1
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Dong H, Wang D, Deng H, Yin L, Wang X, Yang W, Cai K. Application of a calcium and phosphorus biomineralization strategy in tooth repair: a systematic review. J Mater Chem B 2024; 12:8033-8047. [PMID: 39045831 DOI: 10.1039/d4tb00867g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Biomineralization is a natural process in which organisms regulate the growth of inorganic minerals to form biominerals with unique layered structures, such as bones and teeth, primarily composed of calcium and phosphorus. Tooth decay significantly impacts our daily lives, and the key to tooth regeneration lies in restoring teeth through biomimetic approaches, utilizing mineralization strategies or materials that mimic natural processes. This review delves into the types, properties, and transformations of calcium and phosphorus minerals, followed by an exploration of the mechanisms behind physiological and pathological mineralization in living organisms. It summarizes the mechanisms and commonalities of biomineralization and discusses the advancements in dental biomineralization research, guided by insights into calcium and phosphorus mineral biomineralization. This review concludes by addressing the current challenges and future directions in the field of dental biomimetic mineralization.
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Affiliation(s)
- Haide Dong
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
- Dencare (Chongqing) Oral Care Co., Ltd, Chongqing, People's Republic of China
| | - Danyang Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Hanyue Deng
- Duke Kunshan University - Media Art - Creative Practice Kunshan, Jiangsu 215316, China
| | - Lijuan Yin
- Dencare (Chongqing) Oral Care Co., Ltd, Chongqing, People's Republic of China
| | - Xiongying Wang
- Dencare (Chongqing) Oral Care Co., Ltd, Chongqing, People's Republic of China
| | - Weihu Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China.
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2
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Gomez-Romero P, Pokhriyal A, Rueda-García D, Bengoa LN, González-Gil RM. Hybrid Materials: A Metareview. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2024; 36:8-27. [PMID: 38222940 PMCID: PMC10783426 DOI: 10.1021/acs.chemmater.3c01878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 11/11/2023] [Accepted: 11/13/2023] [Indexed: 01/16/2024]
Abstract
The field of hybrid materials has grown so wildly in the last 30 years that writing a comprehensive review has turned into an impossible mission. Yet, the need for a general view of the field remains, and it would be certainly useful to draw a scientific and technological map connecting the dots of the very different subfields of hybrid materials, a map which could relate the essential common characteristics of these fascinating materials while providing an overview of the very different combinations, synthetic approaches, and final applications formulated in this field, which has become a whole world. That is why we decided to write this metareview, that is, a review of reviews that could provide an eagle's eye view of a complex and varied landscape of materials which nevertheless share a common driving force: the power of hybridization.
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Affiliation(s)
- Pedro Gomez-Romero
- Novel
Energy-Oriented Materials Group at Catalan Institute of Nanoscience
and Nanotechnology (ICN2) CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Anukriti Pokhriyal
- Novel
Energy-Oriented Materials Group at Catalan Institute of Nanoscience
and Nanotechnology (ICN2) CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Daniel Rueda-García
- Napptilus
Battery Labs, Tech Barcelona
01, Plaça de Pau Vila, 1, Oficina 2B, 08039 Barcelona, Spain
| | - Leandro N. Bengoa
- Novel
Energy-Oriented Materials Group at Catalan Institute of Nanoscience
and Nanotechnology (ICN2) CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Rosa M. González-Gil
- Novel
Energy-Oriented Materials Group at Catalan Institute of Nanoscience
and Nanotechnology (ICN2) CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
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3
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Zhang K, Liu Y, Zhao Z, Shi X, Zhang R, He Y, Zhang H, Sun Y, Wang W. Synthesis Technology of Magnesium-Doped Nanometer Hydroxyapatite: A Review. ACS OMEGA 2023; 8:44458-44471. [PMID: 38046298 PMCID: PMC10688058 DOI: 10.1021/acsomega.3c06091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 12/05/2023]
Abstract
Ion substitution techniques for nanoparticles have become an important neighborhood of biomedical engineering and have led to the development of innovative bioactive materials for health systems. Magnesium-doped nanohydroxyapatite (Mg-nHA) has good bone conductivity, biological activity, flexural strength, and fracture toughness due to particle doping technology, making it an ideal candidate material for biomedical applications. In this Review, we have systematically presented the synthesis methods of Mg-nHA and their application in the field of biomedical science and highlighted the pros and cons of each method. Finally, some future prospects for this important neighborhood are proposed. The purpose of this Review is to provide readers with an understanding of this new field of research on bioactive materials with innovative functions and systematically introduce the latest technologies for obtaining uniform, continuous, and morphologically diverse Mg-nHA.
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Affiliation(s)
- Kui Zhang
- The
First Clinical Medical College of Lanzhou University, Lanzhou, Gansu 730000, China
| | - Yan Liu
- Department
of Gynecology, First Affiliated Hospital
of Xi ’an Medical College, Xi’an, Shaanxi 710000, China
| | - Zhenrui Zhao
- The
First Clinical Medical College of Lanzhou University, Lanzhou, Gansu 730000, China
| | - Xuewen Shi
- The
First Clinical Medical College of Lanzhou University, Lanzhou, Gansu 730000, China
| | - Ruihao Zhang
- The
First Clinical Medical College of Lanzhou University, Lanzhou, Gansu 730000, China
| | - Yixiang He
- The
First Clinical Medical College of Lanzhou University, Lanzhou, Gansu 730000, China
| | - Huaibin Zhang
- The
First Clinical Medical College of Lanzhou University, Lanzhou, Gansu 730000, China
| | - Yi Sun
- The
First Clinical Medical College of Lanzhou University, Lanzhou, Gansu 730000, China
| | - Wenji Wang
- Department
of Orthopedics, The First Hospital of Lanzhou
University, Lanzhou, Gansu 730000, China
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4
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Daood U, Fawzy A. Development of a bioactive dentin adhesive resin modified with magnesium-doped synthetic hydroxyapatite crystals. J Mech Behav Biomed Mater 2023; 140:105737. [PMID: 36827934 DOI: 10.1016/j.jmbbm.2023.105737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/19/2023]
Abstract
The aim is to evaluate the development of an experimental multi-mode/Universal resin-based dentin adhesive modified with synthetic Mg2+ doped hydroxyapatite crystals (HAp) having self-remineralization and antibiofilm properties. HAp doped with Mg2+ was prepared by the precipitation method. Experimental adhesives were subjected to degree of conversion and X-ray diffraction test for size and crystal structure. Bond strength was tested, and electron microscopy (SEM/TEM) imaging of resin-dentin interface was done along with nanoleakage, nanoindentation, confocal and Raman analyses. S. mutans was analysed using CLSM images against modified adhesive specimens. Nucleating abilities within the resin-dentin specimens are determined by measuring Ca2+. Alkaline phosphatase, Runx2, and Ocn transcripts are amplified using quantitative polymerase chain reaction (q-PCR). A calcium assay is performed to quantify level of mineralisation. When compared to control adhesives, the 0.5% Hap/Mg2+ containing experimental dentin adhesive demonstrated improved interaction with dentin. The preservation of uniform intact hybrid layer with the absence of nanoleakage indicated dentin bond integrity with 0.5% HAP/Mg2+ modified adhesive. Self-remineralization and antibiofilm potentials are supported.
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Affiliation(s)
- Umer Daood
- Restorative Division, School of Dentistry, International Medical University Kuala Lumpur, Bukit Jalil, 57000, Kuala Lumpur, Malaysia.
| | - Amr Fawzy
- UWA Dental School, University of Western Australia, Nedlands, WA, 6009, Australia
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5
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Arias-Betancur A, Badilla-Wenzel N, Astete-Sanhueza Á, Farfán-Beltrán N, Dias FJ. Carrier systems for bone morphogenetic proteins: An overview of biomaterials used for dentoalveolar and maxillofacial bone regeneration. JAPANESE DENTAL SCIENCE REVIEW 2022; 58:316-327. [PMID: 36281233 PMCID: PMC9587372 DOI: 10.1016/j.jdsr.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 09/14/2022] [Accepted: 10/11/2022] [Indexed: 11/27/2022] Open
Abstract
Different types of biomaterials have been used to fabricate carriers to deliver bone morphogenetic proteins (BMPs) in both dentoalveolar and maxillofacial bone regeneration procedures. Despite that absorbable collagen sponge (ACS) is considered the gold standard for BMP delivery, there is still some concerns regarding its use mainly due to its poor mechanical properties. To overcome this, novel systems are being developed, however, due to the wide variety of biomaterial combination, the heterogeneous assessment of newly formed tissue, and the intended clinical applications, there is still no consensus regarding which is more efficient in a particular clinical scenario. The combination of two or more biomaterials in different topological configurations has allowed specific controlled-release patterns for BMPs, improving their biological and mechanical properties compared with classical single-material carriers. However, more basic research is needed. Since the BMPs can be used in multiple clinical scenarios having different biological and mechanical needs, novel carriers should be developed in a context-specific manner. Thus, the purpose of this review is to gather current knowledge about biomaterials used to fabricate delivery systems for BMPs in both dentoalveolar and maxillofacial contexts. Aspects related with the biological, physical and mechanical characteristics of each biomaterial are also presented and discussed. Strategies for bone formation and regeneration are a major concern in dentistry. Topical delivery of bone morphogenetic proteins (BMPs) allows rapid bone formation. BMPs requires proper carrier system to allow controlled and sustained release. Carrier should also fulfill mechanical requirements of bone defect sites. By using complex composites, it would be possible to develop new carriers for BMPs.
