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Sharma S, Sharma K, Majhi S, Shekhar Pati Tripathi C, Guin D. Facile synthesis of Ag NPs@MgO nanosheets for quantitative SERS-based detection and removal of hazardous organic pollutants. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 323:124885. [PMID: 39096678 DOI: 10.1016/j.saa.2024.124885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/27/2024] [Accepted: 07/25/2024] [Indexed: 08/05/2024]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a highly precise and non-invasive analytical method known for its ability to detect vibrational signatures of minute analytes with exceptional sensitivity. However, the efficacy of SERS is subject to substrate properties, and current methodologies face challenges in attaining consistent, replicable, and stable substrates to regulate plasma hot spots across a wide spectral range. This study introduces a straightforward and economical approach that incorporates monodispersed silver nanoparticles onto 2-D porous magnesium oxide nanosheets (Ag@MgO-NSs) through an in-situ process. The resulting nanocomposite, Ag@MgO-NSs, demonstrates substantial SERS enhancement owing to its distinctive plasmonic resonance. The effectiveness of this nanocomposite is exemplified by depositing diverse environmental pollutants as analytes, such as antibiotic ciprofloxacin (CIP), organic dyes like rhodamine 6G (R6G) and methylene blue (MB), and nitrogen-rich pollutant like melamine (MLN), onto the proposed substrate. The proposed nanocomposite features a 2-D porous structure, resulting in a larger surface area and consequently providing numerous adsorption sites for analytes. Moreover, engineering the active sites of the nanocomposite results in a higher number of hotspots, leading to an enhanced performance. The nanocomposite outperforms, exhibiting superior detection capabilities for R6G, MB, and MLN at concentrations of 10-6 M and CIP at concentration of 10-5 M, with impressive uniformity, reproducibility, stability, and analytical enhancement factors (EF) of 6.3 x 104, 2 x 104, 2.73 x 104 and 1.8 x 104 respectively. This approach provides a direct and cost-effective method for the detection of a broad spectrum of environmental pollutants and food additives, presenting potential applications across diverse domains. The detected environmental pollutants and food additives are removed through both catalytic degradation (R6G and MB) and adsorption (CIP and MLN).
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Affiliation(s)
- Surbhi Sharma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Keshav Sharma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Shukla Majhi
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | | | - Debanjan Guin
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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Zhang Y, Peng S, Liu D, Zhu F. Design and engineering of 3D plasmonic superstructure based on Pickering emulsion templates for surface-enhanced Raman spectroscopy applications in chemical and biomedical sensing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 323:124921. [PMID: 39126866 DOI: 10.1016/j.saa.2024.124921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/30/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024]
Abstract
The integration of Pickering emulsion as a versatile template facilitates the assembly of nanoscale and microscale NPs, leading to the formation of intricate 3D superstructures. These superstructures exhibit collective properties, including optical, electric, and catalytic functionalities, surpassing individual building block. This review comprehensively explores the design and engineering principles behind the creation of these multifaceted superstructures. The exploration begins with the fundamental aspects of surface chemistry governing nanoparticles, a crucial factor in directing their assembly behavior at the curved liquid-liquid emulsion interface. Emphasis is placed on understanding emulsion stability, a pivotal element guiding the formation of stable 3D architectures. The discussion extends to unraveling the underlying mechanisms promoting the formation of these 3D superstructures. The focus lies in elucidating the optical functionalities of these superstructures, particularly in the context of surface-enhanced Raman spectroscopy application. The surveyed literature showcases diverse Pickering emulsion-based strategies employed in the assembly of plasmonic nanoparticles into intricate superstructures, offering controlled architectures and unlocking unique potentials for chemical and biochemical sensing.
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Affiliation(s)
- Yingrui Zhang
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, Northern Ireland BT7 1NN, UK
| | - Sasa Peng
- College of Food Science and Technology, Northwest University, 229 Taibei North Road, Xi'an, Shanxi 710069, China
| | - Dongli Liu
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, Northern Ireland BT7 1NN, UK; College of Food Science and Technology, Northwest University, 229 Taibei North Road, Xi'an, Shanxi 710069, China
| | - Fang Zhu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Key Laboratory of Precision Radiation Oncology, Wuhan 430022, China.
