1
|
Zhu X, Wang C, Bai H, Zhang J, Wang Z, Li Z, Zhao X, Wang J, Liu H. Functionalization of biomimetic mineralized collagen for bone tissue engineering. Mater Today Bio 2023; 20:100660. [PMID: 37214545 PMCID: PMC10199226 DOI: 10.1016/j.mtbio.2023.100660] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/18/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023] Open
Abstract
Mineralized collagen (MC) is the basic unit of bone structure and function and is the main component of the extracellular matrix (ECM) in bone tissue. In the biomimetic method, MC with different nanostructures of neo-bone have been constructed. Among these, extra-fibrous MC has been approved by regulatory agencies and applied in clinical practice to play an active role in bone defect repair. However, in the complex microenvironment of bone defects, such as in blood supply disorders and infections, MC is unable to effectively perform its pro-osteogenic activities and needs to be functionalized to include osteogenesis and the enhancement of angiogenesis, anti-infection, and immunomodulation. This article aimed to discuss the preparation and biological performance of MC with different nanostructures in detail, and summarize its functionalization strategy. Then we describe the recent advances in the osteo-inductive properties and multifunctional coordination of MC. Finally, the latest research progress of functionalized biomimetic MC, along with the development challenges and future trends, are discussed. This paper provides a theoretical basis and advanced design philosophy for bone tissue engineering in different bone microenvironments.
Collapse
Affiliation(s)
- Xiujie Zhu
- Department of Orthopedics, The Second Hospital of Jilin University, 4110 Yatai Street, Changchun, 130041, PR China
| | - Chenyu Wang
- Department of Plastic and Reconstruct Surgery, The First Hospital of Jilin University, 1 Xinmin Street, Changchun, 130021, PR China
| | - Haotian Bai
- Department of Orthopedics, The Second Hospital of Jilin University, 4110 Yatai Street, Changchun, 130041, PR China
| | - Jiaxin Zhang
- Department of Orthopedics, The Second Hospital of Jilin University, 4110 Yatai Street, Changchun, 130041, PR China
| | - Zhonghan Wang
- Department of Orthopedics, The Second Hospital of Jilin University, 4110 Yatai Street, Changchun, 130041, PR China
| | - Zuhao Li
- Department of Orthopedics, The Second Hospital of Jilin University, 4110 Yatai Street, Changchun, 130041, PR China
| | - Xin Zhao
- Department of Orthopedics, The Second Hospital of Jilin University, 4110 Yatai Street, Changchun, 130041, PR China
| | - Jincheng Wang
- Department of Orthopedics, The Second Hospital of Jilin University, 4110 Yatai Street, Changchun, 130041, PR China
| | - He Liu
- Department of Orthopedics, The Second Hospital of Jilin University, 4110 Yatai Street, Changchun, 130041, PR China
| |
Collapse
|
2
|
Arkas M, Vardavoulias M, Kythreoti G, Giannakoudakis DA. Dendritic Polymers in Tissue Engineering: Contributions of PAMAM, PPI PEG and PEI to Injury Restoration and Bioactive Scaffold Evolution. Pharmaceutics 2023; 15:pharmaceutics15020524. [PMID: 36839847 PMCID: PMC9966633 DOI: 10.3390/pharmaceutics15020524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/09/2023] Open
Abstract
The capability of radially polymerized bio-dendrimers and hyperbranched polymers for medical applications is well established. Perhaps the most important implementations are those that involve interactions with the regenerative mechanisms of cells. In general, they are non-toxic or exhibit very low toxicity. Thus, they allow unhindered and, in many cases, faster cell proliferation, a property that renders them ideal materials for tissue engineering scaffolds. Their resemblance to proteins permits the synthesis of derivatives that mimic collagen and elastin or are capable of biomimetic hydroxy apatite production. Due to their distinctive architecture (core, internal branches, terminal groups), dendritic polymers may play many roles. The internal cavities may host cell differentiation genes and antimicrobial protection drugs. Suitable terminal groups may modify the surface chemistry of cells and modulate the external membrane charge promoting cell adhesion and tissue assembly. They may also induce polymer cross-linking for healing implementation in the eyes, skin, and internal organ wounds. The review highlights all the different categories of hard and soft tissues that may be remediated with their contribution. The reader will also be exposed to the incorporation of methods for establishment of biomaterials, functionalization strategies, and the synthetic paths for organizing assemblies from biocompatible building blocks and natural metabolites.
