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Sun F, Yang L, Zuo Y. Development of electrospun electroactive polyurethane membranes for bone repairing. J Biomater Appl 2024:8853282241280771. [PMID: 39223505 DOI: 10.1177/08853282241280771] [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: 09/04/2024]
Abstract
To fabricate electroactive fibrous membranes and provide simulated bioelectric micro-environment for bone regeneration mimicking nature periosteum, a series of electroactive polyurethanes (PUAT) were synthesized using amino-capped aniline trimers (AT) and lysine derivatives as chain extenders. These PUAT were fabricated into fibrous membranes as guided bone tissue regeneration membranes (GBRMs) via electrospinning. The ultraviolet-visible (UV-vis) absorption spectroscopy and cyclic voltammetry (CV) of PUAT copolymers showed that the electroactive PUAT fibrous membranes had good electroactivity. Besides, the introduction of AT significantly improved the hydrophobicity and thermal stability of PUAT fibrous membranes and decreased the degradation rate of PUAT fibers in vitro. With the increasing content of AT incorporated into copolymers, the tensile strength and Young's modulus of PUAT fibrous membranes increased from 4 MPa (PUAT0) to 15 MPa (PUAT10) and from 2.1 MPa (PUAT0) to 18 MPa (PUAT10), respectively. The cell morphology and proliferation of rat mesenchymal stem cells (rMSCs) on PUAT fibers indicated that the incorporation of AT enhanced the cell attachment and proliferation. Moreover, the expression levels of OCN, CD31, and VEGF secreted by rMSCs on PUAT fibers increased with the increasing content of AT. In conclusion, an electroactive polyurethane fibrous membrane mimicking natural periosteum was prepared via electrospinning and showed good potential application in guiding bone tissue regeneration.
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Affiliation(s)
- Fuhua Sun
- Rehabilitation Medicine Department, The Affiliated Hospital of Southwest Medical University, Luzhou, P. R. China
- Rehabilitation Medicine and Engineering Key Laboratory of Luzhou, Luzhou, P. R. China
| | - Lishi Yang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, P. R. China
| | - Yi Zuo
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, P. R. China
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2
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Berezina OV, Rykov SV, Schwarz WH, Liebl W. Xanthan: enzymatic degradation and novel perspectives of applications. Appl Microbiol Biotechnol 2024; 108:227. [PMID: 38381223 PMCID: PMC10881899 DOI: 10.1007/s00253-024-13016-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 01/04/2024] [Accepted: 01/11/2024] [Indexed: 02/22/2024]
Abstract
The extracellular heteropolysaccharide xanthan, synthesized by bacteria of the genus Xanthomonas, is widely used as a thickening and stabilizing agent across the food, cosmetic, and pharmaceutical sectors. Expanding the scope of its application, current efforts target the use of xanthan to develop innovative functional materials and products, such as edible films, eco-friendly oil surfactants, and biocompatible composites for tissue engineering. Xanthan-derived oligosaccharides are useful as nutritional supplements and plant defense elicitors. Development and processing of such new functional materials and products often necessitate tuning of xanthan properties through targeted structural modification. This task can be effectively carried out with the help of xanthan-specific enzymes. However, the complex molecular structure and intricate conformational behavior of xanthan create problems with its enzymatic hydrolysis or modification. This review summarizes and analyzes data concerning xanthan-degrading enzymes originating from microorganisms and microbial consortia, with a particular focus on the dependence of enzymatic activity on the structure and conformation of xanthan. Through a comparative study of xanthan-degrading pathways found within various bacterial classes, different microbial enzyme systems for xanthan utilization have been identified. The characterization of these new enzymes opens new perspectives for modifying xanthan structure and developing innovative xanthan-based applications. KEY POINTS: • The structure and conformation of xanthan affect enzymatic degradation. • Microorganisms use diverse multienzyme systems for xanthan degradation. • Xanthan-specific enzymes can be used to develop xanthan variants for novel applications.
