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Chen Z, Aziz T, Sun H, Ullah A, Ali A, Cheng L, Ullah R, Khan FU. Advances and Applications of Cellulose Bio-Composites in Biodegradable Materials. JOURNAL OF POLYMERS AND THE ENVIRONMENT 2023; 31:2273-2284. [PMID: 0 DOI: 10.1007/s10924-022-02561-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/17/2022] [Indexed: 05/27/2023]
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Atmospheric Pressure Plasma Polymerisation of D-Limonene and Its Antimicrobial Activity. Polymers (Basel) 2023; 15:polym15020307. [PMID: 36679188 PMCID: PMC9861354 DOI: 10.3390/polym15020307] [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: 10/04/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 01/11/2023] Open
Abstract
Antibacterial coating is necessary to prevent biofilm-forming bacteria from colonising medical tools causing infection and sepsis in patients. The recent coating strategies such as immobilisation of antimicrobial materials and low-pressure plasma polymerisation may require multiple processing steps involving a high-vacuum system and time-consuming process. Some of those have limited efficacy and durability. Here, we report a rapid and one-step atmospheric pressure plasma polymerisation (APPP) of D-limonene to produce nano-thin films with hydrophobic-like properties for antibacterial applications. The influence of plasma polymerisation time on the thickness, surface characteristic, and chemical composition of the plasma-polymerised films was systematically investigated. Results showed that the nano-thin films deposited at 1 min on glass substrate are optically transparent and homogenous, with a thickness of 44.3 ± 4.8 nm, a smooth surface with an average roughness of 0.23 ± 0.02 nm. For its antimicrobial activity, the biofilm assay evaluation revealed a significant 94% decrease in the number of Escherichia coli (E. coli) compared to the control sample. More importantly, the resultant nano-thin films exhibited a potent bactericidal effect that can distort and rupture the membrane of the treated bacteria. These findings provide important insights into the development of bacteria-resistant and biocompatible coatings on the arbitrary substrate in a straightforward and cost-effective route at atmospheric pressure.
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Gholizadeh E, Naim M, Belibel R, Hlawaty H, Barbaud C. Novelty in the development of biodegradable polymer coatings for biomedical devices: paclitaxel grafting on PDMMLA derivatives. Des Monomers Polym 2022; 25:64-74. [PMID: 35341119 PMCID: PMC8942506 DOI: 10.1080/15685551.2022.2054116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Biocompatible and biodegradable polymers are widely used in the medical field. In some cases, the biopolymer is accompanied by an active drug, which is delivered locally in a controlled manner in order to improve the healing conditions. Poly([R,S]-3,3-dimethylmalic acid) (PDMMLA) is a synthetic amphiphilic biodegradable polymer, which unlike PLA, can be chemically modified to adapt hydrophilic/hydrophobic balance, degradation kinetics, and physicochemical and biological properties. It may contain a lateral alkyl group or a functional group for coupling bioactive molecules to release during its degradation. In this work, we realized the chemical grafting of paclitaxel (PTX), a microtubule stabilizing anti-cancer agent on PDMMLA derivatives bio-polyesters following a Steglich esterification protocol. 1D and 2D NMR analyses validated the reaction with 10% (using 0.1 equivalent) of PTX on the copolymer PDMMLAH40-co-Hex60 (PDMMLA 40/60) and a maximal PTX grafting rate of 55% on the homopolymer PDMMLAH (PDMMLA 100/0). In vitro adhesion and cytotoxicity assays were carried out on HUVEC cells with PDMMLA 40/60, PDMMLA-PTX 30/10/60 and PLA.
