SiO2-Au nanocomposites (NCs) with varying amounts of Au nanocrystals were prepared, and the effect of interparticle gaps on SERS activity was studied by finite-difference time-domain (FDTD) method. The optimal magnetic SERS-active substrates (FS-A5) were functionalized with the specific aptamers to act as capture probes. Meanwhile, graphene oxide-Au nanostars (GO-Au NSs) decorated with Raman reporters and aptamers were used as SERS tags. The loading density of Au NSs on GO was tuned to change the number of SERS active sites. In this proposal, E. coli and S. aureus were first captured by capture probes and then bound with SERS tags to form a sandwich-like structure, which caused enhanced electromagnetic field because of the dual enhancement strategy. Under optimal conditions, SERS platform could detect E. coli and S. aureus simultaneously, and the detection limit was as low as 10 cfu/mL. Our sandwich assay-based dual-enhanced SERS platform provides a new idea for simultaneously detecting multiple pathogens with high selectivity and sensitivity, and thus will have more hopeful prospects in the field of food safety.
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Affiliation(s)
- Wenshi Zhao
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuo Yang
- College of Science, Changchun University, Changchun 130022, China
| | - Daxin Zhang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China; Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tianxiang Zhou
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Jie Huang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Ming Gao
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Yuhong Jiang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China
| | - Yang Liu
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China.
| | - Jinghai Yang
- Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China.
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5
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Ji G, Tian J, Xing F, Feng Y. Optical Biosensor Based on Graphene and Its Derivatives for Detecting Biomolecules. Int J Mol Sci 2022; 23:10838. [PMID: 36142748 PMCID: PMC9500660 DOI: 10.3390/ijms231810838] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 12/24/2022] Open
Abstract
Graphene and its derivatives show great potential for biosensing due to their extraordinary optical, electrical and physical properties. In particular, graphene and its derivatives have excellent optical properties such as broadband and tunable absorption, fluorescence bursts, and strong polarization-related effects. Optical biosensors based on graphene and its derivatives make nondestructive detection of biomolecules possible. The focus of this paper is to review the preparation of graphene and its derivatives, as well as recent advances in optical biosensors based on graphene and its derivatives. The working principle of face plasmon resonance (SPR), surface-enhanced Raman spectroscopy (SERS), fluorescence resonance energy transfer (FRET) and colorimetric sensors are summarized, and the advantages and disadvantages of graphene and its derivatives applicable to various types of sensors are analyzed, and the methods of surface functionalization of graphene and its derivatives are introduced; these optical biosensors can be used for the detection of a range of biomolecules such as single cells, cellular secretions, proteins, nucleic acids, and antigen-antibodies; these new high-performance optical sensors are capable of detecting changes in surface structure and biomolecular interactions with the advantages of ultra-fast detection, high sensitivity, label-free, specific recognition, and the ability to respond in real-time. Problems in the current stage of application are discussed, as well as future prospects for graphene and its biosensors. Achieving the applicability, reusability and low cost of novel optical biosensors for a variety of complex environments and achieving scale-up production, which still faces serious challenges.
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Affiliation(s)
- Guangmin Ji
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
| | - Jingkun Tian
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
| | - Fei Xing
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
| | - Yu Feng
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
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6
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Rapid detection of illegal biguanides in hypoglycemic health products using molecular imprinting combined with SERS technology. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106523] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Shang Z, Li L, Zhang D, Wang CE, Tang Z, Zou M, Gong H, Yu Z, Jin S, Liang P. Competitive adsorption of residual polyvinylpyrrolidone and detection molecular on flower liked silver nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 255:119717. [PMID: 33794423 DOI: 10.1016/j.saa.2021.119717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/12/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
The silver nanoparticles have been frequently used in SERS detection, for their unique optical properties and sensitive surface Raman enhancement properties. However, as the preparation of silver nanoparticles will use polyvinylpyrrolidone (PVP) to achieve the effect of reducing agent and surfactant, the surface of the prepared silver nanoparticles will be wrapped by PVP, forming an insulating layer and an ill-defined AgNPs interface, which limits the plasmonic coupling between the laminates of AgNPs. This paper reported a simple method to remove PVP for high performance and reusable SERS substrate, and the residue of PVP was studied after clean centrifugal by ethanol or water. When the number of cleaning times reached 10, there was basically no residual of PVP. The cleaned AgNPs interface effectively enhanced the plasma resonance of the local surface (LSPR) and greatly improved the SERS activity of the substrate. Moreover, probe molecules (R6G) are introduced to study the influence of single molecule PVP on subsequent detection. Through the competitive relationship between the two, it can be concluded that residual PVP has basically no influence on detection of the molecular which absorbed stronger than PVP, and the remaining PVP can be ignored.
