1
|
Song T, Cerruti M. Unraveling the role of carboxylate groups and elastin particle size in medial calcification. Int J Biol Macromol 2024; 274:133267. [PMID: 38906359 DOI: 10.1016/j.ijbiomac.2024.133267] [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: 04/10/2024] [Revised: 06/14/2024] [Accepted: 06/18/2024] [Indexed: 06/23/2024]
Abstract
While it is known that calcium phosphate (CaP) minerals deposit in elastin-rich medial layers of arteries during medial calcification, their nucleation and growth sites are still debated. Neutral carbonyl groups and carboxylate groups are possible candidates. Also, while it is known that elastin degradation leads to calcification, it is unclear whether this is due to formation of new carboxylate groups or elastin fragmentation. In this work, we disentangle effects of carboxylate groups and particle size on elastin calcification; in doing so, we shed light on CaP mineralization sites on elastin. We find carboxylate groups accelerate calcification only in early stages; they mainly function as Ca2+ ion chelation sites but not calcification sites. Their presence promotes formation (likely on Ca2+ ions adsorbed on nearby carbonyl groups) of CaP minerals with high calcium-to-phosphate ratio as intermediate phases. Larger elastin particles calcify slower but reach similar amounts of CaP minerals in late stages; they promote direct formation of hydroxyapatite and CaP minerals with low calcium-to-phosphate ratio as intermediate phases. This work provides new perspectives on how carboxylate groups and elastin particle size influence calcification; these parameters can be tuned to study the mechanism of medial calcification and design drugs to inhibit the process.
Collapse
Affiliation(s)
- Tao Song
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada.
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada.
| |
Collapse
|
2
|
Saad A, Penaloza Arias C, Wang M, ElKashty O, Brambilla D, Tamimi F, Cerruti M. Biomimetic Strategy to Enhance Epithelial Cell Viability and Spreading on PEEK Implants. ACS Biomater Sci Eng 2022; 8:5129-5144. [PMID: 36453830 DOI: 10.1021/acsbiomaterials.2c00764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Polyetheretherketone (PEEK) is a biocompatible material widely used in spinal and craniofacial implants, with potential use in percutaneous implants. However, its inertness prevents it from forming a tight seal with the surrounding soft tissue, which can lead to infections and implant failure. Conversely, the surface chemistry of percutaneous organs (i.e., teeth) helps establish a strong interaction with the epithelial cells of the contacting soft tissues, and hence a tight seal, preventing infection. The seal is created by adsorption of basement membrane (BM) proteins, secreted by epithelial cells, onto the percutaneous organ surfaces. Here, we aim to create a tight seal between PEEK and epithelial tissues by mimicking the surface chemistry of teeth. Our hypothesis is that collagen I, the most abundant tooth protein, enables integration between the epithelial tissue and teeth by promoting adsorption of BM proteins. To test this, we immobilized collagen I via EDC/NHS coupling on a carboxylated PEEK surface modified using diazonium chemistry. We used titanium alloy (Ti-6Al-4V) for comparison, as titanium is the most widely used percutaneous biomaterial. Both collagen-modified PEEK and titanium showed a larger adsorption of key BM proteins (laminin, nidogen, and fibronectin) compared to controls. Keratinocyte epithelial cell viability on collagen-modified PEEK was twice that of control PEEK and ∼1.5 times that of control titanium after 3 days of cell seeding. Both keratinocytes and fibroblasts spread more on collagen-modified PEEK and titanium compared to controls. This work introduces a versatile and biomimetic surface modification technique that may enhance PEEK-epithelial tissue sealing with the potential of extending PEEK applications to percutaneous implants, making it competitive with titanium.
Collapse
Affiliation(s)
- Ahmed Saad
- Department of Mining and Materials Engineering, McGill University, MontrealH3A 0C5, Québec, Canada
| | | | - Min Wang
- Faculty of Dentistry, McGill University, MontrealH3A 0C5, Québec, Canada
| | - Osama ElKashty
- Faculty of Dentistry, McGill University, MontrealH3A 0C5, Québec, Canada.,Department of Oral Pathology, Faculty of Dentistry, Mansoura University, Mansoura35516, Egypt
| | - Davide Brambilla
- Faculty of Pharmacy, Université de Montréal, MontréalH3T 1J4, Québec, Canada
| | - Faleh Tamimi
- Faculty of Dentistry, McGill University, MontrealH3A 0C5, Québec, Canada.,College of Dental Medicine, Qatar University, University Street, Doha2713, Qatar
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, MontrealH3A 0C5, Québec, Canada
| |
Collapse
|
3
|
α-Amino Phosphonic Acid as the Oxidized Ore Collector: Flexible Intra-Molecular Proton Transfer Providing an Improved Flotation Efficiency. MINERALS 2022. [DOI: 10.3390/min12080918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The efficient separation of ilmenite is a difficult problem in minerals flotation. For this issue, α-aminooctyl phosphinic acid (APA) was developed as a selective collector to separate ilmenite. The flotation test result showed that APA was more efficient for improving ilmenite recovery compared with octylphosphonic acid (OPA). Adsorption, ZETA and FTIR measurements proved that the chemical interaction between collector APA and the surface of ilmenite was stronger than OPA, while the result is completely opposite in the case of titanaugite. Moreover, XPS test and DFT calculations indicated that the collector APA was coordinated with the surface of ilmenite through P-O-Fe and P-O-Ti bonding. The amine group in the α-site of the phosphonyl group facilitated APA to be a stable zwitterion in the solution, which greatly enhanced the nucleophilicity of the phosphonic acid group. On the other hand, more appropriate coordination energy was another reason for the superior collecting selectivity of APA than OPA.
Collapse
|
4
|
Song X, Li X, Wang F, Wang L, Lv L, Xie Q, Zhang X, Shao X. Bioinspired Protein/Peptide Loaded 3D Printed PLGA Scaffold Promotes Bone Regeneration. Front Bioeng Biotechnol 2022; 10:832727. [PMID: 35875498 PMCID: PMC9300829 DOI: 10.3389/fbioe.2022.832727] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 06/17/2022] [Indexed: 11/22/2022] Open
Abstract
Background: This study was aimed to investigate the effect of three dimensional (3D)printed poly lactide-co-glycolide (PLGA) scaffolds combined with Gly-Phe-Hyp-Gly-Arg (GFOGER) and bone morphogenetic protein 9 (BMP-9) on the repair of large bone defects. Methods: 3D printing method was used to produce PLGA scaffolds, and the sample was viewed by both optical microscopy and SEM, XRD analysis, water absorption and compressive strength analysis, etc. The rabbits were divided into six groups randomly and bone defect models were constructed (6 mm in diameter and 9 mm in depth): control group (n = 2), sham group (n = 4), model group (n = 4) and model + scaffold group (n = 4 rabbits for each group, 0%,2% and 4%). The rabbits were sacrificed at the 4th and 12th weeks after surgery, and the samples were collected for quantitative analysis of new bone mineral density by micro-CT, histopathological observation, immunohistochemistry and Western blot to detect the protein expression of osteoblast-related genes. Results: This scaffold presented acceptable mechanical properties and slower degradation rates. After surface modification with GFOGER peptide and BMP-9, the scaffold demonstrated enhanced new bone mineral deposition and density over the course of a 12 week in vivo study. Histological analysis and WB confirmed that this scaffold up-regulated the expression of Runx7, OCN, COL-1 and SP7, contributing to the noted uniform trabeculae formation and new bone regeneration. Conclusions: The application of this strategy in the manufacture of composite scaffolds provided extensive guidance for the application of bone tissue engineering.