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Affiliation(s)
- Alain Arias-Betancur
- Department of Integral Adult Dentistry, Research Centre for Dental Sciences (CICO-UFRO), Dental School-Facultad de Odontología, Universidad de La Frontera, Temuco 4811230, Chile
| | - Nicolás Badilla-Wenzel
- Dental School-Facultad de Odontología, Universidad de La Frontera, Temuco 4811230, Chile
| | - Álvaro Astete-Sanhueza
- Dental School-Facultad de Odontología, Universidad de La Frontera, Temuco 4811230, Chile
| | - Nicole Farfán-Beltrán
- Department of Integral Adult Dentistry, Research Centre for Dental Sciences (CICO-UFRO), Dental School-Facultad de Odontología, Universidad de La Frontera, Temuco 4811230, Chile.,Universidad Adventista de Chile, Chillán 3780000, Chile
| | - Fernando José Dias
- Department of Integral Adult Dentistry, Oral Biology Research Centre (CIBO-UFRO), Dental School-Facultad de Odontología, Universidad de La Frontera, Temuco 4811230, Chile
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6
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Calcium Phosphate-Based Biomaterials for Bone Repair. J Funct Biomater 2022; 13:jfb13040187. [PMID: 36278657 PMCID: PMC9589993 DOI: 10.3390/jfb13040187] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/03/2022] [Accepted: 10/10/2022] [Indexed: 11/07/2022] Open
Abstract
Traumatic, tumoral, and infectious bone defects are common in clinics, and create a big burden on patient's families and society. Calcium phosphate (CaP)-based biomaterials have superior properties and have been widely used for bone defect repair, due to their similarities to the inorganic components of human bones. The biological performance of CaPs, as a determining factor for their applications, are dependent on their physicochemical properties. Hydroxyapatite (HAP) as the most thermally stable crystalline phase of CaP is mostly used in the form of ceramics or composites scaffolds with polymers. Nanostructured CaPs with large surface areas are suitable for drug/gene delivery systems. Additionally, CaP scaffolds with hierarchical nano-/microstructures have demonstrated excellent ability in promoting bone regeneration. This review focuses on the relationships and interactions between the physicochemical/biological properties of CaP biomaterials and their species, sizes, and morphologies in bone regeneration, including synthesis strategies, structure control, biological behavior, and the mechanisms of CaP in promoting osteogenesis. This review will be helpful for scientists and engineers to further understand CaP-based biomaterials (CaPs), and be useful in developing new high-performance biomaterials for bone repair.
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7
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Design Strategies and Biomimetic Approaches for Calcium Phosphate Scaffolds in Bone Tissue Regeneration. Biomimetics (Basel) 2022; 7:biomimetics7030112. [PMID: 35997432 PMCID: PMC9397031 DOI: 10.3390/biomimetics7030112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/05/2022] [Accepted: 08/07/2022] [Indexed: 11/16/2022] Open
Abstract
Bone is a complex biologic tissue, which is extremely relevant for various physiological functions, in addition to movement, organ protection, and weight bearing. The repair of critical size bone defects is a still unmet clinical need, and over the past decades, material scientists have been expending efforts to find effective technological solutions, based on the use of scaffolds. In this context, biomimetics which is intended as the ability of a scaffold to reproduce compositional and structural features of the host tissues, is increasingly considered as a guide for this purpose. However, the achievement of implants that mimic the very complex bone composition, multi-scale structure, and mechanics is still an open challenge. Indeed, despite the fact that calcium phosphates are widely recognized as elective biomaterials to fabricate regenerative bone scaffolds, their processing into 3D devices with suitable cell-instructing features is still prevented by insurmountable drawbacks. With respect to biomaterials science, new approaches maybe conceived to gain ground and promise for a substantial leap forward in this field. The present review provides an overview of physicochemical and structural features of bone tissue that are responsible for its biologic behavior. Moreover, relevant and recent technological approaches, also inspired by natural processes and structures, are described, which can be considered as a leverage for future development of next generation bioactive medical devices.
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8
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Kong W, Du Q, Qu Y, Shao C, Chen C, Sun J, Mao C, Tang R, Gu X. Tannic acid induces dentin biomineralization by crosslinking and surface modification. RSC Adv 2022; 12:3454-3464. [PMID: 35425384 PMCID: PMC8979257 DOI: 10.1039/d1ra07887a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/16/2022] [Indexed: 11/21/2022] Open
Abstract
It is currently known that crosslinking agents can effectively improve the mechanical properties of dentin by crosslinking type I collagen. However, few scholars have focused on the influence of crosslinking agents on the collagen-mineral interface after crosslinking. Analysis of the Fourier transform infrared spectroscopy (FTIR) results showed that hydrogen bonding occurs between the tannic acid (TA) molecule and the collagen. The crosslinking degree of TA to collagen reached a maximum 41.28 ± 1.52. This study used TA crosslinked collagen fibers to successfully induce dentin biomineralization, and the complete remineralization was achieved within 4 days. The crosslinking effect of TA can improve the mechanical properties and anti-enzyme properties of dentin. The elastic modulus (mean and standard deviation) and hardness values of the remineralized dentin pretreated with TA reached 19.1 ± 1.12 GPa and 0.68 ± 0.06 GPa, respectively, which were close to those of healthy dentin measurements, but significantly higher than those of dentin without crosslinking (8.91 ± 1.82 GPa and 0.16 ± 0.01 GPa). The interface energy between the surface of collagen fibers and minerals decreased from 10.59 mJ m-2 to 4.19 mJ m-2 with the influence of TA. The current work reveals the importance of tannic acid crosslinking for dentin remineralization while providing profound insights into the interfacial control of biomolecules in collagen mineralization.
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Affiliation(s)
- Weijing Kong
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University Hangzhou P. R. China
| | - Qiaolin Du
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University Hangzhou P. R. China
| | - Yinan Qu
- Real Dental Guangzhou P. R. China
| | - Changyu Shao
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University Hangzhou P. R. China
| | - Chaoqun Chen
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University Hangzhou P. R. China
| | - Jian Sun
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University Hangzhou P. R. China
| | - Caiyun Mao
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University Hangzhou P. R. China
| | - Ruikang Tang
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University Hangzhou P. R. China
| | - Xinhua Gu
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University Hangzhou P. R. China
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9
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Zhong Z, Wu X, Wang Y, Li M, Li Y, Liu X, Zhang X, Lan Z, Wang J, Du Y, Zhang S. Zn/Sr dual ions-collagen co-assembly hydroxyapatite enhances bone regeneration through procedural osteo-immunomodulation and osteogenesis. Bioact Mater 2021; 10:195-206. [PMID: 34901539 PMCID: PMC8636740 DOI: 10.1016/j.bioactmat.2021.09.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/21/2021] [Accepted: 09/07/2021] [Indexed: 01/07/2023] Open
Abstract
The immune microenvironment induced by biomaterials played vital roles in bone regeneration. Hydroxyapatite (HA) and its ion-substituted derivates represent a large class of core inorganic materials for bone tissue engineering. Although ion substitution was proved to be a potent way to grant HA more biological functions, few studies focused on the immunomodulatory properties of ion-doped HA. Herein, to explore the potential osteoimmunomodulatory effects of ion-doped HA, zinc and strontium co-assembled into HA through a collagen template biomimetic way (ZnSr-Col-HA) was successfully achieved. It was found that ZnSr-Col-HA could induce a favorable osteo-immune microenvironment by stimulating macrophages. Furthermore, ZnSr-Col-HA demonstrated a procedural promoting effect on osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) in vitro. Specifically, the osteo-immune microenvironment acted as a dominant factor in promoting osteogenic gene expressions at the early stage through OSM signal pathway. Whereas the direct stimulating effects on BMSCs by Zn2+/Sr2+ were more effectively at the later stage with Nfatc1/Maf and Wnt signals activated. In vivo study confirmed strong promoting effects of ZnSr-Col-HA on critical-sized cranial defect repair. The current study indicated that such a combined biomaterial design philosophy of dual ion-doping and biomimetic molecular co-assembly to endow HA applicable osteoimmunomodulatory characteristics might bring up a new cutting-edge concept for bone regeneration study. Zn/Sr dual ions-collagen co-assembly hydroxyapatite (ZnSr-Col-HA) was achieved via a molecular template biomimetic way. A procedural promoting effect of ZnSr-Col-HA on osteogenic differentiation of BMSCs was firstly found. A novel material design philosophy was proposed for dual ions-doped biomimetic HA with osteoimmunomodulatory properties.
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Affiliation(s)
- Zhenyu Zhong
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaodan Wu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yifan Wang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Mengdie Li
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yan Li
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - XuLong Liu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xin Zhang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Ziyang Lan
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Jianglin Wang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.,Institute of Regulatory Science for Medical Devices, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yingying Du
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.,Institute of Regulatory Science for Medical Devices, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shengmin Zhang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.,Institute of Regulatory Science for Medical Devices, Huazhong University of Science and Technology, Wuhan, 430074, China
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10
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Arbenin AY, Zemtsova EG, Orekhov EV, Sokolova DN, Baburova PI, Petrov AA, Gaǐshun VE, Smirnov VM. Features of Fabrication of Titanium Dioxide Based Coatings for Non-Lithographic Template Electrochemical Synthesis of Micron Metal Particle Arrays. Gels 2021; 7:gels7040202. [PMID: 34842685 PMCID: PMC8628743 DOI: 10.3390/gels7040202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 12/05/2022] Open
Abstract
This work is devoted to the development of non-lithographic template methods of synthesis. These methods have a significant advantage in terms of structure formation: there is no need to design and produce masks, which greatly simplifies the process, and more of them can work with nonplanar substrates. The purpose of this study was to reveal the conditions for the synthesis of titanium dioxide xerogel films of different topologies as well as to develop a technique for non-lithographic template electrochemical synthesis of micron metal particles arrays and to study the structure of the resulting coatings. The films were deposited on the surface of substrates via dip coating. Specific topology of the films was achieved by template sol-gel synthesis. Their structures were analyzed by SEM and XRD. Template synthesis of metal micro particles were realized by pulsed electrochemical deposition of metals into the perforations of xerogel films. Obtained materials were analyzed by SEM and XRD; the element distribution on the surface was determined by the EDS detector of SEM. Based on the analysis results, we suggest the mechanisms of formation of the xerogel topology and proved the efficiency of pulsed electrodeposition for template synthesis of micron particles arrays.
