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Liu Z, Ge D, Zhao C, Shi J, Zeng Z, Fang Z, Liu J, Zhang L. A porous silicon composite with irregular silver nano-dendritic particles: a rapid optical sensor for trace detection of malachite green in freshwater fish. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:608-614. [PMID: 38197306 DOI: 10.1039/d3ay02044d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
This study focused on creating a SERS composite particle specifically designed for detecting malachite green. We synthesized silver nano-dendritic structures on p-type porous silicon using an external electric field, separating them from the silicon wafer. Ultrasonic crushing yielded irregular silver nanodendrite-modified porous silicon composite particles. Upon being tested in an aqueous solution of malachite green, these composite particles demonstrated significant surface-enhanced Raman scattering effects. Our findings highlight the exceptional performance of the SERS substrate composed of porous silicon and irregular silver nano-dendritic particles. It exhibited high sensitivity, specificity, consistent signal strength, and reliability in detecting trace amounts of malachite green in water. Under ideal conditions, the substrate could detect malachite green at concentrations as low as 10-8 M. Moreover, its swift response to trace amounts of malachite green in fish underscores its potential as an effective Raman detector.
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Affiliation(s)
- Zhen Liu
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Xue Fu Street, Zhen Jiang, Jiangsu Province, China.
| | - Daohan Ge
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Xue Fu Street, Zhen Jiang, Jiangsu Province, China.
| | - Chengxiang Zhao
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Xue Fu Street, Zhen Jiang, Jiangsu Province, China.
| | - Jiakang Shi
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Xue Fu Street, Zhen Jiang, Jiangsu Province, China.
| | - Zhou Zeng
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Xue Fu Street, Zhen Jiang, Jiangsu Province, China.
| | - Zhiwei Fang
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Xue Fu Street, Zhen Jiang, Jiangsu Province, China.
| | - Jingcheng Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Li Hu Street, Wu Xi, Jiangsu Province, China
| | - Liqiang Zhang
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Xue Fu Street, Zhen Jiang, Jiangsu Province, China.
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2
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Wei Q, Pan C, Wang T, Pu H, Sun DW. A three-dimensional gold nanoparticles spherical liquid array for SERS sensitive detection of pesticide residues in apple. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 304:123357. [PMID: 37776705 DOI: 10.1016/j.saa.2023.123357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/10/2023] [Accepted: 09/04/2023] [Indexed: 10/02/2023]
Abstract
High-performance plasmonic substrates have recently attracted much research attention. Herein, a three-dimensional gold nanoparticles (AuNPs) spherical liquid array (SLA) with high "hot spots" and tunable nanometer gap by optimizing the proportion of AuNPs colloids over chloroform was synthesized based on a water-oil interfacial self-assembly strategy. The substrate demonstrated excellent surface-enhanced Raman scattering (SERS) performance using tetrathiafulvalene and rhodamine 6G (R6G) as probe molecules. With a simple extraction and soaking pretreatment process, the SLA exhibited high sensitivity for analysing triazophos on apple peels, with a limit of detection (LOD) of 0.005 µg/mL and recovery ranging from 96 to 110 %. Particularly, the chloroform produced an inherent characteristic peak at 665 cm-1, which was used as the internal standard to correct SERS signal fluctuation, leading to an improvement of the corresponding coefficient R2 from 0.97 to 0.99, thus improving the reproducibility. Therefore the SLA substrate possesses the potential for quantitative analysis of food contaminants.
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Affiliation(s)
- Qingyi Wei
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Chaoying Pan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Tengfei Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Hongbin Pu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Da-Wen Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Food Refrigeration and Computerized Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Belfield, Dublin 4, Ireland.
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3
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Gao F, Li F, Wang J, Yu H, Li X, Chen H, Wang J, Qin D, Li Y, Liu S, Zhang X, Wang ZH. SERS-Based Optical Nanobiosensors for the Detection of Alzheimer's Disease. BIOSENSORS 2023; 13:880. [PMID: 37754114 PMCID: PMC10526933 DOI: 10.3390/bios13090880] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/28/2023]
Abstract
Alzheimer's disease (AD) is a leading cause of dementia, impacting millions worldwide. However, its complex neuropathologic features and heterogeneous pathophysiology present significant challenges for diagnosis and treatment. To address the urgent need for early AD diagnosis, this review focuses on surface-enhanced Raman scattering (SERS)-based biosensors, leveraging the excellent optical properties of nanomaterials to enhance detection performance. These highly sensitive and noninvasive biosensors offer opportunities for biomarker-driven clinical diagnostics and precision medicine. The review highlights various types of SERS-based biosensors targeting AD biomarkers, discussing their potential applications and contributions to AD diagnosis. Specific details about nanomaterials and targeted AD biomarkers are provided. Furthermore, the future research directions and challenges for improving AD marker detection using SERS sensors are outlined.
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Affiliation(s)
- Feng Gao
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Fang Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jianhao Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Hang Yu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xiang Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Hongyu Chen
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jiabei Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Dongdong Qin
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yiyi Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Songyan Liu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xi Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Zhi-Hao Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; (F.G.); (F.L.); (J.W.); (H.Y.); (X.L.); (H.C.); (J.W.); (D.Q.); (Y.L.); (S.L.); (X.Z.)
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan 430060, China
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4
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Chang H, Zhang J. Detecting nanoparticles by "listening". FRONTIERS OF PHYSICS 2023; 18:53602. [PMID: 37192844 PMCID: PMC10163296 DOI: 10.1007/s11467-023-1287-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/24/2023] [Indexed: 05/18/2023]
Abstract
In the macroscopic world, we can obtain some important information through the vibration of objects, that is, listening to the sound. Likewise, we can also get some information of the nanoparticles that we want to know by the means of "listening" in the microscopic world. In this review, we will introduce two sensing methods (cavity optomechanical sensing and surface-enhanced Raman scattering sensing) which can be used to detect the nanoparticles. The cavity optomechanical systems are mainly used to detect sub-gigahertz nanoparticle or cavity vibrations, while surface-enhanced Raman scattering is a well-known technique to detect molecular vibrations whose frequency generally exceeds terahertz. Therefore, the vibrational information of nanoparticles from low-frequency to high-frequency could be obtained by these two methods. The size of the viruses is at the nanoscale and we can regard it as a kind of nanoparticles. Rapid and ultrasensitive detection of the viruses is the key strategies to break the spread of the viruses in the community. Cavity optomechanical sensing enables rapid, ultrasensitive detection of nanoparticles through the interaction of light and mechanical oscillators and surface-enhanced Raman scattering is an attractive qualitatively analytical technique for chemical sensing and biomedical applications, which has been used to detect the SARS-CoV-2 infected. Hence, investigation in these two fields is of vital importance in preventing the spread of the virus from affecting human's life and health.
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Affiliation(s)
- Haonan Chang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Jun Zhang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
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5
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Xie S, Si H, Liu C, Liu W, Shafi M, Jiang S, Yue W. LSP-SPP Coupling Structure Based on Three-Dimensional Patterned Sapphire Substrate for Surface Enhanced Raman Scattering Sensing. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091518. [PMID: 37177063 PMCID: PMC10180257 DOI: 10.3390/nano13091518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
Although the fabrication of controllable three-dimensional (3D) microstructures on substrates has been proposed as an effective solution for SERS, there remains a gap in the detection and manufacturability of 3D substrates with high performance. In this study, photolithography is adopted to obtain a pyramid-like array on a patterned sapphire substrate (PSS), with Al2O3 as the dielectric layer. In addition, silver nanoparticles (AgNPs) are used to decorate Au films to obtain mass-producible 3D SRES substrates. In the case of low fluorescence, the substrate realizes the coupling of localized surface plasmon polaritons (LSPs) and surface plasmon polaritons (SPPs), which is consistent with the simulation results obtained using the finite element method. The performance of the SERS substrate is evaluated using rhodamine 6G (R6G) and toluidine blue (TB) as probe molecules with detection limits of 10-11 M and 10-9 M, respectively. The substrate exhibits high hydrophobicity and excellent light-capturing capability. Moreover, it shows self-cleaning ability and long-term stability in practical applications. Allowing for the consistency of the composite substrate in the preparation process and the high reproducibility of the test results, it is considered to be promising for mass production.
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Affiliation(s)
- Shuqi Xie
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Haipeng Si
- Department of Orthopaedics, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Cong Liu
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Weihao Liu
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Muhammad Shafi
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Shouzhen Jiang
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
- Shandong Key Laboratory of Medical Physics and Image Processing & Shandong Provincial Engineering and Technical Center of Light Manipulations, Jinan 250014, China
| | - Weiwei Yue
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
- Shandong Key Laboratory of Medical Physics and Image Processing & Shandong Provincial Engineering and Technical Center of Light Manipulations, Jinan 250014, China
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Zhang M, Yang J, Yang L, Li Z. A robust SERS calibration using a pseudo-internal intensity reference. NANOSCALE 2023; 15:7403-7409. [PMID: 36970765 DOI: 10.1039/d2nr07161d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Surface-enhanced Raman scattering (SERS) with high molecular sensitivity and specificity is a powerful nondestructive analytical tool. Since its discovery, SERS measurements have suffered from the vulnerability of calibration curve, which makes quantification analysis a great challenge. In this work, we report a robust calibration method by introducing a referenced measurement as the intensity standard. This intensity reference not only has the advantages of the internal standard method such as reflecting the SERS substrate enhancement, but also avoids the introduction of competing adsorption between target molecules and the internal standard. Based on the normalized calibration curve, the magnitude of the R6G concentration can be well evaluated from 10-7 M to 10-12 M. Furthermore, we demonstrate that this pseudo-internal standard method can also work well using a different type of molecule as the reference. This SERS calibration method would be beneficial for the development of quantitative SERS analysis.
