151
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Gherrak F, Hadjsadok A, Lefnaoui S. Implementation and in vitro characterization of calcium-free in situ gelling oral reconstituted suspension for potential overweight treatment. Drug Dev Ind Pharm 2020; 47:36-50. [PMID: 33191791 DOI: 10.1080/03639045.2020.1851242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In this work, oral granules that were easily dissolved in aqueous dispersion, were prepared. These oral suspensions were formulated with sodium alginate (AlgNa), chitosan (CHI) and sodium carboxymethylcellulose (CMC Na). The gels were formulated by pouring the suspensions into 150 ml of simulated gastric fluid (SGF) pH 1.2 at 37° C. The in-situ gelling mechanism was based on the ionization states of the three biopolymers as a function of the pH of the medium. Fourier transform infrared analysis of gels confirmed the interactions between alginate and chitosan. According to the scanning electron microscopy analysis, the gels were characterized by a firm and homogeneous structure. The obtained values of the elastic storage modulus, G', varied between 10 1 and 10 7 Pa. The eliminated volume of the unabsorbed liquid by the gels fluctuated between 25% and 55% of the total liquid volume. The quality of the gels was improved when a maximum concentration of alginate ( 4 g / 100 ml ) , a minimum concentration of chitosan ( 0.5 g / 100 ml ) and a maximum amount of carboxymethylcellulose ( 4 g / 100 ml ) were used. The value of their elastic modulus, G' was around 10 5 Pa and the residual unabsorbed volume of the liquid was 25% of the total liquid volume. According to the obtained results, the prepared gels could induce a feeling of fullness by stimulating the gastric distension and they could potentially be applied as anti-obesity medication.
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Affiliation(s)
- Fouzia Gherrak
- Laboratoire de l'Analyse Fonctionnelle des Procédés Chimiques (LAFPC), University of Blida1, Blida, Algeria
| | - Abdelkader Hadjsadok
- Laboratoire de l'Analyse Fonctionnelle des Procédés Chimiques (LAFPC), University of Blida1, Blida, Algeria
| | - Sonia Lefnaoui
- Faculty of Sciences, University Dr. Yahia Fares of Medea, Medea, Algeria
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152
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Biomimetic hydrogels based on L-Dopa conjugated gelatin as pH-responsive drug carriers and antimicrobial agents. Colloids Surf B Biointerfaces 2020; 196:111316. [DOI: 10.1016/j.colsurfb.2020.111316] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/01/2020] [Accepted: 08/09/2020] [Indexed: 12/13/2022]
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153
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Ailincai D, Porzio W, Marin L. Hydrogels Based on Imino-Chitosan Amphiphiles as a Matrix for Drug Delivery Systems. Polymers (Basel) 2020; 12:E2687. [PMID: 33202586 PMCID: PMC7696980 DOI: 10.3390/polym12112687] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/03/2020] [Accepted: 11/12/2020] [Indexed: 12/13/2022] Open
Abstract
This paper reports new formulations based on chitosan, citral, and diclofenac sodium salt (DCF). The central idea was to encapsulate an anionic drug into a polycationic hydrogel matrix in order to increase the intermolecular forces between them and thus to ensure slower drug release, while citral was used as a penetration enhancer to assure efficient delivery of the drug. Hydrogels without drug were also synthesized and used as a reference. The structure, morphology, and supramolecular architecture of the drug delivery systems were evaluated by FTIR spectroscopy, scanning electron microscopy, polarized optical microscopy, and wide-angle X-ray diffraction. The drug release kinetics was monitored in vitro by UV-VIS spectroscopy, in physiological conditions, while the enzymatic and hydrolytic degradability of the hydrogels were evaluated in the presence of lysozyme and phosphate buffer saline (PBS), at 37 °C. All of the data revealed that the anionic DCF was strongly anchored into the polycationic matrix and the drug was slowly released over 7 days. Moreover, the release rate can be controlled by simple variation of the molar ratio between the polycationic chitosan and lipophilic citral.