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Affiliation(s)
- Elnaz Gholizadeh
- Institut Galilée, Laboratory for Vascular Transitional Science (LVTS), Université Sorbonne Paris Nord, Villetaneuse, France
| | - Meriem Naim
- Smbh, Laboratory for Vascular Transitional Science (LVTS), Université Sorbonne Paris Nord, Bobigny, France
| | - Rima Belibel
- Université Sorbonne Paris Nord, KymiaNova, Châtenay Malabry, France
| | - Hanna Hlawaty
- Smbh, Laboratory for Vascular Transitional Science (LVTS), Université Sorbonne Paris Nord, Bobigny, France
| | - Christel Barbaud
- Institut Galilée, Laboratory for Vascular Transitional Science (LVTS), Université Sorbonne Paris Nord, Villetaneuse, France
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Boudaghi A, Foroutan M. Investigation of the wettability of chemically heterogeneous smooth and rough surfaces using molecular dynamics simulation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118017] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Small changes in PDMMLA structure influence the adsorption behavior of ECM proteins and syndecan-4 on PDMMLA derivative surfaces: Experimental validation by tensiometric surface force measurements. Colloids Surf B Biointerfaces 2020; 193:111031. [DOI: 10.1016/j.colsurfb.2020.111031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/28/2020] [Accepted: 04/09/2020] [Indexed: 12/02/2022]
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Gholizadeh E, Belibel R, Bachelart T, Bounadji C, Barbaud C. Chemical grafting of cholesterol on monomer and PDMMLA polymers, a step towards the development of new polymers for biomedical applications. RSC Adv 2020; 10:32602-32608. [PMID: 35516467 PMCID: PMC9056615 DOI: 10.1039/d0ra06033j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 08/23/2020] [Indexed: 11/21/2022] Open
Abstract
Racemic α,α,β-trisubstituted β-lactones are the monomer units of poly((R,S)-3,3-dimethylmalic acid) (PDMMLA) derivatives, new biopolyesters showing great potential for biomedical applications. Using different groups during the synthesis of these β-lactones allows a tailored synthesis of PDMMLA copolymers with adjustable hydrophilic/phobic ratio. The degradation kinetics of the employed material is one of the most important criteria in the development of bioresorbable implants. The degradation time of PDMMLA derivatives can be controlled using different β-lactones of different hydrophilicity levels during the polymerization stage. Furthermore, PDMMLA has chemically available groups on its side chain allowing to graft functional groups on the polymer via covalent bonds. In this work, following a Steglich esterification protocol, the chemical grafting of cholesterol was carried out on a PDMMLA monomer derived β-lactone as well as on homopolymer PDMMLA-H, and copolymer PDMMLAH40-co-Hex60 (PDMMLA 40/60). Nuclear magnetic resonance (NMR) analyses of the products confirm and quantify the grafting ratio. 100% of cholesterol grafting has been realized on the homopolymer PDMMLA-H giving PDMMLA-Chol, and 10% on the copolymer PDMMLA 40/60, giving PDMMLAH30-ter-Chol10-ter-Hex60 (PDMMLA-Chol 30/10/60) as wished. Fourier-transform infrared (FT-IR) spectra, elemental analysis on the β-lactones and thermogravimetric analyses on the polymers also confirm the chemical modification of the products.
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Affiliation(s)
- Elnaz Gholizadeh
- Université Sorbonne Paris Nord, Laboratory for Vascular Transitional Science (LVTS), INSERM UMR 1148 Villetaneuse F-93430 France +33 149403357
| | | | - Thomas Bachelart
- Université Sorbonne Paris Nord, Laboratory for Vascular Transitional Science (LVTS), INSERM UMR 1148 Villetaneuse F-93430 France +33 149403357
| | - Chérifa Bounadji
- Université Sorbonne Paris Nord, Laboratory for Vascular Transitional Science (LVTS), INSERM UMR 1148 Villetaneuse F-93430 France +33 149403357
| | - Christel Barbaud
- Université Sorbonne Paris Nord, Laboratory for Vascular Transitional Science (LVTS), INSERM UMR 1148 Villetaneuse F-93430 France +33 149403357
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7
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Belibel R, Sali S, Marinval N, Garcia-Sanchez A, Barbaud C, Hlawaty H. PDMMLA derivatives as a promising cardiovascular metallic stent coating: Physicochemical and biological evaluation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111284. [PMID: 32919645 DOI: 10.1016/j.msec.2020.111284] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/25/2020] [Accepted: 07/10/2020] [Indexed: 01/24/2023]
Abstract
To reduce the risk of intra-stent restenosis and improve hemocompatibility of biomaterials, the therapeutic re-endothelialization is required. Indeed, the behavior of endothelial cells is affected by several factors such as wettability and surface energy of biomaterial in contact with cells and blood. The aim of this study was to evaluate the physicochemical and biological properties of new polymers derived from poly((R,S)-3,3-dimethylmalic acid) (PDMMLA) that will be used as cardiovascular stents coating. In fact, a comprehensive study of the roughness and topography and the thermal and rheological properties of these materials were investigated. Furthermore, this was correlated with the biological response of human vascular endothelial cells (HUVECs) and monocytes (MM6) to these biomaterials. Our results revealed very interesting surface properties of PDMMLAs, excellent thermal and thermo-mechanical properties and a suitable biological response. All these properties can be adjusted by simple chemical modification of the side chain of the studied polymers.
