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Couzon N, Dhainaut J, Campagne C, Royer S, Loiseau T, Volkringer C. Porous textile composites (PTCs) for the removal and the decomposition of chemical warfare agents (CWAs) – A review. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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52
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Silk Fibroin Conjugated with Heparin Promotes Epithelialization and Wound Healing. Polymers (Basel) 2022; 14:polym14173582. [PMID: 36080656 PMCID: PMC9460566 DOI: 10.3390/polym14173582] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/21/2022] [Accepted: 08/24/2022] [Indexed: 11/23/2022] Open
Abstract
Silk fibroin (SF) has attracted attention as a base biomaterial that could be suitable in many applications because of its shape and structure. Highly functional SF has been developed to promote tissue regeneration with heparin conjugation. However, the hydrophobic three-dimensional structure of SF makes it difficult to bind to high-molecular-weight and hydrophilic compounds such as heparin. In this study, sufficient heparin modification was achieved using tyrosine residues as reaction points to improve cellular response. As it was considered that there was a trade-off between the improvement of water wettability and cell responsiveness induced by heparin modification, influences on the structure, and mechanical properties, the structure and physical properties of the SF conjugated with heparin were extensively evaluated. Results showed that increased amounts of heparin modification raised heparin content and water wettability on film surfaces even though SF formation was not inhibited. In addition, the proliferation of endothelial cells and fibroblasts were enhanced when a surface with sufficient heparin assumed its potential in assisting wound healing. This research emphasizes the importance of material design focusing on the crystal structure inherent in SF in the development of functionalized SF materials.
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Bucciarelli A, Motta A. Use of Bombyx mori silk fibroin in tissue engineering: From cocoons to medical devices, challenges, and future perspectives. BIOMATERIALS ADVANCES 2022; 139:212982. [PMID: 35882138 DOI: 10.1016/j.bioadv.2022.212982] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 05/26/2023]
Abstract
Silk fibroin has become a prominent material in tissue engineering (TE) over the last 20 years with almost 10,000 published works spanning in all the TE applications, from skeleton to neuronal regeneration. Fibroin is an extremely versatile biopolymer that, due to its ease of processing, has enabled the development of an entire plethora of materials whose properties and architectures can be tailored to suit target applications. Although the research and development of fibroin TE materials and devices is mature, apart from sutures, only a few medical products made of fibroin are used in the clinical routines. <40 clinical trials of Bombyx mori silk-related products have been reported by the FDA and few of them resulted in a commercialized device. In this review, after explaining the structure and properties of silk fibroin, we provide an overview of both fibroin constructs existing in the literature and fibroin devices used in clinic. Through the comparison of these two categories, we identified the burning issues faced by fibroin products during their translation to the market. Two main aspects will be considered. The first is the standardization of production processes, which leads both to the standardization of the characteristics of the issued device and the correct assessment of its failure. The second is the FDA regulations, which allow new devices to be marketed through the 510(k) clearance by demonstrating their equivalence to a commercialized medical product. The history of some fibroin medical devices will be taken as a case study. Finally, we will outline a roadmap outlining what actions we believe are needed to bring fibroin products to the market.
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Affiliation(s)
- Alessio Bucciarelli
- CNR nanotech, National Council of Research, University Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy.
| | - Antonella Motta
- BIOtech research centre and European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Department of Industrial Engineering, University of Trento, Via delle Regole 101, 38123 Trento, Italy.
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Xu Z, Ma Y, Dai H, Tan S, Han B. Advancements and Applications in the Composites of Silk Fibroin and Graphene-Based Materials. Polymers (Basel) 2022; 14:polym14153110. [PMID: 35956625 PMCID: PMC9370577 DOI: 10.3390/polym14153110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/18/2022] [Accepted: 07/23/2022] [Indexed: 11/16/2022] Open
Abstract
Silk fibroin and three kinds of graphene-based materials (graphene, graphene oxide, and reduced graphene oxide) have been widely investigated in biomedical fields. Recently, the hybrid composites of silk fibroin and graphene-based materials have attracted much attention owing to their combined advantages, i.e., presenting outstanding biocompatibility, mechanical properties, and excellent electrical conductivity. However, maintaining bio-toxicity and biodegradability at a proper level remains a challenge for other applications. This report describes the first attempt to summarize the hybrid composites’ preparation methods, properties, and applications to the best of our knowledge. We strongly believe that this review will open new doors for coming researchers.
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Xu J, Lv W, Yang W, Jin Y, Jin Q, Sun B, Zhang Z, Wang T, Zheng L, Shi X, Sun B, Wang G. In Situ Construction of Protective Films on Zn Metal Anodes via Natural Protein Additives Enabling High-Performance Zinc Ion Batteries. ACS NANO 2022; 16:11392-11404. [PMID: 35848633 DOI: 10.1021/acsnano.2c05285] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The strong activity of water molecules causes a series of parasitic side reactions on Zn anodes in the aqueous electrolytes. Herein, we introduce silk fibroin (SF) as a multifunctional electrolyte additive for aqueous zinc-ion (Zn-ion) batteries. The secondary structure transformation of SF molecules from α-helices to random coils in the aqueous electrolytes allows them to break the hydrogen bond network among free water molecules and participate in Zn2+ ion solvation structure. The SF molecules released from the [Zn(H2O)4(SF)]2+ solvation sheath appear to be gradually adsorbed on the surface of Zn anodes and in situ form a hydrostable and self-healable protective film. This SF-based protective film not only shows strong Zn2+ ion affinity to promote homogeneous Zn deposition but also has good insulating behavior to suppress parasitic reactions. Benefiting from these multifunctional advantages, the cycle life of the Zn||Zn symmetric cells reaches over 1600 h in SF-containing ZnSO4 electrolytes. In addition, by adopting a potassium vanadate cathode, the full cell shows excellent cycling stability for 1000 cycles at 3 A g-1. The in situ construction of a protective film on the Zn anode from natural protein molecules provides an effective strategy to achieve high-performance Zn metal anodes for Zn-ion batteries.
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Affiliation(s)
- Jing Xu
- Research Center of Grid Energy Storage and Battery Application, School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Wenli Lv
- Research Center of Grid Energy Storage and Battery Application, School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Wang Yang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yang Jin
- Research Center of Grid Energy Storage and Battery Application, School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Qianzheng Jin
- Research Center of Grid Energy Storage and Battery Application, School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Bin Sun
- Research Center of Grid Energy Storage and Battery Application, School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Zili Zhang
- Research Center of Grid Energy Storage and Battery Application, School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Tianyi Wang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Linfeng Zheng
- Institute of Rail Transportation, Jinan University, Zhuhai 519070, China
| | - Xiaolong Shi
- Research Center of Grid Energy Storage and Battery Application, School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Bing Sun
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Ultimo New South Wales 2007, Australia
| | - Guoxiu Wang
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Ultimo New South Wales 2007, Australia
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56
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Karimi F, Lau K, Kim HN, Och Z, Lim KS, Whitelock J, Lord M, Rnjak-Kovacina J. Surface Biofunctionalization of Silk Biomaterials Using Dityrosine Cross-Linking. ACS APPLIED MATERIALS & INTERFACES 2022; 14:31551-31566. [PMID: 35793155 DOI: 10.1021/acsami.2c03345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Biofunctionalization of silk biomaterial surfaces with extracellular matrix (ECM) molecules, cell binding peptides, or growth factors is important in a range of applications, including tissue engineering and development of implantable medical devices. Passive adsorption is the most common way to immobilize molecules of interest on preformed silk biomaterials but can lead to random molecular orientations and displacement from the surface, limiting their applications. Herein, we developed techniques for covalent immobilization of biomolecules using enzyme- or photoinitiated formation of dityrosine bonds between the molecule of interest and silk. Using recombinantly expressed domain V of the human basement membrane proteoglycan perlecan (rDV) as a model molecule, we demonstrated that rDV can be covalently immobilized via dityrosine cross-linking without the need to modify rDV or silk biomaterials. Dityrosine-based immobilization resulted in a different molecular orientation to passively absorbed rDV with less C- and N-terminal region exposure on the surface. Dityrosine-based immobilization supported functional rDV immobilization where immobilized rDV supported endothelial cell adhesion, spreading, migration, and proliferation. These results demonstrate the utility of dityrosine-based cross-linking in covalent immobilization of tyrosine-containing molecules on silk biomaterials in the absence of chemical modification, adding a simple and accessible technique to the silk biofunctionalization toolbox.
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Affiliation(s)
- Fatemeh Karimi
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Kieran Lau
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Ha Na Kim
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Zachary Och
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Khoon S Lim
- Light Activated Biomaterials (LAB) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch 8011, New Zealand
| | - John Whitelock
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Megan Lord
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Jelena Rnjak-Kovacina
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
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Tissue Adhesives in Reconstructive and Aesthetic Surgery—Application of Silk Fibroin-Based Biomaterials. Int J Mol Sci 2022; 23:ijms23147687. [PMID: 35887050 PMCID: PMC9320471 DOI: 10.3390/ijms23147687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/07/2022] [Accepted: 07/10/2022] [Indexed: 02/04/2023] Open
Abstract
Tissue adhesives have been successfully used in various kind of surgeries such as oral and maxillofacial surgery for some time. They serve as a substitute for suturing of tissues and shorten treatment time. Besides synthetic-based adhesives, a number of biological-based formulations are finding their way into research and clinical application. In natural adhesives, proteins play a crucial role, mediating adhesion and cohesion at the same time. Silk fibroin, as a natural biomaterial, represents an interesting alternative to conventional medical adhesives. Here, the most commonly used bioadhesives as well as the potential of silk fibroin as natural adhesives will be discussed.
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58
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In vitro biological activities of the flexible and virus nanoparticle-decorated silk fibroin-based films. Int J Biol Macromol 2022; 216:437-445. [PMID: 35809668 DOI: 10.1016/j.ijbiomac.2022.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/26/2022] [Accepted: 07/02/2022] [Indexed: 11/21/2022]
Abstract
Flexible films were prepared from silk fibroin (SF) and gelatin (GA) with a presence of glycerol (Gly), followed by water vapor annealing to achieve water-insoluble matrices. The blended SF/GA/Gly films were chemically conjugated with tobacco mosaic virus (TMV), either native (TMV-wt) or genetically modified with Arg-Gly-Asp (RGD) sequences (TMV-rgd), to improve cellular responses. The attachment and proliferation of L929 cells on TMV-decorated films were improved, possibly due to enhanced surface roughness. The cellular responses were pronounced with TMV-rgd, due to the proper decoration of RGD, which is an integrin recognition motif supporting cell binding. However, the biological results were inconclusive for human primary cells because of an innate slow growth kinetic of the cells. Additionally, the cells on SF/GA/Gly films were greater populated in S and G2/M phase, and the cell cycle arrest was notably increased in the TMV-conjugated group. Our findings revealed that the films modified with TMV were cytocompatible and the cellular responses were significantly enhanced when conjugated with its RGD mutants. The biological analysis on the cellular mechanisms in response to TMV is further required to ensure the safety concern of the biomaterials toward clinical translation.