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Affiliation(s)
- Ziyang Shang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Liang Li
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - De Zhang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China; Key Laboratory of Urban Agriculture in Central China, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Cai-E Wang
- Department of Pharmacy, the First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - Zhexiang Tang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Mingqiang Zou
- Chinese Academy of Inspection and Quarantine (CAIQ), No.A 3, Gaobeidian Road, Chaoyang District, Beijing 100123, China; China Inspection Laboratory Technologies Co. Ltd (CILT), No.A 3, Gaobeidian Road, Chaoyang District, Beijing 100123, China
| | - Huaping Gong
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Zhi Yu
- Key Laboratory of Urban Agriculture in Central China, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Shangzhong Jin
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Pei Liang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China.
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8
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A novel SERS sensor for the ultrasensitive detection of kanamycin based on a Zn-doped carbon quantum dot catalytic switch controlled by nucleic acid aptamer and size-controlled gold nanorods. Food Chem 2021; 362:130261. [PMID: 34111691 DOI: 10.1016/j.foodchem.2021.130261] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/09/2021] [Accepted: 05/29/2021] [Indexed: 12/15/2022]
Abstract
In this study, a novel surface enhanced Raman spectroscopy (SERS) sensor was developed for the ultrasensitive determination of kanamycin in foods. The sensor used two distinct signal amplification strategies, namely the surface plasmon resonance of gold nanorods and a Zn-doped carbon quantum dots catalytic cascade oxidation-reduction reaction switch controlled by a nucleic acid aptamer. Under optimized experimental conditions, the SERS sensor demonstrated a linear range of 10-12 to 10-5 g mL-1 for the detection of kanamycin, with a limit of detection of 3.03 × 10-13 g mL-1. Experiments with antibiotics structurally similar to kanamycin and interferrants revealed that the sensor had excellent selectivity. Milkpowder and honey samples spiked with kanamycin were assayed, with recoveries ranging from 84.1% to 107.2% and a relative standard deviation of 0.74% to 2.81% being obtained. Quantification of kanamycin in milk samples revealed no significant difference between the results obtained with the sensor and by HPLC.
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9
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Wang Y, Ma S, Yu H, Liu Y, Gao J, Yang L, Zhang M, He G, Sun Z. Effect of TiO 2 arrays on surface enhanced Raman scattering (SERS) performance for Ag/TiO 2 substrates. NANOTECHNOLOGY 2021; 32:075708. [PMID: 33120370 DOI: 10.1088/1361-6528/abc5f4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ag/TiO2 nanostructure arrays were constructed on fluorine-doped tin oxide (FTO) via a controllable hydrothermal route and a magnetron sputtering method with a variety of TiO2 arrays decorated by Ag nanoparticles. Effects of different TiO2 arrays on the microstructure, composition, and optical properties of the samples were revealed. As surface enhanced Raman scattering (SERS) active substrates, we discussed the sensitivity and reproducibility of Ag/TiO2 nanostructure arrays for Rhodamine 6G (R6G) molecule detection. It was found that TiO2 nanosheet (TiO2(S)) array as a supporting made Ag nanoparticles have a uniform and continuous distribution, which achieved much higher SERS signals. The obtained Ag/TiO2(S) substrate had an improved enhancement factor of 4.31 × 105 compared with the other Ag/TiO2 nanostructure arrays of nanorods, nanotubes, and nanotrees. Furthermore, Ag/TiO2(S) active substrate showed good reproducibility with low relative standard deviation values. Such a remarkable SERS activity could be due to the synergistic effect of electromagnetic enhancement and charge transfer enhancement. Moreover, the TiO2(S) array with high-exposed {101} facets provided a large adhesion area and generated a strong interaction with external atoms, which would produce high-density 'hot spots' of SERS.
