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Huang Y, Pu X, Qian H, Chuang CJ, Dong S, Wu J, Xue J, Cheng W, Ding S, Li S. Optical fiber surface plasmon resonance sensor using electroless-plated gold film for thrombin detection. Anal Bioanal Chem 2024; 416:1469-1483. [PMID: 38236393 DOI: 10.1007/s00216-024-05150-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/27/2023] [Accepted: 01/11/2024] [Indexed: 01/19/2024]
Abstract
This paper describes the simple and label-free detection of thrombin using optical fiber surface plasmon resonance (SPR) sensors based on gold films prepared by the cost-effective method of electroless plating. The plating conditions for simultaneously obtaining gold film on cylindrical core and end surfaces of an optical fiber suitable for measurement were optimized. The fabricated sensor exhibited a linear refractive index sensitivity of 2150 nm/RIU and 7.136 (a.u.)/RIU in the refractive index of 1.3329-1.3605 interrogated by resonance wavelength and amplitude methods respectively and a single wavelength monitoring method was proposed to investigate the sensing performance of this sensor. Polyadenine diblock and thiolated thrombin aptamers were immobilized on gold nanoparticles and gold films respectively to implement a sandwich optical fiber assay for thrombin. The developed optical fiber SPR sensors were successfully used in the determination of thrombin down to 0.56 nM over a wide range from 2 to 100 nM and showed good selectivity for thrombin, which indicated their potential clinical applications for biomedical samples.
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Affiliation(s)
- Yu Huang
- Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, 400714, China.
| | - Xiaoyin Pu
- Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, 400714, China
| | - Husun Qian
- Department of Laboratory Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Chin-Jung Chuang
- Department of Opto-Electronic Engineering, National Dong Hwa University, Hualien, 97401, Taiwan, China
| | - Shanshan Dong
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China
| | - Jiangling Wu
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China.
| | - Jianjiang Xue
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China
| | - Wei Cheng
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Shijia Ding
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Shengqiang Li
- Clinical Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, China.
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300000, China.
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2
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Ouyang Y, Chen Y, Shang J, Sun S, Wang X, Huan S, Xiong B, Zhang XB. Virus-like Plasmonic Nanoprobes for Quick Analysis of Antiviral Efficacy and Mutation-Induced Drug Resistance. Anal Chem 2023; 95:5009-5017. [PMID: 36893130 DOI: 10.1021/acs.analchem.2c05464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
As the pathogenic viruses and the variants of concern greatly threaten human health and global public safety, the development of convenient and robust strategies enabling rapid analysis of antiviral drug efficacy and mutation-induced resistance is quite important to prevent the spread of human epidemics. Herein, we introduce a simple single-particle detection strategy for quick analysis of anti-infective drugs against SARS-CoV-2 and mutation-induced drug resistance, by using the wild-type and mutant spike protein-functionalized AuNPs as virus-like plasmonic nanoprobes. Both the wild-type and mutant virus-like plasmonic nanoprobes can form core-satellite nanoassemblies with the ACE2@AuNPs, providing the opportunity to detect the drug efficacy and mutation-induced resistance by detecting the changes of nanoassemblies upon drug treatment with dark-field microscopy. As a demonstration, we applied the single-particle detection strategy for quantitative determination of antiviral efficacy and mutation-induced resistance of ceftazidime and rhein. The mutations in the receptor-binding domain of Omicron variant could lead to an increase of EC50 values of ceftazidime and rhein, formerly from 49 and 57 μM against wild-type SARS-CoV-2, to 121 and 340 μM, respectively. The mutation-induced remarkable decline in the inhibitory efficacy of drugs was validated with molecule docking analysis and virus-like plasmonic nanoprobe-based cell-incubation assay. Due to the generality and feasibility of the strategy for the preparation of virus-like plasmonic nanoprobes and single-particle detection, we anticipated that this simple and robust method is promising for the discovery and efficacy evaluation of anti-infective drugs against different pathogenic viruses.
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Affiliation(s)
- Yuzhi Ouyang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yancao Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jinhui Shang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shijie Sun
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xiangbin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shuangyan Huan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Bin Xiong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xiao-Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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3
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Fauzi NIM, Fen YW, Eddin FBK, Daniyal WMEMM. Structural and Optical Properties of Graphene Quantum Dots-Polyvinyl Alcohol Composite Thin Film and Its Potential in Plasmonic Sensing of Carbaryl. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4105. [PMID: 36432389 PMCID: PMC9698828 DOI: 10.3390/nano12224105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/13/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
In this study, graphene quantum dots (GQDs) and polyvinyl alcohol (PVA) composite was prepared and then coated on the surface of gold thin film via the spin coating technique. Subsequently, Fourier transform infrared spectroscopy (FT-IR), atomic force microscopy (AFM), and ultraviolet-visible spectroscopy (UV-Vis) were adopted to understand the structure, surface morphology, and optical properties of the prepared samples. The FT-IR spectral analysis revealed important bands, such as O-H stretching, C=O stretching, C-H stretching, and O=C=O stretching vibrations. The surface roughness of the GQDs-PVA composite thin film was found to be increased after exposure to carbaryl. On the other hand, the optical absorbance of the GQDs-PVA thin film was obtained and further analysis was conducted, revealing a band gap Eg value of 4.090 eV. The sensing potential of the thin film was analyzed using surface plasmon resonance (SPR) spectroscopy. The findings demonstrated that the developed sensor's lowest detection limit for carbaryl was 0.001 ppb, which was lower than that previously reported, i.e., 0.007 ppb. Moreover, other sensing performance parameters, such as full width at half maximum, detection accuracy, and signal-to-noise ratio, were also investigated to evaluate the sensor's efficiency.
