101
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Tortolini C, Bollella P, Antonelli ML, Antiochia R, Mazzei F, Favero G. DNA-based biosensors for Hg(2+) determination by polythymine-methylene blue modified electrodes. Biosens Bioelectron 2014; 67:524-31. [PMID: 25263314 DOI: 10.1016/j.bios.2014.09.031] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 09/12/2014] [Accepted: 09/15/2014] [Indexed: 11/26/2022]
Abstract
In this work we have developed a new electrochemical DNA-based biosensor for the selective determination of the Hg(2+) ion by the use of different electrodes modified with polythymine, bearing methylene blue, as redox probe, in 3' position. The determination of Hg(2+) can be employed with an excellent degree of selectivity by the use of DNA biosensors through the formation of the complex Thymine-Hg-Thymine (T-Hg-T): in fact, Hg(2+) tends to bind two thymines, generating a T-Hg-T complex with a formation constant higher than that one of the coupling Adenine-Thymine, which can be employed for a selective, fast and cost-effective Hg(2+) detection. The presence of the Hg(2+) in solution leads to the formation of T-Hg-T complex thus causing the "hairpin-like" folding of oligonucleotide, leading to an improved electronic exchange of methylene blue with the electrode surface due to the reduced distance and thus to an increase of the faradic current which is detected by means of square wave voltammetry (SWV). To test the feasibility of this kind of biosensor to be applied to the analysis of Hg(2+) we have developed several biosensors configuration by modifying the electrochemical sensor transducer: (a) Au electrode; (b) Au screen-printed electrode (SPE). The proposed system, allows the determination of Hg(2+) in the range 0.2-100 nM (0.05-20 ppb), with a sensitivity 0.327 µA/nM, LOD 0.1 nM (0.02 ppb), LOQ 0.2 nM (0.05 ppb) and RSD ≤4.3% when Au electrode is used as electrochemical transducer; on the other hand, in the case of Au SPE the linear range is 0.2-50 nM (0.05-10 ppb), with a sensitivity 0.285 µA/nM, while LOD and LOQ are the same as previously and RSD is ≤3.8%. This enabled the detection of mercury in real samples (waters and fishes) with good accuracy (recoveries 92-101% on waters and 92-107% on fishes, respectively) and reproducibility (RSD ≤9.6% for measurements on waters and ≤8.8% on fishes, respectively).
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Affiliation(s)
- Cristina Tortolini
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy; Department of Chemistry, Sapienza University of Rome, Italy
| | - Paolo Bollella
- Department of Chemistry, Sapienza University of Rome, Italy
| | | | - Riccarda Antiochia
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy
| | - Franco Mazzei
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy
| | - Gabriele Favero
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Italy
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102
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Oliveira ON, Iost RM, Siqueira JR, Crespilho FN, Caseli L. Nanomaterials for diagnosis: challenges and applications in smart devices based on molecular recognition. ACS APPLIED MATERIALS & INTERFACES 2014; 6:14745-66. [PMID: 24968359 DOI: 10.1021/am5015056] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Clinical diagnosis has always been dependent on the efficient immobilization of biomolecules in solid matrices with preserved activity, but significant developments have taken place in recent years with the increasing control of molecular architecture in organized films. Of particular importance is the synergy achieved with distinct materials such as nanoparticles, antibodies, enzymes, and other nanostructures, forming structures organized on the nanoscale. In this review, emphasis will be placed on nanomaterials for biosensing based on molecular recognition, where the recognition element may be an enzyme, DNA, RNA, catalytic antibody, aptamer, and labeled biomolecule. All of these elements may be assembled in nanostructured films, whose layer-by-layer nature is essential for combining different properties in the same device. Sensing can be done with a number of optical, electrical, and electrochemical methods, which may also rely on nanostructures for enhanced performance, as is the case of reporting nanoparticles in bioelectronics devices. The successful design of such devices requires investigation of interface properties of functionalized surfaces, for which a variety of experimental and theoretical methods have been used. Because diagnosis involves the acquisition of large amounts of data, statistical and computational methods are now in widespread use, and one may envisage an integrated expert system where information from different sources may be mined to generate the diagnostics.