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Affiliation(s)
- Yanfen Wang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, People's Republic of China
| | - Shuai Ma
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, People's Republic of China
| | - Hai Yu
- School of Physics & Materials Science, Anhui University, Hefei 230601, People's Republic of China
| | - Yin Liu
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, People's Republic of China
| | - Juan Gao
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, People's Republic of China
| | - Lei Yang
- School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, People's Republic of China
| | - Miao Zhang
- School of Physics & Materials Science, Anhui University, Hefei 230601, People's Republic of China
| | - Gang He
- School of Physics & Materials Science, Anhui University, Hefei 230601, People's Republic of China
| | - Zhaoqi Sun
- School of Physics & Materials Science, Anhui University, Hefei 230601, People's Republic of China
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10
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Gong T, Huang Y, Wei Z, Huang W, Wei X, Zhang X. Magnetic assembled 3D SERS substrate for sensitive detection of pesticide residue in soil. NANOTECHNOLOGY 2020; 31:205501. [PMID: 32018230 DOI: 10.1088/1361-6528/ab72b7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Three-dimensional (3D) surface enhanced Raman scattering (SERS) substrates were produced by magnetic force assisting self-assembled nanoparticles in arrayed holes. Compared to '2D' plasmonic structures used in conventional SERS substrates, the 'hot spots' existed on whole depth of the 3D SERS substrates, which greatly enhanced the sensitivity. The prepared 3D SERS substrate was able to detect 4-aminothiophenol with a concentration down to 1 pM. Furthermore, the substrate was applied to detect hexachlorobenzene residue in soil, indicating its great potential for rapid and sensitive detection of extreme low concentrated molecules, especially pollutants residues in foods and environments.
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Affiliation(s)
- Tianxun Gong
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China
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11
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Jabłońska A, Jaworska A, Kasztelan M, Berbeć S, Pałys B. Graphene and Graphene Oxide Applications for SERS Sensing and Imaging. Curr Med Chem 2020; 26:6878-6895. [PMID: 30289065 DOI: 10.2174/0929867325666181004152247] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 09/17/2018] [Accepted: 09/18/2018] [Indexed: 11/22/2022]
Abstract
Surface Enhanced Raman Spectroscopy (SERS) has a long history as an ultrasensitive platform for the detection of biological species from small aromatic molecules to complex biological systems as circulating tumor cells. Thanks to unique properties of graphene, the range of SERS applications has largely expanded. Graphene is efficient fluorescence quencher improving quality of Raman spectra. It contributes also to the SERS enhancement factor through the chemical mechanism. In turn, the chemical flexibility of Reduced Graphene Oxide (RGO) enables tunable adsorption of molecules or cells on SERS active surfaces. Graphene oxide composites with SERS active nanoparticles have been also applied for Raman imaging of cells. This review presents a survey of SERS assays employing graphene or RGO emphasizing the improvement of SERS enhancement brought by graphene or RGO. The structure and physical properties of graphene and RGO will be discussed too.
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Affiliation(s)
- Anna Jabłońska
- Chemical and Biological Research Centre, University of Warsaw, Zwirki i Wigury str. 101, Warsaw, PL-02- 089, Poland
| | - Aleksandra Jaworska
- Faculty of Chemistry, University of Warsaw, Pasteur str. 1, Warsaw, PL-02-093, Poland
| | - Mateusz Kasztelan
- Faculty of Chemistry, University of Warsaw, Pasteur str. 1, Warsaw, PL-02-093, Poland
| | - Sylwia Berbeć
- Faculty of Chemistry, University of Warsaw, Pasteur str. 1, Warsaw, PL-02-093, Poland
| | - Barbara Pałys
- Chemical and Biological Research Centre, University of Warsaw, Zwirki i Wigury str. 101, Warsaw, PL-02- 089, Poland
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12
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Zhao H, Huang D, Zhu S. Multibranch Gold Nanoparticles as Surface-Enhanced Raman Spectroscopy Substrates for Rapid and Sensitive Analysis of Fipronil in Eggs. SENSORS (BASEL, SWITZERLAND) 2019; 19:E5354. [PMID: 31817310 PMCID: PMC6960814 DOI: 10.3390/s19245354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 11/30/2019] [Accepted: 12/03/2019] [Indexed: 01/09/2023]
Abstract
A sensitive strategy to rapidly detect fipronil residues in eggs using multibranch gold nanoparticles (AuNPs) as the substrate of surface-enhanced Raman spectroscopy (SERS) was investigated in this study. Under optimized conditions, fipronil molecules preferentially deposited on the multibranch gold nanoparticles with preferential (111) facet-oriented growth due to its low surface energy. This anisotropic growth promoted the increase of SERS "hot spots", inducing a huge enhancement of Raman signals of the fipronil. An external standard calibration method was employed for quantitative analysis, and the method was validated for linearity, sensitivity, repeatability and recovery. Good linearity were found in the concentration range of 10 ng/L~10 mg/L in fipronil acetone solution (R2 = 0.9916) and 8 × 10-5 mg/m2 to 0.8 mg/m2 on eggshells (R2 = 0.9906), respectively. The recovery rate based on acetone recovered fipronil on eggshells and in egg liquids was 80.13%~87.87%, and 81.34%~88.89%, respectively. The SERS assay was successfully used to monitor fipronil in eggs.