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59
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Tan XH, Liu L, Mitryashkin A, Wang Y, Goh JCH. Silk Fibroin as a Bioink - A Thematic Review of Functionalization Strategies for Bioprinting Applications. ACS Biomater Sci Eng 2022; 8:3242-3270. [PMID: 35786841 DOI: 10.1021/acsbiomaterials.2c00313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Bioprinting is an emerging tissue engineering technique that has attracted the attention of researchers around the world, for its ability to create tissue constructs that recapitulate physiological function. While the technique has been receiving hype, there are still limitations to the use of bioprinting in practical applications, much of which is due to inappropriate bioink design that is unable to recapitulate complex tissue architecture. Silk fibroin (SF) is an exciting and promising bioink candidate that has been increasingly popular in bioprinting applications because of its processability, biodegradability, and biocompatibility properties. However, due to its lack of optimum gelation properties, functionalization strategies need to be employed so that SF can be effectively used in bioprinting applications. These functionalization strategies are processing methods which allow SF to be compatible with specific bioprinting techniques. Previous literature reviews of SF as a bioink mainly focus on discussing different methods to functionalize SF as a bioink, while a comprehensive review on categorizing SF functional methods according to their potential applications is missing. This paper seeks to discuss and compartmentalize the different strategies used to functionalize SF for bioprinting and categorize the strategies for each bioprinting method (namely, inkjet, extrusion, and light-based bioprinting). By compartmentalizing the various strategies for each printing method, the paper illustrates how each strategy is better suited for a target tissue application. The paper will also discuss applications of SF bioinks in regenerating various tissue types and the challenges and future trends that SF can take in its role as a bioink material.
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Affiliation(s)
- Xuan Hao Tan
- Department of Biomedical Engineering, College of Engineering and Design, National University of Singapore, 15 Kent Ridge Crescent, E7-06-03, Singapore 119276, Singapore.,Integrative Sciences and Engineering Programme, National University of Singapore, University Hall, Tan Chin Tuan Wing, #05-03, 21 Lower Kent Ridge Road, Singapore 119077, Singapore
| | - Ling Liu
- Department of Biomedical Engineering, College of Engineering and Design, National University of Singapore, 15 Kent Ridge Crescent, E7-06-03, Singapore 119276, Singapore
| | - Alexander Mitryashkin
- Department of Biomedical Engineering, College of Engineering and Design, National University of Singapore, 15 Kent Ridge Crescent, E7-06-03, Singapore 119276, Singapore
| | - Yunyun Wang
- Department of Biomedical Engineering, College of Engineering and Design, National University of Singapore, 15 Kent Ridge Crescent, E7-06-03, Singapore 119276, Singapore
| | - James Cho Hong Goh
- Department of Biomedical Engineering, College of Engineering and Design, National University of Singapore, 15 Kent Ridge Crescent, E7-06-03, Singapore 119276, Singapore.,Integrative Sciences and Engineering Programme, National University of Singapore, University Hall, Tan Chin Tuan Wing, #05-03, 21 Lower Kent Ridge Road, Singapore 119077, Singapore.,Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, NUHS Tower Block, Level 11, 1E Kent Ridge Road, Singapore 119288, Singapore
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60
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Strategies for the Biofunctionalization of Straining Flow Spinning Regenerated Bombyx mori Fibers. Molecules 2022; 27:molecules27134146. [PMID: 35807389 PMCID: PMC9267934 DOI: 10.3390/molecules27134146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 11/16/2022] Open
Abstract
High-performance regenerated silkworm (Bombyx mori) silk fibers can be produced efficiently through the straining flow spinning (SFS) technique. In addition to an enhanced biocompatibility that results from the removal of contaminants during the processing of the material, regenerated silk fibers may be functionalized conveniently by using a range of different strategies. In this work, the possibility of implementing various functionalization techniques is explored, including the production of fluorescent fibers that may be tracked when implanted, the combination of the fibers with enzymes to yield fibers with catalytic properties, and the functionalization of the fibers with cell-adhesion motifs to modulate the adherence of different cell lineages to the material. When considered globally, all these techniques are a strong indication not only of the high versatility offered by the functionalization of regenerated fibers in terms of the different chemistries that can be employed, but also on the wide range of applications that can be covered with these functionalized fibers.
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61
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Chemical Modification of Silk Fibroin through Serine Amino Acid Residues. MATERIALS 2022; 15:ma15134399. [PMID: 35806524 PMCID: PMC9267670 DOI: 10.3390/ma15134399] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/15/2022] [Accepted: 06/19/2022] [Indexed: 12/12/2022]
Abstract
Silk fibroin (SF) is a natural protein polymer and promising biomaterial. Chemical modifications have attracted growing interest in expanding SF applications. However, the majority of amino acid residues in SF are non-reactive and most of the reactive ones are in the crystalline region. Herein, a modification was conducted to investigate the possibility of direct modification on the surface of natural SF by a reagent with a mild reactivity, the type and quantity of the residues involved in the reactions, and the structural changes upon modification. Infrared spectrum, 1H NMR, titration and amino acid analyses, X-ray diffraction, and hemolysis test were used to analyze the materials. The results showed that sulfonic acid groups were grafted onto SF and the reaction occurred mainly at serine residues through hydroxyl groups. In total, 0.0958 mmol/g of residues participated in the modification with a modification efficiency of 7.6%. Moreover, the crystallinity and the content of β-sheet structure in SF increased upon modification. The modified material had good blood-compatibility. In conclusion, surface modification on native SF through serine residues was practicable and had the advantage of increased β-sheet structure. This will provide an alternative way for the modification of fibroin for the desired application in the biomedical field.
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Hausken KG, Frevol RL, Dowdle KP, Young AN, Talusig JM, Holbrook CC, Rubin BK, Murphy AR. Quantitative Functionalization of the Tyrosine Residues in Silk Fibroin through an Amino‐Tyrosine Intermediate. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kian G. Hausken
- Department of Chemistry Western Washington University 516 High St. Bellingham WA 98225‐9150 USA
| | - Romane L. Frevol
- Department of Chemistry Western Washington University 516 High St. Bellingham WA 98225‐9150 USA
| | - Kimberly P. Dowdle
- Department of Chemistry Western Washington University 516 High St. Bellingham WA 98225‐9150 USA
| | - Aleena N. Young
- Department of Chemistry Western Washington University 516 High St. Bellingham WA 98225‐9150 USA
| | - Jeremy M. Talusig
- Department of Chemistry Western Washington University 516 High St. Bellingham WA 98225‐9150 USA
| | - Carolynne C. Holbrook
- Department of Chemistry Western Washington University 516 High St. Bellingham WA 98225‐9150 USA
| | - Benjamin K. Rubin
- Department of Chemistry Western Washington University 516 High St. Bellingham WA 98225‐9150 USA
| | - Amanda R. Murphy
- Department of Chemistry Western Washington University 516 High St. Bellingham WA 98225‐9150 USA
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63
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Abstract
Silk fibroin (SF) is an attractive material for composing bioinks suitable for three-dimensional (3D) bioprinting. However, the low viscosity of SF solutions obtained through common dissolution methods limits 3D-bioprinting applications without the addition of thickeners or partial gelation beforehand. Here, we report a method of 3D bioprinting low-viscosity SF solutions without additives. We combined a method of freeform reversible embedding of suspended hydrogels, known as the FRESH method, with horseradish peroxidase-catalyzed cross-linking. Using this method, we successfully fabricated 3D SF hydrogel constructs from low-viscosity SF ink (10% w/w, 50 mPa s at 1 s-1 shear rate), which does not yield 3D constructs when printed onto a plate in air. Studies using mouse fibroblasts confirmed that the printing process was cell-friendly. Additionally, cells enclosed in printed SF hydrogel constructs maintained > 90% viability for 11 days of culture. These results demonstrate that the 3D bioprinting technique developed in this study enables new 3D bioprinting applications using SF inks and thus has a great potential to contribute to tissue engineering and regenerative medicine.
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Affiliation(s)
- Shinji Sakai
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Takahiro Morita
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
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64
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Leem JW, Jeon HJ, Ji Y, Park SM, Kwak Y, Park J, Kim KY, Kim SW, Kim YL. Edible Matrix Code with Photogenic Silk Proteins. ACS CENTRAL SCIENCE 2022; 8:513-526. [PMID: 35647284 PMCID: PMC9136975 DOI: 10.1021/acscentsci.1c01233] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Indexed: 05/28/2023]
Abstract
Counterfeit medicines are a healthcare security problem, posing not only a direct threat to patient safety and public health but also causing heavy economic losses. Current anticounterfeiting methods are limited due to the toxicity of the constituent materials and the focus of secondary packaging level protections. We introduce an edible, imperceptible, and scalable matrix code of information representation and data storage for pharmaceutical products. This matrix code is digestible as it is composed of silk fibroin genetically encoded with fluorescent proteins produced by ecofriendly, sustainable silkworm farming. Three distinct fluorescence emission colors are incorporated into a multidimensional parameter space with a variable encoding capacity in a format of matrix arrays. This code is smartphone-readable to extract a digitized security key augmented by a deep neural network for overcoming fabrication imperfections and a cryptographic hash function for enhanced security. The biocompatibility, photostability, thermal stability, long-term reliability, and low bit error ratio of the code support the immediate feasibility for dosage-level anticounterfeit measures and authentication features. The edible code affixed to each medicine can serve as serialization, track and trace, and authentication at the dosage level, empowering every patient to play a role in combating illicit pharmaceuticals.
