1
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Gou D, Qiu P, Hong F, Wang Y, Ren P, Cheng X, Wang L, Liu T, Liu J, Zhao J. Polydopamine modified multifunctional carboxymethyl chitosan/pectin hydrogel loaded with recombinant human epidermal growth factor for diabetic wound healing. Int J Biol Macromol 2024; 274:132917. [PMID: 38851612 DOI: 10.1016/j.ijbiomac.2024.132917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/29/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
The development of a multifunctional wound dressing that can adapt to the shape of wounds and provide controlled drug release is crucial for diabetic patients. This study developed a carboxymethyl chitosan-based hydrogel dressing with enhanced mechanical properties and tissue adherence that were achieved by incorporating pectin (PE) and polydopamine (PDA) and loading the hydrogel with recombinant human epidermal growth factor (rhEGF). This EGF@PDA-CMCS-PE hydrogel demonstrated robust tissue adhesion, enhanced mechanical properties, and superior water retention and vapor permeability. It also exhibited significant antioxidant capacity. The results showed that EGF@PDA-CMCS-PE could effectively scavenge 2,2'-Azinobis-(3-ethylbenzthiazoline-6-sulphonate), (1,1-diphenyl-2-picrylhydrazyl), and superoxide anions and increase superoxide dismutase and catalase levels in vivo. In vitro cytotoxicity and antibacterial assays showed good biocompatibility and antimicrobial properties. The sustained release of EGF by the hydrogel was confirmed, with a gradual release profile over 120 h. In vivo studies in diabetic mice showed that the hydrogel significantly accelerated wound healing, with a wound contraction rate of 97.84% by day 14. Histopathological analysis revealed that the hydrogel promoted fibroblast proliferation, neovascularization, and orderly connective tissue formation, leading to a more uniform and compact wound-healing process. Thus, EGF@PDA-CMCS-PE hydrogel presents a promising tool for managing chronic diabetic wounds, offering a valuable strategy for future clinical applications.
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Affiliation(s)
- Dongxia Gou
- College of Food Science and Engineering, Changchun University, Changchun 130022, China
| | - Peng Qiu
- College of Food Science and Engineering, Changchun University, Changchun 130022, China
| | - Fandi Hong
- College of Food Science and Engineering, Changchun University, Changchun 130022, China
| | - Yufan Wang
- College of Food Science and Engineering, Changchun University, Changchun 130022, China
| | - Peirou Ren
- College of Food Science and Engineering, Changchun University, Changchun 130022, China
| | - Xiaowen Cheng
- College of Food Science and Engineering, Changchun University, Changchun 130022, China
| | - Lei Wang
- College of Food Science and Engineering, Changchun University, Changchun 130022, China
| | - Tong Liu
- College of Food Science and Engineering, Changchun University, Changchun 130022, China
| | - Jiaxin Liu
- Jilin Province Product Quality Supervision and Inspection Institute, Changchun 130103, China
| | - Jun Zhao
- College of Food Science and Engineering, Changchun University, Changchun 130022, China.
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2
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Oliveira DA, McLamore ES, Gomes CL. Rapid and label-free Listeria monocytogenes detection based on stimuli-responsive alginate-platinum thiomer nanobrushes. Sci Rep 2022; 12:21413. [PMID: 36496515 PMCID: PMC9741594 DOI: 10.1038/s41598-022-25753-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
In this work, we demonstrate the development of a rapid and label-free electrochemical biosensor to detect Listeria monocytogenes using a novel stimulus-response thiomer nanobrush material. Nanobrushes were developed via one-step simultaneous co-deposition of nanoplatinum (Pt) and alginate thiomers (ALG-thiomer). ALG-thiomer/Pt nanobrush platform significantly increased the average electroactive surface area of electrodes by 7 folds and maintained the actuation properties (pH-stimulated osmotic swelling) of the alginate. Dielectric behavior during brush actuation was characterized with positively, neutral, and negatively charged redox probes above and below the isoelectric point of alginate, indicating ALG-thiomer surface charge plays an important role in signal acquisition. The ALG-thiomer platform was biofunctionalized with an aptamer selective for the internalin A protein on Listeria for biosensing applications. Aptamer loading was optimized and various cell capture strategies were investigated (brush extended versus collapsed). Maximum cell capture occurs when the ALG-thiomer/aptamer is in the extended conformation (pH > 3.5), followed by impedance measurement in the collapsed conformation (pH < 3.5). Low concentrations of bacteria (5 CFU mL-1) were sensed from a complex food matrix (chicken broth) and selectivity testing against other Gram-positive bacteria (Staphylococcus aureus) indicate the aptamer affinity is maintained, even at these pH values. The new hybrid soft material is among the most efficient and fastest (17 min) for L. monocytogenes biosensing to date, and does not require sample pretreatment, constituting a promising new material platform for sensing small molecules or cells.