Collapse
Affiliation(s)
- Xiaoliang Song
- Department of Hand Surgery, Hebei Medical University, Shijiazhuang, China
| | - Xianxian Li
- Department of Hematological Oncology, Heji Hospital affiliated to Changzhi Medical College, Changzhi, China
| | - Fengyu Wang
- Department of Hand Surgery, The third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Li Wang
- Department of Hand Surgery, The third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Li Lv
- Department of Hand Surgery, The third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Qing Xie
- Department of Hand Surgery, The third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xu Zhang
- Department of Hand Surgery, The third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xinzhong Shao
- Department of Hand Surgery, The third Hospital of Hebei Medical University, Shijiazhuang, China
- *Correspondence: Xinzhong Shao,
| |
Collapse
|
5
|
Brasiliense V, Audibert JF, Wu T, Tessier G, Berto P, Miomandre F. Local Surface Chemistry Dynamically Monitored by Quantitative Phase Microscopy. SMALL METHODS 2022; 6:e2100737. [PMID: 35041288 DOI: 10.1002/smtd.202100737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/26/2021] [Indexed: 06/14/2023]
Abstract
Surface modification by photo grafting constitutes an interesting strategy to prepare functional surfaces. Precision applications, however, demand quantitative methods able to monitor and control the amount and distribution of surface modifications, which is hard to achieve, particularly in operando conditions. In this paper, a label-free, cost-effective, all-optical method based on wavefront sensing which is able to quantitatively track the evolution of grafted layers in real-time, is presented. By positioning a simple thin diffuser in the close vicinity of a camera, the thickness of grafted patterns is directly evaluated with sub-nanometric sensitivity and diffraction-limited lateral resolution. By performing an in-depth kinetic analysis of the local modification of an inert substrate (glass cover slips) through photografting of arydiazonium salts, different growth regimes are characterized and several parameters are estimated, such as the grafting efficiency, density and the apparent refractive index distribution of the resulting grafted layers. Both focused and widefield-grafting can be quantitatively monitored in real time, providing valuable guidelines to maximize functionalization efficiency. The association of a well-characterized versatile photografting reaction with the proposed flexible and sensitive monitoring strategy enables functional surfaces to be prepared, and puts surface micro- to submicro-structuration within the reach of most laboratories.
Collapse
Affiliation(s)
- Vitor Brasiliense
- PPSM, CNRS UMR 5831, ENS Paris-Saclay, 4 avenue des sciences, Gif-sur-Yvette, 91190, France
| | - Jean-Frédéric Audibert
- PPSM, CNRS UMR 5831, ENS Paris-Saclay, 4 avenue des sciences, Gif-sur-Yvette, 91190, France
| | - Tengfei Wu
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, F-75012, France
- Université de Paris, SPPIN-Saints-Pères Paris Institute for Neurosciences, 45 rue des Saints-Pères, Paris, 75006, France
| | - Gilles Tessier
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, F-75012, France
| | - Pascal Berto
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, F-75012, France
- Université de Paris, SPPIN-Saints-Pères Paris Institute for Neurosciences, 45 rue des Saints-Pères, Paris, 75006, France
| | - Fabien Miomandre
- PPSM, CNRS UMR 5831, ENS Paris-Saclay, 4 avenue des sciences, Gif-sur-Yvette, 91190, France
| |
Collapse
|
6
|
A facile strategy for fabricating robust superhydrophobic and superoleophilic metal mesh via diazonium chemistry. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127570] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Moussa H, El Hadad A, Sarrigiannidis S, Saad A, Wang M, Taqi D, Al-Hamed FS, Salmerón-Sánchez M, Cerruti M, Tamimi F. High toughness resorbable brushite-gypsum fiber-reinforced cements. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 127:112205. [PMID: 34225857 DOI: 10.1016/j.msec.2021.112205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/18/2021] [Accepted: 05/19/2021] [Indexed: 12/27/2022]
Abstract
The ideal bone substitute material should be mechanically strong, biocompatible with a resorption rate matching the rate of new bone formation. Brushite (dicalcium phosphate dihydrate) cement is a promising bone substitute material but with limited resorbability and mechanical properties. To improve the resorbability and mechanical performance of brushite cements, we incorporated gypsum (calcium sulfate dihydrate) and diazonium-treated polyglactin fibers which are well-known for their biocompatibility and bioresorbability. Here we show that by combining brushite and gypsum, we were able to fabricate biocompatible composite cements with high fracture toughness (0.47 MPa·m1/2) and a resorption rate that matched the rate of new bone formation. Adding functionalized polyglactin fibers to this composite cement further improved the fracture toughness up to 1.00 MPa·m1/2. XPS and SEM revealed that the improvement in fracture toughness is due to the strong interfacial bonding between the functionalized fibers and the cement matrix. This study shows that adding gypsum and functionalized polyglactin fibers to brushite cements results in composite biomaterials that combine high fracture toughness, resorbability, and biocompatibility, and have great potential for bone regeneration.
Collapse
Affiliation(s)
- Hanan Moussa
- Faculty of Dentistry, McGill University, Montreal, QC H3A 0C7, Canada; Faculty of Dentistry, Benghazi University, Benghazi 9504, Libya
| | - Amir El Hadad
- Faculty of Dentistry, McGill University, Montreal, QC H3A 0C7, Canada; Physics Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
| | | | - Ahmed Saad
- Department of Mining and Materials Engineering, McGill University, Montreal, QC H3A 0C5, Canada
| | - Min Wang
- Faculty of Dentistry, McGill University, Montreal, QC H3A 0C7, Canada; Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Doaa Taqi
- Faculty of Dentistry, McGill University, Montreal, QC H3A 0C7, Canada
| | | | | | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, QC H3A 0C5, Canada
| | - Faleh Tamimi
- Faculty of Dentistry, McGill University, Montreal, QC H3A 0C7, Canada; College of Dental Medicine, Qatar University, Doha 2713, Qatar.
| |
Collapse
|
8
|
Buck E, Lee S, Stone LS, Cerruti M. Protein Adsorption on Surfaces Functionalized with COOH Groups Promotes Anti-inflammatory Macrophage Responses. ACS APPLIED MATERIALS & INTERFACES 2021; 13:7021-7036. [PMID: 33539069 DOI: 10.1021/acsami.0c16509] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Implants can induce a foreign body reaction that leads to chronic inflammation and fibrosis in the surrounding tissue. Macrophages help detect the foreign material, play a role in the inflammatory response, and may promote fibrosis instead of the desired tissue regeneration around implants. Implant surface properties impact macrophage responses by changing the nature of the adsorbed protein layer, but conflicting studies highlight the complexity of this relationship. In this study, the effect of surface chemistry on macrophage behavior was investigated with poly(styrene) surfaces containing common functional groups at similar surface densities. The protein layer was characterized to identify the proteins that adsorbed on the surfaces from the medium and the proteins secreted onto the surfaces by adherent macrophages. Of the surface chemistries studied, carboxylic acid (COOH) groups promoted anti-inflammatory responses from unstimulated macrophages and did not exacerbate inflammation upon stimulation. These surfaces also enhanced the adsorption of proteins involved in integrin signaling and promoted the secretion of proteins related to angiogenesis, integrin signaling, and cytokine signaling, which have been previously associated with improved biomaterial integration. Therefore, this study suggests that surface modification with COOH groups may help improve the integration of implants in the body by enhancing anti-inflammatory macrophage responses through altered protein adsorption.