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Affiliation(s)
- Nurul Illya Muhamad Fauzi
- Functional Nanotechnology Devices Laboratory, Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Yap Wing Fen
- Functional Nanotechnology Devices Laboratory, Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Faten Bashar Kamal Eddin
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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4
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Sacrificial gold coating enhances transport of liquid metal in pressurized fountain pen lithography. Sci Rep 2021; 11:4670. [PMID: 33633292 PMCID: PMC7907188 DOI: 10.1038/s41598-021-84065-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 02/11/2021] [Indexed: 11/08/2022] Open
Abstract
Liquid metals have attracted attention as functional components for moldable electronics, such as soft flexible connectors, wires or conductive ink. The relatively high surface tension (> 400 mN m−1) and the fact that liquid metals do not readily wet ceramic or oxide surfaces have led to devising unique techniques to spread the liquid and mold its shape. These techniques include surface modification, electrowetting and vacuum filling of channels. This work presents an injection technique based on pressurized fountain pen lithography with glass nanopipettes developed to directly pattern liquid metal on flat hard substrates. The liquid metals were eutectic alloys of Gallium, including Gallium-Indium (EGaIn), Gallium-Indium-Zinc and Gallium-Indium-Tin. The nanopipettes were coated internally with gold, acting as a sacrificial layer and facilitating the wetting of the pipette down to its pore, with an inner diameter of ~ 100–300 nm. By applying hydrodynamic pressure to the connected end of the pipette, the metal was extruded through the pore, forming long continuous (> 3 mm) and narrow (~ 1–15 µm) metal lines on silicon oxide and gold surfaces at room temperature and ambient conditions. With this robust platform, it is possible to pattern liquid metals on a variety of substrates and geometries down to the micron range.
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5
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Song S, Wang J, Song N, Di H, Liu D, Yu Z. Peptide interdigitation-induced twisted nanoribbons as chiral scaffolds for supramolecular nanozymes. NANOSCALE 2020; 12:2422-2433. [PMID: 31916547 DOI: 10.1039/c9nr09492j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Establishing reliable strategies for rationally manipulating the organization of peptide building blocks and thereby precisely creating chiral nanostructures is challenging, while meaningful toward development of advanced functional materials. Here we report on a peptide-interdigitating mechanism for the reliable self-assembly of lipid-inspired amphiphiles (LIPIAs) into robust twisted nanoribbons by grafting domains to one alkyl tail of lipids as an extended element. Peptide interdigitation promoted the self-assembly of LIPIAs into twisted or flat nanoribbons driven by antiparallel or parallel β-sheet hydrogen bonds, respectively, strongly associated with the connecting direction of the incorporated domains. We found that the LIPIAs containing N-terminus-connected domains with either bulky or small side chain groups formed twisted nanoribbons in a broad pH range, thus implying a sequence- and pH-independent strategy for creation of robust chiral nanostructures. Integrating the resulting twisted nanoribbons with gold nanoparticles led to supramolecular nanozymes exhibiting the excellent catalytic activity and enantioselectivity of asymmetric oxidation of 3,4-dihyroxy-phenylalanine molecules. Our finding demonstrates that the peptide-interdigitating mechanism is a reliable strategy for precise creation of chiral nanostructures serving as chiral matrices for supramolecular nanozymes with improved catalytic performance, thus potentially paving the way towards advanced biomimetic systems resembling natural systems.