Collapse
Affiliation(s)
- Michael Arkas
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece
- Correspondence: ; Tel.: +30-210-650-3669
| | | | - Georgia Kythreoti
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece
| | | |
Collapse
|
3
|
Tang S, Dong Z, Ke X, Luo J, Li J. Advances in biomineralization-inspired materials for hard tissue repair. Int J Oral Sci 2021; 13:42. [PMID: 34876550 PMCID: PMC8651686 DOI: 10.1038/s41368-021-00147-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/31/2021] [Accepted: 11/02/2021] [Indexed: 12/24/2022] Open
Abstract
Biomineralization is the process by which organisms form mineralized tissues with hierarchical structures and excellent properties, including the bones and teeth in vertebrates. The underlying mechanisms and pathways of biomineralization provide inspiration for designing and constructing materials to repair hard tissues. In particular, the formation processes of minerals can be partly replicated by utilizing bioinspired artificial materials to mimic the functions of biomolecules or stabilize intermediate mineral phases involved in biomineralization. Here, we review recent advances in biomineralization-inspired materials developed for hard tissue repair. Biomineralization-inspired materials are categorized into different types based on their specific applications, which include bone repair, dentin remineralization, and enamel remineralization. Finally, the advantages and limitations of these materials are summarized, and several perspectives on future directions are discussed.
Collapse
Affiliation(s)
- Shuxian Tang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, PR China
| | - Zhiyun Dong
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, PR China
| | - Xiang Ke
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, PR China
| | - Jun Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, PR China.
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, PR China.
- Med-X Center for Materials, Sichuan University, Chengdu, PR China.
| |
Collapse
|
4
|
Gao Y, Liang K, Weir MD, Gao J, Imazato S, Tay FR, Lynch CD, Oates TW, Li J, Xu HH. Enamel remineralization via poly(amido amine) and adhesive resin containing calcium phosphate nanoparticles. J Dent 2020; 92:103262. [DOI: 10.1016/j.jdent.2019.103262] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/18/2019] [Accepted: 12/09/2019] [Indexed: 11/25/2022] Open
|
5
|
Chen H, Tang Y, Weir MD, Lei L, Masri R, Lynch CD, Oates TW, Zhang K, Hu T, Xu HHK. Effects of S. mutans gene-modification and antibacterial calcium phosphate nanocomposite on secondary caries and marginal enamel hardness. RSC Adv 2019; 9:41672-41683. [PMID: 35541571 PMCID: PMC9076473 DOI: 10.1039/c9ra09220j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 12/10/2019] [Indexed: 02/05/2023] Open
Abstract
Secondary caries at the restoration-tooth margins is a main reason for dental restoration failures. Gene-modification for Streptococcus mutans (S. mutans) and composites containing dimethylaminohexadecyl methacrylate (DMAHDMA) and nanoparticles of amorphous calcium phosphate (NACP) all have the potential to suppress bacterial acids and promote remineralization. However, there has been no report of their effects on marginal caries-inhibition and enamel hardness. The objective of this study was to investigate the effects of gene-modification and DMAHDM-NACP composite restoration on enamel demineralization and hardness at the margins under biofilm acids for the first time. Parent S. mutans and rnc gene-deleted S. mutans were tested side by side. The bioactive composite contained 3% DMAHDM and 30% NACP. Mechanical properties and calcium (Ca) and phosphate (P) ion releases were measured. Colony-forming units (CFU), MTT, lactic acid and polysaccharide of biofilms were evaluated. Demineralization of bovine enamel with composite restorations was induced via biofilms, then enamel hardness was measured. The dual strategy of combining rnc-deletion with DMAHDM+30NACP: (1) achieved the strongest biofilm-inhibition, with the greatest reduction in biofilm CFU by 6 logs; (2) decreased biofilm lactic acid and polysaccharide production by more than 80%; (3) achieved enamel hardness that was 140% higher than that of a commercial fluoride-releasing composite under 30 days of biofilm acids. Therefore, the novel dual approach of rnc gene-deletion and DMAHDM+NACP nanocomposite is promising to inhibit secondary caries at the margins and increase the longevity of tooth restorations.