Collapse
Affiliation(s)
- Emily Buck
- Department of Mining and Materials Engineering, McGill University, Montreal, QC H3A 0C5, Canada
| | - Seunghwan Lee
- Faculty of Dentistry, McGill University, Montreal, QC H3A 1G1, Canada
- Alan Edwards Center for Research on Pain, McGill University, Montreal, QC H3A 0G1, Canada
| | - Laura S Stone
- Faculty of Dentistry, McGill University, Montreal, QC H3A 1G1, Canada
- Alan Edwards Center for Research on Pain, McGill University, Montreal, QC H3A 0G1, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, QC H3A 0C5, Canada
| |
Collapse
|
9
|
Jäger A, Donato RK, Perchacz M, Donato KZ, Starý Z, Konefał R, Serkis-Rodzeń M, Raucci MG, Fuentefria AM, Jäger E. Human metabolite-derived alkylsuccinate/dilinoleate copolymers: from synthesis to application. J Mater Chem B 2020; 8:9980-9996. [PMID: 33073835 DOI: 10.1039/d0tb02068k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The advances in polymer chemistry have allowed the preparation of biomedical polymers using human metabolites as monomers that can hold unique properties beyond the required biodegradability and biocompatibility. Herein, we demonstrate the use of endogenous human metabolites (succinic and dilinoleic acids) as monomeric building blocks to develop a new series of renewable resource-based biodegradable and biocompatible copolyesters. The novel copolyesters were characterized in detail employing several standard techniques, namely 1H NMR, 13C NMR, and FTIR spectroscopy and SEC, followed by an in-depth thermomechanical and surface characterization of their resulting thin films (DSC, TGA, DMTA, tensile tests, AFM, and contact angle measurements). Also, their anti-fungal biofilm properties were assessed via an anti-fungal biofilm assay and the biological properties were evaluated in vitro using relevant human-derived cells (human mesenchymal stem cells and normal human dermal fibroblasts). These novel highly biocompatible polymers are simple and cheap to prepare, and their synthesis can be easily scaled-up. They presented good mechanical, thermal and anti-fungal biofilm properties while also promoting cell attachment and proliferation, outperforming well-known polymers used for biomedical applications (e.g. PVC, PLGA, and PCL). Moreover, they induced morphological changes in the cells, which were dependent on the structural characteristics of the polymers. In addition, the obtained physicochemical and biological properties can be design-tuned by the synthesis of homo- and -copolymers through the selection of the diol moiety (ES, PS, or BS) and by the addition of a co-monomer, DLA. Consequently, the copolyesters presented herein have high application potential as renewable and cost-effective biopolymers for various biomedical applications.
Collapse
Affiliation(s)
- Alessandro Jäger
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Ricardo K Donato
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Magdalena Perchacz
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic. and Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Katarzyna Z Donato
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Zdeněk Starý
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Rafał Konefał
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Magdalena Serkis-Rodzeń
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Maria G Raucci
- Institute of Polymers, Composites and Biomaterials, National Research Council, Mostrad'Oltremare Pad.20, Viale Kennedy 54, 80125 Naples, Italy
| | - Alexandre M Fuentefria
- Laboratory of Applied Mycology, Department of Analysis, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Eliézer Jäger
- Institute of Macromolecular Chemistry v.v.i., Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| |
Collapse
|
10
|
Photocurable Methacrylate Derivatives of Polylactide: A Two-Stage Synthesis in Supercritical Carbon Dioxide and 3D Laser Structuring. Polymers (Basel) 2020; 12:polym12112525. [PMID: 33138125 PMCID: PMC7692848 DOI: 10.3390/polym12112525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/16/2020] [Accepted: 10/23/2020] [Indexed: 12/30/2022] Open
Abstract
A two-stage polylactide modification was performed in the supercritical carbon dioxide medium using the urethane formation reaction. The modification resulted in the synthesis of polymerizable methacrylate derivatives of polylactide for application in the spatial 3D structuring by laser stereolithography. The use of the supercritical carbon dioxide medium allowed us to obtain for the first time polymerizable oligomer-polymer systems in the form of dry powders convenient for further application in the preparation of polymer compositions for photocuring. The photocuring of the modified polymers was performed by laser stereolithography and two-photon crosslinking. Using nanoindentation, we found that Young’s modulus of the cured compositions corresponded to the standard characteristics of implants applied in regenerative medicine. As shown by thermogravimetric analysis, the degree of crosslinking and, hence, the local stiffness of scaffolds were determined by the amount of the crosslinking agent and the photocuring regime. No cytotoxicity was observed for the structures.
Collapse
|
11
|
Biomimetic vs. Direct Approach to Deposit Hydroxyapatite on the Surface of Low Melting Point Polymers for Tissue Engineering. NANOMATERIALS 2020; 10:nano10112162. [PMID: 33138141 PMCID: PMC7693928 DOI: 10.3390/nano10112162] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/24/2020] [Accepted: 10/27/2020] [Indexed: 01/27/2023]
Abstract
Polymers are widely used in many applications in the field of biomedical engineering. Among eclectic selections of polymers, those with low melting temperature (Tm < 200 °C), such as poly(methyl methacrylate), poly(lactic-co-glycolic acid), or polyethylene, are often used in bone, dental, maxillofacial, and corneal tissue engineering as substrates or scaffolds. These polymers, however, are bioinert, have a lack of reactive surface functional groups, and have poor wettability, affecting their ability to promote cellular functions and biointegration with the surrounding tissue. Improving the biointegration can be achieved by depositing hydroxyapatite (HAp) on the polymeric substrates. Conventional thermal spray and vapor phase coating, including the Food and Drug Administration (FDA)-approved plasma spray technique, is not suitable for application on the low Tm polymers due to the high processing temperature, reaching more than 1000 °C. Two non-thermal HAp coating approaches have been described in the literature, namely, the biomimetic deposition and direct nanoparticle immobilization techniques. In the current review, we elaborate on the unique features of each technique, followed by discussing the advantages and disadvantages of each technique to help readers decide on which method is more suitable for their intended applications. Finally, the future perspectives of the non-thermal HAp coating are given in the conclusion.
Collapse
|
12
|
Pituru SM, Greabu M, Totan A, Imre M, Pantea M, Spinu T, Tancu AMC, Popoviciu NO, Stanescu II, Ionescu E. A Review on the Biocompatibility of PMMA-Based Dental Materials for Interim Prosthetic Restorations with a Glimpse into their Modern Manufacturing Techniques. MATERIALS 2020; 13:ma13132894. [PMID: 32605174 PMCID: PMC7372356 DOI: 10.3390/ma13132894] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 06/21/2020] [Accepted: 06/25/2020] [Indexed: 12/20/2022]
Abstract
This paper's primary aim is to outline relevant aspects regarding the biocompatibility of PMMA (poly(methyl methacrylate))-based materials used for obtaining interim prosthetic restorations, such as the interaction with oral epithelial cells, fibroblasts or dental pulp cells, the salivary oxidative stress response, and monomer release. Additionally, the oral environment's biochemical response to modern interim dental materials containing PMMA (obtained via subtractive or additive methods) is highlighted in this review. The studies included in this paper confirmed that PMMA-based materials interact in a complex way with the oral environment, and therefore, different concerns about the possible adverse oral effects caused by these materials were analyzed. Adjacent to these aspects, the present work describes several advantages of PMMA-based dental materials. Moreover, the paper underlines that recent scientific studies ascertain that the modern techniques used for obtaining interim prosthetic materials, milled PMMA, and 3D (three-dimensional) printed resins, have distinctive advantages compared to the conventional ones. However, considering the limited number of studies focusing on the chemical composition and biocompatibility of these modern interim prosthetic materials, especially for the 3D printed ones, more aspects regarding their interaction with the oral environment need to be further investigated.
