1
|
Abstract
High-performance polymer (HPP)-based engineering materials in tribological applications have been under continuous research over the last few decades. This paper reviewed the recent studies on the sliding wear properties of HPPs and their nanocomposites, which are associated with the intrinsic and extrinsic parameters. In particular, the effects of the intrinsic properties of polymer composites (e.g., mechanical properties of the materials and the types of fillers) and external environmental conditions (e.g., service temperature and lubrication medium) on the formation of transfer layers (TLs) were discussed. The latter would govern the overall friction and wear of polymeric materials in sliding against metallic counterparts. In addition, correlations between the basic mechanical properties of HPPs and their sliding wear behavior were also explored.
Collapse
|
2
|
Wan X, Liu P, Jin X, Xin X, Li P, Yuan J, Shen J. Electrospun PCL/keratin/AuNPs mats with the catalytic generation of nitric oxide for potential of vascular tissue engineering. J Biomed Mater Res A 2018; 106:3239-3247. [DOI: 10.1002/jbm.a.36521] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/20/2018] [Accepted: 08/02/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Xiuzhen Wan
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 People's Republic of China
| | - Pengcheng Liu
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 People's Republic of China
| | - Xingxing Jin
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 People's Republic of China
| | - Xuanxuan Xin
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 People's Republic of China
| | - Pengfei Li
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 People's Republic of China
| | - Jiang Yuan
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 People's Republic of China
| | - Jian Shen
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 People's Republic of China
| |
Collapse
|
3
|
Liu H, Pan C, Zhou S, Li J, Huang N, Dong L. Improving hemocompatibility and accelerating endothelialization of vascular stents by a copper-titanium film. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:1175-82. [DOI: 10.1016/j.msec.2016.08.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 07/28/2016] [Accepted: 08/12/2016] [Indexed: 01/25/2023]
|
4
|
Wonoputri V, Gunawan C, Liu S, Barraud N, Yee LH, Lim M, Amal R. Iron Complex Facilitated Copper Redox Cycling for Nitric Oxide Generation as Nontoxic Nitrifying Biofilm Inhibitor. ACS APPLIED MATERIALS & INTERFACES 2016; 8:30502-30510. [PMID: 27759365 DOI: 10.1021/acsami.6b10357] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study, we developed poly(vinyl chloride) (PVC)-solvent casted mixed metal copper and iron complexes capable of catalytic generation of the antibiofilm nitric oxide (NO) from endogenous nitrite. In the absence of additional reducing agent, we demonstrated that the presence of iron complex facilitates a redox cycling, converting the copper(II) complex to active copper(I) species, which catalyzes the generation of NO from nitrite. Assessed by protein assay and surface coverage analyses, the presence of the mixed metal complexes in systems containing water industry-relevant nitrite-producing nitrifying biofilms was shown to result in a "nontoxic mode" of biofilm suppression, while confining the bacterial growth to the free-floating planktonic phase. Addition of an NO scavenger into the mixed metal system eliminated the antibiofilm effects, therefore validating first, the capability of the mixed metal complexes to catalytically generate NO from the endogenously produced nitrite and second, the antibiofilm effects of the generated NO. The work highlights the development of self-sustained antibiofilm materials that features potential for industrial applications. The novel NO-generating antibiofilm technology diverts from the unfavorable requirement of adding a reducing agent and importantly, the less tendency for development of bacterial resistance.
Collapse
Affiliation(s)
- Vita Wonoputri
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
| | - Cindy Gunawan
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
- ithree Institute, University of Technology Sydney , Sydney, New South Wales 2007, Australia
| | - Sanly Liu
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
| | - Nicolas Barraud
- Genetics of Biofilms Unit, Department of Microbiology, Institut Pasteur , 75015 Paris, France
| | - Lachlan H Yee
- Marine Ecology Research Centre in the School of Environment, Science and Engineering, Southern Cross University , Lismore, New South Wales 2480, Australia
| | - May Lim
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
| | - Rose Amal
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
| |
Collapse
|
5
|
Wonoputri V, Gunawan C, Liu S, Barraud N, Yee LH, Lim M, Amal R. Copper Complex in Poly(vinyl chloride) as a Nitric Oxide-Generating Catalyst for the Control of Nitrifying Bacterial Biofilms. ACS APPLIED MATERIALS & INTERFACES 2015; 7:22148-22156. [PMID: 26418515 DOI: 10.1021/acsami.5b07971] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this study, catalytic generation of nitric oxide by a copper(II) complex embedded within a poly(vinyl chloride) matrix in the presence of nitrite (source of nitric oxide) and ascorbic acid (reducing agent) was shown to effectively control the formation and dispersion of nitrifying bacteria biofilms. Amperometric measurements indicated increased and prolonged generation of nitric oxide with the addition of the copper complex when compared to that with nitrite and ascorbic acid alone. The effectiveness of the copper complex-nitrite-ascorbic acid system for biofilm control was quantified using protein analysis, which showed enhanced biofilm suppression when the copper complex was used in comparison to that with nitrite and ascorbic acid treatment alone. Confocal laser scanning microscopy (CLSM) and LIVE/DEAD staining revealed a reduction in cell surface coverage without a loss of viability with the copper complex and up to 5 mM of nitrite and ascorbic acid, suggesting that the nitric oxide generated from the system inhibits proliferation of the cells on surfaces. Induction of nitric oxide production by the copper complex system also triggered the dispersal of pre-established biofilms. However, the addition of a high concentration of nitrite and ascorbic acid to a pre-established biofilm induced bacterial membrane damage and strongly decreased the metabolic activity of planktonic and biofilm cells, as revealed by CLSM with LIVE/DEAD staining and intracellular adenosine triphosphate measurements, respectively. This study highlights the utility of the catalytic generation of nitric oxide for the long-term suppression and removal of nitrifying bacterial biofilms.