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Affiliation(s)
- Daniela A Oliveira
- Department of Biological and Agricultural Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Eric S McLamore
- Agricultural Sciences, Clemson University, Clemson, SC, 29631, USA
| | - Carmen L Gomes
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA.
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3
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Cao D, Martinez JG, Hara ES, Jager EWH. Biohybrid Variable-Stiffness Soft Actuators that Self-Create Bone. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2107345. [PMID: 34877728 DOI: 10.1002/adma.202107345] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/12/2021] [Indexed: 06/13/2023]
Abstract
Inspired by the dynamic process of initial bone development, in which a soft tissue turns into a solid load-bearing structure, the fabrication, optimization, and characterization of bioinduced variable-stiffness actuators that can morph in various shapes and change their properties from soft to rigid are hereby presented. Bilayer devices are prepared by combining the electromechanically active properties of polypyrrole with the compliant behavior of alginate gels that are uniquely functionalized with cell-derived plasma membrane nanofragments (PMNFs), previously shown to mineralize within 2 days, which promotes the mineralization in the gel layer to achieve the soft to stiff change by growing their own bone. The mineralized actuator shows an evident frozen state compared to the movement before mineralization. Next, patterned devices show programmed directional and fixated morphing. These variable-stiffness devices can wrap around and, after the PMNF-induced mineralization in and on the gel layer, adhere and integrate onto bone tissue. The developed biohybrid variable-stiffness actuators can be used in soft (micro-)robotics and as potential tools for bone repair or bone tissue engineering.
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Affiliation(s)
- Danfeng Cao
- Sensor and Actuator Systems, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, 58183, Sweden
| | - Jose G Martinez
- Sensor and Actuator Systems, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, 58183, Sweden
| | - Emilio Satoshi Hara
- Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8558, Japan
| | - Edwin W H Jager
- Sensor and Actuator Systems, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, 58183, Sweden
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4
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Hauser D, Septiadi D, Turner J, Petri-Fink A, Rothen-Rutishauser B. From Bioinspired Glue to Medicine: Polydopamine as a Biomedical Material. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1730. [PMID: 32272786 PMCID: PMC7178714 DOI: 10.3390/ma13071730] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 12/13/2022]
Abstract
Biological structures have emerged through millennia of evolution, and nature has fine-tuned the material properties in order to optimise the structure-function relationship. Following this paradigm, polydopamine (PDA), which was found to be crucial for the adhesion of mussels to wet surfaces, was hence initially introduced as a coating substance to increase the chemical reactivity and surface adhesion properties. Structurally, polydopamine is very similar to melanin, which is a pigment of human skin responsible for the protection of underlying skin layers by efficiently absorbing light with potentially harmful wavelengths. Recent findings have shown the subsequent release of the energy (in the form of heat) upon light excitation, presenting it as an ideal candidate for photothermal applications. Thus, polydopamine can both be used to (i) coat nanoparticle surfaces and to (ii) form capsules and ultra-small (nano)particles/nanocomposites while retaining bulk characteristics (i.e., biocompatibility, stability under UV irradiation, heat conversion, and activity during photoacoustic imaging). Due to the aforementioned properties, polydopamine-based materials have since been tested in adhesive and in energy-related as well as in a range of medical applications such as for tumour ablation, imaging, and drug delivery. In this review, we focus upon how different forms of the material can be synthesised and the use of polydopamine in biological and biomedical applications.