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Affiliation(s)
- Osvaldo N Oliveira
- São Carlos Institute of Physics, University of São Paulo , CP 369, 13560-970 São Carlos, São Paulo, Brazil
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103
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Electrochemical, spectroscopic and morphological characterization of electrostatic self-assembled hybrids of tetracationic phosphonium porphyrins and CdTe quantum dots. J APPL ELECTROCHEM 2014. [DOI: 10.1007/s10800-014-0741-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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104
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Luz RAS, Pereira AR, de Souza JCP, Sales FCPF, Crespilho FN. Enzyme Biofuel Cells: Thermodynamics, Kinetics and Challenges in Applicability. ChemElectroChem 2014. [DOI: 10.1002/celc.201402141] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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105
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Chang GX, Ren KF, Zhao YX, Sun YX, Ji J. Modulation of cell behaviors by electrochemically active polyelectrolyte multilayers. E-POLYMERS 2014. [DOI: 10.1515/epoly-2014-0075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
AbstractIn addition to the topographical features and chemical properties of substrates, the mechanical properties are known as a vital regulator of cellular processes such as adhesion, proliferation, and migration, and have received considerable attention in recent years. In this work, electrochemical redox multilayers made of ferrocene-modified poly(ethylenimine) (PEI-Fc) and deoxyribonucleic acid (DNA) with controlled stiffness were used to investigate the effects of the mechanical properties of multilayers on fibroblast cell (NIH/3T3) behaviors. Redox PEI-Fc plays an essential role in inducing swelling in multilayers under an electrochemical stimulus, resulting in distinct changes in the stiffness of the multilayers. The Young’s modulus varied from 2.05 to 1.07 MPa for the (PEI-Fc/DNA) multilayers by changing the oxidation time of the electrochemical treatment. We demonstrated that the adhesion, proliferation, and migration of fibroblast cells depended on the multilayers’ stiffness. These results indicate that cell behaviors can be precisely controlled by electrochemical treatment, which provides a new way to prepare thin films with tunable mechanical properties with potential biomedical applications.
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Affiliation(s)
- Guo-xun Chang
- 1MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Ke-feng Ren
- 1MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Yi-xiu Zhao
- 1MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Yi-xin Sun
- 1MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Jian Ji
- 1MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
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106
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Borges J, Mano JF. Molecular Interactions Driving the Layer-by-Layer Assembly of Multilayers. Chem Rev 2014; 114:8883-942. [DOI: 10.1021/cr400531v] [Citation(s) in RCA: 609] [Impact Index Per Article: 60.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- João Borges
- 3B’s
Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra,
S. Cláudio do Barco 4806-909 Caldas das Taipas, Guimarães, Portugal
- ICVS/3B’s
− PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João F. Mano
- 3B’s
Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra,
S. Cláudio do Barco 4806-909 Caldas das Taipas, Guimarães, Portugal
- ICVS/3B’s
− PT Government Associate Laboratory, Braga/Guimarães, Portugal
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107
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Zapp E, da Silva PS, Westphal E, Gallardo H, Spinelli A, Vieira IC. Troponin T Immunosensor Based on Liquid Crystal and Silsesquioxane-Supported Gold Nanoparticles. Bioconjug Chem 2014; 25:1638-43. [DOI: 10.1021/bc500341a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Eduardo Zapp
- Laboratory of Biosensors, ‡Study Group of Electrochemical and
Electroanalytical
Processes, and §Laboratory of Synthesis of Liquid Crystals, Department
of Chemistry, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil
| | - Paulo Sérgio da Silva
- Laboratory of Biosensors, ‡Study Group of Electrochemical and
Electroanalytical
Processes, and §Laboratory of Synthesis of Liquid Crystals, Department
of Chemistry, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil
| | - Eduard Westphal
- Laboratory of Biosensors, ‡Study Group of Electrochemical and
Electroanalytical
Processes, and §Laboratory of Synthesis of Liquid Crystals, Department
of Chemistry, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil
| | - Hugo Gallardo
- Laboratory of Biosensors, ‡Study Group of Electrochemical and
Electroanalytical
Processes, and §Laboratory of Synthesis of Liquid Crystals, Department
of Chemistry, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil
| | - Almir Spinelli
- Laboratory of Biosensors, ‡Study Group of Electrochemical and
Electroanalytical
Processes, and §Laboratory of Synthesis of Liquid Crystals, Department
of Chemistry, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil
| | - Iolanda Cruz Vieira
- Laboratory of Biosensors, ‡Study Group of Electrochemical and
Electroanalytical
Processes, and §Laboratory of Synthesis of Liquid Crystals, Department
of Chemistry, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil
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108
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Sato K, Takahashi M, Ito M, Abe E, Anzai JI. H2O2-induced decomposition of layer-by-layer films consisting of phenylboronic acid-bearing poly(allylamine) and poly(vinyl alcohol). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:9247-9250. [PMID: 25068463 DOI: 10.1021/la501750s] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Layer-by-layer (LbL) films were prepared by an alternate deposition of phenylboronic acid-bearing poly(allylamine hydrochloride) (PBA-PAH) and poly(vinyl alcohol) (PVA) on the surface of a quartz slide to develop thin films that can be decomposed in response to hydrogen peroxide (H2O2). The PBA-PAH/PVA films decomposed in the presence of H2O2; the degree and kinetics of decomposition depend on the concentration of H2O2 and on the pH of the solution. For example, the film decomposition completely occurred in 30 min in 1.0 mM H2O2 solution at pH 7.4, while it took 180 min in 0.1 mM H2O2 solution. The H2O2-induced decomposition of the film can be explained in terms of the oxidative scission of the carbon-boron bond in PBA residues in the PBA-PAH chains. A potential use of the PBA-PAH/PVA films in developing H2O2-sensitive delivery systems was suggested.
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Affiliation(s)
- Katsuhiko Sato
- Graduate School of Pharmaceutical Sciences, Tohoku University , Aramaki, Aoba-ku, Sendai 980-8578, Japan
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109
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Watahiki R, Sato K, Suwa K, Niina S, Egawa Y, Seki T, Anzai JI. Multilayer films composed of phenylboronic acid-modified dendrimers sensitive to glucose under physiological conditions. J Mater Chem B 2014; 2:5809-5817. [DOI: 10.1039/c4tb00676c] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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110
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Qin H, Liu J, Zhang Z, Li J, Gao G, Yang Y, Yuan X, Wu D. In situ electrochemical assessment of cytotoxicity of chlorophenols in MCF-7 and HeLa cells. Anal Biochem 2014; 462:60-6. [PMID: 24973716 DOI: 10.1016/j.ab.2014.06.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 06/14/2014] [Accepted: 06/17/2014] [Indexed: 11/26/2022]
Abstract
An in situ electrochemical method was used to assess the cytotoxicity of chlorophenols using human breast cancer (MCF-7) and cervical carcinoma (HeLa) cells as models. On treatment with different chlorophenols, the electrochemical responses of the selected cells, resulting from the oxidation of guanine and xanthine in the cytoplasm, indicated the cell viability. In addition, the in situ in vitro electrochemical method was further compared with the traditional MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assays. Although similar cytotoxicity data were obtained from both methods, the effective concentrations of chlorophenols that inhibited 50% cell growth (EC50 values) from the electrochemical method were only slightly lower than those from the MTT assay. These results indicate that the in situ in vitro electrochemical method paves a simple, rapid, strongly responsive, and label-free way to the cytotoxicity assessment of different chlorophenol pollutants.
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Affiliation(s)
- Hongwei Qin
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130024, China
| | - Jiguang Liu
- School of Stomatology, Jiamusi University, Jiamusi 154007, China
| | - Zeshi Zhang
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130024, China
| | - Jinlian Li
- College of Chemistry and Pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Guanggang Gao
- College of Chemistry and Pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Yuxin Yang
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130024, China
| | - Xing Yuan
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130024, China.
| | - Dongmei Wu
- College of Chemistry and Pharmacy, Jiamusi University, Jiamusi 154007, China.
