1
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Lipińska W, Olejnik A, Janik M, Brodowski M, Sapiega K, Pierpaoli M, Siuzdak K, Bogdanowicz R, Ryl J. Texture or Linker? Competitive Patterning of Receptor Assembly toward Ultra-Sensitive Impedimetric Detection of Viral Species at Gold-Nanotextured Titanium Surfaces. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:9584-9593. [PMID: 37552778 PMCID: PMC10189554 DOI: 10.1021/acs.jpcc.3c00697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/27/2023] [Indexed: 08/10/2023]
Abstract
In this work, we study the electrodes with a periodic matrix of gold particles pattered by titanium dimples and modified by 3-mercaptopropionic acid (MPA) followed by CD147 receptor grafting for specific impedimetric detection of SARS-CoV-2 viral spike proteins. The synergistic DFT and MM/MD modeling revealed that MPA adsorption geometries on the Au-Ti surface have preferential and stronger binding patterns through the carboxyl bond inducing an enhanced surface coverage with CD147. Control of bonding at the surface is essential for oriented receptor assembling and boosted sensitivity. The complex Au-Ti electrode texture along with optimized MPA concentration is a crucial parameter, enabling to reach the detection limit of ca. 3 ng mL-1. Scanning electrochemical microscopy imaging and quantum molecular modeling were performed to understand the electrochemical performance and specific assembly of MPA displaying a free stereo orientation and not disturbed by direct interactions with closely adjacent receptors. This significantly limits nonspecific interceptor reactions, strongly decreasing the detection of receptor-binding domain proteins by saturation of binding groups. This method has been demonstrated for detecting the SARS virus but can generally be applied to a variety of protein-antigen systems. Moreover, the raster of the pattern can be tuned using various anodizing processes at the titania surfaces.
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Affiliation(s)
- Wiktoria Lipińska
- Centre for Plasma and Laser Engineering, The Szewalski
Institute of Fluid-Flow Machinery, Polish Academy of Sciences,
Fiszera 14, Gdańsk 80-231, Poland
| | - Adrian Olejnik
- Centre for Plasma and Laser Engineering, The Szewalski
Institute of Fluid-Flow Machinery, Polish Academy of Sciences,
Fiszera 14, Gdańsk 80-231, Poland
- Department of Metrology and Optoelectronics, Faculty
of Electronics, Telecommunications and Informatics, Gdańsk University
of Technology, Narutowicza 11/12, Gdańsk 80-233,
Poland
| | - Monika Janik
- Department of Metrology and Optoelectronics, Faculty
of Electronics, Telecommunications and Informatics, Gdańsk University
of Technology, Narutowicza 11/12, Gdańsk 80-233,
Poland
- Institute of Microelectronics and Optoelectronics,
Faculty of Electronics and Information Technology, Warsaw University of
Technology, Koszykowa 75, Warsaw 00-662, Poland
| | - Mateusz Brodowski
- Institute of Nanotechnology and Materials Engineering
and Advanced Materials Center, Gdańsk University of
Technology, Narutowicza 11/12, Gdańsk 80-233,
Poland
| | - Karolina Sapiega
- Institute of Nanotechnology and Materials Engineering
and Advanced Materials Center, Gdańsk University of
Technology, Narutowicza 11/12, Gdańsk 80-233,
Poland
| | - Mattia Pierpaoli
- Department of Metrology and Optoelectronics, Faculty
of Electronics, Telecommunications and Informatics, Gdańsk University
of Technology, Narutowicza 11/12, Gdańsk 80-233,
Poland
| | - Katarzyna Siuzdak
- Centre for Plasma and Laser Engineering, The Szewalski
Institute of Fluid-Flow Machinery, Polish Academy of Sciences,
Fiszera 14, Gdańsk 80-231, Poland
| | - Robert Bogdanowicz
- Department of Metrology and Optoelectronics, Faculty
of Electronics, Telecommunications and Informatics, Gdańsk University
of Technology, Narutowicza 11/12, Gdańsk 80-233,
Poland
| | - Jacek Ryl
- Institute of Nanotechnology and Materials Engineering
and Advanced Materials Center, Gdańsk University of
Technology, Narutowicza 11/12, Gdańsk 80-233,
Poland
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2
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Disposable label-free electrochemical immunosensor based on prussian blue nanocubes for four breast cancer tumor markers. Talanta 2023; 255:124229. [PMID: 36641867 DOI: 10.1016/j.talanta.2022.124229] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/21/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022]
Abstract
A compact and low-cost multi-electrode array (MEA) is presented, comprising four working electrodes with shared reference and auxiliary electrodes. Prussian blue was electrodeposited on the MEA using chronoamperometry with a positive potential of 0.3 V. Prussian blue nanocubes (PBNCs) were formed, which were observed using scanning electron microscopy. The precision of the four working electrodes was demonstrated using ferric/ferro cyanide (RSD <5.8%). The surface roughness of the working electrodes of the fabricated MEA was investigated by atomic force microscopy and compared with that of a commercial MEA. The PBNCs were the platform for a label-free immunosensor that detected four breast cancer tumor markers (CEA, CA125, CA153, and CA199) using specific antibodies. The processes of antibody immobilization were investigated using cyclic voltammetry and electrochemical impedance spectroscopy. The immunosensor was evaluated using real human serum samples, yielding acceptable recoveries (95.1-104.1%, RSD < 3.9) for the four tumor markers. These findings confirmed that our label-free immunosensor based on PBNCs could be a promising device for point-of-care testing and could pave the way for the establishment of new platforms for the screening of various breast cancer tumor markers.