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Affiliation(s)
- Daniel Hauser
- Division of Surgery & Interventional Science, Royal Free Hospital, University College London, London NW3 2PS, UK;
- Adolphe Merkle Institute, University of Fribourg, 1700 Fribourg, Switzerland; (D.S.); (A.P.-F.)
| | - Dedy Septiadi
- Adolphe Merkle Institute, University of Fribourg, 1700 Fribourg, Switzerland; (D.S.); (A.P.-F.)
| | - Joel Turner
- Division of Surgery & Interventional Science, Royal Free Hospital, University College London, London NW3 2PS, UK;
| | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, 1700 Fribourg, Switzerland; (D.S.); (A.P.-F.)
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5
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Boroumand Y, Razmjou A, Moazzam P, Mohagheghian F, Eshaghi G, Etemadifar Z, Asadnia M, Shafiei R. Mussel inspired bacterial denitrification of water using fractal patterns of polydopamine. JOURNAL OF WATER PROCESS ENGINEERING 2020; 33:101105. [DOI: 10.1016/j.jwpe.2019.101105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
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6
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Mussel-inspired antibacterial polydopamine/chitosan/temperature-responsive hydrogels for rapid hemostasis. Int J Biol Macromol 2019; 138:321-333. [DOI: 10.1016/j.ijbiomac.2019.07.052] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 05/06/2019] [Accepted: 07/07/2019] [Indexed: 11/19/2022]
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7
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Sun X, Yan L, Xu R, Xu M, Zhu Y. Surface modification of TiO2 with polydopamine and its effect on photocatalytic degradation mechanism. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.03.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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8
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Khan A, Alamry KA, Jain RK. Polypyrrole nanoparticles-based soft actuator for artificial muscle applications. RSC Adv 2019; 9:39721-39734. [PMID: 35541412 PMCID: PMC9076173 DOI: 10.1039/c9ra06900c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/20/2019] [Indexed: 01/18/2023] Open
Abstract
Currently, a straightforward fabrication technique for the development of soft actuators to explore their potential in robotic applications using environmentally compatible raw materials represents an important challenge.
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Affiliation(s)
- Ajahar Khan
- Faculty of Science
- Department of Chemistry
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Khalid A. Alamry
- Faculty of Science
- Department of Chemistry
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Ravi Kant Jain
- Microrobotics Laboratory/Information Technology Group
- CSIR-Central Mechanical Engineering Research Institute (CMERI)
- Durgapur 713209
- India
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9
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Ghorbani F, Zamanian A, Behnamghader A, Joupari MD. A facile method to synthesize mussel-inspired polydopamine nanospheres as an active template for in situ formation of biomimetic hydroxyapatite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:729-739. [PMID: 30423759 DOI: 10.1016/j.msec.2018.10.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 09/15/2018] [Accepted: 10/02/2018] [Indexed: 12/23/2022]
Abstract
In this study, Mussel-inspired polydopamine (PDA) nanospheres were synthesized via spontaneous oxidative polymerization of dopamine hydrochloride (dopa-HCl) in a deionized water-alcohol mixed solvent at room temperature and atmospheric air, under alkaline condition. Field-emission scanning electron microscopy (FE-SEM) demonstrated production of sphere-like shape with a smooth surface and tunable size, while monodispersity increased by utilizing isopropanol instead of ethanol owing to lower Ra values based on Hansen solubility parameter (HSP) theory. Dropwise addition of monomer played an undeniable role in the fabrication of uniform and smaller spheres. The difference of the charge repulsion of constructs in the range of pH led to different dispersive behavior in a variety of solvents, exhibiting versatile applications. The presence of active functional groups on the surface of PDA spheres made them an appropriate option for PDA-assisted biomimetic mineralization of hydroxyapatite (HA), which is the result of the interaction between abundant catecholamine moieties in PDA and Ca+2 ions in simulated body fluid. Bio-adhesive nature of PDA in water and the presence of amino and hydroxyl functional groups support desirable L929 mouse fibroblast cell spreading. The viability of >90% fibroblast cells proved the biocompatibility of polymerized structure. All the achievements indicated that PDA nanospheres provide a biocompatible and bioactive template for green synthesizing hydroxyapatite and the innovative basis for further tissue engineering applications.