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Affiliation(s)
- R Belibel
- KymiaNova, F-92290 Châtenay Malabry, France
| | - S Sali
- Université Sorbonne Paris Nord, Institut Galilée, Laboratory for Vascular Transitional Science (LVTS), INSERM UMR 1148, F-93430 Villetaneuse, France
| | - N Marinval
- Université Sorbonne Paris Nord, SMBH, Laboratory for Vascular Translational Science, INSERM UMR 1148, Groupe Biothérapies et Glycoconjugués, F-93400 Bobigny, France
| | - A Garcia-Sanchez
- Université Sorbonne Paris Nord, Institut Galilée, Laboratoire des Sciences des Procédés et des Matériaux, CNRS UPR 3407, F-93430, Villetaneuse, France
| | - C Barbaud
- Université Sorbonne Paris Nord, Institut Galilée, Laboratory for Vascular Transitional Science (LVTS), INSERM UMR 1148, F-93430 Villetaneuse, France.
| | - H Hlawaty
- Université Sorbonne Paris Nord, SMBH, Laboratory for Vascular Translational Science, INSERM UMR 1148, Groupe Biothérapies et Glycoconjugués, F-93400 Bobigny, France
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Valencia-Gómez LE, Martel-Estrada SA, Vargas-Requena CL, Acevedo-Fernández JJ, Rodríguez-González CA, Hernández-Paz JF, Santos-Rodríguez E, Olivas-Armendáriz I. Characterization and evaluation of a novel O-carboxymethyl chitosan films with Mimosa tenuiflora extract for skin regeneration and wound healing. J BIOACT COMPAT POL 2019. [DOI: 10.1177/0883911519885976] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In this study, films of O-carboxymethyl chitosan with Mimosa tenuiflora extract were manufactured, characterized, and evaluated. In this work, both the synthesis of O-carboxymethyl chitosan and the extraction of the active ingredient of Mimosa tenuiflora extract from the cortex are described. First, the extract of Mimosa tenuiflora in water was obtained by precipitation with ethanol, filtering, and concentrating. Subsequently, a study was conducted of scratch wound healing to determine the optimal concentration of extract to be used in the manufacture of films. The produced O-carboxymethyl chitosan films and the Mimosa tenuiflora extract were mixed, and their chemical composition, tensile properties, and wettability were characterized by Fourier-transform infrared spectroscopy, mechanical tests, and contact angle measurement. The antimicrobial properties of the films were tested by turbidimetry using two types of bacteria. In addition, a study of the enzymatic degradation of the films with the enzyme lysozyme was performed. Finally, in vitro studies to assess the biocompatibility and cytotoxicity of films with fibroblastic cells were carried out as well as the kinetic analysis of healing in mice. It was found that the addition of Mimosa tenuiflora extract in the polymer matrix of the films made with O-carboxymethyl chitosan improves the proliferation of fibroblast and accelerates wound healing, thus providing a novel biomaterial for skin regeneration.