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Affiliation(s)
- Shuxin Song
- Key Laboratory of Functional Polymer Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Jingyu Wang
- School of Biomedical Engineering and Technology, Tianjin Medical University, Tianjin 300070, China
| | - Na Song
- Key Laboratory of Functional Polymer Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Huixia Di
- College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, Nankai University, Tianjin 300071, China
| | - Dingbin Liu
- College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, Nankai University, Tianjin 300071, China
| | - Zhilin Yu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
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6
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Sun T, Wang D, Mirkin MV. Tunneling Mode of Scanning Electrochemical Microscopy: Probing Electrochemical Processes at Single Nanoparticles. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Tong Sun
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
| | - Dengchao Wang
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
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7
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Sun T, Wang D, Mirkin MV. Tunneling Mode of Scanning Electrochemical Microscopy: Probing Electrochemical Processes at Single Nanoparticles. Angew Chem Int Ed Engl 2018; 57:7463-7467. [DOI: 10.1002/anie.201801115] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/24/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Tong Sun
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
| | - Dengchao Wang
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
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8
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Archer RJ, Parnell AJ, Campbell AI, Howse JR, Ebbens SJ. A Pickering Emulsion Route to Swimming Active Janus Colloids. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700528. [PMID: 29619303 PMCID: PMC5826982 DOI: 10.1002/advs.201700528] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 09/22/2017] [Indexed: 05/06/2023]
Abstract
The field of active colloids is attracting significant interest to both enable applications and allow investigations of new collective colloidal phenomena. One convenient active colloidal system that has been much studied is spherical Janus particles, where a hemispherical coating of platinum decomposes hydrogen peroxide to produce rapid motion. However, at present producing these active colloids relies on a physical vapor deposition (PVD) process, which is difficult to scale and requires access to expensive equipment. In this work, it is demonstrated that Pickering emulsion masking combined with solution phase metallization can produce self-motile catalytic Janus particles. Comparison of the motion and catalytic activity with PVD colloids reveals a higher catalytic activity for a given thickness of platinum due to the particulate nature of the deposited coating. This Pickering emulsion based method will assist in producing active colloids for future applications and aid experimental research into a wide range of active colloid phenomena.
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Affiliation(s)
- Richard J. Archer
- Department of Chemical and Biological EngineeringThe University of SheffieldSheffieldS1 3JDUK
| | - Andrew J. Parnell
- Department of Physics and AstronomyThe University of SheffieldSheffieldS3 7RHUK
| | | | - Jonathan R. Howse
- Department of Chemical and Biological EngineeringThe University of SheffieldSheffieldS1 3JDUK
| | - Stephen J. Ebbens
- Department of Chemical and Biological EngineeringThe University of SheffieldSheffieldS1 3JDUK
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9
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Sun T, Wang D, Mirkin M. Electrochemistry at a single nanoparticle: from bipolar regime to tunnelling. Faraday Discuss 2018; 210:173-188. [DOI: 10.1039/c8fd00041g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper is concerned with long-distance interactions between an unbiased metal nanoparticle (NP) and a nanoelectrode employed as a tip in the scanning electrochemical microscope (SECM).
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Affiliation(s)
- Tong Sun
- Department of Chemistry and Biochemistry
- Queens College-CUNY
- Flushing
- USA
- The Graduate Center of CUNY
| | - Dengchao Wang
- Department of Chemistry and Biochemistry
- Queens College-CUNY
- Flushing
- USA
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry
- Queens College-CUNY
- Flushing
- USA
- The Graduate Center of CUNY
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10
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Kirichkov MV, Guda AA, Budnyk AP, Lastovina TA, Bugaev AL, Shapovalov VV, Rusalev YV, Chernyshev AV, Soldatov AV. In situ analysis of the formation steps of gold nanoparticles by oleylamine reduction. J STRUCT CHEM+ 2017. [DOI: 10.1134/s0022476617070186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Wang K, Zhao X, Li B, Wang K, Zhang X, Mao L, Ewing A, Lin Y. Ultrasonic-Aided Fabrication of Nanostructured Au-Ring Microelectrodes for Monitoring Transmitters Released from Single Cells. Anal Chem 2017; 89:8683-8688. [DOI: 10.1021/acs.analchem.7b02814] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Keqing Wang
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xu Zhao
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Bo Li
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Kai Wang
- Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Xin Zhang
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Lanqun Mao
- Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Andrew Ewing
- Department
of Chemistry and Chemical Engineering and Department of Chemistry and Molecular Biology, Chalmers University of Technology, Kemivägen 10, 41296 Gothenburg, Sweden
| | - Yuqing Lin
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
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12
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Gabardo CM, Adams-McGavin RC, Fung BC, Mahoney EJ, Fang Q, Soleymani L. Rapid prototyping of all-solution-processed multi-lengthscale electrodes using polymer-induced thin film wrinkling. Sci Rep 2017; 7:42543. [PMID: 28211898 PMCID: PMC5304207 DOI: 10.1038/srep42543] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/09/2017] [Indexed: 02/03/2023] Open
Abstract
Three-dimensional electrodes that are controllable over multiple lengthscales are very important for use in bioanalytical systems that integrate solid-phase devices with solution-phase samples. Here we present a fabrication method based on all-solution-processing and thin film wrinkling using smart polymers that is ideal for rapid prototyping of tunable three-dimensional electrodes and is extendable to large volume manufacturing. Although all-solution-processing is an attractive alternative to vapor-based techniques for low-cost manufacturing of electrodes, it often results in films suffering from low conductivity and poor substrate adhesion. These limitations are addressed here by using a smart polymer to create a conformal layer of overlapping wrinkles on the substrate to shorten the current path and embed the conductor onto the polymer layer. The structural evolution of these wrinkled electrodes, deposited by electroless deposition onto a nanoparticle seed layer, is studied at varying deposition times to understand its effects on structural parameters such as porosity, wrinkle wavelength and height. Furthermore, the effect of structural parameters on functional properties such as electro-active surface area and surface-enhanced Raman scattering is investigated. It is found that wrinkling of electroless-deposited thin films can be used to reduce sheet resistance, increase surface area, and enhance the surface-enhanced Raman scattering signal.