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Affiliation(s)
- Meng Zhang
- Beijing Key Laboratory of Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University, Beijing 100048, China.
| | - Jingran Yang
- Beijing Key Laboratory of Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University, Beijing 100048, China.
| | - Longkun Yang
- Beijing Key Laboratory of Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University, Beijing 100048, China.
| | - Zhipeng Li
- Beijing Key Laboratory of Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University, Beijing 100048, China.
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Liu L, Ma W, Wang X, Li S. Recent Progress of Surface-Enhanced Raman Spectroscopy for Bacteria Detection. BIOSENSORS 2023; 13:350. [PMID: 36979564 PMCID: PMC10046079 DOI: 10.3390/bios13030350] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 02/28/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
There are various pathogenic bacteria in the surrounding living environment, which not only pose a great threat to human health but also bring huge losses to economic development. Conventional methods for bacteria detection are usually time-consuming, complicated and labor-intensive, and cannot meet the growing demands for on-site and rapid analyses. Sensitive, rapid and effective methods for pathogenic bacteria detection are necessary for environmental monitoring, food safety and infectious bacteria diagnosis. Recently, benefiting from its advantages of rapidity and high sensitivity, surface-enhanced Raman spectroscopy (SERS) has attracted significant attention in the field of bacteria detection and identification as well as drug susceptibility testing. Here, we comprehensively reviewed the latest advances in SERS technology in the field of bacteria analysis. Firstly, the mechanism of SERS detection and the fabrication of the SERS substrate were briefly introduced. Secondly, the label-free SERS applied for the identification of bacteria species was summarized in detail. Thirdly, various SERS tags for the high-sensitivity detection of bacteria were also discussed. Moreover, we emphasized the application prospects of microfluidic SERS chips in antimicrobial susceptibility testing (AST). In the end, we gave an outlook on the future development and trends of SERS in point-of-care diagnoses of bacterial infections.
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Affiliation(s)
- Lulu Liu
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Wenrui Ma
- Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
- Key Disciplines Laboratory of Novel Micro-Nano Devices and System Technology, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
| | - Xiang Wang
- Department of Mechanical Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Shunbo Li
- Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
- Key Disciplines Laboratory of Novel Micro-Nano Devices and System Technology, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
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Liu W, Li Y, Li Z, Du X, Xie S, Liu C, Jiang S, Li Z. 3D flexible compositing resonant cavity system for high-performance SERS sensing. OPTICS EXPRESS 2023; 31:6925-6937. [PMID: 36823938 DOI: 10.1364/oe.481784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/12/2023] [Indexed: 06/18/2023]
Abstract
Arrayed resonant cavity with outstanding optical trapping ability have received increasing attention in surface-enhanced Raman spectroscopy (SERS). Here, a three-dimensional (3D) composite AgNPs-Al2O3/Au/inverted patterned sapphire substrate PMMA (IPSSPMMA) flexible resonant cavity system is theoretically and experimentally investigated as a flexible SERS sensor. With the help of an effective plasma coupling (localized surface plasmons (LSPs) and surface plasmon polaritons (SPPs)), as shown by the Finite Element Method, a resonant cavity between IPSSPMMA and a particle-film nanostructure is created. Moreover, the proposed fabrication scheme can be easily used for large-scale fabrication. To measure the performance of IPSSPMMA, Rhodamine 6 G (R6G) and Crystalline violet (CV) were used as probe molecules with limit of detection (LOD) of 6.01 × 10-12 M and 5.36 × 10-10 M, respectively, and enhancement factors (EF) of R6G up to 8.6 × 109. Besides, in-situ detection of CV on the surface of aquatic products with a LOD of 3.96 × 10-5 M, enables highly sensitive in-situ detection of surface analytes. The Raman performance and in-situ detection results demonstrate that the proposed flexible compositing resonant cavity system has the advantages of ultra-sensitivity, stability, uniformity, and reproducibility, and has great potential for applications in the food safety field.
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Bai S, Ma Y, Obata K, Sugioka K. Ultraminiaturized Microfluidic Electrochemical Surface‐Enhanced Raman Scattering Chip for Analysis of Neurotransmitters Fabricated by Ship‐in‐a‐Bottle Integration. SMALL SCIENCE 2023. [DOI: 10.1002/smsc.202200093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Shi Bai
- Advanced Laser Processing Research Team RIKEN Center for Advanced Photonics 2-1 Hirosawa, Wako Saitama 351-0198 Japan
- School of Material Science and Engineering Hebei University of Science and Technology Shijiazhuang 050018 China
| | - Ying Ma
- Academy of Artificial Intelligence Beijing Institute of Petrochemical Technology No.19 North Qingyuan Road, Daxing District Beijing 102617 China
| | - Kotaro Obata
- Advanced Laser Processing Research Team RIKEN Center for Advanced Photonics 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Koji Sugioka
- Advanced Laser Processing Research Team RIKEN Center for Advanced Photonics 2-1 Hirosawa, Wako Saitama 351-0198 Japan
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Wen P, Yang F, Hu X, Xu Y, Wan S, Chen L. Optimized Design and Preparation of Ag Nanoparticle Multilayer SERS Substrates with Excellent Sensing Performance. BIOSENSORS 2022; 13:52. [PMID: 36671886 PMCID: PMC9855442 DOI: 10.3390/bios13010052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/21/2022] [Accepted: 12/25/2022] [Indexed: 05/31/2023]
Abstract
Nanoparticle multilayer substrates usually exhibit excellent SERS activity due to multi-dimensional plasmon coupling. However, simply increasing the layers will lead to several problems, such as complex manufacturing procedures, reduced uniformity and poor reproducibility. In this paper, the local electric field (LEF) characteristics of a Ag nanoparticle (AgNP) multilayer were systematically studied through finite element simulations. We found that, on the glass support, the LEF intensity improved with the increase in the layers of AgNPs. However, the maximum LEF could be obtained with only two layers of AgNPs on the Au film support, and it was much stronger than the optimal value of the former. To verify the simulation results, we have successfully prepared one to four layers of AgNPs on both supports with a liquid-liquid interface self-assembly method, and carried out a series of SERS measurements. The experimental results were in good agreement with the simulations. Finally, the optimized SERS substrate, the 2-AgNP@Au film, showed an ultra-high SERS sensitivity, along with an excellent signal uniformity, which had a detection ability of 1 × 10-15 M for the Rhodamine 6G (R6G) and a relative standard deviation (RSD) of 11% for the signal intensity. Our study provides important theoretical guidance and a technical basis for the optimized design and application of high-performance SERS substrates.
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Affiliation(s)
- Ping Wen
- Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
- School of Intelligent Manufacturing, Sichuan University of Arts and Science, Dazhou 635000, China
| | - Feng Yang
- School of Artificial Intelligence, Chongqing Technology and Business University, Chongqing 400067, China
| | - Xiaoling Hu
- The Water Quality Monitoring Network of National Urban Water Supply Monitoring Station of Chongqing, Chongqing 400074, China
| | - Yi Xu
- Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
| | - Shu Wan
- Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
| | - Li Chen
- Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
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Wen P, Yang F, Tang L, Hu X, Zhao H, Tang B, Chen L. Precise regulation and control of hotspots in nanoparticle multilayer SERS substrates. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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12
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Su N, Dawuti W, Hu Y, Zhao H. Noninvasive cholangitis and cholangiocarcinoma screening based on serum Raman spectroscopy and support vector machine. Photodiagnosis Photodyn Ther 2022; 40:103156. [PMID: 36252780 DOI: 10.1016/j.pdpdt.2022.103156] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/17/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
Abstract
The feasibility of serum Raman spectroscopy for rapid screening of cholangitis and cholangiocarcinoma (CCA) was explored Raman spectra were collected from 49 patients with cholangitis, 38 patients with CCA, and 55 healthy volunteers. Normalized mean Raman spectra and spectral attributions reveal disease-specific biomolecular differences. Support vector machine (SVM) was used to establish the two-way (cholangitis vs healthy, CCA vs healthy etc.) and 3-way (cholangitis vs CCA vs healthy) classification model, and leave-one-out cross-validation (LOOCV) was used to verify these models' performance. Based on the support vector machine algorithm, serum Raman spectroscopy could identify cholangitis and CCA. Its diagnostic sensitivity, and specificity were 89.80%, 94.55%, and 89.50%, 98.18%, respectively. This study demonstrates that label-free serum Raman spectroscopy analysis technique combined with SVM diagnostic algorithm has great potential for noninvasive cholangitis and CCA screening.
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Affiliation(s)
- Na Su
- Department of Clinical Laboratory, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Wubulitalifu Dawuti
- School of Public Health, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yan Hu
- Science and Technology Talent Development, Center of Xinjiang Uygur Autonomous Region, Urumqi, China.
| | - Hui Zhao
- Department of Clinical Laboratory, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.
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13
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Xie L, Shen Y, Zhang M, Zhong Y, Lu Y, Yang L, Li Z. Single-model multi-tasks deep learning network for recognition and quantitation of surface-enhanced Raman spectroscopy. OPTICS EXPRESS 2022; 30:41580-41589. [PMID: 36366632 DOI: 10.1364/oe.472726] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Surface-enhanced Raman scattering (SERS) spectroscopy analysis has long been the central task of nanoscience and nanotechnology to realize the ultrasensitive recognition/quantitation applications. Recently, the blooming of artificial intelligence algorithms provides an edge tool to revolutionize the spectroscopy analysis, especially for multiple substances analysis and large-scale data handling. In this study, a single-model multi-tasks deep learning network is proposed to simultaneously achieve the qualitative recognition and quantitative analysis of SERS spectroscopy. The SERS spectra of two kinds of hypoglycemic drugs (PHE, ROS) and the corresponding mixtures are collected, respectively, with the concentration grade from 10-4 M to 10-8 M. Based on the SERS spectroscopy dataset, the loss functions and hyperparameters of the multi-tasks classifications model are optimized, and the recognition accuracies are tested by simulation experiments. It is demonstrated that the accuracy rates of qualitative and quantitative analysis can reach up to 99.0% and 98.4%, respectively. Moreover, the practical feasibility of this multi-tasks model is demonstrated by using it to achieve qualitative and quantitative analysis of PHE and ROS in complex serum matrix. Overall, this single-model multi-tasks deep learning network shows significant potential for the recognition and quantitation of SERS spectroscopy, which provides the algorithmic and experimental basis for large-scale and multiple substances SERS spectra analysis.