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Affiliation(s)
- Jung Woo Leem
- Weldon
School of Biomedical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
| | - Hee-Jae Jeon
- Weldon
School of Biomedical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
| | - Yuhyun Ji
- Weldon
School of Biomedical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
| | - Sang Mok Park
- Weldon
School of Biomedical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
| | - Yunsang Kwak
- Department
of Mechanical System Engineering, Kumoh
National Institute of Technology, 61 Daehak-ro, Gumi-si, Gyeongsangbuk-do 39177, Republic of Korea
| | - Jongwoo Park
- Department
of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Jeollabuk-do 55365, Republic of Korea
| | - Kee-Young Kim
- Department
of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Jeollabuk-do 55365, Republic of Korea
| | - Seong-Wan Kim
- Department
of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, Jeollabuk-do 55365, Republic of Korea
| | - Young L. Kim
- Weldon
School of Biomedical Engineering, Purdue
University, West Lafayette, Indiana 47907, United States
- Purdue
University Center for Cancer Research, West Lafayette, Indiana 47907, United States
- Regenstrief
Center for Healthcare Engineering, West Lafayette, Indiana 47907, United States
- Purdue Quantum
Science and Engineering Institute, West Lafayette, Indiana 47907, United States
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65
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Preparation and Characterization of Natural Silk Fibroin Hydrogel for Protein Drug Delivery. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27113418. [PMID: 35684356 PMCID: PMC9181960 DOI: 10.3390/molecules27113418] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 12/30/2022]
Abstract
In recent years, hydrogels have been widely used as drug carriers, especially in the area of protein delivery. The natural silk fibroin produced from cocoons of the Bombyx mori silkworm possesses excellent biocompatibility, significant bioactivity, and biodegradability. Therefore, silk fibroin-based hydrogels are arousing widespread interest in biomedical research. In this study, a process for extracting natural silk fibroin from raw silk textile yarns was established, and three aqueous solutions of silk fibroin with different molecular weight distributions were successfully prepared by controlling the degumming time. Silk fibroin was dispersed in the aqueous solution as “spherical” aggregate particles, and the smaller particles continuously accumulated into large particles. Finally, a silk fibroin hydrogel network was formed. A rheological analysis showed that as the concentration of the silk fibroin hydrogel increased its storage modulus increased significantly. The degradation behavior of silk fibroin hydrogel in different media verified its excellent stability, and the prepared silk fibroin hydrogel had good biocompatibility and an excellent drug-loading capacity. After the protein model drug BSA was loaded, the cumulative drug release within 12 h reached 80%. We hope that these investigations will promote the potential utilities of silk fibroin hydrogels in clinical medicine.
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66
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Shen X, Shi H, Wei H, Wu B, Xia Q, Yeo J, Huang W. Engineering Natural and Recombinant Silks for Sustainable Biodevices. Front Chem 2022; 10:881028. [PMID: 35601555 PMCID: PMC9117649 DOI: 10.3389/fchem.2022.881028] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/15/2022] [Indexed: 01/12/2023] Open
Abstract
Silk fibroin (SF) is a structural protein derived from natural silkworm silks. Materials fabricated based on SF usually inherit extraordinary physical and biological properties, including high mechanical strength, toughness, optical transparency, tailorable biodegradability, and biocompatibility. Therefore, SF has attracted interest in the development of sustainable biodevices, especially for emergent bio-electronic technologies. To expand the function of current silk devices, the SF characteristic sequence has been used to synthesize recombinant silk proteins that benefit from SF and other functional peptides, such as stimuli-responsive elastin peptides. In addition to genetic engineering methods, innovated chemistry modification approaches and improved material processing techniques have also been developed for fabricating advanced silk materials with tailored chemical features and nanostructures. Herein, this review summarizes various methods to synthesize functional silk-based materials from different perspectives. This review also highlights the recent advances in the applications of natural and recombinant silks in tissue regeneration, soft robotics, and biosensors, using B. mori SF and silk-elastin-like proteins (SELPs) as examples.
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Affiliation(s)
- Xinchen Shen
- The Zhejiang University - University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - Haoyuan Shi
- J Lab for Engineering Living Materials, Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, United States
| | - Hongda Wei
- The Zhejiang University - University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - Boxuan Wu
- The Zhejiang University - University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - Qingyuan Xia
- The Zhejiang University - University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - Jingjie Yeo
- J Lab for Engineering Living Materials, Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, United States
| | - Wenwen Huang
- The Zhejiang University - University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
- Dr. Li Dak Sum and Yip Yio Chin Center for Stem Cells and Regenerative Medicine and Department of Orthopedics of the Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
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67
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Bian Y, Wu X, Zhu Z, Zhang X, Zeng R, Yang B. Terahertz spectroscopy for interpreting the formation and hierarchical structures of silk fibroin oligopeptides. Analyst 2022; 147:1915-1922. [PMID: 35364604 DOI: 10.1039/d1an02088a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Determining the configuration and conformation of peptides is crucial for interpreting their structure-property relationships. In this work, we present nondestructive terahertz time-domain spectroscopy combined with density functional theory (DFT) and potential energy distribution (PED) analysis to identify the hierarchical structures of oligopeptides. The characteristic THz spectra of silk fibroin oligopeptides have been measured. Supported by DFT and PED analysis, the intrinsic differences among the dipeptides were identified by the collective vibrational modes of "R" groups and terminal groups linked by molecular chains of amido bonds or benzene rings. For tetrapeptides and hexapeptides, a few weak resonances and intensity differences were distinguished by the vibration mode of the molecular collective network formed by the interaction of amide planes and intramolecular hydrogen bond interactions. According to the THz absorption analyses of amide planes and intramolecular interactions within the molecular chains of silk fibroin oligopeptide isomer pairs, the formation and hierarchical structures were successfully interpreted using THz spectroscopy. This investigation develops a better understanding of the peptide formation mechanism, which further provides guidance in interpreting the formation of silk.
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Affiliation(s)
- Yujing Bian
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China.
| | - Xiaodong Wu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China.
| | - Zhenqi Zhu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China.
| | - Xun Zhang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China.
| | - Ruonan Zeng
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China.
| | - Bin Yang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China.
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Silk Fibroin Hydrogels Could Be Therapeutic Biomaterials for Neurological Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2076680. [PMID: 35547640 PMCID: PMC9085322 DOI: 10.1155/2022/2076680] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 04/18/2022] [Indexed: 12/17/2022]
Abstract
Silk fibroin, a natural macromolecular protein without physiological activity, has been widely used in different fields, such as the regeneration of bones, cartilage, nerves, and other tissues. Due to irrevocable neuronal injury, the treatment and prognosis of neurological diseases need to be investigated. Despite attempts to propel neuroprotective therapeutic approaches, numerous attempts to translate effective therapies for brain disease have been largely unsuccessful. As a good candidate for biomedical applications, hydrogels based on silk fibroin effectively amplify their advantages. The ability of nerve tissue regeneration, inflammation regulation, the slow release of drugs, antioxidative stress, regulation of cell death, and hemostasis could lead to a new approach to treating neurological disorders. In this review, we introduced the preparation of SF hydrogels and then delineated the probable mechanism of silk fibroin in the treatment of neurological diseases. Finally, we showed the application of silk fibroin in neurological diseases.
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Lan L, Ping J, Xiong J, Ying Y. Sustainable Natural Bio-Origin Materials for Future Flexible Devices. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200560. [PMID: 35322600 PMCID: PMC9130888 DOI: 10.1002/advs.202200560] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/27/2022] [Indexed: 05/12/2023]
Abstract
Flexible devices serve as important intelligent interfaces in various applications involving health monitoring, biomedical therapies, and human-machine interfacing. To address the concern of electronic waste caused by the increasing usage of electronic devices based on synthetic polymers, bio-origin materials that possess environmental benignity as well as sustainability offer new opportunities for constructing flexible electronic devices with higher safety and environmental adaptivity. Herein, the bio-source and unique molecular structures of various types of natural bio-origin materials are briefly introduced. Their properties and processing technologies are systematically summarized. Then, the recent progress of these materials for constructing emerging intelligent flexible electronic devices including energy harvesters, energy storage devices, and sensors are introduced. Furthermore, the applications of these flexible electronic devices including biomedical implants, artificial e-skin, and environmental monitoring are summarized. Finally, future challenges and prospects for developing high-performance bio-origin material-based flexible devices are discussed. This review aims to provide a comprehensive and systematic summary of the latest advances in the natural bio-origin material-based flexible devices, which is expected to offer inspirations for exploitation of green flexible electronics, bridging the gap in future human-machine-environment interactions.
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Affiliation(s)
- Lingyi Lan
- Laboratory of Agricultural Information Intelligent SensingSchool of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhouZhejiang310058China
- Key Laboratory of Intelligent Equipment and Robotics for Agriculture of Zhejiang ProvinceHangzhouZhejiang310058China
| | - Jianfeng Ping
- Laboratory of Agricultural Information Intelligent SensingSchool of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhouZhejiang310058China
- Key Laboratory of Intelligent Equipment and Robotics for Agriculture of Zhejiang ProvinceHangzhouZhejiang310058China
| | - Jiaqing Xiong
- Innovation Center for Textile Science and TechnologyDonghua University2999 North Renmin RoadShanghai201620China
| | - Yibin Ying
- Laboratory of Agricultural Information Intelligent SensingSchool of Biosystems Engineering and Food ScienceZhejiang UniversityHangzhouZhejiang310058China
- Key Laboratory of Intelligent Equipment and Robotics for Agriculture of Zhejiang ProvinceHangzhouZhejiang310058China
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A Biomimetic Electrospun Membrane Supports the Differentiation and Maturation of Kidney Epithelium from Human Stem Cells. Bioengineering (Basel) 2022; 9:bioengineering9050188. [PMID: 35621466 PMCID: PMC9137565 DOI: 10.3390/bioengineering9050188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 11/28/2022] Open
Abstract
Podocytes derived from human induced pluripotent stem (hiPS) cells are enabling studies of kidney development and disease. However, many of these studies are carried out in traditional tissue culture plates that do not accurately recapitulate the molecular and mechanical features necessary for modeling tissue- and organ-level functionalities. Overcoming these limitations requires the design and application of tunable biomaterial scaffolds. Silk fibroin is an attractive biomaterial due to its biocompatibility and versatility, which include its ability to form hydrogels, sponge-like scaffolds, and electrospun fibers and membranes appropriate for tissue engineering and biomedical applications. In this study, we show that hiPS cells can be differentiated into post-mitotic kidney glomerular podocytes on electrospun silk fibroin membranes functionalized with laminin. The resulting podocytes remain viable and express high levels of podocyte-specific markers consistent with the mature cellular phenotype. The resulting podocytes were propagated for at least two weeks, enabling secondary cell-based applications and analyses. This study demonstrates for the first time that electrospun silk fibroin membrane can serve as a supportive biocompatible platform for human podocyte differentiation and propagation. We anticipate that the results of this study will pave the way for the use of electrospun membranes and other biomimetic scaffolds for kidney tissue engineering, including the development of co-culture systems and organs-on-chips microphysiological devices.
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Tuwalska A, Grabska-Zielińska S, Sionkowska A. Chitosan/Silk Fibroin Materials for Biomedical Applications-A Review. Polymers (Basel) 2022; 14:polym14071343. [PMID: 35406217 PMCID: PMC9003105 DOI: 10.3390/polym14071343] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/21/2022] [Accepted: 03/24/2022] [Indexed: 01/21/2023] Open
Abstract
This review provides a report on recent advances in the field of chitosan (CTS) and silk fibroin (SF) biopolymer blends as new biomaterials. Chitosan and silk fibroin are widely used to obtain biomaterials. However, the materials based on the blends of these two biopolymers have not been summarized in a review paper yet. As these materials can attract both academic and industrial attention, we propose this review paper to showcase the latest achievements in this area. In this review, the latest literature regarding the preparation and properties of chitosan and silk fibroin and their blends has been reviewed.