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Manaf BAA, Hong SP, Rizwan M, Arshad F, Gwenin C, Ahmed MU. Recent advancement in sensitive detection of carcinoembryonic antigen using nanomaterials based immunosensors. SURFACES AND INTERFACES 2023; 36:102596. [DOI: 10.1016/j.surfin.2022.102596] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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4
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The electrochemical behaviour of suspended Prussian Blue nanoparticles in forced convection conditions. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Brett CMA. Electrochemical Impedance Spectroscopy in the Characterisation and Application of Modified Electrodes for Electrochemical Sensors and Biosensors. Molecules 2022; 27:1497. [PMID: 35268599 PMCID: PMC8911593 DOI: 10.3390/molecules27051497] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 02/19/2022] [Accepted: 02/21/2022] [Indexed: 01/06/2023] Open
Abstract
Electrochemical impedance spectroscopy is finding increasing use in electrochemical sensors and biosensors, both in their characterisation, including during successive phases of sensor construction, and in application as a quantitative determination technique. Much of the published work continues to make little use of all the information that can be furnished by full physical modelling and analysis of the impedance spectra, and thus does not throw more than a superficial light on the processes occurring. Analysis is often restricted to estimating values of charge transfer resistances without interpretation and ignoring other electrical equivalent circuit components. In this article, the important basics of electrochemical impedance for electrochemical sensors and biosensors are presented, focussing on the necessary electrical circuit elements. This is followed by examples of its use in characterisation and in electroanalytical applications, at the same time demonstrating how fuller use can be made of the information obtained from complete modelling and analysis of the data in the spectra, the values of the circuit components and their physical meaning. The future outlook for electrochemical impedance in the sensing field is discussed.
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6
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Aslan S. An electrochemical immunosensor modified with titanium IV oxide/polyacrylonitrile nanofibers for the determination of a carcinoembryonic antigen. NEW J CHEM 2021. [DOI: 10.1039/d0nj05385f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A highly sensitive electrochemical carcinoembryonic antigen immunosensor based on TiO2np/polyacrylonitrile nanofibers electrospun on the surface of the discharged battery coal electrode.
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Affiliation(s)
- Sema Aslan
- Department of Chemistry
- Faculty of Science
- Mugla Sitki Kocman University
- Muğla
- Turkey
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7
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Lee PK, Woi PM. Current Innovations of Metal Hexacyanoferrates-Based Nanocomposites toward Electrochemical Sensing: Materials Selection and Synthesis Methods. Crit Rev Anal Chem 2019; 50:393-404. [PMID: 31335176 DOI: 10.1080/10408347.2019.1642733] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Mixed valence transition metal hexacyanoferrates (MeHCF)-Prussian blue and its analogs receive enormous research interest in the electrochemical sensing field. In recent years, conducting materials such as conducting polymer, carbon nanomaterial, and noble metals have been used to form nanocomposites with MeHCF. The scope of this review offers the reasons behind the preparation of various MeHCF based nanocomposite toward electrochemical detection. We primarily focus on the current progress of the development of MEHCF-based nanocomposites. The synthesis methods for these nanocomposites are also reviewed and discussed.
