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Colaço E, Lefèvre D, Maisonhaute E, Brouri D, Guibert C, Dupont-Gillain C, El Kirat K, Demoustier-Champagne S, Landoulsi J. Enzyme-assisted mineralization of calcium phosphate: exploring confinement for the design of highly crystalline nano-objects. NANOSCALE 2020; 12:10051-10064. [PMID: 32347883 DOI: 10.1039/d0nr01638a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In hard tissues of vertebrates, calcium phosphate (CaP) biomineralization is a fascinating process that combines specific physicochemical and biochemical reactions, resulting in the formation of extracellular matrices with elegant nanoarchitectures. Although several "biomimetic" strategies have been developed for the design of mineralized nanostructured biointerfaces, the control of the crystallization process remains complex. Herein, we report an innovative approach to overcome this challenge by generating, in situ, CaP precursors in a confined medium. For this purpose, we explore a combination of (i) the layer-by-layer assembly, (ii) the template-based method and (iii) the heterogeneous enzymatic catalysis. We show the possibility of embedding active alkaline phosphatase in a nanostructured multilayered film and inducing the nucleation and growth of CaP compounds under different conditions. Importantly, we demonstrate that the modulation of the crystal phase from spheroid-shaped amorphous CaP to crystalline platelet-shaped hydroxyapatite depends on the degree of confinement of active enzymes. This leads to the synthesis of highly anisotropic mineralized nanostructures that are mechanically stable and with controlled dimensions, composition and crystal phase. The present study provides a straightforward, yet powerful, way to design anisotropic nanostructured materials, including a self-supported framework, which may be used in broad biomedical applications.
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Affiliation(s)
- E Colaço
- Laboratoire de Biomécanique & Bioingénierie, CNRS, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France
| | - D Lefèvre
- Institute of Condensed Matter and Nanosciences, Bio & Soft Matter, Université catholique de Louvain, Croix du Sud 1 (L7.04.02), 1348, Louvain-la-Neuve, Belgium.
| | - E Maisonhaute
- Sorbonne Université, CNRS, Laboratoire Interfaces et Systèmes Electrochimiques, LISE, F-75005 Paris, France
| | - D Brouri
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, LRS, F-75005 Paris, France.
| | - C Guibert
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, LRS, F-75005 Paris, France.
| | - C Dupont-Gillain
- Institute of Condensed Matter and Nanosciences, Bio & Soft Matter, Université catholique de Louvain, Croix du Sud 1 (L7.04.02), 1348, Louvain-la-Neuve, Belgium.
| | - K El Kirat
- Laboratoire de Biomécanique & Bioingénierie, CNRS, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France
| | - S Demoustier-Champagne
- Institute of Condensed Matter and Nanosciences, Bio & Soft Matter, Université catholique de Louvain, Croix du Sud 1 (L7.04.02), 1348, Louvain-la-Neuve, Belgium.
| | - J Landoulsi
- Laboratoire de Biomécanique & Bioingénierie, CNRS, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France and Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, LRS, F-75005 Paris, France.
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Guo X, Xu D, Zhao Y, Gao H, Shi X, Cai J, Deng H, Chen Y, Du Y. Electroassembly of Chitin Nanoparticles to Construct Freestanding Hydrogels and High Porous Aerogels for Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34766-34776. [PMID: 31429547 DOI: 10.1021/acsami.9b13063] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The construction of polymeric nanocomponents into a hierarchical structure poses great importance for subsequent biomedical applications. Herein, we report for the first time the electroassembly of chitin nanoparticles (14 nm ± 3 nm from transmission electron microscopy) to construct thick and freestanding hydrogels, which can be further dried to obtain high porous and tough aerogels for wound healing. The electroassembly is a simple, straightforward, and controllable process, which crucially depends on the pH of the chitin nanoparticle suspension and the degree of deacetylation of chitin. Interestingly, the electroassembly of chitin nanoparticles is completely reversible, suggesting the physical assembly feature of the freestanding hydrogel. By using supercritical CO2 drying and freeze-drying, chitin aerogels and cryogels can be facilely obtained. Because of the intriguing features (i.e., large surface area, interconnected porous structure, and enhanced hydrophilicity), chitin aerogels demonstrate adorable performance to accelerate the healing of wounds.