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Affiliation(s)
| | | | | | | | | | | | | | - Imelda Olivas-Armendáriz
- Instituto de Ingeniería y Tecnología, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez, México
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Velioglu ZB, Pulat D, Demirbakan B, Ozcan B, Bayrak E, Erisken C. 3D-printed poly(lactic acid) scaffolds for trabecular bone repair and regeneration: scaffold and native bone characterization. Connect Tissue Res 2019; 60:274-282. [PMID: 30058375 DOI: 10.1080/03008207.2018.1499732] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE Study objectives were set to (i) fabricate 3D-printed scaffolds/grafts with varying pore sizes, (ii) characterize surface and mechanical properties of scaffolds, (iii) characterize biomechanical properties of bovine trabecular bone, and (iv) evaluate attachment and proliferation of human bone marrow mesenchymal stem cells on 3D-printed scaffolds. MATERIALS AND METHODS Poly(lactic acid) scaffolds were fabricated using 3D-printing technology, and characterized in terms of their surface as well as compressive mechanical properties. Trabecular bone specimens were obtained from bovine and characterized biomechanically under compression. Human bone marrow mesenchymal stem cells were seeded on the scaffolds, and their attachment capacity and proliferation were evaluated. RESULTS Contact angles and compressive moduli of scaffolds decreased with increasing pore dimensions of 0.5 mm, 1.0 mm, and 1.25 mm. Biomechanical characterization of trabecular bone yielded higher modulus values as compared to scaffolds with all pore sizes studied. Human bone marrow mesenchymal stem cells attached to the surfaces of all scaffolds yet proliferated more on scaffolds with 1.25 mm pore size. CONCLUSIONS Collectively, given the similarity between 3D-printed scaffolds and native bone in terms of pore size, porosity, and appropriate mechanical properties of scaffolds, the 3D-printed poly(lactic acid) (PLA) scaffolds of this study appear as candidate substitutes for bone repair and regeneration.
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Affiliation(s)
- Zeynep Busra Velioglu
- a Department of Biomedical Engineering , TOBB University of Economics and Technology , Ankara , Turkey
| | - Deniz Pulat
- a Department of Biomedical Engineering , TOBB University of Economics and Technology , Ankara , Turkey
| | - Beril Demirbakan
- a Department of Biomedical Engineering , TOBB University of Economics and Technology , Ankara , Turkey
| | - Burak Ozcan
- a Department of Biomedical Engineering , TOBB University of Economics and Technology , Ankara , Turkey
| | - Ece Bayrak
- a Department of Biomedical Engineering , TOBB University of Economics and Technology , Ankara , Turkey
| | - Cevat Erisken
- a Department of Biomedical Engineering , TOBB University of Economics and Technology , Ankara , Turkey.,b Department of Chemical and Materials Engineering , Nazarbayev University , Astana , Kazakhstan
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Bartkowiak A, Rojewska M, Hyla K, Zembrzuska J, Prochaska K. Surface and swelling properties of mucoadhesive blends and their ability to release fluconazole in a mucin environment. Colloids Surf B Biointerfaces 2018; 172:586-593. [DOI: 10.1016/j.colsurfb.2018.09.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 08/27/2018] [Accepted: 09/05/2018] [Indexed: 11/27/2022]
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11
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Stowell CET, Wang Y. Quickening: Translational design of resorbable synthetic vascular grafts. Biomaterials 2018; 173:71-86. [PMID: 29772461 PMCID: PMC6492619 DOI: 10.1016/j.biomaterials.2018.05.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/19/2018] [Accepted: 05/03/2018] [Indexed: 12/17/2022]
Abstract
Traditional tissue-engineered vascular grafts have yet to gain wide clinical use. The difficulty of scaling production of these cell- or biologic-based products has hindered commercialization. In situ tissue engineering bypasses such logistical challenges by using acellular resorbable scaffolds. Upon implant, the scaffolds become remodeled by host cells. This review describes the scientific and translational advantages of acellular, synthetic vascular grafts. It surveys in vivo results obtained with acellular synthetics over their fifty years of technological development. Finally, it discusses emerging principles, highlights strategic considerations for designers, and identifies questions needing additional research.
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Affiliation(s)
| | - Yadong Wang
- Meinig School of Biomedical Engineering, Cornell University, USA.
