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Rosenberg A, Solomonov A, Cohen H, Eliaz D, Kellersztein I, Brookstein O, Kozell A, Wang L, Wagner HD, Daraio C, Shimanovich U. From Basic Principles of Protein-Polysaccharide Association to the Rational Design of Thermally Sensitive Materials. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9210-9223. [PMID: 38330192 PMCID: PMC10895586 DOI: 10.1021/acsami.3c12926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/10/2024]
Abstract
Biology resolves design requirements toward functional materials by creating nanostructured composites, where individual components are combined to maximize the macroscale material performance. A major challenge in utilizing such design principles is the trade-off between the preservation of individual component properties and emerging composite functionalities. Here, polysaccharide pectin and silk fibroin were investigated in their composite form with pectin as a thermal-responsive ion conductor and fibroin with exceptional mechanical strength. We show that segregative phase separation occurs upon mixing, and within a limited compositional range, domains ∼50 nm in size are formed and distributed homogeneously so that decent matrix collective properties are established. The composite is characterized by slight conformational changes in the silk domains, sequestering the hydrogen-bonded β-sheets as well as the emergence of randomized pectin orientations. However, most dominant in the composite's properties is the introduction of dense domain interfaces, leading to increased hydration, surface hydrophilicity, and increased strain of the composite material. Using controlled surface charging in X-ray photoelectron spectroscopy, we further demonstrate Ca ions (Ca2+) diffusion in the pectin domains, with which the fingerprints of interactions at domain interfaces are revealed. Both the thermal response and the electrical conductance were found to be strongly dependent on the degree of composite hydration. Our results provide a fundamental understanding of the role of interfacial interactions and their potential applications in the design of material properties, polysaccharide-protein composites in particular.
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Affiliation(s)
- Asaf Rosenberg
- Department of Molecular Chemistry and Materials Science, Faculty of Chemistry, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Aleksei Solomonov
- Department of Molecular Chemistry and Materials Science, Faculty of Chemistry, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Hagai Cohen
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Dror Eliaz
- Department of Molecular Chemistry and Materials Science, Faculty of Chemistry, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Israel Kellersztein
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, United States
| | - Ori Brookstein
- Department of Molecular Chemistry and Materials Science, Faculty of Chemistry, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Anna Kozell
- Department of Molecular Chemistry and Materials Science, Faculty of Chemistry, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Linghui Wang
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, United States
| | - Hanoch Daniel Wagner
- Department of Molecular Chemistry and Materials Science, Faculty of Chemistry, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Chiara Daraio
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, United States
| | - Ulyana Shimanovich
- Department of Molecular Chemistry and Materials Science, Faculty of Chemistry, Weizmann Institute of Science, Rehovot 7610001, Israel
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2
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Hu J, Li C, Yang Z, Wu Q, Wang J, Xu Z, Chen Y, Wan Q, Shuai Y, Yang S, Yang M. Hierarchically patterned protein scaffolds with nano-fibrillar and micro-lamellar structures modulate neural stem cell homing and promote neuronal differentiation. Biomater Sci 2023; 11:7663-7677. [PMID: 37855269 DOI: 10.1039/d3bm00801k] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Biophysical factors are essential in cell survival and behaviors, but constructing a suitable 3D microenvironment for the recruitment of stem cells and exerting their physiological functions remain a daunting challenge. Here, we present a novel silk fibroin (SF)-based fabrication strategy to develop hierarchical microchannel scaffolds for biomimetic nerve microenvironments in vitro. We first modulated the formation of SF nanofibers (SFNFs) that mimic the nanostructures of the native extracellular matrix (ECM) by using graphene oxide (GO) nanosheets as templates. Then, SFNF-GO systems were shaped into 3D porous scaffolds with aligned micro-lamellar structures by freeze-casting. The interconnected microchannels successfully induced cell infiltration and migration to the SFNF-GO scaffolds' interior. Meanwhile, the nano-fibrillar structures and the GO component significantly induced neural stem cells (NSCs) to differentiate into neurons within a short timeframe of 14 d. Importantly, these 3D hierarchical scaffolds induced a mild inflammatory response, extensive cell recruitment, and effective stimulation of NSC neuronal differentiation when implanted in vivo. Therefore, these SFNF-GO lamellar scaffolds with distinctive nano-/micro-topographies hold promise in the fields of nerve injury repair and regenerative medicine.
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Affiliation(s)
- Jiaqi Hu
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Chenlin Li
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Zhangze Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Qi Wu
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Jie Wang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
| | - Zongpu Xu
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
| | - Yuyin Chen
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
| | - Quan Wan
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
| | - Yajun Shuai
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
| | - Shuxu Yang
- Department of Neurosurgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Hangzhou, 310016, China.
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
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3
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Huang Y, Xie H, Fang W, Zou Z, Fu Z. Silk fibroin directs the formation of monetite nanocrystals and their assembly into hierarchical composites. J Mater Chem B 2021; 9:9136-9141. [PMID: 34693962 DOI: 10.1039/d1tb01821c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Natural biominerals are usually composite materials produced through mineralization of inorganic crystals within an organic matrix. Silk fibroin is known to be capable of directing the nucleation and growth of hydroxyapatite crystals. Here, we used silk films as the substrate to induce the mineralization of calcium phosphate. We show that the silk fibroin in solution could induce the formation of monetite crystals with a hierarchical structure, which are assembled by well aligned single crystals of monetite. In addition, we show that silk fibroins are incorporated inside the crystals. Therefore, the self-assembly of silk fibroin during the crystallization process is critical for the formation of such hierarchical structures.
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Affiliation(s)
- Ying Huang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
| | - Hao Xie
- School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan, 430070, China.
| | - Weijian Fang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
| | - Zhaoyong Zou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
| | - Zhengyi Fu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
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4
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Calcium-Based Biomineralization: A Smart Approach for the Design of Novel Multifunctional Hybrid Materials. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5100278] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Biomineralization consists of a complex cascade of phenomena generating hybrid nano-structured materials based on organic (e.g., polymer) and inorganic (e.g., hydroxyapatite) components. Biomineralization is a biomimetic process useful to produce highly biomimetic and biocompatible materials resembling natural hard tissues such as bones and teeth. In detail, biomimetic materials, composed of hydroxyapatite nanoparticles (HA) nucleated on an organic matrix, show extremely versatile chemical compositions and physical properties, which can be controlled to address specific challenges. Indeed, different parameters, including (i) the partial substitution of mimetic doping ions within the HA lattice, (ii) the use of different organic matrices, and (iii) the choice of cross-linking processes, can be finely tuned. In the present review, we mainly focused on calcium biomineralization. Besides regenerative medicine, these multifunctional materials have been largely exploited for other applications including 3D printable materials and in vitro three-dimensional (3D) models for cancer studies and for drug testing. Additionally, biomineralized multifunctional nano-particles can be involved in applications ranging from nanomedicine as fully bioresorbable drug delivery systems to the development of innovative and eco-sustainable UV physical filters for skin protection from solar radiations.