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14
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Liu G, Mu Z, Guo J, Shan K, Shang X, Yu J, Liang X. Surface-enhanced Raman scattering as a potential strategy for wearable flexible sensing and point-of-care testing non-invasive medical diagnosis. Front Chem 2022; 10:1060322. [PMID: 36405318 PMCID: PMC9669362 DOI: 10.3389/fchem.2022.1060322] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 10/24/2022] [Indexed: 09/01/2023] Open
Abstract
As a powerful and effective analytical tool, surface-enhanced Raman scattering (SERS) has attracted considerable research interest in the fields of wearable flexible sensing and non-invasive point-of-care testing (POCT) medical diagnosis. In this mini-review, we briefly summarize the design strategy, the development progress of wearable SERS sensors and its applications in this field. We present SERS substrate analysis of material design requirements for wearable sensors and highlight the benefits of novel plasmonic particle-in-cavity (PIC)-based nanostructures for flexible SERS sensors, as well as the unique interfacial adhesion effect and excellent mechanical properties of natural silk fibroin (SF) derived from natural cocoons, indicating promising futures for applications in the field of flexible electronic, optical, and electrical sensors. Additionally, SERS wearable sensors have shown great potential in the fields of different disease markers as well as in the diagnosis testing for COVID-19. Finally, the current challenges in this field are pointed out, as well as the promising prospects of combining SERS wearable sensors with other portable health monitoring systems for POCT medical diagnosis in the future.
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Affiliation(s)
- Guoran Liu
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Zhimei Mu
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Jing Guo
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Ke Shan
- Shandong Artificial Intelligence Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Xiaoyi Shang
- Shandong Artificial Intelligence Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Jing Yu
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, China
| | - Xiu Liang
- Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, China
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15
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Wang BX, Duan G, Xu W, Xu C, Jiang J, Yang Z, Wu Y, Pi F. Flexible surface-enhanced Raman scatting substrates: recent advances in their principles, design strategies, diversified material selections and applications. Crit Rev Food Sci Nutr 2022; 64:472-516. [PMID: 35930338 DOI: 10.1080/10408398.2022.2106547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Surface-enhanced Raman scattering (SERS) is widely used as a powerful analytical technology in cutting-edge areas such as food safety, biology, chemistry, and medical diagnosis, providing ultra-fast, ultra-sensitive, nondestructive characterization and achieving ultra-high detection sensitivity even down to the single-molecule level. Development of Raman spectroscopy is strongly dependent on high-performance SERS substrates, which have long evolved from the early days of rough metal electrodes to periodic nanopatterned arrays building on solid supporting substrates. For rigid SERS substrates, however, their applications are restricted by sophisticated pretreatments for detecting solid samples with non-planar surfaces. It is therefore essential to reassert the principles in constructing flexible SERS substrates. Herein, we comprehensively review the state-of-the-art in understanding, preparing and using flexible SERS. The basic mechanisms behind the flexible SERS are briefly outlined, typical design strategies are highlighted and diversified selection of materials in preparing flexible SERS substrates are reviewed. Then the recent achievements of various interdisciplinary applications based on flexible SERS substrates are summarized. Finally, the challenges and perspectives for future evolution of flexible SERS and their applications are demonstrated. We propose new research directions focused on stimulating the real potential of SERS as an advanced analytical technique for commercialization.
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Affiliation(s)
- Ben-Xin Wang
- School of Science, Jiangnan University, Wuxi, China
| | - Guiyuan Duan
- School of Science, Jiangnan University, Wuxi, China
| | - Wei Xu
- School of Science, Jiangnan University, Wuxi, China
| | - Chongyang Xu
- School of Science, Jiangnan University, Wuxi, China
| | | | | | - Yangkuan Wu
- School of Science, Jiangnan University, Wuxi, China
| | - Fuwei Pi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
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16
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Munir T, Imran M, Muzammil S, Ahad Hussain A, Fakhar-e Alam M, Mahmood A, Sohail A, Atif M, Shafeeq S, Afzal M. Antimicrobial activities of polyethylene glycol and citric acid coated graphene oxide-NPs synthesized via Hummer’s method. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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17
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Xu D, Su W, Lu H, Luo Y, Yi T, Wu J, Wu H, Yin C, Chen B. A gold nanoparticle doped flexible substrate for microplastics SERS detection. Phys Chem Chem Phys 2022; 24:12036-12042. [PMID: 35537128 DOI: 10.1039/d1cp05870c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to overuse of plastic products, decomposed microplastics (MPs) are widely spread in aquatic ecosystems, and will cause irreparable harm to the human body through the food chain. Traditional MP detection methods require cumbersome sample pre-processing procedures and complex instruments, so there is an urgent demand to develop methods to achieve simple on-site detection. Herein, a simple, sensitive, accurate, and stable MP detection method based on surface-enhanced Raman scattering (SERS) is investigated. Considering the hydrophobic problems of MPs, gold nanoparticle (AuNP) doped filter paper as a flexible SERS substrate is applied to capture MPs in the fiber pores. Benefitting from the electromagnetic (EM) hot spots generated by AuNPs, the Raman signal of MPs can be effectively enhanced. Meanwhile, the flexible SERS substrate has good sensitivity to a minimum detectable concentration of 0.1 g L-1 for polyethylene terephthalate (PET) in water, and the maximum enhancement factor (EF) can reach 360.5. Furthermore, the practicability of the developed method has been proved by the successful detection of MPs in tap water and pond water. This research provides an easy process, high sensitivity, and good reproducibility method for MP detection.
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Affiliation(s)
- Dewen Xu
- College of Science, Hohai University, Changzhou, 213022, China. .,Research Institute of Ocean and Offshore Engineering, Hohai University, Nantong, 226300, China
| | - Wei Su
- College of Science, Hohai University, Changzhou, 213022, China. .,Research Institute of Ocean and Offshore Engineering, Hohai University, Nantong, 226300, China
| | - Hanwen Lu
- College of Science, Hohai University, Changzhou, 213022, China. .,Research Institute of Ocean and Offshore Engineering, Hohai University, Nantong, 226300, China
| | - Yinlong Luo
- College of Science, Hohai University, Changzhou, 213022, China. .,Research Institute of Ocean and Offshore Engineering, Hohai University, Nantong, 226300, China
| | - Tianan Yi
- College of Science, Hohai University, Changzhou, 213022, China. .,Research Institute of Ocean and Offshore Engineering, Hohai University, Nantong, 226300, China
| | - Jian Wu
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China.
| | - Hong Wu
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China
| | - Cheng Yin
- College of Science, Hohai University, Changzhou, 213022, China.
| | - Bingyan Chen
- College of Science, Hohai University, Changzhou, 213022, China.
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18
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Li T, Shang D, Gao S, Wang B, Kong H, Yang G, Shu W, Xu P, Wei G. Two-Dimensional Material-Based Electrochemical Sensors/Biosensors for Food Safety and Biomolecular Detection. BIOSENSORS 2022; 12:bios12050314. [PMID: 35624615 PMCID: PMC9138342 DOI: 10.3390/bios12050314] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/04/2022] [Accepted: 05/07/2022] [Indexed: 05/28/2023]
Abstract
Two-dimensional materials (2DMs) exhibited great potential for applications in materials science, energy storage, environmental science, biomedicine, sensors/biosensors, and others due to their unique physical, chemical, and biological properties. In this review, we present recent advances in the fabrication of 2DM-based electrochemical sensors and biosensors for applications in food safety and biomolecular detection that are related to human health. For this aim, firstly, we introduced the bottom-up and top-down synthesis methods of various 2DMs, such as graphene, transition metal oxides, transition metal dichalcogenides, MXenes, and several other graphene-like materials, and then we demonstrated the structure and surface chemistry of these 2DMs, which play a crucial role in the functionalization of 2DMs and subsequent composition with other nanoscale building blocks such as nanoparticles, biomolecules, and polymers. Then, the 2DM-based electrochemical sensors/biosensors for the detection of nitrite, heavy metal ions, antibiotics, and pesticides in foods and drinks are introduced. Meanwhile, the 2DM-based sensors for the determination and monitoring of key small molecules that are related to diseases and human health are presented and commented on. We believe that this review will be helpful for promoting 2DMs to construct novel electronic sensors and nanodevices for food safety and health monitoring.
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Affiliation(s)
- Tao Li
- College of Textile & Clothing, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China;
| | - Dawei Shang
- Qingdao Product Quality Testing Research Institute, No. 173 Shenzhen Road, Qingdao 266101, China;
| | - Shouwu Gao
- State Key Laboratory, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (S.G.); (P.X.)
| | - Bo Wang
- Qingdao Institute of Textile Fiber Inspection, No. 173 Shenzhen Road, Qingdao 266101, China; (B.W.); (W.S.)
| | - Hao Kong
- College of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (H.K.); (G.Y.)
| | - Guozheng Yang
- College of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (H.K.); (G.Y.)
| | - Weidong Shu
- Qingdao Institute of Textile Fiber Inspection, No. 173 Shenzhen Road, Qingdao 266101, China; (B.W.); (W.S.)
| | - Peilong Xu
- State Key Laboratory, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (S.G.); (P.X.)
| | - Gang Wei
- College of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China; (H.K.); (G.Y.)