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Affiliation(s)
| | - Dandan Huang
- College of Chemistry and Material Science, Shandong Agricultural University, Tai’an 271000, China;
| | - Shuhua Zhu
- College of Chemistry and Material Science, Shandong Agricultural University, Tai’an 271000, China;
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13
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Song Y, Zhang Y, Huang Y, Fan Y, Lai K. Rapid Determination of Thiram Residues in Fruit Juice by surface-enhanced Raman Scattering Coupled with a Gold@Silver nanoparticle-graphene Oxide Composite. ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1691220] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Yuying Song
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Yuanyi Zhang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Yiqun Huang
- School of Chemical and Biological Engineering, Changsha University of Science and Technology, Hunan, China
| | - Yuxia Fan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Engineering Research Center of Food Thermal-Processing Technology, Shanghai, China
| | - Keqiang Lai
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Engineering Research Center of Food Thermal-Processing Technology, Shanghai, China
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14
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Xia J, Wang D, Liang P, Zhang D, Du X, Ni D, Yu Z. Vibrational (FT-IR, Raman) analysis of tea catechins based on both theoretical calculations and experiments. Biophys Chem 2019; 256:106282. [PMID: 31756664 DOI: 10.1016/j.bpc.2019.106282] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/10/2019] [Accepted: 11/12/2019] [Indexed: 12/27/2022]
Abstract
Structural investigations, based on density functional theory (DFT) calculations, are performed on tea catechins, including 4-aminobutyric acid (GABA), L-theanine (Thea), caffeine (CAF), theobromine (TB), theophylline (TP), catechin (C), epicatechin (EC), gallocatechin (GC), epigallocatechin (EGC), catechin gallate (CG), epicatechin gallate (ECG), gallocatechin gallate (GCG) and epigallocatechin gallate (EGCG). With an identified lowest energy conformer of investigated molecules, FTIR and FT-Raman spectra have been assigned according to DFT calculations in the way of B3LYP/6-31 + G (d, p). Normal spectra of these catechin powders are also measured by Raman spectrometers. There is a kind of everlasting correlation between experimental results and theoretical data. And our research has also obtained a clear evidence for reliable assignments of vibrational bands, bringing great feasibility to the rapid tea catechin detection.
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Affiliation(s)
- Jing Xia
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China; College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Dan Wang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China
| | - Pei Liang
- College of Optical and Electronic Technology, China Jiliang University, 310018 Hangzhou, China.
| | - De Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Xiaoqing Du
- School of Materials Science and Energy Engineering, Foshan University, Foshan, Guangdong 528000, China
| | - Dejiang Ni
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Zhi Yu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China.
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15
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16
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SERS based determination of vanillin and its methyl and ethyl derivatives using flower-like silver nanoparticles on a silicon wafer. Mikrochim Acta 2019; 186:302. [DOI: 10.1007/s00604-019-3424-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 04/08/2019] [Indexed: 12/13/2022]
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17
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Liu J, Ma Q, Huang Z, Liu G, Zhang H. Recent Progress in Graphene-Based Noble-Metal Nanocomposites for Electrocatalytic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1800696. [PMID: 30256461 DOI: 10.1002/adma.201800696] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/22/2018] [Indexed: 06/08/2023]
Abstract
The fast industrialization process has led to global challenges in the energy crisis and environmental pollution, which might be solved with clean and renewable energy. Highly efficient electrochemical systems for clean-energy collection require high-performance electrocatalysts, including Au, Pt, Pd, Ru, etc. Graphene, a single-layer 2D carbon nanosheet, possesses many intriguing properties, and has attracted tremendous research attention. Specifically, graphene and graphene derivatives have been utilized as templates for the synthesis of various noble-metal nanocomposites, showing excellent performance in electrocatalytic-energy-conversion applications, such as the hydrogen evolution reaction and CO2 reduction. Herein, the recent progress in graphene-based noble-metal nanocomposites is summarized, focusing on their synthetic methods and electrocatalytic applications. Furthermore, some personal insights on the challenges and possible future work in this research field are proposed.