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Affiliation(s)
- Xiaojia Guo
- School of Resource and Environmental Sciences, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials , Wuhan University , Wuhan 430079 , China
| | - Duoduo Xu
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | | | - Huimin Gao
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | - Xiaowen Shi
- School of Resource and Environmental Sciences, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials , Wuhan University , Wuhan 430079 , China
| | - Jie Cai
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
- Research Institute of Shenzhen , Wuhan University , Shenzhen 518057 , China
| | - Hongbing Deng
- School of Resource and Environmental Sciences, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials , Wuhan University , Wuhan 430079 , China
| | | | - Yumin Du
- School of Resource and Environmental Sciences, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials , Wuhan University , Wuhan 430079 , China
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Wang X, Kim JH, Choi YB, Kim HH, Kim CJ. Fabrication of optimally configured layers of SWCNTs, gold nanoparticles, and glucose oxidase on ITO electrodes for high-power enzymatic biofuel cells. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-019-0278-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Lefèvre D, Louvegny J, Naudin M, Ferain E, Dupont-Gillain C, Demoustier-Champagne S. Biofunctionalized and self-supported polypyrrole frameworks as nanostructured ECM-like biointerfaces. RSC Adv 2018; 8:22932-22943. [PMID: 35540120 PMCID: PMC9081635 DOI: 10.1039/c8ra00325d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/13/2018] [Indexed: 11/21/2022] Open
Abstract
Hybrid nanobiointerfaces were designed as an original contribution to the challenge of synthesizing nanostructured biomaterials integrating a set of cell fate-determining cues, originally provided to cells by the extracellular matrix (ECM). The produced biointerfaces consist of a stiff framework of intersected polypyrrole (PPy) nanotubes supporting a soft multilayer composed of ECM-derived biomacromolecules: collagen (Col) and hyaluronic acid (HA). PPy frameworks with highly tunable characteristics were synthesized through chemical oxidative polymerization of pyrrole monomers, templated within track-etched polycarbonate (PC) membranes featuring a network of intersected nanopores. PPy interfaces with a porosity of 80%, composed of nanotubes with an average diameter ranging from 40 to 300 nm, intersecting at an angle of 90°, were shown to be self-supported. These rigid PPy nanostructured interfaces were functionalized with a self-assembling (HA/Col) multilayer deposited via a layer-by-layer process. Biofunctionalized and unmodified PPy frameworks were both shown to promote sustained cell adhesion, therefore demonstrating the cytocompatibility of the engineered matrices. Such nanobiointerfaces, combining a mechanically-stable framework of tunable dimensions with a soft biopolymeric multilayer of highly versatile nature, pave the way towards cell-instructive biomaterials able to gather a wide range of cues guiding cell behavior. The developed self-supported structures could be used as a coating or as membranes bridging different tissues. A versatile template-based approach allows for the synthesis of nanostructured biointerfaces, made of core–shell nanotubes, combining bioactivity and mechanical stability.![]()
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Affiliation(s)
- Damien Lefèvre
- Institute of Condensed Matter and Nanosciences (Bio & Soft Matter)
- Louvain-la-Neuve
- Belgium
| | - Juliette Louvegny
- Institute of Condensed Matter and Nanosciences (Bio & Soft Matter)
- Louvain-la-Neuve
- Belgium
| | - Mathieu Naudin
- Institute of Condensed Matter and Nanosciences (Bio & Soft Matter)
- Louvain-la-Neuve
- Belgium
| | - Etienne Ferain
- Institute of Condensed Matter and Nanosciences (Bio & Soft Matter)
- Louvain-la-Neuve
- Belgium
- It4ip S.A
- Louvain-la-Neuve
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Griffin M, Ibrahim A, Seifalian A, Butler P, Kalaskar D, Ferretti P. Chemical group-dependent plasma polymerisation preferentially directs adipose stem cell differentiation towards osteogenic or chondrogenic lineages. Acta Biomater 2017; 50:450-461. [PMID: 27956359 PMCID: PMC5331891 DOI: 10.1016/j.actbio.2016.12.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 11/25/2016] [Accepted: 12/07/2016] [Indexed: 12/17/2022]
Abstract