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Affiliation(s)
- Andrey Yu Arbenin
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
- Correspondence:
| | - Elena G. Zemtsova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Evgeniy V. Orekhov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Daria N. Sokolova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Polina I. Baburova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Alexey A. Petrov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Vladimir E. Gaǐshun
- Francisk Skarina Gomel State University, 104 Sovetskaya Str., 246019 Gomel, Belarus;
| | - Vladimir M. Smirnov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
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11
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Zhao L, Sun J, Zhang C, Chen C, Chen Y, Zheng B, Pan H, Shao C, Jin B, Tang R, Gu X. Effect of aspartic acid on the crystallization kinetics of ACP and dentin remineralization. J Mech Behav Biomed Mater 2020; 115:104226. [PMID: 33302092 DOI: 10.1016/j.jmbbm.2020.104226] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 12/14/2022]
Abstract
Type I collagen and non-collagen proteins are the main organic components of dentin. This study aimed to investigate the biomimetic remineralization of demineralized dentin by aspartic acid (Asp), which is abundant in non-collagenous proteins (NCPs). Asp was added to a mineralizing solution containing polyacrylic acid (PAA) to explore the mechanism of Asp regulating the pure amorphous calcium phosphate (ACP) phase transition process. The remineralization process and superstructure of the remineralized layer of demineralized dentin were evaluated and analyzed by transmission electron microscope (TEM) and scanning electron microscope (SEM), and the biological stability of the remineralized layer was investigated by collagenase degradation experiment. It demonstrated that Asp promoted the crystallization kinetics of PAA-stabilized amorphous calcium phosphate to hydroxyapatite (HAP), and shortened the remineralization time of demineralized dentin from 7 days to 2 days. The newly formed remineralized dentin had similar morphology and biological stability to the natural dentin layer. The presence of a large number of Asp residues in NCPs promoted the phase transformation of ACP, and further revealed the mechanism of action of NCPs in dentin biomineralization. This experiment also showed that Asp promoted the biomimetic remineralization of dentin; the morphology and hierarchical structure of remineralized layer was similar to that of natural teeth, and had good biological properties.
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Affiliation(s)
- Luyi Zhao
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China
| | - Jian Sun
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, PR China
| | - Ce Zhang
- Department of Plastic and Reconstructive Surgery, Zhejiang Provincial People's Hospital, Hangzhou, PR China
| | - Chaoqun Chen
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, PR China
| | - Yi Chen
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China
| | - Bo Zheng
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, China
| | - Haihua Pan
- Centre for Biopathways and Biomaterials and Department of Chemistry, Zhejiang University, Hangzhou, PR China
| | - Changyu Shao
- Centre for Biopathways and Biomaterials and Department of Chemistry, Zhejiang University, Hangzhou, PR China
| | - Biao Jin
- Centre for Biopathways and Biomaterials and Department of Chemistry, Zhejiang University, Hangzhou, PR China
| | - Ruikang Tang
- Centre for Biopathways and Biomaterials and Department of Chemistry, Zhejiang University, Hangzhou, PR China
| | - Xinhua Gu
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, PR China.
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12
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Liu H, Du Y, Yang G, Hu X, Wang L, Liu B, Wang J, Zhang S. Delivering Proangiogenic Factors from 3D-Printed Polycaprolactone Scaffolds for Vascularized Bone Regeneration. Adv Healthc Mater 2020; 9:e2000727. [PMID: 32743958 DOI: 10.1002/adhm.202000727] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/10/2020] [Indexed: 01/04/2023]
Abstract
Natural bone is a highly vascularized tissue that relies on the vasculature for blood and nutrients supply to maintain skeletal integrity. Inadequacy of neovascularization may compromise the tissue ingrowth to the implanted scaffolds, and eventually results in failure for the repair. To tackle this issue and enhance self-vascularized bone regeneration, herein a 3D biomimetic selective lasersintering (SLS) derived scaffold, with an angiogenic growth factor immobilized on its surface, that can be released in a controlled manner is proposed. To this end, a porous polycaprolactone/hydroxyapatite (PCL/HA) scaffold is prepared via the SLS technique, which is further modified with vascular endothelial growth factor (VEGF) by coprecipitation with apatite. The resultant scaffold (PCL/HA/VEGF) has an excellent cytocompatibility, and subcutaneous implantation experiment shows that the VEGF-loaded scaffold significantly enhances the blood vessel formation compared with the VEGF-free control. It is further demonstrated that the PCL/HA/VEGF scaffold is able to enhance the in vivo bone regeneration in a rat cranial defect model. Taken together, the current study provides not only a feasible and promising scaffold candidate to enhance the vascularized bone regeneration, but also a general strategy to overcome the inadequate vascularization issue for the repair of other tissue and organs.
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Affiliation(s)
- Haoming Liu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yingying Du
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Gaojie Yang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xixi Hu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Lin Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Bin Liu
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing, 100037, China
| | - Jianglin Wang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shengmin Zhang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
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13
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Contemporary restorative ion-releasing materials: current status, interfacial properties and operative approaches. Br Dent J 2020; 229:450-458. [PMID: 33037365 DOI: 10.1038/s41415-020-2169-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 05/06/2020] [Indexed: 02/08/2023]
Abstract
Minimally invasive (MI) concepts in restorative dentistry in the year 2020 request from the practitioner not only a scientifically supported rationale for carious tissue removal/excavation and defect-oriented, biological cavity preparation, but also a deep understanding of how to ensure a biomechanically stable and durable restoration in different clinical situations by applying different restorative options. Bio-interactive materials play an increasingly relevant role, as they not only replace diseased or lost tissue, but also optimise tissue mineral recovery (among other properties) when used in restorative and preventive dentistry. Indeed, this is of certain interest in MI restorative dentistry, especially in those cases where gap formation jeopardises the integrity of the margins along resin composite restorations, causing penetration of bacteria and eventually promoting the formation of secondary caries. Recently, the interest in whether ion-releasing materials may reduce such biofilm penetration into margin gaps and reduce such a risk for development and propagation of secondary caries is growing significantly among clinicians and scientists. The aim of this article was to explore mechanisms involved in the process that allow mineral deposition at the interface between such materials and dentine, and to describe how conventional 'bioactive' restorative materials currently available on the market may benefit treatments in MI dentistry.
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14
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Two-in-one strategy: a remineralizing and anti-adhesive coating against demineralized enamel. Int J Oral Sci 2020; 12:27. [PMID: 32994399 PMCID: PMC7524769 DOI: 10.1038/s41368-020-00097-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 02/05/2023] Open
Abstract
Tooth enamel is prone to be attacked by injurious factors, leading to a de/remineralization imbalance. To repair demineralized enamel and prevent pulp inflammation caused by biofilm accumulation, measures are needed to promote remineralization and inhibit bacterial adhesion on the tooth surface. An innovative material, poly (aspartic acid)-polyethylene glycol (PASP-PEG), was designed and synthesized to construct a mineralizing and anti-adhesive surface that could be applied to repair demineralized enamel. A cytotoxicity assay revealed the low cytotoxicity of synthesized PASP-PEG. Adsorption results demonstrated that PASP-PEG possesses a high binding affinity to the hydroxyapatite (HA)/tooth surface. In vitro experiments and scanning electron microscopy (SEM) demonstrated a strong capacity of PASP-PEG to induce in situ remineralization and direct the oriented growth of apatite nanocrystals. Energy dispersive X-ray spectroscopy (EDS), X-ray diffraction analysis (XRD) and Vickers hardness tests demonstrated that minerals induced by PASP-PEG were consistent with healthy enamel in Ca/P ratio, crystal form and surface micro-hardness. Contact angle tests and bacterial adhesion experiments demonstrated that PASP-PEG yielded a strong anti-adhesive effect. In summary, PASP-PEG could achieve dual effects for enamel repair and anti-adhesion of bacteria, thereby widening its application in enamel repair.
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15
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Biomineralization eliminating marine organic colloids (MOCs) during seawater desalination: Mechanism and efficiency. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107705] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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16
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Wang Y, Morsali R, Dai Z, Minary-Jolandan M, Qian D. Computational Nanomechanics of Noncollagenous Interfibrillar Interface in Bone. ACS APPLIED MATERIALS & INTERFACES 2020; 12:25363-25373. [PMID: 32407068 DOI: 10.1021/acsami.0c01613] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The noncollagenous interfibrillar interface in bone provides the critical function of transferring loads among collagen fibrils and their bundles, with adhesive mechanisms at this site thus significantly contributing to the mechanical properties of bone. Motivated by the experimental observations and hypotheses, a computational study is presented to elucidate the critical roles of two major proteins at the nanoscale interfibrillar interface, that is, osteopontin (OPN) and osteocalcin (OC) in bone. This study reveals the extremely high interfacial toughness of the OPN/OC composite. The previously proposed hypothesis of sacrificial bonds in the extracellular organic matrix is tested, and the remarkable mechanical properties of the nanoscale bone interface are attributed to the collaborative interactions between the OPN and OC proteins.
