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Morena AG, Pérez-Rafael S, Tzanov T. Lignin-Based Nanoparticles as Both Structural and Active Elements in Self-Assembling and Self-Healing Multifunctional Hydrogels for Chronic Wound Management. Pharmaceutics 2022; 14:pharmaceutics14122658. [PMID: 36559153 PMCID: PMC9781249 DOI: 10.3390/pharmaceutics14122658] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/25/2022] [Accepted: 11/26/2022] [Indexed: 12/02/2022] Open
Abstract
Efficient wound healing is feasible when the dressing materials simultaneously target multiple factors causing wound chronicity, such as deleterious proteolytic and oxidative enzymes and bacterial infection. Herein, entirely bio-based multifunctional self-assembled hydrogels for wound healing were developed by simply mixing two biopolymers, thiolated hyaluronic acid (HA-SH) and silk fibroin (SF), with lignin-based nanoparticles (NPs) as both structural and functional elements. Sono-enzymatic lignin modification with natural phenolic compounds results in antibacterial and antioxidant phenolated lignin nanoparticles (PLN) capable of establishing multiple interactions with both polymers. These strong and dynamic polymer-NP interactions endow the hydrogels with self-healing and shear-thinning properties, and pH-responsive NP release is triggered at neutral to alkaline pH (7-9). Despite being a physically crosslinked hydrogel, the material was stable for at least 7 days, and its mechanical and functional properties can be tuned depending on the polymer and NP concentration. Furthermore, human skin cells in contact with the nanocomposite hydrogels for 7 days showed more than 93% viability, while the viability of clinically relevant Staphylococcus aureus and Pseudomonas aeruginosa was reduced by 99.7 and 99.0%, respectively. The hydrogels inhibited up to 52% of the activity of myeloperoxidase and matrix metalloproteinases, responsible for wound chronicity, and showed a strong antioxidant effect, which are crucial features promoting wound healing.
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Reizabal A, Costa CM, Saiz PG, Gonzalez B, Pérez-Álvarez L, Fernández de Luis R, Garcia A, Vilas-Vilela JL, Lanceros-Méndez S. Processing Strategies to Obtain Highly Porous Silk Fibroin Structures with Tailored Microstructure and Molecular Characteristics and Their Applicability in Water Remediation. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123675. [PMID: 32846265 DOI: 10.1016/j.jhazmat.2020.123675] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
The present work reports on the control of silk fibroin (SF) porous structures performance through various processing methods. The study includes the analysis of two dissolving techniques (CaCl2/H2O/EtOH ternary and LiBr/H2O binary solutions), three regeneration methods (gelation, lyophilization and gas foaming) and one post-processing (EtOH). In all the cases, followed steps lead to SF structures with porosity values above 94% and large surface areas. Also, results about samples microstructure, secondary organization, crystallinity and water behavior, reveal a direct correlation between processing and SF properties. Thanks to the achieved progress, the SF varying porous structures were evaluated for metalloids (As5+ and As3+) and heavy metals (Cr6+ and Cr3+) adsorption, observing a direct relationship between samples processing and ionic species adsorption ability. Thus, it is shown that the control of the properties of SF based porous structures through processing, represents a suitable and ecofriendly approach for the development of bio-based materials for environmental applications.
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Affiliation(s)
- A Reizabal
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain; Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco/EHU, Apdo. 644, Bilbao, Spain.