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Affiliation(s)
- Christine M. Gabardo
- McMaster University, School of Biomedical Engineering, Hamilton, L8S 4L7, Canada
| | | | - Barnabas C. Fung
- McMaster University, Department of Engineering Physics, Hamilton, L8S 4L7, Canada
| | - Eric J. Mahoney
- McMaster University, School of Biomedical Engineering, Hamilton, L8S 4L7, Canada
| | - Qiyin Fang
- McMaster University, School of Biomedical Engineering, Hamilton, L8S 4L7, Canada
- McMaster University, Department of Engineering Physics, Hamilton, L8S 4L7, Canada
| | - Leyla Soleymani
- McMaster University, School of Biomedical Engineering, Hamilton, L8S 4L7, Canada
- McMaster University, Department of Engineering Physics, Hamilton, L8S 4L7, Canada
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13
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Bandara YMNDY, Karawdeniya BI, Whelan JC, Ginsberg LDS, Dwyer JR. Solution-Based Photo-Patterned Gold Film Formation on Silicon Nitride. ACS APPLIED MATERIALS & INTERFACES 2016; 8:34964-34969. [PMID: 27936582 DOI: 10.1021/acsami.6b12720] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Silicon nitride fabricated by low-pressure chemical vapor deposition (LPCVD) to be silicon-rich (SiNx), is a ubiquitous insulating thin film in the microelectronics industry, and an exceptional structural material for nanofabrication. Free-standing <100 nm thick SiNx membranes are especially compelling, particularly when used to deliver forefront molecular sensing capabilities in nanofluidic devices. We developed an accessible, gentle, and solution-based photodirected surface metallization approach well-suited to forming patterned metal films as integral structural and functional features in thin-membrane-based SiNx devices-for use as electrodes or surface chemical functionalization platforms, for example-augmenting existing device capabilities and properties for a wide range of applications.
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Affiliation(s)
- Y M Nuwan D Y Bandara
- Department of Chemistry, University of Rhode Island , 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Buddini Iroshika Karawdeniya
- Department of Chemistry, University of Rhode Island , 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Julie C Whelan
- Department of Chemistry, University of Rhode Island , 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Lucas D S Ginsberg
- Department of Chemistry, University of Rhode Island , 140 Flagg Road, Kingston, Rhode Island 02881, United States
| | - Jason R Dwyer
- Department of Chemistry, University of Rhode Island , 140 Flagg Road, Kingston, Rhode Island 02881, United States
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14
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Nanda Kumar D, Alex SA, Chandrasekaran N, Mukherjee A. Acetylcholinesterase (AChE)-mediated immobilization of silver nanoparticles for the detection of organophosphorus pesticides. RSC Adv 2016; 6:64769-64777. [DOI: 10.1039/c6ra13185a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023] Open
Abstract
We report an enzyme-mediated biosensor with the immobilization of silver nanoparticles (AgNPs) for the detection of organophosphorus (OP) pesticides.
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Affiliation(s)
- D. Nanda Kumar
- Centre for Nanobiotechnology
- VIT University
- Vellore-632014
- India
| | - S. A. Alex
- Centre for Nanobiotechnology
- VIT University
- Vellore-632014
- India
| | | | - A. Mukherjee
- Centre for Nanobiotechnology
- VIT University
- Vellore-632014
- India
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15
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Chekini M, Cataldi U, Maroni P, Guénée L, Černý R, Bürgi T. Preparation of Anisotropic and Oriented Particles on a Flexible Substrate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:13221-13229. [PMID: 26575589 DOI: 10.1021/acs.langmuir.5b03524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Elongated plasmonic nanoparticles show superior optical properties when compared to spherical ones. Facile, versatile and cost-effective bottom-up approaches for fabrication of anisotropic nanoparticles in solution have been developed. However, fabrication of 2-D plasmonic templates from elongated nanoparticles with spatial arrangement at the surface is still a challenge. We used controlled seed-mediated growth in the presence of porous and functionalized surface of flexible polydimethylsiloxane (PDMS) templates to provide directional growth and formation of elongated gold nanoparticles (AuNPs). Atomic force microscopy (AFM) and spectroscopy revealed embedding of the particles within the functionalized porous surface of PDMS. Nanoparticles shapes were observed with transmission electron microscope (TEM), UV-Vis spectroscopy, and X-ray powder diffraction (XRPD) measurements, which revealed an overall orientation of particles at the surface. Anisotropic and oriented particles on a flexible substrate are of interest for sensing applications.
