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Kosobrodova E, Kondyurin A, Solodko V, Weiss AS, McKenzie DR, Bilek MMM. Covalent Biofunctionalization of the Inner Surfaces of a Hollow-Fiber Capillary Bundle Using Packed-Bed Plasma Ion Implantation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:32163-32174. [PMID: 32531163 DOI: 10.1021/acsami.0c07070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Hollow-fiber capillary bundles are widely used in the production of medical devices for blood oxygenation and purification purposes such as in cardiopulmonary bypass, hemodialysis, and hemofiltration, but the blood interfacing inner surfaces of these capillaries provide poor hemocompatibility. Here, we present a novel method of packed-bed plasma ion implantation (PBPII) for the modification of the inner surfaces of polymeric hollow-fiber bundles enclosed in a cassette. The method is simple and can be performed on an intact hollow-fiber bundle cassette by the placement of a hollow cylindrical electrode, connected to a negative high-voltage pulse generator, around the cassette. The method does not require the insertion of electrodes inside the capillaries or the cassette. Nitrogen gas is fed into the capillaries inside the cassette by connecting the inlet of the cassette to a gas source. Upon the application of negative high-voltage bias pulses to the electrode, plasma is ignited inside the cassette, achieving the surface modification of both the internal and external surfaces of the capillaries. Fourier transform infrared-attenuated total reflectance spectroscopy of the PBPII-treated capillaries revealed the formation of aromatic C═C bonds, indicating the progressive carbonization of the capillary surfaces. The PBPII treatment was found to be uniform along the capillaries and independent of the radial position in the cassette. Atomic force microscopy of cross sections through the capillaries revealed that the increased stiffness associated with the carbonized layer on the inner surface of the PBPII-treated capillary has a depth (∼40 nm) consistent with that expected for ions accelerated by the applied bias voltage. The modified internal surfaces of the capillary bundle showed a greatly increased wettability and could be biofunctionalized by covalently immobilizing protein directly from the buffer solution. The direct, reagent-free protein immobilization was demonstrated using tropoelastin as an example protein. Covalent binding of the protein was confirmed by its resistance to removal by hot sodium dodecyl sulfate detergent washing, which is known to disrupt physical binding.
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Affiliation(s)
- Elena Kosobrodova
- School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Alexey Kondyurin
- School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Vladislav Solodko
- School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Anthony S Weiss
- Charles Perkins Centre, University of Sydney, Sydney, New South Wales 2006, Australia
| | - David R McKenzie
- School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia
- Sydney Nano Institute, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Marcela M M Bilek
- School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia
- Charles Perkins Centre, University of Sydney, Sydney, New South Wales 2006, Australia
- School of Biomedical Engineering, University of Sydney, Sydney, New South Wales 2006, Australia
- Sydney Nano Institute, University of Sydney, Sydney, New South Wales 2006, Australia
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Tran C, Yasir M, Dutta D, Eswaramoorthy N, Suchowerska N, Willcox M, McKenzie DR. Single Step Plasma Process for Covalent Binding of Antimicrobial Peptides on Catheters To Suppress Bacterial Adhesion. ACS APPLIED BIO MATERIALS 2019; 2:5739-5748. [DOI: 10.1021/acsabm.9b00776] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Clara Tran
- School of Physics, The University of Sydney, Camperdown, New South Wales 2006, Australia
| | - Muhammad Yasir
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
| | - Debarun Dutta
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
- Optometry and Vision Science, Aston Optometry School, Aston University, Birmingham, U.K
| | - Nithya Eswaramoorthy
- School of Physics, The University of Sydney, Camperdown, New South Wales 2006, Australia
| | | | - Mark Willcox
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
| | - David R. McKenzie
- School of Physics, The University of Sydney, Camperdown, New South Wales 2006, Australia
- VectorLab, Chris O’Brien Lifehouse, Camperdown, New South Wales, Australia
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Parangusan H, Ponnamma D, AlMaadeed MAA. Toward High Power Generating Piezoelectric Nanofibers: Influence of Particle Size and Surface Electrostatic Interaction of Ce-Fe 2O 3 and Ce-Co 3O 4 on PVDF. ACS OMEGA 2019; 4:6312-6323. [PMID: 31459771 PMCID: PMC6648750 DOI: 10.1021/acsomega.9b00243] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 02/25/2019] [Indexed: 05/28/2023]
Abstract
Development of flexible piezoelectric nanogenerator (PENG) is a real challenge for the next-generation energy-harvesting applications. In this paper, we report highly flexible PENGs based on poly(vinylidene fluoride) (PVDF)/2 wt % Ce-Fe2O3 and PVDF/2 wt % Ce-Co3O4 nanocomposite fibers. The incorporation of magnetic Ce-Fe2O3 and Ce-Co3O4 greatly affects the structural properties of PVDF nanofibers, especially the polymeric β and γ phases. In addition, the new composites enhanced the interfacial compatibility through electrostatic filler-polymer interactions. Both PVDF/Ce-Fe2O3 and PVDF/Ce-Co3O4 nanofibers-based PENGs, respectively, produce peak-to-peak output voltages of 20 and 15 V, respectively, with the corresponding output currents of 0.010 and 0.005 μA/cm2 under the force of 2.5 N. Enhanced output performance of the flexible nanogenerator is correlated with the electroactive polar phases generated within the PVDF, in the presence of the nanomaterials. The designed nanogenerators respond to human wrist movements with the highest output voltage of 0.15 V, for the PVDF/Ce-Fe2O3 when subjected to hand movements. The overall piezoelectric power generation is correlated with the nanoparticle size and the existing filler-polymer and ion-dipole interactions.