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19
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Lv Y, Wang K, Li D, Li P, Chen X, Han W. Rare Ag nanoparticles loading induced surface-enhanced pollutant adsorption and photocatalytic degradation on Ti3C2Tx MXene-based nanosheets. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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20
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Yue W, Liu C, Zha Z, Liu R, Gao J, Shafi M, Feng J, Jiang S. Composite substrate of graphene/Ag nanoparticles coupled with a multilayer film for surface-enhanced Raman scattering biosensing. OPTICS EXPRESS 2022; 30:13226-13237. [PMID: 35472940 DOI: 10.1364/oe.454893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/23/2022] [Indexed: 05/21/2023]
Abstract
In this paper, we designed a surface-enhanced Raman scattering (SERS) substrate for graphene/Ag nanoparticles (Ag NPs) bonded multilayer film (MLF) using the hybrid nanostructures composed of graphene and plasmonic metal components with significant plasmonic electrical effects and unique optical characteristics. This paper achieved the advantages of efficient utilization of electromagnetic field and reduction of fluorescence background based on the electromagnetic enhancement activity of Ag NPs and unique physical/chemical properties of graphene with zero gap structures. Au/Al2O3 was stacked periodically to construct MLF. As indicated by the electric field intensity at the Au/Al2O3 interface of the respective layer, bulk plasmon polariton (BPP) in the MLF was excited and coupled with localized surface plasmon (LSP) in the Ag NPs, which enhanced the electromagnetic field on the top-layer of SERS substrate. To measure the performance of the SERS substrate, rhodamine 6G (R6G) and malachite green (MG) were used as the probe molecules, with the detection limits of 10-11 M and 10-8 M, respectively. The SERS substrate had high sensitivity and uniformity, which indicated that it has a broad application prospect in the field of molecular detection.
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21
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Graphene Oxide-Coated Metal–Insulator–Metal SERS Substrates for Trace Melamine Detection. NANOMATERIALS 2022; 12:nano12071202. [PMID: 35407320 PMCID: PMC9002873 DOI: 10.3390/nano12071202] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/27/2022] [Accepted: 03/31/2022] [Indexed: 02/01/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) has long been an ultrasensitive technique for trace molecule detection. However, the development of a sensitive, stable, and reproducible SERS substrate is still a challenge for practical applications. Here, we demonstrate a cost-effective, centimeter-sized, and highly reproducible SERS substrate using the nanosphere lithography technique. It consists of a hexagonally packed Ag metasurface on a SiO2/Au/Si substrate. A seconds-lasting etching process of a self-assembled nanosphere mask manipulates the geometry of the deposited Ag metasurface on the SiO2/Au/Si substrate, which attains the wavelength matching between the optical absorbance of the Ag/SiO2/Au/Si substrate and the excitation laser wavelength as well as the enhancement of Raman signals. By spin-coating a thin layer of graphene oxide on the substrate, a SERS performance with 1.1 × 105 analytical enhancement factor and a limit of detection of 10−9 M for melamine is achieved. Experimental results reveal that our proposed strategy could provide a promising platform for SERS-based rapid trace detection in food safety control and environmental monitoring.
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22
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Feng J, Gao J, Yang W, Liu R, Shafi M, Zha Z, Liu C, Xu S, Ning T, Jiang S. LSPR optical fiber sensor based on 3D gold nanoparticles with monolayer graphene as a spacer. OPTICS EXPRESS 2022; 30:10187-10198. [PMID: 35299428 DOI: 10.1364/oe.453806] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
Localized surface plasmon resonance (LSPR) optical fiber biosensing is an advanced and powerful label-free technique which gets great attention for its high sensitivity to refractive index change in surroundings. However, the pursuit of a higher sensitivity is still challenging and should be further investigated. In this paper, based on a monolayer graphene/gold nanoparticles (Grm/Au NPs) three-dimensional (3D) hybrid structure, we fabricated a D-shaped plastic optical fiber (D-POF) LSPR sensor using a facile two-step method. The coupling enhancement of the resonance of this multilayer structure was extremely excited by the surface plasmon property of the stacked Au NPs/Grm layer. We found that the number of plasmonic structure layers was of high importance to the performance of the sensor. Moreover, the optimal electromagnetic field enhancement effect was found in three-layer plasmonic structure. Besides, the n*(Grm/Au NPs)/D-POF sensor exhibited outstanding performance in sensitivity (2160 nm/RIU), linearity (linear fitting coefficient R2 = 0.996) and reproducibility. Moreover, the sensor successfully detected the concentration of glucose, achieving a sensitivity of 1317.61 nm/RIU, which suggested a promising prospect for the application in medicine and biotechnology.
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23
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Zhang Y, Xue C, Li P, Cui S, Cui D, Jin H. Metal-organic framework engineered corn-like SERS active Ag@Carbon with controllable spacing distance for tracking trace amount of organic compounds. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127686. [PMID: 34775316 DOI: 10.1016/j.jhazmat.2021.127686] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/12/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
Probing water-soluble organic compounds via Surface-enhanced Raman scattering (SERS) technique could be helpful to prevent harmful impacts of polluted water. A key limitation of restraining SERS technique in probing these pollutants is the difficulty to control the spacing distance of plasmonic nanoparticles within 10 nm so that SERS effect can be efficiently induced. Herein, a strategy of mass-producing Ag-based SERS active material with tunable spacing distance is reported. In brevity, metal-organic framework (MOF) engineered corn-like Ag@Carbon is synthesized by simply thermal treating Ag-MOF. The thermal treatment in-situ turns Ag+ into Ag nanoparticles (NPs), resulting in Ag NPs well-dispersed on the surface of the carbonized MOF and forming ordered SERS hotspots. Due to the spatial distance of Ag+ directly depends on the molecular diameter of MOF organic ligands, spacing distance of Ag NP is fixed at around 7 nm. Theoretical analysis and experimental study confirm that the uniformly distributed Ag NPs lead to desirable SERS activity. Further study evidences the presented corn-like Ag@Carbon could be a good candidate for tacking organic compounds with satisfactory sensitivity, specificity and low detection limit (10-8 M). Conclusively, these impressive results indicate a bright future of adopting the proposed strategy to design future SERS active materials.
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Affiliation(s)
- Yuna Zhang
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
| | - Cuili Xue
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
| | - Peng Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shengsheng Cui
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China.
| | - Daxiang Cui
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China; National Engineering Research Center for Nanotechnology, Shanghai 200241, PR China.
| | - Han Jin
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China; National Engineering Research Center for Nanotechnology, Shanghai 200241, PR China.
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24
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Xu Q, Zong B, Li Q, Fang X, Mao S, Ostrikov KK. H 2S sensing under various humidity conditions with Ag nanoparticle functionalized Ti 3C 2T x MXene field-effect transistors. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127492. [PMID: 34678565 DOI: 10.1016/j.jhazmat.2021.127492] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/07/2021] [Accepted: 10/09/2021] [Indexed: 05/27/2023]
Abstract
Despite the critical need to monitor H2S, a hazardous gas, in environmental and medical settings, there are currently no reliable methods for rapid and sufficiently discriminative H2S detection in real-world humid environments. Herein, targeted hybridizing of Ti3C2Tx MXene with Ag nanoparticles on a field-effect transistor (FET) platform has led to a step change in MXene sensing performance down to ppb levels, and enabled the very high selectivity and fast response/recovery time under room temperature for H2S detection in humid conditions. For the first time, we present a novel relative humidity (RH) self-calibration strategy for the accurate detection of H2S. This strategy can eliminate the influence of humidity and enables the accurate quantitative detection of gas in the total RH range. We further elucidate that the superior H2S sensing performance is attributed to the electron and chemical sensitization effects. This study opens new avenues for the development of high-performance MXene-based sensors and offers a viable approach for addressing real-world humidity effect for gas sensors generally.
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Affiliation(s)
- Qikun Xu
- College of Environmental Science and Engineering, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Boyang Zong
- College of Environmental Science and Engineering, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Qiuju Li
- College of Environmental Science and Engineering, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Xian Fang
- College of Environmental Science and Engineering, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Shun Mao
- College of Environmental Science and Engineering, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai 200092, China.
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and QUT Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
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25
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Hierarchically Assembled Plasmonic Metal-Dielectric-Metal Hybrid Nano-Architectures for High-Sensitivity SERS Detection. NANOMATERIALS 2022; 12:nano12030401. [PMID: 35159747 PMCID: PMC8838151 DOI: 10.3390/nano12030401] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 02/05/2023]
Abstract
In this work, we designed and prepared a hierarchically assembled 3D plasmonic metal-dielectric-metal (PMDM) hybrid nano-architecture for high-performance surface-enhanced Raman scattering (SERS) sensing. The fabrication of the PMDM hybrid nanostructure was achieved by the thermal evaporation of Au film followed by thermal dewetting and the atomic layer deposition (ALD) of the Al2O3 dielectric layer, which is crucial for creating numerous nanogaps between the core Au and the out-layered Au nanoparticles (NPs). The PMDM hybrid nanostructures exhibited strong SERS signals originating from highly enhanced electromagnetic (EM) hot spots at the 3 nm Al2O3 layer serving as the nanogap spacer, as confirmed by the finite-difference time-domain (FDTD) simulation. The PMDM SERS substrate achieved an outstanding SERS performance, including a high sensitivity (enhancement factor, EF of 1.3 × 108 and low detection limit 10-11 M) and excellent reproducibility (relative standard deviation (RSD) < 7.5%) for rhodamine 6G (R6G). This study opens a promising route for constructing multilayered plasmonic structures with abundant EM hotspots for the highly sensitive, rapid, and reproducible detection of biomolecules.