Collapse
Affiliation(s)
- Hong Chen
- State Key Laboratory of Oral Diseases, Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University Chengdu Sichuan 610041 China
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School Baltimore MD 21201 USA
| | - Yunhao Tang
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School Baltimore MD 21201 USA
- Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 China
| | - Michael D Weir
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School Baltimore MD 21201 USA
| | - Lei Lei
- State Key Laboratory of Oral Diseases, Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University Chengdu Sichuan 610041 China
| | - Radi Masri
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School Baltimore MD 21201 USA
| | - Christopher D Lynch
- Restorative Dentistry, University Dental School and Hospital, University College Cork Wilton Cork Ireland
| | - Thomas W Oates
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School Baltimore MD 21201 USA
| | - Ke Zhang
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School Baltimore MD 21201 USA
- School of Stomatology, Capital Medical University Beijing China
| | - Tao Hu
- State Key Laboratory of Oral Diseases, Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University Chengdu Sichuan 610041 China
| | - Hockin H K Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School Baltimore MD 21201 USA
- Center for Stem Cell Biology & Regenerative Medicine, University of Maryland School of Medicine Baltimore MD 21201 USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine Baltimore MD 21201 USA
| |
Collapse
|
6
|
Ridi F, Meazzini I, Castroflorio B, Bonini M, Berti D, Baglioni P. Functional calcium phosphate composites in nanomedicine. Adv Colloid Interface Sci 2017; 244:281-295. [PMID: 27112061 DOI: 10.1016/j.cis.2016.03.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 03/29/2016] [Accepted: 03/31/2016] [Indexed: 12/13/2022]
Abstract
Calcium phosphate (CaP) materials have many peculiar and intriguing properties. In nature, CaP is found in nanostructured form embedded in a soft proteic matrix as the main mineral component of bones and teeth. The extraordinary stoichiometric flexibility, the different stabilities exhibited by its different forms as a function of pH and the highly dynamic nature of its surface ions, render CaP one of the most versatile materials for nanomedicine. This review summarizes some of the guidelines so far emerged for the synthesis of CaP composites in aqueous media that endow the material with tailored crystallinity, morphology, size, and functional properties. First, we introduce very briefly the areas of application of CaP within the nanomedicine field. Then through some selected examples, we review some synthetic routes where the presence of functional units (small templating molecules like surfactants, or oligomers and polymers) assists the synthesis and at the same time impart the functionality or the responsiveness desired for the end-application of the material. Finally, we illustrate two examples from our laboratory, where CaP is decorated by biologically active polymers or prepared within a thermo- and magneto-responsive hydrogel, respectively.
Collapse
Affiliation(s)
- Francesca Ridi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Florence 50019, Italy
| | - Ilaria Meazzini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Florence 50019, Italy
| | - Benedetta Castroflorio
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Florence 50019, Italy
| | - Massimo Bonini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Florence 50019, Italy
| | - Debora Berti
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Florence 50019, Italy
| | - Piero Baglioni
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Florence 50019, Italy.