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Affiliation(s)
- Mahshid Chekini
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Ugo Cataldi
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Plinio Maroni
- Department of Inorganic and Analytic Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Laure Guénée
- Department of Quantum Matter Physics, Laboratory of Crystallography, University of Geneva , 24 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Radovan Černý
- Department of Quantum Matter Physics, Laboratory of Crystallography, University of Geneva , 24 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland
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16
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Fast and sensitive detection of protein concentration in mild environments. Talanta 2015; 135:102-7. [DOI: 10.1016/j.talanta.2014.12.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 12/25/2014] [Accepted: 12/27/2014] [Indexed: 11/23/2022]
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17
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Xu X, He H, Jin Y. Facile One-Step Photochemical Fabrication and Characterization of an Ultrathin Gold-Decorated Single Glass Nanopipette. Anal Chem 2015; 87:3216-21. [DOI: 10.1021/ac5034165] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaolong Xu
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
| | - Haili He
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yongdong Jin
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
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18
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Xia Y, Deng X, Yan S, Gao C, Ma C, Jin L. Nanoporous gold film: fabrication and role as a catalytic reactor. Dalton Trans 2015; 44:11929-34. [DOI: 10.1039/c5dt01659b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A thin NPG film with a thickness of 90 nm can be prepared on various substrates to form a catalytic reactor conveniently by using seed-mediated growth. Because of the nanoporous characterization, the film exhibits high catalytic activity both for oxidative and hydrogenation reactions.
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Affiliation(s)
- Youyi Xia
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan 243002
- People's Republic of China
| | - Xiang Deng
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan 243002
- People's Republic of China
| | - Shuxin Yan
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan 243002
- People's Republic of China
| | - Chang Gao
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan 243002
- People's Republic of China
| | - Cong Ma
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan 243002
- People's Republic of China
| | - Ling Jin
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan 243002
- People's Republic of China
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19
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Reddy BN, Kumar PN, Deepa M. A Poly(3,4-ethylenedioxypyrrole)-Au@WO3-Based Electrochromic Pseudocapacitor. Chemphyschem 2014; 16:377-89. [DOI: 10.1002/cphc.201402625] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Indexed: 11/09/2022]
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20
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Wang T, Fu Y, Tian H, Xiao Z, Hu J. Characterization of SH+ ions implantation-modified indium tin oxide films and its application for attachment of gold nanoparticles. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.07.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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He H, Xu X, Jin Y. Wet-Chemical Enzymatic Preparation and Characterization of Ultrathin Gold-Decorated Single Glass Nanopore. Anal Chem 2014; 86:4815-21. [DOI: 10.1021/ac404168s] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Haili He
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin P. R. China
- University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Xiaolong Xu
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin P. R. China
| | - Yongdong Jin
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin P. R. China
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22
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Li S, Wang L, Hao Y, Zhang L, Zhou B, Deng L, Liu YN. An ultrasensitive colorimetric aptasensor for ATP based on peptide/Au nanocomposites and hemin–G-quadruplex DNAzyme. RSC Adv 2014. [DOI: 10.1039/c4ra02823f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A self-assembled peptide nanosphere was firstly applied to construct biosensors. A new signal amplification strategy was proposed for colorimetric aptasensor based on PNS/AuNPs composite. The colorimetric aptasensor displayed an ultra-high sensitivity for ATP detection with a LOD of 1.35 pM.
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Affiliation(s)
- Shipeng Li
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - Liqiang Wang
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - Yuanqiang Hao
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - Lili Zhang
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - Binbin Zhou
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
- Hunan Institute of Food Quality Supervision Inspection and Research
- Changsha, PR China
| | - Liu Deng
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
| | - You-Nian Liu
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha, PR China
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23
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Mahouche-Chergui S, Guerrouache M, Carbonnier B, Chehimi MM. Polymer-immobilized nanoparticles. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.04.013] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Lei Y, Lin Y, Zheng Y, Dai M, Wang K, Lin X. Design of a Solid-State Electrochemiluminescence Biosensor for Detection of PML/RARα Fusion Gene Using Ru(bpy)${{{2+\hfill \atop 3\hfill}}}$-AuNPs Aggregations on Gold Electrode. ELECTROANAL 2013. [DOI: 10.1002/elan.201200623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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25
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Roper DK. Self-Assembly of Nanodroplets in Nanocomposite Materials in Nanodroplets Science and Technology. LECTURE NOTES IN NANOSCALE SCIENCE AND TECHNOLOGY 2013. [DOI: 10.1007/978-1-4614-9472-0_4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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26
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Yu Y, Chen X, Wei Y, Liu JH, Yu SH, Huang XJ. CdSe quantum dots enhance electrical and electrochemical signals of nanogap devices for bioanalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:3274-3281. [PMID: 22761032 DOI: 10.1002/smll.201200487] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Indexed: 06/01/2023]
Affiliation(s)
- Yang Yu
- Research Center for Biomimetic Functional, Materials and Sensing Devices, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China
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27
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Jin Y. Engineering plasmonic gold nanostructures and metamaterials for biosensing and nanomedicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:5153-65. [PMID: 22760939 DOI: 10.1002/adma.201200622] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Indexed: 05/10/2023]
Abstract
The fields of biosensing and nanomedicine have recently witnessed an explosion of interest and progress in the design and study of plasmonic Au nanostructures (p-AuNSs) or metamaterials geared towards a broad range of biological and biomedical applications. Due to their tunable and versatile plasmonic properties, such artificially engineered p-AuNSs and materials have the potential to push biosensor sensitivity towards the single-molecule detection limit, enabling new bioimaging modalities and new analytical techniques and tools capable of single-molecule detection, analysis and manipulation, and to revolutionize the diagnosis and treatment of many diseases, including cancers. This report summarizes and highlights recent major advances in the emerging field of bioapplication-oriented engineering of p-AuNSs and hybrids, focusing on design considerations and ways to carry them out. A brief overview of the optical properties of p-AuNSs is introduced, and then the importance of plasmonic engineering and future promising research directions and challenges in the field are discussed.