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5
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Chen Y, Wu H, Yang T, Zhou G, Chen Y, Wang J, Mao C, Yang M. Biomimetic Nucleation of Metal-Organic Frameworks on Silk Fibroin Nanoparticles for Designing Core-Shell-Structured pH-Responsive Anticancer Drug Carriers. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47371-47381. [PMID: 34582680 DOI: 10.1021/acsami.1c13405] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Silk fibroin (SF) is a biomacromolecule that can be assembled into nanostructures and induce biomimetic nucleation of inorganic materials. Zeolitic imidazolate framework-8 (ZIF-8), a metal-organic framework (MOF), can be dissolved selectively under acidic pH. Here, we integrated SF and ZIF-8 to develop novel drug carriers that selectively release drug in the acidic intracellular environment of cancer cells. Specifically, SF was assembled into nanoparticles (SF-NPs), which were then loaded with an antitumor drug, doxorubicin (DOX), to form DSF-NPs. Due to the SF-mediated organization of ZIF-8 precursors such as zinc ions, the DSF-NPs further templated the nucleation of ZIF-8 onto their surface to generate core-shell-structured NPs (termed DSF@Z-NPs) with ZIF-8 as a shell and DSF-NP as a core. We found that the DSF@Z-NPs, highly stable under neutral conditions, could be uptaken by breast cancer cells, release DOX selectively owing to dissolution of ZIF-8 shells in the acidic intracellular environment in a controlled manner, and induce cell apoptosis. We also confirmed that the DSF@Z-NPs could inhibit tumor growth more efficiently to reach a higher survival rate than their controls by inducing cell apoptosis in vivo. Our study suggests that SF and MOF could be combined to design a new type of cancer therapeutics.
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Affiliation(s)
- Yuping Chen
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, P. R. China
| | - Hesong Wu
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, P. R. China
| | - Tao Yang
- College of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027 Zhejiang, P. R. China
| | - Guanshan Zhou
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, P. R. China
| | - Yuyin Chen
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, P. R. China
| | - Jie Wang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, P. R. China
| | - Chuanbin Mao
- College of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027 Zhejiang, P. R. China
- Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, Institute for Biomedical Engineering, Science and Technology, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019-5251, United States
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, P. R. China
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6
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Huang Y, Zou Z, Ping H, Lei L, Xie J, Xie H, Fu Z. Mineralization of calcium phosphate induced by a silk fibroin film under different biological conditions. RSC Adv 2021; 11:18590-18596. [PMID: 35480911 PMCID: PMC9033461 DOI: 10.1039/d1ra02199k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/10/2021] [Indexed: 11/21/2022] Open
Abstract
Silk fibroin films can have an important effect on the mineralization process of calcium phosphate in different biological environments. There was improvement of MSF with good biocompatibility that are promising in bone tissue engineering.
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Affiliation(s)
- Ying Huang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology Wuhan 430070 China
| | - Zhaoyong Zou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology Wuhan 430070 China
| | - Hang Ping
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology Wuhan 430070 China
| | - Liwen Lei
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology Wuhan 430070 China
| | - Jingjing Xie
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology Wuhan 430070 China
| | - Hao Xie
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology Wuhan 430070 China
| | - Zhengyi Fu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology Wuhan 430070 China
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7
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Zheng H, Duan B, Xie Z, Wang J, Yang M. Inventing a facile method to construct Bombyx mori ( B. mori) silk fibroin nanocapsules for drug delivery. RSC Adv 2020; 10:28408-28414. [PMID: 35519128 PMCID: PMC9055660 DOI: 10.1039/d0ra04024j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 07/19/2020] [Indexed: 11/21/2022] Open
Abstract
Bombyx mori (B. mori) silk fibroin (SF) microcapsules have acted as a great candidate in delivering drugs. However, it is difficult to fabricate SF nanocapsules using the present layer-by-layer (LBL) technique. In addition, the current SF microcapsules have limits in loading negatively charged drugs. Here, we invent a novel LBL method by introducing silane (APTES) as a structure indicator to produce SF nanocapsules that can load drugs with negative or positive charge. LBL assembly was completed by alternately coating SF and APTES on the template of polystyrene (PS) nanospheres by electrostatic attraction. SF nanocapsules were obtained after removal of the PS templates. Zeta potential analysis proved LBL assembly was indeed driven by the interaction between negative charge of SF and positive charge of APTES. Fluorescence images and electric microscope images indicated that SF nanocapsules had a hollow and stable structure with diameter at nearly 250 nm. The highest encapsulation rate of DOX or Ce6 were up to 80% and 90%, respectively, indicating SF nanocapsules have a high loading capability for both cationic and anionic drugs. In vitro cell experiments proved the biocompatibility of SF nanocapsules and their burst drug release in response to acidic environment. Furthermore, chemotherapy and photodynamic therapy proved SF nanocapsules loaded with DOX or Ce6 had significant inhibition on tumor cells. Our results suggested that this LBL technique is a facile method for polymers with negative charge to fabricate nanocapsules for antitumor drug carrier.
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Affiliation(s)
- Heming Zheng
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine East Qingchun Road 3 Hangzhou Zhejiang China
| | - Bo Duan
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources Yuhangtang Road 866 Hangzhou 310058 Zhejiang China +86 571 88982219
| | - Zheyu Xie
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources Yuhangtang Road 866 Hangzhou 310058 Zhejiang China +86 571 88982219
| | - Jie Wang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources Yuhangtang Road 866 Hangzhou 310058 Zhejiang China +86 571 88982219
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources Yuhangtang Road 866 Hangzhou 310058 Zhejiang China +86 571 88982219
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8
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Veiga A, Castro F, Rocha F, Oliveira AL. Protein-Based Hydroxyapatite Materials: Tuning Composition toward Biomedical Applications. ACS APPLIED BIO MATERIALS 2020; 3:3441-3455. [DOI: 10.1021/acsabm.0c00140] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Anabela Veiga
- LEPABE − Laboratory for Process Engineering, Environment, Biotechnology & Energy, Department of Chemical Engineering, Faculty of Engineering of Porto, University of Porto, Porto, Portugal
| | - Filipa Castro
- LEPABE − Laboratory for Process Engineering, Environment, Biotechnology & Energy, Department of Chemical Engineering, Faculty of Engineering of Porto, University of Porto, Porto, Portugal
| | - Fernando Rocha
- LEPABE − Laboratory for Process Engineering, Environment, Biotechnology & Energy, Department of Chemical Engineering, Faculty of Engineering of Porto, University of Porto, Porto, Portugal
| | - Ana L. Oliveira
- CBQF - Centro de Biotecnologia e Quı́mica Fina - Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Porto, Portugal
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9
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Šupová M. The Significance and Utilisation of Biomimetic and Bioinspired Strategies in the Field of Biomedical Material Engineering: The Case of Calcium Phosphat-Protein Template Constructs. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E327. [PMID: 31936830 PMCID: PMC7013803 DOI: 10.3390/ma13020327] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/03/2020] [Accepted: 01/07/2020] [Indexed: 02/07/2023]
Abstract
This review provides a summary of recent research on biomimetic and bioinspired strategies applied in the field of biomedical material engineering and focusing particularly on calcium phosphate-protein template constructs inspired by biomineralisation. A description of and discussion on the biomineralisation process is followed by a general summary of the application of the biomimetic and bioinspired strategies in the fields of biomedical material engineering and regenerative medicine. Particular attention is devoted to the description of individual peptides and proteins that serve as templates for the biomimetic mineralisation of calcium phosphate. Moreover, the review also presents a description of smart devices including delivery systems and constructs with specific functions. The paper concludes with a summary of and discussion on potential future developments in this field.