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Affiliation(s)
| | | | - Mariam Al Ali AlMaadeed
- Materials
Science & Technology Program (MATS), College of Arts & Sciences, Qatar University, Doha 2713, Qatar
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Kondyurin A, Tsoutas K, Latour QX, Higgins MJ, Moulton SE, McKenzie DR, Bilek MMM. Structural Analysis and Protein Functionalization of Electroconductive Polypyrrole Films Modified by Plasma Immersion Ion Implantation. ACS Biomater Sci Eng 2017; 3:2247-2258. [DOI: 10.1021/acsbiomaterials.7b00369] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexey Kondyurin
- Applied
and Plasma Physics, School of Physics, University of Sydney, A28 Physics
Road, Sydney, New South Wales 2006, Australia
| | - Kostadinos Tsoutas
- Applied
and Plasma Physics, School of Physics, University of Sydney, A28 Physics
Road, Sydney, New South Wales 2006, Australia
| | - Quentin-Xavier Latour
- Applied
and Plasma Physics, School of Physics, University of Sydney, A28 Physics
Road, Sydney, New South Wales 2006, Australia
| | - Michael J. Higgins
- ARC
Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Simon E. Moulton
- ARC
Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - David R. McKenzie
- Applied
and Plasma Physics, School of Physics, University of Sydney, A28 Physics
Road, Sydney, New South Wales 2006, Australia
| | - Marcela M. M. Bilek
- Applied
and Plasma Physics, School of Physics, University of Sydney, A28 Physics
Road, Sydney, New South Wales 2006, Australia
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Vanags LZ, Tan JTM, Santos M, Michael PS, Ali Z, Bilek MMM, Wise SG, Bursill CA. Plasma activated coating immobilizes apolipoprotein A-I to stainless steel surfaces in its bioactive form and enhances biocompatibility. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:2141-2150. [PMID: 28668625 DOI: 10.1016/j.nano.2017.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 05/24/2017] [Accepted: 06/21/2017] [Indexed: 11/29/2022]
Abstract
We utilized a plasma activated coating (PAC) to covalently bind the active component of high density lipoproteins (HDL), apolipoprotein (apo) A-I, to stainless steel (SS) surfaces. ApoA-I suppresses restenosis and thrombosis and may therefore improve SS stent biocompatibility. PAC-coated SS significantly increased the covalent attachment of apoA-I, compared to SS alone. In static and dynamic flow thrombosis assays, PAC+apoA-I inhibited thrombosis and reduced platelet activation marker p-selectin. PAC+apoA-I reduced smooth muscle cell attachment and proliferation, and augmented EC attachment to PAC. We then coated PAC onto murine SS stents and found it did not peel or delaminate following crimping/expansion. ApoA-I was immobilized onto PAC-SS stents and was retained as a monolayer when exposed to pulsatile flow in vivo in a murine stent model. In conclusion, ApoA-I immobilized on PAC withstands pulsatile flow in vivo and retains its bioactivity, exhibiting anti-thrombotic and anti-restenotic properties, demonstrating the potential to improve stent biocompatibility.
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Affiliation(s)
- Laura Z Vanags
- The Heart Research Institute, Sydney, New South Wales, Australia; Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.
| | - Joanne T M Tan
- The Heart Research Institute, Sydney, New South Wales, Australia; Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.
| | - Miguel Santos
- The Heart Research Institute, Sydney, New South Wales, Australia; Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia; School of Physics, University of Sydney, Sydney, New South Wales, Australia.
| | - Praveesuda S Michael
- The Heart Research Institute, Sydney, New South Wales, Australia; Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.
| | - Ziad Ali
- Translational Medicine, University of Columbia, NY, New York, USA.
| | - Marcela M M Bilek
- School of Physics, University of Sydney, Sydney, New South Wales, Australia.
| | - Steven G Wise
- The Heart Research Institute, Sydney, New South Wales, Australia; Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia; School of Molecular Bioscience, University of Sydney, Sydney, New South Wales, Australia.
| | - Christina A Bursill
- The Heart Research Institute, Sydney, New South Wales, Australia; Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.