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3
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Chen B, Fan L, Li C, Xia L, Wang K, Wang J, Pang D, Zhu Z, Ma P. Au nanoparticles decorated β-Bi 2O 3 as highly-sensitive SERS substrate for detection of methylene blue and methyl orange. Analyst 2024; 149:4283-4294. [PMID: 38984809 DOI: 10.1039/d4an00633j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
In this work, Au/Bi2O3 was synthesized by loading Au nanoparticles (NPs) onto β-Bi2O3 by a simple solution reduction method. β-Bi2O3 was synthesized by a precipitation-thermal decomposition procedure, which results in significantly improved SERS detection limits down to 10-9 M for methylene blue (MB) and 10-7 M for methyl orange (MO) as probe molecules, comparable to those reported for the best semiconductor SERS substrates. In particular, further deposition of Au NPs (5.20% wt%) onto β-Bi2O3 results in a two-order-of-magnitude enhancement in detection sensitivity, achieving a detection limit of 10-11 M for MB and 10-9 M for MO. Under ultraviolet/visible irradiation, the Au/Bi2O3 hybrids substrate exhibits superior self-cleaning ability due to its photocatalytic degradation ability which can be applied repeatedly to the detection of pollutants. The advanced composite substrate simultaneously achieved ultra-low mass loading of Au NPs, outstanding detection performance, good reproducibility, high stability and self-cleaning ability. The development strategy of low load noble metal coupled high performance semiconductor β-Bi2O3 to obtain nano-hybrid materials provides a method to balance SERS sensitivity, cost effectiveness and operational stability, and can be synthesized in large quantities, which is a key step towards commercialization and has good reliability prospects.
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Affiliation(s)
- Binbin Chen
- Beijing Key Laboratory of Microstructure and Properties of Solids, Beijing University of Technology, Beijing 100124, China.
| | - Lizhu Fan
- National Key Laboratory of Integrated Circuits and Microsystems, Chongqing 401332, China
| | - Chunyu Li
- Institute of Physical chemistry, Friedrich Schiller University Jena, 407743 Helmholtzweg, Germany
| | - Lu Xia
- Faculty of Mechanical Engineering, RWTH Aachen University, 52062 Aachen, Germany
| | - Kaiwen Wang
- Beijing Key Laboratory of Microstructure and Properties of Solids, Beijing University of Technology, Beijing 100124, China.
| | - Jinshu Wang
- School of Public Health and Health Sciences, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Dawei Pang
- Beijing Key Laboratory of Microstructure and Properties of Solids, Beijing University of Technology, Beijing 100124, China.
| | - Zhouhao Zhu
- College of Physics and Centre of Quantum Materials and Devices, Chongqing University, Chongqing 401331, China.
| | - Peijie Ma
- Beijing Key Laboratory of Microstructure and Properties of Solids, Beijing University of Technology, Beijing 100124, China.
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Kanike C, Lu Q, Wu H, Unsworth LD, Atta A, Zhang X. Plasmonic Nanostructures Grown from Reacting Droplet-In-Microwell Array on Flexible Films for Quantitative Surface-Enhanced Raman Spectroscopy in Plant Wearable In Situ Detection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2405576. [PMID: 39039736 DOI: 10.1002/adma.202405576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/20/2024] [Indexed: 07/24/2024]
Abstract
Plant wearable detection has garnered significant interest in advancing agricultural intelligence and promoting sustainable food production amidst the challenges of climate change. Accurately monitoring plant health and agrochemical residue levels necessitates qualities such as precision, affordability, simplicity, and noninvasiveness. Here, a novel attachable plasmonic film is introduced and designed for on-site detection of agrochemical residues utilizing surface-enhanced Raman spectroscopy (SERS). By functionalizing a thin polydimethylsiloxane film with silver nanoparticles via controlled droplet reactions in micro-well arrays, a plasmonic film is achieved that not only maintains optical transparency for precise analyte localization but also conforms closely to the plant surface, facilitating highly sensitive SERS measurements. The reliability of this film enables accurate identification and quantification of individual compounds and their mixtures, boasting an ultra-low detection limit ranging from 10-16 to 10-13 m, with mini mal relative standard deviation. To showcase its potential, on-field detection of pesticide residues on fruit surfaces is conducted using a handheld Raman spectrometer. This advancement in fabricating plasmonic nanostructures on flexible films holds promise for expanding SERS applications beyond plant monitoring, including personalized health monitoring, point-of-care diagnosis, wearable devices for human-machine interface, and on-site monitoring of environmental pollutants.