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111
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Silva PSD, Gasparini BC, Magosso HA, Spinelli A. Gold nanoparticles hosted in a water-soluble silsesquioxane polymer applied as a catalytic material onto an electrochemical sensor for detection of nitrophenol isomers. JOURNAL OF HAZARDOUS MATERIALS 2014; 273:70-77. [PMID: 24721696 DOI: 10.1016/j.jhazmat.2014.03.032] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 03/06/2014] [Accepted: 03/16/2014] [Indexed: 06/03/2023]
Abstract
The water-soluble 3-n-propyl-4-picolinium silsesquioxane chloride (Si4Pic(+)Cl(-)) polymer was prepared, characterized and used as a stabilizing agent for the synthesis of gold nanoparticles (nAu). The ability of Si4Pic(+)Cl(-) to adsorb anionic metal complexes such as AuCl4(-) ions allowed well-dispersed nAu to be obtained with an average particle size of 4.5nm. The liquid suspension of nAu-Si4Pic(+)Cl(-) was deposited by the drop coating method onto a glassy carbon electrode (GCE) surface to build a sensor (nAu-Si4Pic(+)Cl(-)/GCE) which was used for the detection of o-nitrophenol (o-NP) and p-nitrophenol (p-NP). Under optimized experimental conditions the reduction peak current increased with increasing concentrations of both nitrophenol isomers in the range of 0.1-1.5μmolL(-1). The detection limits were 46nmolL(-1) and 55nmolL(-1) for o-NP and p-NP, respectively. These findings indicate that the nAu-Si4Pic(+)Cl(-) material is a very promising candidate to assemble electrochemical sensors for practical applications in the field of analytical chemistry.
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Affiliation(s)
- Paulo Sérgio da Silva
- Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Bianca C Gasparini
- Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Hérica A Magosso
- Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Almir Spinelli
- Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil.
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112
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Siqueira JR, Molinnus D, Beging S, Schöning MJ. Incorporating a Hybrid Urease-Carbon Nanotubes Sensitive Nanofilm on Capacitive Field-Effect Sensors for Urea Detection. Anal Chem 2014; 86:5370-5. [DOI: 10.1021/ac500458s] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- José R. Siqueira
- Institute
of Exact Sciences, Naturals and Education, Federal University of Triângulo Mineiro (UFTM), 38064-200 Uberaba, Brazil
| | - Denise Molinnus
- Institute
of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, 52428 Jülich, Germany
| | - Stefan Beging
- Institute
of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, 52428 Jülich, Germany
| | - Michael J. Schöning
- Institute
of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, 52428 Jülich, Germany
- Peter
Grünberg Institute (PGI-8), Forschungszentrum Jülich, 52425 Jülich, Germany
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113
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Kang Z, Yan X, Zhang Y, Pan J, Shi J, Zhang X, Liu Y, Choi JH, Porterfield DM. Single-stranded DNA functionalized single-walled carbon nanotubes for microbiosensors via layer-by-layer electrostatic self-assembly. ACS APPLIED MATERIALS & INTERFACES 2014; 6:3784-3789. [PMID: 24606733 DOI: 10.1021/am500118k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this letter, the facial noncovalent adsorption of single-stranded DNA (ssDNA) provided single-walled carbon nanotubes (SWNTs) with biofunctionality while their superior properties were retained. In this case, we innovatively demonstrated the feasibility of employing the negative surface charge of ssDNA-SWNTs to realize layer-by-layer electrostatic self-assembly. On the basis of such a sandwichlike structure, an applicable glucose microbiosensor with direct electrochemistry and high performance was fabricated. The proposed protocol provided an ideal platform for various sensing applications, and might have profound influence on related nanotechnology.