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Affiliation(s)
- Oksana V Berezina
- National Research Centre «Kurchatov Institute», Academician Kurchatov Sq. 1, 123182, Moscow, Russian Federation
| | - Sergey V Rykov
- National Research Centre «Kurchatov Institute», Academician Kurchatov Sq. 1, 123182, Moscow, Russian Federation
| | - Wolfgang H Schwarz
- Chair of Microbiology, Technical University of Munich, TUM School of Life Sciences, Emil-Ramann-Str. 4, 85354, Freising, Germany
| | - Wolfgang Liebl
- Chair of Microbiology, Technical University of Munich, TUM School of Life Sciences, Emil-Ramann-Str. 4, 85354, Freising, Germany.
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3
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Zhang Y, Zhu Y, Habibovic P, Wang H. Advanced Synthetic Scaffolds Based on 1D Inorganic Micro-/Nanomaterials for Bone Regeneration. Adv Healthc Mater 2024; 13:e2302664. [PMID: 37902817 DOI: 10.1002/adhm.202302664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/25/2023] [Indexed: 10/31/2023]
Abstract
Inorganic nanoparticulate biomaterials, such as calcium phosphate and bioglass particles, with chemical compositions similar to that of the inorganic component of natural bone, and hence having excellent biocompatibility and bioactivity, are widely used for the fabrication of synthetic bone graft substitutes. Growing evidence suggests that structurally anisotropic, or 1D inorganic micro-/nanobiomaterials are superior to inorganic nanoparticulate biomaterials in the context of mechanical reinforcement and construction of self-supporting 3D network structures. Therefore, in the past decades, efforts have been devoted to developing advanced synthetic scaffolds for bone regeneration using 1D micro-/nanobiomaterials as building blocks. These scaffolds feature extraordinary physical and biological properties, such as enhanced mechanical properties, super elasticity, multiscale hierarchical architecture, extracellular matrix-like fibrous microstructure, and desirable biocompatibility and bioactivity, etc. In this review, an overview of recent progress in the development of advanced scaffolds for bone regeneration is provided based on 1D inorganic micro-/nanobiomaterials with a focus on their structural design, mechanical properties, and bioactivity. The promising perspectives for future research directions are also highlighted.
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Affiliation(s)
- Yonggang Zhang
- State Key Laboratory of Fine Chemicals, School of Bioengineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Yingjie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Pamela Habibovic
- Maastricht University, Minderbroedersberg 4-6, Maastricht, 6211 LK ER, The Netherlands
| | - Huanan Wang
- State Key Laboratory of Fine Chemicals, School of Bioengineering, Dalian University of Technology, Dalian, 116024, P. R. China
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4
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Wang Z, Xu Z, Yang X, Li M, Yip RCS, Li Y, Chen H. Current application and modification strategy of marine polysaccharides in tissue regeneration: A review. BIOMATERIALS ADVANCES 2023; 154:213580. [PMID: 37634336 DOI: 10.1016/j.bioadv.2023.213580] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/24/2023] [Accepted: 08/04/2023] [Indexed: 08/29/2023]
Abstract
Marine polysaccharides (MPs) are exceptional bioactive materials that possess unique biochemical mechanisms and pharmacological stability, making them ideal for various tissue engineering applications. Certain MPs, including agarose, alginate, carrageenan, chitosan, and glucan have been successfully employed as biological scaffolds in animal studies. As carriers of signaling molecules, scaffolds can enhance the adhesion, growth, and differentiation of somatic cells, thereby significantly improving the tissue regeneration process. However, the biological benefits of pure MPs composite scaffold are limited. Therefore, physical, chemical, enzyme modification and other methods are employed to expand its efficacy. Chemically, the structural properties of MPs scaffolds can be altered through modifications to functional groups or molecular weight reduction, thereby enhancing their biological activities. Physically, MPs hydrogels and sponges emulate the natural extracellular matrix, creating a more conducive environment for tissue repair. The porosity and high permeability of MPs membranes and nanomaterials expedite wound healing. This review explores the distinctive properties and applications of select MPs in tissue regeneration, highlighting their structural versatility and biological applicability. Additionally, we provide a brief overview of common modification strategies employed for MP scaffolds. In conclusion, MPs have significant potential and are expected to be a novel regenerative material for tissue engineering.