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Affiliation(s)
- Daniela Ailincai
- “Petru Poni” Institute of Macromolecular Chemistry, 400487 Iasi, Romania;
| | - William Porzio
- Institute of Chemical Sciences and Technologies, “G. Natta“ Consiglio Nazionale delle Ricerche (SCI-TEC) via A. Corti, 12 20133 Milano, Italy;
| | - Luminita Marin
- “Petru Poni” Institute of Macromolecular Chemistry, 400487 Iasi, Romania;
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154
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Arévalo-Pérez R, Maderuelo C, Lanao JM. Recent advances in colon drug delivery systems. J Control Release 2020; 327:703-724. [DOI: 10.1016/j.jconrel.2020.09.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/11/2020] [Accepted: 09/12/2020] [Indexed: 12/12/2022]
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155
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Farhat W, Chatelain F, Marret A, Faivre L, Arakelian L, Cattan P, Fuchs A. Trends in 3D bioprinting for esophageal tissue repair and reconstruction. Biomaterials 2020; 267:120465. [PMID: 33129189 DOI: 10.1016/j.biomaterials.2020.120465] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/15/2020] [Accepted: 10/18/2020] [Indexed: 02/08/2023]
Abstract
In esophageal pathologies, such as esophageal atresia, cancers, caustic burns, or post-operative stenosis, esophageal replacement is performed by using parts of the gastrointestinal tract to restore nutritional autonomy. However, this surgical procedure most often does not lead to complete functional recovery and is instead associated with many complications resulting in a decrease in the quality of life and survival rate. Esophageal tissue engineering (ETE) aims at repairing the defective esophagus and is considered as a promising therapeutic alternative. Noteworthy progress has recently been made in the ETE research area but strong challenges remain to replicate the structural and functional integrity of the esophagus with the approaches currently being developed. Within this context, 3D bioprinting is emerging as a new technology to facilitate the patterning of both cellular and acellular bioinks into well-organized 3D functional structures. Here, we present a comprehensive overview of the recent advances in tissue engineering for esophageal reconstruction with a specific focus on 3D bioprinting approaches in ETE. Current biofabrication techniques and bioink features are highlighted, and these are discussed in view of the complexity of the native esophagus that the designed substitute needs to replace. Finally, perspectives on recent strategies for fabricating other tubular organ substitutes via 3D bioprinting are discussed briefly for their potential in ETE applications.
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Affiliation(s)
- Wissam Farhat
- Université de Paris, Inserm, U976 HIPI, F-75006, Paris, France; AP-HP, Hôpital Saint-Louis, 1 avenue Vellefaux, F-75010, Paris, France; CEA, IRIG, F-38000, Grenoble, France
| | - François Chatelain
- Université de Paris, Inserm, U976 HIPI, F-75006, Paris, France; AP-HP, Hôpital Saint-Louis, 1 avenue Vellefaux, F-75010, Paris, France; CEA, IRIG, F-38000, Grenoble, France
| | - Auriane Marret
- Université de Paris, Inserm, U976 HIPI, F-75006, Paris, France; AP-HP, Hôpital Saint-Louis, 1 avenue Vellefaux, F-75010, Paris, France; CEA, IRIG, F-38000, Grenoble, France
| | - Lionel Faivre
- Université de Paris, Inserm, U976 HIPI, F-75006, Paris, France; Assistance Publique - Hôpitaux de Paris, Unité de Thérapie Cellulaire, Hôpital Saint-Louis, Paris, France
| | - Lousineh Arakelian
- Université de Paris, Inserm, U976 HIPI, F-75006, Paris, France; Assistance Publique - Hôpitaux de Paris, Unité de Thérapie Cellulaire, Hôpital Saint-Louis, Paris, France
| | - Pierre Cattan
- Université de Paris, Inserm, U976 HIPI, F-75006, Paris, France; Assistance Publique - Hôpitaux de Paris, Service de Chirurgie Digestive, Hôpital Saint-Louis, Paris, France
| | - Alexandra Fuchs
- Université de Paris, Inserm, U976 HIPI, F-75006, Paris, France; AP-HP, Hôpital Saint-Louis, 1 avenue Vellefaux, F-75010, Paris, France; CEA, IRIG, F-38000, Grenoble, France.
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156
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Kumar S, Prasad M, Rao R. Topical delivery of clobetasol propionate loaded nanosponge hydrogel for effective treatment of psoriasis: Formulation, physicochemical characterization, antipsoriatic potential and biochemical estimation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111605. [PMID: 33321649 DOI: 10.1016/j.msec.2020.111605] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 10/03/2020] [Accepted: 10/05/2020] [Indexed: 12/23/2022]
Abstract
Clobetasol propionate (CP), a superpotent topical corticosteroid, holds great promise for psoriasis treatment. However, common side effects like skin atrophy, steroidal acne, hypopigmentation and allergic contact dermatitis associated with it, hamper its utility for topical application. Taking this into consideration, the current work was aimed to fabricate CP loaded cyclodextrin nanosponge (CDNS) based hydrogel, to alleviate the aforementioned side effects, while controlling drug release. Nanosponges were crafted employing β-cyclodextrin (polymer) and diphenyl carbonate (cross linker) and evaluated appropriately. The selected formulation augmented 45 folds water solubility, with respect to pure CP. The formulation possessed entrapment efficiency (56.33 ± 0.94%), particle size (194.27 ± 49.24 nm) with polydispersitive index (0.498 ± 0.095), surface charge (-21.83 ± 0.95 mV) and drug release (86.25 ± 0.28%). Selected CP-CDNS were found crystalline and uniform in size. Further, in vitro cell viability analysis has been performed using THP1 cells to evaluate cytocompatibility of CP nanosponges. The chosen CP nanosponges were then embedded into Carbopol hydrogel, and characterized for rheological behaviour, spreadability, and texture profile. The developed nanoformulations were also assessed in vivo using mouse tail model. Histological and biochemical assessments have been conducted to explore their antipsoriatic activity via oxidative stress biomarkers. The degree of orthokeratosis was observed remarkably (p < 0.001) amplified by CP-CDNS14 hydrogel as compared to untreated group (control) and CP hydrogel. In addition, drug activity and change in epidermal thickness were found significant. Our findings altogether advocated the profound potential of prepared CP nanogel in the topical treatment of psoriasis, with improved patient compliance.