| |
Collapse
|
7
|
Hentrich D, Taabache S, Brezesinski G, Lange N, Unger W, Kübel C, Bertin A, Taubert A. A Dendritic Amphiphile for Efficient Control of Biomimetic Calcium Phosphate Mineralization. Macromol Biosci 2017; 17. [PMID: 28418231 DOI: 10.1002/mabi.201600524] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/16/2017] [Indexed: 11/07/2022]
Abstract
The phase behavior of a dendritic amphiphile containing a Newkome-type dendron as the hydrophilic moiety and a cholesterol unit as the hydrophobic segment is investigated at the air-liquid interface. The amphiphile forms stable monomolecular films at the air-liquid interface on different subphases. Furthermore, the mineralization of calcium phosphate beneath the monolayer at different calcium and phosphate concentrations versus mineralization time shows that at low calcium and phosphate concentrations needles form, whereas flakes and spheres dominate at higher concentrations. Energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and electron diffraction confirm the formation of calcium phosphate. High-resolution transmission electron microscopy and electron diffraction confirm the predominant formation of octacalcium phosphate and hydroxyapatite. The data also indicate that the final products form via a complex multistep reaction, including an association step, where nano-needles aggregate into larger flake-like objects.
Collapse
Affiliation(s)
- Doreen Hentrich
- Institute of Chemistry, University of Potsdam, 14476, Potsdam, Germany
| | - Soraya Taabache
- Federal Institute for Materials Research and Testing (BAM), 12205, Berlin, Germany.,Fraunhofer ICT-IMM, 55129, Mainz, Germany
| | - Gerald Brezesinski
- Max Planck Institute of Colloids and Interfaces, 14476, Potsdam, Germany
| | - Nele Lange
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany.,Federal Institute for Materials Research and Testing (BAM), Division 6.1 "Surface Analysis and Interfacial Chemistry,", 12203, Berlin, Germany
| | - Wolfgang Unger
- Federal Institute for Materials Research and Testing (BAM), Division 6.1 "Surface Analysis and Interfacial Chemistry,", 12203, Berlin, Germany
| | - Christian Kübel
- Karlsruhe Institute of Technology (KIT), Karlsruhe Nano Micro Facility (KNMF) & Institute of Nanotechnology (INT), 76344, Eggenstein-Leopoldshafen, Germany
| | - Annabelle Bertin
- Federal Institute for Materials Research and Testing (BAM), 12205, Berlin, Germany.,Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - Andreas Taubert
- Institute of Chemistry, University of Potsdam, 14476, Potsdam, Germany
| |
Collapse
|
8
|
Effect and Stability of Poly(Amido Amine)-Induced Biomineralization on Dentinal Tubule Occlusion. MATERIALS 2017; 10:ma10040384. [PMID: 28772744 PMCID: PMC5506945 DOI: 10.3390/ma10040384] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/26/2017] [Accepted: 03/29/2017] [Indexed: 02/05/2023]
Abstract
In recent years, scientists have developed various biomaterials to remineralize human teeth to treat dentine hypersensitivity. Poly(amido amine) (PAMAM) dendrimers have become a research focus in this field. It has been demonstrated that PAMAM is able to create precipitates both on the surface of and within the dentinal tubules, however, there is little information about its effect on reducing dentine permeability in vitro. This study aimed to evaluate the in vitro effectiveness and stability of the fourth generation amine-terminated PAMAM on dentinal tubule occlusion, especially on dentine permeability. Sodium fluoride (NaF), which has been widely used as a desensitizing agent, is regarded as positive control. Demineralized sensitive dentine samples were coated with PAMAM or sodium fluoride solutions and soaked in artificial saliva (AS) at 37 °C for different periods. Four weeks later, samples in each group were then equally split into two subgroups for testing using a brushing challenge and an acid challenge. Dentine permeability of each specimen was measured before and after each challenge using a fluid filtration system. Dentine morphology and surface deposits were characterized by scanning electron microscope (SEM) and analyzed with Image-Pro Plus software. Data were evaluated through multifactorial ANOVA with repeated measures and pair-wise comparisons at a level of 5%. The results showed that PAMAM and NaF significantly reduced dentine permeability to 25.1% and 20.7%. Both of them created precipitates on dentine surfaces after AS immersion for 28 days. PAMAM-induced biomineralization not only on dentine surfaces, but also deeper in dentinal tubules, significantly reduced dentine permeability. Moreover, PAMAM-induced biomineralization elicited excellent stable occlusion effects after acid challenge. In conclusion, PAMAM demonstrated a strong ability to resist acid and showed great potential to be used in the treatment of dentine hypersensitivity in future.