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Affiliation(s)
- Farnaz Ghorbani
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Ali Zamanian
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran; Stem cell Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Biomaterials, Aprin Advanced Technologies Development Company, Tehran, Iran.
| | - Aliasghar Behnamghader
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran
| | - Morteza Daliri Joupari
- Department of Animal, Avian and Marine Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
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10
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Czuba U, Quintana R, De Pauw-Gillet MC, Bourguignon M, Moreno-Couranjou M, Alexandre M, Detrembleur C, Choquet P. Atmospheric Plasma Deposition of Methacrylate Layers Containing Catechol/Quinone Groups: An Alternative to Polydopamine Bioconjugation for Biomedical Applications. Adv Healthc Mater 2018; 7:e1701059. [PMID: 29577666 DOI: 10.1002/adhm.201701059] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 12/22/2017] [Indexed: 01/08/2023]
Abstract
Bioconjugation of enzymes on coatings based on polydopamine (PDA) layers is an appealing approach to control biological responses on biomedical implant surfaces. As alternative to PDA wet deposition, a fast, solvent-free, and dynamic deposition approach based on atmospheric-pressure plasma dielectric barrier discharge process is considered to deposit on metallic surfaces acrylic-based interlayers containing highly chemically reactive catechol/quinone groups. A biomimetic approach based on covalent immobilization of Dispersin B, an enzyme with antibiofilm properties, shows the bioconjugation potential of the novel plasma polymer layers. The excellent antibiofilm activity against Staphylococcus epidermidis is comparable to the PDA-based layers prepared by wet chemical methods with slow deposition rates. A study of preosteoblastic MG-63 human cell line viability and adhesion properties on plasma polymer layers demonstrates early interaction required for biomedical applications.
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Affiliation(s)
- Urszula Czuba
- Materials Research and Technology Department; Luxembourg Institute of Science and Technology (LIST); L-4422 Belvaux Luxembourg
- Chemistry Department, Center for Education and Research on Macromolecules (CERM); CESAM Research Unit; University of Liege; 4000 Liège Belgium
| | - Robert Quintana
- Materials Research and Technology Department; Luxembourg Institute of Science and Technology (LIST); L-4422 Belvaux Luxembourg
| | | | - Maxime Bourguignon
- Chemistry Department, Center for Education and Research on Macromolecules (CERM); CESAM Research Unit; University of Liege; 4000 Liège Belgium
- Symbiose Biomaterials s.a.; 4000 Liège Belgium
| | - Maryline Moreno-Couranjou
- Materials Research and Technology Department; Luxembourg Institute of Science and Technology (LIST); L-4422 Belvaux Luxembourg
| | | | - Christophe Detrembleur
- Chemistry Department, Center for Education and Research on Macromolecules (CERM); CESAM Research Unit; University of Liege; 4000 Liège Belgium
| | - Patrick Choquet
- Materials Research and Technology Department; Luxembourg Institute of Science and Technology (LIST); L-4422 Belvaux Luxembourg
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11
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Beregoi M, Evanghelidis A, Diculescu VC, Iovu H, Enculescu I. Polypyrrole Actuator Based on Electrospun Microribbons. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38068-38075. [PMID: 28976177 DOI: 10.1021/acsami.7b13196] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The development of soft actuators by using inexpensive raw materials and straightforward fabrication techniques, aiming at creating and developing muscle like micromanipulators, represents an important challenge nowadays. Providing such devices with biomimetic qualities, for example, sensing different external stimuli, adds even more complexity to the task. We developed electroactive polymer-coated microribbons that undergo conformational changes in response to external physical and chemical parameters. These were prepared following three simple steps. During the first step nylon-6/6 microribbons were fabricated by electrospinning. In a second step the microribbons were one side coated with a metallic layer. Finally, a conducting layer of polypyrrole was added by means of electrochemical deposition. Strips of polypyrrole-coated aligned microribbon meshes were tested as actuators responding to current, pH, and temperature. The electrochemical activity of the microstructured actuators was investigated by recording cyclic voltammograms. Chronopontentiograms for specific current, pH, and temperature values were obtained in electrolytes with different compositions. It was shown that, upon variation of the external stimulus, the actuator undergoes conformational changes due to the reduction processes of the polypyrrole layer. The ability of the actuator to hold and release thin wires, and to collect polystyrene microspheres from the bottom of the electrochemical cell, was also investigated.