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Affiliation(s)
- Yang Wang
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Reza Morsali
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Zhengwei Dai
- College of Material and Textile Engineering, Jiaxing University, Jiaxing 314001, People's Republic of China
| | - Majid Minary-Jolandan
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Dong Qian
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
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17
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Platelet-inspired therapeutics: current status, limitations, clinical implications, and future potential. Drug Deliv Transl Res 2020; 11:24-48. [PMID: 32323161 DOI: 10.1007/s13346-020-00751-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Recent research has been successful in demonstrating the importance of the addition of platelets to the field of cell-mediated therapeutics, by making use of different platelet forms to design modalities able to positively impact a wide range of diseases. A key obstacle hindering the success of conventional therapeutic interventions is their inability to produce targeted treatment, resulting in a number of systemic side effects and a longer duration for the onset of action to occur. An additional challenge facing current popular therapeutic interventions is biocompatibility of the system, resulting in the decline of patient compliance to treatment. In an attempt to address these challenges, the past few decades have been witness to the discovery and innovation of precision therapy, in order to achieve targeted treatment for an array of conditions, thereby superseding alternative mechanisms of treatment. Platelet-mediated therapeutics, as well as employing platelets as drug delivery vehicles, are key components in advancing precision therapy within research and in clinical settings. This novel approach is designed with the objective that the platelets retain their original structure and functions within the body, thereby mitigating biocompatibility challenges. In this article, we review the current significant impact that the addition of platelet-inspired systems has made on the field of therapeutics; explore certain limitations of each system, together with ideas on how to overcome them; and discuss the clinical implications and future potential of platelet-inspired therapeutics. Graphical abstract.
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18
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Evaluation of BMP-2 and VEGF loaded 3D printed hydroxyapatite composite scaffolds with enhanced osteogenic capacity in vitro and in vivo. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110893. [PMID: 32409051 DOI: 10.1016/j.msec.2020.110893] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 03/02/2020] [Accepted: 03/20/2020] [Indexed: 11/22/2022]
Abstract
Large-sized bone defect repair is a challenging task in orthopedic surgery. Porous scaffolds with controlled release of growth factors have been investigated for many years. In this study, a hydroxyapatite composite scaffold was prepared by 3D printing at low temperature and coating with layer-by-layer (LBL) assembly. Bone morphogenic protein-2 (BMP-2) and vascular endothelial growth factors (VEGF) were loaded into the composite scaffolds. The release of dual growth factors was analyzed in vitro. The cell growth and osteogenic differentiation were assessed by culturing MC3T3-E1 cells onto the scaffolds. In an established rabbit model of critical-sized calvarial defect (15 mm in diameter), the osteogenic and angiogenic properties after implantation of scaffolds were evaluated by micro-computed tomography (micro-CT) and stained sections. Our results showed that the scaffolds possessed well-designed porous structure and could release two growth factors in a sustained way. The micro-CT analysis showed that the scaffolds with BMP-2/VEGF could accelerate new bone formation. Findings of immunochemical staining of collagen type I and lectin indicated that better osteogenic and angiogenic properties induced by BMP-2 and VEGF. These results suggested that the novel composite scaffolds combined with BMP-2/VEGF had both osteogenic and angiogenic abilities which could enhance new bone formation with good quality. Thus, the combination of 3D printed scaffolds loaded with BMP-2/VEGF might provide a potential solution for bone repair and regeneration in clinical applications.
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19
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Cui LY, Cheng SC, Liang LX, Zhang JC, Li SQ, Wang ZL, Zeng RC. In vitro corrosion resistance of layer-by-layer assembled polyacrylic acid multilayers induced Ca-P coating on magnesium alloy AZ31. Bioact Mater 2020; 5:153-163. [PMID: 32083229 PMCID: PMC7016252 DOI: 10.1016/j.bioactmat.2020.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/02/2020] [Accepted: 02/02/2020] [Indexed: 12/21/2022] Open
Abstract
Biodegradable magnesium (Mg)-based alloys have aroused great concern owing to their promising characteristics as temporary implants for orthopedic application. But their undesirably rapid corrosion rate under physiological conditions has limited the actual clinical application. This study reports the use of a novel biomimetic polyelectrolyte multilayer template, based on polyvinylpyrrolidone (PVP) and polyacrylic acid (PAA) via layer-by-layer (LbL) assembly, to improve the corrosion resistance of the alloy. Surface characterization techniques (field-emission scanning electron microscopy, Fourier transform infrared (FTIR) spectrophotometer and X-ray diffractometer) confirmed the formation of biomineralized Ca-P coating on AZ31 alloy. Both hydrogen evolution and electrochemical corrosion tests demonstrated that the corrosion protection of the polyelectrolyte-induced Ca-P coating on AZ31 alloy. The formation mechanism of biomineralized Ca-P coating was proposed.
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Affiliation(s)
- Lan-Yue Cui
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Shen-Cong Cheng
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Lu-Xian Liang
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Jing-Chao Zhang
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Shuo-Qi Li
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Zhen-Lin Wang
- College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400065, China
| | - Rong-Chang Zeng
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China
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20
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Facile Bioinspired Preparation of Fluorinase@Fluoridated Hydroxyapatite Nanoflowers for the Biosynthesis of 5′-Fluorodeoxy Adenosine. SUSTAINABILITY 2020. [DOI: 10.3390/su12010431] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
To develop an environmentally friendly biocatalyst for the efficient synthesis of organofluorine compounds, we prepared the enzyme@fluoridated hydroxyapatite nanoflowers (FHAp-NFs) using fluorinase expressed in Escherichia coli Rosetta (DE3) as the biomineralization framework. The obtained fluorinase@FHAp-NFs were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), and FT-IR spectrum and used in the enzymatic synthesis of 5′-fluorodeoxy adenosin with S-adenosyl-L-methionine and fluoride as substrate. At an optimum pH of 7.5, fluorinase confined in the hybrid nanoflowers presents an approximately 2-fold higher synthetic activity than free fluorinase. Additionally, after heating at 30 °C for 8 h, the FHAp-NFs retained approximately 80.0% of the initial activity. However, free enzyme could remain only 48.2% of its initial activity. The results indicate that the fluoride and hybrid nanoflowers efficiently enhance the catalytic activity and thermal stability of fluorinase in the synthesis of 5′-fluorodeoxy adenosine, which gives a green method for producing the fluorinated organic compounds.
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21
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Wang WH, Wang F, Zhao HF, Yan K, Huang CL, Yin Y, Huang Q, Chen ZZ, Zhu WY. Injectable Magnesium-Zinc Alloy Containing Hydrogel Complex for Bone Regeneration. Front Bioeng Biotechnol 2020; 8:617585. [PMID: 33324628 PMCID: PMC7726114 DOI: 10.3389/fbioe.2020.617585] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 11/02/2020] [Indexed: 12/18/2022] Open
Abstract
Gelatin methacryloyl (GelMA) has been widely used in bone engineering. It can also be filled into the calvarial defects with irregular shape. However, lack of osteoinductive capacity limits its potential as a candidate repair material for calvarial defects. In this study, we developed an injectable magnesium-zinc alloy containing hydrogel complex (Mg-IHC), in which the alloy was fabricated in an atomization process and had small sphere, regular shape, and good fluidity. Mg-IHC can be injected and plastically shaped. After cross-linking, it contents the elastic modulus similar to GelMA, and has inner holes suitable for nutrient transportation. Furthermore, Mg-IHC showed promising biocompatibility according to our evaluations of its cell adhesion, growth status, and proliferating activity. The results of alkaline phosphatase (ALP) activity, ALP staining, alizarin red staining, and real-time polymerase chain reaction (PCR) further indicated that Mg-IHC could significantly promote the osteogenic differentiation of MC3T3-E1 cells and upregulate the genetic expression of collagen I (COL-I), osteocalcin (OCN), and runt-related transcription factor 2 (RUNX2). Finally, after applied to a mouse model of critical-sized calvarial defect, Mg-IHC remarkably enhanced bone formation at the defect site. All of these results suggest that Mg-IHC can promote bone regeneration and can be potentially considered as a candidate for calvarial defect repairing.
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Affiliation(s)
- Wei-Hua Wang
- Department of Neurosurgery, The Affiliated Suzhou Science and Technology Town Hospital, Nanjing Medical University, Suzhou, China
- Institute of Clinical Medicine Research, The Affiliated Suzhou Science and Technology Town Hospital, Nanjing Medical University, Suzhou, China
| | - Fei Wang
- Institute of Biomaterials and Medical Devices, Southeast University, Suzhou, China
| | - Hai-Feng Zhao
- Department of Pathology, The Affiliated Suzhou Science and Technology Town Hospital, Nanjing Medical University, Suzhou, China
| | - Ke Yan
- Department of Neurosurgery, The Affiliated Suzhou Science and Technology Town Hospital, Nanjing Medical University, Suzhou, China
| | - Cui-Ling Huang
- Department of Neurology, The Second People’s Hospital of Longgang District, Shenzhen, China
| | - Yin Yin
- Laboratory Animal Center, Soochow University, Suzhou, China
| | - Qiang Huang
- Department of Neurosurgery, The Second Affiliated Hospital, Soochow University, Suzhou, China
| | - Zao-Zao Chen
- Institute of Biomaterials and Medical Devices, Southeast University, Suzhou, China
- School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
- *Correspondence: Zao-Zao Chen,
| | - Wen-Yu Zhu
- Department of Neurosurgery, The Affiliated Suzhou Science and Technology Town Hospital, Nanjing Medical University, Suzhou, China
- Institute of Clinical Medicine Research, The Affiliated Suzhou Science and Technology Town Hospital, Nanjing Medical University, Suzhou, China
- Wen-Yu Zhu,
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22
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Xu X, Chen X, Li J. Natural protein bioinspired materials for regeneration of hard tissues. J Mater Chem B 2020; 8:2199-2215. [DOI: 10.1039/d0tb00139b] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This review describes the protein bioinspired materials for the repair of hard tissues such as enamel, dentin and bone.