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Affiliation(s)
- Monika Šupová
- Department of Composites and Carbon Materials, Institute of Rock Structure and Mechanics, The Czech Academy of Sciences, V Holešovičkách 41, 182 09 Prague, Czech Republic
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10
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Dellaquila A, Greco G, Campodoni E, Mazzocchi M, Mazzolai B, Tampieri A, Pugno NM, Sandri M. Optimized production of a high‐performance hybrid biomaterial: biomineralized spider silk for bone tissue engineering. J Appl Polym Sci 2019. [DOI: 10.1002/app.48739] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alessandra Dellaquila
- ISTEC CNR—Institute of Science and Technology for CeramicsNational Research Council, Via Granarolo 64 Faenza 48018 Italy
| | - Gabriele Greco
- Laboratory of Bio‐inspired & Graphene Nanomechanics, Department of Civil, Environmental and Mechanical EngineeringUniversity of Trento, Via Mesiano 77 Trento 38123 Italy
- Center for Micro‐BioRobotics@SSSAIstituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34 Pontedera I‐56025 Italy
| | - Elisabetta Campodoni
- ISTEC CNR—Institute of Science and Technology for CeramicsNational Research Council, Via Granarolo 64 Faenza 48018 Italy
| | - Mauro Mazzocchi
- ISTEC CNR—Institute of Science and Technology for CeramicsNational Research Council, Via Granarolo 64 Faenza 48018 Italy
| | - Barbara Mazzolai
- Center for Micro‐BioRobotics@SSSAIstituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34 Pontedera I‐56025 Italy
| | - Anna Tampieri
- ISTEC CNR—Institute of Science and Technology for CeramicsNational Research Council, Via Granarolo 64 Faenza 48018 Italy
| | - Nicola M. Pugno
- Laboratory of Bio‐inspired & Graphene Nanomechanics, Department of Civil, Environmental and Mechanical EngineeringUniversity of Trento, Via Mesiano 77 Trento 38123 Italy
- School of Engineering and Materials ScienceQueen Mary University of London, Mile End Road, E1 4NS London United Kingdom
- Ket‐LabEdoardo Amaldi Foundation, Via del Politecnico snc Rome 00133 Italy
| | - Monica Sandri
- ISTEC CNR—Institute of Science and Technology for CeramicsNational Research Council, Via Granarolo 64 Faenza 48018 Italy
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11
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Deen I, Rosei F. Silk fibroin-derived polypeptides additives to promote hydroxyapatite nucleation in dense collagen hydrogels. PLoS One 2019; 14:e0219429. [PMID: 31306436 PMCID: PMC6629059 DOI: 10.1371/journal.pone.0219429] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 06/24/2019] [Indexed: 11/30/2022] Open
Abstract
Silk fibroin-derived polypeptides (FDPs) are polypeptides resulting from the enzymatic separation of the hydrophobic crystalline (Cp) and hydrophilic electronegative amorphous (Cs) components of silk fibroin (SF). The role of these polypeptides in promoting the nucleation of hydroxyapatite (HA) has been previously investigated, yet is still not fully understood. Here we study the potential of HA mineralization via FDPs incorporated at 1:10, 1:2 and 1:1 in a plastically compressed (PC) and dense collagen (DC) scaffold. Scaffolds were immersed in simulated body fluid (SBF) at physiological conditions (pH = 7.4, 37°C) to promote biomineralization. The effect of Cs and Cp to promote HA nucleation was investigated at different time points, and compared to pure DC scaffolds. Characterization of Cs and Cp fragments using Liquid Chromatography-Mass Spectrometry (LCMS) showed little difference in the amino acid composition of the FDPs. Results obtained in vitro using Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), Scanning Electron Microscopy (SEM) X-Ray Diffraction (XRD) and mass analysis showed little difference between scaffolds that incorporated Cs, Cp, and DC hydrogels. These results demonstrated that silk FDPs incorporation are not yet suitable to promote HA nucleation in vivo without further refining the collagen-FDP system.
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Affiliation(s)
- Imran Deen
- Centre Énergie, Matériaux et Télécommunications, Institut national de la recherche scientifique, Varennes, QC, Canada
| | - Federico Rosei
- Centre Énergie, Matériaux et Télécommunications, Institut national de la recherche scientifique, Varennes, QC, Canada
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12
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Zhang Q, Ma L, Zheng S, Wang Y, Feng M, Shuai Y, Duan B, Fan X, Yang M, Mao C. Air-plasma treatment promotes bone-like nano-hydroxylapatite formation on protein films for enhanced in vivo osteogenesis. Biomater Sci 2019; 7:2326-2334. [PMID: 30907916 PMCID: PMC6555639 DOI: 10.1039/c9bm00020h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Introducing hydroxylapatite (HAp) into biomolecular materials is a promising approach to improve their bone regenerative capability. Thus a facile method needs to be developed to achieve this goal. Here we show that a simple air-plasma treatment of silk fibroin (SF) films for 5 min induced the formation of bone-like plate-shaped nano-HAp (nHAp) on their surface and the resultant material efficiently enhanced in vivo osteogenesis. The air-plasma-treated SF films (termed A-SF) presented surface nano-pillars and enhanced hydrophilicity compared to the pristine SF films (termed SF), making the A-SF and SF films induce the formation of plate-shaped/more-crystalline and needle-like/less-crystalline nHAp, respectively. The mineralized A-SF and SF films (termed A-SF-nHAp and SF-nHAp, respectively) and their non-mineralized counterparts were seeded with rat mesenchymal stem cells and subcutaneously implanted into the rat models. The A-SF-nHAp and A-SF films exhibited more efficient bone formation than the SF-nHAp and SF films in 4 weeks due to their unique nanotopography, with the A-SF-nHAp films being more efficient than the A-SF films. This work shows that a combination of the air-plasma treatment and the subsequent nHAp mineralization most efficiently promotes bone formation. Our plasma-based method is an attractive approach to enhance the bone regenerative capacity of protein-based biomaterials.