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Affiliation(s)
- Pui Kee Lee
- Department of Chemistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Pei Meng Woi
- Department of Chemistry, University of Malaya, Kuala Lumpur, Malaysia.,Univerisity Malaya Centre of Ionic Liquids (UMCiL), University of Malaya, Kuala Lumpur, Malaysia
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8
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Maurin-Pasturel G, Mamontova E, Palacios MA, Long J, Allouche J, Dupin JC, Guari Y, Larionova J. Gold@Prussian blue analogue core-shell nanoheterostructures: their optical and magnetic properties. Dalton Trans 2019; 48:6205-6216. [PMID: 30982839 DOI: 10.1039/c9dt00141g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Au@Prussian-Blue Analogue (PBA) shell nanoheterostructures are multifunctional nano-objects combining optical properties (surface plasmon resonance) of the Au core and magnetic properties of the PBA shell. We report in this article a series of new Au core@PBA shell nano-objects with different PBA shells: Au@K/Co/[FeII(CN)6] (2) and Au@K/Ni/[CrIII(CN)6]:[FeII(CN)6] (3) single PBA shell, as well as Au@K/Ni/[FeII(CN)6]@K/Ni/[FeIII(CN)6] (4) double PBA shell and Au@K/Ni/[FeII(CN)6]@K/Ni/[FeIII(CN)6]@K/Ni/[CrIII(CN)6] (5) triple PBA shell systems. The position and intensity of the Au SPR band, as well as the magnetic behaviour of the nanoheterostructures, are strongly affected by the shell composition and its thickness.
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Affiliation(s)
- Guillaume Maurin-Pasturel
- Institut Charles Gerhardt Montpellier, UMR 5253, Ingénierie Moléculaire et Nano-Objets, Université de Montpellier, ENSCM, CNRS, Place E. Bataillon, 34095 Montpellier Cedex 5, France.
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9
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Gautam M, Poudel K, Yong CS, Kim JO. Prussian blue nanoparticles: Synthesis, surface modification, and application in cancer treatment. Int J Pharm 2018; 549:31-49. [PMID: 30053487 DOI: 10.1016/j.ijpharm.2018.07.055] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/22/2018] [Accepted: 07/23/2018] [Indexed: 12/17/2022]
Abstract
This review outlines recently developed Prussian blue nanoparticle (PB NPs)-based multimodal imaging-guided chemo-photothermal strategies for cancer diagnosis and treatment in order to provide insight into the future of the field. The primary limitation of existing therapeutics is the lack of selectivity in drug delivery: they target healthy and cancerous cells alike. In this paper, we provide a thorough review of diverse synthetic and surface engineering techniques for PB NP fabrication. We have elucidated the various targeting approaches employed to deliver the therapeutic and imaging ligands into the tumor area, and outlined methods for enhancement of the tumor ablative ability of the NPS, including several important combinatorial approaches. In addition, we have summarized different in vitro and in vivo effects of PB NP-based therapies used to overcome both systemic and tumor-associated local barriers. An important new approach - PB NP-based immune drug delivery, which is an exciting and promising strategy to overcome cancer resistance and tumor recurrence - has been discussed. Finally, we have discussed the current understanding of the toxicological effects of PB NPs and PB NP-based therapeutics. We conclude that PB NP-based multimodal imaging-guided chemo-photothermal therapy offers new treatment strategies to overcome current hurdles in cancer diagnosis and treatment.
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Affiliation(s)
- Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea.