| | - C M Costa
- Centro de Física, Universidade do Minho, 4710-057, Braga, Portugal; Centro de Química, Universidade do Minho, 4710-057, Braga, Portugal
| | - P G Saiz
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain
| | - B Gonzalez
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Av. Tupper 2007, Santiago, 8370451, Chile
| | - L Pérez-Álvarez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain; Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco/EHU, Apdo. 644, Bilbao, Spain
| | - R Fernández de Luis
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain
| | - A Garcia
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Av. Tupper 2007, Santiago, 8370451, Chile
| | - J L Vilas-Vilela
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain; Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco/EHU, Apdo. 644, Bilbao, Spain
| | - S Lanceros-Méndez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain; Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Spain
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Nangare S, Dugam S, Patil P, Tade R, Jadhav N. Silk industry waste protein: isolation, purification and fabrication of electrospun silk protein nanofibers as a possible nanocarrier for floating drug delivery. NANOTECHNOLOGY 2021; 32:035101. [PMID: 32932237 DOI: 10.1088/1361-6528/abb8a9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Amongst assorted regio-selective and targeted oral drug delivery strategies accepted for the gastro-retentive drug delivery system (GRDDS), the floating drug delivery system (FDDS) holds a major share as clinically accepted formulations. The major objective of the present investigation was to explore the silk industry waste protein, silk fibroin (SF) as a possible electrospun nanocarrier for the FDDS. In a nutshell, electrospinning (ES) is one of the flexible and astonishing strategies for the fabrication of porous electrospun nanofibers (NFs), which offers the potential to amend the floating profile, dissolution rate, solubility, and release patterns of the drug, etc as per compendial requirements. Looking at the prospects of floating SF-NFs preparation, we have isolated and lyophilized the SF from industrial waste cocoons and prepared drug-loaded SF single polymer nanofibers (SPN). Lafutidine (LF) being a good candidate for GRDDS selected as a model drug, which is an excellent proton pump inhibitor, mainly used in the treatment of gastric ulcers. Finally, the obtained LF loaded SF-NFs (LF-SF-NFs) were successfully analyzed for physicochemical characteristics, porosity, swelling index, antioxidant activity, mucoadhesion strength, floating properties, enzymatic degradation, and accelerated stability study, etc. Further, these LF-SF-NFs were evaluated for percent drug content, weight variation, in-vitro dissolution in 0.1 N hydrochloric acid (HCl, pH:1.2) and fasted state simulated gastric fluid (FSSGF), and accelerated stability study. It has shown significant floating time >18 h, about 99% ± 0.58% floating buoyancy with sustained release up to 24 h. LF-SF-NFs showed good compatibility, entrapment efficiency, antioxidant activity, mucoadhesion strength, enzymatic degradation, and long term stability. Soon, the essential floating and drug release profiles can claim single polymer (SF) based electrospun protein NFs as a possible novel oral nanocarrier for FDDS.
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Affiliation(s)
- Sopan Nangare
- Department of Pharmaceutics, Bharati Vidyapeeth College of Pharmacy, Kolhapur, Maharashtra 416013, India
| | - Shailesh Dugam
- Department of Pharmaceutics, Bharati Vidyapeeth College of Pharmacy, Kolhapur, Maharashtra 416013, India
| | - Pravin Patil
- Department of Pharmaceutical Chemistry, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra 425405, India
| | - Rahul Tade
- Department of Pharmaceutical Chemistry, H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra 425405, India
| | - Namdeo Jadhav
- Department of Pharmaceutics, Bharati Vidyapeeth College of Pharmacy, Kolhapur, Maharashtra 416013, India
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Wang Y, Li Y, Yu X, Long Q, Zhang T. Synthesis of a photocurable acrylated poly(ethylene glycol)-co-poly(xylitol sebacate) copolymers hydrogel 3D printing ink for tissue engineering. RSC Adv 2019; 9:18394-18405. [PMID: 35515220 PMCID: PMC9064739 DOI: 10.1039/c9ra03637g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 05/30/2019] [Indexed: 02/05/2023] Open
Abstract
Photocurable hydrogel scaffolds for tissue engineering must have excellent biocompatibility, tunable mechanical characteristics, and be biodegradable at a controllable rate. Hydrogels developed as ink for 3D printing require several other properties such as optimal viscosity and shorter photocrosslinking time to ensure continuous extrusion and to avoid untimely collapse of the printed structure. Here, a novel photocurable hydrogel made of acrylated poly(ethylene glycol)-co-poly(xylitol sebacate) (PEXS-A) is developed for tissue engineering and 3D printing applications. Synthesis of PEXS-A hydrogel with equilibrated water content above 90% is achieved via a quick and facile photopolymerization process. Changing the acrylation ratio of the PEXS-A hydrogel has an impact on its crosslinking density, mechanical properties and degradation rate, thus highlighting PEXS-A tunability. PEXS-A could be employed as ink as demonstrated by the 3D printing of a 30-layers cubic grid with high structural integrity. Furthermore, 3T3 fibroblast cells encapsulated into PEXS-A during photocrosslinking maintain a viability of 93.76% after seven days, which showed the good biocompatibility of this novel hydrogel. These results indicate that PEXS-A hydrogel could have multiple applications including as 3D printing ink and as tissue engineering scaffold. A novel acrylated poly(ethylene glycol)-co-poly(xylitol sebacate) (PEXS-A) hydrogel for 3D printing ink and cell encapsulation for tissue engineering application.![]()