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Affiliation(s)
- Anna Tuwalska
- Department of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University, Gagarin 7, 87-100 Toruń, Poland;
| | - Sylwia Grabska-Zielińska
- Department of Physical Chemistry and Physicochemistry of Polymers, Faculty of Chemistry, Nicolaus Copernicus University, Gagarin 7, 87-100 Toruń, Poland;
| | - Alina Sionkowska
- Department of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University, Gagarin 7, 87-100 Toruń, Poland;
- Correspondence:
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72
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Species identification of silks by protein mass spectrometry reveals evidence of wild silk use in antiquity. Sci Rep 2022; 12:4579. [PMID: 35301348 PMCID: PMC8931077 DOI: 10.1038/s41598-022-08167-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 02/08/2022] [Indexed: 12/05/2022] Open
Abstract
Silk has been a luxurious commodity throughout modern human history and sericulture has played an important role in ancient global trade as well as technological and cultural developments. Archaeological findings suggest that prior to domestication of the mulberry silkworm (Bombyxmori) silks were obtained from a range of silk-producing moth species with regional specificity. However, investigating the origins of sericulture is difficult as classification of silks by species-type has proved technically challenging. We therefore investigated a range of methods for solubilising modern and archaeological silks and developed a mass spectrometry-based proteomics method that was able to successfully differentiate modern Bombyx,Antheraea, and Samia-produced silks down to the species level. We subsequently analysed archaeological silk materials excavated from the ancient city of Palmyra. Solubilisation behaviour and proteomic analysis provided evidence that the Palmyra silks were constructed from wild silk derived from Antheraeamylitta, the Indian Tasar silkworm. We believe this is the first species-level biochemical evidence that supports archaeological theories about the production and trade of Indian wild silks in antiquity.
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Abstract
Natural biological materials provide a rich source of inspiration for building high-performance materials with extensive applications. By mimicking their chemical compositions and hierarchical architectures, the past decades have witnessed the rapid development of bioinspired materials. As a very promising biosourced raw material, silk is drawing increasing attention due to excellent mechanical properties, favorable versatility, and good biocompatibility. In this review, we provide an overview of the recent progress in silk-based bioinspired structural and functional materials. We first give a brief introduction of silk, covering its sources, features, extraction, and forms. We then summarize the preparation and application of silk-based materials mimicking four typical biological materials including bone, nacre, skin, and polar bear hair. Finally, we discuss the current challenges and future prospects of this field.
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Affiliation(s)
- Zongpu Xu
- Institute of Applied Bioresources, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources of Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Weiwei Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
- Corresponding author
| | - Hao Bai
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- Corresponding author
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74
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Bioinspired Sandcastle Worm-Derived Peptide-Based Hybrid Hydrogel for Promoting the Formation of Liver Spheroids. Gels 2022; 8:gels8030149. [PMID: 35323262 PMCID: PMC8950079 DOI: 10.3390/gels8030149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 12/10/2022] Open
Abstract
The generation of hepatic spheroids is beneficial for a variety of potential applications, including drug development, disease modeling, transplantation, and regenerative medicine. Natural hydrogels are obtained from tissues and have been widely used to promote the growth, differentiation, and retention of specific functionalities of hepatocytes. However, relying on natural hydrogels for the generation of hepatic spheroids, which have batch to batch variations, may in turn limit the previously mentioned potential applications. For this reason, we researched a way to establish a three-dimensional (3D) culture system that more closely mimics the interaction between hepatocytes and their surrounding microenvironments, thereby potentially offering a more promising and suitable system for drug development, disease modeling, transplantation, and regenerative medicine. Here, we developed self-assembling and bioactive hybrid hydrogels to support the generation and growth of hepatic spheroids. Our hybrid hydrogels (PC4/Cultrex) inspired by the sandcastle worm, an Arg-Gly-Asp (RGD) cell adhesion sequence, and bioactive molecules derived from Cultrex BME (Basement Membrane Extract). By performing optimizations to the design, the PC4/Cultrex hybrid hydrogels can enhance HepG2 cells to form spheroids and express their molecular signatures (e.g., Cyp3A4, Cyp7a1, A1at, Afp, Ck7, Ck1, and E-cad). Our study demonstrated that this hybrid hydrogel system offers potential advantages for hepatocytes in proliferating, differentiating, and self-organizing to form hepatic spheroids in a more controllable and reproducible manner. In addition, it is a versatile and cost-effective method for 3D tissue cultures in mass quantities. Importantly, we demonstrate that it is feasible to adapt a bioinspired approach to design biomaterials for 3D culture systems, which accelerates the design of novel peptide structures and broadens our research choices on peptide-based hydrogels.
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75
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Horo H, Saha M, Das H, Mandal B, Kundu LM. Synthesis of highly fluorescent, amine-functionalized carbon dots from biotin-modified chitosan and silk-fibroin blend for target-specific delivery of antitumor agents. Carbohydr Polym 2022; 277:118862. [PMID: 34893267 DOI: 10.1016/j.carbpol.2021.118862] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/21/2021] [Accepted: 11/03/2021] [Indexed: 12/17/2022]
Abstract
Carbon dots (CDs) have been a promising theranostic tool with high biocompatibility and a tailorable fluorescence profile. Herein, we report the synthesis of highly fluorescent amine-functionalized CDs from low molecular weight chitosan (LMWC) and silk-fibroin (SF) blends. The synthesized CDs were quasi-spherical in shape with a size of 3 ± 1.5 nm. A significant increase in fluorescent intensity and quantum yield was achieved upon increasing the SF content due to nitrogen doping. For inducing target specificity to cancer cells, biotin was covalently conjugated to the CDs, and the conjugation was determined by FTIR spectroscopy. The conjugate was further loaded with 5-fluorouracil (5-FU) as a model anti-cancer drug. The MTT assay showed increased cytotoxicity of the conjugated CDs in cancer cells compared to normal cells. The live-cell imaging in MCF-7 cell lines showed bright blue-colored fluorescence and increased internalization of the conjugated CDs than the non-conjugate ones due to receptor-mediated endocytosis.
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Affiliation(s)
- Himali Horo
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Muktashree Saha
- Department of Bioscience & Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Himadree Das
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Bishnupada Mandal
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Lal Mohan Kundu
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
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Liu C, Hua J, Ng PF, Wang Y, Fei B, Shao Z. Bioinspired Photo-Cross-Linking of Stretched Solid Silks for Enhanced Strength. ACS Biomater Sci Eng 2022; 8:484-492. [DOI: 10.1021/acsbiomaterials.1c01170] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chang Liu
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Jiachuan Hua
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Pui Fai Ng
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Yidi Wang
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Bin Fei
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Zhengzhong Shao
- Department of Macromolecular Science, Fudan University, Shanghai 200437, China
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77
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Li JX, Zhao SX, Zhang YQ. Silk Protein Composite Bioinks and Their 3D Scaffolds and In Vitro Characterization. Int J Mol Sci 2022; 23:910. [PMID: 35055092 PMCID: PMC8776115 DOI: 10.3390/ijms23020910] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/12/2022] [Accepted: 01/12/2022] [Indexed: 02/01/2023] Open
Abstract
This paper describes the use of silk protein, including fibroin and sericin, from an alkaline solution of Ca(OH)2 for the clean degumming of silk, which is neutralized by sulfuric acid to create calcium salt precipitation. The whole sericin (WS) can not only be recycled, but completely degummed silk fibroin (SF) is also obtained in this process. The inner layers of sericin (ILS) were also prepared from the degummed silk in boiling water by 120 °C water treatment. When the three silk proteins (SPs) were individually grafted with glycidyl methacrylate (GMA), three grafted silk proteins (G-SF, G-WS, G-ILS) were obtained. After adding I2959 (a photoinitiator), the SP bioinks were prepared with phosphate buffer (PBS) and subsequently bioprinted into various SP scaffolds with a 3D network structure. The compressive strength of the SF/ILS (20%) scaffold added to G-ILS was 45% higher than that of the SF scaffold alone. The thermal decomposition temperatures of the SF/WS (10%) and SF/ILS (20%) scaffolds, mainly composed of a β-sheet structures, were 3 °C and 2 °C higher than that of the SF scaffold alone, respectively. The swelling properties and resistance to protease hydrolysis of the SP scaffolds containing sericin were improved. The bovine insulin release rates reached 61% and 56% after 5 days. The L929 cells adhered, stretched, and proliferated well on the SP composite scaffold. Thus, the SP bioinks obtained could be used to print different types of SP composite scaffolds adapted to a variety of applications, including cells, drugs, tissues, etc. The techniques described here provide potential new applications for the recycling and utilization of sericin, which is a waste product of silk processing.
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Affiliation(s)
| | | | - Yu-Qing Zhang
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, RM702-2303, No. 199 Renai Road, Industrial Park, Suzhou 215123, China; (J.-X.L.); (S.-X.Z.)
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78
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Gelation Methods to Assemble Fibrous Proteins. Methods Mol Biol 2022; 2347:149-165. [PMID: 34472063 DOI: 10.1007/978-1-0716-1574-4_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Gelation is an efficient way to fabricate fibrous protein materials. Briefly, it is an aggregation process where protein molecules assembly from a random structure into an organized structure such as nanofibrillar networks. According to their mechanisms, the fibrous proteins gelation can be classified into physical gelation and chemical gelation. The physical gelation is formed by the conformational transformation of fibroin proteins, which can be triggered by temperature, concentration, pH, or shear force. On the other hand, the chemical gelation is to cross-link fibrous proteins through chemical and/or enzymatic reactions. In this chapter, we summarize the protocols for preparing fibrous protein hydrogels, including both physical and chemical methods. The mechanisms of these gelation methods are also highlighted.
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79
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Nguyen Thanh T, Laowattanatham N, Ratanavaraporn J, Sereemaspun A, Yodmuang S. Hyaluronic acid crosslinked with alginate hydrogel: A versatile and biocompatible bioink platform for tissue engineering. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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80
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Lin Z, Li Y, Meng G, Hu X, Zeng Z, Zhao B, Lin N, Liu XY. Reinforcement of Silk Microneedle Patches for Accurate Transdermal Delivery. Biomacromolecules 2021; 22:5319-5326. [PMID: 34793132 DOI: 10.1021/acs.biomac.1c01213] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Microneedles (MNs) have attracted considerable attention in the pharmaceutical field as a minimally invasive delivery alternative to hypodermic needles. Current material systems of MNs have gradually shifted from metals, ceramics, and silicon to polymer in consideration of toughness and drug loading capacity. Silk fibroin (SF) is considered one of the most promising alternatives because it combines the ability to maintain the activity of biomolecules, adjustable mechanical strength, and excellent biocompatibility. However, the strength and hardness of SF MNs need to be carefully optimized to ensure skin epidermis penetration and controlled drug release, which are rarely explored in reported works. Here, the synergistic effect of glutaraldehyde-based cross-linking and water vapor annealing post-treatment is presented as an effective method to promote the formation of SF molecular networks and the mechanical strength of SF MNs. Moreover, the reinforced MN substrate is coated with a drug-loaded SF layer with low crystallinity. The drug release experiments demonstrate the successful controlled release of rhodamine B, horseradish peroxidase, and tetracycline, which suggests the great potential in the application of vaccine, antibiosis, cosmetology, and so forth.