Collapse
Affiliation(s)
- Silviu Mirel Pituru
- Department of Professional Organization and Medical Legislation-Malpractice, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
| | - Maria Greabu
- Department of Biochemistry, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.G.); (A.T.)
| | - Alexandra Totan
- Department of Biochemistry, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.G.); (A.T.)
| | - Marina Imre
- Department of Complete Denture, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.I.); (A.M.C.T.)
| | - Mihaela Pantea
- Department of Fixed Prosthodontics and Occlusology, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Correspondence: (M.P.); (T.S.)
| | - Tudor Spinu
- Department of Fixed Prosthodontics and Occlusology, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Correspondence: (M.P.); (T.S.)
| | - Ana Maria Cristina Tancu
- Department of Complete Denture, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.I.); (A.M.C.T.)
| | - Nicoleta Olivia Popoviciu
- Department of Orthodontics and Dento-Facial Orthopedics, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (N.O.P.); (E.I.)
| | - Iulia-Ioana Stanescu
- Department of Physiology, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
| | - Ecaterina Ionescu
- Department of Orthodontics and Dento-Facial Orthopedics, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (N.O.P.); (E.I.)
| |
Collapse
|
13
|
Wang Y, Luo L, Wang Z, Tawiah B, Liu C, Xin JH, Fei B, Wong WY. Growing Poly(norepinephrine) Layer over Individual Nanoparticles To Boost Hybrid Perovskite Photocatalysts. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27578-27586. [PMID: 32456422 DOI: 10.1021/acsami.0c06081] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To address the poor stability of lead halide perovskite nanoparticles (NPs), monodisperse methylammonium lead bromide (MAPbBr3, M-PE) NPs were successfully encapsulated with a thin layer (10 nm) of poly(norepinephrine) (PNE) by in situ polymerization. The PNE layer endowed M-PE NPs with high structural stability against severe environmental conditions. Furthermore, the chemical interaction between M-PE and PNE facilitates the construction of the core@shell composite, as well as contributes to the enhanced light-harvesting capacity and improved photoelectronic conversion efficiency in photocatalytic activity. The encapsulated NP M-PE@PNE with a band gap of 2.04 eV degraded the organic pollutant of malachite green by 81% in less than 2 h under visible light, which was 4.5 times higher than pristine M-PE NPs. This work provides a practical approach to stabilize and boost the MAPbX3 photocatalyst and carries enormous potential in wide engineering applications.
Collapse
Affiliation(s)
- Yidi Wang
- Nanotechnology Centre, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Liangfeng Luo
- Nanotechnology Centre, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Ziqi Wang
- Nanotechnology Centre, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Benjamin Tawiah
- Nanotechnology Centre, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Chang Liu
- Nanotechnology Centre, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - John H Xin
- Nanotechnology Centre, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Bin Fei
- Nanotechnology Centre, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| |
Collapse
|
14
|
Yu W, Zhang H, A L, Yang S, Zhang J, Wang H, Zhou Z, Zhou Y, Zhao J, Jiang Z. Enhanced bioactivity and osteogenic property of carbon fiber reinforced polyetheretherketone composites modified with amino groups. Colloids Surf B Biointerfaces 2020; 193:111098. [PMID: 32498001 DOI: 10.1016/j.colsurfb.2020.111098] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 04/20/2020] [Accepted: 04/27/2020] [Indexed: 11/19/2022]
Abstract
Polyetheretherketone (PEEK) is considered as a potential dental and orthopedic implant material owing to its favorable thermal and chemical stability, biocompatibility and mechanical properties. However, the inherent bio-inert and inferior osseointegration of PEEK have hampered its clinical application. In addition, carbon fiber is widely used as a filler to reinforce polymers for sturdy composites owing to its high strength, modulus, etc. In the study, carbon fiber reinforced PEEK (CPEEK) composites were fabricated and modified with amino groups by plasma-enhanced chemical vapor deposition surface modification technique. The surface characterization of composites was evaluated by FE-SEM, EDS, AFM, Water contact angle, XPS and FTIR, which revealed that amino groups were successfully incorporated on the modified CPEEK surface and significantly increased the hydrophilicity. In vitro study, cell adhesion, proliferation, ALP activity, ECM mineralization, real-time PCR analysis, and ELISA analysis showed the adhesion, proliferation and osteogenic differentiation of MG-63 cells on the amino group-modified CPEEK surface were higher than the CPEEK, equal to or better than pure titanium. Hence, the results indicated that the amino group-modified CPEEK possessed enhanced bioactivity and osteogenic property, which may be a potential candidate material for dental implants.
Collapse
Affiliation(s)
- Wanqi Yu
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun, 130021, China
| | - Haibo Zhang
- Engineering Research Center of High Performance Plastic, Ministry of Education, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Lan A
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Shihui Yang
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Jingjie Zhang
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Hanchi Wang
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Zhe Zhou
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Yanmin Zhou
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Jinghui Zhao
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun, 130021, China.
| | - Zhenhua Jiang
- Engineering Research Center of High Performance Plastic, Ministry of Education, College of Chemistry, Jilin University, Changchun, 130012, China.
| |
Collapse
|
15
|
Durán IR, Vanslambrouck S, Chevallier P, Hoesli CA, Laroche G. Atmospheric pressure cold plasma versus wet-chemical surface treatments for carboxyl functionalization of polylactic acid: A first step toward covalent immobilization of bioactive molecules. Colloids Surf B Biointerfaces 2020; 189:110847. [PMID: 32086024 DOI: 10.1016/j.colsurfb.2020.110847] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 01/07/2020] [Accepted: 02/04/2020] [Indexed: 12/12/2022]
Abstract
The use of polylactic acid (PLA) has attracted growing interest, particularly in recent years, for biomedical applications because of its mechanical properties, biocompatibility, and biodegradability. Despite this, features such as surface hydrophobicity and the absence of suitable functional groups for covalent immobilization of bioactive molecules, make it challenging to endow PLA-based medical devices with additional features and thus broaden their range of applicability. In the present study, we demonstrate the suitability of atmospheric pressure dielectric barrier discharges operating in the Townsend regime as a promising alternative to other surface treatments, such as diazonium and alkali hydrolytic treatments, for carboxyl functionalization of PLA. Chemical changes in PLA surfaces are evaluated by contact angle measurements and by X-ray photoelectron spectroscopy while physical changes are investigated by scanning electron microscopy and atomic force microscopy. The amount of carboxyl groups generated on PLA surfaces is assessed by toluidine blue O assay and substantiated by grafting, through carboxyl groups, a fluorescent probe containing amino functionalities. All of the surface treatments have proven to be very effective in generating carboxylic groups on the PLA surface. Nevertheless, plasma treatment is shown to not degrade the PLA surface, in sharp contrast with diazonium and alkali hydrolytic treatments.