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Affiliation(s)
- Yongdong Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, PR China.
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28
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Zhang F, Zhang L, Mao SC, Chen P, Cui JC, Tang YG, Wang K, Lin L, Qi XD. Use of metal-enhanced fluorescence spectroscopy for detection of polycyclic aromatic hydrocarbons in diesel oil emulsions in artificial seawater. ENVIRONMENTAL TECHNOLOGY 2012; 33:2071-2075. [PMID: 23240201 DOI: 10.1080/09593330.2012.660643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this study, we employed the metal-enhanced fluorescence (MEF) method for the detection of polycyclic aromatic hydrocarbons (PAHs) in diesel oil emulsions in artificial seawater. Silver nanoparticles with an average diameter of 80 nm were immobilized onto silanized quartz as MEF substrates. Excited by illumination at 355 nm, a 4.6-fold increase in the fluorescence signals of PAHs was recorded when MEF substrates were used. The finite-difference time-domain (FDTD) method was used to provide mechanistic insights into the fluorescence enhancement. Monitoring water pollution has environmental significance and MEF spectroscopy is finding direct applications in this field.
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Affiliation(s)
- Feng Zhang
- Institute of Modern Optics, Nankai University, Tianjin 300071, China
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29
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Kim YP, Lee TG. Secondary Ions Mass Spectrometric Signal Enhancement of Peptides on Enlarged-Gold Nanoparticle Surfaces. Anal Chem 2012; 84:4784-8. [DOI: 10.1021/ac300336h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Yang X, Wang Y, Sui Y, Huang X, Cui T, Wang C, Liu B, Zou G, Zou B. Morphology-controlled synthesis of anisotropic wurtzite MnSe nanocrystals: optical and magnetic properties. CrystEngComm 2012. [DOI: 10.1039/c2ce25741f] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Lakbub J, Pouliwe A, Kamasah A, Yang C, Sun P. Electrochemical Behaviors of Single Gold Nanoparticles. ELECTROANAL 2011. [DOI: 10.1002/elan.201100318] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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32
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Orza A, Soritau O, Olenic L, Diudea M, Florea A, Rus Ciuca D, Mihu C, Casciano D, Biris AS. Electrically conductive gold-coated collagen nanofibers for placental-derived mesenchymal stem cells enhanced differentiation and proliferation. ACS NANO 2011; 5:4490-4503. [PMID: 21609025 DOI: 10.1021/nn1035312] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Gold-coated collagen nanofibers (GCNFs) were produced by a single-step reduction process and used for the growth and differentiation of human adult stem cells. The nanomaterials were characterized by a number of analytical techniques including electron microscopy and spectroscopy. They were found to be biocompatible and to improve the myocardial and neuronal differentiation process of the mesenchymal stem cells isolated from the placental chorionic component. The expression of specific differentiation markers (atrium, natriuretic peptide, actin F and actin monomer, glial fibrilary acidic protein, and neurofilaments) was investigated by immunocytochemistry.
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Affiliation(s)
- Anamaria Orza
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca, Romania.
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33
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Kajita T, Oyama M. Tuning of nanostructures of gold nanoparticles on indium tin oxide surfaces using a seed-mediated growth method. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2010.10.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Satija J, Bharadwaj R, Sai V, Mukherji S. Emerging use of nanostructure films containing capped gold nanoparticles in biosensors. Nanotechnol Sci Appl 2010; 3:171-88. [PMID: 24198481 DOI: 10.2147/nsa.s8981] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The localized surface plasmon resonance (LSPR) property of gold nanoparticles (GNP) has been exploited in a variety of optical sensor configurations including solution-based bioassays, paper-based colorimetric detection, surface-confined nanoparticle film/array-based sensing, etc. Amongst these, gold nanostructured films are of great interest because of their high stability, good reproducibility, robustness, and cost-effectiveness. The inherent optical characteristics of GNP, are attributed to parameters like size and shape (eg, nanospheres, nanorods, nanostars), eg, LSPR spectral location sensitivity to the local environment, composition (eg, gold-silver or silica-gold nanoshells), sensing volume, mesospacing, and multiplexing. These properties allow sensor tunability, enabling enhanced sensitivity and better performance of these biosensors. Ultrasensitive biosensor designs were realized using gold nanostructured films fabricated by bottom-up as well as top-down approaches. In this review, we describe the past, present, and future trends in the development of GNP-LSPR-based sensors, concentrating on both design (fabrication) and application. In the process, we have discussed various combinations of GNP size and shape, substrate, and application domains.