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Affiliation(s)
- Sunil Kumar
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar 125001, Haryana, India
| | - Minakshi Prasad
- Department of Animal Biotechnology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar 125004, Haryana, India
| | - Rekha Rao
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar 125001, Haryana, India.
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157
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Sennakesavan G, Mostakhdemin M, Dkhar L, Seyfoddin A, Fatihhi S. Acrylic acid/acrylamide based hydrogels and its properties - A review. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109308] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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158
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Samadian H, Maleki H, Allahyari Z, Jaymand M. Natural polymers-based light-induced hydrogels: Promising biomaterials for biomedical applications. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213432] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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159
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Peng F, Zhang W, Qiu F. Self-assembling Peptides in Current Nanomedicine: Versatile Nanomaterials for Drug Delivery. Curr Med Chem 2020; 27:4855-4881. [PMID: 31309877 DOI: 10.2174/0929867326666190712154021] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 05/27/2019] [Accepted: 06/11/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND The development of modern nanomedicine greatly depends on the involvement of novel materials as drug delivery system. In order to maximize the therapeutic effects of drugs and minimize their side effects, a number of natural or synthetic materials have been widely investigated for drug delivery. Among these materials, biomimetic self-assembling peptides (SAPs) have received more attention in recent years. Considering the rapidly growing number of SAPs designed for drug delivery, a summary of how SAPs-based drug delivery systems were designed, would be beneficial. METHOD We outlined research works on different SAPs that have been investigated as carriers for different drugs, focusing on the design of SAPs nanomaterials and how they were used for drug delivery in different strategies. RESULTS Based on the principle rules of chemical complementarity and structural compatibility, SAPs such as ionic self-complementary peptide, peptide amphiphile and surfactant-like peptide could be designed. Determined by the features of peptide materials and the drugs to be delivered, different strategies such as hydrogel embedding, hydrophobic interaction, electrostatic interaction, covalent conjugation or the combination of them could be employed to fabricate SAPs-drug complex, which could achieve slow release, targeted or environment-responsive delivery of drugs. Furthermore, some SAPs could also be combined with other types of materials for drug delivery, or even act as drug by themselves. CONCLUSION Various types of SAPs have been designed and used for drug delivery following various strategies, suggesting that SAPs as a category of versatile nanomaterials have promising potential in the field of nanomedicine.
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Affiliation(s)
- Fei Peng
- Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wensheng Zhang
- Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Feng Qiu
- Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
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160
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Drozdov AD, Christiansen JD. Tension-compression asymmetry in the mechanical response of hydrogels. J Mech Behav Biomed Mater 2020; 110:103851. [PMID: 32957177 DOI: 10.1016/j.jmbbm.2020.103851] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/03/2020] [Accepted: 05/05/2020] [Indexed: 12/14/2022]
Abstract
Two factors play the key role in application of hydrogels as biomedical implants (for example, for replacement of damaged intervertebral discs and repair of spinal cord injuries): their stiffness and strength (measured in tensile tests) and mechanical integrity (estimated under uniaxial compression). Observations show a pronounced difference between the responses of hydrogels under tension and compression (the Young's moduli can differ by two orders of magnitude), which is conventionally referred to as the tension-compression asymmetry (TCA). A constitutive model is developed for the mechanical behavior of hydrogels, where TCA is described within the viscoplasticity theory (plastic flow is treated as sliding of junctions between chains with respect to their reference positions). The governing equations involve five material constants with transparent physical meaning. These quantities are found by fitting stress-strain diagrams under tension and compression on a number of pristine and nanocomposite hydrogels with various kinds of chemical and physical bonds between chains. Good agreement is demonstrated between the experimental data and results of simulation. The influence of volume fraction of nanoparticles, concentration of cross-links, and topology of a polymer network on material parameters is analyzed numerically.