Collapse
Affiliation(s)
- Iván Rodríguez Durán
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux, Université Laval, 1065, avenue de la Médecine, Québec City, G1V 0A6, Canada; Axe Médecine Régénératrice, Centre de recherche du CHU de Québec, Hôpital St. François d'Assise, 10, rue de l'Espinay, Québec city, G1L 3L5, Canada
| | - Stéphanie Vanslambrouck
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux, Université Laval, 1065, avenue de la Médecine, Québec City, G1V 0A6, Canada; Axe Médecine Régénératrice, Centre de recherche du CHU de Québec, Hôpital St. François d'Assise, 10, rue de l'Espinay, Québec city, G1L 3L5, Canada
| | - Pascale Chevallier
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux, Université Laval, 1065, avenue de la Médecine, Québec City, G1V 0A6, Canada; Axe Médecine Régénératrice, Centre de recherche du CHU de Québec, Hôpital St. François d'Assise, 10, rue de l'Espinay, Québec city, G1L 3L5, Canada
| | - Corinne A Hoesli
- Stem Cell Bioprocessing Laboratory, Department of Chemical Engineering, McGill University, Wong Building, 3610 University Street, Montreal, H3A 0C5, Canada
| | - Gaétan Laroche
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux, Université Laval, 1065, avenue de la Médecine, Québec City, G1V 0A6, Canada; Axe Médecine Régénératrice, Centre de recherche du CHU de Québec, Hôpital St. François d'Assise, 10, rue de l'Espinay, Québec city, G1L 3L5, Canada.
| |
Collapse
|
16
|
Bochicchio B, Barbaro K, De Bonis A, Rau JV, Pepe A. Electrospun poly(d,l-lactide)/gelatin/glass-ceramics tricomponent nanofibrous scaffold for bone tissue engineering. J Biomed Mater Res A 2020; 108:1064-1076. [PMID: 31967393 DOI: 10.1002/jbm.a.36882] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 12/15/2022]
Abstract
Electrospun scaffolds are emerging as extracellular matrix (ECM)mimicking structures for tissue engineering thanks to their nanofibrous architecture. For the development of suitable electrospun scaffolds for bone tissue engineering, the addition of inorganic components has been implemented with the aim to confer important bioactivity like osteoinduction, osteointegration, and cell adhesion to the scaffolds. In this context, we propose a tricomponent electrospun scaffold composed of poly(d,l-lactide), gelatin and RKKP glass-ceramics. The bioactive RKKP glass-ceramic system has attracted interest, due to the presence of ions such as La3+ and Ta5+ , which turned out to be valuable as growth supporting agents for bones. In this work, RKKP glass-ceramics were embedded inside the microfibers of electrospun scaffolds and the structural and biological properties were investigated. Our results showed that the glass-ceramic microparticles were uniformly distributed in the fibrous structure of the scaffold. Furthermore, the glass-ceramics promoted biomineralization of the scaffolds and improved cell viability and osteogenic differentiation. The mineralized layer formed on RKKP-containing scaffolds after incubation in simulated body fluid medium has been shown to be hydroxyapatite by Raman spectroscopy and X-ray diffraction. The results on differentiation studies of canine adipose-derived mesenchymal stem cells grown on the electrospun scaffolds suggest that on varying the content of RKKP in the scaffold, it is possible to drive the differentiation toward chondrogenic or osteogenic commitment. The presence of ions, like La3+ and Ta5+ , in the RKKP embedded polymeric composite scaffolds could play a role in supporting cell growth and promoting differentiation.
Collapse
Affiliation(s)
- Brigida Bochicchio
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Katia Barbaro
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana "M. Aleandri", Rome, Italy
| | - Angela De Bonis
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Rome, Italy
| | - Antonietta Pepe
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| |
Collapse
|
17
|
Buck E, Li H, Cerruti M. Surface Modification Strategies to Improve the Osseointegration of Poly(etheretherketone) and Its Composites. Macromol Biosci 2019; 20:e1900271. [DOI: 10.1002/mabi.201900271] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/18/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Emily Buck
- Department of Mining and Materials EngineeringMcGill University 3610 University Street Montreal QC H3A 0C5 Canada
| | - Hao Li
- Department of Mining and Materials EngineeringMcGill University 3610 University Street Montreal QC H3A 0C5 Canada
| | - Marta Cerruti
- Department of Mining and Materials EngineeringMcGill University 3610 University Street Montreal QC H3A 0C5 Canada
| |
Collapse
|
18
|
Gourgas O, Cole GB, Muiznieks LD, Sharpe S, Cerruti M. Effect of the Ionic Concentration of Simulated Body Fluid on the Minerals Formed on Cross-Linked Elastin-Like Polypeptide Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15364-15375. [PMID: 31729882 DOI: 10.1021/acs.langmuir.9b02542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Deposition of calcium phosphate minerals on the elastin-rich medial layers of arteries can cause severe cardiovascular complications. There are no available treatments for medial calcification, and the mechanism of mineral formation on elastin layers is still unknown. We recently developed an in vitro model of medial calcification using cross-linked elastin-like polypeptide (ELP) membranes immersed in simulated body fluid (SBF). While mineral phase evolution matched that observed in a mouse model of medial calcification, the long incubation required was a practical limitation of this model. Using higher SBF ion concentrations could be a solution to speed up mineral deposition, but its effect on the mineralization process is still not well understood. Here we analyze mineral formation and phase transformation on ELP membranes immersed in high concentration SBF. We show that while mineral deposition is significantly accelerated in these conditions, the chemistry and morphology of the minerals deposited on the ELP membranes and the overall mineralization process are strongly affected. Overall, this work suggests that while the use of low concentration SBF in this in vitro model is more appropriate to study medial calcification associated with the loss of calcification inhibitors, higher SBF ion concentration may be more relevant to study medial calcification in patients with life-threatening diseases such as chronic kidney disease.
Collapse
Affiliation(s)
- Ophélie Gourgas
- Department of Mining and Materials Engineering , McGill University , Montreal , Quebec H3A 0C5 , Canada
| | - Gregory B Cole
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
- Department of Biochemistry , University of Toronto , Toronto , Ontario M5S 1A8 , Canada
| | - Lisa D Muiznieks
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
| | - Simon Sharpe
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
- Department of Biochemistry , University of Toronto , Toronto , Ontario M5S 1A8 , Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering , McGill University , Montreal , Quebec H3A 0C5 , Canada
| |
Collapse
|
19
|
Siqueira IAWB, Amaral SS, de Moura NK, Machado JPB, Backes EH, Passador FR, Camargo SEA, de Vasconcellos LMR, Trichês ES. In vitro bioactivity and biological assays of porous membranes of the poly(lactic acid) containing calcium silicate fibers. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-03021-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
20
|
Gourgas O, Muiznieks LD, Bello DG, Nanci A, Sharpe S, Cerruti M. Cross-Linked Elastin-like Polypeptide Membranes as a Model for Medial Arterial Calcification. Biomacromolecules 2019; 20:2625-2636. [DOI: 10.1021/acs.biomac.9b00417] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Ophélie Gourgas
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Lisa D. Muiznieks
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
| | - Dainelys Guadarrama Bello
- Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Antonio Nanci
- Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Simon Sharpe
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| |
Collapse
|
21
|
Zhong L, Qu Y, Shi K, Chu B, Lei M, Huang K, Gu Y, Qian Z. Biomineralized polymer matrix composites for bone tissue repair: a review. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9324-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
22
|
Mezour MA, Oweis Y, El-Hadad AA, Algizani S, Tamimi F, Cerruti M. Surface modification of CoCr alloys by electrochemical reduction of diazonium salts. RSC Adv 2018; 8:23191-23198. [PMID: 35540168 PMCID: PMC9081548 DOI: 10.1039/c8ra02634c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 04/05/2018] [Indexed: 12/31/2022] Open
Abstract
Tailoring the surface chemistry of CoCr alloys is of tremendous interest in many biomedical applications. In this work, we show that CoCr can be modified by diazonium electrografting provided the surface is not homogeneously covered with an oxide layer. Cyclic voltammetry (CV) and X-ray photoelectron spectroscopy (XPS) show the electrografting of a poly(aminophenylene) (PAP) layer on CoCr when treated at a reductive potential (CoCr-0.5 V), whereas no PAP film was formed on CoCrOCP and CoCr1 V, treated at open circuit and anodic potentials respectively. Based on XPS results, we attributed the electrografting to the formation of carbide bonds between PAP and the inhomogeneous thin oxide layer of CoCr-0.5 V. We then show an example of application of PAP coatings on CoCr and prove that the presence of a PAP coating on CoCr-0.5 V results in a 5-fold increase of the adherence of poly methyl methacrylate (PMMA) to PAP-coated CoCr compared to uncoated samples; this is of prime significance to improving the long-term stability of dental prostheses. These findings support the importance of reducing the oxide layer for effective functionalization of metal oxides with aryl diazonium salts and suggest a promising surface modification approach for biomedical applications.