Human adipose derived stem cells (ADSCs) are being explored for the repair of craniofacial defects due to their multi-differentiation potential and ease of isolation and expansion. Crucial to using ADSCs for craniofacial repair is the availability of materials with appropriate biomechanical properties that can support their differentiation into bone and cartilage. We tested the hypothesis that different modifications of chemical groups on the surface of a nanocomposite polymer could increase human ADSC adhesion and selectively enhance their osteogenic and chondrogenic differentiation. We show that the COOH modification significantly promoted initial cell adhesion and proliferation over 14 days compared to NH2 surfaces. Expression of focal adhesion kinase and vinculin was enhanced after plasma surface polymerisation at 24 h. The COOH modification significantly enhanced chondrogenic differentiation as indicated by up-regulation of aggrecan and collagen II transcripts. In contrast, NH2 group functionalised scaffolds promoted osteogenic differentiation with significantly enhanced expression of collagen I, alkaline phosphatase and osteocalcin both at the gene and protein level. Finally, chorioallantoic membrane grafting demonstrated that both NH2 and COOH functionalised scaffolds seeded with ADSCs were biocompatible and supported vessel ingrowth apparently to a greater degree than unmodified scaffolds. In summary, our study shows the ability to direct ADSC chondrogenic and osteogenic differentiation by deposition of different chemical groups through plasma surface polymerisation. Hence this approach could be used to selectively enhance bone or cartilage formation before implantation in vivo to repair skeletal defects. Statement of Significance Human adipose derived stem cells (hADSCs) are an exciting stem cell source for regenerative medicine due to their plentiful supply and ease of isolation. However, the optimal environmental cues to direct stem cells towards certain lineages change have to has not been identified. We have shown that by modifying the surface of the scaffold with specific chemical groups using plasma surface polymerisation techniques we can control ADSCs differentiation. This study shows that ADSCs can be differentiated towards osteogenic and chondrogenic lineages on amine (NH2) and carboxyl (COOH) modified scaffolds respectively. Plasma polymerisation can be easily applied to other biomaterial surfaces to direct stem cell differentiation for the regeneration of bone and cartilage.
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Understanding and controlling type I collagen adsorption and assembly at interfaces, and application to cell engineering. Colloids Surf B Biointerfaces 2014; 124:87-96. [DOI: 10.1016/j.colsurfb.2014.08.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 08/21/2014] [Accepted: 08/22/2014] [Indexed: 02/01/2023]
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Leszczak V, Popat KC. Improved in vitro blood compatibility of polycaprolactone nanowire surfaces. ACS APPLIED MATERIALS & INTERFACES 2014; 6:15913-24. [PMID: 25184556 PMCID: PMC4173746 DOI: 10.1021/am503508r] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Accepted: 09/03/2014] [Indexed: 05/27/2023]
Abstract
There are a multitude of polymeric materials currently utilized to prepare a variety of blood-contacting implantable medical devices. These devices include tissue grafts, coronary artery and vascular stents, and orthopedic implants. The thrombogenic nature of such materials can cause serious complications in patients, and ultimately lead to functional failure. To date, there is no truly hemocompatible biomaterial surface. Nanostructured surfaces improve cellular interactions but there is a limited amount of information regarding their blood compatibility. In this study, the in vitro blood compatibility of four different surfaces (control, PCL; nanowire, NW; collagen immobilized control, cPCL; collagen immobilized nanowire, cNW) were investigated for their use as interfaces for blood-contacting implants. The results presented here indicate enhanced in vitro blood compatibility of nanowire surfaces compared control surfaces. Although there were no significant differences in leukocyte adhesion, there was a decrease in platelet adhesion on NW surfaces. Scanning electron microscopy images showed a decrease in platelet/leukocyte complexes on cNW surfaces and no apparent complexes were formed on NW surfaces compared to PCL and cPCL surfaces. The increase in these complexes likely contributed to a higher expression of specific markers for platelet and leukocyte activation on PCL and cPCL surfaces. No significant differences were found in contact and complement activation on any surface. Further, thrombin antithrombin complexes were significantly reduced on NW surfaces. A significant increase in hemolysis and fibrinogen adsorption was identified on PCL surfaces likely caused by its hydrophobic surface. This work shows the improved blood-compatibility of nanostructured surfaces, identifying this specific nanoarchitecture as a potential interface for promoting the long-term success of blood-contacting biomaterials.
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Affiliation(s)
- Victoria Leszczak
- Department
of Mechanical Engineering, School of Biomedical Engineering, Colorado State University, Fort
Collins, Colorado 80523, United States
| | - Ketul C. Popat
- Department
of Mechanical Engineering, School of Biomedical Engineering, Colorado State University, Fort
Collins, Colorado 80523, United States
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