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Affiliation(s)
- Zhuo Kang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, and §Key Laboratory of New Energy Materials and Technologies, University of Science and Technology Beijing , Beijing 100083, China
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114
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Suntivich R, Drachuk I, Calabrese R, Kaplan DL, Tsukruk VV. Inkjet Printing of Silk Nest Arrays for Cell Hosting. Biomacromolecules 2014; 15:1428-35. [DOI: 10.1021/bm500027c] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Rattanon Suntivich
- School
of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Irina Drachuk
- School
of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Rossella Calabrese
- Department
of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - David L. Kaplan
- Department
of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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115
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Modeling dendrimers charge interaction in solution: relevance in biosystems. Biochem Res Int 2014; 2014:837651. [PMID: 24719765 PMCID: PMC3955673 DOI: 10.1155/2014/837651] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 12/30/2013] [Accepted: 01/13/2014] [Indexed: 12/20/2022] Open
Abstract
Dendrimers are highly branched macromolecules obtained by stepwise controlled, reaction sequences. The ability to be designed for specific applications makes dendrimers unprecedented components to control the structural organization of matter during the bottom-up synthesis of functional nanostructures. For their applications in the field of biotechnology the determination of dendrimer structural properties as well as the investigation of the specific interaction with guest components are needed. We show how the analysis of the scattering structure factor S(q), in the framework of current models for charged systems in solution, allows for obtaining important information of the interdendrimers electrostatic interaction potential. The finding of the presented results outlines the important role of the dendrimer charge and the solvent conditions in regulating, through the modulation of the electrostatic interaction potential, great part of the main structural properties. This charge interaction has been indicated by many studies as a crucial factor for a wide range of structural processes involving their biomedical application. Due to their easily controllable properties dendrimers can be considered at the crossroad between traditional colloids, associating polymers, and biological systems and represent then an interesting new technological approach and a suitable model system of molecular organization in biochemistry and related fields.
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116
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Perkins J, Hong Y, Ye SH, Wagner WR, Desai S. Direct writing of bio-functional coatings for cardiovascular applications. J Biomed Mater Res A 2014; 102:4290-300. [PMID: 24497436 DOI: 10.1002/jbm.a.35105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 01/23/2014] [Accepted: 01/30/2014] [Indexed: 11/10/2022]
Abstract
The surface modification of metallic biomaterials is of critical importance to enhance the biocompatibility of surgical implant materials and devices. This article investigates the use of a direct-write inkjet technique for multilayer coatings of a biodegradable polymer (polyester urethane urea (PEUU)) embedded with an anti-proliferation drug paclitaxel (Taxol). The direct-write inkjet technique provides selective patterning capability for depositing multimaterial coatings on three-dimensional implant devices such as pins, screws, and stents for orthopedic and vascular applications. Drug release profiles were studied to observe the influence of drug loading and coating thickness for obtaining tunable release kinetics. Platelet deposition studies were conducted following ovine blood contact and significant reduction in platelet deposition was observed on the Taxol loaded PEUU substrate compared with the unloaded control. Rat smooth muscle cells were used for cell proliferation studies. Significant reduction in cell growth was observed following the release of anti-proliferative drug from the biopolymer thin film. This research provides a basis for developing anti-proliferative biocompatible coatings for different biomedical device applications.
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Affiliation(s)
- Jessica Perkins
- Department of Industrial and Systems Engineering, North Carolina A&T State University, 1601 E. Market St, Greensboro, North Carolina, 27411; Engineering Research Center for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, 1601 E. Market St., Greensboro, North Carolina, 27411
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117
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Martins MVA, Pereira AR, Luz RAS, Iost RM, Crespilho FN. Evidence of short-range electron transfer of a redox enzyme on graphene oxide electrodes. Phys Chem Chem Phys 2014; 16:17426-36. [DOI: 10.1039/c4cp00452c] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphene oxide sheets provide short-range electron transfer from the glucose oxidase enzyme to the electrode surface.
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Affiliation(s)
| | - Andressa R. Pereira
- Instituto de Química de São Carlos
- Universidade de São Paulo
- São Carlos, Brazil
| | - Roberto A. S. Luz
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André, Brazil
| | - Rodrigo M. Iost
- Instituto de Química de São Carlos
- Universidade de São Paulo
- São Carlos, Brazil
| | - Frank N. Crespilho
- Instituto de Química de São Carlos
- Universidade de São Paulo
- São Carlos, Brazil
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118
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Ensafi AA, Heydari-Bafrooei E, Dinari M, Mallakpour S. Improved immobilization of DNA to graphite surfaces, using amino acid modified clays. J Mater Chem B 2014; 2:3022-3028. [DOI: 10.1039/c3tb21827a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nano-sized biosensor containing valine amino acid organo-modified Cloisite as a bionanohybrid film for immobilization of DNA was developed.