Collapse
Affiliation(s)
- M A Mezour
- Department of Mining and Materials Engineering, McGill University Montreal Quebec H3A 2B2 Canada
- Faculty of Dentistry, McGill University, 3640, Strathcona Anatomy and Dentistry Building, Rue University Montreal Quebec H3A 0C7 Canada
| | - Y Oweis
- Faculty of Dentistry, McGill University, 3640, Strathcona Anatomy and Dentistry Building, Rue University Montreal Quebec H3A 0C7 Canada
| | - A A El-Hadad
- Faculty of Dentistry, McGill University, 3640, Strathcona Anatomy and Dentistry Building, Rue University Montreal Quebec H3A 0C7 Canada
- Physics Department, Faculty of Science, Al-Azhar University Nasr City Cairo Egypt
| | - S Algizani
- Faculty of Dentistry, McGill University, 3640, Strathcona Anatomy and Dentistry Building, Rue University Montreal Quebec H3A 0C7 Canada
| | - F Tamimi
- Faculty of Dentistry, McGill University, 3640, Strathcona Anatomy and Dentistry Building, Rue University Montreal Quebec H3A 0C7 Canada
| | - M Cerruti
- Department of Mining and Materials Engineering, McGill University Montreal Quebec H3A 2B2 Canada
| |
Collapse
|
23
|
Metal-composite adhesion based on diazonium chemistry. Dent Mater 2017; 33:e393-e404. [DOI: 10.1016/j.dental.2017.07.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 06/11/2017] [Accepted: 07/13/2017] [Indexed: 11/21/2022]
|
24
|
Liu Y, Zhou G, Liu Z, Guo M, Jiang X, Taskin MB, Zhang Z, Liu J, Tang J, Bai R, Besenbacher F, Chen M, Chen C. Mussel Inspired Polynorepinephrine Functionalized Electrospun Polycaprolactone Microfibers for Muscle Regeneration. Sci Rep 2017; 7:8197. [PMID: 28811636 PMCID: PMC5557809 DOI: 10.1038/s41598-017-08572-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/13/2017] [Indexed: 01/30/2023] Open
Abstract
Electrospun scaffolds with excellent mechanical properties, high specific surface area and a commendable porous network are widely used in tissue engineering. Improving the hydrophilicity and cell adhesion of hydrophobic substrates is the key point to enhance the effectiveness of electrospun scaffolds. In this study, polycaprolactone (PCL) fibrous membranes with appropriate diameter were selected and coated by mussel-inspired poly norepinephrine (pNE). And norepinephrine is a catecholamine functioning as a hormone and neurotransmitter in the human brain. The membrane with smaller diameter fibers, a relative larger specific surface area and the suitable pNE functionalization provided more suitable microenvironment for cell adhesion and proliferation both in vitro and in vivo. The regenerated muscle layer can be integrated well with fibrous membranes and surrounding tissues at the impaired site and thus the mechanical strength reached the value of native tissue. The underlying molecular mechanism is mediated via inhibiting myostatin expression by PI3K/AKT/mTOR hypertrophy pathway. The properly functionalized fibrous membranes hold the potential for repairing muscle injuries. Our current work also provides an insight for rational design and development of better tissue engineering materials for skeletal muscle regeneration.
Collapse
Affiliation(s)
- Ying Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Guoqiang Zhou
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Zhu Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China.,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Mengyu Guo
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Xiumei Jiang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Mehmet Berat Taskin
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000, Aarhus C, Denmark
| | - Zhongyang Zhang
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000, Aarhus C, Denmark
| | - Jing Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Jinglong Tang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Ru Bai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Flemming Besenbacher
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000, Aarhus C, Denmark
| | - Menglin Chen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000, Aarhus C, Denmark.
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China.
| |
Collapse
|
25
|
Abdallah MN, Tran SD, Abughanam G, Laurenti M, Zuanazzi D, Mezour MA, Xiao Y, Cerruti M, Siqueira WL, Tamimi F. Biomaterial surface proteomic signature determines interaction with epithelial cells. Acta Biomater 2017; 54:150-163. [PMID: 28259836 DOI: 10.1016/j.actbio.2017.02.044] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 02/21/2017] [Accepted: 02/27/2017] [Indexed: 12/31/2022]
Abstract
Cells interact with biomaterials indirectly through extracellular matrix (ECM) proteins adsorbed onto their surface. Accordingly, it could be hypothesized that the surface proteomic signature of a biomaterial might determine its interaction with cells. Here, we present a surface proteomic approach to test this hypothesis in the specific case of biomaterial-epithelial cell interactions. In particular, we determined the surface proteomic signature of different biomaterials exposed to the ECM of epithelial cells (basal lamina). We revealed that the biomaterial surface chemistry determines the surface proteomic profile, and subsequently the interaction with epithelial cells. In addition, we found that biomaterials with surface chemistries closer to that of percutaneous tissues, such as aminated PMMA and aminated PDLLA, promoted higher selective adsorption of key basal lamina proteins (laminins, nidogen-1) and subsequently improved their interactions with epithelial cells. These findings suggest that mimicking the surface chemistry of natural percutaneous tissues can improve biomaterial-epithelial integration, and thus provide a rationale for the design of improved biomaterial surfaces for skin regeneration and percutaneous medical devices. STATEMENT OF SIGNIFICANCE Failure of most biomaterials originates from the inability to predict and control the influence of their surface properties on biological phenomena, particularly protein adsorption, and cellular behaviour, which subsequently results in unfavourable host response. Here, we introduce a surface-proteomic screening approach using a label-free mass spectrometry technique to decipher the adsorption profile of extracellular matrix (ECM) proteins on different biomaterials, and correlate it with cellular behaviour. We demonstrated that the way a biomaterial selectively interacts with specific ECM proteins of a given tissue seems to determine the interactions between the cells of that tissue and biomaterials. Accordingly, this approach can potentially revolutionize the screening methods for investigating the protein-cell-biomaterial interactions and pave the way for deeper understanding of these interactions.