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26
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Shang Q, Tan X, Chen M, Han S, Yu T. Controllable synthesis of the homogeneous 3D Ag nanoflowers on FTO substrate for ultra-sensitive SERS detection. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2021.139165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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27
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Hu W, Xia L, Hu Y, Li G. Recent progress on three-dimensional substrates for surface-enhanced Raman spectroscopic analysis. Microchem J 2022. [DOI: 10.1016/j.microc.2021.106908] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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28
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3D hotspot matrix of Au nanoparticles on Au island film with a spacer layer of dithiol molecules for highly sensitive surface-enhanced Raman spectroscopy. Sci Rep 2021; 11:22399. [PMID: 34789757 PMCID: PMC8599516 DOI: 10.1038/s41598-021-01742-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/01/2021] [Indexed: 11/09/2022] Open
Abstract
Engineering of efficient plasmonic hotspots has been receiving great attention to enhance the sensitivity of surface-enhanced Raman scattering (SERS). In the present study, we propose a highly sensitive SERS platform based on Au nanoparticles (AuNPs) on Au island film (AuIF) with a spacer layer of 1,4-benzenedimethanethiol (BDMT). The three-dimensional (3D) hotspot matrix has been rationally designed based on the idea of employing 3D hotspots with a vertical nanogap between AuIF and AuNPs after generating large area two-dimensional hotspots of AuIF. AuNPs@BDMT@AuIF are fabricated by functionalizing BDMT on AuIF and then immobilizing AuNPs. The SERS performance is investigated with Rhodamine 6G as a probe molecule and the determined enhancement factor is 1.3 × 105. The AuNPs@BDMT@AuIF are then employed to detect thiram, which is used as a fungicide, with a detection limit of 13 nM. Our proposed platform thus shows significant potential for use in highly sensitive SERS sensors.
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Zhang C, Ji C, Yu J, Li Z, Li Z, Li C, Xu S, Li W, Man B, Zhao X. MoS 2-based multiple surface plasmonic coupling for enhanced surface-enhanced Raman scattering and photoelectrocatalytic performance utilizing the size effect. OPTICS EXPRESS 2021; 29:38768-38780. [PMID: 34808922 DOI: 10.1364/oe.441176] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
MoS2-based heterostructures have received increasing attention for not only surface-enhanced Raman scattering (SERS) but also for enhanced photoelectrocatalytic (PEC) performance. This study presents a hydrothermal method for preparing vertical MoS2 nanosheets composed of in situ grown AuNPs with small size and chemically reduced AgNPs with large size to achieve the synergistic enhancement of SERS and PEC properties owing to the size effect of the plasmonic structure. Compared with pristine MoS2 nanosheets and unitary AuNPs or AgNPs composited with MoS2 nanosheets, the ternary heterostructure exhibited the strongest electromagnetic field and surface plasmon coupling, which was confirmed by finite-difference time-domain (FDTD) simulation and absorption spectra. In addition, the experimental results confirmed the outstanding SERS enhancement with an EF of 1.1×109, and the most efficient hydrogen evolution reaction (HER) activity with a sensitive photocurrent response, attributing to the multiple surface plasmonic coupling effects of the Au-Ag bimetal and efficient charge-transfer process between MoS2 and the bimetal. That is, it provides a robust method for developing multi-size bimetal-semiconductor complex nanocomposites for high-performance SERS sensors and PEC applications.
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Lu W, Liu L, Zhu T, Li Z, Shao M, Zhang C, Yu J, Zhao X, Yang C, Li Z. MoS 2/graphene van der Waals heterojunctions combined with two-layered Au NP for SERS and catalysis analyse. OPTICS EXPRESS 2021; 29:38053-38067. [PMID: 34808865 DOI: 10.1364/oe.443835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
MoS2-plasmonic hybrid platforms have attracted significant interest in surface-enhanced Raman scattering (SERS) and plasmon-driven photocatalysis. However, direct contact between the metal and MoS2 creates strain that deteriorates the electron transport across the metal/ MoS2 interfaces, which would affect the SERS effect and the catalytic performance. Here, the MoS2/graphene van der Waals heterojunctions (vdWHs) were fabricated and combined with two-layered gold nanoparticles (Au NP) for SERS and plasmon-driven photocatalysis analyse. The graphene film is introduced to provide an effective buffer layer between Au NP and MoS2, which not only eliminates the inhomogeneous contact on MoS2 but also benefits the electron transfer. The substrate exhibits excellent SERS capability realizing ultra-sensitive detection for 4-pyridinethiol molecules. Also, the surface catalytic reaction of p-nitrothiophenol (PNTP) to p,p-dimercaptobenzene (DMAB) conversion was in situ monitored, demonstrating that the vdWHs-plasmonic hybrid could effectively accelerate reaction process. The mechanism of the SERS and catalytic behaviors are investigated via experiments combined with theoretical simulations (finite element method and quantum chemical calculations).
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Zhang Z, Li Z, Wang L, Li J, Pan J, Wang S, Zhang C, Li Z, Peng Q, Xiu X. Preparation and surface-enhanced Raman scattering properties of GO/Ag/Ta 2O 5 composite substrates. OPTICS EXPRESS 2021; 29:34552-34564. [PMID: 34809242 DOI: 10.1364/oe.435662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
The composite substrate composed of precious metal, semiconductor and graphene has not only high sensitivity and uniform Raman signal but also stable chemical properties, which is one of the important topics in the field of surface-enhanced Raman scattering (SERS). In this paper, a sandwich SERS substrate based on tantalum oxide (Ta2O5) is designed and fabricated. The substrate has high sensitivity, stable performance and high quantification capability. The composite substrate can achieve a high sensitivity Raman detection of crystal violet (CV) with a detection limit of 10-11 M and an enhancement factor of 1.5 × 109. This is the result of the synergistic effect of electromagnetic enhancement and chemical enhancement, in which the chemical enhancement is the cooperative charge transfer in the system composed of probe molecules, silver nanoparticles (AgNPs) and Ta2O5, and the electromagnetic enhancement comes from the strong local surface plasmon resonance between the adjacent AgNPs. After exposing the composite substrate to the air for one month, the Raman signal did not weaken, indicating that the performance of the composite substrate is stable. In addition, there is an excellent linear relationship between the intensity of Raman characteristic peak and the concentration of probe molecules, which proves that the composite substrate has high quantification capability. In practical application, the composite SERS substrate can be used to detect harmful malachite green quickly and sensitively and has a broad application prospect in the field of food safety and chemical analysis.
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Liu C, Lei F, Wei Y, Li Z, Zhang C, Peng Q, Man B, Yu J. Preparation of a superhydrophobic AgNP/GF substrate and its SERS application in a complex detection environment. OPTICS EXPRESS 2021; 29:34085-34096. [PMID: 34809206 DOI: 10.1364/oe.441606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is widely considered to be a fingerprint spectrum that can realize molecular identification, and it continues to receive a lot of attention due to its high sensitivity and powerful qualitative analysis capabilities. In recent years, there has been a lot of work and reports on super-sensitive SERS substrates, but often the enhanced ability of the substrate is also effective for impurities and irrelevant molecules. Therefore, a problem that still remains to be solved is how to perform effective trace detection of specific substances in a complex detection environment. Herein, a superhydrophobic Ag nanoparticle/glass microfibre filter (AgNP/GF) substrate was designed to realize the Raman detection of complex multiphase solutions. The hydrophobic three-dimensional net-like structure provides efficient Raman enhancement, making the substrate have extremely high detection limits for dye molecules and even achieving specific detection of the hexane phase component (thiram molecule) in a multiphase solution.
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Lee KH, Jang H, Kim YS, Lee C, Cho SH, Kim M, Son H, Bae KB, Dao DV, Jung YS, Lee I. Synergistic SERS Enhancement in GaN-Ag Hybrid System toward Label-Free and Multiplexed Detection of Antibiotics in Aqueous Solutions. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100640. [PMID: 34363354 PMCID: PMC8498916 DOI: 10.1002/advs.202100640] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 06/01/2021] [Indexed: 05/27/2023]
Abstract
Noble metal-based surface-enhanced Raman spectroscopy (SERS) has enabled the simple and efficient detection of trace-amount molecules via significant electromagnetic enhancements at hot spots. However, the small Raman cross-section of various analytes forces the use of a Raman reporter for specific surface functionalization, which is time-consuming and limited to low-molecular-weight analytes. To tackle these issues, a hybrid SERS substrate utilizing Ag as plasmonic structures and GaN as charge transfer enhancement centers is presented. By the conformal printing of Ag nanowires onto GaN nanopillars, a highly sensitive SERS substrate with excellent uniformity can be fabricated. As a result, remarkable SERS performance with a substrate enhancement factor of 1.4 × 1011 at 10 fM for rhodamine 6G molecules with minimal spot variations can be realized. Furthermore, quantification and multiplexing capabilities without surface treatments are demonstrated by detecting harmful antibiotics in aqueous solutions. This work paves the way for the development of a highly sensitive SERS substrate by constructing complex metal-semiconductor architectures.