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Affiliation(s)
- Chiranjeevi Kanike
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Qiuyun Lu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Hongyan Wu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Larry D Unsworth
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Arnab Atta
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Xuehua Zhang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
- Physics of Fluids Group, Max Planck Center Twente for Complex Fluid Dynamics, JM Burgers Center for Fluid Dynamics, Mesa+, Department of Science and Technology, University of Twente, Enschede, NB, 7522, The Netherlands
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Qi X, Cheng Y, Xu R, Li X, Zhang Z, Chen L, Shao Y, Gao Z, Zhu M. Designing of a functional paper-tip substrate for sensitive surface-enhanced Raman spectroscopy (SERS) detection. Anal Chim Acta 2023; 1280:341872. [PMID: 37858570 DOI: 10.1016/j.aca.2023.341872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/21/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023]
Abstract
A simple and flexible fabrication method of paper SERS substrate was developed by nanoparticles (NPs) droplet self-assembly at the paper tip with a temperature gradient (PTTG). We turned the drawback of the coffee ring effect into an effective way of preparing paper SERS substrate. When the NPs droplets were continuously dripped onto the PTTG, NPs were densely and uniformly distributed at the paper-tip front based on the combination of gravity and the coffee ring effect, which could achieve 91.2-fold improvement of SERS performance compared to a flat filter paper. Meanwhile, the analytes could also be enriched at the paper-tip front, which could achieve 9.3-fold signal enhancement compared to the paper-tip tail. Thus, the PTTG realized an excellent signal amplification for SERS detection. The paper-tip SERS substrate combined with a portable Raman spectrometer yielded an excellent analytical enhancement factor of 1.15 × 105 with the detection limit of 10 nM Rhodamine 6G (R6G). The whole fabrication procedure was completed within 2 h, and the paper-tip substrate showed a satisfactory substrate-to-substrate reproducibility with a relative standard deviation (RSD) of 5.13% (n = 10). It was successfully applied for quantitatively detecting real samples of oxytetracycline and malachite green with recoveries of 83.84-105.25% (n = 3). Meanwhile, we further evaluated the SERS performance of the PTTG using a laboratory-based Raman spectrometer, and it could realize the detection as low as 10 pM R6G. The proposed paper-tip substrate would offer a promising potential application for the on-site SERS analysis of food safety and environmental health.
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Affiliation(s)
- Xiaoxiao Qi
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University (Qingdao), No. 72, Binhai Road, Jimo District, Qingdao, Shandong Province, 266237, China
| | - Yongqiang Cheng
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University (Qingdao), No. 72, Binhai Road, Jimo District, Qingdao, Shandong Province, 266237, China.
| | - Ranran Xu
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University (Qingdao), No. 72, Binhai Road, Jimo District, Qingdao, Shandong Province, 266237, China
| | - Xiaotong Li
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University (Qingdao), No. 72, Binhai Road, Jimo District, Qingdao, Shandong Province, 266237, China
| | - Ziwei Zhang
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University (Qingdao), No. 72, Binhai Road, Jimo District, Qingdao, Shandong Province, 266237, China
| | - Longyu Chen
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University (Qingdao), No. 72, Binhai Road, Jimo District, Qingdao, Shandong Province, 266237, China
| | - Yifan Shao
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University (Qingdao), No. 72, Binhai Road, Jimo District, Qingdao, Shandong Province, 266237, China
| | - Zhenhui Gao
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University (Qingdao), No. 72, Binhai Road, Jimo District, Qingdao, Shandong Province, 266237, China
| | - Meijia Zhu
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University (Qingdao), No. 72, Binhai Road, Jimo District, Qingdao, Shandong Province, 266237, China
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Fang G, Hasi W, Sha X, Cao G, Han S, Wu J, Lin X, Bao Z. Interfacial Self-Assembly of Surfactant-Free Au Nanoparticles as a Clean Surface-Enhanced Raman Scattering Substrate for Quantitative Detection of As 5+ in Combination with Convolutional Neural Networks. J Phys Chem Lett 2023; 14:7290-7298. [PMID: 37560985 DOI: 10.1021/acs.jpclett.3c01969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is a highly sensitive tool in the field of environmental testing. However, the detection and accurate quantification of weakly adsorbed molecules (such as heavy metal ions) remain a challenge. Herein, we combine clean SERS substrates capable of capturing heavy metal ions with convolutional neural network (CNN) algorithm models for quantitative detection of heavy metal ions in solution. The SERS substrate consists of surfactant-free Au nanoparticles (NPs) and l-cysteine molecules. As plasmonic nanobuilt blocks, surfactant-free Au NPs without physical or chemical barriers are more accessible to target molecules. The amino and carboxyl groups in the l-cysteine molecule can chelate As5+ ions. The CNN algorithm model is applied to quantify and predict the concentration of As5+ ions in samples. The results demonstrated that this strategy allows for fast and accurate prediction of As5+ ion concentrations, and the determination coefficient between the predicted and actual values is as high as 0.991.