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10
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Construction of a probe-immobilized molecularly imprinted electrochemical sensor with dual signal amplification of thiol graphene and gold nanoparticles for selective detection of tebuconazole in vegetable and fruit samples. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.04.128] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Collisions of suspended Prussian Blue nanoparticles with a rotating disc electrode. Electrochem commun 2018. [DOI: 10.1016/j.elecom.2017.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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12
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Zakaria MB, Chikyow T. Recent advances in Prussian blue and Prussian blue analogues: synthesis and thermal treatments. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.09.014] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Jia H, Yang T, Zuo Y, Wang W, Xu J, Lu L, Li P. Immunosensor for α-fetoprotein based on a glassy carbon electrode modified with electrochemically deposited N-doped graphene, gold nanoparticles and chitosan. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2407-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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14
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Maurin-Pasturel G, Long J, Palacios MA, Guérin C, Charnay C, Willinger MG, Trifonov AA, Larionova J, Guari Y. Engineered Au Core@Prussian Blue Analogous Shell Nanoheterostructures: Their Magnetic and Optical Properties. Chemistry 2017; 23:7483-7496. [DOI: 10.1002/chem.201605903] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Guillaume Maurin-Pasturel
- ICGM (UMR5253), Univ. Montpellier, CNRS, ENSCM; Université de Montpellier, Site Triolet; Place E. Bataillon 34095 Montpellier Cedex 5 France
| | - Jérôme Long
- ICGM (UMR5253), Univ. Montpellier, CNRS, ENSCM; Université de Montpellier, Site Triolet; Place E. Bataillon 34095 Montpellier Cedex 5 France
| | - Maria A. Palacios
- ICGM (UMR5253), Univ. Montpellier, CNRS, ENSCM; Université de Montpellier, Site Triolet; Place E. Bataillon 34095 Montpellier Cedex 5 France
| | - Christian Guérin
- ICGM (UMR5253), Univ. Montpellier, CNRS, ENSCM; Université de Montpellier, Site Triolet; Place E. Bataillon 34095 Montpellier Cedex 5 France
| | - Clarence Charnay
- ICGM (UMR5253), Univ. Montpellier, CNRS, ENSCM; Université de Montpellier, Site Triolet; Place E. Bataillon 34095 Montpellier Cedex 5 France
| | - Marc-Georg Willinger
- Fritz Haber Institute of the Max Planck Society; Department of Inorganic Chemistry; Faradayweg 4-6 14195 Berlin Germany
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences; Tropinina 49, GSO-445 630950 Nizhny Novgorod Russia
| | - Joulia Larionova
- ICGM (UMR5253), Univ. Montpellier, CNRS, ENSCM; Université de Montpellier, Site Triolet; Place E. Bataillon 34095 Montpellier Cedex 5 France
| | - Yannick Guari
- ICGM (UMR5253), Univ. Montpellier, CNRS, ENSCM; Université de Montpellier, Site Triolet; Place E. Bataillon 34095 Montpellier Cedex 5 France
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Hasanzadeh M, Shadjou N. What are the reasons for low use of graphene quantum dots in immunosensing of cancer biomarkers? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:1313-1326. [DOI: 10.1016/j.msec.2016.11.068] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/09/2016] [Accepted: 11/17/2016] [Indexed: 11/29/2022]
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16
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Hasanzadeh M, Shadjou N. Advanced nanomaterials for use in electrochemical and optical immunoassays of carcinoembryonic antigen. A review. Mikrochim Acta 2017. [DOI: 10.1007/s00604-016-2066-2] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Feng T, Chen X, Qiao X, Sun Z, Wang H, Qi Y, Hong C. Graphene oxide supported rhombic dodecahedral Cu2O nanocrystals for the detection of carcinoembryonic antigen. Anal Biochem 2015; 494:101-7. [PMID: 26596552 DOI: 10.1016/j.ab.2015.11.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 11/03/2015] [Accepted: 11/06/2015] [Indexed: 12/21/2022]
Abstract
In this work, a simple electrochemical immunosensor was developed for the detection of carcinoembryonic antigen (CEA) based on rhombic dodecahedral Cu2O nanocrystals-graphene oxide-gold nanoparticles (rCu2O-GO-AuNPs). GO as the template and surfactant resulting in rCu2O exhibit improved rhombic dodecahedral structure uniformity and excellent electrochemical performance. Moreover, GO was found to be able to effectively improve the long stability of rCu2O on the electrode response. Under optimal conditions, the immunosensor showed a low limit of detection (0.004 ng ml(-1)) and a large linear range (0.01-120 ng ml(-1)). This work presents a potential alternative for the diagnostic applications of GO-supported special morphology materials in biomedicine and biosensors.
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Affiliation(s)
- Taotao Feng
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Production and Construction Corps, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi 832003, People's Republic of China
| | - Xiaoyu Chen
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Production and Construction Corps, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi 832003, People's Republic of China
| | - Xiuwen Qiao
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Production and Construction Corps, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi 832003, People's Republic of China
| | - Zhao Sun
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Production and Construction Corps, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi 832003, People's Republic of China
| | - Haining Wang
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Production and Construction Corps, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi 832003, People's Republic of China
| | - Yu Qi
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Production and Construction Corps, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi 832003, People's Republic of China.
| | - Chenglin Hong
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Production and Construction Corps, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi 832003, People's Republic of China.