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Affiliation(s)
- Ali A. Ensafi
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111, Iran
| | | | - Mohammad Dinari
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111, Iran
| | - S. Mallakpour
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111, Iran
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119
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Parween S, Misra A, Ramakumar S, Chauhan VS. Self-assembled dipeptide nanotubes constituted by flexible β-phenylalanine and conformationally constrained α,β-dehydrophenylalanine residues as drug delivery system. J Mater Chem B 2014; 2:3096-3106. [DOI: 10.1039/c3tb21856b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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120
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Sato K, Anzai JI. Dendrimers in layer-by-layer assemblies: synthesis and applications. Molecules 2013; 18:8440-60. [PMID: 23867653 PMCID: PMC6270364 DOI: 10.3390/molecules18078440] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 07/08/2013] [Accepted: 07/15/2013] [Indexed: 11/16/2022] Open
Abstract
We review the synthesis of dendrimer-containing layer-by-layer (LbL) assemblies and their applications, including biosensing, controlled drug release, and bio-imaging. Dendrimers can be built into LbL films and microcapsules by alternating deposition of dendrimers and counter polymers on the surface of flat substrates and colloidal microparticles through electrostatic bonding, hydrogen bonding, covalent bonding, and biological affinity. Dendrimer-containing LbL assemblies have been used to construct biosensors, in which electron transfer mediators and metal nanoparticles are often coupled with dendrimers. Enzymes have been successfully immobilized on the surface of electrochemical and optical transducers by forming enzyme/dendrimer LbL multilayers. In this way, high-performance enzyme sensors are fabricated. In addition, dendrimer LbL films and microcapsules are useful for constructing drug delivery systems because dendrimers bind drugs to form inclusion complexes or the dendrimer surface is covalently modified with drugs. Magnetic resonance imaging of cancer cells by iron oxide nanoparticles coated with dendrimer LbL film is also discussed.
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Affiliation(s)
| | - Jun-ichi Anzai
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan; E-Mail:
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121
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Ion Permeability of Free-Suspended Layer-by-Layer (LbL) Films Prepared Using an Alginate Scaffold. Polymers (Basel) 2013. [DOI: 10.3390/polym5020696] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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122
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The layer-by-layer assembly of polyelectrolyte functionalized graphene sheets: A potential tool for biosensing. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.02.039] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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123
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Controlling solid lipid nanoparticle adhesion by polyelectrolyte multilayer surface modifications. Int J Pharm 2013; 449:59-71. [DOI: 10.1016/j.ijpharm.2013.03.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 03/27/2013] [Accepted: 03/28/2013] [Indexed: 01/29/2023]
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124
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Chen HJ, Zhang ZH, Cai R, Chen X, Liu YN, Rao W, Yao SZ. Molecularly imprinted electrochemical sensor based on amine group modified graphene covalently linked electrode for 4-nonylphenol detection. Talanta 2013; 115:222-7. [PMID: 24054583 DOI: 10.1016/j.talanta.2013.04.069] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 04/22/2013] [Accepted: 04/24/2013] [Indexed: 11/30/2022]
Abstract
In this work, an imprinted electrochemical sensor based on electrochemical reduced graphene covalently modified carbon electrode was developed for the determination of 4-nonylphenol (NP). An amine-terminated functional graphene oxide was covalently modified onto the electrode surface with diazonium salt reactions to improve the stability and reproducibility of the imprinted sensor. The electrochemical properties of each modified electrodes were investigated with differential pulse voltammetry (DPV). The electrochemical characteristic of the imprinted sensor was also investigated using electrochemical impedance spectroscopy (EIS) in detail. The response currents of the imprinted electrode exhibited a linear relationship toward 4-nonylphenol concentration ranging from 1.0 × 10(-11) to 1.0 × 10(-8) gm L(-1) with the detection limit of 3.5 × 10(-12) gm L(-1) (S/N=3). The fabricated electrochemical imprinted sensor was successfully applied to the detection of 4-nonylphenol in rain and lake water samples.