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Affiliation(s)
- Yicai Wang
- School of Chemistry, Chemical Engineering and Life Science
- Wuhan University of Technology
- Wuhan
- China
| | - Yuan Li
- School of Chemistry, Chemical Engineering and Life Science
- Wuhan University of Technology
- Wuhan
- China
| | - Xiaoling Yu
- School of Chemistry, Chemical Engineering and Life Science
- Wuhan University of Technology
- Wuhan
- China
| | - Qizhi Long
- School of Chemistry, Chemical Engineering and Life Science
- Wuhan University of Technology
- Wuhan
- China
| | - Tian Zhang
- School of Chemistry, Chemical Engineering and Life Science
- Wuhan University of Technology
- Wuhan
- China
- State Key Laboratory of Silicate Materials for Architectures
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Landry MJ, Rollet FG, Kennedy TE, Barrett CJ. Layers and Multilayers of Self-Assembled Polymers: Tunable Engineered Extracellular Matrix Coatings for Neural Cell Growth. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:8709-8730. [PMID: 29481757 DOI: 10.1021/acs.langmuir.7b04108] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Growing primary cells and tissue in long-term cultures, such as primary neural cell culture, presents many challenges. A critical component of any environment that supports neural cell growth in vivo is an appropriate 2-D surface or 3-D scaffold, typically in the form of a thin polymer layer that coats an underlying plastic or glass substrate and aims to mimic critical aspects of the extracellular matrix. A fundamental challenge to mimicking a hydrophilic, soft natural cell environment is that materials with these properties are typically fragile and are difficult to adhere to and stabilize on an underlying plastic or glass cell culture substrate. In this review, we highlight the current state of the art and overview recent developments of new artificial extracellular matrix (ECM) surfaces for in vitro neural cell culture. Notably, these materials aim to strike a balance between being hydrophilic and soft while also being thick, stable, robust, and bound well to the underlying surface to provide an effective surface to support long-term cell growth. We focus on improved surface and scaffold coating systems that can mimic the natural physicochemical properties that enhance neuronal survival and growth, applied as soft hydrophilic polymer coatings for both in vitro cell culture and for implantable neural probes and 3-D matrixes that aim to enhance stability and longevity to promote neural biocompatibility in vivo. With respect to future developments, we outline four emerging principles that serve to guide the development of polymer assemblies that function well as artificial ECMs: (a) design inspired by biological systems and (b) the employment of principles of aqueous soft bonding and self-assembly to achieve (c) a high-water-content gel-like coating that is stable over time in a biological environment and possesses (d) a low modulus to more closely mimic soft, compliant real biological tissue. We then highlight two emerging classes of thick material coatings that have successfully captured these guiding principles: layer-by-layer deposited water-soluble polymers (LbL) and silk fibroin (SF) materials. Both materials can be deposited from aqueous solution yet transition to a water-insoluble coating for long-term stability while retaining a softness and water content similar to those of biological materials. These materials hold great promise as next-generation biocompatible coatings for tissue engineers and for chemists and biologists within the biomedical field.
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6
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Fabrication of porous three-dimensional fibroin structures through a freezing process. J Appl Polym Sci 2018. [DOI: 10.1002/app.46537] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Abbah SA, Delgado LM, Azeem A, Fuller K, Shologu N, Keeney M, Biggs MJ, Pandit A, Zeugolis DI. Harnessing Hierarchical Nano- and Micro-Fabrication Technologies for Musculoskeletal Tissue Engineering. Adv Healthc Mater 2015; 4:2488-99. [PMID: 26667589 DOI: 10.1002/adhm.201500004] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 06/24/2015] [Indexed: 12/14/2022]
Abstract
Cells within a tissue are able to perceive, interpret and respond to the biophysical, biomechanical, and biochemical properties of the 3D extracellular matrix environment in which they reside. Such stimuli regulate cell adhesion, metabolic state, proliferation, migration, fate and lineage commitment, and ultimately, tissue morphogenesis and function. Current scaffold fabrication strategies in musculoskeletal tissue engineering seek to mimic the sophistication and comprehensiveness of nature to develop hierarchically assembled 3D implantable devices of different geometric dimensions (nano- to macrometric scales) that will offer control over cellular functions and ultimately achieve functional regeneration. Herein, advances and shortfalls of bottom-up (self-assembly, freeze-drying, rapid prototype, electrospinning) and top-down (imprinting) scaffold fabrication approaches, specific to musculoskeletal tissue engineering, are discussed and critically assessed.
