1
|
The Effect of Argon Plasma Surface Treatment on Poly(lactic-co-glycolic acid)/Collagen-Based Biomaterials for Bone Tissue Engineering. Biomimetics (Basel) 2022; 7:biomimetics7040218. [PMID: 36546918 PMCID: PMC9776356 DOI: 10.3390/biomimetics7040218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022] Open
Abstract
Nonunion bone fractures can impact the quality of life and represent a major economic burden. Scaffold-based tissue engineering has shown promise as an alternative to bone grafting. Achieving desirable bone reconstruction requires appropriate surface properties, together with optimizing the internal architecture of 3D scaffolds. This study presents the surface modification of poly(lactic-co-glycolic acid) (PLGA), collagen, and PLGA-collagen via an argon plasma treatment. Argon plasma can modify the surface chemistry and topography of biomaterials and improve in vivo integration. Solvent-cast films were prepared using 1,1,1,3,3,3-hexafluoro-2-propanol and characterized via differential scanning calorimetry, thermogravimetric analysis, contact angle measurement, and critical surface tension analysis. For PLGA films, the water contact angle dropped from 70° to 42°, whereas the diiodomethane contact angle reduced from 53° to 32° after the plasma treatment. A set of PLGA-collagen formulations were loaded with nanohydroxyapatite (nHA) and polyethylene glycol (PEG) to enhance their osteoconductivity and hydrophilicity. Then, 3D scaffolds were fabricated using a 3D Bioplotter and characterized via Fourier-transform infrared (FTIR) spectroscopy. A bicinchoninic acid assay (BCA) was used to compare the protein release from the untreated and plasma-treated scaffolds into phosphate-buffered saline (PBS). The plasma-treated scaffolds had a lower protein release, and the difference compared to the untreated scaffolds was statistically significant.
Collapse
|
2
|
Farr N, Thanarak J, Schäfer J, Quade A, Claeyssens F, Green N, Rodenburg C. Understanding Surface Modifications Induced via Argon Plasma Treatment through Secondary Electron Hyperspectral Imaging. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003762. [PMID: 33643809 PMCID: PMC7887591 DOI: 10.1002/advs.202003762] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/10/2020] [Indexed: 06/01/2023]
Abstract
Understanding the effects that sterilization methods have on the surface of a biomaterial is a prerequisite for clinical deployment. Sterilization causes alterations in a material's surface chemistry and surface structures that can result in significant changes to its cellular response. Here we compare surfaces resulting from the application of the industry standard autoclave sterilisation to that of surfaces resulting from the use of low-pressure Argon glow discharge within a novel gas permeable packaging method in order to explore a potential new biomaterial sterilisation method. Material surfaces are assessed by applying secondary electron hyperspectral imaging (SEHI). SEHI is a novel low-voltage scanning electron microscopy based characterization technique that, in addition to capturing topographical images, also provides nanoscale resolution chemical maps by utilizing the energy distribution of emitted secondary electrons. Here, SEHI maps are exploited to assess the lateral distributions of diverse functional groups that are effected by the sterilization treatments. This information combined with a range of conventional surface analysis techniques and a cellular metabolic activity assay reveals persuasive reasons as to why low-pressure argon glow discharge should be considered for further optimization as a potential terminal sterilization method for PGS-M, a functionalized form of poly(glycerol sebacate) (PGS).