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Affiliation(s)
- Mihaela Beregoi
- Functional Nanostructures Group, Multifunctional Materials and Structures Laboratory, National Institute of Materials Physics , 405A Atomistilor Street, 077125, Magurele, Ilfov, Romania
- Advanced Polymer Materials Group, Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest , 1-7 Gh Polizu Street, 011061, Bucharest, Romania
| | - Alexandru Evanghelidis
- Functional Nanostructures Group, Multifunctional Materials and Structures Laboratory, National Institute of Materials Physics , 405A Atomistilor Street, 077125, Magurele, Ilfov, Romania
- Faculty of Physics, University of Bucharest , 405 Atomistilor Street, 077125, Magurele, Ilfov, Romania
| | - Victor C Diculescu
- Functional Nanostructures Group, Multifunctional Materials and Structures Laboratory, National Institute of Materials Physics , 405A Atomistilor Street, 077125, Magurele, Ilfov, Romania
| | - Horia Iovu
- Advanced Polymer Materials Group, Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest , 1-7 Gh Polizu Street, 011061, Bucharest, Romania
| | - Ionut Enculescu
- Functional Nanostructures Group, Multifunctional Materials and Structures Laboratory, National Institute of Materials Physics , 405A Atomistilor Street, 077125, Magurele, Ilfov, Romania
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12
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Li M, Gao L, Schlaich C, Zhang J, Donskyi IS, Yu G, Li W, Tu Z, Rolff J, Schwerdtle T, Haag R, Ma N. Construction of Functional Coatings with Durable and Broad-Spectrum Antibacterial Potential Based on Mussel-Inspired Dendritic Polyglycerol and in Situ-Formed Copper Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35411-35418. [PMID: 28914053 DOI: 10.1021/acsami.7b10541] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A novel surface coating with durable broad-spectrum antibacterial ability was prepared based on mussel-inspired dendritic polyglycerol (MI-dPG) embedded with copper nanoparticles (Cu NPs). The functional surface coating is fabricated via a facile dip-coating process followed by in situ reduction of copper ions with a MI-dPG coating to introduce Cu NPs into the coating matrix. This coating has been demonstrated to possess efficient long-term antibacterial properties against Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), and kanamycin-resistant E. coli through an "attract-kill-release" strategy. The synergistic antibacterial activity of the coating was shown by the combination of two functions of the contact killing, reactive oxygen species production and Cu ions released from the coating. Furthermore, this coating inhibited biofilm formation and showed good compatibility to eukaryotic cells. Thus, this newly developed Cu NP-incorporated MI-dPG surface coating may find potential application in the design of antimicrobial coating, such as implantable devices.
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Affiliation(s)
- Mingjun Li
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Lingyan Gao
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Christoph Schlaich
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Jianguang Zhang
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Ievgen S Donskyi
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Guozhi Yu
- Institut für Biologie, Freie Universität Berlin , Königin-Luise-Str. 1-3, 14195 Berlin, Germany
| | - Wenzhong Li
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Zhaoxu Tu
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Jens Rolff
- Institut für Biologie, Freie Universität Berlin , Königin-Luise-Str. 1-3, 14195 Berlin, Germany
| | - Tanja Schwerdtle
- Institute of Nutritional Science, Department of Food Chemistry, University of Potsdam , Arthur-Scheunert-Allee 114-116, D-14558 Nuthetal, Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
| | - Nan Ma
- Institut für Chemie und Biochemie, Freie Universität Berlin , Takustrasse 3, 14195 Berlin, Germany
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht , 14513 Teltow, Germany
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13
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Abstract
Electroactive polymer actuators such as polypyrrole (PPy) are exciting candidates to drive autonomous devices that require low weight and low power. A simple PPy tri-layer bending type cantilever which operates in the air has been demonstrated previously, but the environmental effect on this actuator is still unknown. The major obstacle in the development of the PPy tri-layer actuator is to create proper packaging that reduces oxidation of the electrolyte and maintains constant displacement. Here, we report the variation in the displacement as well as the charge transfer at the different environmental condition. PPy trilayer actuators were fabricated by depositing polypyrrole on gold-coated porous poly(vinylidene fluoride) (PVDF) using the electro-synthesis method. It has been demonstrated that the charge transfer of tri-layer actuators is more in an inert environment than in open air. In addition, tri-layer actuators show constant deflection and enhancement of life due to the negligible oxidation rate of the electrolyte in an inert environment.