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18
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Affiliation(s)
- Wen Zhou
- College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Recognition and Biosensing, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Xia Gao
- College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Recognition and Biosensing, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Dingbin Liu
- College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Recognition and Biosensing, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
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19
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Li J, Jiang Y, Zhai Y, Liu H, Li L. Prussian Blue/Reduced Graphene Oxide Composite for the Amperometric Determination of Dopamine and Hydrogen Peroxide. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1052141] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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20
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Antolini E. Composite materials for polymer electrolyte membrane microbial fuel cells. Biosens Bioelectron 2015; 69:54-70. [DOI: 10.1016/j.bios.2015.02.013] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 01/27/2015] [Accepted: 02/07/2015] [Indexed: 12/30/2022]
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21
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Zhu W, Liu K, Sun X, Wang X, Li Y, Cheng L, Liu Z. Mn2+-doped prussian blue nanocubes for bimodal imaging and photothermal therapy with enhanced performance. ACS APPLIED MATERIALS & INTERFACES 2015; 7:11575-11582. [PMID: 25965554 DOI: 10.1021/acsami.5b02510] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Prussian blue (PB) as a clinically adapted agent recently has drawn much attention in cancer theranostics for potential applications in magnetic resonance (MR) imaging as well as photothermal cancer treatment. In this work, we take a closer look at the imaging and therapy performance of PB agents once they are doped with Mn2+. It is found that Mn2+-doped PB nanocubes exhibit increased longitudinal relaxivity along with enhanced optical absorption red-shifted to the near-infrared (NIR) region. Those properties make PB:Mn nanocubes with appropriate surface coatings rather attractive agents for biomedical imaging and cancer therapy, which have been successfully demonstrated in our in vivo experiments for effectively tumor ablation.
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Affiliation(s)
| | | | | | - Xin Wang
- §Department of Radiology the First Affiliated Hospital of Soochow University Suzhou, Jiangsu 215006, China
| | - Yonggang Li
- §Department of Radiology the First Affiliated Hospital of Soochow University Suzhou, Jiangsu 215006, China
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Li Y, Han J, Chen R, Ren X, Wei Q. Label electrochemical immunosensor for prostate-specific antigen based on graphene and silver hybridized mesoporous silica. Anal Biochem 2015; 469:76-82. [DOI: 10.1016/j.ab.2014.09.022] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 09/24/2014] [Accepted: 09/30/2014] [Indexed: 10/24/2022]
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23
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Samanman S, Numnuam A, Limbut W, Kanatharana P, Thavarungkul P. Highly-sensitive label-free electrochemical carcinoembryonic antigen immunosensor based on a novel Au nanoparticles–graphene–chitosan nanocomposite cryogel electrode. Anal Chim Acta 2015; 853:521-532. [DOI: 10.1016/j.aca.2014.10.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 08/30/2014] [Accepted: 10/06/2014] [Indexed: 01/05/2023]
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24
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Bai X, Shiu KK. Spontaneous Deposition of Prussian Blue on Reduced Graphene Oxide - Gold Nanoparticles Composites for the Fabrication of Electrochemical Biosensors. ELECTROANAL 2014. [DOI: 10.1002/elan.201400358] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yang P, Li X, Wang L, Wu Q, Chen Z, Lin X. Sandwich-type amperometric immunosensor for cancer biomarker based on signal amplification strategy of multiple enzyme-linked antibodies as probes modified with carbon nanotubes and concanavalin A. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.08.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Label-free electrochemical immunosensor based on gold–silicon carbide nanocomposites for sensitive detection of human chorionic gonadotrophin. Biosens Bioelectron 2014; 57:199-206. [DOI: 10.1016/j.bios.2014.02.019] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 02/08/2014] [Accepted: 02/10/2014] [Indexed: 02/03/2023]
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27
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Simultaneous formation of Prussian Blue and copper hexacyanoferrate from a solution of Cu2+ and K3[Fe(CN)6] in presence of HAuCl4. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.07.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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A novel electrochemical biosensor based on the hemin-graphene nano-sheets and gold nano-particles hybrid film for the analysis of hydrogen peroxide. Anal Chim Acta 2013; 788:24-31. [DOI: 10.1016/j.aca.2013.06.016] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 06/14/2013] [Accepted: 06/16/2013] [Indexed: 11/23/2022]