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Affiliation(s)
- Hong-Jun Chen
- Key laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Hunan 427000, PR China; College of Chemistry and Chemical Engineering, Jishou University, Hunan 416000, PR China
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125
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Poghossian A, Weil M, Cherstvy AG, Schöning MJ. Electrical monitoring of polyelectrolyte multilayer formation by means of capacitive field-effect devices. Anal Bioanal Chem 2013; 405:6425-36. [DOI: 10.1007/s00216-013-6951-9] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 03/25/2013] [Accepted: 03/26/2013] [Indexed: 11/30/2022]
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126
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Gutierrez F, Rubianes MD, Rivas GA. Adsorption and Electrooxidation of DNA at Glassy Carbon Electrodes Modified with Multiwall Carbon Nanotubes Dispersed in Glucose Oxidase. ELECTROANAL 2013. [DOI: 10.1002/elan.201200559] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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127
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Walcarius A, Minteer SD, Wang J, Lin Y, Merkoçi A. Nanomaterials for bio-functionalized electrodes: recent trends. J Mater Chem B 2013; 1:4878-4908. [DOI: 10.1039/c3tb20881h] [Citation(s) in RCA: 261] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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128
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Dalmasso PR, Pedano ML, Rivas GA. Supramolecular architecture based on the self-assembling of multiwall carbon nanotubes dispersed in polyhistidine and glucose oxidase: Characterization and analytical applications for glucose biosensing. Biosens Bioelectron 2013; 39:76-81. [DOI: 10.1016/j.bios.2012.06.041] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Revised: 06/21/2012] [Accepted: 06/21/2012] [Indexed: 01/09/2023]
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129
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Apetrei C, Ghasemi-Varnamkhasti M. Biosensors in Food PDO Authentication. FOOD PROTECTED DESIGNATION OF ORIGIN - METHODOLOGIES AND APPLICATIONS 2013. [DOI: 10.1016/b978-0-444-59562-1.00011-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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130
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Qin H, Gao Q, Niu H, Wang Z, Zhu X, Li J, Yuan X, Wu D. An in situ electrochemical detection method of cell viability. Analyst 2013; 138:3372-5. [DOI: 10.1039/c3an00379e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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131
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Target-induced structure-switching DNA hairpins for sensitive electrochemical monitoring of mercury (II). Biosens Bioelectron 2013; 39:315-9. [DOI: 10.1016/j.bios.2012.07.015] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2012] [Revised: 07/09/2012] [Accepted: 07/12/2012] [Indexed: 02/02/2023]
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132
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Gasparotto LHS, Castelhano ALB, Gabriel RC, Dantas NO, Oliveira ON, Siqueira JR. Electrogeneration of platinum nanoparticles in a matrix of dendrimer–carbon nanotubes. Phys Chem Chem Phys 2013; 15:17887-92. [DOI: 10.1039/c3cp52707g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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133
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Ricci F, Adornetto G, Palleschi G. A review of experimental aspects of electrochemical immunosensors. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.06.033] [Citation(s) in RCA: 225] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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134
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Layer by layer assembly of catalase and amine-terminated ionic liquid onto titanium nitride nanoparticles modified glassy carbon electrode: Study of direct voltammetry and bioelectrocatalytic activity. Anal Chim Acta 2012; 753:32-41. [DOI: 10.1016/j.aca.2012.09.043] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 09/23/2012] [Accepted: 09/25/2012] [Indexed: 11/20/2022]
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135
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Prosser JH, Brugarolas T, Lee S, Nolte AJ, Lee D. Avoiding cracks in nanoparticle films. NANO LETTERS 2012; 12:5287-91. [PMID: 22984890 DOI: 10.1021/nl302555k] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A new method utilizing subsequent depositions of thin crack-free nanoparticle layers is demonstrated to avoid the formation of cracks within silica nanoparticle films. Using this method, films can be assembled with thicknesses exceeding the critical cracking values. Explanation of this observed phenomenon is hypothesized to mainly arise from chemical bond formation between neighboring silica nanoparticles. Application of this method for fabricating crack-free functional structures is demonstrated by producing crack-free Bragg reflectors that exhibit structural color.
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Affiliation(s)
- Jacob H Prosser
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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