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Abstract
Surface functionalization via molecular design has been a key approach to incorporate new functionalities into existing biomaterials for biomedical application. Mussel-inspired polydopamine (PDA) has aroused great interest as a new route to the functionalization of biomaterials, due to its simplicity and material independency in deposition, favorable interactions with cells, and strong reactivity for secondary functionalization. Herein, this review attempts to highlight the recent findings and progress of PDA in bio-surface functionalization for biomedical applications. The efforts made to elucidate the polymerization mechanism, PDA structure, and the preparation parameters have been discussed. Interactions between PDA coatings and the various cell types involved in different biomedical applications including general cell adhesion, bone regeneration, blood compatibility, and antimicrobial activity have also been highlighted. A brief discussion of post-functionalization of PDA and nanostructured PDA is also provided.
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Affiliation(s)
- Y.H. Ding
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA
| | - M. Floren
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA
- Cardiovascular Pulmonary Research and Developmental Lung Biology Laboratories, University of Colorado Denver, Aurora, CO 80045, USA
| | - W. Tan
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA
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15
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Bagheri H, Banihashemi S, Zandian FK. Microextraction of antidepressant drugs into syringes packed with a nanocomposite consisting of polydopamine, silver nanoparticles and polypyrrole. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1606-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Dai L, He Y, Huang X, Cui X, Wang S, Ge D, Zhao N, Li Y, Sun Y, Shi W. Versatile method for the synthesis of porous nanostructured thin films of conducting polymers and their composites. RSC Adv 2015. [DOI: 10.1039/c5ra02161h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Porous nanostructured FeCl3 was used as template and oxidant simultaneously to synthesize nanostructured films of conducting polymers and their composites.
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17
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Zhang J, Song L, Zhang Z, Chen N, Qu L. Environmentally responsive graphene systems. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:2151-2164. [PMID: 24376152 DOI: 10.1002/smll.201303080] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 10/31/2013] [Indexed: 06/03/2023]
Abstract
Graphene materials have been attracting significant research interest in the past few years, with the recent focuses on graphene-based electronic devices and smart stimulus-responsive systems that have a certain degree of automatism. Owing to its huge specific surface area, large room-temperature electron mobility, excellent mechanical flexibility, exceptionally high thermal conductivity and environmental stability, graphene is identified as a beneficial additive or an effective responding component by itself to improve the conductivity, flexibility, mechanical strength and/or the overall responsive performance of smart systems. In this review article, we aim to present the recent advances in graphene systems that are of spontaneous responses to external stimulations, such as environmental variation in pH, temperature, electric current, light, moisture and even gas ambient. These smart stimulus-responsive graphene systems are believed to have great theoretical and practical interests to a wide range of device applications including actuators, switches, robots, sensors, drug/gene deliveries, etc.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry, Beijing Institute of Technology, Beijing, 100081, P. R. China
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Comparison of Chondroitin Sulfate and Hyaluronic Acid Doped Conductive Polypyrrole Films for Adipose Stem Cells. Ann Biomed Eng 2014; 42:1889-900. [DOI: 10.1007/s10439-014-1023-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 04/29/2014] [Indexed: 12/31/2022]
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19
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Loget G, Wood JB, Cho K, Halpern AR, Corn RM. Electrodeposition of Polydopamine Thin Films for DNA Patterning and Microarrays. Anal Chem 2013; 85:9991-5. [DOI: 10.1021/ac4022743] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gabriel Loget
- Department
of Chemistry, University of California-Irvine, Irvine, California 92697, United States