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Affiliation(s)
- Guoqiang Fang
- National Key Laboratory of Science and Technology on Tuneable Laser, Harbin Institute of Technology, Harbin, 150080, China
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
| | - Wuliji Hasi
- National Key Laboratory of Science and Technology on Tuneable Laser, Harbin Institute of Technology, Harbin, 150080, China
| | - Xuanyu Sha
- National Key Laboratory of Science and Technology on Tuneable Laser, Harbin Institute of Technology, Harbin, 150080, China
| | - Guangxu Cao
- Research Center for Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Siqingaowa Han
- Department of Combination of Mongolian Medicine and Western Medicine Stomatology, Affiliated Hospital of Inner Mongolia University for the Nationalities, Tongliao 028043, China
| | - Jinlei Wu
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
| | - Xiang Lin
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
| | - Zhouzhou Bao
- Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
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7
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Ji G, Tian J, Xing F, Feng Y. Optical Biosensor Based on Graphene and Its Derivatives for Detecting Biomolecules. Int J Mol Sci 2022; 23:10838. [PMID: 36142748 PMCID: PMC9500660 DOI: 10.3390/ijms231810838] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 12/24/2022] Open
Abstract
Graphene and its derivatives show great potential for biosensing due to their extraordinary optical, electrical and physical properties. In particular, graphene and its derivatives have excellent optical properties such as broadband and tunable absorption, fluorescence bursts, and strong polarization-related effects. Optical biosensors based on graphene and its derivatives make nondestructive detection of biomolecules possible. The focus of this paper is to review the preparation of graphene and its derivatives, as well as recent advances in optical biosensors based on graphene and its derivatives. The working principle of face plasmon resonance (SPR), surface-enhanced Raman spectroscopy (SERS), fluorescence resonance energy transfer (FRET) and colorimetric sensors are summarized, and the advantages and disadvantages of graphene and its derivatives applicable to various types of sensors are analyzed, and the methods of surface functionalization of graphene and its derivatives are introduced; these optical biosensors can be used for the detection of a range of biomolecules such as single cells, cellular secretions, proteins, nucleic acids, and antigen-antibodies; these new high-performance optical sensors are capable of detecting changes in surface structure and biomolecular interactions with the advantages of ultra-fast detection, high sensitivity, label-free, specific recognition, and the ability to respond in real-time. Problems in the current stage of application are discussed, as well as future prospects for graphene and its biosensors. Achieving the applicability, reusability and low cost of novel optical biosensors for a variety of complex environments and achieving scale-up production, which still faces serious challenges.