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Affiliation(s)
- Kang Hyun Lee
- Department of Semiconductor Systems EngineeringKorea University145 Anam‐ro, Seongbuk‐guSeoul02841Republic of Korea
| | - Hanhwi Jang
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Yoon Seok Kim
- KU‐KIST Graduate School of Converging Science and TechnologyKorea University145 Anam‐ro, Seongbuk‐guSeoul02841Republic of Korea
| | - Chul‐Ho Lee
- KU‐KIST Graduate School of Converging Science and TechnologyKorea University145 Anam‐ro, Seongbuk‐guSeoul02841Republic of Korea
- Department of Integrative Energy EngineeringKorea University145 Anam‐ro, Seongbuk‐guSeoul02841Republic of Korea
| | - Seunghee H. Cho
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Minjoon Kim
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Hoki Son
- Department of Materials Science and EngineeringKorea University145 Anam‐ro, Seongbuk‐guSeoul02841Republic of Korea
| | - Kang Bin Bae
- Department of Materials Science and EngineeringKorea University145 Anam‐ro, Seongbuk‐guSeoul02841Republic of Korea
| | - Dung Van Dao
- Department of Materials Science and EngineeringKorea University145 Anam‐ro, Seongbuk‐guSeoul02841Republic of Korea
| | - Yeon Sik Jung
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - In‐Hwan Lee
- Department of Semiconductor Systems EngineeringKorea University145 Anam‐ro, Seongbuk‐guSeoul02841Republic of Korea
- Department of Materials Science and EngineeringKorea University145 Anam‐ro, Seongbuk‐guSeoul02841Republic of Korea
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Shao M, Zhang C, Yu J, Jiang S, Zhao X, Li Z, Lu W, Man B, Li Z. Noble metal modified ReS 2 nanocavity for surface-enhanced Raman spectroscopy (SERS) analysis. OPTICS EXPRESS 2021; 29:28664-28679. [PMID: 34614992 DOI: 10.1364/oe.435627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/12/2021] [Indexed: 06/13/2023]
Abstract
The rhenium disulphide (ReS2) nanocavity-based surface enhanced Raman scattering (SERS) substrates ware fabricated on the gold-modified silicon pyramid (PSi) by thermal evaporation technology and hydrothermal method. In this work, the ReS2 nanocavity was firstly combined with metal nanostructures in order to improve the SERS properties of ReS2 materials, and the SERS response of the composite structure exhibits excellent performance in sensitivity, uniformity and repeatability. Numerical simulation reveals the synergistic effect of the ReS2 nanocavity and the plasmon resonance generated by the metal nanostructures. And the charge transfer between the metal, ReS2 and the analytes was also verified and plays an non-ignorable role. Besides, the plasmon-driven reaction for p-nitrothiophenol (PNTP) to p,p'-dimercaptobenzene (DMAB) conversion was successfully in-situ monitored. Most importantly, it is found for the first time that the SERS properties of ReS2 nanocavity-based substrates are strongly temperature dependent, and the SERS effect achieves the best performance at 45 °C. In addition, the low concentration detection of malachite green (MG) and crystal violet (CV) molecules in lake water shows its development potential in practical application.
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A Ocsoy M, Yusufbeyoglu S, Ildiz N, Ulgen A, Ocsoy I. DNA Aptamer-Conjugated Magnetic Graphene Oxide for Pathogenic Bacteria Aggregation: Selective and Enhanced Photothermal Therapy for Effective and Rapid Killing. ACS OMEGA 2021; 6:20637-20643. [PMID: 34396009 PMCID: PMC8359158 DOI: 10.1021/acsomega.1c02832] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/19/2021] [Indexed: 05/19/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA), often called "superbug", is a nosocomial and multidrug resistance bacterium that shows resistance to β-lactam antibiotics. There has been high demand to develop an alternative treatment model to antibiotics for efficiently fighting MRSA. Herein, we developed DNA aptamer-conjugated magnetic graphene oxide (Apt@MGO) as a multifunctional and biocompatible nanoplatform for selective and rapid eradication of MRSA and evaluated heat generation and cell death performance of Apt@MGO for the first time under dispersed and aggregated states. The aptamer sequence was specifically selected for MRSA and acted as a molecular targeting probe for selective MRSA recognition and antibiotic-free therapy. Magnetic graphene oxide (MGO) serves as a nanoplatform for aptamer conjugation and as a photothermal agent by converting near-infrared (NIR) light to heat. Iron oxide nanoparticles (Fe3O4 NPs) are formed on GO to prepare MGO, which shows magnetic properties for collecting MRSA cells in a certain area in the reaction tube by an external magnet. The collected MGO induces remarkably high local heating and eventual MRSA cell death under NIR laser irradiation. We demonstrate that Apt@MGO resulted in ∼78% MRSA and over >97% MRSA cell inactivation in dispersed and aggregated states, respectively, under 200 seconds (sn) exposure of NIR irradiation (808 nm, 1.1 W cm-2). An in vitro study highlights that Apt@MGO is considered a targeted, biocompatible, and light-activated photothermal agent for efficient and rapid killing of MRSA in the aggregated state under NIR light.
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Affiliation(s)
- Muserref A Ocsoy
- Department
of Physics, Faculty of Science, Erciyes
University, 38039 Kayseri, Turkey
| | - Sadi Yusufbeyoglu
- Department
of Analytical Chemistry, Faculty of Pharmacy, Erciyes University, 38039 Kayseri, Turkey
- Department
of Pharmacognosy, Faculty of Gülhane Pharmacy, University of Health Sciences, 06010 Ankara, Turkey
| | - Nilay Ildiz
- Department
of Pharmaceutical Microbiology, Faculty of Pharmacy, Erciyes University, 38039 Kayseri, Turkey
| | - Ahmet Ulgen
- Department
of Chemistry, Faculty of Science, Erciyes
University, 38039 Kayseri, Turkey
| | - Ismail Ocsoy
- Department
of Analytical Chemistry, Faculty of Pharmacy, Erciyes University, 38039 Kayseri, Turkey
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Liu C, Li J, Lei F, Wei Y, Li Z, Zhang C, Peng Q, Yu J, Man B. SERS substrate with wettability difference for molecular self-concentrating detection. NANOTECHNOLOGY 2021; 32:375603. [PMID: 34049298 DOI: 10.1088/1361-6528/ac0665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/28/2021] [Indexed: 06/12/2023]
Abstract
The surface-enhanced Raman spectroscopy (SERS) has attracted much attention due to the powerful capability of quantificational analysis. Nowadays, most of the enhancement effect by SERS substrate is provided by the 'hot spots' occupying relatively small space. When the amount of analyte is too low, it is difficult to ensure that all the probe molecules can be placed into the 'hot spots', which is a headache in SERS quatification. In order to solve this problem, we have developed a structure of CuO nanowires/Ag nanoparticles with wettability capacity difference, which can aggregate molecules in water and oil simultaneously under two different mechanisms. The limit of detection and enhancement factor of this structure are estimated as 10-15M and 1.55 × 1011respectively (for rhodamine 6G, R6G). In a proof-in-principle experiment of sewage detection, it successfully achieved the aggregation and additional enhancement of both the R6G molecules in aqueous solution and thiuram molecules in toluene, realizing efficient and accurate Raman detection.
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Affiliation(s)
- Chundong Liu
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Jia Li
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Fengcai Lei
- College of Chemistry, Chemical Engineering and Materials Science, Institute of Biomedical Sciences, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Yisheng Wei
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Zhen Li
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Chao Zhang
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Qianqian Peng
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Jing Yu
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Baoyuan Man
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
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Fan X, Zhang H, Zhao X, Lv K, Zhu T, Xia Y, Yang C, Bai C. Three-dimensional SERS sensor based on the sandwiched G@AgNPs@G/PDMS film. Talanta 2021; 233:122481. [PMID: 34215109 DOI: 10.1016/j.talanta.2021.122481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 11/28/2022]
Abstract
Three-dimensional (3D) SERS substrate with the denser "hotspots" is synthesized by the constriction of PDMS film decorated with sandwiched graphene@AgNPs@graphene (G@AgNPs@G) nanostructure. Graphene layers above and below the AgNPs are used to absorb molecules onto the "hotspots", and prevent the oxidation of AgNPs in our design. PDMS films can be easily shrunk for 3D structures, causing advantages in enhancement ability and light-matter interaction. Benefiting from the above advantages, a detection limit of 10-14 M (CV) and enhancement factor (EF) of 3.9 × 109 were obtained in our experiment. Theoretical analyses (FDTD) were also used to study the enhancement mechanism. For practical purposes, in-situ detection of MG molecules on the fish surface and the label-free detection of DNA base of adenine (A) and cytosine (C) were also studied. The high enhancement factor, great sensitivity, reliability, and stability of substrate reasonably proved that it can be used as an excellent SERS substrate for biomolecular detection.
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Affiliation(s)
- Xiangyu Fan
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Hao Zhang
- Beijing Key Laboratory for Nano-Photonics and Nano-Structure (NPNS) Center for Condensed Matter Physics Department of Physics, Capital Normal University, Beijing, 100048, China
| | - XinRu Zhao
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Ke Lv
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Tiying Zhu
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Yaping Xia
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Cheng Yang
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China.
| | - Chengjie Bai
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China.
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Zha Z, Liu R, Yang W, Li C, Gao J, Shafi M, Fan X, Li Z, Du X, Jiang S. Surface-enhanced Raman scattering by the composite structure of Ag NP-multilayer Au films separated by Al 2O 3. OPTICS EXPRESS 2021; 29:8890-8901. [PMID: 33820330 DOI: 10.1364/oe.419133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 02/28/2021] [Indexed: 06/12/2023]
Abstract
In the present study, a nanoparticle-multilayer metal film substrate was presented with silver nanoparticles (Ag NPs) assembled on a multilayer gold (Au) film by employing alumina (Al2O3) as a spacer. The SERS performance of the proposed structures was determined. It was suggested that the SERS effect was improved with the increase in the number of layers, which was saturated at four layers. The SERS performance of the structures resulted from the mutual coupling of multiple plasmon modes [localized surface plasmons (LSPs), surface plasmon polaritons (SPPs), as well as bulk plasmon polaritons (BPPs)] generated by the Ag NP-multilayer Au film structure. Furthermore, the electric field distribution of the hybrid system was studied with COMSOL Multiphysics software, which changed in almost consistency with the experimentally achieved results. For this substrate, the limit of detection (LOD) was down to 10-13 M for the rhodamine 6G (R6G), and the proposed SERS substrate was exhibited prominently quantitatively detected capability and high reproducibility. Moreover, a highly sensitive detection was conducted on toluidine blue (TB) molecules. As revealed from the present study, the Ag NP-multilayer Au film structure can act as a dependable SERS substrate for its sensitive molecular sensing applications in the medical field.