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Affiliation(s)
- Zhaokun Wang
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Zhiwen Xu
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Xuan Yang
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Man Li
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Ryan Chak Sang Yip
- Center for Nanomedicine, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA.
| | - Yuanyuan Li
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY 14853, USA.
| | - Hao Chen
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China; The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, NO. 1800 Lihu Road, Wuxi 214122, China.
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Barbosa RM, da Rocha DN, Bombaldi de Souza RF, Santos JL, Ferreira JRM, Moraes ÂM. Cell-Friendly Chitosan-Xanthan Gum Membranes Incorporating Hydroxyapatite Designed for Periodontal Tissue Regeneration. Pharmaceutics 2023; 15:pharmaceutics15020705. [PMID: 36840027 PMCID: PMC9962096 DOI: 10.3390/pharmaceutics15020705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/03/2023] [Accepted: 02/11/2023] [Indexed: 02/22/2023] Open
Abstract
In this work, a simple method was proposed to produce dense composite polysaccharide-based membranes to be used for guided tissue and guided bone regeneration. The mucoadhesive polysaccharides chitosan (C) and xanthan gum (X) were used to produce polyelectrolyte-based complex membranes. Hydroxyapatite (HA) was added to the formulation as a potential drug carrier, in C:X:HA mass proportions equal to 1:1:0.4, 1:1:2, and 1:1:10, and also to improve membranes bioactivity and biomimetic properties. FTIR analysis indicated successful incorporation of HA in the membranes and XRD analysis showed that no changes in the HA crystalline structure were observed after incorporation. The residual mass evaluated by TGA was higher for the formulation produced at the proportion 1:1:10. The membranes produced showed asymmetrical surfaces, with distinct roughness. Increasing the HA concentration increased the surface roughness. Greater in vitro proliferation of dental pulp mesenchymal stem cells was observed on the surface of the membrane with 1:1:10 C:X:HA proportion. However, the 1:1:2 formulation showed the most adequate balance of mechanical and biological properties. These results suggest that adding HA to the membranes can influence mechanical parameters as well as cell adhesion and proliferation, supporting the potential application of these materials in regenerative techniques and the treatment of periodontal lesions.
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Affiliation(s)
- Rafael Maza Barbosa
- Department of Engineering of Materials and Bioprocesses, School of Chemical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
- Department of Bioengineering, R-Crio Criogenia S.A., Campinas 13098-324, SP, Brazil
| | | | - Renata Francielle Bombaldi de Souza
- Department of Engineering of Materials and Bioprocesses, School of Chemical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
| | - Jheison Lopes Santos
- Department of Physics, Federal Rural University of Rio de Janeiro, Rio de Janeiro 23890-000, RJ, Brazil
| | | | - Ângela Maria Moraes
- Department of Engineering of Materials and Bioprocesses, School of Chemical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
- Correspondence:
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Wang Z, Su J, Ali A, Yang W, Zhang R, Li Y, Zhang L, Li J. Chitosan and carboxymethyl chitosan mimic biomineralization and promote microbially induced calcium precipitation. Carbohydr Polym 2022; 287:119335. [DOI: 10.1016/j.carbpol.2022.119335] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/01/2022] [Accepted: 03/07/2022] [Indexed: 12/24/2022]
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7
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Ferreira DDCM, Ferreira SO, de Alvarenga ES, Soares NDFF, Coimbra JSDR, de Oliveira EB. Polyelectrolyte complexes obtained from chitosan and carboxymethylcellulose: a physicochemical and microstructural study. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2022. [DOI: 10.1016/j.carpta.2022.100197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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8
