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Sensing Alzheimer’s Disease Utilizing Au Electrode by Controlling Nanorestructuring. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10030094] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This paper reports the development of Alzheimer’s disease (AD) sensor through early detection of amyloid-beta (Aβ) (1–42) using simple nanorestructuring of Au sheet plate by oxidation-reduction cycle (ORC) via the electrochemical system. The topology of Au substrates was enhanced through the roughening and Au grains grown by a simple ORC technique in aqueous solutions containing 0.1 mol/L KCl electrolytes. The roughened substrate was then functionalized with the highly specific antibody β-amyloid Aβ (1–28) through HS-PEG-NHS modification, which enabled effective and direct detection of Aβ (1–42) peptide. The efficacy of the ORC method had been exhibited in the polished Au surface by approximately 15% larger electro-active sites compared to the polished Au without ORC. The ORC polished structure demonstrated a rapid, accurate, precise, reproducible, and highly sensitive detection of Aβ (1–42) peptide with a low detection limit of 10.4 fg/mL and a wide linear range of 10−2 to 106 pg/mL. The proposed structure had been proven to have potential as an early-stage Alzheimer’s disease (AD) detection platform with low-cost fabrication and ease of operation.
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Ou W, Shen J, Lyu F, Xiao X, Zhou B, Lu J, Li YY. Facile Surfactant-, Reductant-, and Ag Salt-free Growth of Ag Nanoparticles with Controllable Size from 35 to 660 nm on Bulk Ag Materials. Chem Asian J 2021; 16:2249-2252. [PMID: 34101360 DOI: 10.1002/asia.202100384] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/06/2021] [Indexed: 11/12/2022]
Abstract
Morphologically and dimensionally controlled growth of Ag nanocrystals has long been plagued by surfactants or capping agents that complicate downstream applications, unstable Ag salts that impaired the reproducibility, and multistep seed injection that is troublesome and time-consuming. Here, we report a one-pot electro-chemical method to fast (∼2 min) produce Ag nanoparticles from commercial bulk Ag materials in a nitric acid solution, eliminating any need for surfactants or capping agents. Their size can be easily manipulated in an unprecedentedly wide range from 35 to 660 nm. Furthermore, the Ag nanoparticles are directly grown on the Ag substrate, highly desirable for promising applications such as catalysis and plasmonics. The mechanistic studies reveal that the concentration of Ag+ in the diffusion layer nearby the surface, controlled by the magnitude and duration of voltage, is critical in governing the nanoparticle formation (<1.3 mM) and its dimensional adjustability.
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Affiliation(s)
- Weihui Ou
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, P. R. China.,Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, P. R. China.,Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, P. R. China.,Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, P. R. China
| | - Junda Shen
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, P. R. China.,Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, P. R. China.,Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, P. R. China
| | - Fucong Lyu
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, P. R. China.,Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, 8 Yuexing 1st Road, Shenzhen Hi-Tech Industrial Park, Nanshan District, Shenzhen, P. R. China
| | - Xufen Xiao
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, P. R. China.,Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, P. R. China.,Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, P. R. China.,CityU-Shenzhen Futian Research Institute, Shenzhen, 518045, P. R. China
| | - Binbin Zhou
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, P. R. China.,Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, P. R. China.,Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, P. R. China.,Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, P. R. China
| | - Jian Lu
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, P. R. China.,Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, P. R. China.,Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, P. R. China.,Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, 8 Yuexing 1st Road, Shenzhen Hi-Tech Industrial Park, Nanshan District, Shenzhen, P. R. China.,CityU-Shenzhen Futian Research Institute, Shenzhen, 518045, P. R. China
| | - Yang Yang Li
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, P. R. China.,Centre of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, P. R. China.,Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, P. R. China.,Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, P. R. China.,Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, 8 Yuexing 1st Road, Shenzhen Hi-Tech Industrial Park, Nanshan District, Shenzhen, P. R. China.,CityU-Shenzhen Futian Research Institute, Shenzhen, 518045, P. R. China