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Affiliation(s)
- Jitendra Satija
- Department of Bioscience and Bioengineering, IIT Bombay, Mumbai, Maharashtra, India
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35
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Features of light absorption of gold nanoparticles bound to the surface of silver by a bridge structure containing Zr(IV) ions. THEOR EXP CHEM+ 2010. [DOI: 10.1007/s11237-010-9157-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Flavel BS, Gross AJ, Garrett DJ, Nock V, Downard AJ. A simple approach to patterned protein immobilization on silicon via electrografting from diazonium salt solutions. ACS APPLIED MATERIALS & INTERFACES 2010; 2:1184-1190. [PMID: 20423137 DOI: 10.1021/am100020a] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A highly versatile method utilizing diazonium salt chemistry has been developed for the fabrication of protein arrays. Conventional ultraviolet mask lithography was used to pattern micrometer sized regions into a commercial photoresist on a highly doped p-type silicon (100) substrate. These patterned regions were used as a template for the electrochemical grafting of the in situ generated p-aminobenzenediazonium cation to form patterns of aminophenyl film on silicon. Immobilization of biomolecules was demonstrated by coupling biotin to the aminophenyl regions followed by reaction with fluorescently labeled avidin and visualization with fluorescence microscopy. This simple patterning strategy is promising for future application in biosensor devices.
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Affiliation(s)
- Benjamin S Flavel
- Department of Chemistry, University of Canterbury, Christchurch 8140, New Zealand.
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37
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OYAMA M. Recent Nanoarchitectures in Metal Nanoparticle-modified Electrodes for Electroanalysis. ANAL SCI 2010; 26:1-12. [DOI: 10.2116/analsci.26.1] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Effects of linker molecules on the attachment and growth of gold nanoparticles on indium tin oxide surfaces. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.12.055] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Stevens KN, Crespo-Biel O, van den Bosch EE, Dias AA, Knetsch ML, Aldenhoff YB, van der Veen FH, Maessen JG, Stobberingh EE, Koole LH. The relationship between the antimicrobial effect of catheter coatings containing silver nanoparticles and the coagulation of contacting blood. Biomaterials 2009; 30:3682-90. [DOI: 10.1016/j.biomaterials.2009.03.054] [Citation(s) in RCA: 140] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Accepted: 03/21/2009] [Indexed: 11/16/2022]
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40
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Preparation and stabilization of monodisperse colloidal gold by reduction with aminodextran. J Colloid Interface Sci 2009; 335:62-9. [DOI: 10.1016/j.jcis.2009.02.053] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Accepted: 02/26/2009] [Indexed: 11/18/2022]
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41
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Flavel BS, Yu J, Ellis AV, Shapter JG. Electroless plated gold as a support for carbon nanotube electrodes. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.11.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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42
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Lu ZX, Wood LF, Ohman DE, Collinson MM. Bio-inspired chemical reactors for growing aligned gold nanoparticle-like wires. Chem Commun (Camb) 2009:4200-2. [DOI: 10.1039/b906250e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Ron I, Friedman N, Cahen D, Sheves M. Selective electroless deposition of metal clusters on solid-supported bacteriorhodopsin: applications to orientation labeling and electrical contacts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2008; 4:2271-2278. [PMID: 19016493 DOI: 10.1002/smll.200800524] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Controlling the orientation of bacteriorhodopsin (bR) monolayers is an important step in studying and utilizing such membranes in a solid-state configuration in, for example, photoelectric applications. Macroscopic monolayers of bR have been fabricated in a variety of ways, but characterization of the distribution of the two possible orientations in which the membrane fragments can adsorb has not yet been addressed experimentally. Here, an approach is presented that labels only one of the membrane surfaces by electroless growth of metal nanoparticles on top of the solid-supported membranes. In this way, it is possible to observe which surface of the membranes is actually adsorbed to the substrate. How this technique serves to interface the membranes with a top metal contact for further electrical measurements is also demonstrated.