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Affiliation(s)
- Jiawei Liu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Qinglang Ma
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zhiqi Huang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Guigao Liu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Hua Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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Yin H, Xie M, Zhang L, Huang J, Xu Z, Li H, Jiang R, Wang R, Zeng X. Identification of sewage markers to indicate sources of contamination: Low cost options for misconnected non-stormwater source tracking in stormwater systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:125-134. [PMID: 30114583 DOI: 10.1016/j.scitotenv.2018.07.448] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 07/17/2018] [Accepted: 07/30/2018] [Indexed: 06/08/2023]
Abstract
There has been increasing research focusing on the detection and occurrence of wastewater contamination in urban water systems. To find suitable markers to indicate industrial and domestic sewage flows inappropriately entering storm drains, this study investigated the occurrence and fate of 52 chemical markers through wastewater treatment facilities of manufacturers of agricultural and sideline products, beverage products, and pharmaceutical products, which are also consumed in our daily life. Of the 52 candidate markers, sodium, chloride, potassium, isomalto-oligosaccharide, acesulfame, theanine, glycerol, and clarithromycin were found to be conservative markers, with an average change in concentrations through the wastewater treatment processes of <30%. These markers are useful in identifying industrial and domestic sewage flow contamination in urban sewers. Specially, sodium, chloride, potassium, isomalto-oligosaccharide, acesulfame, and clarithromycin exhibited higher concentrations in blackwater than in greywater, with detected average concentrations of 43.8 mg/L, 189 mg/L, 37.3 mg/L, 123 μg/L, 37.2 μg/L, and 0.99 μg/L in blackwater, respectively. In contrast, theanine and glycerol were observed with higher concentrations in greywater than in blackwater (average 10.1 μg/L and 19.5 μg/L in greywater, respectively). The benchmark concentrations to discriminate between industrial and domestic sewage were also presented. A study in a storm drainage system of downstream Taihu catchment, China demonstrated the usefulness of the markers as low-cost options to trace and quantify misconnected wastewater entries into storm drains, while denoting priority areas for misconnected entries correction.
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Affiliation(s)
- Hailong Yin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China, 200092
| | - Ming Xie
- Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China
| | - Lunyuan Zhang
- Six Design Institute, Shanghai Municipal Engineering Design Institute (Group) Co., Ltd, Hefei 230061, China
| | - Jingshui Huang
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China, 200092
| | - Zuxin Xu
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China, 200092; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Huaizheng Li
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China, 200092
| | - Renjing Jiang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China, 200092
| | - Rongchang Wang
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China, 200092; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Xu Zeng
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China, 200092; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
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19
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Tsai MH, Lin YK, Luo SC. Electrochemical SERS for in Situ Monitoring the Redox States of PEDOT and Its Potential Application in Oxidant Detection. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1402-1410. [PMID: 30562457 DOI: 10.1021/acsami.8b16989] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In response to recent developments for applying conducting polymers on various biomedical applications, the development of characterization techniques for evaluating the states of conducting polymers in liquids is beneficial to the applications of these materials. In this study, we propose a platform using electrochemical surface-enhanced Raman scattering (EC-SERS) technology, which allows a direct measurement of the redox states of conducing polymers in liquids. A thiophene-based conducting polymer, hydroxymethyl poly(3,4-ethylenedioxythiophene) or poly(EDOT-OH), was used to demonstrate this concept. Poly(EDOT-OH) films were coated on Au nanoparticle-coated ITO glass as SERS-active substrates. Taking the advantage of Raman enhancement, we can in situ and clearly monitor the redox behavior of poly(EDOT-OH) in aqueous solutions. The Raman peak intensity decreases as the poly(EDOT-OH) film is oxidized. Furthermore, we demonstrated our idea to utilize this phenomenon as the sensing mechanism for oxidant detection. The Raman intensity of conducting polymers reduces faster when oxidants exist, and we obtain a quantitative analysis for the detection of oxidants. Moreover, the oxidized poly(EDOT-OH) films can be reused for detection of oxidants simply by applying a reduction potential to activate the poly(EDOT-OH) films. The film stability was also confirmed, and the detection of two other oxidants, namely ammonium persulfate and iron chloride, were also demonstrated. The results show different SERS spectra of poly(EDOT-OH) films oxidized by using different oxidants. Besides, the oxidized films can be easily recovered simply by applying a cathodic potential, which allows repeating usage and makes it possible for continuous monitoring applications. To the best of our knowledge, this is the first time to apply PEDOT's Raman feature for detection purposes.
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Wang Z, Wu S, Colombi Ciacchi L, Wei G. Graphene-based nanoplatforms for surface-enhanced Raman scattering sensing. Analyst 2018; 143:5074-5089. [PMID: 30280724 DOI: 10.1039/c8an01266k] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Surface-enhanced Raman scattering (SERS) is one of the important techniques for sensing applications in biological analysis, disease diagnosis, environmental science, and food safety. Graphene provides an excellent nanoplatform for SERS sensing due to its two-dimensional flat structure, uniform electronic and photonic properties, excellent mechanical stability, atomic uniformity, and high biocompatibility. In this review, we summarize recent advances in the fabrication of various graphene-based nanoplatforms for SERS sensing. We present the strategies, such as self-assembly, in situ synthesis, one-pot synthesis, liquid phase reduction, and biomimetic synthesis, for the fabrication of graphene-based hybrid metallic and alloy nanoplatforms, and then demonstrate the potential applications of graphene-based nanoplatforms for the SERS sensing of ions, organic dyes, pesticides, bacteria, DNA, proteins, cells, and other chemicals in great detail. In addition, we also discuss the future development of this interesting research field and provide several perspectives. This work will be helpful for readers to understand the fabrication and sensing mechanisms of graphene-based SERS sensing nanoplatforms; meanwhile, it will promote the development of new materials and novel methods for high performance sensing and biosensing applications.