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Affiliation(s)
- A D Drozdov
- Department of Materials and Production, Aalborg University, Fibigerstraede 16, Aalborg, 9220, Denmark.
| | - J deC Christiansen
- Department of Materials and Production, Aalborg University, Fibigerstraede 16, Aalborg, 9220, Denmark
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161
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Prusty K, Swain SK. Polypropylene oxide/polyethylene oxide‐cellulose hybrid nanocomposite hydrogels as drug delivery vehicle. J Appl Polym Sci 2020. [DOI: 10.1002/app.49921] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Kalyani Prusty
- Department of Chemistry Veer Surendra Sai University of Technology Sambalpur Odisha India
| | - Sarat K. Swain
- Department of Chemistry Veer Surendra Sai University of Technology Sambalpur Odisha India
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162
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Semiha Kundakci. Synthesis of Methacrylamide/Chitosan Polymeric Cryogels and Swelling/Dye Sorption Properties. POLYMER SCIENCE SERIES A 2020. [DOI: 10.1134/s0965545x20050107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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163
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Smagul S, Kim Y, Smagulova A, Raziyeva K, Nurkesh A, Saparov A. Biomaterials Loaded with Growth Factors/Cytokines and Stem Cells for Cardiac Tissue Regeneration. Int J Mol Sci 2020; 21:E5952. [PMID: 32824966 PMCID: PMC7504169 DOI: 10.3390/ijms21175952] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 12/17/2022] Open
Abstract
Myocardial infarction causes cardiac tissue damage and the release of damage-associated molecular patterns leads to activation of the immune system, production of inflammatory mediators, and migration of various cells to the site of infarction. This complex response further aggravates tissue damage by generating oxidative stress, but it eventually heals the infarction site with the formation of fibrotic tissue and left ventricle remodeling. However, the limited self-renewal capability of cardiomyocytes cannot support sufficient cardiac tissue regeneration after extensive myocardial injury, thus, leading to an irreversible decline in heart function. Approaches to improve cardiac tissue regeneration include transplantation of stem cells and delivery of inflammation modulatory and wound healing factors. Nevertheless, the harsh environment at the site of infarction, which consists of, but is not limited to, oxidative stress, hypoxia, and deficiency of nutrients, is detrimental to stem cell survival and the bioactivity of the delivered factors. The use of biomaterials represents a unique and innovative approach for protecting the loaded factors from degradation, decreasing side effects by reducing the used dosage, and increasing the retention and survival rate of the loaded cells. Biomaterials with loaded stem cells and immunomodulating and tissue-regenerating factors can be used to ameliorate inflammation, improve angiogenesis, reduce fibrosis, and generate functional cardiac tissue. In this review, we discuss recent findings in the utilization of biomaterials to enhance cytokine/growth factor and stem cell therapy for cardiac tissue regeneration in small animals with myocardial infarction.
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Affiliation(s)
| | | | | | | | | | - Arman Saparov
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (S.S.); (Y.K.); (A.S.); (K.R.); (A.N.)
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164
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Hanson BS, Dougan L. Network Growth and Structural Characteristics of Globular Protein Hydrogels. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00890] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Benjamin S. Hanson
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
| | - Lorna Dougan
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K
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165
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Nouri Z, Fakhri S, Nouri K, Wallace CE, Farzaei MH, Bishayee A. Targeting Multiple Signaling Pathways in Cancer: The Rutin Therapeutic Approach. Cancers (Basel) 2020; 12:E2276. [PMID: 32823876 PMCID: PMC7463935 DOI: 10.3390/cancers12082276] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 12/21/2022] Open
Abstract
Multiple dysregulated signaling pathways are implicated in the pathogenesis of cancer. The conventional therapies used in cancer prevention/treatment suffer from low efficacy, considerable toxicity, and high cost. Hence, the discovery and development of novel multi-targeted agents to attenuate the dysregulated signaling in cancer is of great importance. In recent decades, phytochemicals from dietary and medicinal plants have been successfully introduced as alternative anticancer agents due to their ability to modulate numerous oncogenic and oncosuppressive signaling pathways. Rutin (also known as rutoside, quercetin-3-O-rutinoside and sophorin) is an active plant-derived flavonoid that is widely distributed in various vegetables, fruits, and medicinal plants, including asparagus, buckwheat, apricots, apples, cherries, grapes, grapefruit, plums, oranges, and tea. Rutin has been shown to target various inflammatory, apoptotic, autophagic, and angiogenic signaling mediators, including nuclear factor-κB, tumor necrosis factor-α, interleukins, light chain 3/Beclin, B cell lymphoma 2 (Bcl-2), Bcl-2 associated X protein, caspases, and vascular endothelial growth factor. A comprehensive and critical analysis of the anticancer potential of rutin and associated molecular targets amongst various cancer types has not been performed previously. Accordingly, the purpose of this review is to present an up-to-date and critical evaluation of multiple cellular and molecular mechanisms through which the anticancer effects of rutin are known to be exerted. The current challenges and limitations as well as future directions of research are also discussed.