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29
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Feng R, Zhang Y, Ma H, Wu D, Fan H, Wang H, Li H, Du B, Wei Q. Ultrasensitive non-enzymatic and non-mediator electrochemical biosensor using nitrogen-doped graphene sheets for signal amplification and nanoporous alloy as carrier. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.02.093] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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30
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Sun X, Ma Z. Electrochemical immunosensor based on nanoporpus gold loading thionine for carcinoembryonic antigen. Anal Chim Acta 2013; 780:95-100. [PMID: 23680556 DOI: 10.1016/j.aca.2013.04.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 02/28/2013] [Accepted: 04/08/2013] [Indexed: 12/20/2022]
Abstract
Nanoporous gold (NPG) has recently received considerable attention in analytical electrochemistry because of its good conductivity and large specific surface area. A facile layer-by-layer assembly technique fabricated NPG was used to construct an electrochemical immunosensor for carcinoembryonic antigen (CEA). NPG was fabricated on glassy carbon (GC) electrode by alternatively assembling gold nanoparticles (AuNPs) and silver nanoparticles (AgNPs) using 1,4-benzenedimethanethiol as a cross-linker, and then AgNPs were dissolved with HNO3. The thionine was absorbed into the NPG and then gold nanostructure was electrodeposited on the surface through the electrochemical reduction of gold chloride tetrahydrate (HAuCl4). The anti-CEA was directly adsorbed on gold nanostructure fixed on the GC electrode. The linear range of the immunosensor was from 10 pg mL(-1) to 100 ng mL(-1) with a detection limit of 3 pg mL(-1) (S/N=3). The proposed immunosensor has high sensitivity, wide linear range, low detection limit, and good selectivity. The present method could be widely applied to construct other immunosensors.
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Affiliation(s)
- Xiaobin Sun
- Department of Chemistry, Capital Normal University, Beijing 100048, China
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31
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Label-free electrochemical immunosensor for the carcinoembryonic antigen using a glassy carbon electrode modified with electrodeposited Prussian Blue, a graphene and carbon nanotube assembly and an antibody immobilized on gold nanoparticles. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-0985-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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32
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Uk Lee H, Young Yoo H, Lkhagvasuren T, Seok Song Y, Park C, Kim J, Wook Kim S. Enzymatic fuel cells based on electrodeposited graphite oxide/cobalt hydroxide/chitosan composite–enzymeelectrode. Biosens Bioelectron 2013; 42:342-8. [DOI: 10.1016/j.bios.2012.10.020] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 10/05/2012] [Accepted: 10/05/2012] [Indexed: 11/15/2022]
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33
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Silver–graphene oxide nanocomposites as redox probes for electrochemical determination of α-1-fetoprotein. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.10.081] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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34
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Sun X, Li Q, Wang X, Du S. Amperometric Immunosensor Based on Gold Nanoparticles/Fe3O4-FCNTs-CS Composite Film Functionalized Interface for Carbofuran Detection. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.677782] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Saha K, Agasti SS, Kim C, Li X, Rotello VM. Gold nanoparticles in chemical and biological sensing. Chem Rev 2012; 112:2739-79. [PMID: 22295941 PMCID: PMC4102386 DOI: 10.1021/cr2001178] [Citation(s) in RCA: 2759] [Impact Index Per Article: 229.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Krishnendu Saha
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Sarit S. Agasti
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Chaekyu Kim
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Xiaoning Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
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36
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Mao K, Wu D, Li Y, Ma H, Ni Z, Yu H, Luo C, Wei Q, Du B. Label-free electrochemical immunosensor based on graphene/methylene blue nanocomposite. Anal Biochem 2012; 422:22-7. [DOI: 10.1016/j.ab.2011.12.047] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 11/29/2011] [Accepted: 12/29/2011] [Indexed: 11/30/2022]
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37
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Affiliation(s)
- Danielle W. Kimmel