Collapse
Affiliation(s)
- Vita Wonoputri
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, NSW 2052, Australia
| | - Cindy Gunawan
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, NSW 2052, Australia
- ithree Institute, University of Technology Sydney , Sydney, NSW 2007, Australia
| | - Sanly Liu
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, NSW 2052, Australia
| | - Nicolas Barraud
- Centre for Marine Bio-Innovation, The University of New South Wales , Sydney, NSW 2052, Australia
| | - Lachlan H Yee
- Marine Ecology Research Centre in the School of Environment, Science and Engineering, Southern Cross University , Lismore, NSW 2480, Australia
| | - May Lim
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, NSW 2052, Australia
| | - Rose Amal
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales , Sydney, NSW 2052, Australia
| |
Collapse
|
6
|
Ren X, Feng Y, Guo J, Wang H, Li Q, Yang J, Hao X, Lv J, Ma N, Li W. Surface modification and endothelialization of biomaterials as potential scaffolds for vascular tissue engineering applications. Chem Soc Rev 2015; 44:5680-742. [DOI: 10.1039/c4cs00483c] [Citation(s) in RCA: 359] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the recent developments of surface modification and endothelialization of biomaterials in vascular tissue engineering applications.
Collapse
Affiliation(s)
- Xiangkui Ren
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Yakai Feng
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Jintang Guo
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Haixia Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Qian Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jing Yang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Xuefang Hao
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Juan Lv
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Nan Ma
- Institute of Chemistry and Biochemistry
- Free University of Berlin
- D-14195 Berlin
- Germany
| | - Wenzhong Li
- Department of Cardiac Surgery
- University of Rostock
- D-18057 Rostock
- Germany
| |
Collapse
|
7
|
Huang Y, Taylor L, Chen X, Ayres N. Synthesis of a polyurea from a glucose- or mannose-containing N
-alkyl urea peptoid oligomer. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26953] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yongshun Huang
- Department of Chemistry; The University of Cincinnati; P.O. Box 210172, Cincinnati Ohio 45221
| | - Leeanne Taylor
- Department of Chemistry; The University of Cincinnati; P.O. Box 210172, Cincinnati Ohio 45221
| | - Xiaoping Chen
- Department of Chemistry; The University of Cincinnati; P.O. Box 210172, Cincinnati Ohio 45221
| | - Neil Ayres
- Department of Chemistry; The University of Cincinnati; P.O. Box 210172, Cincinnati Ohio 45221
| |
Collapse
|
8
|
Grafting of phosphorylcholine functional groups on polycarbonate urethane surface for resisting platelet adhesion. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:2871-8. [PMID: 23623108 DOI: 10.1016/j.msec.2013.03.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 02/12/2013] [Accepted: 03/03/2013] [Indexed: 12/29/2022]
Abstract
In order to improve the resistance of platelet adhesion on material surface, 2-methacryloyloxyethyl phosphorylcholine (MPC) was grafted onto polycarbonate urethane (PCU) surface via Michael reaction to create biomimetic structure. After introducing primary amine groups via coupling tris(2-aminoethyl)amine (TAEA) onto the polymer surface, the double bond of MPC reacted with the amino group to obtain MPC modified PCU. The modified surface was characterized by Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The results verified that MPC was grafted onto PCU surface by Michael reaction method. The MPC grafted PCU surface had a low water contact angle and a high water uptake. This means that the hydrophilic PC functional groups improved the surface hydrophilicity significantly. In addition, surface morphology of MPC grafted PCU film was imaged by atomic force microscope (AFM). The results showed that the grafted surface was rougher than the blank PCU surface. In addition, platelet adhesion study was evaluated by scanning electron microscopy (SEM) observation. The PCU films after treated with platelet-rich plasma demonstrated that much fewer platelets adhered to the MPC-grafted PCU surface than to the blank PCU surface. The antithrombogenicity of the MPC-grafted PCU surface was determined by the activated partial thromboplastin time (APTT). The result suggested that the MPC modified PCU may have potential application as biomaterials in blood-contacting and some subcutaneously implanted devices.
Collapse
|