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12
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Montagna LS, Montanheiro TLDA, Borges AC, Koga‐Ito CY, Lemes AP, Rezende MC. Influence of photodegradation with UV radiation in biotreatment with
Paecilomyces variotti
on
PHBV
/GNS nanocomposites. IET Nanobiotechnol 2018. [DOI: 10.1049/iet-nbt.2017.0020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Larissa Stieven Montagna
- Technology Laboratory of Polymers and Biopolymers (TecPBio)Institute of Science and Technology, Federal University of São Paulo (UNIFESP)Talim 330São José dos CamposSPBrazil
| | - Thaís Larissa do Amaral Montanheiro
- Technology Laboratory of Polymers and Biopolymers (TecPBio)Institute of Science and Technology, Federal University of São Paulo (UNIFESP)Talim 330São José dos CamposSPBrazil
| | - Aline Chiodi Borges
- Department of Environmental EngineeringInstitute of Science and Technology, São Paulo State University (UNESP)Rodovia Presidente Dutra, Km 137.8São José dos CamposSPBrazil
| | - Cristiane Yumi Koga‐Ito
- Department of Environmental EngineeringInstitute of Science and Technology, São Paulo State University (UNESP)Rodovia Presidente Dutra, Km 137.8São José dos CamposSPBrazil
| | - Ana Paula Lemes
- Technology Laboratory of Polymers and Biopolymers (TecPBio)Institute of Science and Technology, Federal University of São Paulo (UNIFESP)Talim 330São José dos CamposSPBrazil
| | - Mirabel Cerqueira Rezende
- Technology Laboratory of Polymers and Biopolymers (TecPBio)Institute of Science and Technology, Federal University of São Paulo (UNIFESP)Talim 330São José dos CamposSPBrazil
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Al-Jumaili A, Bazaka K, Jacob MV. Retention of Antibacterial Activity in Geranium Plasma Polymer Thin Films. NANOMATERIALS 2017; 7:nano7090270. [PMID: 28902134 PMCID: PMC5618381 DOI: 10.3390/nano7090270] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/05/2017] [Accepted: 09/05/2017] [Indexed: 01/21/2023]
Abstract
Bacterial colonisation of biomedical devices demands novel antibacterial coatings. Plasma-enabled treatment is an established technique for selective modification of physicochemical characteristics of the surface and deposition of polymer thin films. We investigated the retention of inherent antibacterial activity in geranium based plasma polymer thin films. Attachment and biofilm formation by Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli was significantly reduced on the surfaces of samples fabricated at 10 W radio frequency (RF) power, compared to that of control or films fabricated at higher input power. This was attributed to lower contact angle and retention of original chemical functionality in the polymer films fabricated under low input power conditions. The topography of all surfaces was uniform and smooth, with surface roughness of 0.18 and 0.69 nm for films fabricated at 10 W and 100 W, respectively. Hardness and elastic modules of films increased with input power. Independent of input power, films were optically transparent within the visible wavelength range, with the main absorption at ~290 nm and optical band gap of ~3.6 eV. These results suggest that geranium extract-derived polymers may potentially be used as antibacterial coatings for contact lenses.
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Affiliation(s)
- Ahmed Al-Jumaili
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
| | - Kateryna Bazaka
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
- School of Chemistry, Physics, Mechanical Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia.
| | - Mohan V Jacob
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
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Barrera-Ortega CC, Hoz-Rodríguez L, Arzate H, Fonseca-García A, Pérez-Alvarez J, Rodil SE. Comparison of the osteogenic, adipogenic, chondrogenic and cementogenic differentiation potential of periodontal ligament cells cultured on different biomaterials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:1075-1084. [PMID: 28482471 DOI: 10.1016/j.msec.2017.03.213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 02/28/2017] [Accepted: 03/23/2017] [Indexed: 11/18/2022]
Abstract
It has been shown that the cellular responses such as adhesion, proliferation and differentiation are influenced by the surface properties, such as the topography or the surface energy. However, less is known about the effect of the chemical composition and type of material on the differentiation potential. The objective of the present paper is to compare the differentiation potential of periodontal ligament cells (HPLC) into adipocytes, osteoblasts, chondroblasts and cementoblasts of three type of materials (metals, ceramics and polymers) without using any biological induction media, but keeping the average roughness values within a limited range of 2.0-3.0μm. The samples were produced as discs of 14×2mm; (n=30 for each type of material). Two samples of each type were chosen; stainless-steel 316L and commercially pure titanium for the metallic samples. The polymers were polymethyl methacrylate and high-density polyethylene, and finally for the ceramics; zirconia and dental porcelain were used. The surfaces properties of the samples (wettability, chemical composition and point of zero charge, PZC) were measured in order to correlate them with the biological response. To evaluate the potential of differentiation, human periodontal ligament cells obtained from extracted teeth were used since they are a promising source for periodontal tissue regeneration. Cell proliferation was initially tested to assure non-toxic effects using a viability colorimetric assay. Finally, the differentiation pattern was evaluated using real time reverse transcription quantitative polymerase chain reaction for 5, 10 and 15days without adding any induction medium. The results indicated that the relative expression of genes related to a particular phenotype were different for each surface. However, not clear correlation between the type of material or their surface properties (morphology, chemical composition, wettability or point of zero charge) and the expression pattern could be identified. For example, bone markers were mainly expressed on cpTi and PMMA; one metallic hydrophobic and one polymeric hydrophilic sample which have similar Ra values but presented different topographical features, although both samples have in common a PZC below 7.