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Wang Z, Huo Y, Ning T, Liu R, Zha Z, Shafi M, Li C, Li S, Xing K, Zhang R, Xu S, Li Z, Jiang S. Composite Structure Based on Gold-Nanoparticle Layer and HMM for Surface-Enhanced Raman Spectroscopy Analysis. NANOMATERIALS 2021; 11:nano11030587. [PMID: 33652800 PMCID: PMC7996856 DOI: 10.3390/nano11030587] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/20/2021] [Accepted: 02/23/2021] [Indexed: 11/27/2022]
Abstract
Hyperbolic metamaterials (HMMs), supporting surface plasmon polaritons (SPPs), and highly confined bulk plasmon polaritons (BPPs) possess promising potential for application as surface-enhanced Raman scattering (SERS) substrates. In the present study, a composite SERS substrate based on a multilayer HMM and gold-nanoparticle (Au-NP) layer was fabricated. A strong electromagnetic field was generated at the nanogaps of the Au NPs under the coupling between localized surface plasmon resonance (LSPR) and a BPP. Additionally, a simulation of the composite structure was assessed using COMSOL; the results complied with those achieved through experiments: the SERS performance was enhanced, while the enhancing rate was downregulated, with the extension of the HMM periods. Furthermore, this structure exhibited high detection performance. During the experiments, rhodamine 6G (R6G) and malachite green (MG) acted as the probe molecules, and the limits of detection of the SERS substrate reached 10−10 and 10−8 M for R6G and MG, respectively. Moreover, the composite structure demonstrated prominent reproducibility and stability. The mentioned promising results reveal that the composite structure could have extensive applications, such as in biosensors and food safety inspection.
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Affiliation(s)
- Zirui Wang
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
| | - Yanyan Huo
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
- Shandong Key Laboratory of Medical Physics and Image Processing & Shandong Provincial Engineering and Technical Center of Light Manipulations, Jinan 250014, China
| | - Tingyin Ning
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
- Shandong Key Laboratory of Medical Physics and Image Processing & Shandong Provincial Engineering and Technical Center of Light Manipulations, Jinan 250014, China
| | - Runcheng Liu
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
| | - Zhipeng Zha
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
| | - Muhammad Shafi
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
| | - Can Li
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
| | - Shuanglu Li
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
| | - Kunyu Xing
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
| | - Ran Zhang
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
| | - Shicai Xu
- Shandong Key Laboratory of Biophysics, College of Physics and Electronic Information, Institute of Biophysics, Dezhou University, Dezhou 253023, China;
| | - Zhen Li
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
- Correspondence: (Z.L.); (S.J.)
| | - Shouzhen Jiang
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Z.W.); (Y.H.); (T.N.); (R.L.); (Z.Z.); (M.S.); (C.L.); (S.L.); (K.X.); (R.Z.)
- Shandong Key Laboratory of Medical Physics and Image Processing & Shandong Provincial Engineering and Technical Center of Light Manipulations, Jinan 250014, China
- Correspondence: (Z.L.); (S.J.)
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Yang L, Ren Z, Zhang M, Song Y, Li P, Qiu Y, Deng P, Li Z. Three-dimensional porous SERS powder for sensitive liquid and gas detections fabricated by engineering dense "hot spots" on silica aerogel. NANOSCALE ADVANCES 2021; 3:1012-1018. [PMID: 36133286 PMCID: PMC9418486 DOI: 10.1039/d0na00849d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 11/30/2020] [Indexed: 06/16/2023]
Abstract
A three-dimensional porous SERS powder material, Ag nanoparticles-engineered-silica aerogel, was developed. Utilizing an in situ chemical reduction strategy, Ag nanoparticles were densely assembled on porous aerogel structures, thus forming three-dimensional "hot spots" distribution with intrinsic large specific surface area and high porosity. These features can effectively enrich the analytes on the metal surface and provide huge near field enhancement. Highly sensitive and homogeneous SERS detections were achieved not only on the conventional liquid analytes but also on gas with the enhancement factor up to ∼108 and relative standard deviation as small as ∼13%. Robust calibration curves were obtained from the SERS data, which demonstrates the potential for the quantification analysis. Moreover, the powder shows extraordinary SERS stability than the conventional Ag nanostructures, which makes long term storage and convenient usage feasible. With all of these advantages, the porous SERS powder material can be extended to on-site SERS "nose" applications such as liquid and gas detections for chemical analysis, environmental monitoring, and anti-terrorism.
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Affiliation(s)
- Longkun Yang
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University Beijing 100048 P. R. China
| | - Zhifang Ren
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University Beijing 100048 P. R. China
| | - Meng Zhang
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University Beijing 100048 P. R. China
| | - Yanli Song
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University Beijing 100048 P. R. China
| | - Pan Li
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University Beijing 100048 P. R. China
- Beijing Center for Physical and Chemical Analysis, Beijing Academy of Science and Technology Beijing 100089 P. R. China
| | - Yun Qiu
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University Beijing 100048 P. R. China
| | - Pingye Deng
- Beijing Center for Physical and Chemical Analysis, Beijing Academy of Science and Technology Beijing 100089 P. R. China
| | - Zhipeng Li
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure (NPNS), Department of Physics, Capital Normal University Beijing 100048 P. R. China
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Cong T, Wang J, Zhao Y, Zhang D, Fan Z, Pan L. Tip-to-tip assembly of urchin-like Au nanostar at water-oil interface for surface-enhanced Raman spectroscopy detection. Anal Chim Acta 2021; 1154:338323. [PMID: 33736799 DOI: 10.1016/j.aca.2021.338323] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 02/04/2021] [Accepted: 02/11/2021] [Indexed: 11/18/2022]
Abstract
Au Nanostar (NS) monolayer as a surface enhanced Raman scattering (SERS) substrate has been synthesized by self-assembly at a water-oil interface. It is confirmed from the experiment and simulation results that the Au NS monolayer includes lots of "hot spots" at or between the tips of the Au NSs, enhancing the local electromagnetic fields and giving rise to strong SERS signals sequentially. The limit of detection is determined to be down to 4.2 × 10-12 M for rhodamine 6G. Furthermore, the Au NS monolayer can detect multiple molecules, including thiabendazole, methylene blue, 4-mercaptobenzoic acid, and p-amino thiophenol, indicating that the SERS substrate composed of Au NS monolayer has potential applications in analytical chemistry, food safety, and environmental safety.
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Affiliation(s)
- Tianze Cong
- School of Physics, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, PR China
| | - Jianzhen Wang
- School of Physics, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, PR China
| | - Yongpeng Zhao
- School of Physics, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, PR China; School of Microelectronics, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, PR China
| | - Dongmei Zhang
- School of Physics, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, PR China
| | - Zeng Fan
- School of Physics, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, PR China
| | - Lujun Pan
- School of Physics, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, PR China.
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Guo L, Cao H, Cao L, Li N, Zhang A, Shang Z, Jiao T, Liu HL, Wang M. Improve optical properties by modifying Ag nanoparticles on a razor clam SERS substrate. OPTICS EXPRESS 2021; 29:5152-5165. [PMID: 33726056 DOI: 10.1364/oe.418551] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 01/24/2021] [Indexed: 06/12/2023]
Abstract
Irregular substrates are inappropriate for enhancing surface enhanced Raman scattering (SERS) due to their poor performances in terms of uniformity, enhancement performance, and polarization characteristics. However, in this work, we purposely employed a natural biological razor clam material with messy and irregular structures to improve the SERS. The rough surface was achieved by magnetron sputtering Ag nanoislands on the prism layer of the razor clams, and the Ag nanoparticles were treated using the method of oil-water interface self-assembly to form relatively uniform structures. Compared to the substrate without Ag nanoparticles, the presented substrate has better reproducibility, polarization-independence, and higher SERS intensity, and the detect limitation of R6G can be decreased from 10-12 M to 10-18 M. The ultrasensitive detection of thiram gives our structures potential for high sensitivity biosensors.
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Esfandiari M, Jarchi S, Nasiri-Shehni P, Ghaffari-Miab M. Enhancing the sensitivity of a transmissive graphene-based plasmonic biosensor. APPLIED OPTICS 2021; 60:1201-1208. [PMID: 33690551 DOI: 10.1364/ao.411974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
A biosensor platform based on the plasmonic resonance of graphene in the terahertz (THz) range (0.1 to 10 THz) is designed and investigated. The initial design is to create a nanofluidic channel as a sensing layer in the substrate of a biosensor grounded by metal. The sensor consists of a rectangular graphene patch over the substrate, which can be fed by either an external near-field source or an antenna. The presence of molecules in the nanosensing layer causes small changes in the channel's properties, detectable through the scattering parameters of the designed biosensor. Since biomolecules are poorly absorbed in the initial biosensor, it can be grounded by a graphene sheet that is the same size as the graphene sheet over the substrate, which results in a performance improvement of the biosensor. It is shown that, by increasing the number of graphene sheets between the ground and the patch, high absorption occurs that enhances the sensitivity of the initial surface plasmon resonance THz biosensor. With varying refractive index of the sensing layer (Ns) in the range of 1.3-1.6, the proposed biosensors are investigated and compared with the initial biosensor. It is shown that by applying a graphene sheet between the two graphene sheets in the substrate, a maximum sensitivity of 8470 nm/RIU is achieved, which is a significant improvement, and also a sensitivity improvement of 4130 nm/RIU is achieved at Ns=1.3. In the final section, it is shown that changing the substrate material from silicon (Si) to silica (SiO2) brings a significant sensitivity enhancement in the proposed biosensor with three graphene sheets, which accounts for 15410 nm/RIU in the best scenario.