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Affiliation(s)
- Xinyuan Xu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Xingyu Chen
- College of Medicine
- Southwest Jiaotong University
- Chengdu 610003
- China
| | - Jianshu Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
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23
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Du Y, Guo JL, Wang J, Mikos AG, Zhang S. Hierarchically designed bone scaffolds: From internal cues to external stimuli. Biomaterials 2019; 218:119334. [PMID: 31306826 PMCID: PMC6663598 DOI: 10.1016/j.biomaterials.2019.119334] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/19/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023]
Abstract
Bone tissue engineering utilizes three critical elements - cells, scaffolds, and bioactive factors - to recapitulate the bone tissue microenvironment, inducing the formation of new bone. Recent advances in materials development have enabled the production of scaffolds that more effectively mimic the hierarchical features of bone matrix, ranging from molecular composition to nano/micro-scale biochemical and physical features. This review summarizes recent advances within the field in utilizing these features of native bone to guide the hierarchical design of materials and scaffolds. Biomimetic strategies discussed in this review cover several levels of hierarchical design, including the development of element-doped compositions of bioceramics, the usage of molecular templates for in vitro biomineralization at the nanoscale, the fabrication of biomimetic scaffold architecture at the micro- and nanoscale, and the application of external physical stimuli at the macroscale to regulate bone growth. Developments at each level are discussed with an emphasis on their in vitro and in vivo outcomes in promoting osteogenic tissue development. Ultimately, these hierarchically designed scaffolds can complement or even replace the usage of cells and biological elements, which present clinical and regulatory barriers to translation. As the field progresses ever closer to clinical translation, the creation of viable therapies will thus benefit from further development of hierarchically designed materials and scaffolds.
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Affiliation(s)
- Yingying Du
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, PR China; Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Jason L Guo
- Department of Bioengineering, Rice University, P.O. Box 1892, MS-142, Houston, TX 77251-1892, USA
| | - Jianglin Wang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, PR China; Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, P.O. Box 1892, MS-142, Houston, TX 77251-1892, USA.
| | - Shengmin Zhang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, PR China; Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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24
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Chen S, Shi Y, Zhang X, Ma J. Biomimetic synthesis of Mg‐substituted hydroxyapatite nanocomposites and three‐dimensional printing of composite scaffolds for bone regeneration. J Biomed Mater Res A 2019; 107:2512-2521. [DOI: 10.1002/jbm.a.36757] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 07/11/2019] [Accepted: 07/12/2019] [Indexed: 02/01/2023]
Affiliation(s)
- Shangsi Chen
- Advanced Biomaterials and Tissue Engineering CenterHuazhong University of Science and Technology Wuhan China
| | - Yufei Shi
- Advanced Biomaterials and Tissue Engineering CenterHuazhong University of Science and Technology Wuhan China
| | - Xin Zhang
- Advanced Biomaterials and Tissue Engineering CenterHuazhong University of Science and Technology Wuhan China
| | - Jun Ma
- Advanced Biomaterials and Tissue Engineering CenterHuazhong University of Science and Technology Wuhan China
- Department of Biomedical Engineering, College of Life Science and TechnologyHuazhong University of Science and Technology Wuhan China
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25
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He X, Tang K, Li X, Wang F, Liu J, Zou F, Yang M, Li M. A porous collagen-carboxymethyl cellulose/hydroxyapatite composite for bone tissue engineering by bi-molecular template method. Int J Biol Macromol 2019; 137:45-53. [PMID: 31220495 DOI: 10.1016/j.ijbiomac.2019.06.098] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 12/17/2022]
Abstract
Inspired by the mechanism of bone formation, a porous collagen-carboxymethyl cellulose/hydroxyapatite (Col-CMC/HA) composite was designed and fabricated using a biomimetic template of Col and CMC protein-polysaccharide bi-molecules. The morphology, composition and physical properties of Col-CMC/HA composites were characterized systematically. It was found that the nano-HA homogenously distributed on the surface of Col-CMC bi-templates while the composite presented 3D porous structure with pore size from 100 μm to 300 μm. The porosities of composites were located at the range of 71%-85%. Besides, the compressive strength of composites was highly depended on the ratio of Col to CMC in the organic template. The optimized composite in respect to physical properties showed a compressive strength as high as 7.06 MPa, quite close to that of natural bone. The high relative growth rate of wild-type mouse embryonic fibroblasts cells was found for the composite, indicating a good biocompatibility. The organic-inorganic composite also behaved good in collagenase resistance and could be biodegraded in 8 weeks, with about 50% of initial weight left at the ratio of Col to CMC of 1:9. The results demonstrated that the Col-CMC/HA composite by bi-molecular template method was a rational and safe method to prepare biomaterials with tunable properties.
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Affiliation(s)
- Xichan He
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Keyong Tang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China.
| | - Xiumin Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Fang Wang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Jie Liu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Fangfang Zou
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Mengyuan Yang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Meixuan Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
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Chen S, Shi Y, Luo Y, Ma J. Layer-by-layer coated porous 3D printed hydroxyapatite composite scaffolds for controlled drug delivery. Colloids Surf B Biointerfaces 2019; 179:121-127. [PMID: 30954012 DOI: 10.1016/j.colsurfb.2019.03.063] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 03/09/2019] [Accepted: 03/27/2019] [Indexed: 01/07/2023]
Abstract
Interconnected porous scaffolds are widely used in the applications of tissue repair and regeneration. Sustained local delivery of drugs and growth factors around the implanted scaffolds could accelerate the growth of cells and contribute to the regeneration of damaged tissues. In this study, porous hydroxyapatite composite scaffolds were prepared through 3D bio-printing for bone tissue engineering and were subsequently coated with chitosan and sodium hyaluronate by layer-by-layer (LBL) deposition. It was found that the LBL coating on the porous scaffolds could reduce the swelling ratio of scaffolds in size and increase the compressive strength by about 70%. The degradation rate of the scaffolds slowed down due to the LBL coating. Rhodamine B (RHB) and bovine serum albumin (BSA) were chosen as model drugs in order to understand the loading and release behaviors of the scaffolds. Small RHB molecules could penetrate deep into the LBL coated scaffolds and released a little slower than that without coating. Meanwhile, large BSA molecules showed faster release rate compared to that without coating. In addition, there was no significant cytotoxicity effect of these composite scaffolds towards MC-3T3E1 cells and the scaffolds provided proper conditions for cell adhesion and proliferation, indicating that the printed hydroxyapatite composite scaffolds exhibit a great potential in hard tissue engineering as a sustained delivery system.
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Affiliation(s)
- Shangsi Chen
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yufei Shi
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yun Luo
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jun Ma
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China; Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
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27
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Götz W, Tobiasch E, Witzleben S, Schulze M. Effects of Silicon Compounds on Biomineralization, Osteogenesis, and Hard Tissue Formation. Pharmaceutics 2019; 11:E117. [PMID: 30871062 PMCID: PMC6471146 DOI: 10.3390/pharmaceutics11030117] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/25/2019] [Accepted: 03/03/2019] [Indexed: 12/19/2022] Open
Abstract
Bioinspired stem cell-based hard tissue engineering includes numerous aspects: The synthesis and fabrication of appropriate scaffold materials, their analytical characterization, and guided osteogenesis using the sustained release of osteoinducing and/or osteoconducting drugs for mesenchymal stem cell differentiation, growth, and proliferation. Here, the effect of silicon- and silicate-containing materials on osteogenesis at the molecular level has been a particular focus within the last decade. This review summarizes recently published scientific results, including material developments and analysis, with a special focus on silicon hybrid bone composites. First, the sources, bioavailability, and functions of silicon on various tissues are discussed. The second focus is on the effects of calcium-silicate biomineralization and corresponding analytical methods in investigating osteogenesis and bone formation. Finally, recent developments in the manufacturing of Si-containing scaffolds are discussed, including in vitro and in vivo studies, as well as recently filed patents that focus on the influence of silicon on hard tissue formation.
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Affiliation(s)
- Werner Götz
- Department of Orthodontics, Oral Biology Laboratory, School of Dentistry, Rheinische Wilhelms University of Bonn, Welschnonnenstr. 17, D-53111 Bonn, Germany.
| | - Edda Tobiasch
- Department of Natural Sciences, Bonn-Rhine-Sieg University of Applied Sciences, D-53359 Rheinbach, Germany.
| | - Steffen Witzleben
- Department of Natural Sciences, Bonn-Rhine-Sieg University of Applied Sciences, D-53359 Rheinbach, Germany.
| | - Margit Schulze
- Department of Natural Sciences, Bonn-Rhine-Sieg University of Applied Sciences, D-53359 Rheinbach, Germany.
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Zheng B, Mao C, Gu T, Pan H, Shao C, Sun J, Chen C, Tang R, Gu X. Phosphorylated chitosan to promote biomimetic mineralization of type I collagen as a strategy for dentin repair and bone tissue engineering. NEW J CHEM 2019. [DOI: 10.1039/c8nj04889d] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This novel biomimetic mineralization technique provides an efficient method to produce an advanced mineralized matrix.