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Affiliation(s)
- Qing Zhang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
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13
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Wang J, Zhang Y, Jin N, Mao C, Yang M. Protein-Induced Gold Nanoparticle Assembly for Improving the Photothermal Effect in Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:11136-11143. [PMID: 30869510 DOI: 10.1021/acsami.8b21488] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Gold nanoparticles (AuNPs) are promising photothermal agents for cancer therapy. However, the absorption of spherical AuNPs is weak in the desired tissue-penetrating near-infrared (NIR) window, resulting in low photothermal efficiency within this window. Here, we show that fibrous nanostructures assembled from spherical AuNPs since the templating effect of silk fibroin (SF) could red-shift the optical absorption to NIR and thus present improved photothermal efficiency within the NIR window. Specifically, negatively charged SF, a protein derived from Bombyx mori, was assembled into nanofibers due to the interaction with the positively charged AuNPs and concomitantly templated the AuNPs into fibrous nanostructures. The resultant AuNPs/SF nanofibers presented higher NIR light absorption at 808 nm and higher photothermal efficiency under 808 nm NIR irradiation than nonassembled AuNPs. In vitro and in vivo analyses proved that AuNPs/SF nanofibers could efficiently kill breast cancer cells and destruct breast cancer tumor tissues under one-time NIR irradiation for 6 min by photothermal therapy (PTT) but nonassembled AuNPs could not. This work suggests that the self-assembled AuNPs/SF nanofibers are effective photosensitizers for PTT, and biotemplated assembly of photothermal agents into highly ordered nanostructures is a promising approach to increasing the PTT efficiency.
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Affiliation(s)
- Jie Wang
- Institute of Applied Bioresource Research, College of Animal Science , Zhejiang University , Yuhangtang Road 866 , Hangzhou , 310058 Zhejiang , China
| | - Ying Zhang
- Institute of Applied Bioresource Research, College of Animal Science , Zhejiang University , Yuhangtang Road 866 , Hangzhou , 310058 Zhejiang , China
| | - Na Jin
- Institute of Applied Bioresource Research, College of Animal Science , Zhejiang University , Yuhangtang Road 866 , Hangzhou , 310058 Zhejiang , China
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, Institute for Biomedical Engineering, Science and Technology , University of Oklahoma , 101 Stephenson Parkway , Norman , Oklahoma 73019-5251 , United States
- School of Materials Science and Engineering , Zhejiang University , Hangzhou , Zhejiang 310027 , China
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science , Zhejiang University , Yuhangtang Road 866 , Hangzhou , 310058 Zhejiang , China
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Shuai Y, Mao C, Yang M. Protein Nanofibril Assemblies Templated by Graphene Oxide Nanosheets Accelerate Early Cell Adhesion and Induce Osteogenic Differentiation of Human Mesenchymal Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31988-31997. [PMID: 30204402 PMCID: PMC6310480 DOI: 10.1021/acsami.8b11811] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bombyx mori silk fibroin (SF) is a promising natural biocompatible protein. However, its interaction with graphene oxide (GO) has never been studied and the resultant SF/GO matrix has not been used to direct stem cell fate. Herein, we found out that mixing SF molecules and GO nanosheets in an aqueous solution can trigger the assembly of SF nanoparticles into oriented nanofibrils due to the guidance of GO nanosheets, forming SF/GO films with unique nanotopographies and improved modulus upon the removal of the solvent. When GO mass percentage in the SF/GO films is 2 and 10%, the SF assemblies are necklace-like nanofibrils (assembled from loosely linked SF nanoparticles) and solid nanofibrils (assembled from densely linked SF nanoparticles) in the resultant films, termed SG2 and SG10, respectively. GO nanosheets guided the SF assembly into nanofibrils by triggering the structural change of SF molecules from random coils to β-sheets, as confirmed by Fourier transform infrared spectroscopy and circular dichroism measurements. Furthermore, oxidative groups in the GO nanosheets were reduced by the reducing groups in SF during the nanofibril formation according to X-ray photoelectron spectroscopy and Raman spectroscopy. The reduction of the oxidative groups in GO by SF was further verified by the good cell viability on the SF/GO films. The unique nanotopographies of the SF/GO films were found to accelerate the early cell adhesion and induce the osteogenic differentiation of human mesenchymal stem cells (MSCs) even in the absence of additional inducers in the medium. More importantly, SG10 presents a stronger capability in promoting early MSC adhesion by promoting F-actin assembly, increasing cell spreading area, and inducing the osteogenic differentiation of the MSCs by the unique SF/GO nanofibrous matrix. To the best of our knowledge, it is the first report that the SF/GO substrates can induce the osteogenic differentiation of MSCs in the absence of osteogenic differentiation medium. Therefore, SF/GO composite materials would have a potential application in the field of bone tissue engineering.
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Affiliation(s)
- Yajun Shuai
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, Institute for Biomedical Engineering, Science and Technology, University of Oklahoma, 101 Stephenson Parkway, Room 3310, Norman, Oklahoma 73019-5300, United States
| | - Chuanbin Mao
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, Institute for Biomedical Engineering, Science and Technology, University of Oklahoma, 101 Stephenson Parkway, Room 3310, Norman, Oklahoma 73019-5300, United States
| | - Mingying Yang
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
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Ma D, Wang Y, Dai W. Silk fibroin-based biomaterials for musculoskeletal tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:456-469. [DOI: 10.1016/j.msec.2018.04.062] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 02/22/2018] [Accepted: 04/19/2018] [Indexed: 12/16/2022]
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16
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Wang X, Ding Z, Wang C, Chen X, Xu H, Lu Q, Kaplan DL. Bioactive Silk Hydrogels with Tunable Mechanical Properties. J Mater Chem B 2018; 6:2739-2746. [PMID: 30345058 PMCID: PMC6191054 DOI: 10.1039/c8tb00607e] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Developing bioactive hydrogels with potential to guide the differentiation behavior of stem cells has become increasingly important in the biomaterials field. Here, silk hydrogels with tunable mechanical properties were developed by introducing inert silk fibroin nanofibers (SNF) within an enzyme crosslinked system of regenerated silk fibroin (RSF). After the crosslinking reaction of RSF, the inert SNF was embedded into the RSF hydrogel matrix, resulting in improved mechanical properties. Tunable stiffness in the range of 9-60 KPa was achieved by adjusting the amount of the added NSF, significantly higher than SNF-free hydrogels formed under same conditions (about 1 KPa). In addition, the proliferation of rat bone marrow derived mesenchymal stem cells cultured on the composite hydrogels and differentiated into endothelial cells, myoblast and osteoblast cells was improved, putatively due to the control of stiffness of the hydrogels. Bioactive and tunable silk-based hydrogels were prepared via a composite SNF and crosslinked RSF system, providing a new strategy to design silk biomaterials with tunable mechanical and biological performance.
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Affiliation(s)
- Xue Wang
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, P. R. China
| | - Zhaozhao Ding
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science, Soochow University, Suzhou 215123, P. R. China
| | - Chen Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, P. R. China
| | - Xiangdong Chen
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, P. R. China
| | - Hui Xu
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, P. R. China
| | - Qiang Lu
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science, Soochow University, Suzhou 215123, P. R. China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
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Chen T, Shi P, Li Y, Duan T, Yu Y, Li X, Zhu W. Biomineralization of varied calcium carbonate crystals by the synergistic effect of silk fibroin/magnesium ions in a microbial system. CrystEngComm 2018. [DOI: 10.1039/c8ce00099a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The influence of silk fibroin (SF) and magnesium ions (Mg2+) on calcium carbonate (CaCO3) bio-mineralization has been investigated.