Collapse
|
9
|
Liu Y, Luo D, Wang T. Hierarchical Structures of Bone and Bioinspired Bone Tissue Engineering. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:4611-4632. [PMID: 27322951 DOI: 10.1002/smll.201600626] [Citation(s) in RCA: 213] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 04/04/2016] [Indexed: 06/06/2023]
Abstract
Bone, as a mineralized composite of inorganic (mostly carbonated hydroxyapatite) and organic (mainly type I collagen) phases, possesses a unique combination of remarkable strength and toughness. Its excellent mechanical properties are related to its hierarchical structures and precise organization of the inorganic and organic phases at the nanoscale: Nanometer-sized hydroxyapatite crystals periodically deposit within the gap zones of collagen fibrils during bone biomineralization process. This hierarchical arrangement produces nanomechanical heterogeneities, which enable a mechanism for high energy dissipation and resistance to fracture. The excellent mechanical properties integrated with the hierarchical nanostructure of bone have inspired chemists and material scientists to develop biomimetic strategies for artificial bone grafts in tissue engineering (TE). This critical review provides a broad overview of the current mechanisms involved in bone biomineralization, and the relationship between bone hierarchical structures and the deformation mechanism. Our goal in this review is to inspire the application of these principles toward bone TE.
Collapse
Affiliation(s)
- Yan Liu
- Center for Craniofacial Stem Cell Research and Regeneration, Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Dan Luo
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China
- State Key Laboratory of Heavy Oil Processing, Institute of New Energy, China University of Petroleum (Beijing), Beijing, 102249, P. R. China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| |
Collapse
|
10
|
Kaabi Falahieh Asl S, Nemeth S, Tan MJ. Novel biodegradable calcium phosphate/polymer composite coating with adjustable mechanical properties formed by hydrothermal process for corrosion protection of magnesium substrate. J Biomed Mater Res B Appl Biomater 2015; 104:1643-1657. [PMID: 26340081 DOI: 10.1002/jbm.b.33505] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 07/31/2015] [Accepted: 08/03/2015] [Indexed: 11/08/2022]
Abstract
Ceramic type coatings on metallic implants, such as calcium phosphate (Ca-P), are generally stiff and brittle, potentially leading to the early failure of the bone-implant interface. To reduce material brittleness, polyacrylic acid and carboxymethyl cellulose were used in this study to deposit two types of novel Ca-P/polymer composite coatings on AZ31 magnesium alloy using a one-step hydrothermal process. X-ray diffraction and scanning electron microscopy showed that the deposited Ca-P crystal phase and morphology could be controlled by the type and concentration of polymer used. Incorporation of polymer in the Ca-P coatings reduced the coating elastic modulus bringing it close to that of magnesium and that of human bone. Nanoindentation test results revealed significantly decreased cracking tendency with the incorporation of polymer in the Ca-P coating. Apart from mechanical improvements, the protective composite layers had also enhanced the corrosion resistance of the substrate by a factor of 1000 which is sufficient for implant application. Cell proliferation studies indicated that the composite coatings induced better cell attachment compared with the purely inorganic Ca-P coating, confirming that the obtained composite materials could be promising candidates for surface protection of magnesium for implant application with the multiple functions of corrosion protection, interfacial stress reduction, and cell attachment/cell growth promotion. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1643-1657, 2016.
Collapse
Affiliation(s)
- Sara Kaabi Falahieh Asl
- School of Mechanical & Aerospace Engineering, Nanyang Technological University, 639708, Singapore. .,Singapore Institute Of Manufacturing Technology, 638075, Singapore.