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Affiliation(s)
- Bo Zheng
- Zhejiang Stomatological Hospital
- Hangzhou
- P. R. China
| | - Caiyun Mao
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University
- P. R. China
| | - Tianyi Gu
- School of Stomatology, Zhejiang Chinese Medical University
- P. R. China
| | - Haihua Pan
- Centre for Biopathways and Biomaterials, Department of Chemistry, Zhejiang University
- P. R. China
| | - Changyu Shao
- Centre for Biopathways and Biomaterials, Department of Chemistry, Zhejiang University
- P. R. China
| | - Jian Sun
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University
- P. R. China
| | - Chaoqun Chen
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University
- P. R. China
| | - Ruikang Tang
- Centre for Biopathways and Biomaterials, Department of Chemistry, Zhejiang University
- P. R. China
| | - Xinhua Gu
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University
- P. R. China
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Luo Y, Chen S, Shi Y, Ma J. 3D printing of strontium-doped hydroxyapatite based composite scaffolds for repairing critical-sized rabbit calvarial defects. ACTA ACUST UNITED AC 2018; 13:065004. [PMID: 30091422 DOI: 10.1088/1748-605x/aad923] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this study, strontium substituted hydroxyapatite (Sr-HAP) was synthesized using collagen type I and citrate as bi-templates and the obtained nanoparticles with high similarity to natural bone minerals were made into composite scaffolds with interconnected porous structure using a three-dimensional (3D) printing technique. A calcium deficient structure of HAP phase was caused by doping Sr which was verified by Fourier transform infrared, x-ray diffractometer, scanning electron microscopy and transmission electron microscopy. The Sr/(Sr + Ca) molar ratio in Sr-HAP nanoparticles was 5.8% estimated by EDX. Furthermore, both 3D printed scaffolds made of Sr-HAP and HAP had uniform porous structure and porosity of about 60%. Cell culturing indicated that MC3T3-E1 cells could adhere on the surface of the scaffolds and the strontium substitution could enhance cell adhesion, proliferation and alkaline phosphatase activity. The printed composite scaffolds were used to repair critical-sized rabbit calvarial defects with a diameter of 15 mm. The results showed that the Sr-HAP scaffolds had better osteogenic capability and stimulated more new bone formation within 12 weeks. It was suggested that these printed Sr-HAP composite scaffolds possessed high potential as candidates in the application of bone augmentation and regeneration.
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Affiliation(s)
- Yun Luo
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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Zima A. Hydroxyapatite-chitosan based bioactive hybrid biomaterials with improved mechanical strength. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 193:175-184. [PMID: 29241052 DOI: 10.1016/j.saa.2017.12.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/24/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
Composites consisting of hydroxyapatite (HA) and chitosan (CTS) have recently been intensively studied. In this work, a novel inorganic-organic (I/O) HA/CTS materials in the form of granules were prepared through a simple solution-based chemical method. During the synthesis of these hybrids, the electrostatic complexes between positively charged, protonated amine groups of chitosan and the negative phosphate species (HPO42- and H2PO4-) were formed. Our biocomposites belong to the class I of hybrids, which was confirmed by FTIR studies. XRD analysis revealed that the obtained materials consisted of hydroxyapatite as the only crystalline phase. Homogeneous dispersion of the components in HA/CTS composites was confirmed. The use of 17wt% and 23wt% of chitosan resulted in approximately 12-fold and 16-fold increase in the compressive strength of HA/CTS as compared to the non-modified HA material. During incubation of the studied materials in SBF, pH of the solution remained close to the physiological one. Formation of apatite layer on their surfaces indicated bioactive nature of the developed biomaterials.
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Affiliation(s)
- A Zima
- Faculty of Materials Science and Ceramics, AGH-UST University of Science and Technology, Krakow, Poland.
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31
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Wu P, Chen H, Jin R, Weng T, Ho JK, You C, Zhang L, Wang X, Han C. Non-viral gene delivery systems for tissue repair and regeneration. J Transl Med 2018; 16:29. [PMID: 29448962 PMCID: PMC5815227 DOI: 10.1186/s12967-018-1402-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 02/07/2018] [Indexed: 12/11/2022] Open
Abstract
Critical tissue defects frequently result from trauma, burns, chronic wounds and/or surgery. The ideal treatment for such tissue loss is autografting, but donor sites are often limited. Tissue engineering (TE) is an inspiring alternative for tissue repair and regeneration (TRR). One of the current state-of-the-art methods for TRR is gene therapy. Non-viral gene delivery systems (nVGDS) have great potential for TE and have several advantages over viral delivery including lower immunogenicity and toxicity, better cell specificity, better modifiability, and higher productivity. However, there is no ideal nVGDS for TRR, hence, there is widespread research to improve their properties. This review introduces the basic principles and key aspects of commonly-used nVGDSs. We focus on recent advances in their applications, current challenges, and future directions.
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Affiliation(s)
- Pan Wu
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Haojiao Chen
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Ronghua Jin
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Tingting Weng
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Jon Kee Ho
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Chuangang You
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Liping Zhang
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | - Xingang Wang
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China.
| | - Chunmao Han
- Department of Burns & Wound Care Center, Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China.
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Zhong Z, Ma J. Fabrication, characterization, and in vitro study of zinc substituted hydroxyapatite/silk fibroin composite coatings on titanium for biomedical applications. J Biomater Appl 2017; 32:399-409. [PMID: 28747081 DOI: 10.1177/0885328217723501] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Zinc substituted hydroxyapatite/silk fibroin composite coatings were deposited on titanium substrates at room temperature by electrophoretic deposition. Microscopic characterization of the synthesized composite nanoparticles revealed that the particle size ranged 50-200 nm, which increased a little after zinc substitution. The obtained coatings maintained the phase of hydroxyapatite and they could induce fast apatite formation in simulated body fluid, indicating high bone activity. The cell culturing results showed that the biomimetic hydroxyapatite coatings could regulate adhesion, spreading, and proliferation of osteoblastic cells. Furthermore, the biological behavior of the zinc substituted hydroxyapatite coatings was found to be better than the bare titanium without coatings and hydroxyapatite coatings without zinc, increasing MC3T1-E1 cell differentiation in alkaline phosphatase expression.
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Affiliation(s)
- Zhenyu Zhong
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Ma
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
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33
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Ghate NS, Cui H. Mineralized collagen artificial bone repair material products used for fusing the podarthral joints with internal fixation-a case report. Regen Biomater 2017; 4:295-298. [PMID: 29026643 PMCID: PMC5633689 DOI: 10.1093/rb/rbx015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 04/24/2017] [Accepted: 04/28/2017] [Indexed: 11/15/2022] Open
Abstract
In this study, we reported a case with collapse and subluxation of metatarsal-cuneiform joint, navicular-cuneiform joint with subluxed the right first metatarsophalangeal joint. The injured medial column was internally fixed with compression arthrodesis. The fusion site was firmed up with BonGold® Bone Sponge and Bone Putty. The prognosis of fused navicular-cuneiform joint and metatarsal-cuneiform joint were examined by X-ray shortly after surgical operation and followed up 2, 4, 6, 9 and 13 weeks after the surgical operation. The medial column was perfectly fused by compression arthrodesis. These results justified and favored the application of mineralized collagen as an excellent alternative to autograft in fusing the podarthral joints with internal fixation.
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Affiliation(s)
- Nihar S Ghate
- Division of Foot and Ankle Surgery, Indiana Regional Medical Center, Indiana, PA 15701, USA
| | - Helen Cui
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing 100176, China
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Yang G, Liu H, Hu X, Chen Z, Friis TE, Wang J, Xiao Y, Zhang S. Bio-inspired hybrid nanoparticles promote vascularized bone regeneration in a morphology-dependent manner. NANOSCALE 2017; 9:5794-5805. [PMID: 28304060 DOI: 10.1039/c7nr00347a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Current major obstacles for translating the nanoparticle (NP) morphology-related function into therapeutic purposes come from the challenges in understanding the mechanisms that determine cell lineage commitment and constructing a NP-based 3D functional structure, and few studies have successfully demonstrated clear evidence of regulating in vivo tissue regeneration by NP morphology so far. Here, we show that nanoparticle geometry can be harnessed to mediate bone regeneration in a rat cranial defect model. We successfully synthesized hydroxyapatite NPs with well-defined morphologies using a modified liquid-solution-solid (LSS) method. The NPs showed differential effects on stem cell behaviors such as particle uptake, autophagy activation and osteogenic differentiation. By integrating nanoparticles within gelatin, we achieved 3D scaffolds with uniformly-distributed nano-topologies which, can mediate in vivo osteogenesis through stimulation of autophagy, with spherical particles demonstrating the most robust bone formation capacity compared to other NPs. Our current work proposes a morphology-dependent effect of NPs on vascularization and bone formation and provides an innovative and feasible strategy for bone regenerative therapies.
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Affiliation(s)
- Gaojie Yang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, China.
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Crystallisation of hydroxyapatite in phosphorylated poly(vinyl alcohol) as a synthetic route to tough mechanical hybrid materials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:487-493. [DOI: 10.1016/j.msec.2016.09.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 08/15/2016] [Accepted: 09/06/2016] [Indexed: 11/23/2022]
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36
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Li X, Chen T, Hu J, Li S, Zou Q, Li Y, Jiang N, Li H, Li J. Modified surface morphology of a novel Ti–24Nb–4Zr–7.9Sn titanium alloy via anodic oxidation for enhanced interfacial biocompatibility and osseointegration. Colloids Surf B Biointerfaces 2016; 144:265-275. [DOI: 10.1016/j.colsurfb.2016.04.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 03/28/2016] [Accepted: 04/09/2016] [Indexed: 01/15/2023]
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Chen C, Bang S, Cho Y, Lee S, Lee I, Zhang S, Noh I. Research trends in biomimetic medical materials for tissue engineering: 3D bioprinting, surface modification, nano/micro-technology and clinical aspects in tissue engineering of cartilage and bone. Biomater Res 2016; 20:10. [PMID: 27148455 PMCID: PMC4855474 DOI: 10.1186/s40824-016-0057-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 04/07/2016] [Indexed: 11/13/2022] Open
Abstract
This review discusses about biomimetic medical materials for tissue engineering of bone and cartilage, after previous scientific commentary of the invitation-based, Korea-China joint symposium on biomimetic medical materials, which was held in Seoul, Korea, from October 22 to 26, 2015. The contents of this review were evolved from the presentations of that symposium. Four topics of biomimetic medical materials were discussed from different research groups here: 1) 3D bioprinting medical materials, 2) nano/micro-technology, 3) surface modification of biomaterials for their interactions with cells and 4) clinical aspects of biomaterials for cartilage focusing on cells, scaffolds and cytokines.