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Impact of calcium-carboxylate interactions in cellulose nanofiber reinforced alginate based film with triple-decker-like structure. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Onnainty R, Usseglio N, Bonafé Allende JC, Granero GE. Exploring a new free-standing polyelectrolyte (PEM) thin film as a predictive tool for drug-mucin interactions: Insights on drug transport through mucosal surfaces. Int J Pharm 2021; 604:120764. [PMID: 34087412 DOI: 10.1016/j.ijpharm.2021.120764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/27/2021] [Accepted: 05/30/2021] [Indexed: 11/29/2022]
Abstract
The main objective of the present work was to design a biomimetic free-standing multilayered PEM film, constructed by the layer-by-layer (LbL) assembly approach, based on natural biopolymers and intended to recreate the complex mucus-mimetic matrices in order to provide mechanistic insights into biophysical interactions between drugs and the physiological gel-forming mucin network of mucus that covers the mucosal epithelia named as(CS/ALG)/(PGM) PEM film. The obtained results indicate that mucin may delay or increase drug precipitation on the mucus layer, depending on specific drug-mucin interactions driving drug supersaturation or drug crystallization phenomena. It was found that the drug lipophilicity characteristics governed the mucin binding degree, which had an influencing role on the drug translocation across this gel-like hydrogel. Moreover, the ionization of these drugs did not have a significant role on the drug binding ability to mucin as much as the lipophilicity properties did. The (CS/ALG)/(PGM) PEM film may be a promising tool to routine testing drug-mucus interactions to evaluate biophysical interactions between this protective barrier of the organism against different drug therapeutic products or external aggressive agents, leading to the optimization of drug delivery products or drugs for particular disease states.
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Affiliation(s)
- R Onnainty
- Unidad de Investigación y Desarrollo en TecnologíaFarmacéutica (UNITEFA), CONICET and Departamento de CienciasFarmacéuticas, Facultad de CienciasQuímicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000-HUA Córdoba, Argentina
| | - N Usseglio
- Unidad de Investigación y Desarrollo en TecnologíaFarmacéutica (UNITEFA), CONICET and Departamento de CienciasFarmacéuticas, Facultad de CienciasQuímicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000-HUA Córdoba, Argentina
| | - J C Bonafé Allende
- Departamento de QuímicaOrgánica, Facultad de CienciasQuímicas (Universidad Nacional de Córdoba), IPQA-CONICET, Haya de la Torre y Av. Medina Allende, 5000 Córdoba, Argentina
| | - G E Granero
- Unidad de Investigación y Desarrollo en TecnologíaFarmacéutica (UNITEFA), CONICET and Departamento de CienciasFarmacéuticas, Facultad de CienciasQuímicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000-HUA Córdoba, Argentina.
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10
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Efficient Prediction of In Vitro Piroxicam Release and Diffusion From Topical Films Based on Biopolymers Using Deep Learning Models and Generative Adversarial Networks. J Pharm Sci 2021; 110:2531-2543. [PMID: 33548245 DOI: 10.1016/j.xphs.2021.01.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 12/12/2022]
Abstract
The purpose of this study was to simultaneously predict the drug release and skin permeation of Piroxicam (PX) topical films based on Chitosan (CTS), Xanthan gum (XG) and its Carboxymethyl derivatives (CMXs) as matrix systems. These films were prepared by the solvent casting method, using Tween 80 (T80) as a permeation enhancer. All of the prepared films were assessed for their physicochemical parameters, their in vitro drug release and ex vivo skin permeation studies. Moreover, deep learning models and machine learning models were applied to predict the drug release and permeation rates. The results indicated that all of the films exhibited good consistency and physicochemical properties. Furthermore, it was noticed that when T80 was used in the optimal formulation (F8) based on CTS-CMX3, a satisfactory drug release pattern was found where 99.97% of PX was released and an amount of 1.18 mg/cm2 was permeated after 48 h. Moreover, Generative Adversarial Network (GAN) efficiently enhanced the performance of deep learning models and DNN was chosen as the best predictive approach with MSE values equal to 0.00098 and 0.00182 for the drug release and permeation kinetics, respectively. DNN precisely predicted PX dissolution profiles with f2 values equal to 99.99 for all the formulations.