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Affiliation(s)
- Sunny A. Abbah
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Centre for Research in Medical Devices (CURAM); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
| | - Luis M. Delgado
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Centre for Research in Medical Devices (CURAM); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
| | - Ayesha Azeem
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Centre for Research in Medical Devices (CURAM); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
| | - Kieran Fuller
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Centre for Research in Medical Devices (CURAM); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
| | - Naledi Shologu
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Centre for Research in Medical Devices (CURAM); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
| | - Michael Keeney
- Department of Orthopaedic Surgery; Stanford School of Medicine; Stanford University CA USA
| | - Manus J. Biggs
- Network of Excellence for Functional Biomaterials (NFB); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Centre for Research in Medical Devices (CURAM); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
| | - Abhay Pandit
- Network of Excellence for Functional Biomaterials (NFB); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Centre for Research in Medical Devices (CURAM); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
| | - Dimitrios I. Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Network of Excellence for Functional Biomaterials (NFB); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
- Centre for Research in Medical Devices (CURAM); Biosciences Research Building; National University of Ireland Galway (NUI Galway); Galway Ireland
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Kambe Y, Kojima K, Tamada Y, Tomita N, Kameda T. Silk fibroin sponges with cell growth-promoting activity induced by genetically fused basic fibroblast growth factor. J Biomed Mater Res A 2015; 104:82-93. [PMID: 26190702 DOI: 10.1002/jbm.a.35543] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 06/30/2015] [Accepted: 07/14/2015] [Indexed: 11/12/2022]
Abstract
Transgenic silkworm technology has enabled the biological properties of silk fibroin protein to be altered by fusion to recombinant bioactive proteins. However, few studies have reported the fabrication of genetically modified fibroin proteins into three-dimensional spongy structures to serve as scaffolds for tissue engineering. We generated a transgenic silkworm strain that produces fibroin fused to basic fibroblast growth factor (bFGF) and processed the fibroin into a spongy structure using a simple freeze/thaw method. NIH3T3 mouse embryonic fibroblasts grown on bFGF-fused fibroin sponges proliferated and spread out well, showing half the population doubling time of cells cultured on wild-type fibroin sponges. Furthermore, the number of primary rabbit articular chondrocytes growing on bFGF-fused fibroin sponges was around five-times higher than that of the wild-type control at 3-days post cell-seeding. As the physical properties of wild-type and bFGF-fused fibroin sponges were almost identical, it is suggested that bFGF fused to fibroin retained its biological activity, even after the bFGF-fused fibroin was fabricated into the spongy structure. The bFGF-fused fibroin sponge has the potential for widespread application in the field of tissue engineering, and the method of fabricating this structure could be applicable to other recombinant bioactive fibroin proteins.
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Affiliation(s)
- Yusuke Kambe
- Silk Materials Research Unit, National Institute of Agrobiological Sciences (NIAS), 1-2 Owashi, Tsukuba, Ibaraki, 305-8634, Japan
| | - Katsura Kojima
- Silk Materials Research Unit, National Institute of Agrobiological Sciences (NIAS), 1-2 Owashi, Tsukuba, Ibaraki, 305-8634, Japan
| | - Yasushi Tamada
- Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano, 386-8567, Japan
| | - Naohide Tomita
- Department of Mechanical Engineering and Science, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-Ku, Kyoto, 615-8540, Japan
| | - Tsunenori Kameda
- Silk Materials Research Unit, National Institute of Agrobiological Sciences (NIAS), 1-2 Owashi, Tsukuba, Ibaraki, 305-8634, Japan
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Byette F, Pellerin C, Marcotte I. Self-assembled pH-responsive films prepared from mussel anchoring threads. J Mater Chem B 2014; 2:6378-6386. [DOI: 10.1039/c4tb01021c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Pawelec K, Husmann A, Best S, Cameron R. Understanding anisotropy and architecture in ice-templated biopolymer scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 37:141-7. [DOI: 10.1016/j.msec.2014.01.009] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 11/29/2013] [Accepted: 01/05/2014] [Indexed: 11/16/2022]