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Affiliation(s)
- Cen Chen
- />Bio-X Center, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
| | - Sumi Bang
- />Seoul National University of Science and Technology, 232 Gongneung-roNowongu, Seoul, 11811 Republic of Korea
| | - Younghak Cho
- />Department of Mechanical System Design Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 11811 Republic of Korea
| | - Sahnghoon Lee
- />Department of Orthopaedic Surgery, Seoul National University College of Medicine/Seoul National University Hospital, Seoul, 110-799 Republic of Korea
| | - Inseop Lee
- />Bio-X Center, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
- />Institute of Natural Sciences, Yonsei University, Seoul, 03722 Korea
| | - ShengMin Zhang
- />Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Insup Noh
- />Seoul National University of Science and Technology, 232 Gongneung-roNowongu, Seoul, 11811 Republic of Korea
- />Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811 Republic of Korea
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Qin J, Zhong Z, Ma J. Biomimetic synthesis of hybrid hydroxyapatite nanoparticles using nanogel template for controlled release of bovine serum albumin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:377-83. [PMID: 26952436 DOI: 10.1016/j.msec.2016.01.088] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 01/15/2016] [Accepted: 01/29/2016] [Indexed: 11/15/2022]
Abstract
A biomimetic method was used to prepare hybrid hydroxyapatite (HAP) nanoparticles with chitosan/polyacrylic acid (CS-PAA) nanogel. The morphology, structure, crystallinity, thermal properties and biocompatibility of the obtained hybrid nanogel-HAP nanoparticles have been characterized. In addition, bovine serum albumin (BSA) was used as a model protein to study the loading and release behaviors of the hybrid nanogel-HAP nanoparticles. The results indicated that the obtained HAP nanoparticles were agglomerated and the nanogel could regulate the formation of HAP. When the nanogel concentration decreased, different HAP crystal shapes and agglomerate structures were obtained. The loading amount of BSA reached 67.6 mg/g for the hybrid nanoparticles when the mineral content was 90.4%, which decreased when the nanogel concentration increased. The release profile of BSA was sustained in neutral buffer. Meanwhile, an initial burst release was found at pH 4.5 due to the desorption of BSA from the surface, followed by a slow release. The hemolysis percentage of the hybrid nanoparticles was close to the negative control, and these particles were non-toxic to bone marrow stromal stem cells. The results suggest that these hybrid nanogel-HAP nanoparticles are promising candidate materials for biocompatible drug delivery systems.
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Affiliation(s)
- Jinli Qin
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zhenyu Zhong
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Jun Ma
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, PR China; Department of Biomedical Engineering, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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Abstract
Biomaterials have played an increasingly prominent role in the success of biomedical devices and in the development of tissue engineering, which seeks to unlock the regenerative potential innate to human tissues/organs in a state of deterioration and to restore or reestablish normal bodily function. Advances in our understanding of regenerative biomaterials and their roles in new tissue formation can potentially open a new frontier in the fast-growing field of regenerative medicine. Taking inspiration from the role and multi-component construction of native extracellular matrices (ECMs) for cell accommodation, the synthetic biomaterials produced today routinely incorporate biologically active components to define an artificial in vivo milieu with complex and dynamic interactions that foster and regulate stem cells, similar to the events occurring in a natural cellular microenvironment. The range and degree of biomaterial sophistication have also dramatically increased as more knowledge has accumulated through materials science, matrix biology and tissue engineering. However, achieving clinical translation and commercial success requires regenerative biomaterials to be not only efficacious and safe but also cost-effective and convenient for use and production. Utilizing biomaterials of human origin as building blocks for therapeutic purposes has provided a facilitated approach that closely mimics the critical aspects of natural tissue with regard to its physical and chemical properties for the orchestration of wound healing and tissue regeneration. In addition to directly using tissue transfers and transplants for repair, new applications of human-derived biomaterials are now focusing on the use of naturally occurring biomacromolecules, decellularized ECM scaffolds and autologous preparations rich in growth factors/non-expanded stem cells to either target acceleration/magnification of the body's own repair capacity or use nature's paradigms to create new tissues for restoration. In particular, there is increasing interest in separating ECMs into simplified functional domains and/or biopolymeric assemblies so that these components/constituents can be discretely exploited and manipulated for the production of bioscaffolds and new biomimetic biomaterials. Here, following an overview of tissue auto-/allo-transplantation, we discuss the recent trends and advances as well as the challenges and future directions in the evolution and application of human-derived biomaterials for reconstructive surgery and tissue engineering. In particular, we focus on an exploration of the structural, mechanical, biochemical and biological information present in native human tissue for bioengineering applications and to provide inspiration for the design of future biomaterials.
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Feng L, Zhang L, Cui Y, Song TX, Qiu ZY, Wang XM, Tan BS. Clinical evaluations of mineralized collagen in the extraction sites preservation. Regen Biomater 2016; 3:41-8. [PMID: 26815224 PMCID: PMC4723274 DOI: 10.1093/rb/rbv027] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 11/13/2015] [Accepted: 11/16/2015] [Indexed: 11/14/2022] Open
Abstract
The purpose of this study was to explore the different effects between biomimetic mineralized collagen (MC) and ordinary physically blended hydroxyapatite/collagen (HA/Col) composite in evaluating new bone formation and regenerated bone height in human extraction sockets. Thirty-four patients who cannot retain teeth caused by trauma or decay were randomly selected from Department of Stomatology of Dongzhimen Hospital from December 2013 to December 2014. The patients were randomly divided into two groups. After the operation of tooth extraction, 17 patients were implanted with biomimetic MC (MC group), and other 17 patients were implanted with ordinary physically blended nHA/Col composite (nHA/Col group). X-ray positioning projection by auto-photographing was taken to test the distance between the lowest position and the neighboring CEJm-CEJd immediately, 1 month and 3 months after the operation. The height of new bone formation of the MC group was significantly higher than the nHA/Col group. Biomimetic MC showed better clinical outcomes in the bone formation for extraction site preservation and would have broad application prospect in the field of oral and maxillofacial surgeries.
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Affiliation(s)
- Lu Feng
- Department of Stomatology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China;; Beijing Stomatological Hospital, Capital Medical University, Beijing 100050, China
| | - Liang Zhang
- Second Outpatient Department, General Hospital of Beijing Military Region, Beijing 100125, China
| | - Yun Cui
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing 100176, China
| | - Tian-Xi Song
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing 100176, China
| | - Zhi-Ye Qiu
- Beijing Allgens Medical Science and Technology Co., Ltd., Beijing 100176, China;; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Xiu-Mei Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Bao-Sheng Tan
- Beijing Stomatological Hospital, Capital Medical University, Beijing 100050, China
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41
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Xu Z, Shi L, Hu D, Hu B, Yang M, Zhu L. Formation of hierarchical bone-like apatites on silk microfiber templates via biomineralization. RSC Adv 2016. [DOI: 10.1039/c6ra17199k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hierarchical bone-like apatites can be formed on silk microfiber templates and the resulting biocomposites achieved good cytocompatibility.
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Affiliation(s)
- Zongpu Xu
- Institute of Applied Bioresource Research
- College of Animal Sciences
- Zhejiang University
- Hangzhou 310058
- P. R. China
| | - Liyang Shi
- Science for Life Laboratory
- Division of Polymer Chemistry
- Department of Chemistry-Ångström
- Uppsala University
- Uppsala SE 751 21
| | - Doudou Hu
- Institute of Applied Bioresource Research
- College of Animal Sciences
- Zhejiang University
- Hangzhou 310058
- P. R. China
| | - Binhui Hu
- Institute of Applied Bioresource Research
- College of Animal Sciences
- Zhejiang University
- Hangzhou 310058
- P. R. China
| | - Mingying Yang
- Institute of Applied Bioresource Research
- College of Animal Sciences
- Zhejiang University
- Hangzhou 310058
- P. R. China
| | - Liangjun Zhu
- Institute of Applied Bioresource Research
- College of Animal Sciences
- Zhejiang University
- Hangzhou 310058
- P. R. China
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Du Y, Liu H, Shuang J, Wang J, Ma J, Zhang S. Microsphere-based selective laser sintering for building macroporous bone scaffolds with controlled microstructure and excellent biocompatibility. Colloids Surf B Biointerfaces 2015; 135:81-89. [DOI: 10.1016/j.colsurfb.2015.06.074] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/20/2015] [Accepted: 06/26/2015] [Indexed: 12/25/2022]
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Qiu ZY, Cui Y, Tao CS, Zhang ZQ, Tang PF, Mao KY, Wang XM, Cui FZ. Mineralized Collagen: Rationale, Current Status, and Clinical Applications. MATERIALS 2015; 8:4733-4750. [PMID: 28793468 PMCID: PMC5455477 DOI: 10.3390/ma8084733] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 06/29/2015] [Accepted: 07/13/2015] [Indexed: 01/19/2023]
Abstract
This paper presents a review of the rationale for the in vitro mineralization process, preparation methods, and clinical applications of mineralized collagen. The rationale for natural mineralized collagen and the related mineralization process has been investigated for decades. Based on the understanding of natural mineralized collagen and its formation process, many attempts have been made to prepare biomimetic materials that resemble natural mineralized collagen in both composition and structure. To date, a number of bone substitute materials have been developed based on the principles of mineralized collagen, and some of them have been commercialized and approved by regulatory agencies. The clinical outcomes of mineralized collagen are of significance to advance the evaluation and improvement of related medical device products. Some representative clinical cases have been reported, and there are more clinical applications and long-term follow-ups that currently being performed by many research groups.
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Affiliation(s)
- Zhi-Ye Qiu
- School of Materials Science and Engineering, Tsinghua University, Haidian District, Beijing 100084, China.