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Affiliation(s)
- Guangmin Ji
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
| | - Jingkun Tian
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
| | - Fei Xing
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
| | - Yu Feng
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, China
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Luo W, Hu Y, Zhang H, Yuan R, Yang X. Oriented interfacial self-assembled SERS platform with dual nucleic acid amplification for detection of MiRNA 21. Anal Chim Acta 2022; 1224:340221. [DOI: 10.1016/j.aca.2022.340221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/29/2022] [Accepted: 07/30/2022] [Indexed: 11/01/2022]
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9
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Li X, Lin X, Fang G, Dong H, Li J, Cong S, Wang L, Yang S. Interfacial layer-by-layer self-assembly of PS nanospheres and Au@Ag nanorods for fabrication of broadband and sensitive SERS substrates. J Colloid Interface Sci 2022; 620:388-398. [DOI: 10.1016/j.jcis.2022.04.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/14/2022] [Accepted: 04/07/2022] [Indexed: 10/18/2022]
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10
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Zhou B, Qu C, Du S, Gao W, Zhang Y, Ding Y, Wang H, Hou R, Su M, Liu H. Multi-analyte High-Throughput Microplate-SERS Reader with Controllable Liquid Interfacial Arrays. Anal Chem 2022; 94:7528-7535. [PMID: 35581026 DOI: 10.1021/acs.analchem.2c00252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
High-throughput surface-enhanced Raman scattering (SERS) reader, especially for liquid sample testing, is of great significance and huge demand in biology, environment, and other analytical fields. Inspired by the principle of microplate reader, herein, we developed a microplate-SERS reader for semiautomatic and high-throughput assays by virtue of three-dimensional liquid interfacial arrays (LIAs). For the first time, the formation of LIA in oil-in-water state, water-in-oil state, and two-dimensional plane state is realized by operating the hydrophilicity (contact angle) of the container. Through the force analysis of LIA, the effect of organic (O) phase density on the relative position of LIA was quantified. In addition, the optimized reader offers fast and continuous semiautomatic detection of 12 samples below 10 min with great signal reproducibility (calibration with the characteristic peak of O phase as the internal standard). The isolated wells in the microplate prevent analyte cross talk, allowing accurate quantification of each sample. Multiplex analysis capability highlights that this reader has the ability of rapid identification and quantification of samples containing various analytes and concentrations. The results demonstrate high-resolution dual and triple analyte detection with fully preserved signal and Raman features of individual analytes in a mixture, which implies that it also has excellent anticounterfeiting applications. This microplate-SERS reader combines the superior advantages of the LIA, microplate, and SERS techniques to retrieve the molecular vibrational fingerprints of various chemicals in complex media.
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Affiliation(s)
- Baomei Zhou
- School of Food and Biological Engineering, Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Cheng Qu
- School of Food and Biological Engineering, Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Shanshan Du
- School of Food and Biological Engineering, Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Wanjun Gao
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China
| | - Yu Zhang
- School of Food and Biological Engineering, Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Yan Ding
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Hongyan Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Ruyan Hou
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China
| | - Mengke Su
- School of Food and Biological Engineering, Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China.,State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, Anhui 230036, China
| | - Honglin Liu
- School of Food and Biological Engineering, Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, China
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Yu H, Chang X, Li Q, Sun X, Li A, Zhang Z, Zhao W. One-step self-assembly for fabricating dual responsive fluorescent aggregates. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Development of SERS platform based on ZnO multipods decorated with Ag nanospheres for detection of 4-nitrophenol and rhodamine 6G in real samples. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106660] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Jamali SB, Khaskheli MA, Abro MI, Chand R, Rekik N, Affan H, Ikram R. Confirming the SERS enhancement at large mapping area using self-assembly of silver nanocube at liquid-liquid cyclohexane/water interface. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115365] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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14
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Ma Y, Chen Y, Tian Y, Gu C, Jiang T. Contrastive Study of In Situ Sensing and Swabbing Detection Based on SERS-Active Gold Nanobush-PDMS Hybrid Film. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1975-1983. [PMID: 33544589 DOI: 10.1021/acs.jafc.0c06562] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Surface-enhanced Raman scattering (SERS) with fast and intuitive property has been extensively utilized in the field of food safety. Here, we demonstrated a novel noble metal-polymer hybrid film as a SERS substrate for food fungicide analysis. Benefiting from its transparency and flexibility, poly(dimethylsiloxane) (PDMS) film was chosen as a versatile supporting matrix to grow gold nanobushes (Au NBs) through a seed-mediated process. The as-prepared AuNB-PDMS hybrid film performed satisfactorily in testing 4-nitrothiophenol (4NTP) and exhibited an enhancement factor (EF) of 2.56 × 106. Moreover, the high sensitivity and elastic properties make the hybrid film a promising substrate in practical detection. Hence, the in situ sensing of TBZ, carbaryl, and their mixture was finally realized using the developed hybrid film, which exhibited higher sensitivity than that obtained by the swabbing method. This high-performance SERS substrate based on the flexible and transparent AuNB-PDMS hybrid film has great potential applications in the fast in situ monitoring of biochemical molecules.