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Inphonlek S, Niamsiri N, Sunintaboon P, Sirisinha C. Chitosan/xanthan gum porous scaffolds incorporated with in-situ-formed poly(lactic acid) particles: Their fabrication and ability to adsorb anionic compounds. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Biomimicry of microbial polysaccharide hydrogels for tissue engineering and regenerative medicine – A review. Carbohydr Polym 2020; 241:116345. [DOI: 10.1016/j.carbpol.2020.116345] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/13/2020] [Accepted: 04/17/2020] [Indexed: 12/17/2022]
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13
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Wang J, Zhou L, Sun Q, Cai H, Tan WS. Porous chitosan derivative scaffolds affect proliferation and osteogenesis of mesenchymal stem cell via reducing intracellular ROS. Carbohydr Polym 2020; 237:116108. [DOI: 10.1016/j.carbpol.2020.116108] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 02/17/2020] [Accepted: 03/02/2020] [Indexed: 02/07/2023]
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14
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Characterization and toxicology evaluation of low molecular weight chitosan on zebrafish. Carbohydr Polym 2020; 240:116164. [PMID: 32475540 DOI: 10.1016/j.carbpol.2020.116164] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 03/05/2020] [Accepted: 03/11/2020] [Indexed: 02/01/2023]
Abstract
Chitosan is suggested as no or low toxicity and biocompatible biomaterial. Digestion of chitosan to reduce molecular weight and formulate nanoparticle was generally used to improve efficiency for DNA or protein delivery. However, the toxicity of low-molecular-weight chitosan (LMWCS) towards freshwater fishes has not been well evaluated. Here, we reported the toxic mechanism of LMWCS using zebrafish (Danio rerio) liver (ZFL) cell line, zebrafish larvae, and adult fish. LMWCS rapidly induced cytotoxicity of ZFL cells and death of zebrafish. Cell membrane damaged by LMWCS reduced cell viability. Damaged membrane of epithelial cell in zebrafish larvae induced breakage of the yolk. Adult fish exhibited hypoxia before death due to multiple damages induced by LMWCS. Although the toxicity of LMWCS was revealed in zebrafish model, the toxicity was only present in pH < 7 and easy be neutralized by other negative ions. Collectively, these data improved a new understanding of LMWCS properties.
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Vinicius Beserra Dos Santos M, Bastos Nogueira Rocha L, Gomes Vieira E, Leite Oliveira A, Oliveira Lobo A, de Carvalho MAM, Anteveli Osajima J, Cavalcanti Silva-Filho E. Development of Composite Scaffolds Based on Cerium Doped-Hydroxyapatite and Natural Gums-Biological and Mechanical Properties. MATERIALS 2019; 12:ma12152389. [PMID: 31357470 PMCID: PMC6695794 DOI: 10.3390/ma12152389] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 01/06/2023]
Abstract
Hydroxyapatite (HAp) is a ceramic material composing the inorganic portion of bones. Ionic substitutions enhance characteristics of HAp, for example, calcium ions (Ca2+) by cerium ions (Ce3+). The use of HAp is potentialized through biopolymers, cashew gum (CG), and gellan gum (GG), since CG/GG is structuring agents in the modeling of structured biocomposites, scaffolds. Ce-HApCG biocomposite was synthesized using a chemical precipitation method. The obtained material was frozen (–20 °C for 24 h), and then vacuum dried for 24 h. The Ce-HApCG was characterized by X-Ray diffractograms (XRD), X-ray photoemission spectra (XPS), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), and energy dispersive spectroscopy (EDS). XRD and FTIR showed that Ce-HApCG was successfully synthesized. XRD showed characteristic peaks at 2θ = 25.87 and 32.05, corresponding to the crystalline planes (0 0 2) and (2 1 1), respectively, while phosphate bands were present at 1050 cm−1 and 1098 cm−1, indicating the success of composite synthesis. FESEM showed pores and incorporated nanostructured granules of Ce-HApCG. The mechanical test identified that Ce-HApCG has a compressive strength similar to the cancellous bone’s strength and some allografts used in surgical procedures. In vitro tests (MTT assay and hemolysis) showed that scaffold was non-toxic and exhibited low hemolytic activity. Thus, the Ce-HApCG has potential for application in bone tissue engineering.