| | - Sandor Nemeth
- Singapore Institute Of Manufacturing Technology, 638075, Singapore
| | - Ming Jen Tan
- School of Mechanical & Aerospace Engineering, Nanyang Technological University, 639708, Singapore
| |
Collapse
|
11
|
Wang T, Yang S, Wang L, Feng H. Use of poly (amidoamine) dendrimer for dentinal tubule occlusion: a preliminary study. PLoS One 2015; 10:e0124735. [PMID: 25885090 PMCID: PMC4401684 DOI: 10.1371/journal.pone.0124735] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Accepted: 03/03/2015] [Indexed: 12/14/2022] Open
Abstract
The occlusion of dentinal tubules is an effective method to alleviate the symptoms caused by dentin hypersensitivity, a significant health problem in dentistry and daily life. The in situ mineralization within dentinal tubules is a promising treatment for dentin hypersensitivity as it induces the formation of mineral on the sensitive regions and occludes the dentinal tubules. This study was carried out to evaluate the in vitro effect of a whole generation poly(amidoamine) (PAMAM) dendrimer (G3.0) on dentinal tubule occlusion by inducing mineralization within dentinal tubules. Dentin discs were treated with PAMAM dendrimers using two methods, followed by the in vitro characterization using Attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM) and Energy-Dispersive X-ray Spectroscopy (EDS). These results showed that G3.0 PAMAM dendrimers coated on dentin surface and infiltrated in dentinal tubules could induce hydroxyapatite formation and resulted in effective dentinal tubule occlusion. Moreover, crosslinked PAMAM dendrimers could induce the remineralization of demineralized dentin and thus had the potential in dentinal tubule occlusion. In this in vitro study, dentinal tubules occlusion could be achieved by using PAMAM dendrimers. This could lead to the development of a new therapeutic technique for the treatment of dentin hypersensitivity.
Collapse
Affiliation(s)
- Tianda Wang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - Sheng Yang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Lei Wang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - Hailan Feng
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| |
Collapse
|
12
|
Yang X, Shang H, Ding C, Li J. Recent developments and applications of bioinspired dendritic polymers. Polym Chem 2015. [DOI: 10.1039/c4py01537a] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review highlights the bioinspired applications of dendritic polymers, focusing on their structure–function relationship to natural biomolecules such as proteins.
Collapse
Affiliation(s)
- Xiao Yang
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Hui Shang
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Chunmei Ding
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Jianshu Li
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- China
- State Key Laboratory of Polymer Materials Engineering
| |
Collapse
|
13
|
Wang T, Yang S, Wang L, Feng H. Use of multifunctional phosphorylated PAMAM dendrimers for dentin biomimetic remineralization and dentinal tubule occlusion. RSC Adv 2015. [DOI: 10.1039/c4ra14744h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Phosphorylated poly(amidoamine) dendrimers can induce biomimetic remineralization of demineralized dentin as analogs of non-collagenous proteins in the presence of polyacrylic acid, an amorphous calcium phosphate stabilizing agent.
Collapse
Affiliation(s)
- Tianda Wang
- Department of Prosthodontics
- Peking University School and Hospital of Stomatology
- Beijing
- China
| | - Sheng Yang
- Department of Prosthodontics
- Peking University School and Hospital of Stomatology
- Beijing
- China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences
| | - Lei Wang
- Department of Prosthodontics
- Peking University School and Hospital of Stomatology
- Beijing
- China
| | - Hailan Feng
- Department of Prosthodontics
- Peking University School and Hospital of Stomatology
- Beijing
- China
| |
Collapse
|
14
|
Chen M, Yang J, Li J, Liang K, He L, Lin Z, Chen X, Ren X, Li J. Modulated regeneration of acid-etched human tooth enamel by a functionalized dendrimer that is an analog of amelogenin. Acta Biomater 2014; 10:4437-46. [PMID: 24879313 DOI: 10.1016/j.actbio.2014.05.016] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 05/15/2014] [Accepted: 05/16/2014] [Indexed: 11/24/2022]
Abstract
In the bioinspired repair process of tooth enamel, it is important to simultaneously mimic the organic-matrix-induced biomineralization and increase the binding strength at the remineralization interface. In this work, a fourth-generation polyamidoamine dendrimer (PAMAM) is modified by dimethyl phosphate to obtain phosphate-terminated dendrimer (PAMAM-PO3H2) since it has a similar dimensional scale and peripheral functionalities to that of amelogenin, which plays important role in the natural development process of enamel. Its phosphate group has stronger affinity for calcium ion than carboxyl group and can simultaneously provide strong hydroxyapatite (HA)-binding capability. The MTT assay demonstrates the low cytotoxicity of PAMAM-PO3H2. Adsorption tests indicate that PAMAM-PO3H2 can be tightly adsorbed on the human tooth enamel. Scanning electron microscopy and X-ray diffraction are used to analyze the remineralization process. After being incubated in artificial saliva for 3weeks, there is a newly generated HA layer of 11.23μm thickness on the acid-etched tooth enamel treated by PAMAM-PO3H2, while the thickness for the carboxyl-terminated one (PAMAM-COOH) is only 6.02μm. PAMAM-PO3H2 can regulate the remineralization process to form ordered new crystals oriented along the Z-axis and produce an enamel prism-like structure that is similar to that of natural tooth enamel. The animal experiment also demonstrates that PAMAM-PO3H2 can induce significant HA regeneration in the oral cavity of rats. Thus PAMAM-PO3H2 shows great potential as a biomimetic restorative material for human tooth enamel.