| | - Jennifer B. Wood
- Department
of Chemistry, University of California-Irvine, Irvine, California 92697, United States
| | - Kyunghee Cho
- Department
of Chemistry, University of California-Irvine, Irvine, California 92697, United States
| | - Aaron R. Halpern
- Department
of Chemistry, University of California-Irvine, Irvine, California 92697, United States
| | - Robert M. Corn
- Department
of Chemistry, University of California-Irvine, Irvine, California 92697, United States
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20
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Sedó J, Saiz-Poseu J, Busqué F, Ruiz-Molina D. Catechol-based biomimetic functional materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013. [PMID: 23180685 DOI: 10.1002/adma.201202343] [Citation(s) in RCA: 477] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Catechols are found in nature taking part in a remarkably broad scope of biochemical processes and functions. Though not exclusively, such versatility may be traced back to several properties uniquely found together in the o-dihydroxyaryl chemical function; namely, its ability to establish reversible equilibria at moderate redox potentials and pHs and to irreversibly cross-link through complex oxidation mechanisms; its excellent chelating properties, greatly exemplified by, but by no means exclusive, to the binding of Fe(3+); and the diverse modes of interaction of the vicinal hydroxyl groups with all kinds of surfaces of remarkably different chemical and physical nature. Thanks to this diversity, catechols can be found either as simple molecular systems, forming part of supramolacular structures, coordinated to different metal ions or as macromolecules mostly arising from polymerization mechanisms through covalent bonds. Such versatility has allowed catechols to participate in several natural processes and functions that range from the adhesive properties of marine organisms to the storage of some transition metal ions. As a result of such an astonishing range of functionalities, catechol-based systems have in recent years been subject to intense research, aimed at mimicking these natural systems in order to develop new functional materials and coatings. A comprehensive review of these studies is discussed in this paper.
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Affiliation(s)
- Josep Sedó
- Centro de Investigación en Nanociencia y Nanotecnología, Campus UAB, Cerdanyola del Vallès, Barcelona, Spain
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21
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Lynge ME, van der Westen R, Postma A, Städler B. Polydopamine--a nature-inspired polymer coating for biomedical science. NANOSCALE 2011; 3:4916-28. [PMID: 22024699 DOI: 10.1039/c1nr10969c] [Citation(s) in RCA: 579] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Polymer coatings are of central importance for many biomedical applications. In the past few years, poly(dopamine) (PDA) has attracted considerable interest for various types of biomedical applications. This feature article outlines the basic chemistry and material science regarding PDA and discusses its successful application from coatings for interfacing with cells, to drug delivery and biosensing. Although many questions remain open, the primary aim of this feature article is to illustrate the advent of PDA on its way to become a popular polymer for bioengineering purposes.
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Iqbal Z, Lai EPC, Avis TJ. Development of polymer-modified magnetic nanoparticles and quantum dots for Escherichia coli binding test. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0712-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Iqbal Z, Alsudir S, Miah M, Lai EPC. Rapid CE-UV binding tests of environmentally hazardous compounds with polymer-modified magnetic nanoparticles. Electrophoresis 2011; 32:2181-7. [DOI: 10.1002/elps.201100106] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 04/08/2011] [Accepted: 04/15/2011] [Indexed: 11/06/2022]
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25
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Pietrzyk A, Suriyanarayanan S, Kutner W, Maligaspe E, Zandler ME, D'Souza F. Molecularly imprinted poly[bis(2,2′-bithienyl)methane] film with built-in molecular recognition sites for a piezoelectric microgravimetry chemosensor for selective determination of dopamine. Bioelectrochemistry 2010; 80:62-72. [DOI: 10.1016/j.bioelechem.2010.03.004] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2009] [Revised: 03/04/2010] [Accepted: 03/07/2010] [Indexed: 11/24/2022]
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