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Affiliation(s)
- Zhuqing Wang
- AnHui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Anqing Normal University, 246011 Anqing, China
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21
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Facile fabrication of silver nanoparticles deposited cellulose microfiber nanocomposites for catalytic application. J Colloid Interface Sci 2018; 526:194-200. [DOI: 10.1016/j.jcis.2018.04.045] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 01/27/2023]
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22
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Hassan MM, Chen Q, Kutsanedzie FYH, Li H, Zareef M, Xu Y, Yang M, Agyekum AA. rGO-NS SERS-based coupled chemometric prediction of acetamiprid residue in green tea. J Food Drug Anal 2018; 27:145-153. [PMID: 30648567 PMCID: PMC9298640 DOI: 10.1016/j.jfda.2018.06.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/14/2018] [Accepted: 06/19/2018] [Indexed: 11/25/2022] Open
Abstract
Pesticide residue in food is of grave concern in recent years. In this paper, a rapid, sensitive, SERS (Surface-enhanced Raman scattering) active reduced-graphene-oxide-gold-nano-star (rGO-NS) nano-composite nanosensor was developed for the detection of acetamiprid (AC) residue in green tea. Different concentrations of AC combined with rGO-NS nano-composite electro-statically, yielded a strong SERS signal linearly with increasing concentration of AC ranging from 1.0 × 10−4 to 1.0 × 103 μg/mL indicating the potential of rGO-NS nanocomposite to detect AC in green tea. Genetic algorithm-partial least squares regression (GA-PLS) algorithm was used to develop a quantitative model for AC residue prediction. The GA-PLS model achieved a correlation coefficient (Rc) of 0.9772 and recovery of the real sample of 97.06%–115.88% and RSD of 5.98% using the developed method. The overall results demonstrated that Raman spectroscopy combined with SERS active rGO-NS nanocomposite could be utilized to determine AC residue in green tea to achieve quality and safety.
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Affiliation(s)
- Md Mehedi Hassan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Quansheng Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Felix Y H Kutsanedzie
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Huanhuan Li
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Muhammad Zareef
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yi Xu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Mingxiu Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Akwasi A Agyekum
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
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23
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Kang C, Xiao K, Yao Z, Wang Y, Huang D, Zhu L, Liu F, Tian T. Hydrothermal synthesis of graphene-ZnTiO3 nanocomposites with enhanced photocatalytic activities. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3512-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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24
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Qian D, Chen D, Li N, Xu Q, Li H, He J, Lu J. TiO2/sulfonated graphene oxide/Ag nanoparticle membrane: In situ separation and photodegradation of oil/water emulsions. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.084] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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25
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Wang M, Shi G, Zhu Y, Wang Y, Ma W. Au-Decorated Dragonfly Wing Bioscaffold Arrays as Flexible Surface-Enhanced Raman Scattering (SERS) Substrate for Simultaneous Determination of Pesticide Residues. NANOMATERIALS 2018; 8:nano8050289. [PMID: 29710795 PMCID: PMC5977303 DOI: 10.3390/nano8050289] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 04/18/2018] [Accepted: 04/26/2018] [Indexed: 11/17/2022]
Abstract
Rapid sampling and multicomponent analysis are vital in pesticide residue detection. In this work, we proposed a SERS platform to detect three kinds of pesticides on apple peels simultaneously by a straightforward “press and peel off” method. The flexible Au/dragonfly wing (Au/DW) substrate was obtained from sputtering Au nanoislands on DW bioscaffold arrays by a simple direct current (DC) magnetron sputtering system. The high-performance substrate exhibited a low limit of detection (LOD) to 4-aminothiophenol (4-ATP) (10−9 M), outstanding reproducibility (less than 12.15%), good stability and suitability in multifold pesticide residues detection. Considering its excellent sample collection efficiency, the Au/DW substrate was employed to solve critical pesticide residue problems for detection of acephate (APT), cypermethrin (CPT), tsumacide (MTMC) and their multiple components on apple peels. The results show that the LOD was 10−3 ng/cm2 for APT obtained on the apple surface with a calculation equation of y = 0.26x + 6.68 and a determination coefficient (R2) of 0.970. Additionally, the LOD values for CPT and MTMC were 10−3 ng/cm2 and 10−4 ng/cm2, respectively. The finding in this work may provide a promising biomimetic SERS platform for on-spot detection of other organic pollutants in the food industry and inenvironmental protection.