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Affiliation(s)
- C C Barrera-Ortega
- Laboratorio de Biología Periodontal, División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, Circuito exterior s/n, Ciudad Universitaria, 04510 México CDMX, México; Programa de Maestría y Doctorado en Ciencias Médicas, Odontológicas y de la Salud, UNAM, Unidad de Posgrado, Zona Cultural de Ciudad Universitaria, México CDMX 04510, México
| | - L Hoz-Rodríguez
- Laboratorio de Biología Periodontal, División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, Circuito exterior s/n, Ciudad Universitaria, 04510 México CDMX, México
| | - H Arzate
- Laboratorio de Biología Periodontal, División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, Circuito exterior s/n, Ciudad Universitaria, 04510 México CDMX, México
| | - A Fonseca-García
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, 04510 México CDMX, México; Posgrado en Ciencia e Ingeniería de Materiales, UNAM, Unidad de Posgrado, Edificio C, Piso 1, Zona Cultural de CU, México CDMX 04510, México
| | - J Pérez-Alvarez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, 04510 México CDMX, México
| | - S E Rodil
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, 04510 México CDMX, México.
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Belibel R, Barbaud C, Mora L. Dynamic contact angle cycling homogenizes heterogeneous surfaces. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:1192-200. [PMID: 27612817 DOI: 10.1016/j.msec.2016.08.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/12/2016] [Accepted: 08/04/2016] [Indexed: 01/22/2023]
Abstract
In order to reduce restenosis, the necessity to develop the appropriate coating material of metallic stent is a challenge for biomedicine and scientific research over the past decade. Therefore, biodegradable copolymers of poly((R,S)-3,3 dimethylmalic acid) (PDMMLA) were prepared in order to develop a new coating exhibiting different custom groups in its side chain and being able to carry a drug. This material will be in direct contact with cells and blood. It consists of carboxylic acid and hexylic groups used for hydrophilic and hydrophobic character, respectively. The study of this material wettability and dynamic surface properties is of importance due to the influence of the chemistry and the potential motility of these chemical groups on cell adhesion and polymer kinetic hydrolysis. Cassie theory was used for the theoretical correction of contact angles of these chemical heterogeneous surfaces coatings. Dynamic Surface Analysis was used as practical homogenizer of chemical heterogeneous surfaces by cycling during many cycles in water. In this work, we confirmed that, unlike receding contact angle, advancing contact angle is influenced by the difference of only 10% of acidic groups (%A) in side-chain of polymers. It linearly decreases with increasing acidity percentage. Hysteresis (H) is also a sensitive parameter which is discussed in this paper. Finally, we conclude that cycling provides real information, thus avoiding theoretical Cassie correction. H(10)is the most sensible parameter to %A.
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Affiliation(s)
- R Belibel
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS), Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 Avenue Jean-Baptiste Clément, Villetaneuse F-93430, France
| | - C Barbaud
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS), Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 Avenue Jean-Baptiste Clément, Villetaneuse F-93430, France.
| | - L Mora
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS), Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 Avenue Jean-Baptiste Clément, Villetaneuse F-93430, France
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16
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Belibel R, Marinval N, Hlawaty H, Barbaud C. Poly(( R , S )-3,3-dimethylmalic acid) derivatives as a promising cardiovascular metallic stent coating: Biodegradation and biocompatibility of the hydrolysis products in human endothelial cells. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.06.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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