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Rodriguez RS, O'Keefe TL, Froehlich C, Lewis RE, Sheldon TR, Haynes CL. Sensing Food Contaminants: Advances in Analytical Methods and Techniques. Anal Chem 2020; 93:23-40. [PMID: 33147958 DOI: 10.1021/acs.analchem.0c04357] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Rebeca S Rodriguez
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Tana L O'Keefe
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Clarice Froehlich
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Riley E Lewis
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Trever R Sheldon
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Christy L Haynes
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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Perez-Estebanez M, Hernandez S, Perales-Rondon JV, Gomez E, Heras A, Colina A. Chemical selectivity in electrochemical surface oxidation enhanced Raman scattering. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136560] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Purwidyantri A, Karina M, Hsu CH, Srikandace Y, Prabowo BA, Lai CS. Facile Bacterial Cellulose Nanofibrillation for the Development of a Plasmonic Paper Sensor. ACS Biomater Sci Eng 2020; 6:3122-3131. [DOI: 10.1021/acsbiomaterials.9b01890] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Agnes Purwidyantri
- Research Unit for Clean Technology, Indonesian Institute of Sciences, Bandung 40135, Indonesia
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
- Biosensor Group, Chang Gung University, Taoyuan 33302, Taiwan
| | - Myrtha Karina
- Research Unit for Clean Technology, Indonesian Institute of Sciences, Bandung 40135, Indonesia
| | - Chih-Hsien Hsu
- Department of Electronic Engineering, Chang Gung University, Taoyuan 33302, Taiwan
| | - Yoice Srikandace
- Research Unit for Clean Technology, Indonesian Institute of Sciences, Bandung 40135, Indonesia
| | - Briliant Adhi Prabowo
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
- Research Center for Electronics and Telecommunications, Indonesian Institute of Sciences, Bandung 40135, Indonesia
- Biosensor Group, Chang Gung University, Taoyuan 33302, Taiwan
| | - Chao-Sung Lai
- Department of Electronic Engineering, Chang Gung University, Taoyuan 33302, Taiwan
- Biosensor Group, Chang Gung University, Taoyuan 33302, Taiwan
- Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Department of Materials Engineering, Ming-Chi University of Technology, New Taipei City 24301, Taiwan
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Teng Y, Ren Z, Zhang Y, Wang Z, Pan Z, Shao K, She Y. Fabrication of liquid–liquid self-assembled Ag arrays on disposable screen-printed electrodes and their application in the identification and analysis of the adsorption behavior of organic carboxylates through in situ electrochemical surface-enhanced Raman scattering. NEW J CHEM 2020. [DOI: 10.1039/c9nj06000f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A disposable Ag array@screen-printed electrode (SPE) was fabricated for the identification and analysis of the adsorption behavior of organic carboxylates in in situ electrochemical surface-enhanced Raman scattering (EC-SERS).
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Affiliation(s)
- Yuanjie Teng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Zeyu Ren
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Yuchao Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Zhenni Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Zaifa Pan
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Kang Shao
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
| | - Yuanbin She
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310032
- China
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Wang J, Qiu C, Mu X, Pang H, Chen X, Liu D. Ultrasensitive SERS detection of rhodamine 6G and p-nitrophenol based on electrochemically roughened nano-Au film. Talanta 2019; 210:120631. [PMID: 31987213 DOI: 10.1016/j.talanta.2019.120631] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/30/2019] [Accepted: 12/07/2019] [Indexed: 12/14/2022]
Abstract
Quantitative analysis of organic pollutants in environmental water is an important issue for ecological environment and human health. In this paper, the quantitative analysis of rhodamine 6G (R6G) and p-nitrophenol (PNP) is performed by the surface enhanced Raman scattering (SERS) technology. The enhancement of Raman signals is achieved on the surface of an electrochemically roughened nano-Au film. The SERS performance depends on the microstructure of roughened nano-Au films, which is affected by the thickness of Au films and electrochemical roughening parameters. The structure-dependence of SERS performance is validated by finite element simulation of local electromagnetic field distribution. An obvious SERS effect of R6G with an enhancement factor of 108 is obtained on the roughened nano-Au film. A sensitive SERS detection of R6G with a linear range of 10-9-10-5 M and a detection limit of 10-11 M is realized. Moreover, a wide linear range of 10-9-10-3 M is obtained for the detection of PNP. The roughened nano-Au film is an effective substrate for the SERS detection of organic pollutants with high reproducibility and good stability. Therefore, the electrochemical technology in this study is expected to be a very promising method for the fabrication of high-performance SERS substrate.