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Affiliation(s)
- Yi Ma
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 818 Fenghua Road, Ningbo 315211, Zhejiang, P. R. China
| | - Ying Chen
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 818 Fenghua Road, Ningbo 315211, Zhejiang, P. R. China
| | - Yiran Tian
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 818 Fenghua Road, Ningbo 315211, Zhejiang, P. R. China
| | - Chenjie Gu
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 818 Fenghua Road, Ningbo 315211, Zhejiang, P. R. China
| | - Tao Jiang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 818 Fenghua Road, Ningbo 315211, Zhejiang, P. R. China
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Lin S, Li X, Fang G, Zhao H, Wang L, Dong B. Tetragonal Superlattice of Elongated Rhombic Dodecahedra for Sensitive SERS Determination of Pesticide Residues in Fruit. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56350-56360. [PMID: 33274931 DOI: 10.1021/acsami.0c17471] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The self-assembly of plasmonic nanoparticles into highly ordered superlattices could pave the way toward novel nanomaterials for surface-enhanced Raman scattering (SERS). Here, we propose the formation of large-area superlattices of elongated rhombic dodecahedra in a vertical orientation via a controlled droplet evaporation process. Expectedly, the constant humidity of the experimental condition could control the evaporation speed of droplets and this procedure promotes the balance between driven depletion attraction and electrostatic repulsion in the system, leading to the generation of well-organized three-dimensional (3D) superlattices. The unique geometry of elongated rhombic dodecahedra could establish the tetragonal superlattices, which breaks the conventional hexagonal symmetry of gold nanorods. Specifically, the influence of the type and concentration of surfactants, the concentration of nanoparticles, and the amount of droplets on the preparation results were systematically investigated to find the optimal assembly parameters. Remarkably, such close-packed tetragonal arrays of vertically aligned elongated rhombic dodecahedra exhibit more excellent SERS performance compared with the traditional hexagonal superstructure of gold nanorods. Benefiting from the high sensitivity and reproducibility of elongated rhombic dodecahedron superlattices, their applications in the determination of pesticide residues in apple and grape peels were successfully demonstrated. As a result, this study may advance the production of innovative plasmonic nanomaterials for a broad range of fields.
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Affiliation(s)
- Shuang Lin
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
| | - Xinxin Li
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
| | - Guoqiang Fang
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
| | - Haiyan Zhao
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
| | - Li Wang
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
| | - Bin Dong
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China
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16
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Li L, Chin WS. Rapid Fabrication of a Flexible and Transparent Ag Nanocubes@PDMS Film as a SERS Substrate with High Performance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37538-37548. [PMID: 32701289 DOI: 10.1021/acsami.0c07178] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Flexible and transparent surface-enhanced Raman scattering (SERS) substrates have long been sought-after for nondestructive detection of analytes on nonplanar surfaces, but there is still a lack of one convenient and robust way to fabricate such SERS substrates rapidly. Herein, we demonstrate the fabrication of a high-performance SERS substrate consisting of plasmonic Ag nanocube (Ag NC) arrays anchored onto a flexible transparent poly(dimethylsiloxane) (PDMS) membrane. Through a simple organic/water interfacial self-assembly method, arrays of presynthesized Ag NCs are obtained and directly retrieved onto the PDMS membrane without the aid of rigid substrates (e.g., Si wafers or glass slides). The plasmonic Ag NC arrays can produce strong electromagnetic enhancement, achieving high SERS enhancement factor (∼3.43 × 106) and ideal detection capability for methylene blue (MB) and Rhodamine 6G (R6G) at respective trace amounts of 10-10 and 10-9 M. Moreover, without the need to transfer from substrate to substrate, the regular Ag NC arrays are kept intact, thereby yielding a good reproducibility (RSD ∼12%). We demonstrate further that our as-fabricated SERS substrate displays ideal selectivity toward different kinds of analyte molecules (R6G, crystal violet (CV), and MB) based on principal component analysis. The PDMS membrane owns excellent transparency and flexibility; thus, the substrate enables the conformal contact with nonplanar surfaces and allows the penetration of a laser to reach the analytes from the reverse side of the substrate. This thus facilitates in situ SERS detection of trace residual crystal violet on fish skin, with limit of detection (LOD) reaching 0.6 ppm. This fabrication method reported here is economical and easily implemented. The robust Ag NCs@PDMS could be readily prepared and stored to meet diverse SERS sensing applications, especially for in situ detection of analytes on irregular nonplanar surfaces.