Collapse
|
26
|
Abdallah MN, Abdollahi S, Laurenti M, Fang D, Tran SD, Cerruti M, Tamimi F. Scaffolds for epithelial tissue engineering customized in elastomeric molds. J Biomed Mater Res B Appl Biomater 2017; 106:880-890. [PMID: 28419685 DOI: 10.1002/jbm.b.33897] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 02/28/2017] [Accepted: 03/28/2017] [Indexed: 02/06/2023]
Abstract
Restoration of soft tissue defects remains a challenge for surgical reconstruction. In this study, we introduce a new approach to fabricate poly(d,l-lactic acid) (PDLLA) scaffolds with anatomical shapes customized to regenerate three-dimensional soft tissue defects. Highly concentrated polymer/salt mixtures were molded in flexible polyether molds. Microcomputed tomography showed that with this approach it was possible to produce scaffolds with clinically acceptable volume ratio maintenance (>90%). Moreover, this technique allowed us to customize the average pore size and pore interconnectivity of the scaffolds by using variations of salt particle size. In addition, this study demonstrated that with the increasing porosity and/or the decreasing of the average pore size of the PDLLA scaffolds, their mechanical properties decrease and they degrade more slowly. Cell culture results showed that PDLLA scaffolds with an average pore size of 100 µm enhance the viability and proliferation rates of human gingival epithelial cells up to 21 days. The simple method proposed in this article can be extended to fabricate porous scaffolds with customizable anatomical shapes and optimal pore structure for epithelial tissue engineering. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 880-890, 2018.
Collapse
Affiliation(s)
| | - Sara Abdollahi
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec, Canada
| | - Marco Laurenti
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - Dongdong Fang
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada.,Craniofacial Stem Cells and Tissue Engineering Laboratory, McGill University, Montreal, Quebec, Canada
| | - Simon D Tran
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada.,Craniofacial Stem Cells and Tissue Engineering Laboratory, McGill University, Montreal, Quebec, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec, Canada
| | - Faleh Tamimi
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| |
Collapse
|
27
|
Stankevich KS, Danilenko NV, Gadirov RM, Goreninskii SI, Tverdokhlebov SI, Filimonov VD. A new approach for the immobilization of poly(acrylic) acid as a chemically reactive cross-linker on the surface of poly(lactic) acid-based biomaterials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:862-869. [DOI: 10.1016/j.msec.2016.10.078] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 10/17/2016] [Accepted: 10/30/2016] [Indexed: 11/29/2022]
|
28
|
Mahjoubi H, Buck E, Manimunda P, Farivar R, Chromik R, Murshed M, Cerruti M. Surface phosphonation enhances hydroxyapatite coating adhesion on polyetheretherketone and its osseointegration potential. Acta Biomater 2017; 47:149-158. [PMID: 27717913 DOI: 10.1016/j.actbio.2016.10.004] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 09/28/2016] [Accepted: 10/03/2016] [Indexed: 12/19/2022]
Abstract
Polyetheretherketone (PEEK) has excellent mechanical properties, biocompatibility, chemical resistance and radiolucency, making it suitable for use as orthopedic implants. However, its surface is hydrophobic and bioinert, and surface modification is required to improve its bioactivity. In this work, we showed that grafting phosphonate groups via diazonium chemistry enhances the bioactivity of PEEK. Decreased contact angle indicated reduced hydrophobicity as a result of the treatment and X-ray photoelectron spectroscopy (XPS) confirmed the attachment of phosphonate groups to the surface. The surface treatment not only accelerated hydroxyapatite (HA) deposition after immersion in simulated body fluid but also significantly increased the adhesion strength of HA particles on PEEK. MC3T3-E1 cell viability, metabolic activity and deposition of calcium-containing minerals were also enhanced by the phosphonation. After three months of implantation in a critical size calvarial defect model, a fibrous capsule surrounded untreated PEEK while no fibrous capsule was observed around the treated PEEK. Instead, mineral deposition was observed in the region between the treated PEEK implant and underlying bone. This work introduces a simple method to improve the potential of PEEK-based orthopedic implants. STATEMENT OF SIGNIFICANCE We have introduced phosphonate groups on the surface of PEEK substrates using diazonium chemistry. Our results show that the treatment not only increased the adhesion strength of hydroxyapatite particles deposited on PEEK in vitro by approximately 40% compared to unmodified PEEK, but also improved the metabolic activity and mineralization of MC3T3-E1 cells. When implanted in cranial defects in rats, the phosphonate coating enhanced the osseointegration of PEEK by successfully preventing the formation of a fibrous capsule and favoring mineral deposition between the implant and the surrounding bone. This work introduces a simple method to improve the potential of PEEK-based orthopedic implants, particularly those with complex shapes.
Collapse
|
29
|
Adsorption of α-hydroxyoctyl phosphonic acid to ilmenite/water interface and its application in flotation. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.11.015] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
30
|
Wang J, Wu D, Zhang Z, Li J, Shen Y, Wang Z, Li Y, Zhang ZY, Sun J. Biomimetically Ornamented Rapid Prototyping Fabrication of an Apatite-Collagen-Polycaprolactone Composite Construct with Nano-Micro-Macro Hierarchical Structure for Large Bone Defect Treatment. ACS APPLIED MATERIALS & INTERFACES 2015; 7:26244-56. [PMID: 26551161 DOI: 10.1021/acsami.5b08534] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Biomaterial-based bone graft substitute with favorable mechanical and biological properties could be used as an alternative to autograft for large defect treatment. Here, an apatite-collagen-polycaprolactone (Ap-Col-PCL) composite construct was developed with unique nano-micro-macro hierarchical architectures by combining rapid prototyping (RP) fabrication technology and a 3D functionalization strategy. Macroporous PCL framework was fabricated using RP technology, then functionalized by collagen incorporation and biomimetic deposition. Ap-Col-PCL composite construct was characterized with hierarchical architectures of a nanoscale (∼100 nm thickness and ∼1 μm length) platelike apatite coating on the microporous (126 ± 18 μm) collagen networks, which homogeneously filled the macroporous (∼1000 μm) PCL frameworks and possessed a favorable hydrophilic property and compressive modulus (68.75 ± 3.39 MPa) similar to that of cancellous bone. Moreover, in vitro cell culture assay and in vivo critical-sized bone defect implantation demonstrated that the Ap-Col-PCL construct could not only significantly increase the cell adhesion capability (2.0-fold) and promote faster cell proliferation but also successfully bridge the segmental long bone defect within 12 weeks with much more bone regeneration (5.2-fold), better osteointegration (7.2-fold), and a faster new bone deposition rate (2.9-fold). Our study demonstrated that biomimetically ornamented Ap-Col-PCL constructs exhibit a favorable mechanical property, more bone tissue ingrowth, and better osteointegration capability as an effective bone graft substitute for critical-sized bone defect treatment; meanwhile, it can also harness the advantages of RP technology, in particular, facilitating the customization of the shape and size of implants according to medical images during clinical application.