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Affiliation(s)
- Jiangcai Wang
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China
| | - Cuicui Qiu
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China; Tianjin Research Institute for Advanced Equipment, Tsinghua University, Tianjin, 300300, China.
| | - Xijiao Mu
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China
| | - Hua Pang
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China
| | - Xinchun Chen
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China
| | - Dameng Liu
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China; Tianjin Research Institute for Advanced Equipment, Tsinghua University, Tianjin, 300300, China.
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Facile Fabrication of Micro/Nano Hierarchical SERS Sensor via Anisotropic Etching and Electrochemical Treatment for Malachite Green Detection. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9235237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We propose a facile method to produce micro/nano hierarchical surface-enhanced Raman scattering (SERS) active substrates using simple steps and inexpensive costs. The proposed SERS substrate is a silicon pyramid array covered by a nanostructured gold film (AuNS @ SiPA). Through finite element method (FEM) simulation, we showed that many strong local electric field enhancements (hot spots) were formed between the nano-gap of gold nanostructures. In addition, the micron-scale pyramid structure not only increases the sensing surface area of the sensor, but also helps trap light. By combining these micro and nano structures, the proposed micro/nano hierarchical SERS sensor exhibited high sensitivity. Experimental results confirmed that the AuNS @ SiPA substrate has high sensitivity. The SERS signal enhancement factor obtained from the Rhodamine 6G (R6G) probe molecules was as high as 1 × 107 and the SERS substrates were found to be able to detect a very low concentration of 0.01 nM malachite green (MG) solution. Therefore, this study provides a novel and practical method for fabricating SERS substrates that can facilitate the use of SERS in medicine, food safety, and biotechnology.
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Zhao X, Li M, Xu Z. Detection of Foodborne Pathogens by Surface Enhanced Raman Spectroscopy. Front Microbiol 2018; 9:1236. [PMID: 29946307 PMCID: PMC6005832 DOI: 10.3389/fmicb.2018.01236] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 05/22/2018] [Indexed: 01/21/2023] Open
Abstract
Food safety has become an important public health issue in both developed and developing countries. However, as the foodborne illnesses caused by the pollution of foodborne pathogens occurred frequently, which seriously endangered the safety and health of human beings. More importantly, the traditional techniques, such as PCR and enzyme-linked immunosorbent assay, are accurate and effective, but their pretreatments are complex and time-consuming. Therefore, how to detect foodborne pathogens quickly and sensitively has become the key to control food safety. Because of its sensitivity, rapidity, and non-destructive damage to the sample, the surface enhanced Raman scattering (SERS) is considered to be a powerful testing technology that is widely used to different fields. This review aims to give a systematic and comprehensive understanding of SERS for rapid detection of pathogen bacteria. First, the related concepts of SERS are stated, such as its work principal, active substrate, and biochemical origins of the detection of bacteria by SERS. Then the latest progress and applications in food safety, from detection and characterization of targets in label-free method to label method, is summarized. The advantages and limitations of different SERS substrates and methods are discussed. Finally, there are still several hurdles for the further development of SERS techniques into real-world applications. This review comes up with the perspectives on the future trends of the SERS technique in the field of foodborne pathogens detection and some problems to be solved urgently. Therefore, the purpose is mainly to understand the detection of foodborne pathogens and to make further emphasis on the importance of SERS techniques.
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Affiliation(s)
- Xihong Zhao
- Research Center for Environmental Ecology and Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Key Laboratory for Hubei Novel Reactor and Green Chemical Technology, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Mei Li
- Research Center for Environmental Ecology and Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Key Laboratory for Hubei Novel Reactor and Green Chemical Technology, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Zhenbo Xu
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
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Ikegami M, Hirano Y, Mie Y, Komatsu Y. Fabrication and characterization of nanoporous gold on microelectrode. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.11.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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