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Care A, Petroll K, Gibson ESY, Bergquist PL, Sunna A. Solid-binding peptides for immobilisation of thermostable enzymes to hydrolyse biomass polysaccharides. BIOTECHNOLOGY FOR BIOFUELS 2017; 10:29. [PMID: 28184244 PMCID: PMC5289021 DOI: 10.1186/s13068-017-0715-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 01/19/2017] [Indexed: 05/04/2023]
Abstract
BACKGROUND Solid-binding peptides (SBPs) bind strongly to a diverse range of solid materials without the need for any chemical reactions. They have been used mainly for the functionalisation of nanomaterials but little is known about their use for the immobilisation of thermostable enzymes and their feasibility in industrial-scale biocatalysis. RESULTS A silica-binding SBP sequence was fused genetically to three thermostable hemicellulases. The resulting enzymes were active after fusion and exhibited identical pH and temperature optima but differing thermostabilities when compared to their corresponding unmodified enzymes. The silica-binding peptide mediated the efficient immobilisation of each enzyme onto zeolite, demonstrating the construction of single enzyme biocatalytic modules. Cross-linked enzyme aggregates (CLEAs) of enzyme preparations either with or without zeolite immobilisation displayed greater activity retention during enzyme recycling than those of free enzymes (without silica-binding peptide) or zeolite-bound enzymes without any crosslinking. CLEA preparations comprising all three enzymes simultaneously immobilised onto zeolite enabled the formation of multiple enzyme biocatalytic modules which were shown to degrade several hemicellulosic substrates. CONCLUSIONS The current work introduced the construction of functional biocatalytic modules for the hydrolysis of simple and complex polysaccharides. This technology exploited a silica-binding SBP to mediate effectively the rapid and simple immobilisation of thermostable enzymes onto readily-available and inexpensive silica-based matrices. A conceptual application of biocatalytic modules consisting of single or multiple enzymes was validated by hydrolysing various hemicellulosic polysaccharides.
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Affiliation(s)
- Andrew Care
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, Australia
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Macquarie University, Sydney, Australia
| | - Kerstin Petroll
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, Australia
| | - Emily S. Y. Gibson
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, Australia
| | - Peter L. Bergquist
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, Australia
- Department of Molecular Medicine & Pathology, Medical School, University of Auckland, Auckland, New Zealand
- Biomolecular Discovery and Design Research Centre, Macquarie University, Sydney, Australia
| | - Anwar Sunna
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, Australia
- Biomolecular Discovery and Design Research Centre, Macquarie University, Sydney, Australia
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Immobilization of Glycoside Hydrolase Families GH1, GH13, and GH70: State of the Art and Perspectives. Molecules 2016; 21:molecules21081074. [PMID: 27548117 PMCID: PMC6274110 DOI: 10.3390/molecules21081074] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 08/11/2016] [Accepted: 08/12/2016] [Indexed: 12/20/2022] Open
Abstract
Glycoside hydrolases (GH) are enzymes capable to hydrolyze the glycosidic bond between two carbohydrates or even between a carbohydrate and a non-carbohydrate moiety. Because of the increasing interest for industrial applications of these enzymes, the immobilization of GH has become an important development in order to improve its activity, stability, as well as the possibility of its reuse in batch reactions and in continuous processes. In this review, we focus on the broad aspects of immobilization of enzymes from the specific GH families. A brief introduction on methods of enzyme immobilization is presented, discussing some advantages and drawbacks of this technology. We then review the state of the art of enzyme immobilization of families GH1, GH13, and GH70, with special attention on the enzymes β-glucosidase, α-amylase, cyclodextrin glycosyltransferase, and dextransucrase. In each case, the immobilization protocols are evaluated considering their positive and negative aspects. Finally, the perspectives on new immobilization methods are briefly presented.
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Senthilkumar N, Babu KJ, Gnana kumar G, Kim AR, Yoo DJ. Flexible Electrospun PVdF-HFP/Ni/Co Membranes for Efficient and Highly Selective Enzyme Free Glucose Detection. Ind Eng Chem Res 2014. [DOI: 10.1021/ie500755m] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Nangan Senthilkumar
- Department
of Physical Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | | | - Georgepeter Gnana kumar
- Department
of Physical Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | - Ae Rhan Kim
- Department
of Chemistry, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Dong Jin Yoo
- Department of Energy Storage/Conversion Engineering, R&D Education Center for Specialized Graduate School of Hydrogen and Fuel Cells Engineering, and Hydrogen and Fuel Cell Research Center, Chonbuk National University, Jeonju 561-756, Republic of Korea
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Nosworthy NJ, Kondyurin A, Bilek MM, McKenzie DR. Ion implantation treatment of beads for covalent binding of molecules: Application to bioethanol production using thermophilic beta-glucosidase. Enzyme Microb Technol 2014; 54:20-4. [DOI: 10.1016/j.enzmictec.2013.09.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 09/20/2013] [Accepted: 09/25/2013] [Indexed: 11/17/2022]
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10
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Tran CTH, Nosworthy NJ, Kondyurin A, McKenzie DR, Bilek MMM. CelB and β-glucosidase immobilization for carboxymethyl cellulose hydrolysis. RSC Adv 2013. [DOI: 10.1039/c3ra43666g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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