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Affiliation(s)
- Marcus Vinicius Beserra Dos Santos
- LIMAV, Interdisciplinary Laboratory for Advanced Materials, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella, Teresina, 64049-550 Piaui, Brazil
| | - Lorenna Bastos Nogueira Rocha
- NUPCELT, Interdisciplinary Laboratory for Advanced Materials, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella, Teresina, 64064-260 Piaui, Brazil
| | - Ewerton Gomes Vieira
- LIMAV, Interdisciplinary Laboratory for Advanced Materials, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella, Teresina, 64049-550 Piaui, Brazil
| | - Ana Leite Oliveira
- Center of Biotechnology and Fine Chemical, Universidade Catolica Portuguesa, 4169-005 Porto, Portugal
| | - Anderson Oliveira Lobo
- LIMAV, Interdisciplinary Laboratory for Advanced Materials, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella, Teresina, 64049-550 Piaui, Brazil
| | - Maria Acelina Martins de Carvalho
- NUPCELT, Interdisciplinary Laboratory for Advanced Materials, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella, Teresina, 64064-260 Piaui, Brazil
| | - Josy Anteveli Osajima
- LIMAV, Interdisciplinary Laboratory for Advanced Materials, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella, Teresina, 64049-550 Piaui, Brazil
| | - Edson Cavalcanti Silva-Filho
- LIMAV, Interdisciplinary Laboratory for Advanced Materials, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella, Teresina, 64049-550 Piaui, Brazil.
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Wang D, Jang J, Kim K, Kim J, Park CB. "Tree to Bone": Lignin/Polycaprolactone Nanofibers for Hydroxyapatite Biomineralization. Biomacromolecules 2019; 20:2684-2693. [PMID: 31117353 DOI: 10.1021/acs.biomac.9b00451] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Bone contains an organic matrix composed of aligned collagen fibers embedded with nanosized inorganic hydroxyapatite (HAp). Many efforts are being made to mimic the natural mineralization process and create artificial bone scaffolds that show elaborate morphologies, excellent mechanical properties, and vital biological functions. This study reports a newly discovered function of lignin mediating the formation of human bone-like HAp. Lignin is the second most abundant organic material in nature, and it exhibits many attractive properties for medical applications, such as high durability, stability, antioxidant and antibacterial activities, and biocompatibility. Numerous phenolic and aliphatic hydroxyl moieties exist in the side chains of lignin, which donate adequate reactive sites for chelation with Ca2+ and the subsequent nucleation of HAp through coprecipitation of Ca2+ and PO43-. The growth of HAp crystals was facilitated by simple incubation of the electrospun lignin/polycaprolactone (PCL) matrix in a simulated body fluid. Multiple analyses revealed that HAp crystals were structurally and mechanically similar to the native bone. Furthermore, the mineralized lignin/PCL nanofibrous films facilitated efficient adhesion and proliferation of osteoblasts by directing filopodial extension. Our results underpin the expectations for this lignin-based biomaterial in future biointerfaces and hard-tissue engineering.
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Affiliation(s)
- Ding Wang
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Republic of Korea
| | - Jinhyeong Jang
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Republic of Korea
| | - Kayoung Kim
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Republic of Korea
| | - Jinhyun Kim
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Republic of Korea
| | - Chan Beum Park
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Daejeon 34141 , Republic of Korea
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