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Affiliation(s)
- Zeinab Nouri
- Student Research Committee, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah 6714415153, Iran;
| | - Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran;
| | - Keyvan Nouri
- Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran;
| | - Carly E. Wallace
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA;
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran;
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA;
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166
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Gehlen DB, Jürgens N, Omidinia-Anarkoli A, Haraszti T, George J, Walther A, Ye H, De Laporte L. Granular Cellulose Nanofibril Hydrogel Scaffolds for 3D Cell Cultivation. Macromol Rapid Commun 2020; 41:e2000191. [PMID: 32783361 DOI: 10.1002/marc.202000191] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/06/2020] [Indexed: 12/15/2022]
Abstract
The replacement of diseased and damaged organs remains an challenge in modern medicine. However, through the use of tissue engineering techniques, it may soon be possible to (re)generate tissues and organs using artificial scaffolds. For example, hydrogel networks made from hydrophilic precursor solutions can replicate many properties found in the natural extracellular matrix (ECM) but often lack the dynamic nature of the ECM, as many covalently crosslinked hydrogels possess elastic and static networks with nanoscale pores hindering cell migration without being degradable. To overcome this, macroporous colloidal hydrogels can be prepared to facilitate cell infiltration. Here, an easy method is presented to fabricate granular cellulose nanofibril hydrogel (CNF) scaffolds as porous networks for 3D cell cultivation. CNF is an abundant natural and highly biocompatible material that supports cell adhesion. Granular CNF scaffolds are generated by pre-crosslinking CNF using calcium and subsequently pressing the gel through micrometer-sized nylon meshes. The granular solution is mixed with fibroblasts and crosslinked with cell culture medium. The obtained granular CNF scaffold is significantly softer and enables well-distributed fibroblast growth. This cost-effective material combined with this efficient and facile fabrication technique allows for 3D cell cultivation in an upscalable manner.
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Affiliation(s)
- David B Gehlen
- DWI-Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52074, Aachen, Germany.,Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1-2, D-52074, Aachen, Germany
| | - Niklas Jürgens
- DWI-Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52074, Aachen, Germany.,Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1-2, D-52074, Aachen, Germany
| | - Abdolrahman Omidinia-Anarkoli
- DWI-Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52074, Aachen, Germany.,Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1-2, D-52074, Aachen, Germany
| | - Tamás Haraszti
- DWI-Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52074, Aachen, Germany.,Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1-2, D-52074, Aachen, Germany
| | - Julian George
- Institute of Biomedical Engineering, Department of Engineering Science, Old Road Campus Research Building, University of Oxford, Headington, OX3 7DQ, Oxford, UK
| | - Andreas Walther
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, D-79110, Freiburg, Germany
| | - Hua Ye
- Institute of Biomedical Engineering, Department of Engineering Science, Old Road Campus Research Building, University of Oxford, Headington, OX3 7DQ, Oxford, UK
| | - Laura De Laporte
- DWI-Leibniz-Institute for Interactive Materials, Forckenbeckstr. 50, D-52074, Aachen, Germany.,Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1-2, D-52074, Aachen, Germany.,Department of Advanced Materials for Biomedicine, Institute of Applied Medical Engineering, RWTH Aachen University, 52074, Aachen, Germany
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167
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Tavakoli J, Wang J, Chuah C, Tang Y. Natural-based Hydrogels: A Journey from Simple to Smart Networks for Medical Examination. Curr Med Chem 2020; 27:2704-2733. [PMID: 31418656 DOI: 10.2174/0929867326666190816125144] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 07/22/2019] [Accepted: 08/01/2019] [Indexed: 02/07/2023]
Abstract
Natural hydrogels, due to their unique biological properties, have been used extensively for various medical and clinical examinations that are performed to investigate the signs of disease. Recently, complex-crosslinking strategies improved the mechanical properties and advanced approaches have resulted in the introduction of naturally derived hydrogels that exhibit high biocompatibility, with shape memory and self-healing characteristics. Moreover, the creation of self-assembled natural hydrogels under physiological conditions has provided the opportunity to engineer fine-tuning properties. To highlight recent studies of natural-based hydrogels and their applications for medical investigation, a critical review was undertaken using published papers from the Science Direct database. This review presents different natural-based hydrogels (natural, natural-synthetic hybrid and complex-crosslinked hydrogels), their historical evolution, and recent studies of medical examination applications. The application of natural-based hydrogels in the design and fabrication of biosensors, catheters and medical electrodes, detection of cancer, targeted delivery of imaging compounds (bioimaging) and fabrication of fluorescent bioprobes is summarised here. Without doubt, in future, more useful and practical concepts will be derived to identify natural-based hydrogels for a wide range of clinical examination applications.