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Affiliation(s)
- Zaifu Lin
- College of Materials, College of Ocean and Earth Sciences, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University, Xiamen 361005, People's Republic of China
| | - Yanru Li
- College of Materials, College of Ocean and Earth Sciences, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University, Xiamen 361005, People's Republic of China
| | - Guoqing Meng
- College of Materials, College of Ocean and Earth Sciences, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University, Xiamen 361005, People's Republic of China
| | - Xinling Hu
- College of Materials, College of Ocean and Earth Sciences, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University, Xiamen 361005, People's Republic of China
| | - Zhicheng Zeng
- College of Materials, College of Ocean and Earth Sciences, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University, Xiamen 361005, People's Republic of China
| | - Bicheng Zhao
- College of Materials, College of Ocean and Earth Sciences, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University, Xiamen 361005, People's Republic of China
| | - Naibo Lin
- College of Materials, College of Ocean and Earth Sciences, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University, Xiamen 361005, People's Republic of China
| | - Xiang Yang Liu
- College of Materials, College of Ocean and Earth Sciences, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University, Xiamen 361005, People's Republic of China.,Physics Department, Faculty of Science, National University of Singapore, Singapore 117542, Republic of Singapore
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81
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Kim SH, Hong H, Ajiteru O, Sultan MT, Lee YJ, Lee JS, Lee OJ, Lee H, Park HS, Choi KY, Lee JS, Ju HW, Hong IS, Park CH. 3D bioprinted silk fibroin hydrogels for tissue engineering. Nat Protoc 2021; 16:5484-5532. [PMID: 34716451 DOI: 10.1038/s41596-021-00622-1] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 08/26/2021] [Indexed: 02/07/2023]
Abstract
The development of biocompatible and precisely printable bioink addresses the growing demand for three-dimensional (3D) bioprinting applications in the field of tissue engineering. We developed a methacrylated photocurable silk fibroin (SF) bioink for digital light processing 3D bioprinting to generate structures with high mechanical stability and biocompatibility for tissue engineering applications. Procedure 1 describes the synthesis of photocurable methacrylated SF bioink, which takes 2 weeks to complete. Digital light processing is used to fabricate 3D hydrogels using the bioink (1.5 h), which are characterized in terms of methacrylation, printability, mechanical and rheological properties, and biocompatibility. The physicochemical properties of the bioink can be modulated by varying photopolymerization conditions such as the degree of methacrylation, light intensity, and concentration of the photoinitiator and bioink. The versatile bioink can be used broadly in a range of applications, including nerve tissue engineering through co-polymerization of the bioink with graphene oxide, and for wound healing as a sealant. Procedure 2 outlines how to apply 3D-printed SF hydrogels embedded with chondrocytes and turbinate-derived mesenchymal stem cells in one specific in vivo application, trachea tissue engineering, which takes 2-9 weeks.
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Affiliation(s)
- Soon Hee Kim
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Heesun Hong
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Olatunji Ajiteru
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Md Tipu Sultan
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Young Jin Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Ji Seung Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Ok Joo Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Hanna Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Hae Sang Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea.,Departments of Otorhinolaryngology-Head and Neck Surgery, Chuncheon Sacred Heart Hospital, School of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Kyu Young Choi
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea.,Department of Otorhinolaryngology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Joong Seob Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea.,Department of Otorhinolaryngology, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Hyung Woo Ju
- Nano-Bio Regenerative Technology Company Ltd., Chuncheon, Republic of Korea
| | - In-Sun Hong
- Department of Molecular Medicine, School of Medicine, Gachon University, Incheon, Republic of Korea
| | - Chan Hum Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, Republic of Korea. .,Departments of Otorhinolaryngology-Head and Neck Surgery, Chuncheon Sacred Heart Hospital, School of Medicine, Hallym University, Chuncheon, Republic of Korea.
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82
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Pérez Quiñones J, Roschger C, Zierer A, Peniche-Covas C, Brüggemann O. Self-Assembled Silk Fibroin-Based Aggregates for Delivery of Camptothecin. Polymers (Basel) 2021; 13:polym13213804. [PMID: 34771362 PMCID: PMC8587969 DOI: 10.3390/polym13213804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 12/24/2022] Open
Abstract
A water-soluble hydrolysate of silk fibroin (SF) (~30 kDa) was esterified with tocopherol, ergocalciferol, and testosterone to form SF aggregates for the controlled delivery of the anticancer drug camptothecin (CPT). Elemental analysis and 1H NMR spectroscopy showed a degree of substitution (DS) on SF of 0.4 to 3.8 mol %. Yields of 58 to 71% on vitamins- and testosterone-grafted SF conjugates were achieved. CPT was efficiently incorporated into the lipophilic core of SF aggregates using a dialysis-precipitation method, achieving drug contents of 6.3-8.5 wt %. FTIR spectra and DSC thermograms showed that tocopherol- and testosterone-grafted SF conjugates predominantly adopted a β-sheet conformation. After the esterification of tyrosine residues on SF chains with the vitamin or testosterone, the hydrodynamic diameters almost doubled or tripled that of SF. The zeta potential values after esterification increased to about -30 mV, which favors the stability of aggregates in aqueous medium. Controlled and almost quantitative release of CPT was achieved after 6 days in PBS at 37 °C, with almost linear release during the first 8 h. MCF-7 cancer cells exhibited good uptake of CPT-loaded SF aggregates after 6 h, causing cell death and cell cycle arrest in the G2/M phase. Substantial uptake of the CPT-loaded aggregates into MCF-7 spheroids was shown after 3 days. Furthermore, all CPT-loaded SF aggregates demonstrated superior toxicity to MCF-7 spheroids compared with parent CPT. Blank SF aggregates induced no hemolysis at pH 6.2 and 7.4, while CPT-loaded SF aggregates provoked hemolysis at pH 6.2 but not at pH 7.4. In contrast, parent CPT caused hemolysis at both pH tested. Therefore, CPT-loaded SF aggregates are promising candidates for chemotherapy.
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Affiliation(s)
- Javier Pérez Quiñones
- Institute of Polymer Chemistry, Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria;
- Correspondence: or ; Tel.: +43-670-4039820
| | - Cornelia Roschger
- Department for Cardiac-, Vascular- and Thoracic Surgery, Johannes Kepler University Linz, Kepler University Hospital GmBH, Altenberger Straße 69, 4040 Linz and Krankenhausstraße 7a, 4020 Linz, Austria; (C.R.); or (A.Z.)
| | - Andreas Zierer
- Department for Cardiac-, Vascular- and Thoracic Surgery, Johannes Kepler University Linz, Kepler University Hospital GmBH, Altenberger Straße 69, 4040 Linz and Krankenhausstraße 7a, 4020 Linz, Austria; (C.R.); or (A.Z.)
| | - Carlos Peniche-Covas
- Facultad de Química, Universidad de La Habana, Zapata S/N entre G y Carlitos Aguirre, La Habana 10400, Cuba;
| | - Oliver Brüggemann
- Institute of Polymer Chemistry, Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria;
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83
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Florczak A, Deptuch T, Kucharczyk K, Dams-Kozlowska H. Systemic and Local Silk-Based Drug Delivery Systems for Cancer Therapy. Cancers (Basel) 2021; 13:5389. [PMID: 34771557 PMCID: PMC8582423 DOI: 10.3390/cancers13215389] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 12/26/2022] Open
Abstract
For years, surgery, radiotherapy, and chemotherapy have been the gold standards to treat cancer, although continuing research has sought a more effective approach. While advances can be seen in the development of anticancer drugs, the tools that can improve their delivery remain a challenge. As anticancer drugs can affect the entire body, the control of their distribution is desirable to prevent systemic toxicity. The application of a suitable drug delivery platform may resolve this problem. Among other materials, silks offer many advantageous properties, including biodegradability, biocompatibility, and the possibility of obtaining a variety of morphological structures. These characteristics allow the exploration of silk for biomedical applications and as a platform for drug delivery. We have reviewed silk structures that can be used for local and systemic drug delivery for use in cancer therapy. After a short description of the most studied silks, we discuss the advantages of using silk for drug delivery. The tables summarize the descriptions of silk structures for the local and systemic transport of anticancer drugs. The most popular techniques for silk particle preparation are presented. Further prospects for using silk as a drug carrier are considered. The application of various silk biomaterials can improve cancer treatment by the controllable delivery of chemotherapeutics, immunotherapeutics, photosensitizers, hormones, nucleotherapeutics, targeted therapeutics (e.g., kinase inhibitors), and inorganic nanoparticles, among others.
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Affiliation(s)
- Anna Florczak
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (T.D.); (K.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Tomasz Deptuch
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (T.D.); (K.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Kamil Kucharczyk
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (T.D.); (K.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Hanna Dams-Kozlowska
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (T.D.); (K.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
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84
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Zhang FX, Liu P, Ding W, Meng QB, Su DH, Zhang QC, Lian RX, Yu BQ, Zhao MD, Dong J, Li YL, Jiang LB. Injectable Mussel-Inspired highly adhesive hydrogel with exosomes for endogenous cell recruitment and cartilage defect regeneration. Biomaterials 2021; 278:121169. [PMID: 34626937 DOI: 10.1016/j.biomaterials.2021.121169] [Citation(s) in RCA: 120] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 09/08/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022]
Abstract
In the early stage of osteoarthritis (OA), cartilage degradation in the surface region leads to superficial cartilage defect. However, enhancing the regeneration of cartilage defect remains a great challenge for existing hydrogel technology because of the weak adhesion to wet tissue. In the present study, an injectable mussel-inspired highly adhesive hydrogel with exosomes was investigated for endogenous cell recruitment and cartilage defect regeneration. The hydrogel with high bonding strength to the wet surface was prepared using a crosslinked network of alginate-dopamine, chondroitin sulfate, and regenerated silk fibroin (AD/CS/RSF). Compared with commercial enbucrilate tissue adhesive, the AD/CS/RSF hydrogel provided a comparative lap shear strength of 120 kPa, with a similar gelation time and a higher capacity for maintaining adhesive strength. The AD/CS/RSF/EXO hydrogel with encapsulated exosomes recruited BMSCs migration and inflation, promoted BMSCs proliferation and differentiation. Most importantly, the AD/CS/RSF/EXO hydrogel accelerated cartilage defect regeneration in situ, and extracellular matrix remodeling after injection in rat patellar grooves. The exosomes released by the hydrogels could recruit BMSCs into the hydrogel and neo-cartilage via the chemokine signaling pathway. Our findings reveal an injectable and adhesive hydrogel for superficial cartilage regeneration, which is a promising approach for minimally treating cartilage defect with arthroscopic assistance.