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Affiliation(s)
- Limin Li
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Wee Shong Chin
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, 117543, Singapore
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17
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Chang YH, Jang JW, Chang YC, Lee SH, Siao TF. Gold Nanohelices: A New Synthesis Route, Characterization, and Plasmonic E-Field Enhancement. ACS OMEGA 2020; 5:14860-14867. [PMID: 32637760 PMCID: PMC7330912 DOI: 10.1021/acsomega.9b02586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Gold nanohelices (AuNHs) are synthesized using surfactant-assisted seed-mediated growth in an aqueous solution. AuNHs with diameters and lengths of 30-150 nm and several micrometers, respectively, are grown in a reaction carried out at 15 °C for 20 h by adding poly(ethylene glycol)(12)tridecyl ether, polyvinylpyrrolidone, and cetyltrimethylammonium bromide as the capping agents in an HAuCl4(aq) solution. With the addition of gold nanoparticles (AuNPs) in the reaction, the yield of the helical products is considerably increased, which indicates that AuNPs behave as the seeds for AuNH growth. The growth routes of AuNHs in the system are investigated by transmission electron microscopy measurements. Finite-difference time-domain (FDTD) simulations show that total extinction of the AuNH at 660 and 570 nm is dominantly influenced by strong e-field enhancement and the scattering of light incidence. In a practical application, surface-enhanced Raman scattering (SERS) measurements are conducted using AuNHs as the substrates and 4-mercaptobenzoic acid as the probe. A detection limit of 20 ppb is acquired using a micro-Raman spectrometer using a 633 nm He-Ne laser with a power of 3.35 mW which corresponds with the FDTD simulation results and reveals that AuNHs are superior SERS templates with resonance tuning ability in consequence of their unique helical architectures.
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Affiliation(s)
- Yu-Hsu Chang
- Department
of Materials and Mineral Resources Engineering, Institute of Mineral
Resources Engineering, National Taipei University
of Technology, Taipei 10608, Taiwan, R.O.C.
| | - Jae-Won Jang
- Division
of Physics and Semiconductor Science, Dongguk
University, Seoul 04620, Republic of Korea
| | - Yao-Chun Chang
- Department
of Materials and Mineral Resources Engineering, Institute of Mineral
Resources Engineering, National Taipei University
of Technology, Taipei 10608, Taiwan, R.O.C.
| | - Seung-Hoon Lee
- Oak
Ridge Institute for Science and Education, Durham, North Carolina 27708, United States
- Department
of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Ting-Fong Siao
- Department
of Materials and Mineral Resources Engineering, Institute of Mineral
Resources Engineering, National Taipei University
of Technology, Taipei 10608, Taiwan, R.O.C.
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18
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He X, Zhou X, Liu W, Liu Y, Wang X. Flexible DNA Hydrogel SERS Active Biofilms for Conformal Ultrasensitive Detection of Uranyl Ions from Aquatic Products. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2930-2936. [PMID: 32114763 DOI: 10.1021/acs.langmuir.9b03845] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
It is of great significance to sensitively and conveniently detect trace UO22+ ions in biological and environmental samples due to severe health risks. However, such suitable sensors are still scarce. In this work, DNAzyme-based hydrogels modified on Ag NP-grafted PAN nanorods array as flexible SERS biosensor have been developed for ultrasensitive UO22+ ion detection. They were first formed by the substrate strand and enzyme strand comprising the main cleavage-reaction stem-loop complex. Then, a UO22+ ions responsive smart hydrogel capsule was achieved by DNAzyme complex hybridized with DNA polyacrylamide chains. Raman reporter RhB was introduced and intentionally trapped inside the hydrogel. In the absence of UO22+ ions, a tiny Raman signal was presented because RhB was trapped inside the hydrogel and far away from SERS substrates. Conversely, the responsive hydrogel could be specifically attacked by UO22+ ions to release RhB, leading to a strong Raman signal. With the amplified signal procedure, this flexible SERS biofilm accomplished sensitive and selective detection of UO22+ ions with a wide linear range from 1 pM to 0.1 μM and a low detection limit of 0.838 pM. This result is nearly five orders below the EPA-defined maximum contaminant level (180 nM). Furthermore, this biofilm gives full play to the advantages of a flexible biosensor. It can directly detect the aquatic products (such as fish and kelp) polluted by UO22+ ions, demonstrating that this flexible SERS biofilm has promising potential for applications in a rapid environmental safety inspection.