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Affiliation(s)
- Javad Tavakoli
- Institute of NanoScale Science and Technology, Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia 5042, Australia.,School of Biomedical Engineering, University of Technology Sydney, Ultimo, 2007 NSW, Australia
| | - Jing Wang
- Institute of NanoScale Science and Technology, Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia 5042, Australia.,Key Laboratory of Advanced Textile Composite Materials of Ministry of Education, Institute of Textile Composite, School of Textile, Tianjin Polytechnic University, Tianjin 300387, China
| | - Clarence Chuah
- Institute of NanoScale Science and Technology, Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia 5042, Australia
| | - Youhong Tang
- Institute of NanoScale Science and Technology, Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia 5042, Australia
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168
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Yu X, Zhang T, Li Y. 3D Printing and Bioprinting Nerve Conduits for Neural Tissue Engineering. Polymers (Basel) 2020; 12:E1637. [PMID: 32717878 PMCID: PMC7465920 DOI: 10.3390/polym12081637] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/17/2020] [Accepted: 07/21/2020] [Indexed: 12/14/2022] Open
Abstract
Fabrication of nerve conduits for perfectly repairing or replacing damaged peripheral nerve is an urgent demand worldwide, but it is also a formidable clinical challenge. In the last decade, with the rapid development of manufacture technologies, 3D printing and bioprinting have been becoming remarkable stars in the field of neural engineering. In this review, we explore that the biomaterial inks (hydrogels, thermoplastic, and thermoset polyesters and composite) and bioinks have been selected for 3D printing and bioprinting of peripheral nerve conduits. This review covers 3D manufacturing technologies, including extrusion printing, inkjet printing, stereolithography, and bioprinting with inclusion of cells, bioactive molecules, and drugs. Finally, an outlook on the future directions of 3D printing and 4D printing in customizable nerve therapies is presented.
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Affiliation(s)
- Xiaoling Yu
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China;
| | - Tian Zhang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China;
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Yuan Li
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China;
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169
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Vázquez-González M, Willner I. Stimuli-Responsive Biomolecule-Based Hydrogels and Their Applications. Angew Chem Int Ed Engl 2020; 59:15342-15377. [PMID: 31730715 DOI: 10.1002/anie.201907670] [Citation(s) in RCA: 184] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/10/2019] [Indexed: 12/16/2022]
Abstract
This Review presents polysaccharides, oligosaccharides, nucleic acids, peptides, and proteins as functional stimuli-responsive polymer scaffolds that yield hydrogels with controlled stiffness. Different physical or chemical triggers can be used to structurally reconfigure the crosslinking units and control the stiffness of the hydrogels. The integration of stimuli-responsive supramolecular complexes and stimuli-responsive biomolecular units as crosslinkers leads to hybrid hydrogels undergoing reversible triggered transitions across different stiffness states. Different applications of stimuli-responsive biomolecule-based hydrogels are discussed. The assembly of stimuli-responsive biomolecule-based hydrogel films on surfaces and their applications are discussed. The coating of drug-loaded nanoparticles with stimuli-responsive hydrogels for controlled drug release is also presented.
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Affiliation(s)
| | - Itamar Willner
- Institute of Chemistry, Hebrew University of Jerusalem, Jerusalem, 91904, Israel
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170
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Vázquez‐González M, Willner I. Stimuliresponsive, auf Biomolekülen basierende Hydrogele und ihre Anwendungen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201907670] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Itamar Willner
- Institute of Chemistry Hebrew University of Jerusalem Jerusalem 91904 Israel
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171
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Samadian H, Maleki H, Fathollahi A, Salehi M, Gholizadeh S, Derakhshankhah H, Allahyari Z, Jaymand M. Naturally occurring biological macromolecules-based hydrogels: Potential biomaterials for peripheral nerve regeneration. Int J Biol Macromol 2020; 154:795-817. [DOI: 10.1016/j.ijbiomac.2020.03.155] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/15/2020] [Accepted: 03/16/2020] [Indexed: 12/18/2022]
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172
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Holz E, Rajagopal K. In Situ‐Forming Glucose‐Responsive Hydrogel from Hyaluronic Acid Modified with a Boronic Acid Derivative. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Emily Holz
- Drug Delivery DepartmentGenentech, Inc. South San Francisco CA 94568 USA