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, VU Station B 351822, Nashville, TN 37235-1822
| | - Gabriel LeBlanc
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, VU Station B 351822, Nashville, TN 37235-1822
| | - Mika E. Meschievitz
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, VU Station B 351822, Nashville, TN 37235-1822
| | - David E. Cliffel
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, VU Station B 351822, Nashville, TN 37235-1822
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38
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Li Y, Cheng P, Gong J, Fang L, Deng J, Liang W, Zheng J. Amperometric immunosensor for the detection of Escherichia coli O157:H7 in food specimens. Anal Biochem 2011; 421:227-33. [PMID: 22119072 DOI: 10.1016/j.ab.2011.10.049] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 10/25/2011] [Accepted: 10/27/2011] [Indexed: 11/24/2022]
Abstract
A novel, label-free amperometric immunosensor has been developed for the rapid detection of heat-killed Escherichia coli O157:H7 (E. coli O157:H7). This immunosensor was prepared as follows. First, the long-chain, amine-terminated alkanethiol 11-amino-1-undecanethiol hydrochloride (AUT) was self-assembled onto a gold electrode surface to form an ordered, oriented, compact, and stable monolayer possessing -NH(2) functional groups that could immobilize massive gold nanoparticles (GNPs). Next, chitosan-multiwalled carbon nanotubes-SiO(2)/thionine (CHIT-MWNTs-SiO(2)@THI) nanocomposites and GNPs multilayer films were prepared via layer-by-layer (LBL) assembly. The surface area enhancement from the LBL assembly of the multilayer films improves the stability of the immobilized CHIT-MWNTs-SiO(2)@THI. More important, the sensitivity and stability of the immunosensor can be enhanced proportionally to the quantity of the THI mediator immobilized on the electrode surface. Finally, the E. coli O157:H7 antibody (anti-E. coli O157:H7) was covalently bound to the GNP monolayer and its bioactivity was measured by enzyme-linked immunosorbent assay (ELISA). Transmission electron microscopy (TEM) was employed to characterize the morphology of the MWNTs, CHIT-MWNTs, and CHIT-MWNTs-SiO(2)@THI. Under optimal conditions, the calibration curve for heat-killed E. coli O157:H7 has a working range of 4.12×10(2)-4.12×10(5) colony-forming units (CFU)/ml, and the total assay time was less than 45 min.
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Affiliation(s)
- Yan Li
- Department of Clinical Laboratory Science, College of Medical Laboratory, Third Military Medical University, Chongqing 400038, People's Republic of China
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39
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Electrochemical immunosensor for detecting carcinoembryonic antigen using hollow Pt nanospheres-labeled multiple enzyme-linked antibodies as labels for signal amplification. Biochem Eng J 2011. [DOI: 10.1016/j.bej.2011.04.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Weber N, Unterlass MM, Tauer K. High Ionic Strength Promotes the Formation of Spherical Copolymer Particles. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201100206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Gao X, Zhang Y, Wu Q, Chen H, Chen Z, Lin X. One step electrochemically deposited nanocomposite film of chitosan–carbon nanotubes–gold nanoparticles for carcinoembryonic antigen immunosensor application. Talanta 2011; 85:1980-5. [DOI: 10.1016/j.talanta.2011.07.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 07/04/2011] [Accepted: 07/07/2011] [Indexed: 10/18/2022]
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42
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Arya SK, Bhansali S. Lung Cancer and Its Early Detection Using Biomarker-Based Biosensors. Chem Rev 2011; 111:6783-809. [DOI: 10.1021/cr100420s] [Citation(s) in RCA: 196] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Sunil K. Arya
- Bio-MEMS and Microsystem Lab, Department of Electrical Engineering, University of South Florida, 4202 East Fowler Avenue, ENB 118, Tampa, Florida 33620, United States
| | - Shekhar Bhansali
- Bio-MEMS and Microsystem Lab, Department of Electrical Engineering, University of South Florida, 4202 East Fowler Avenue, ENB 118, Tampa, Florida 33620, United States
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43
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Gao X, Zhang Y, Chen H, Chen Z, Lin X. Amperometric immunosensor for carcinoembryonic antigen detection with carbon nanotube-based film decorated with gold nanoclusters. Anal Biochem 2011; 414:70-6. [DOI: 10.1016/j.ab.2011.03.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Revised: 03/03/2011] [Accepted: 03/04/2011] [Indexed: 10/18/2022]
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44
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Zhang M, Yuan R, Chai Y, Li W, Zhong H, Wang C. Glucose biosensor based on titanium dioxide-multiwall carbon nanotubes-chitosan composite and functionalized gold nanoparticles. Bioprocess Biosyst Eng 2011; 34:1143-50. [PMID: 21720965 DOI: 10.1007/s00449-011-0565-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2011] [Accepted: 06/14/2011] [Indexed: 10/18/2022]