- Beijing Allgens Medical Science and Technology Co., Ltd., No.1 Disheng East Road, Yizhuang Economic and Technological Development Zone, Beijing 100176, China.
| | - Yun Cui
- Beijing Allgens Medical Science and Technology Co., Ltd., No.1 Disheng East Road, Yizhuang Economic and Technological Development Zone, Beijing 100176, China.
| | - Chun-Sheng Tao
- School of Materials Science and Engineering, Tsinghua University, Haidian District, Beijing 100084, China.
- The 401 Hospital of Chinese People's Liberation Army, No. 22 Minjiang Road, Qingdao 266071, China.
| | - Zi-Qiang Zhang
- Beijing Allgens Medical Science and Technology Co., Ltd., No.1 Disheng East Road, Yizhuang Economic and Technological Development Zone, Beijing 100176, China.
| | - Pei-Fu Tang
- The General Hospital of People's Liberation Army, No. 28 Fuxing Road, Beijing 100853, China.
| | - Ke-Ya Mao
- The General Hospital of People's Liberation Army, No. 28 Fuxing Road, Beijing 100853, China.
| | - Xiu-Mei Wang
- School of Materials Science and Engineering, Tsinghua University, Haidian District, Beijing 100084, China.
| | - Fu-Zhai Cui
- School of Materials Science and Engineering, Tsinghua University, Haidian District, Beijing 100084, China.
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Leijten J, Chai Y, Papantoniou I, Geris L, Schrooten J, Luyten F. Cell based advanced therapeutic medicinal products for bone repair: Keep it simple? Adv Drug Deliv Rev 2015; 84:30-44. [PMID: 25451134 DOI: 10.1016/j.addr.2014.10.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 09/18/2014] [Accepted: 10/20/2014] [Indexed: 02/08/2023]
Abstract
The development of cell based advanced therapeutic medicinal products (ATMPs) for bone repair has been expected to revolutionize the health care system for the clinical treatment of bone defects. Despite this great promise, the clinical outcomes of the few cell based ATMPs that have been translated into clinical treatments have been far from impressive. In part, the clinical outcomes have been hampered because of the simplicity of the first wave of products. In response the field has set-out and amassed a plethora of complexities to alleviate the simplicity induced limitations. Many of these potential second wave products have remained "stuck" in the development pipeline. This is due to a number of reasons including the lack of a regulatory framework that has been evolving in the last years and the shortage of enabling technologies for industrial manufacturing to deal with these novel complexities. In this review, we reflect on the current ATMPs and give special attention to novel approaches that are able to provide complexity to ATMPs in a straightforward manner. Moreover, we discuss the potential tools able to produce or predict 'goldilocks' ATMPs, which are neither too simple nor too complex.
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45
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Shahlori R, Waterhouse GIN, Nelson ARJ, McGillivray DJ. Morphological, chemical and kinetic characterisation of zein protein-induced biomimetic calcium phosphate films. J Mater Chem B 2015; 3:6213-6223. [DOI: 10.1039/c5tb00702j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A zein protein layer was used to mineralize thin films of calcium phosphate at the air–solution interface producing an iridescent mineral film with novel nano-morphology.
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Affiliation(s)
- Rayomand Shahlori
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - Geoffrey I. N. Waterhouse
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - Andrew R. J. Nelson
- Bragg Institute
- Australian Nuclear Science and Technology Organisation
- Australia
| | - Duncan J. McGillivray
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
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Blumenstein NJ, Berson J, Walheim S, Atanasova P, Baier J, Bill J, Schimmel T. Template-controlled mineralization: Determining film granularity and structure by surface functionality patterns. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2015; 6:1763-8. [PMID: 26425428 PMCID: PMC4578336 DOI: 10.3762/bjnano.6.180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 07/31/2015] [Indexed: 05/14/2023]
Abstract
We present a promising first example towards controlling the properties of a self-assembling mineral film by means of the functionality and polarity of a substrate template. In the presented case, a zinc oxide film is deposited by chemical bath deposition on a nearly topography-free template structure composed of a pattern of two self-assembled monolayers with different chemical functionality. We demonstrate the template-modulated morphological properties of the growing film, as the surface functionality dictates the granularity of the growing film. This, in turn, is a key property influencing other film properties such as conductivity, piezoelectric activity and the mechanical properties. A very pronounced contrast is observed between areas with an underlying fluorinated, low energy template surface, showing a much more (almost two orders of magnitude) coarse-grained film with a typical agglomerate size of around 75 nm. In contrast, amino-functionalized surface areas induce the growth of a very smooth, fine-grained surface with a roughness of around 1 nm. The observed influence of the template on the resulting clear contrast in morphology of the growing film could be explained by a contrast in surface adhesion energies and surface diffusion rates of the nanoparticles, which nucleate in solution and subsequently deposit on the functionalized substrate.
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Affiliation(s)
- Nina J Blumenstein
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, D-70569 Stuttgart, Germany
| | - Jonathan Berson
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, D-76344, Germany
- Institute of Applied Physics and Center for Functional Nanostructures, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Strasse 1, D-76131 Karlsruhe, Germany
| | - Stefan Walheim
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, D-76344, Germany
- Institute of Applied Physics and Center for Functional Nanostructures, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Strasse 1, D-76131 Karlsruhe, Germany
| | - Petia Atanasova
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, D-70569 Stuttgart, Germany
| | - Johannes Baier
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, D-70569 Stuttgart, Germany
| | - Joachim Bill
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, D-70569 Stuttgart, Germany
| | - Thomas Schimmel
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, D-76344, Germany
- Institute of Applied Physics and Center for Functional Nanostructures, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Strasse 1, D-76131 Karlsruhe, Germany
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47
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He C, Nie W, Feng W. Engineering of biomimetic nanofibrous matrices for drug delivery and tissue engineering. J Mater Chem B 2014; 2:7828-7848. [PMID: 32262073 DOI: 10.1039/c4tb01464b] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Biomimetic nanofibers have emerged as promising candidates for drug delivery and tissue engineering applications. In this paper, recent advances on the fabrication and application of biomimetic nanofibers as drug carriers and scaffolding materials are reviewed. First, we delineate the three popular nanofiber fabrication techniques including electrospinning, phase separation and molecular self-assembly, covering the principal materials used for different techniques and surface functionalization strategies for nanofibers. Furthermore, we focus our interest on the nanofiber-based delivery strategies and underlying kinetics for growth factors and other bioactive molecules, following which we summarize the recent advances in the development of these nanofibrous matrices for bone, vascular and neural tissue engineering applications. Finally, research challenges and future trends in the related areas are discussed.
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Affiliation(s)
- Chuanglong He
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.
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48
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Freeze-Thawed Hybridized Preparation with Biomimetic Self-Assembly for a Polyvinyl Alcohol/Collagen Hydrogel Created for Meniscus Tissue Engineering. JOURNAL OF BIOMIMETICS BIOMATERIALS AND BIOMEDICAL ENGINEERING 2014. [DOI: 10.4028/www.scientific.net/jbbbe.21.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Freeze-thawed hybridized preparation and the biomimetic self-assembly technique were used to fabricate hydrogel as tissue engineered scaffolds for meniscus tissue. Because of the advantages of both techniques, they were hybridized together as an interesting preparation for hydrogel. Three molecular weights (high, medium, and low) of PVA were prepared in a biomimetic solution before formation into hydrogel by freeze-thawing. The most suitable molecular weight PVA for hydrogel formation was chosen to be mixed with collagen. PVA, PVA/collagen, and collagen were prepared in biomimetic solutions and freeze-thawed into hydrogels. The hydrogels were analyzed and characterized by FTIR, DSC, and SEM. FTIR characterization indicated that high molecular weight PVA formed molecular interaction better than the other molecular weights, and PVA molecules formed molecular interaction with collagen molecules via –OH and C=O groups. DSC characterization showed that the hybridized preparation of freeze-thawing and biomimetic self-assembly kept the characteristics of PVA and collagen. SEM analysis demonstrated that the morphological formation of PVA/collagen was hybridized during freeze-thawing and collagen self-assembly. The morphological structure was organized into a porous network structure. The porous structure showed a rough wall that was formed by the hybridized structure of the crystal domain dispersed in amorphous and collagen self-assembly.
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Kowalczyk T, Hnatuszko-Konka K, Gerszberg A, Kononowicz AK. Elastin-like polypeptides as a promising family of genetically-engineered protein based polymers. World J Microbiol Biotechnol 2014; 30:2141-52. [PMID: 24699809 PMCID: PMC4072924 DOI: 10.1007/s11274-014-1649-5] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 03/27/2014] [Indexed: 01/01/2023]
Abstract
Elastin-like polypeptides (ELP) are artificial, genetically encodable biopolymers, belonging to elastomeric proteins, which are widespread in a wide range of living organisms. They are composed of a repeating pentapeptide sequence Val-Pro-Gly-Xaa-Gly, where the guest residue (Xaa) can be any naturally occurring amino acid except proline. These polymers undergo reversible phase transition that can be triggered by various environmental stimuli, such as temperature, pH or ionic strength. This behavior depends greatly on the molecular weight, concentration of ELP in the solution and composition of the amino acids constituting ELPs. At a temperature below the inverse transition temperature (Tt), ELPs are soluble, but insoluble when the temperature exceeds Tt. Furthermore, this feature is retained even when ELP is fused to the protein of interest. These unique properties make ELP very useful for a wide variety of biomedical applications (e.g. protein purification, drug delivery etc.) and it can be expected that smart biopolymers will play a significant role in the development of most new materials and technologies. Here we present the structure and properties of thermally responsive elastin-like polypeptides with a particular emphasis on biomedical and biotechnological application.
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Affiliation(s)
- Tomasz Kowalczyk
- Department of Genetics and Plant Molecular Biology and Biotechnology, The University of Lodz, Banacha Street 12/16, 90-237, Lodz, Poland,
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