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173
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Abou-ElNour M, Soliman ME, Skouras A, Casettari L, Geneidi AS, Ishak RAH. Microparticles-in-Thermoresponsive/Bioadhesive Hydrogels as a Novel Integrated Platform for Effective Intra-articular Delivery of Triamcinolone Acetonide. Mol Pharm 2020; 17:1963-1978. [PMID: 32271590 DOI: 10.1021/acs.molpharmaceut.0c00126] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Intra-articular (IA) injection of thermoresponsive hydrogels coupled with microparticles (MPs) possess the benefit of sustaining the anti-inflammatory drug effect within the joint cavity for rheumatoid arthritis treatment. Star-shaped thermoresponsive poly(polyethylene glycol) methacrylate [Poly(PEGMA)] copolymers were synthesized using free radical polymerization technique and fully characterized. Triamcinolone acetonide (TA)-loaded PLA/mPEG-PDL MPs, previously optimized, were integrated into the synthesized copolymer solutions at various concentrations and tested for their gelation temperatures. The MPs-in-hydrogel formulations were characterized using scanning electron microscope (SEM), viscosity measurements, ex vivo bioadhesion, and in vitro release studies. The anti-inflammatory effect of integrated systems was assessed in adjuvant-induced monoarthritic rat knee joints and compared to Kenacort and TA-loaded MPs. Two copolymers were successfully synthesized; G-1 = poly(PEGMA188-ME-co-PEGMA475-ME) and G-2 = poly(PEGMA246-EE-co-PEGMA475-ME). Using the tube inversion technique, the gel formation was found dependent on copolymer concentration. An irreversible aggregation was obtained at copolymer concentrations ≤10% (w/v), while a gel was formed at 20 and 30% (w/v) of both copolymers upon increasing temperature. The MP-hydrogel formulations were optimized at 20 and 30% (w/v) of G-1 and G-2 with gelation temperatures of 33 and 37 °C, respectively. SEM images revealed the porous microstructures of hydrogels and their adsorption on MP surfaces. The integrated formulas showed pseudoplastic behaviors, while the bioadhesion study confirmed their bioadhesiveness on excised cartilage. The in vitro release study confirmed drug sustainment from MPs-hydrogels compared to MPs. In vivo studies proved the superiority of MP-in-hydrogels in treatment of induced arthritis, relative to Kenacort and MPs alone, suggesting the applicability of this integrated platform in IA drug delivery.
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Affiliation(s)
- May Abou-ElNour
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Monazzamet Elwehda Elafrikeya Street, Abbaseyya, Cairo 11566, Egypt
| | - Mahmoud E Soliman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Monazzamet Elwehda Elafrikeya Street, Abbaseyya, Cairo 11566, Egypt
| | - Athanasios Skouras
- Department of Life Sciences, School of Sciences, European University Cyprus, 1516 Nicosia, Cyprus
| | - Luca Casettari
- Department of Biomolecular Sciences, School of Pharmacy, University of Urbino, Piazza Rinascimento, 6, 61029 Urbino, Pesaro and Urbino, Italy
| | - Ahmed S Geneidi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Monazzamet Elwehda Elafrikeya Street, Abbaseyya, Cairo 11566, Egypt
| | - Rania A H Ishak
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Monazzamet Elwehda Elafrikeya Street, Abbaseyya, Cairo 11566, Egypt
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174
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Garnica-Palafox I, Estrella-Monroy H, Vázquez-Torres N, Álvarez-Camacho M, Castell-Rodríguez A, Sánchez-Arévalo F. Influence of multi-walled carbon nanotubes on the physico-chemical and biological responses of chitosan-based hybrid hydrogels. Carbohydr Polym 2020; 236:115971. [DOI: 10.1016/j.carbpol.2020.115971] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 01/28/2020] [Accepted: 02/09/2020] [Indexed: 12/16/2022]
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175
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Injectable pH-responsive poly (γ-glutamic acid)-silica hybrid hydrogels with high mechanical strength, conductivity and cytocompatibility for biomedical applications. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122489] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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176
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No YJ, Castilho M, Ramaswamy Y, Zreiqat H. Role of Biomaterials and Controlled Architecture on Tendon/Ligament Repair and Regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904511. [PMID: 31814177 DOI: 10.1002/adma.201904511] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 11/10/2019] [Indexed: 06/10/2023]
Abstract
Engineering synthetic scaffolds to repair and regenerate ruptured native tendon and ligament (T/L) tissues is a significant engineering challenge due to the need to satisfy both the unique biological and biomechanical properties of these tissues. Long-term clinical outcomes of synthetic scaffolds relying solely on high uniaxial tensile strength are poor with high rates of implant rupture and synovitis. Ideal biomaterials for T/L repair and regeneration need to possess the appropriate biological and biomechanical properties necessary for the successful repair and regeneration of ruptured tendon and ligament tissues.