Abstract
In this paper, a new glucose biosensor was prepared. At first, Prussian blue (PB) was electrodeposited on a glassy carbon electrode (GCE) modified by titanium dioxide-multiwall carbon nanotubes-chitosan (TiO(2)-MWNTs-CS) composite, and then gold nanoparticles functionalized by poly(diallyldimethylammonium chloride) (PDDA-Au) were adsorbed on the PB film. Finally, the negatively charged glucose oxidase (GOD) was self-assembled on to the positively charged PDDA-Au. The electrochemical performances of the modified electrodes had been studied by cyclic voltammetry (CV) and amperometric methods, respectively. In addition, the stepwise fabrication process of the as-prepared biosensor was characterized by scanning electron microscopy. PDDA-Au nanoparticles were characterized by ultraviolet-vis absorption spectroscopy and transmission electron microscopy. Under the optimal conditions, the as-prepared biosensor exhibited a good response performance to glucose with a linear range from 6 μM to 1.2 mM with a detection limit of 0.1 μM glucose (S/N = 3). In addition, this work indicated that TiO(2)-MWNTs-CS composite and PDDA-Au nanoparticles held great potential for constructing biosensors.
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Affiliation(s)
- Meihe Zhang
- Key Education Ministry Laboratory on Luminescence and Real-Time Analysis, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
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45
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Electrodeposition of gold–platinum alloy nanoparticles on carbon nanotubes as electrochemical sensing interface for sensitive detection of tumor marker. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.05.066] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Tan S, Liu Z, Zu Y, Fu Y, Xing Z, Zhao L, Sun T, Zhou Z. Adsorption of chitosan onto carbonaceous surfaces and its application: atomic force microscopy study. NANOTECHNOLOGY 2011; 22:155703. [PMID: 21389576 DOI: 10.1088/0957-4484/22/15/155703] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The adsorption of chitosan onto highly ordered pyrolytic graphite(HOPG) surfaces and its applications have been studied by atomic force microscopy (AFM). The results indicated that chitosan topography formed on the HOPG surface significantly depends on the pH conditions and its concentration for the incubation. Under strongly acidic conditions (pH < 3.5) and at a concentration of 1 mg ml⁻¹, chitosan formed into uniform network structures composed of fine chains. When the solution pH was changed from 3.5 to 6.5, chitosan tends to form a thicker film. Under neutral and basic conditions, chitosan changed into spherical nanoparticles, and their sizes were increased with increasing pH. Dendritic structures have been observed when the chitosan concentration was increased up to 5 mg ml⁻¹. In addition, the chitosan topography can also be influenced by ionic strength and the addition of different metal ions. When 0.1 M metal ions Na+, Mg²+, Ca²+ and Cu²+ were added into the chitosan solution at pH 3.0 for the incubation, network structures, branched chains, block structures and dense networks attached with many small particles were observed, respectively. The potential applications of these chitosan structures on HOPG have been explored. Preliminary results characterized by AFM and XPS indicated that the chitosan network formed on the HOPG surface can be used for AFM lithography, selective adsorption of gold nanoparticles and DNA molecules.
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Affiliation(s)
- Shengnan Tan
- Key Laboratory of Forest Plant Ecology of Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China
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47
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Wang C, Lin M, Liu Y, Lei H. A dendritic nanosilica-functionalized electrochemical immunosensor with sensitive enhancement for the rapid screening of benzo[a]pyrene. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.12.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Electrochemical immunosensor for human chorionic gonadotropin based on horseradish peroxidase–functionalized Prussian blue–carbon nanotubes/gold nanocomposites as labels for signal amplification. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.12.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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49
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Song Z, Yuan R, Chai Y, Che X, Lv P. Glucose oxidase as a blocking agent-based signal amplification strategy for the fabrication of label-free amperometric immunosensors. Sci China Chem 2010. [DOI: 10.1007/s11426-010-4124-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Zhong Z, Shan J, Zhang Z, Qing Y, Wang D. The Signal-Enhanced Label-Free Immunosensor Based on Assembly of Prussian Blue-SiO2 Nanocomposite for Amperometric Measurement of Neuron-Specific Enolase. ELECTROANAL 2010. [DOI: 10.1002/elan.201000221] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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