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Affiliation(s)
- Tao Chen
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- Southwest University of Science and Technology
- Mianyang 621010
- P.R. China
| | - Peiheng Shi
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- Southwest University of Science and Technology
- Mianyang 621010
- P.R. China
| | - Yi Li
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- Southwest University of Science and Technology
- Mianyang 621010
- P.R. China
| | - Tao Duan
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- Southwest University of Science and Technology
- Mianyang 621010
- P.R. China
| | - Yang Yu
- Mianyang People's Hospital
- Mianyang 621010
- P.R. China
| | - Xianyan Li
- State Key Laboratory of Environmentally Friendly Energy Materials
- Mianyang 621010
- P.R. China
| | - Wenkun Zhu
- Nuclear Waste and Environmental Safety Key Laboratory of Defense
- Southwest University of Science and Technology
- Mianyang 621010
- P.R. China
- State Key Laboratory of Environmentally Friendly Energy Materials
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18
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Li C, Yang M, Zhu L, Zhu Y. Honeysuckle flowers extract loaded Bombyx mori silk fibroin films for inducing apoptosis of HeLa cells. Microsc Res Tech 2017; 80:1297-1303. [PMID: 28841768 PMCID: PMC5763328 DOI: 10.1002/jemt.22928] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 08/08/2017] [Accepted: 08/08/2017] [Indexed: 01/30/2023]
Abstract
This study aimed to prepare silk fibroin (SF) films loaded with honeysuckle flowers extract (HFE) for inducing apoptosis of HeLa cells. We mixed solution of SF and HFE by air-drying for preparing the honeysuckle flowers extract loaded silk fibroin (SFH) films. The physical properties including morphologies, contact angle, roughness, and Z range were characterized. MTS assay and fluorescence micrographs proved that SFH films inhibited the proliferation rate of HeLa cells due to induction of HFE into SF films. Furthermore, cell apoptosis assay and cell cycle analysis confirmed that the apoptosis of HeLa cells resulted from SFH films. Therefore, SFH films designed in our study might be a promising candidate material for cancer therapy.
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Affiliation(s)
- Chenlin Li
- Institute of Applied Bioresource, College of Animal ScienceZhejiang UniversityHangzhou, Zhejiang 310058People's Republic of China
| | - Mingying Yang
- Institute of Applied Bioresource, College of Animal ScienceZhejiang UniversityHangzhou, Zhejiang 310058People's Republic of China
| | - Liangjun Zhu
- Institute of Applied Bioresource, College of Animal ScienceZhejiang UniversityHangzhou, Zhejiang 310058People's Republic of China
| | - Yongqiang Zhu
- Zhejiang Academy of Traditional Chinese MedicineHangzhou, Zhejiang 310058People's Republic of China
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Yang M, Shuai Y, Sunderland KS, Mao C. Ice-Templated Protein Nanoridges Induce Bone Tissue Formation. ADVANCED FUNCTIONAL MATERIALS 2017; 27:1703726. [PMID: 29657571 PMCID: PMC5898400 DOI: 10.1002/adfm.201703726] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Little is known about the role of biocompatible protein nanoridges in directing stem cell fate and tissue regeneration due to the difficulty in forming protein nanoridges. Here an ice-templating approach is proposed to produce semi-parallel pure silk protein nanoridges. The key to this approach is that water droplets formed in the protein films are frozen into ice crystals (removed later by sublimation), pushing the surrounding protein molecules to be assembled into nanoridges. Unlike the flat protein films, the unique protein nanoridges can induce the differentiation of human mesenchymal stem cells (MSCs) into osteoblasts without any additional inducers, as well as the formation of bone tissue in a subcutaneous rat model even when not seeded with MSCs. Moreover, the nanoridged films induce less inflammatory infiltration than the flat films in vivo. This work indicates that decorating biomaterials surfaces with protein nanoridges can enhance bone tissue formation in bone repair.
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Affiliation(s)
- Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Yajun Shuai
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Kegan S Sunderland
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK 73019-5300, USA
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK 73019-5300, USA
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Bhattacharjee P, Kundu B, Naskar D, Kim HW, Maiti TK, Bhattacharya D, Kundu SC. Silk scaffolds in bone tissue engineering: An overview. Acta Biomater 2017; 63:1-17. [PMID: 28941652 DOI: 10.1016/j.actbio.2017.09.027] [Citation(s) in RCA: 173] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 08/26/2017] [Accepted: 09/19/2017] [Indexed: 12/17/2022]
Abstract
Bone tissue plays multiple roles in our day-to-day functionality. The frequency of accidental bone damage and disorder is increasing worldwide. Moreover, as the world population continues to grow, the percentage of the elderly population continues to grow, which results in an increased number of bone degenerative diseases. This increased elderly population pushes the need for artificial bone implants that specifically employ biocompatible materials. A vast body of literature is available on the use of silk in bone tissue engineering. The current work presents an overview of this literature from materials and fabrication perspective. As silk is an easy-to-process biopolymer; this allows silk-based biomaterials to be molded into diverse forms and architectures, which further affects the degradability. This makes silk-based scaffolds suitable for treating a variety of bone reconstruction and regeneration objectives. Silk surfaces offer active sites that aid the mineralization and/or bonding of bioactive molecules that facilitate bone regeneration. Silk has also been blended with a variety of polymers and minerals to enhance its advantageous properties or introduce new ones. Several successful works, both in vitro and in vivo, have been reported using silk-based scaffolds to regenerate bone tissues or other parts of the skeletal system such as cartilage and ligament. A growing trend is observed toward the use of mineralized and nanofibrous scaffolds along with the development of technology that allows to control scaffold architecture, its biodegradability and the sustained releasing property of scaffolds. Further development of silk-based scaffolds for bone tissue engineering, taking them up to and beyond the stage of human trials, is hoped to be achieved in the near future through a cross-disciplinary coalition of tissue engineers, material scientists and manufacturing engineers. STATEMENT OF SIGNIFICANCE The state-of-art of silk biomaterials in bone tissue engineering, covering their wide applications as cell scaffolding matrices to micro-nano carriers for delivering bone growth factors and therapeutic molecules to diseased or damaged sites to facilitate bone regeneration, is emphasized here. The review rationalizes that the choice of silk protein as a biomaterial is not only because of its natural polymeric nature, mechanical robustness, flexibility and wide range of cell compatibility but also because of its ability to template the growth of hydroxyapatite, the chief inorganic component of bone mineral matrix, resulting in improved osteointegration. The discussion extends to the role of inorganic ions such as Si and Ca as matrix components in combination with silk to influence bone regrowth. The effect of ions or growth factor-loaded vehicle incorporation into regenerative matrix, nanotopography is also considered.