Collapse
Affiliation(s)
- Nicholas Farr
- Department of Materials Science and EngineeringSir Robert Hadfield BuildingUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
- Insigneo Institute for In Silico MedicineThe Pam Liversidge BuildingSir Robert Hadfield BuildingUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
| | - Jeerawan Thanarak
- Department of Materials Science and EngineeringSir Robert Hadfield BuildingUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
- Insigneo Institute for In Silico MedicineThe Pam Liversidge BuildingSir Robert Hadfield BuildingUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
| | - Jan Schäfer
- Leibniz Institute for Plasma Science and Technology (INP e.V.)Felix‐Hausdorff‐Str. 2Greifswald17489Germany
| | - Antje Quade
- Leibniz Institute for Plasma Science and Technology (INP e.V.)Felix‐Hausdorff‐Str. 2Greifswald17489Germany
| | - Frederik Claeyssens
- Department of Materials Science and EngineeringSir Robert Hadfield BuildingUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
- Insigneo Institute for In Silico MedicineThe Pam Liversidge BuildingSir Robert Hadfield BuildingUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
| | - Nicola Green
- Department of Materials Science and EngineeringSir Robert Hadfield BuildingUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
- Insigneo Institute for In Silico MedicineThe Pam Liversidge BuildingSir Robert Hadfield BuildingUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
| | - Cornelia Rodenburg
- Department of Materials Science and EngineeringSir Robert Hadfield BuildingUniversity of SheffieldMappin StreetSheffieldS1 3JDUK
| |
Collapse
|
3
|
Trimukhe AM, Pandiyaraj KN, Tripathi A, Melo JS, Deshmukh RR. Plasma Surface Modification of Biomaterials for Biomedical Applications. ADVANCED STRUCTURED MATERIALS 2017. [DOI: 10.1007/978-981-10-3328-5_3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
4
|
Delgado LM, Pandit A, Zeugolis DI. Influence of sterilisation methods on collagen-based devices stability and properties. Expert Rev Med Devices 2014; 11:305-14. [PMID: 24654928 DOI: 10.1586/17434440.2014.900436] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Sterilisation is essential for any implantable medical device in order to prevent infection in patients. The selection of the most appropriate sterilisation method depends on the nature and the physical state of the material to be sterilised; the influence of the sterilisation method on the properties of the device; and the type of the potential contaminant. In this context, herein we review the influence of ethylene oxide, γ-irradiation, e-beam irradiation, gas plasma, peracetic acid and ethanol on structural, biomechanical, biochemical and biological properties of collagen-based devices. Data to-date demonstrate that chemical approaches are associated with cytotoxicity, whilst physical methods are associated with degradation, subject to the device physical characteristics. Thus, the sterilisation method of choice is device dependent.
Collapse
Affiliation(s)
- Luis M Delgado
- Network of Excellence for Functional Biomaterials (NFB), National University of Ireland Galway (NUI Galway), Galway, Ireland
| | | | | |
Collapse
|
5
|
Armentano I, Dottori M, Fortunati E, Mattioli S, Kenny J. Biodegradable polymer matrix nanocomposites for tissue engineering: A review. Polym Degrad Stab 2010. [DOI: 10.1016/j.polymdegradstab.2010.06.007] [Citation(s) in RCA: 482] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
6
|
García JL, Asadinezhad A, Pacherník J, Lehocký M, Junkar I, Humpolíček P, Sáha P, Valášek P. Cell proliferation of HaCaT keratinocytes on collagen films modified by argon plasma treatment. Molecules 2010; 15:2845-56. [PMID: 20428083 PMCID: PMC6257401 DOI: 10.3390/molecules15042845] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 04/15/2010] [Accepted: 04/19/2010] [Indexed: 01/17/2023] Open
Abstract
Argon plasma treatment was used to modify the surface of atelocollagen films using a plasmochemical reactor. To evaluate the effects of the treatment, the untreated and treated samples were characterized by Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), Scanning Electron Microscopy (SEM) imaging, and X-ray Photoelectron Spectroscopy (XPS) techniques. Cell growth was carried out by culturing human immortalized keratinocyte (HaCaT) cells and proliferation was measured via MTT assay. It was observed that argon plasma treatment significantly enhanced the extent of cell proliferation, which was ascribed to the favourable role of plasma treatment in inducing surface oxygen-containing entities together with increasing surface roughness. This can be considered as a potentially promising approach for tissue regeneration purposes.
Collapse
Affiliation(s)
- Jorge López García
- Polymer Centre, Faculty of Technology, Tomas Bata University in Zlín, T.G.M Sq. 275, 76272, Zlín, Czech Republic; E-Mails: (J.L.G.); (A.A.); (P.S.)
| | - Ahmad Asadinezhad
- Polymer Centre, Faculty of Technology, Tomas Bata University in Zlín, T.G.M Sq. 275, 76272, Zlín, Czech Republic; E-Mails: (J.L.G.); (A.A.); (P.S.)
| | - Jiří Pacherník
- Faculty of Sciences, Institute of Experimental Biology, Masaryk University Brno, Kotlářska 2, 61137, Brno, Czech Republic; E-Mail: (J.P.)
| | - Marián Lehocký
- Tomas Bata University in Zlín, T.G.M Sq. 5555, 76001, Zlín, Czech Republic; E-Mails: (P.H.); (P.V.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel: +420608616048; Fax: +420576031444
| | - Ita Junkar
- Plasma Laboratory, Department of Surface Engineering, Jožef Stefan Institute, Jamova cesta 39, SI-1000, Ljubljana, Slovenia; E-Mail: (I.J.)