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Affiliation(s)
- Fang-Xue Zhang
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Peng Liu
- Department of Orthopedic Surgery, Eastern Hospital, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, 610110, China
| | - Wang Ding
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Qing-Bing Meng
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Di-Han Su
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Qi-Chen Zhang
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Rui-Xian Lian
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Bao-Qing Yu
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, No.2800 gongwei road, China
| | - Ming-Dong Zhao
- Department of Orthopaedics, Jinshan Hospital, Fudan University, 201508, Shanghai, China.
| | - Jian Dong
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
| | - Yu-Lin Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China.
| | - Li-Bo Jiang
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
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85
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Lau K, Waterhouse A, Akhavan B, Gao L, Kim HN, Tang F, Whitelock JM, Bilek MM, Lord MS, Rnjak-Kovacina J. Biomimetic silk biomaterials: Perlecan-functionalized silk fibroin for use in blood-contacting devices. Acta Biomater 2021; 132:162-175. [PMID: 33588126 DOI: 10.1016/j.actbio.2021.02.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/22/2021] [Accepted: 02/08/2021] [Indexed: 12/16/2022]
Abstract
Blood compatible materials are required for the development of therapeutic and diagnostic blood contacting devices as blood-material interactions are a key factor dictating device functionality. In this work, we explored biofunctionalization of silk biomaterials with a recombinantly expressed domain V of the human basement membrane proteoglycan perlecan (rDV) towards the development of blood compatible surfaces. Perlecan and rDV are of interest in vascular device development as they uniquely support endothelial cell, while inhibiting smooth muscle cell and platelet interactions. rDV was covalently immobilized on silk biomaterials using plasma immersion ion implantation (PIII), a new method of immobilizing proteins on silk biomaterials that does not rely on modification of specific amino acids in the silk protein chain, and compared to physisorbed and carbodiimide immobilized rDV. Untreated and treated silk biomaterials were examined for interactions with blood components with varying degrees of complexity, including isolated platelets, platelet rich plasma, blood plasma, and whole blood, both under agitated and flow conditions. rDV-biofunctionalized silk biomaterials were shown to be blood compatible in terms of platelet and whole blood interactions and the PIII treatment was shown to be an effective and efficient means of covalently immobilizing rDV in its bioactive form. These biomimetic silk biomaterials are a promising platform toward development of silk-based blood-contacting devices for therapeutic, diagnostic, and research applications. STATEMENT OF SIGNIFICANCE: Blood compatible materials are required for the development of therapeutic and diagnostic blood contacting devices as blood-material interactions are a key factor dictating device functionality. In this work, we explored biofunctionalization of silk biomaterials with a recombinantly expressed domain V (rDV) of the human basement membrane proteoglycan perlecan towards the development of blood compatible surfaces. Perlecan and rDV are of interest in vascular device development as they uniquely support endothelial cell, while inhibiting smooth muscle cell and platelet interactions. rDV was covalently immobilized on silk biomaterials using plasma immersion ion implantation (PIII), a new method of immobilizing proteins on silk biomaterials that does not rely on modification of specific amino acids in the silk protein chain. These biomimetic silk biomaterials are a promising platform toward development of silk-based blood-contacting devices for therapeutic, diagnostic, and research applications.
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86
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Cui Y, Zhang F, Chen G, Yao L, Zhang N, Liu Z, Li Q, Zhang F, Cui Z, Zhang K, Li P, Cheng Y, Zhang S, Chen X. A Stretchable and Transparent Electrode Based on PEGylated Silk Fibroin for In Vivo Dual-Modal Neural-Vascular Activity Probing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100221. [PMID: 34278616 DOI: 10.1002/adma.202100221] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/12/2021] [Indexed: 06/13/2023]
Abstract
Transparent electrodes that form seamless contact and enable optical interrogation at the electrode-brain interface are potentially of high significance for neuroscience studies. Silk hydrogels can offer an ideal platform for transparent neural interfaces owing to their superior biocompatibility. However, conventional silk hydrogels are too weak and have difficulties integrating with highly conductive and stretchable electronics. Here, a transparent and stretchable hydrogel electrode based on poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and PEGylated silk protein is reported. PEGylated silk protein with poly(ethylene glycol) diglycidyl ether (PEGDE) improves the Young's modulus to 1.51-10.73 MPa and the stretchability to ≈400% from conventional silk hydrogels (<10 kPa). The PEGylated silk also helps form a robust interface with PEDOT:PSS thin film, making the hydrogel electrode synergistically incorporate superior stretchability (≈260%), stable electrical performance (≈4 months), and a low sheet resistance (≈160 ± 56 Ω sq-1 ). Finally, the electrode facilitates efficient electrical recording, and stimulation with unobstructed optical interrogation and rat-brain imaging are demonstrated. The highly transparent and stretchable hydrogel electrode offers a practical tool for neuroscience and paves the way for a harmonized tissue-electrode interface.
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Affiliation(s)
- Yajing Cui
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Fan Zhang
- Key Laboratory of Biomedical Engineering of Ministry of Education, Qiushi Academy for Advanced Studies, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Geng Chen
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Lin Yao
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Nan Zhang
- School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, 58 Yanta Road, Xi'an, 710054, China
| | - Zhiyuan Liu
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Qingsong Li
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Feilong Zhang
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zequn Cui
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Keqin Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing, Engineering, Soochow University, Suzhou, 215123, China
| | - Peng Li
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Yuan Cheng
- Monash Suzhou Research Institute, 377 Linquan Street, Suzhou, 215123, China
| | - Shaomin Zhang
- Key Laboratory of Biomedical Engineering of Ministry of Education, Qiushi Academy for Advanced Studies, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Xiaodong Chen
- Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Lab for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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87
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Agostinacchio F, Maniglio D, Callone E, Migliaresi C, Dirè S, Motta A. A novel and selective silk fibroin fragmentation method. SOFT MATTER 2021; 17:6863-6872. [PMID: 34227640 DOI: 10.1039/d1sm00566a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In the tissue-engineering field silk fibroin can be tailored to the target applications by modifying its secondary structure and molecular weight, and functionalizing the molecule with specific active groups linked to the amino acid side chains. To better tune the silk fibroin molecular weight and structural properties, we propose the creation of a lower molecular weight fibroin-derived material through a selective and tunable enzymatic attack on the fibroin chain. Cleavage at specific amino acid sites leads to precise silk fibroin fragmentation and, thus, lower molecular weight materials whose length and properties can be tuned with the enzyme concentration. The cleavage increased the presence of free amino groups, hence reactivity, and aqueous solutions of the resulting polymer remained stable for up to seven days. Films of fragmented fibroin were prepared and characterized, demonstrating that the fragmentation did not affect β-sheet formation after methanol treatment, but differences were detected after the water-vapor annealing process, confirmed by structural and thermal analyses. The adopted fragmentation method is fast, controllable and precise, allowing the creation of a silk-derived material class that is stable in water, with a tunable molecular weight and secondary structure rearrangements, and is thus a versatile tool for the further tunability and modulation of bioengineered constructs.
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Affiliation(s)
- Francesca Agostinacchio
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento, Italy. and BIOTech Research Center, European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Trento, via delle Regole 101, Trento, Italy
| | - Devid Maniglio
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento, Italy. and BIOTech Research Center, European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Trento, via delle Regole 101, Trento, Italy
| | - Emanuela Callone
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento, Italy. and Department of Industrial Engineering, "Klaus Müller" Magnetic Resonance Laboratory, University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Claudio Migliaresi
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento, Italy. and BIOTech Research Center, European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Trento, via delle Regole 101, Trento, Italy
| | - Sandra Dirè
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento, Italy. and Department of Industrial Engineering, "Klaus Müller" Magnetic Resonance Laboratory, University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Antonella Motta
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento, Italy. and BIOTech Research Center, European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Trento, via delle Regole 101, Trento, Italy
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88
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Sahoo JK, Hasturk O, Choi J, Montero MM, Descoteaux ML, Laubach IA, Kaplan DL. Sugar Functionalization of Silks with Pathway-Controlled Substitution and Properties. Adv Biol (Weinh) 2021; 5:e2100388. [PMID: 33929098 PMCID: PMC8266746 DOI: 10.1002/adbi.202100388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/01/2021] [Indexed: 12/20/2022]
Abstract
Silk biomaterials are important for applications in biomedical fields due to their outstanding mechanical properties, biocompatibility, and tunable biodegradation. Chemical functionalization of silk by various chemistries can be leveraged to enhance and tune these features and enable the expansion of silk-based biomaterials into additional fields. Sugars are particularly relevant for intracellular communication, signal transduction events, as well as in hydrated extracellular matrices such as in cartilage, vitreous, and brain tissues. Multiple reaction pathways are demonstrated (carboxylation of serines followed by carbodiimide coupling with glucosamine, carboxylation of tyrosines followed by carbodiimide coupling with glucosamine; direct carbodiimide coupling of the inherent carboxylic acids of silk (aspartic and glutamic acid) with glucosamine) for the covalent conjugation of glucosamine onto silk with characterization by proton nuclear magnetic resonance (1 H-NMR), liquid chromatography tandem mass spectroscopy (LC-MS), water contact angle (WCA), and Fourier transform infrared (FTIR) spectroscopy. The results indicate that different pathways substitute different amounts of glucosamine onto silk chains, with control over resulting material properties, including hydrophobicity/hydrophilicity and biological responses. The aqueous processability of these conjugates into functional material formats (films, sponges) is assessed. These new classes of bio-inspired materials can lead to multifunctional biomaterials for potential applications in different fields of biomedical engineering.