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Affiliation(s)
- Izhar Ron
- Department of Materials and Interfaces, Weizmann Institute of Science, P. O. Box 26, Rehovot 76100, Israel
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44
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Flavel BS, Yu J, Ellis AV, Quinton JS, Shapter JG. Solution chemistry approach to fabricate vertically aligned carbon nanotubes on gold wires: towards vertically integrated electronics. NANOTECHNOLOGY 2008; 19:445301. [PMID: 21832724 DOI: 10.1088/0957-4484/19/44/445301] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A monolayer of hexadecyltrichlorosilane, 3-aminopropyltriethoxysilane or 3-mercaptopropyltrimethoxysilane was self-assembled onto a p-type silicon (100) substrate to provide a resist for electrochemical anodization with an atomic force microscope cantilever. Silane treatment of the oxide nanostructures created by anodization lithography allowed for the creation of a chemically heterogeneous surface, containing regions of -NH(2) or -SH surrounded by -CH(3) functionality. These patterned regions of -NH(2) or -SH provided the point of attachment for citrate-stabilized gold colloid nanoparticles, which act as 'seed' particles for the electro-less deposition of gold. This has allowed the creation of gold wires on a silicon surface. Carbon nanotubes, with high carboxylic acid functionality, were vertically immobilized on the patterned gold wires with the use of a cysteamine monolayer and a condensation reaction. Such a material may prove useful in the creation of future vertically integrated electronic devices where it is desirable for electron transport to be in three dimensions and this electron transport is demonstrated with cyclic voltammetry.
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Affiliation(s)
- Benjamin S Flavel
- School of Chemistry, Physics and Earth Sciences, Flinders University, Sturt Road, Bedford Park, Adelaide, SA 5001, Australia
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45
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Layer-by-layer assembly of functional silica and Au nanoparticles for fabricating electrogenerated chemiluminescence sensor. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.04.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Jin Y, Girshevitz O, Friedman N, Ron I, Cahen D, Sheves M. Covalent attachment of bacteriorhodopsin monolayer to bromo-terminated solid supports: preparation, characterization, and protein stability. Chem Asian J 2008; 3:1146-55. [PMID: 18484563 DOI: 10.1002/asia.200700403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The interfacing of functional proteins with solid supports and the study of related protein-adsorption behavior are promising and important for potential device applications. In this study, we describe the preparation of bacteriorhodopsin (bR) monolayers on Br-terminated solid supports through covalent attachment. The bonding, by chemical reaction of the exposed free amine groups of bR with the pendant Br group of the chemically modified solid surface, was confirmed both by negative AFM results obtained when acetylated bR (instead of native bR) was used as a control and by weak bands observed at around 1610 cm(-1) in the FTIR spectrum. The coverage of the resultant bR monolayer was significantly increased by changing the pH of the purple-membrane suspension from 9.2 to 6.8. Although bR, which is an exceptionally stable protein, showed a pronounced loss of its photoactivity in these bR monolayers, it retained full photoactivity after covalent binding to Br-terminated alkyls in solution. Several characterization methods, including atomic force microscopy (AFM), contact potential difference (CPD) measurements, and UV/Vis and Fourier transform infrared (FTIR) spectroscopy, verified that these bR monolayers behaved significantly different from native bR. Current-voltage (I-V) measurements (and optical absorption spectroscopy) suggest that the retinal chromophore is probably still present in the protein, whereas the UV/Vis spectrum suggests that it lacks the characteristic covalent protonated Schiff base linkage. This finding sheds light on the unique interactions of biomolecules with solid surfaces and may be significant for the design of protein-containing device structures.
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Affiliation(s)
- Yongdong Jin
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel.
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47
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Guo B, Zhao S, Han G, Zhang L. Continuous thin gold films electroless deposited on fibrous mats of polyacrylonitrile and their electrocatalytic activity towards the oxidation of methanol. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.02.060] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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48
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Jin Y, Friedman N, Sheves M, Cahen D. Effect of metal-molecule contact roughness on electronic transport: bacteriorhodopsin-based, metal-insulator-metal planar junctions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:5622-5626. [PMID: 18399666 DOI: 10.1021/la703859a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Molecular electronics is very much about contacts, and thus understanding of any generic contact effect is essential to its advance. For example, it is still not obvious in how far variations in electrode roughness of macroscopic contacts can lead to rectification. Here we report an investigation of this contact effect on electronic transport properties using metal-insulator-metal planar junctions with a 5 nm thick bacteriorhodopsin-based insulator as model system. We demonstrate that the experimentally observed rectifying behavior is not an intrinsic property of the molecules used, but rather of the local contact quality. Even a slight increase in surface roughness of the bottom electrode gives rise to distinct rectifying behavior in these and, by extrapolation, possibly other molecular junctions.
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Affiliation(s)
- Yongdong Jin
- Department of Organic Chemistry, Weizman Institute of Science, Rehovot 76100, Israel.
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49
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Hu X, Dong S. Metal nanomaterials and carbon nanotubes—synthesis, functionalization and potential applications towards electrochemistry. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b713255g] [Citation(s) in RCA: 152] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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50
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Zhu H, Bao L, Mahurin SM, Baker GA, Hagaman EW, Dai S. Seeded growth of robust SERS-active 2D Au@Ag nanoparticulate films. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b719180d] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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