Collapse
Affiliation(s)
| | - Dingyu Wu
- National Tissue Engineering Center of China , 68 Jiang Chuan East Road, Shanghai 200241, PR China
| | - Zhanzhao Zhang
- National Tissue Engineering Center of China , 68 Jiang Chuan East Road, Shanghai 200241, PR China
| | | | | | - Zhenxing Wang
- National Tissue Engineering Center of China , 68 Jiang Chuan East Road, Shanghai 200241, PR China
| | - Yu Li
- National Tissue Engineering Center of China , 68 Jiang Chuan East Road, Shanghai 200241, PR China
| | - Zhi-Yong Zhang
- National Tissue Engineering Center of China , 68 Jiang Chuan East Road, Shanghai 200241, PR China
| | | |
Collapse
|
31
|
Kepa K, Coleman R, Grøndahl L. In vitro mineralization of functional polymers. BIOSURFACE AND BIOTRIBOLOGY 2015. [DOI: 10.1016/j.bsbt.2015.09.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
|
32
|
Rambhia KJ, Ma PX. Controlled drug release for tissue engineering. J Control Release 2015; 219:119-128. [PMID: 26325405 DOI: 10.1016/j.jconrel.2015.08.049] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 08/23/2015] [Accepted: 08/25/2015] [Indexed: 11/19/2022]
Abstract
Tissue engineering is often referred to as a three-pronged discipline, with each prong corresponding to 1) a 3D material matrix (scaffold), 2) drugs that act on molecular signaling, and 3) regenerative living cells. Herein we focus on reviewing advances in controlled release of drugs from tissue engineering platforms. This review addresses advances in hydrogels and porous scaffolds that are synthesized from natural materials and synthetic polymers for the purposes of controlled release in tissue engineering. We pay special attention to efforts to reduce the burst release effect and to provide sustained and long-term release. Finally, novel approaches to controlled release are described, including devices that allow for pulsatile and sequential delivery. In addition to recent advances, limitations of current approaches and areas of further research are discussed.
Collapse
Affiliation(s)
- Kunal J Rambhia
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Peter X Ma
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI 48109, USA; Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI 48109, USA; Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
| |
Collapse
|
33
|
Siqueira IAWB, Corat MAF, Cavalcanti BDN, Ribeiro Neto WA, Martin AA, Bretas RES, Marciano FR, Lobo AO. In Vitro and in Vivo Studies of Novel Poly(D,L-lactic acid), Superhydrophilic Carbon Nanotubes, and Nanohydroxyapatite Scaffolds for Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2015; 7:9385-9398. [PMID: 25899398 DOI: 10.1021/acsami.5b01066] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Poly(D,L-lactide acid, PDLLA) has been researched for scaffolds in bone regeneration. However, its hydrophobocity and smooth surface impedes its interaction with biological fluid and cell adhesion. To alter the surface characteristics, different surface modification techniques have been developed to facilitate biological application. The present study compared two different routes to produce PDLLA/superhydrophilic vertically aligned carbon nanotubes:nanohydroxyapatite (PDLLA/VACNT-O:nHAp) scaffolds. For this, we used electrodeposition and immersion in simulated body fluid (SBF). Characterization by goniometry, scanning electron microscopy, X-ray diffraction, and infrared spectroscopy confirmed the polymer modifications, the in vitro bioactivity, and biomineralization. Differential scanning calorimetry and thermal gravimetric analyses showed that the inclusion of VACNT-O:nHA probably acts as a nucleating agent increasing the crystallization rate in the neat PDLLA without structural alteration. Our results showed the formation of a dense nHAp layer on all scaffolds after 14 days of immersion in SBF solution; the most intense carbonated nHAp peaks observed in the PDLLA/VACNT-O:nHAp samples suggest higher calcium precipitation compared to the PDLLA control. Both cell viability and alkaline phosphatase assays showed favorable results, because no cytotoxic effects were present and all produced scaffolds were able to induce detectable mineralization. Bone defects were used to evaluate the bone regeneration; the confocal Raman and histological results confirmed high potential for bone applications. In vivo study showed that the PDLLA/VACNT-O:nHAp scaffolds mimicked the immature bone and induced bone remodeling. These findings indicate surface improvement and the applicability of this new nanobiomaterial for bone regenerative medicine.
Collapse
Affiliation(s)
| | - Marcus Alexandre F Corat
- ‡Multidisciplinary Center for Biological Investigation on Laboratory Animal Science (CEMIB), State University of Campinas, Campinas SP 13083-970, Sao Paulo, Brazil
| | - Bruno das Neves Cavalcanti
- §Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Wilson Alves Ribeiro Neto
- ∥Department of Materials Engineering, Federal University of Sao Carlos, Sao Carlos SP 13565-905, Sao Paulo, Brazil
| | | | - Rosario Elida Suman Bretas
- ∥Department of Materials Engineering, Federal University of Sao Carlos, Sao Carlos SP 13565-905, Sao Paulo, Brazil
| | | | | |
Collapse
|
34
|
Mikulska A, Filipowska J, Osyczka AM, Nowakowska M, Szczubiałka K. Osteoinductive activity of insulin-functionalized cell culture surfaces obtained using diazonium chemistry. Front Chem 2015; 2:117. [PMID: 25629028 PMCID: PMC4292785 DOI: 10.3389/fchem.2014.00117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 12/24/2014] [Indexed: 11/23/2022] Open
Abstract
Polymeric surfaces suitable for cell culture (DR/Pec) were constructed from diazoresin (DR) and pectin (Pec) in a form of ultrathin films using the layer-by-layer (LbL) technique. The surfaces were functionalized with insulin using diazonium chemistry. Such functionalized surfaces were used to culture human mesenchymal stem cells (hMSCs) to assess their suitability for bone tissue engineering and regeneration. The activity of insulin immobilized on the surfaces (DR/Pec/Ins) was compared to that of insulin dissolved in the culture medium. Human MSC grown on insulin-immobilized DR/Pec surfaces displayed increased proliferation and higher osteogenic activity. The latter was determined by means of alkaline phosphatase (ALP) activity, which increases at early stages of osteoblasts differentiation. Insulin dissolved in the culture medium did not stimulate cell proliferation and its osteogenic activity was significantly lower. Addition of recombinant human bone morphogenetic protein 2 (rhBMP-2) to the culture medium further increased ALP activity in hMSCs indicating additive osteogenic action of immobilized insulin and rhBMP-2.
Collapse
Affiliation(s)
- Anna Mikulska
- Nanotechnology of Polymers and Biomaterials, Faculty of Chemistry, Jagiellonian University Kraków, Poland
| | - Joanna Filipowska
- Department of Biology and Cell Imaging, Faculty of Biology and Earth Sciences, Jagiellonian University Kraków, Poland
| | - Anna M Osyczka
- Department of Biology and Cell Imaging, Faculty of Biology and Earth Sciences, Jagiellonian University Kraków, Poland
| | - Maria Nowakowska
- Nanotechnology of Polymers and Biomaterials, Faculty of Chemistry, Jagiellonian University Kraków, Poland
| | - Krzysztof Szczubiałka
- Nanotechnology of Polymers and Biomaterials, Faculty of Chemistry, Jagiellonian University Kraków, Poland
| |
Collapse
|
35
|
Khan F, Tanaka M, Ahmad SR. Fabrication of polymeric biomaterials: a strategy for tissue engineering and medical devices. J Mater Chem B 2015; 3:8224-8249. [DOI: 10.1039/c5tb01370d] [Citation(s) in RCA: 153] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Fabrication of biomaterials scaffolds using various methods and techniques is discussed, utilising biocompatible, biodegradable and stimuli-responsive polymers and their composites. This review covers the lithography and printing techniques, self-organisation and self-assembly methods for 3D structural scaffolds generation, and smart hydrogels, for tissue regeneration and medical devices.
Collapse
Affiliation(s)
- Ferdous Khan
- Senior Polymer Chemist
- ECOSE-Biopolymer
- Knauf Insulation Limited
- St. Helens
- UK
| | - Masaru Tanaka
- Biomaterials Science Group
- Department of Biochemical Engineering
- Graduate School of Science and Engineering
- Yamagata University
- Yonezawa
| | - Sheikh Rafi Ahmad
- Centre for Applied Laser Spectroscopy
- CDS
- DEAS
- Cranfield University
- Swindon
| |
Collapse
|