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Zhu T, Sun Y, Li C, Xia Y, Wang G, Lu W, Shao M, Man B, Yang C. Film wrap nanoparticle system with the graphene nano-spacer for SERS detection. OPTICS EXPRESS 2021; 29:1360-1370. [PMID: 33726353 DOI: 10.1364/oe.410603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Film wrap nanoparticle system (FWPS) is proposed and fabricated to perform SERS effect, where the Ag nanoparticle was completely wrapped by Au film and the double-layered graphene was selected as the sub-nano spacer. In this system, the designed nanostructure can be fully rather than partly used to generate hotspots and absorb probe molecules, compared to the nanoparticle to nanoparticle system (PTPS) or nanoparticle to film system (PTFS). The optimal fabricating condition and performance of this system were studied by the COMSOL Multiphysics. The simulation results show that the strongly large-scale localized electromagnetic field appears in the whole space between the Ag nanoparticle and Au film. The experimental results show that the FWPS presents excellent sensitivity (crystal violet (CV): 10-11 M), uniformity, stability and high enhancement factor (EF: 2.23×108). Malachite green (MG; 10-10 M) on the surface of fish and DNA strands with different base sequence (A, T, C) were successfully detected. These advanced results indicate that FWPS is highly promising to be applied for the detection of environmental pollution and biomolecules.
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Bagheri M, Jafari SM, Eikani MH. Ultrasonic-assisted production of zero-valent iron-decorated graphene oxide/activated carbon nanocomposites: Chemical transformation and structural evolution. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 118:111362. [DOI: 10.1016/j.msec.2020.111362] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/02/2020] [Accepted: 08/05/2020] [Indexed: 12/19/2022]
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Sun Y, Ge S, Xue J, Zhou X, Lu W, Li G, Cao X. Highly sensitive detection of cytochrome c in the NSCLC serum using a hydrophobic paper based-gold nanourchin substrate. BIOMEDICAL OPTICS EXPRESS 2020; 11:7062-7078. [PMID: 33408980 PMCID: PMC7747924 DOI: 10.1364/boe.408649] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 05/16/2023]
Abstract
Cytochrome c (Cyt c) is a biomarker of early apoptosis that plays a critical role in the diagnosis and therapy of non-small cell lung cancer (NSCLC). In this work, we proposed a novel surface-enhanced Raman scattering (SERS)-based biosensor to implement the ultrasensitive detection of Cyt c in the serum of NSCLC patients. The SERS-supporting substrates based on hydrophobic filter paper were composed of gold nanourchins (GNUs) surface-functionalized with the Cyt c aptamer and the cyanine 5-labeled complementary DNA. In the existence of Cyt c, it could specifically bind to its aptamer, which leads to the detachment of complementary strands modified with Cy5 and the great weakness of SERS signal. The finite-difference time domain (FDTD) simulation showed that the excellent SERS performance of GNUs aggregation was strongly dependent on a large number of "hot spots" at the tips and between the nanogaps of aggregated GNUs. Alkyl ketene dimer (AKD) was used to make the filter paper modify its property from hydrophilic to hydrophobic, which consequently increased the density of GNUs and extended the retention time of the analyte. SERS biosensors based on hydrophobic paper exhibited prominent reproducibility and selectivity. The detection limit of Cyt c in PBS was 1.148 pg/mL, while the detection limit in human serum was 1.79 pg/mL. Moreover, the analysis of the serum samples of healthy subjects and NSCLC patients confirmed the feasibility of its clinical application. The results were consistent with enzyme-linked immunosorbent assay results. This method can be a powerful strategy for quantitative detection of extracellular Cyt c, and it is expected that the SERS-based biosensors could be applied in the practical clinical diagnoses of NSCLC.
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Affiliation(s)
- Yue Sun
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, China
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Medical College, Yangzhou University, Yangzhou 225001, China
| | - Shengjie Ge
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, China
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Medical College, Yangzhou University, Yangzhou 225001, China
| | - Jin Xue
- Guangling College, Yangzhou University, Yangzhou 225001, China
| | - Xinyu Zhou
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, China
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Medical College, Yangzhou University, Yangzhou 225001, China
| | - Wenbo Lu
- Shanxi Normal University, College of Chemistry and Material Science, Linfen 041004, China
| | - Guang Li
- Department of Otorhinolaryngology, Affiliated Hospital of Yangzhou University, Yangzhou 225001, China
| | - Xiaowei Cao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, China
- Jiangsu Key Laboratory of Experimental and Translational Non-coding RNA Research, Medical College, Yangzhou University, Yangzhou 225001, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou 225009, China
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Liu L, Hou S, Zhao X, Liu C, Li Z, Li C, Xu S, Wang G, Yu J, Zhang C, Man B. Role of Graphene in Constructing Multilayer Plasmonic SERS Substrate with Graphene/AgNPs as Chemical Mechanism-Electromagnetic Mechanism Unit. NANOMATERIALS 2020; 10:nano10122371. [PMID: 33260554 PMCID: PMC7760367 DOI: 10.3390/nano10122371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/27/2020] [Accepted: 11/27/2020] [Indexed: 12/29/2022]
Abstract
Graphene–metal substrates have received widespread attention due to their superior surface-enhanced Raman scattering (SERS) performance. The strong coupling between graphene and metal particles can greatly improve the SERS performance and thus broaden the application fields. The way in which to make full use of the synergistic effect of the hybrid is still a key issue to improve SERS activity and stability. Here, we used graphene as a chemical mechanism (CM) layer and Ag nanoparticles (AgNPs) as an electromagnetic mechanism (EM) layer, forming a CM–EM unit and constructing a multi-layer hybrid structure as a SERS substrate. The improved SERS performance of the multilayer nanostructure was investigated experimentally and in theory. We demonstrated that the Raman enhancement effect increased as the number of CM–EM units increased, remaining nearly unchanged when the CM–EM unit was more than four. The limit of detection was down to 10−14 M for rhodamine 6G (R6G) and 10−12 M for crystal violet (CV), which confirmed the ultrahigh sensitivity of the multilayer SERS substrate. Furthermore, we investigated the reproducibility and thermal stability of the proposed multilayer SERS substrate. On the basis of these promising results, the development of new materials and novel methods for high performance sensing and biosensing applications will be promoted.
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Affiliation(s)
- Lu Liu
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Shuting Hou
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Xiaofei Zhao
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Chundong Liu
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Zhen Li
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Chonghui Li
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China;
- Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
| | - Shicai Xu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China;
| | - Guilin Wang
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Jing Yu
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Chao Zhang
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
- Correspondence: (C.Z.); (B.M.)
| | - Baoyuan Man
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
- Correspondence: (C.Z.); (B.M.)
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Han M, Lu H, Zhang Z. Fast and Low-Cost Surface-Enhanced Raman Scattering (SERS) Method for On-Site Detection of Flumetsulam in Wheat. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25204662. [PMID: 33066139 PMCID: PMC7587348 DOI: 10.3390/molecules25204662] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/28/2020] [Accepted: 10/10/2020] [Indexed: 11/16/2022]
Abstract
The pesticide residues in agri-foods are threatening people’s health. This study aims to establish a fast and low-cost surface-enhanced Raman scattering (SERS) method for the on-site detection of flumetsulam in wheat. The two-step modified concentrated gold nanoparticles (AuNPs) acted as the SERS substrate with the aid of NaCl and MgSO4. NaCl is served as the activator to modify AuNPs, while MgSO4 is served as the aggregating agent to form high-density hot spots. The activation and aggregation are two essential collaborative procedures to generate remarkable SERS enhancement and achieve the trace-level detection of flumetsulam. This method exhibits good enhancement effect with an enhancement factor of 106 and wide linear range (5–1000 μg/L). With simple pretreatment, the flumetsulam residue in real wheat samples can be successfully detected with the limit of detection (LOD) down to 0.01 μg/g, which is below the maximum residue limit of flumetsulam in wheat (0.05 μg/g) set in China. The recovery of flumetsulam residue in wheat ranges from 88.3% to 95.6%. These results demonstrate that the proposed SERS method is a powerful technique for the detection of flumetsulam in wheat, which implies the great application potential in the rapid detection of other pesticide residues in various agri-foods.
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Thi TLP, Vu DKN, Thi PAN, Nguyen DKV. Silver nanoparticles-assembled graphene oxide sheets on TiO2 nanotubes: synthesis, characterization, and photocatalytic investigation. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01445-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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50
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Hou L, Shao M, Li Z, Zhao X, Liu A, Zhang C, Xiu X, Yu J, Li Z. Elevating the density and intensity of hot spots by repeated annealing for high-efficiency SERS. OPTICS EXPRESS 2020; 28:29357-29367. [PMID: 33114837 DOI: 10.1364/oe.403940] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
The simultaneous output of highly sensitive and reproducible signals for surface-enhanced Raman spectroscopy (SERS) technology remains difficult. Here, we propose a two-dimensional (2D) composite structure using the repeated annealing method with MoS2 film as the molecular adsorbent. This method provides enlarged Au nanoparticle (NP) density with much smaller gap spacing, and thus dramatically increases the density and intensity of hot spots. The MoS2 films distribute among the hot spots, which is beneficial for uniform molecular adsorption, and further increases the sensitivity of the SERS substrate. Three kinds of molecules were used to evaluate the SERS substrate. Ultra-sensitive, highly repetitive, and stable SERS signals were obtained, which would promote the application process of SERS technology in quantitative analysis and detection.
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