| | - Petr Humpolíček
- Tomas Bata University in Zlín, T.G.M Sq. 5555, 76001, Zlín, Czech Republic; E-Mails: (P.H.); (P.V.)
| | - Petr Sáha
- Polymer Centre, Faculty of Technology, Tomas Bata University in Zlín, T.G.M Sq. 275, 76272, Zlín, Czech Republic; E-Mails: (J.L.G.); (A.A.); (P.S.)
| | - Pavel Valášek
- Tomas Bata University in Zlín, T.G.M Sq. 5555, 76001, Zlín, Czech Republic; E-Mails: (P.H.); (P.V.)
| |
Collapse
|
7
|
Wuisman PIJM, Smit TH. Bioresorbable polymers: heading for a new generation of spinal cages. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2005; 15:133-48. [PMID: 16292588 PMCID: PMC3489405 DOI: 10.1007/s00586-005-1003-6] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2005] [Revised: 06/16/2005] [Accepted: 07/08/2005] [Indexed: 11/29/2022]
Abstract
The use of polymer-based bioresorbable materials is now expanding to the realm of spinal interbody fusion. Bioresorbable polymers have important advantages over metals, because they are temporary, much less stiff, and radiolucent. Most promising is a group of alpha-polyesters, in particular polylactide acids (PLAs). Their biocompatibility is excellent, and they have sufficient stiffness and strength to provide initial and intermediate-term stability required for bone healing. However, polylactides have characteristics that make them vulnerable to complications if not properly controlled. Degradation rate strongly depends on polymer type, impurities, manufacturing process, sterilization, device size, and the local environment. The fact that larger implants degrade faster is contra-intuitive, and should be considered in the design process. Also optimal surgical techniques, such as careful bone bed preparation, are required for a successful application of these materials. The purpose of this paper is to highlight the specific properties of these bioresorbable polymers and to discuss their potential and limitations. This is illustrated with early preclinical and clinical data.Bioresorbable cage technology is just emerging: their time-engineered degradation characteristics allow controlled dynamization in interbody applications, facilitating spinal fusion. Their radiolucency improves image assessment of fusion healing. Acceptance and use of bioresorbable implants may increase as further research and clinical studies report on their safety, efficacy, and proper usage.
Collapse
Affiliation(s)
- P I J M Wuisman
- Department of Orthopaedic Surgery, Vrije Universiteit Medical Centre, 1007 MB Amsterdam, The Netherlands.
| | | |
Collapse
|
8
|
Nuutinen JP, Clerc C, Virta T, Törmälä P. Effect of gamma, ethylene oxide, electron beam, and plasma sterilization on the behaviour of SR-PLLA fibres in vitro. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2003; 13:1325-36. [PMID: 12555899 DOI: 10.1163/15685620260449723] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of this study was to evaluate the effect of various sterilization processes on the physical and mechanical properties of self-reinforced bioabsorbable fibres made out of polylactide (PLLA). The samples were sterilized using plasma, ethylene oxide (one and two cycles), gamma (25 kGy at room temperature, 25 kGy in dry ice, and 2 x 25 kGy at room temperature), and electron beam (15, 25, and 55 kGy) sterilization. The intrinsic viscosity, crystallinity, and mechanical properties (modulus of elasticity, yield strength, and ultimate tensile strength) were tested before and immediately after each sterilization treatment, as well as up to 30 weeks in vitro. Compared with unsterilized fibres, the intrinsic viscosity was markedly decreased after radiation sterilization (gamma and electron beam) and the loss in mechanical properties was accelerated during in vitro degradation. Plasma and ethylene oxide (one and two cycles) did not markedly alter the properties of the samples after sterilization or during in vitro degradation. These data are important for determining the effect of various sterilization processes on the physical and mechanical properties of polylactide-based materials and can be used to predict how fast degradation of the mechanical properties of the self-reinforced PLLA will occur. They can also be used to tailor the degradation kinetics to optimize implant design.
Collapse
Affiliation(s)
- Juha-Pekka Nuutinen
- Institute of Biomaterials, Tampere University of Technology, PO Box 589, FIN-33101, Tampere, Finland
| | | | | | | |
Collapse
|