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Wang J, Yang S, Li C, Miao Y, Zhu L, Mao C, Yang M. Nucleation and Assembly of Silica into Protein-Based Nanocomposites as Effective Anticancer Drug Carriers Using Self-Assembled Silk Protein Nanostructures as Biotemplates. ACS APPLIED MATERIALS & INTERFACES 2017; 9:22259-22267. [PMID: 28665103 PMCID: PMC5759309 DOI: 10.1021/acsami.7b05664] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Bombyx mori (B. mori) silk fibroin and sericin can act as a great candidate in delivering drugs or other bioactive substances. Silica also has a great application in the field of drug delivery. To the best of our knowledge, there has been no report on the design of a nanocomposite made of silk protein and silica for drug delivery. Here, for the first time, we used B. mori silk fibroin (SF) and sericin (SS), self-assembled into nanospheres and nanofibers in situ in the aqueous solution, respectively, as a biotemplate to regulate the nucleation and self-assembly of silica for designing anticancer drug delivery. SF and SS mediated the nucleation and assembly of silica into monodispersed nanospheres (termed Si/SF) and nanofibers (termed Si/SS), respectively. The size and topography of the silica assemblies were dependent on the concentration of SF or SS as well as reaction conditions. Both Si/SF nanospheres and Si/SS nanofibers showed a high loading capability and sustained release profile of an anticancer drug, doxorubicin (DOX), in vitro. Si/SF nanospheres were found to be efficiently internalized in human cervical carcinoma (HeLa) cells and accumulate around the cell nuclei. Si/SS nanofibers could only adhere to the surface of the cancer cells. This indicates that DOX-loaded Si/SF nanospheres and Si/SS nanofibers are more effective in cancer therapy than free DOX. Our results suggest that the self-assembled Si/SF spheres and Si/SS nanofibers are potential effective anticancer drug carriers.
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Affiliation(s)
- Jie Wang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Shuxu Yang
- Department of Neurosurgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Chenlin Li
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Yungen Miao
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Liangjun Zhu
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Chuanbin Mao
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019-5251, United States
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
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Shuai Y, Yang S, Li C, Zhu L, Mao C, Yang M. In situ protein-templated porous protein-hydroxylapatite nanocomposite microspheres for pH-dependent sustained anticancer drug release. J Mater Chem B 2017; 5:3945-3954. [PMID: 29152304 PMCID: PMC5687098 DOI: 10.1039/c7tb00208d] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Silk sericin, a water-soluble glue-like protein, is extensively used as a biomaterial due to its biocompatibility, hydrophilicity, biodegradability, and adequate resource. In addition, hydroxyapatite-based drug carriers are functionally efficient for drug or gene delivery due to their biodegradability, biocompatibility and easy metabolism in vivo. Herein, for the first time, this study used sericin, from a wild silkworm called Antheraea pernyi (A. pernyi), as a template to nucleate hydroxylapatite (HAp) nano-needles and form porous sericin-HAp nanocomposite microspheres as an anticancer drug carrier. Specifically, A. pernyi sericin (AS) was incubated in 1.5× simulated body fluid to induce the formation of porous AS/HAp microspheres in situ. Doxorubicin (DOX) loading and release assays proved that the microspheres exhibited pH-dependent controlled and sustained release of DOX. In particular, the microspheres can selectively release DOX at a higher rate at the acidic conditions typical for tumor microenvironment than at the physiological conditions typical for normal tissues, which will potentially reduce the side effect of the cancer drugs in normal tissues. Cancer cell toxicity assay, cancer cell imaging and intracellular DOX distribution assay provided further evidence to support the pH-dependent controlled and sustained release of DOX to cancer cells from the microspheres. Our work has demonstrated a biomimetic strategy for the design and synthesis of silk protein-based drug carriers that can be potentially employed in drug delivery and regenerative medicine.
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Affiliation(s)
- Yajun Shuai
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
- Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK 73019-5251, USA
| | - Shuxu Yang
- Department of Neurosurgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Chenlin Li
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Liangjun Zhu
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Chuanbin Mao
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, OK 73019-5251, USA
| | - Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
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Jiayao Z, Guanshan Z, Jinchi Z, Yuyin C, Yongqiang Z. Antheraea pernyisilk sericin mediating biomimetic nucleation and growth of hydroxylapatite crystals promoting bone matrix formation. Microsc Res Tech 2016; 80:305-311. [DOI: 10.1002/jemt.22793] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 09/21/2016] [Accepted: 09/27/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Zhuang Jiayao
- Co-Innovation Center for Sustainable Forestry in Southern China; Nanjing Forestry University; Nanjing 210039 People's Republic of China
| | - Zhou Guanshan
- Institute of Applied Bioresources, College of Animal Sciences, Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Zhang Jinchi
- Co-Innovation Center for Sustainable Forestry in Southern China; Nanjing Forestry University; Nanjing 210039 People's Republic of China
| | - Chen Yuyin
- Institute of Applied Bioresources, College of Animal Sciences, Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Zhu Yongqiang
- Zhejiang Academy of Traditional Chinese Medicine; Hangzhou 310007 People's Republic of China
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Midha S, Tripathi R, Geng H, Lee PD, Ghosh S. Elucidation of differential mineralisation on native and regenerated silk matrices. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:663-674. [DOI: 10.1016/j.msec.2016.06.041] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/16/2016] [Accepted: 06/12/2016] [Indexed: 02/02/2023]
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25
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Kumar S, Singh SK. Fabrication and characterization of fibroin solution and nanoparticle from silk fibers ofBombyx mori. PARTICULATE SCIENCE AND TECHNOLOGY 2016. [DOI: 10.1080/02726351.2016.1154908] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sandeep Kumar
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Ranchi, Jharkhand, India
| | - Sandeep Kumar Singh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Ranchi, Jharkhand, India
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26
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Zhao F, Yao D, Guo R, Deng L, Dong A, Zhang J. Composites of Polymer Hydrogels and Nanoparticulate Systems for Biomedical and Pharmaceutical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:2054-2130. [PMID: 28347111 PMCID: PMC5304774 DOI: 10.3390/nano5042054] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 11/18/2015] [Accepted: 11/20/2015] [Indexed: 12/25/2022]
Abstract
Due to their unique structures and properties, three-dimensional hydrogels and nanostructured particles have been widely studied and shown a very high potential for medical, therapeutic and diagnostic applications. However, hydrogels and nanoparticulate systems have respective disadvantages that limit their widespread applications. Recently, the incorporation of nanostructured fillers into hydrogels has been developed as an innovative means for the creation of novel materials with diverse functionality in order to meet new challenges. In this review, the fundamentals of hydrogels and nanoparticles (NPs) were briefly discussed, and then we comprehensively summarized recent advances in the design, synthesis, functionalization and application of nanocomposite hydrogels with enhanced mechanical, biological and physicochemical properties. Moreover, the current challenges and future opportunities for the use of these promising materials in the biomedical sector, especially the nanocomposite hydrogels produced from hydrogels and polymeric NPs, are discussed.