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Wang X, Sang L, Wei Z, Zhai L, Wang H, Song K, Qi M. Facile preparation and cytocompatibility of poly(lactic acid)/poly(3-hydroxybutyrate-co-4-hydroxybutyrate) hybrid fibrous scaffolds. POLYM ENG SCI 2014. [DOI: 10.1002/pen.23851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xinhui Wang
- School of Materials Science and Engineering; Dalian University of Technology; Dalian 116024 China
| | - Lin Sang
- School of Materials Science and Engineering; Dalian University of Technology; Dalian 116024 China
| | - Zhiyong Wei
- Department of Polymer Science and Materials; Dalian University of Technology; Dalian 116024 China
| | - Lijie Zhai
- First Affiliated Hospital of Dalian Medical University; Dalian 116011 China
| | - Hong Wang
- First Affiliated Hospital of Dalian Medical University; Dalian 116011 China
| | - Kedong Song
- Dalian R&D Center for Stem Cell and Tissue Engineering; State Key Laboratory of Fine Chemicals, Dalian University of Technology; Dalian 116024 China
| | - Min Qi
- School of Materials Science and Engineering; Dalian University of Technology; Dalian 116024 China
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Srisa-Ard M, Baimark Y. Controlling Conformational Transition of Silk Fibroin Microspheres by Water Vapor for Controlled Release Drug Delivery. PARTICULATE SCIENCE AND TECHNOLOGY 2013. [DOI: 10.1080/02726351.2013.766289] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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13
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Arnold AA, Byette F, Séguin-Heine MO, LeBlanc A, Sleno L, Tremblay R, Pellerin C, Marcotte I. Solid-State NMR Structure Determination of Whole Anchoring Threads from the Blue Mussel Mytilus edulis. Biomacromolecules 2012; 14:132-41. [DOI: 10.1021/bm301493u] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Alexandre A. Arnold
- Department of Chemistry, Université du Québec à Montréal, P.O. Box
8888, Downtown Station, Montreal, Canada H3C 3P8
| | - Frédéric Byette
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Downtown Station, Montréal, Québec,
Canada H3C 3J7
| | - Marc-Olivier Séguin-Heine
- Department of Chemistry, Université du Québec à Montréal, P.O. Box
8888, Downtown Station, Montreal, Canada H3C 3P8
| | - André LeBlanc
- Department of Chemistry, Université du Québec à Montréal, P.O. Box
8888, Downtown Station, Montreal, Canada H3C 3P8
| | - Lekha Sleno
- Department of Chemistry, Université du Québec à Montréal, P.O. Box
8888, Downtown Station, Montreal, Canada H3C 3P8
| | - Réjean Tremblay
- Institut des Sciences
de la Mer de Rimouski, Université du Québec à Rimouski, 310 allée
des Ursulines, Rimouski, Canada G5L 3A1
| | - Christian Pellerin
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Downtown Station, Montréal, Québec,
Canada H3C 3J7
| | - Isabelle Marcotte
- Department of Chemistry, Université du Québec à Montréal, P.O. Box
8888, Downtown Station, Montreal, Canada H3C 3P8
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Beun LH, Beaudoux XJ, Kleijn JM, de Wolf FA, Stuart MAC. Self-assembly of silk-collagen-like triblock copolymers resembles a supramolecular living polymerization. ACS NANO 2012; 6:133-140. [PMID: 22168567 DOI: 10.1021/nn203092u] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We produced several pH-responsive silk-collagen-like triblocks, one acidic and two alkaline. At pH values where the silk-like block is uncharged the triblocks self-assemble into filaments. The pH-induced self-assembly was examined by atomic force microscopy, light scattering, and circular dichroism. The populations of filaments were found to be very monodisperse, indicating that the filaments start to grow from already present nuclei in the sample. The growth then follows pseudo-first-order kinetics for all examined triblocks. When normalized to the initial concentration, the growth curves of each type of triblock overlap, showing that the self-assembly is a generic process for silk-collagen-silk triblocks, regardless of the nature of their chargeable groups. The elongation speed of the filaments is slow, due to the presence of repulsive collagen-like blocks and the limited number of possibilities for an approaching triblock to successfully attach to a growing end. The formation of filaments is fully reversible. Already present filaments can start growing again by addition of new triblocks. The structure of all filaments is very rich in β-turns, leading to β-rolls. The triblocks attain this structure only when attaching to a growing filament.
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Affiliation(s)
- Lennart H Beun
- Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB, Wageningen, The Netherlands.
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