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Affiliation(s)
- Mingli Wang
- Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao, Hebei 066004, China.
| | - Guochao Shi
- Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao, Hebei 066004, China.
| | - Yanying Zhu
- Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao, Hebei 066004, China.
| | - Yuhong Wang
- Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao, Hebei 066004, China.
| | - Wanli Ma
- Department of Mathematics, NC State University, Raleigh, NC 276968205, USA.
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26
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Bu T, Ma X, Zhao B, Song W. Facile Synthesis of C3N4/Ag Composite Nanosheets as SERS Substrate for Monitoring the Catalytic Degradation of Methylene Blue. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7212-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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27
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Ai YJ, Liang P, Wu YX, Dong QM, Li JB, Bai Y, Xu BJ, Yu Z, Ni D. Rapid qualitative and quantitative determination of food colorants by both Raman spectra and Surface-enhanced Raman Scattering (SERS). Food Chem 2018; 241:427-433. [DOI: 10.1016/j.foodchem.2017.09.019] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/28/2017] [Accepted: 09/04/2017] [Indexed: 10/18/2022]
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28
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Zheng HW, Liang X, Yu YH, Wang K, Zhang XA, Men BQ, Diao CL, Peng CX, Yue GT. Bi 5FeTi 3O 15 nanofibers/graphene nanocomposites as an effective counter electrode for dye-sensitized solar cells. NANOSCALE RESEARCH LETTERS 2017; 12:18. [PMID: 28058654 PMCID: PMC5216002 DOI: 10.1186/s11671-016-1799-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 12/16/2016] [Indexed: 06/06/2023]
Abstract
The present study reports Bi5FeTi3O15 (BFTO) nanofibers/graphene (Gr) nanocomposites (BGr) as counter electrodes (CEs) in dye-sensitized solar cells (DSSCs). BFTO nanofibers with diameters of 40-100 nm were fabricated by sol-gel based electrospinning technique. The microstructure and surface morphology of the BFTO nanofibers and the BGr nanocomposites were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The electrochemical performances of BGr CEs were comprehensively characterized and investigated. Compared to pristine BFTO, the nanocomposites have a marked improvement in electrocatalytic performance for the reduction of triiodide because of larger surface area and lower transfer resistance on the electrolyte-electrode interface. The maximum power conversion efficiency has reached 9.56%, which is much larger than that of pure BFTO CEs (0.22%).
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Affiliation(s)
- H. W. Zheng
- School of Physics and Electronics, Institute of Microsystem, and Laboratory of Photovoltaic Materials of Henan Province, Henan University, Kaifeng, 475004 China
| | - X. Liang
- School of Physics and Electronics, Institute of Microsystem, and Laboratory of Photovoltaic Materials of Henan Province, Henan University, Kaifeng, 475004 China
| | - Y. H. Yu
- School of Physics and Electronics, Institute of Microsystem, and Laboratory of Photovoltaic Materials of Henan Province, Henan University, Kaifeng, 475004 China
| | - K. Wang
- School of Physics and Electronics, Institute of Microsystem, and Laboratory of Photovoltaic Materials of Henan Province, Henan University, Kaifeng, 475004 China
| | - X. A. Zhang
- School of Physics and Electronics, Institute of Microsystem, and Laboratory of Photovoltaic Materials of Henan Province, Henan University, Kaifeng, 475004 China
| | - B. Q. Men
- Department of Electronic Information Engineering, Henan Vocational College of Agriculture, Zhengzhou, 451450 China
| | - C. L. Diao
- School of Physics and Electronics, Institute of Microsystem, and Laboratory of Photovoltaic Materials of Henan Province, Henan University, Kaifeng, 475004 China
| | - C. X. Peng
- School of Physics and Electronics, Institute of Microsystem, and Laboratory of Photovoltaic Materials of Henan Province, Henan University, Kaifeng, 475004 China
| | - G. T. Yue
- School of Physics and Electronics, Institute of Microsystem, and Laboratory of Photovoltaic Materials of Henan Province, Henan University, Kaifeng, 475004 China
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29
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Wu YX, Liang P, Dong QM, Bai Y, Yu Z, Huang J, Zhong Y, Dai YC, Ni D, Shu HB, Pittman CU. Design of a silver nanoparticle for sensitive surface enhanced Raman spectroscopy detection of carmine dye. Food Chem 2017; 237:974-980. [DOI: 10.1016/j.foodchem.2017.06.057] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 05/10/2017] [Accepted: 06/07/2017] [Indexed: 10/19/2022]
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30