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Affiliation(s)
- Fuli Zhao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Dan Yao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Ruiwei Guo
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Liandong Deng
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Anjie Dong
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Jianhua Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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27
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Mottaghitalab F, Hosseinkhani H, Shokrgozar MA, Mao C, Yang M, Farokhi M. Silk as a potential candidate for bone tissue engineering. J Control Release 2015; 215:112-28. [DOI: 10.1016/j.jconrel.2015.07.031] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 07/28/2015] [Accepted: 07/29/2015] [Indexed: 02/07/2023]
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Jin Y, Kundu B, Cai Y, Kundu SC, Yao J. Bio-inspired mineralization of hydroxyapatite in 3D silk fibroin hydrogel for bone tissue engineering. Colloids Surf B Biointerfaces 2015. [DOI: 10.1016/j.colsurfb.2015.07.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Sujana A, Venugopal JR, Velmurugan B, Góra A, Salla M, Ramakrishna S. Hydroxyapatite-intertwined hybrid nanofibres for the mineralization of osteoblasts. J Tissue Eng Regen Med 2015; 11:1853-1864. [DOI: 10.1002/term.2083] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/03/2015] [Accepted: 07/08/2015] [Indexed: 01/12/2023]
Affiliation(s)
- Andra Sujana
- Centre for Nanofibres and Nanotechnology, Mechanical Engineering, Faculty of Engineering; National University of Singapore
| | - Jayarama Reddy Venugopal
- Centre for Nanofibres and Nanotechnology, Mechanical Engineering, Faculty of Engineering; National University of Singapore
| | - Bhaarathy Velmurugan
- Centre for Nanofibres and Nanotechnology, Mechanical Engineering, Faculty of Engineering; National University of Singapore
| | - Aleksander Góra
- Centre for Nanofibres and Nanotechnology, Mechanical Engineering, Faculty of Engineering; National University of Singapore
| | - Manohar Salla
- Institute for Molecular Bioscience, Queensland Bioscience Precinct; University of Queensland; Brisbane Australia
| | - Seeram Ramakrishna
- Centre for Nanofibres and Nanotechnology, Mechanical Engineering, Faculty of Engineering; National University of Singapore
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Yang M, Zhou G, Shuai Y, Wang J, Zhu L, Mao C. Ca 2+-induced self-assembly of Bombyx mori silk sericin into a nanofibrous network-like protein matrix for directing controlled nucleation of hydroxylapatite nano-needles. J Mater Chem B 2015; 3:2455-2462. [PMID: 26029374 DOI: 10.1039/c4tb01944j] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Bone biomineralization is a well-regulated protein-mediated process where hydroxylapatite (HAP) crystals are nucleated with preferred orientation within self-assembled protein matrix. Mimicking this process is a promising approach to the production of bone-like protein/mineral nanocomposites for bone repair and regeneration. Towards the goal of fabricating such nanocomposites from sericin, a protein spun by Bombyx mori (B.mori) silkworm, and bone mineral HAP, for the first time we investigated the chemical mechanism underpinning the synergistic processes of the conformational change/self-assembly of B.mori sericin ( BS ) as well as the nucleation of HAP on the resultant self-assembled BS matrix. We found that BS , rich in anionic amino acid residues, could bind Ca2+ ions from the HAP precursor solution through electrostatic attraction. The Ca2+binding drove the conformational change of BS from random coils into β-sheets and its concomitant self-assembly into interconnected nanofibrous network-like protein matrix, which initiated the nucleation and growth of HAP crystals. HAP crystals directed by the resultant self-assembled BS matrix grew preferentially along their crystallographic c-axis, leading to the formation of HAP nano-needles. The HAP nano-needles in the self-assembled BS matrix were subsequently aggregated into globules, probably driven by the hydrogen bonding between C=O groups of BS and O-H groups of HAP nano-needles. The present work sheds light on the chemical mechanisms of BS self-assembly and the controlled mineralization directed by the self-assembled matrix. We also found that the resultant nanocomposites could promote the osteogenic differentiation of human bone marrow-derived mesenchymal stem cells. Thus our work also generates a biomimetic approach to bone-like silk protein/mineral nanocomposite scaffolds that can find potential applications in bone repair and regeneration.
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Affiliation(s)
- Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang 310058, China
| | - Guanshan Zhou
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang 310058, China
| | - Yajun Shuai
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang 310058, China
| | - Jie Wang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang 310058, China
| | - Liangjun Zhu
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, Zhejiang 310058, China
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019-5300, United States
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Lin K, Wu C, Chang J. Advances in synthesis of calcium phosphate crystals with controlled size and shape. Acta Biomater 2014; 10:4071-102. [PMID: 24954909 DOI: 10.1016/j.actbio.2014.06.017] [Citation(s) in RCA: 206] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 06/06/2014] [Accepted: 06/11/2014] [Indexed: 01/02/2023]
Abstract
Calcium phosphate (CaP) materials have a wide range of applications, including biomaterials, adsorbents, chemical engineering materials, catalysts and catalyst supports and mechanical reinforcements. The size and shape of CaP crystals and aggregates play critical roles in their applications. The main inorganic building blocks of human bones and teeth are nanocrystalline CaPs; recently, much progress has been made in the application of CaP nanocrystals and their composites for clinical repair of damaged bone and tooth. For example, CaPs with special micro- and nanostructures can better imitate the biomimetic features of human bone and tooth, and this offers significantly enhanced biological performances. Therefore, the design of CaP nano-/microcrystals, and the shape and hierarchical structures of CaPs, have great potential to revolutionize the field of hard tissue engineering, starting from bone/tooth repair and augmentation to controlled drug delivery devices. Previously, a number of reviews have reported the synthesis and properties of CaP materials, especially for hydroxyapatite (HAp). However, most of them mainly focused on the characterizations and physicochemical and biological properties of HAp particles. There are few reviews about the control of particle size and size distribution of CaPs, and in particular the control of nano-/microstructures on bulk CaP ceramic surfaces, which is a big challenge technically and may have great potential in tissue engineering applications. This review summarizes the current state of the art for the synthesis of CaP crystals with controlled sizes from the nano- to the macroscale, and the diverse shapes including the zero-dimensional shapes of particles and spheres, the one-dimensional shapes of rods, fibers, wires and whiskers, the two-dimensional shapes of sheets, disks, plates, belts, ribbons and flakes and the three-dimensional (3-D) shapes of porous, hollow, and biomimetic structures similar to biological bone and tooth. In addition, this review will also summarize studies on the controlled formation of nano-/microstructures on the surface of bulk ceramics, and the preparation of macroscopical bone grafts with 3-D architecture nano-/microstructured surfaces. Moreover, the possible directions of future research and development in this field, such as the detailed mechanisms behind the size and shape control in various strategies, the importance of theoretical simulation, self-assembly, biomineralization and sacrificial precursor strategies in the fabrication of biomimetic bone-like and enamel-like CaP materials are proposed.
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Affiliation(s)
- Kaili Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.