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Affiliation(s)
- Jugal Kishore Sahoo
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, 02155, USA
| | - Onur Hasturk
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, 02155, USA
| | - Jaewon Choi
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, 02155, USA
| | - Maria M Montero
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, 02155, USA
| | - Marc L Descoteaux
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, 02155, USA
| | - Isabel A Laubach
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, 02155, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, 02155, USA
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89
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Shome A, Moses JC, Rather AM, Mandal BB, Manna U. Unconventional and Facile Fabrication of Chemically Reactive Silk Fibroin Sponges for Environmental Remediation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24258-24271. [PMID: 33985331 DOI: 10.1021/acsami.1c03150] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Silk fibroin and silk microfibers, both derived from silk cocoon, have been widely used for prospective biomedical, energy, and environmental applications. However, various complex and catalyst-based approaches have been adopted for chemical modification and integration of different functionalities in silk fibroin-based materials. Here, both tailored water wettability and mechanical property have been associated with silk microfiber reinforced silk fibroin sponges (SMFRSFSs) through the strategic introduction of β-sheets and a facile and catalyst-free chemical reaction at ambient conditions. While the controlled tailoring of β-sheets in the silk fibroin skeletal framework of the sponges allowed us to modulate the compressive modulus, the 1,4-conjugate addition reaction between amine residues of silk (fiber and fibroin) and acrylate groups of a multifunctional cross-linker provided residual chemical reactivity. Further, the chemically "reactive" sponge was postmodified with the selected alkylamines to introduce a wide range of water wettability (from 36 to 161°) without affecting the mechanical property. Thereafter, the silk cocoon-derived and extremely water-repellent sponge was used for environment-friendly cleaning of oil spillages through selective absorption-based and filtration-based oil/water separation at different and severe aqueous conditions. This silk cocoon-derived mechanically tailorable and chemically reactive sponge could also be useful for various biomedical and energy-related applications.
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Affiliation(s)
- Arpita Shome
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam 781039, India
| | - Joseph Christakiran Moses
- Biomaterials and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Kamrup, Assam 781039, India
| | - Adil M Rather
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam 781039, India
| | - Biman B Mandal
- Biomaterials and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Kamrup, Assam 781039, India
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Kamrup, Assam 781039, India
| | - Uttam Manna
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam 781039, India
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Kamrup, Assam 781039, India
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90
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Mann A, Lydon F, Tighe BJ, Suzuki S, Chirila TV. A study of the permeation and water-structuring behavioural properties of PEG modified hydrated silk fibroin membranes. Biomed Phys Eng Express 2021; 7. [PMID: 33930887 DOI: 10.1088/2057-1976/abfd82] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/30/2021] [Indexed: 12/19/2022]
Abstract
The potential of naturally occurring substances as a source of biomedical materials is well-recognised and is being increasingly exploited. Silk fibroin membranes derived fromBombyx morisilk cocoons exemplify this, for example as substrata for the growth of ocular cells with the aim of generating biomaterial-cell constructs for tissue engineering. This study investigated the transport properties of selected silk fibroin membranes under conditions that allowed equilibrium hydration of the membranes to be maintained. The behaviour of natural fibroin membranes was compared with fibroin membranes that have been chemically modified with poly(ethylene glycol). The permeation of the smaller hydrated sodium ion was higher than that of the hydrated calcium ion for all three ethanol treated membranes investigated. The PEG and HRP-modified C membrane, which had the highest water content at 59.6 ± 1.5% exhibited the highest permeation of the three membranes at 95.7 ± 2.8 × 10-8cm2s-1compared with 17.9 ± 0.9 × 10-8cm2s-1and 8.7 ± 1.7 × 10-8cm2s-1for membranes A and B respectively for the NaCl permeant. Poly(ethylene glycol) was used to increase permeability while exploiting the crosslinking capabilities of horseradish peroxidase to increase the compressive strength of the membrane. Importantly, we have established that the permeation behaviour of water-soluble permeants with hydrated radii in the sub-nanometer range is analogous to that of conventional hydrogel polymers.
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Affiliation(s)
- Aisling Mann
- Biomaterials Research Unit, Chemical Engineering and Applied Chemistry, College of Engineering and Physical Sciences, Aston University, Birmingham, B4 7ET, United Kingdom
| | - Fiona Lydon
- Biomaterials Research Unit, Chemical Engineering and Applied Chemistry, College of Engineering and Physical Sciences, Aston University, Birmingham, B4 7ET, United Kingdom
| | - Brian J Tighe
- Biomaterials Research Unit, Chemical Engineering and Applied Chemistry, College of Engineering and Physical Sciences, Aston University, Birmingham, B4 7ET, United Kingdom
| | - Shuko Suzuki
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia
| | - Traian V Chirila
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia.,Science & Engineering Faculty, Queensland University of Technology, Brisbane, Queensland 4001, Australia.,Faculty of Medicine, University of Queensland, Herston, Queensland 4029, Australia.,Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, Queensland 4072, Australia.,Faculty of Science, University of Western Australia, Crawley, Western Australia 6009, Australia
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91
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Chirila TV. Oxygen Permeability of Silk Fibroin Hydrogels and Their Use as Materials for Contact Lenses: A Purposeful Analysis. Gels 2021; 7:gels7020058. [PMID: 34064586 PMCID: PMC8162346 DOI: 10.3390/gels7020058] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 04/24/2021] [Accepted: 05/02/2021] [Indexed: 11/28/2022] Open
Abstract
Fibroin is a fibrous protein that can be conveniently isolated from the silk cocoons produced by the larvae of Bombyx mori silk moth. In its form as a hydrogel, Bombyx mori silk fibroin (BMSF) has been employed in a variety of biomedical applications. When used as substrates for biomaterial-cells constructs in tissue engineering, the oxygen transport characteristics of the BMSF membranes have proved so far to be adequate. However, over the past three decades the BMSF hydrogels have been proposed episodically as materials for the manufacture of contact lenses, an application that depends on substantially elevated oxygen permeability. This review will show that the literature published on the oxygen permeability of BMSF is both limited and controversial. Additionally, there is no evidence that contact lenses made from BMSF have ever reached commercialization. The existing literature is discussed critically, leading to the conclusion that BMSF hydrogels are unsuitable as materials for contact lenses, while also attempting to explain the scarcity of data regarding the oxygen permeability of BMSF. To the author’s knowledge, this review covers all publications related to the topic.
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Affiliation(s)
- Traian V. Chirila
- Queensland Eye Institute, South Brisbane, QLD 4101, Australia; ; Tel.: +61-(0)7-3239-5024
- School of Chemistry & Physics, Queensland University of Technology, Brisbane, QLD 4001, Australia
- Australian Institute of Bioengineering & Nanotechnology (AIBN), The University of Queensland, St Lucia, QLD 4072, Australia
- Faculty of Medicine, The University of Queensland, Herston, QLD 4006, Australia
- School of Molecular Science, The University of Western Australia, Crawley, WA 6009, Australia
- Faculty of Medicine, George E. Palade University of Medicine, Pharmacy, Science & Technology, Târgu Mureş 540139, Romania
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92
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Yu X, Wang L, Xu B, Wang P, Zhou M, Yu Y, Yuan J. Conjugation of CMCS to silk fibroin for tuning mechanical and swelling behaviors of fibroin hydrogels. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110411] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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93
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Banerjee A, Koul V, Bhattacharyya J. Fabrication of In Situ Layered Hydrogel Scaffold for the Co-delivery of PGDF-BB/Chlorhexidine to Regulate Proinflammatory Cytokines, Growth Factors, and MMP-9 in a Diabetic Skin Defect Albino Rat Model. Biomacromolecules 2021; 22:1885-1900. [PMID: 33899465 DOI: 10.1021/acs.biomac.0c01709] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Diabetes mellitus (DM)-associated impairments in wound healing include prolonged inflammation, the overexpression of matrix metalloproteases (MMPs), and low levels of growth factors at the wound site. To this end, a layer-by-layer scaffold (SL-B-L) made of cross-linked silk fibroin and hyaluronic acid is developed to deliver chlorhexidine, an antimicrobial agent and an MMP-9 inhibitor, along with the PDGF-BB protein. SL-B-L exhibited highly porous morphology. Diabetic rats treated with SL-B-L demonstrated an early wound closure, a fully reconstructed epithelial layer by 14 days, and reduced levels of IL-6, TNF-α, TGF-β1, and MMP-9. Interestingly, SL-B-L treatment increased angiogenesis, the bioavailability of collagen, DNA content, and VEGF-A levels. Furthermore, enhanced keratinocyte-fibroblast interaction along with ordered collagen deposition was observed in SL-B-L-treated rats. Most interestingly, when compared with a clinically used scaffold SEESKIN+, SL-B-L outperformed in promoting wound healing in a diabetic rat model by regulating the inflammation while delivering growth factor and the MMP-9 inhibitor.
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Affiliation(s)
- Ahana Banerjee
- Centre for Biomedical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.,Department of Biomedical Engineering, All India Institute of Medical Science, Delhi, New Delhi 110016, India
| | - Veena Koul
- Centre for Biomedical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.,Department of Biomedical Engineering, All India Institute of Medical Science, Delhi, New Delhi 110016, India
| | - Jayanta Bhattacharyya
- Centre for Biomedical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.,Department of Biomedical Engineering, All India Institute of Medical Science, Delhi, New Delhi 110016, India
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94
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Sta. Agueda JRH, Chen Q, Maalihan RD, Ren J, da Silva ÍGM, Dugos NP, Caldona EB, Advincula RC. 3D printing of biomedically relevant polymer materials and biocompatibility. MRS COMMUNICATIONS 2021; 11:197-212. [PMID: 33936866 PMCID: PMC8075026 DOI: 10.1557/s43579-021-00038-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/08/2021] [Indexed: 05/06/2023]
Abstract
ABSTRACT Research on polymer materials for additive manufacturing technology in biomedical applications is as promising as it is numerous, but biocompatibility of printable materials still remains a big challenge. Changes occurring during the 3D-printing processes itself may have adverse effects on the compatibility of the completed print. This prospective will put emphasis on the different additives and processes that can have a direct impact on biocompatibility during and after 3D printing of polymer materials. GRAPHIC ABSTRACT
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Affiliation(s)
- Joseph Rey H. Sta. Agueda
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Department of Manufacturing Engineering and Management, De La Salle University, 1004 Manila, Philippines
- Department of Chemical Engineering, De La Salle University, 1004 Manila, Philippines
| | - Qiyi Chen
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Center for Nanophase Materials and Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37830 USA
| | - Reymark D. Maalihan
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Department of Chemical and Food Engineering and Material Testing and Calibration Center, Batangas State University, 4200 Batangas City, Philippines
| | - Jingbo Ren
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
| | - Ítalo G. M. da Silva
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909 Brazil
| | - Nathaniel P. Dugos
- Department of Chemical Engineering, De La Salle University, 1004 Manila, Philippines
| | - Eugene B. Caldona
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials, University of Tennessee, Knoxville, TN 37996 USA
| | - Rigoberto C. Advincula
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials, University of Tennessee, Knoxville, TN 37996 USA
- Center for Nanophase Materials and Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37830 USA
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95
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Synthesis of functionalized silk-coated chitosan-gold nanoparticles and microparticles for target-directed delivery of antitumor agents. Carbohydr Polym 2021; 258:117659. [PMID: 33593545 DOI: 10.1016/j.carbpol.2021.117659] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/07/2021] [Accepted: 01/12/2021] [Indexed: 01/05/2023]
Abstract
Chemically modified biopolymers derived nanomaterials have shown great potential in drug delivery and live-cell imaging. We have developed two materials, doxorubicin-loaded chitosan-gold nanoparticles and beads, both embedded with functionalized silk fibroin. Nanoparticles with size 8 ± 3 nm were synthesized using chitosan as reducing and stabilizing agent. Beads with 900-1000 μm size were formulated by the ionic gelation technique. Both the materials were coated with functionalized silk fibroin for targeted and sustained drug release properties. The coated materials showed retarded drug release compared to the uncoated ones. The cytotoxicity was assessed in HeLa cell lines, which demonstrated a maximum dose-dependent decrease in cell viability for the cells treated with folate conjugated silk fibroin coated nanoparticles. The live-cell imaging of the nanoparticles unveiled the increased cellular uptake of the coated materials by seven folds than the uncoated ones. Thus, functionalized silk coated materials can be effective drug delivery tools for targeted and sustained drug release.