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Affiliation(s)
- Xuan He
- College of Chemistry, Sichuan University, Chengdu 610064, China
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Xin Zhou
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Wei Liu
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Yu Liu
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Xiaolin Wang
- College of Chemistry, Sichuan University, Chengdu 610064, China
- China Academy of Engineering Physics, Mianyang 621900, China
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Barveen NR, Wang TJ, Chang YH. Retracted Article: Synergistic action of star-shaped Au/Ag nanoparticles decorated on AgFeO 2 for ultrasensitive SERS detection of a chemical warfare agent on real samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:1342-1352. [PMID: 35178542 DOI: 10.1039/c9ay02347j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
It is a great challenge to design and fabricate a cost-effective surface-enhanced Raman spectroscopy (SERS) substrate with excellent reproducibility and sensitivity for reliable environmental analysis. In this work, we have synthesized silver ferrite (AgFeO2) interlinked with star-shaped gold/silver (Au/Ag) bimetallic (BM) nanoparticles (NPs) by a simple physical method for the effective detection of an acetylcholinesterase (AchE) inhibitor, paraoxon ethyl (PE). The successful construction of AgFeO2@Au/Ag NPs was confirmed by UV-Vis spectroscopy, X-ray diffraction, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy and Raman spectroscopy. The enhancement of the SERS signal is achieved by the synergistic effect of the charge transfer mechanism and electromagnetic mechanism. The Raman peak centered at 1357 cm-1 was selected as an ideal peak for the quantitative analysis of PE. The AgFeO2@Au/Ag NPs can detect PE down to 1 × 10-8 M with a high analytical enhancement factor of 3.53 × 106 and excellent uniformity, as determined randomly from 14 spots (relative standard deviation, RSD, <15%). The recovery values of PE in tap water and tomato juice were from 93.16% to 99.16%. All these results suggest that our proposed SERS substrate has promising potential for the detection of PE. The proposed simple strategy for PE detection by SERS using AgFeO2@Au/Ag NPs paves the way for future reliable environmental analysis and real sample monitoring.
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Affiliation(s)
- Nazar Riswana Barveen
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.
- Department of Materials and Mineral Resources Engineering, Institute of Mineral Resources Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Tzyy-Jiann Wang
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.
| | - Yu-Hsu Chang
- Department of Materials and Mineral Resources Engineering, Institute of Mineral Resources Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
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Xu K, Zhou R, Takei K, Hong M. Toward Flexible Surface-Enhanced Raman Scattering (SERS) Sensors for Point-of-Care Diagnostics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900925. [PMID: 31453071 PMCID: PMC6702763 DOI: 10.1002/advs.201900925] [Citation(s) in RCA: 227] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 05/26/2019] [Indexed: 05/18/2023]
Abstract
Surface-enhanced Raman scattering (SERS) spectroscopy provides a noninvasive and highly sensitive route for fingerprint and label-free detection of a wide range of molecules. Recently, flexible SERS has attracted increasingly tremendous research interest due to its unique advantages compared to rigid substrate-based SERS. Here, the latest advances in flexible substrate-based SERS diagnostic devices are investigated in-depth. First, the intriguing prospect of point-of-care diagnostics is briefly described, followed by an introduction to the cutting-edge SERS technique. Then, the focus is moved from conventional rigid substrate-based SERS to the emerging flexible SERS technique. The main part of this report highlights the recent three categories of flexible SERS substrates, including actively tunable SERS, swab-sampling strategy, and the in situ SERS detection approach. Furthermore, other promising means of flexible SERS are also introduced. The flexible SERS substrates with low-cost, batch-fabrication, and easy-to-operate characteristics can be integrated into portable Raman spectroscopes for point-of-care diagnostics, which are conceivable to penetrate global markets and households as next-generation wearable sensors in the near future.
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Affiliation(s)
- Kaichen Xu
- Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering Drive 3Singapore117576Singapore
- Department of Physics and ElectronicsOsaka Prefecture University SakaiOsaka599‐8531Japan
| | - Rui Zhou
- School of Aerospace EngineeringXiamen University422 Siming South Road, Siming DistrictXiamenFujian361005P. R. China
| | - Kuniharu Takei
- Department of Physics and ElectronicsOsaka Prefecture University SakaiOsaka599‐8531Japan
| | - Minghui Hong
- Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering Drive 3Singapore117576Singapore
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