Collapse
|
15
|
Jia R, Lu Y, Yang CW, Luo X, Han Y. Effect of generation 4.0 polyamidoamine dendrimer on the mineralization of demineralized dentinal tubules in vitro. Arch Oral Biol 2014; 59:1085-93. [DOI: 10.1016/j.archoralbio.2014.06.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 06/02/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
|
16
|
Liang K, Yuan H, Li J, Yang J, Zhou X, He L, Cheng L, Gao Y, Xu X, Zhou X, Li J. Remineralization of Demineralized Dentin Induced by Amine-Terminated PAMAM Dendrimer. MACROMOLECULAR MATERIALS AND ENGINEERING 2014. [DOI: 10.1002/mame.201400207] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Kunneng Liang
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
- Department of Operative Dentistry and Endodontics; West China Hospital of Stomatology; Sichuan University; Chengdu 610041 China
| | - He Yuan
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
- Department of Operative Dentistry and Endodontics; West China Hospital of Stomatology; Sichuan University; Chengdu 610041 China
| | - Jianshu Li
- Department of Biomedical Polymers and Artificial Organs; College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Jiaojiao Yang
- Department of Biomedical Polymers and Artificial Organs; College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Xin Zhou
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
- Department of Operative Dentistry and Endodontics; West China Hospital of Stomatology; Sichuan University; Chengdu 610041 China
| | - Libang He
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
- Department of Operative Dentistry and Endodontics; West China Hospital of Stomatology; Sichuan University; Chengdu 610041 China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
- Department of Operative Dentistry and Endodontics; West China Hospital of Stomatology; Sichuan University; Chengdu 610041 China
| | - Yuan Gao
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
- Department of Operative Dentistry and Endodontics; West China Hospital of Stomatology; Sichuan University; Chengdu 610041 China
| | - Xin Xu
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
- Department of Operative Dentistry and Endodontics; West China Hospital of Stomatology; Sichuan University; Chengdu 610041 China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
- Department of Operative Dentistry and Endodontics; West China Hospital of Stomatology; Sichuan University; Chengdu 610041 China
| | - Jiyao Li
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu 610041 China
- Department of Operative Dentistry and Endodontics; West China Hospital of Stomatology; Sichuan University; Chengdu 610041 China
| |
Collapse
|
17
|
Hydroxyapatite-anchored dendrimer for in situ remineralization of human tooth enamel. Biomaterials 2013; 34:5036-47. [DOI: 10.1016/j.biomaterials.2013.03.053] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 03/15/2013] [Indexed: 12/20/2022]
|
18
|
Yang S, He H, Wang L, Jia X, Feng H. Oriented crystallization of hydroxyapatite by the biomimetic amelogenin nanospheres from self-assemblies of amphiphilic dendrons. Chem Commun (Camb) 2011; 47:10100-2. [DOI: 10.1039/c1cc13661e] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|