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Yang M, Shuai Y, Zhou G, Mandal N, Zhu L, Mao C. Tuning molecular weights of Bombyx mori (B. mori) silk sericin to modify its assembly structures and materials formation. ACS APPLIED MATERIALS & INTERFACES 2014; 6:13782-9. [PMID: 25050697 PMCID: PMC4149330 DOI: 10.1021/am503214g] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Bombyx mori (B. mori) silk sericin is a protein with features desirable as a biomaterial, such as increased hydrophilicity and biodegradation, as well as resistance to oxidation, bacteria, and ultraviolet light. In contrast to other widely studied B. mori silk proteins such as fibroin, sericin is still unexplored as a building block for fabricating biomaterial, and thus a facile technique of processing it into a material is needed. Here, electrospinning technology was used to fabricate it into biomaterials from two forms of B. mori silk sericin with different molecular weights, one is a low (12.0 kDa) molecular sericin (LS) form and another is a high (66.0 kDa) molecular weight sericin (HS) form. Circular dichroism (CD) spectra showed that LS in hexafluoroacetone (HFA) solvent adopted a predominantly random coil conformation, whereas HS tended to form a β-sheet structure along with a large content of random coils. In addition, LS and HS in HFA solvent were found to form cylinder-like smaller nanoparticles and larger irregular aggregates before electrospinning, respectively. As a result, biomaterials based on microparticles and nanofibers were successfully fabricated by electrospinning of LS and HS dissolved in HFA, respectively. The cell viability and differentiation assay indicated that nanofibers and microparticles improved cell adhesion, growth, and differentiation, proving that the scaffolds electrospun from sericin are biocompatible regardless of its molecular weight. The microparticles, not common in electrospinning of silk proteins reported previously, were found to promote the osteogenic differentiation of mesenchymal stem cells in comparison to the nanofibers. This study suggested that molecular weight of sericin mediates its secondary structure and assembly structure, which in turn leads to a control of final morphology of the electrospun materials. The microparticles and nanofibers of sericin can be potentially used as building blocks for fabricating the scaffolds for tissue engineering.
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Affiliation(s)
- Mingying Yang
- Institute of Applied
Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, China
- E-mail: (M.Y.)
| | - Yajun Shuai
- Institute of Applied
Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, China
| | - Guanshan Zhou
- Institute of Applied
Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, China
| | - Namita Mandal
- Institute of Applied
Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, China
| | - Liangjun Zhu
- Institute of Applied
Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058 Zhejiang, China
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Sciences
Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019-5300, United States
- E-mail: (C.M.)
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Yang M, Shuai Y, Zhang C, Chen Y, Zhu L, Mao C, OuYang H. Biomimetic nucleation of hydroxyapatite crystals mediated by Antheraea pernyi silk sericin promotes osteogenic differentiation of human bone marrow derived mesenchymal stem cells. Biomacromolecules 2014; 15:1185-93. [PMID: 24666022 PMCID: PMC3993896 DOI: 10.1021/bm401740x] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
![]()
Biomacromolecules have been used
as templates to grow hydroxyapatite
crystals (HAps) by biomineralization to fabricate mineralized materials
for potential application in bone tissue engineering. Silk sericin
is a protein with features desirable as a biomaterial, such as increased
hydrophilicity and biodegradation. Mineralization of the silk sericin
from Antheraea pernyi (A. pernyi) silkworm has rarely been reported. Here,
for the first time, nucleation of HAps on A. pernyi silk sericin (AS) was attempted through a wet precipitation method
and consequently the cell viability and osteogenic differentiation
of BMSCs on mineralized AS were investigated. It was found that AS
mediated the nucleation of HAps in the form of nanoneedles while self-assembling
into β-sheet conformation, leading to the formation of a biomineralized
protein based biomaterial. The cell viability assay of BMSCs showed
that the mineralization of AS stimulated cell adhesion and proliferation,
showing that the resultant AS biomaterial is biocompatible. The differentiation
assay confirmed that the mineralized AS significantly promoted the
osteogenic differentiation of BMSCs when compared to nonmineralized
AS as well as other types of sericin (B. mori sericin), suggesting that the resultant mineralized AS biomaterial
has potential in promoting bone formation. This result represented
the first work proving the osteogenic differentiation of BMSCs directed
by silk sericin. Therefore, the biomineralization of A. pernyi silk sericin coupled with seeding BMSCs
on the resultant mineralized biomaterials is a useful strategy to
develop the potential application of this unexplored silk sericin
in the field of bone tissue engineering. This study lays the foundation
for the use of A. pernyi silk sericin
as a potential scaffold for tissue engineering.
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Affiliation(s)
- Mingying Yang
- Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University , Yuhangtang Road 866, Hangzhou, 310058, China
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Sheikh FA, Ju HW, Moon BM, Park HJ, Kim JH, Lee OJ, Park CH. A novel approach to fabricate silk nanofibers containing hydroxyapatite nanoparticles using a three-way stopcock connector. NANOSCALE RESEARCH LETTERS 2013; 8:303. [PMID: 23816050 PMCID: PMC3750300 DOI: 10.1186/1556-276x-8-303] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 06/18/2013] [Indexed: 06/02/2023]
Abstract
Electrospinning technique is commonly used to produce micro- and/or nanofibers, which utilizes electrical forces to produce polymeric fibers with diameters ranging from several micrometers down to few nanometers. Desirably, electrospun materials provide highly porous structure and appropriate pore size for initial cell attachment and proliferation and thereby enable the exchange of nutrients. Composite nanofibers consisting of silk and hydroxyapatite nanoparticles (HAp) (NPs) had been considered as an excellent choice due to their efficient biocompatibility and bone-mimicking properties. To prepare these nanofiber composites, it requires the use of acidic solutions which have serious consequences on the nature of both silk and HAp NPs. It is ideal to create these nanofibers using aqueous solutions in which the physicochemical nature of both materials can be retained. However, to create those nanofibers is often difficult to obtain because of the fact that aqueous solutions of silk and HAp NPs can precipitate before they can be ejected into fibers during the electrospinning process. In this work, we had successfully used a three-way stopcock connector to mix the two different solutions, and very shortly, this solution is ejected out to form nanofibers due to electric fields. Different blend ratios consisting HAp NPs had been electrospun into nanofibers. The physicochemical aspects of fabricated nanofiber had been characterized by different state of techniques like that of FE-SEM, EDS, TEM, TEM-EDS, TGA, FT-IR, and XRD. These characterization techniques revealed that HAp NPs can be easily introduced in silk nanofibers using a stopcock connector, and this method favorably preserves the intact nature of silk fibroin and HAp NPs. Moreover, nanofibers obtained by this strategy were tested for cell toxicity and cell attachment studies using NIH 3 T3 fibroblasts which indicated non-toxic behavior and good attachment of cells upon incubation in the presence of nanofibers.
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Affiliation(s)
- Faheem A Sheikh
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
- Department of Chemistry, University of Texas-Pan American, Edinburg, Texas 78539, USA
| | - Hyung Woo Ju
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Bo Mi Moon
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Hyun Jung Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Jung Ho Kim
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Ok Joo Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Chan Hum Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Hallym University, Chuncheon 200-702, South Korea
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