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Rapid Surface Enhanced Raman Scattering (SERS) Detection of Sibutramine Hydrochloride in Pharmaceutical Capsules with a β-Cyclodextrin- Ag/Polyvivnyl Alcohol Hydrogel Substrate. SENSORS 2017; 17:s17071601. [PMID: 28698502 PMCID: PMC5539472 DOI: 10.3390/s17071601] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 06/17/2017] [Accepted: 06/20/2017] [Indexed: 11/16/2022]
Abstract
Sibutramine hydrochloride (SH) is a banned weight-loss drug, but its illegal addition to health products is still rampant. This suggests a very urgent need for a fast and precise detection method for SH. Surface Enhanced Raman Scattering (SERS) is a promising candidate for this purpose, but the weak affinity between SH and bare metal limits its direct SERS detection. In the present work, β-cyclodextrin was capped in situ onto the surface of Ag nanoparticles to function as a scaffold to capture SH. The obtained Ag nanoparticles were encapsulated into polyvinyl alcohol (PVA) to fabricate a SERS active hydrogel with excellent reproducibility. A facile SERS strategy based on such substrate was proposed for trace SH quantification with a linear range of 7.0–150.0 µg·mL–1, and a detection limit low to 3.0 µg·mL−1. It was applied to analyze seven types of commercial slimming capsules with satisfactory results, showing good prospect for real applications.
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31
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Xia L, Wu S, Wang J, Ma C, Song P. Spectral proof for the 4-aminophenyl disulfide plasma assisted catalytic reaction. Sci Rep 2017; 7:4358. [PMID: 28659594 PMCID: PMC5489477 DOI: 10.1038/s41598-017-04658-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 04/24/2017] [Indexed: 11/09/2022] Open
Abstract
4-Aminophenyl disulfide (APDS) forms on the surface of silver nanoparticles due to chemical adsorption and disulfide bond breakage. This leads to the formation of new silver chemical bonds to result in the new compound NH2-C6H6-S-Ag. This novel material produces enhanced Raman spectra under weak laser light irradiation. When irradiated a plasma-assisted catalytic coupling reaction of NH2-C6H6-S-Ag occurs leading to the formation of 4,4-dimercaptoazobenzene (DMAB). Raman spectroscopy was used to monitor this reaction process, showing clear spectral changes associated with each step after addition of Ag nanoparticles onto the APDS powder. This method clearly shows the mechanism of the plasma-assisted catalytic reaction and may also be useful for spectral imaging purposes.
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Affiliation(s)
- Lixin Xia
- Department of Chemistry, Liaoning University, Shenyang, 110036, P. R. China.
| | - Shiwei Wu
- Department of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Jing Wang
- Department of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Caiqing Ma
- Department of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Peng Song
- Department of Physics, Liaoning University, Shenyang, 110036, P. R. China.
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32
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Huang J, Liang P, Xu J, Wu Y, Shen W, Xu B, Zhang D, Xia J, Zhuang S. Qualitative and quantitative determination of coumarin using surface-enhanced Raman spectroscopy coupled with intelligent multivariate analysis. RSC Adv 2017. [DOI: 10.1039/c7ra09059e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Coumarin is harmful to health but still used in cosmetics, tobacco, or illegally added into food as a spice in trace amounts so that it is exceedingly difficult to be determined accurately.
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Affiliation(s)
- J. Huang
- College of Optical Electrical and Computer Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
- College of Optical and Electronic Technology
| | - P. Liang
- College of Optical and Electronic Technology
- China Jiliang University
- 310018 Hangzhou
- China
| | - J. Xu
- College of Optical Electrical and Computer Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
| | - Y. Wu
- College of Optical and Electronic Technology
- China Jiliang University
- 310018 Hangzhou
- China
| | - W. Shen
- College of Optical and Electronic Technology
- China Jiliang University
- 310018 Hangzhou
- China
| | - B. Xu
- College of Optical and Electronic Technology
- China Jiliang University
- 310018 Hangzhou
- China
| | - D. Zhang
- College of Horticulture & Forestry Sciences
- Huazhong Agricultural University
- Key Laboratory of Horticultural Plant Biology
- Ministry of Education
- Wuhan
| | - J. Xia
- College of Horticulture & Forestry Sciences
- Huazhong Agricultural University
- Key Laboratory of Horticultural Plant Biology
- Ministry of Education
- Wuhan
| | - S. Zhuang
- College of Optical Electrical and Computer Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
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Sharma S, Prakash V, Mehta S. Graphene/silver nanocomposites-potential electron mediators for proliferation in electrochemical sensing and SERS activity. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2016.10.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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