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96
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Camargo FB, Minami MM, Rossan MR, Magalhães WV, Porto Ferreira VT, Maia Campos PMBG. Prevention of chemically induced hair damage by means of treatment based on proteins and polysaccharides. J Cosmet Dermatol 2021; 21:827-835. [PMID: 33834606 DOI: 10.1111/jocd.14148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/22/2021] [Accepted: 03/05/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND There is currently a great interest not only in developing products for the protection and recovery of chemically damaged hair, but also in developing effective protocols to investigate the impact of chemical treatments and attest the efficacy of innovative hair care products. Among the most relevant cosmetic treatments for hair are bleaching and coloring, which have been shown to significantly impair mechanical and structural properties. OBJECTIVES This study aimed to characterize the damage induced by hair bleaching and coloring and to evaluate the protective effects of a hair care treatment based on integral silk proteins (fibroin and sericin) and vegetable-derived polysaccharides from linseed (Linum usitatissimum L.). METHODS Hair swatches were subjected to different treatment protocols in order to evaluate the protective effect of proposed and benchmark products during bleaching and coloring processes. Tensile tests were performed to assess mechanical properties and improvement in resistance to breakage. Goniophotometric measurements were applied to determine improvement in luster. Hair fiber surface and relief were evaluated by SEM image analysis. RESULTS Swatches bleached and treated with both evaluated products had a significant increase in resistance and reduced structural damage. Swatches colored and treated with both evaluated products showed reduced structural damage, and a significant increase in resistance and luster after the 1st and 5th washes. CONCLUSIONS The proposed product was effective in protecting and repairing bleached and colored swatches, improving resistance and luster and reducing structural damage. By applying complementary techniques within a reliable evaluation protocol, it was possible to attest the protective properties of the product under study.
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97
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Mu X, Agostinacchio F, Xiang N, Pei Y, Khan Y, Guo C, Cebe P, Motta A, Kaplan DL. Recent Advances in 3D Printing with Protein-Based Inks. Prog Polym Sci 2021; 115:101375. [PMID: 33776158 PMCID: PMC7996313 DOI: 10.1016/j.progpolymsci.2021.101375] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Three-dimensional (3D) printing is a transformative manufacturing strategy, allowing rapid prototyping, customization, and flexible manipulation of structure-property relationships. Proteins are particularly appealing to formulate inks for 3D printing as they serve as essential structural components of living systems, provide a support presence in and around cells and for tissue functions, and also provide the basis for many essential ex vivo secreted structures in nature. Protein-based inks are beneficial in vivo due to their mechanics, chemical and physical match to the specific tissue, and full degradability, while also to promoting implant-host integration and serving as an interface between technology and biology. Exploiting the biological, chemical, and physical features of protein-based inks can provide key opportunities to meet the needs of tissue engineering and regenerative medicine. Despite these benefits, protein-based inks impose nontrivial challenges to 3D printing such as concentration and rheological features and reconstitution of the structural hierarchy observed in nature that is a source of the robust mechanics and functions of these materials. This review introduces photo-crosslinking mechanisms and rheological principles that underpins a variety of 3D printing techniques. The review also highlights recent advances in the design, development, and biomedical utility of monolithic and composite inks from a range of proteins, including collagen, silk, fibrinogen, and others. One particular focus throughout the review is to introduce unique material characteristics of proteins, including amino acid sequences, molecular assembly, and secondary conformations, which are useful for designing printing inks and for controlling the printed structures. Future perspectives of 3D printing with protein-based inks are also provided to support the promising spectrum of biomedical research accessible to these materials.
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Affiliation(s)
- Xuan Mu
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Francesca Agostinacchio
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento 38123, Italy
| | - Ning Xiang
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Ying Pei
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yousef Khan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Chengchen Guo
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Peggy Cebe
- Department of Physics and Astronomy, Tufts University, Medford, MA 02155, USA
| | - Antonella Motta
- Department of Industrial Engineering, University of Trento, via Sommarive 9, Trento 38123, Italy
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
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98
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Moh ESX, Packer NH. Enzymatic Azido-GalNAc-Functionalized Silk Fibroin for Click Chemistry Conjugation. Biomacromolecules 2021; 22:1752-1755. [PMID: 33765388 DOI: 10.1021/acs.biomac.0c01791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Silk is a popular protein biomaterial that has been used for various purposes such as tissue scaffolding, textiles and hydrogels. Various methods for covalent conjugation of functional molecules such as small molecule sensors and enzymes have been developed to create functionalized silk biomaterials. Here, we report a method for silk functionalization by using O-GalNAc-transferases and azide-modified UDP-GalNAc nucleotide sugar substrates to incorporate azide functional groups onto the silk fibroin protein for functionalization with cycloalkynes by click chemistry. Using ppGalNAc-T1 and T13 enzymes, we could transfer azide-modified GalNAc monosaccharides onto fibroin and as a proof of concept, conjugated a strain-alkyne-functionalized Cy5 fluorophore to produce a Cy5-conjugated fibroin hydrogel. This facile azido functionalization of the silk has the potential for attachment of any cycloalkyne moiety.
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Affiliation(s)
- Edward S X Moh
- ARC Centre of Excellence for Nanoscale BioPhotonics, Department of Molecular Sciences, Macquarie University, North Ryde, NSW 2109, Sydney, Australia
| | - Nicolle H Packer
- ARC Centre of Excellence for Nanoscale BioPhotonics, Department of Molecular Sciences, Macquarie University, North Ryde, NSW 2109, Sydney, Australia
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99
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Lin Z, Meng Z, Miao H, Wu R, Qiu W, Lin N, Liu XY. Biomimetic Salinity Power Generation Based on Silk Fibroin Ion-Exchange Membranes. ACS NANO 2021; 15:5649-5660. [PMID: 33660992 DOI: 10.1021/acsnano.1c00820] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Powering implanted medical devices (IMDs) is a long-term challenge since their use in biological environments requires a long-term and stable supply of power and a biocompatible and biodegradable battery system. Here, silk fibroin-based ion-exchange membranes are developed using bionics principles for reverse electrodialysis devices (REDs). Silk fibroin nanofibril (SNF) membranes are negatively and positively modified, resulting in strong cation and anion selectivity that regulates ion diffusion to generate electric power. These oppositely charged SNF membranes are assembled with Ag/AgCl electrodes into a multicompartment RED. By filling them with 10 and 0.001 mM NaCl solutions, a maximum output power density of 0.59 mW/m2 at an external loading resistance of 66 kΩ is obtained. In addition, 10 pairs of SNF membranes produce a considerable voltage of 1.58 V. This work is a proof of concept that key components of battery systems can be fabricated with protein materials. Combined with the emergence of water-based battery technologies, the findings in this study provide insights for the construction of tissue-integrated batteries for the next generation of IMDs.
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Affiliation(s)
- Zaifu Lin
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Materials, Xiamen University, 422 Siming South Road, Xiamen, 361005, People's Republic of China
| | - Zhaohui Meng
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Materials, Xiamen University, 422 Siming South Road, Xiamen, 361005, People's Republic of China
| | - Hao Miao
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Materials, Xiamen University, 422 Siming South Road, Xiamen, 361005, People's Republic of China
| | - Ronghui Wu
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Materials, Xiamen University, 422 Siming South Road, Xiamen, 361005, People's Republic of China
| | - Wu Qiu
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Republic of Singapore
| | - Naibo Lin
- Research Institution for Biomimetics and Soft Matter, Fujian Key Provincial Laboratory for Soft Functional Materials Research, College of Materials, Xiamen University, 422 Siming South Road, Xiamen, 361005, People's Republic of China
| | - Xiang Yang Liu
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Republic of Singapore
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100
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Lassenberger A, Martel A, Porcar L, Baccile N. Interpenetrated biosurfactant-silk fibroin networks - a SANS study. SOFT MATTER 2021; 17:2302-2314. [PMID: 33480918 DOI: 10.1039/d0sm01869d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Silk fibroin (SF) based hydrogels have been exploited for years for their inherent biocompatibility and favorable mechanical properties which makes them interesting for biotechnology applications. In this study we investigate silk based composite hydrogels where pH-sensitive, anionic biosurfactant assemblies (sophorolipids SL-C18 : 1 and SL-C18 : 0), are employed to improve the present properties of SF. Results suggest that the presence of SL surfactant assemblies leads to faster gelling of SF by accelerating the refolding from random coil to β-sheet as shown by infrared and UV-visible spectroscopy. Small angle neutron scattering (SANS) including contrast matching studies show that SF and SL assemblies coexist in a fibrillary network that is, in the case of SL-C18 : 0, interpenetrating. The resulting overall network structure in composite gels is slightly more affected by SL-C18 : 1 than by SL-C18 : 0, whereas the structure of both SF and surfactant assemblies remains unchanged. No disassembly of SL surfactant structures is observed, which gives a new perspective on SF-surfactant interactions. The hydrophobic effect within SF is favored in the presence of SL, leading to faster refolding of SF into β-sheet conformation. The presented composite gels, being an interpenetrating network of which one compound (SL-C18 : 0) can be tweaked by pH, open an interesting option towards improved workability and stimuli responsive mechanical properties of SF based hydrogels with possible applications in controlled cell culture and tissue engineering or drug delivery. The presented SANS analysis approach has the potential to be expanded to other protein-surfactant systems and composite hydrogels.
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Affiliation(s)
- Andrea Lassenberger
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble Cedex 9, France.
| | - Anne Martel
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble Cedex 9, France.
| | - Lionel Porcar
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble Cedex 9, France.
| | - Niki Baccile
- Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, Sorbonne Université, Paris F-75005, France.
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