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Affiliation(s)
- Young Jung No
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW, 2006, Australia
| | - Miguel Castilho
- Department of Orthopedics, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
| | - Yogambha Ramaswamy
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW, 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW, 2006, Australia
- Radcliffe Institute for Advanced Study, Harvard University, Cambridge, MA, 02138, USA
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177
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Altuncu S, Akyol E, Guven MN, Demirci G, Yagci Acar H, Avci D. Phosphonic acid-functionalized poly(amido amine) macromers for biomedical applications. J Biomed Mater Res A 2020; 108:2100-2110. [PMID: 32319210 DOI: 10.1002/jbm.a.36969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 03/21/2020] [Accepted: 03/28/2020] [Indexed: 11/10/2022]
Abstract
Novel phosphonic acid-functionalized poly(amido amine) (PAA) macromers are synthesized through aza-Michael addition of 2-aminoethyl phosphonic acid or its mixture with 5-amino-1-pentanol at different ratios onto N,N'-methylene bis(acrylamide) to control the amount of phosphonic acid functionality. The macromers were homo- and copolymerized with 2-hydroxyethyl methacrylate at different ratios to obtain hydrogels with various hydrophilicities. The hydrogels' swelling, biodegradation and mineralization properties were evaluated. The swelling and degradation rates of the gels can be tuned by the chemical structure of PAA macromer precursors as well as pH and CaCl2 pre-treatment. The hydrogels show composition-dependent mineralization in SBF and 5xSBF, as evidenced from Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX) analyses. The degradation products of the hydrogels have no effect on U-2 OS, Saos-2 and NIH 3T3 cells, suggesting their cytocompatibility. Overall, these materials have potential to be used as nontoxic degradable biomaterials.
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Affiliation(s)
- Seckin Altuncu
- Department of Chemistry, Bogazici University, Istanbul, Turkey
| | - Ece Akyol
- Department of Chemistry, Bogazici University, Istanbul, Turkey
| | - Melek Naz Guven
- Department of Chemistry, Bogazici University, Istanbul, Turkey
| | - Gozde Demirci
- Department of Chemistry, Koc University, Istanbul, Turkey
| | | | - Duygu Avci
- Department of Chemistry, Bogazici University, Istanbul, Turkey
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178
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Hsu FM, Hu MH, Jiang YS, Lin BY, Hu JJ, Jan JS. Antibacterial polypeptide/heparin composite hydrogels carrying growth factor for wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110923. [PMID: 32409073 DOI: 10.1016/j.msec.2020.110923] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/30/2020] [Accepted: 03/31/2020] [Indexed: 11/15/2022]
Abstract
We report an efficient growth factor delivering system based on polypeptide/heparin composite hydrogels for wound healing application. Linear and star-shaped poly(l-lysine) (l-PLL and s-PLL) were chosen due to not only their cationic characteristics, facilitating the efficient complexation of negatively charged heparin, but also the ease to tune the physical and mechanical properties of as-prepared hydrogels simply by varying polypeptide topology and chain length. The results showed that polymer topology can be an additional parameter to tune hydrogel properties. Our experimental data showed that these composite hydrogels exhibited low hemolytic activity and good cell compatibility as well as excellent antibacterial activity, making them ideal as wound dressing materials. Unlike other heparin-based hydrogels, these composite hydrogels with heparin densely deposited on the surface can increase the stabilization and concentration of growth factor, which can facilitate the healing process as confirmed by our in vivo animal model. We believe that these PLL/heparin composite hydrogels are promising wound dressing materials and may have potential applications in other biomedical fields.
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Affiliation(s)
- Fang-Ming Hsu
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Ming-Hsien Hu
- Bachelor Program for Design and Materials for Medical Equipment and Devices, Da-Yeh University, Changhua, Taiwan; Orthopedic Department, Showchwan Memorial Hospital, Changhua, Taiwan
| | - Yi-Sheng Jiang
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Bi-Yun Lin
- Instrument Center of National Cheng Kung University, Tainan 70101, Taiwan
| | - Jin-Jia Hu
- Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan.
| | - Jeng-Shiung Jan
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
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179
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180
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Shahi M, Mohammadnejad D, Karimipour M, Rasta SH, Rahbarghazi R, Abedelahi A. Hyaluronic Acid and Regenerative Medicine: New Insights into the Stroke Therapy. Curr Mol Med 2020; 20:675-691. [PMID: 32213158 DOI: 10.2174/1566524020666200326095837] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 11/22/2022]
Abstract
Stroke is known as one of the very important public health problems that are related to societal burden and tremendous economic losses. It has been shown that there are few therapeutic approaches for the treatment of this disease. In this regard, the present therapeutic platforms aim to obtain neuroprotection, reperfusion, and neuro recovery. Among these therapies, regenerative medicine-based therapies have appeared as new ways of stroke therapy. Hyaluronic acid (HA) is a new candidate, which could be applied as a regenerative medicine-based therapy in the treatment of stroke. HA is a glycosaminoglycan composed of disaccharide repeating elements (N-acetyl-Dglucosamine and D-glucuronic acid). Multiple lines of evidence demonstrated that HA has critical roles in normal tissues. It can be a key player in different physiological and pathophysiological conditions such as water homeostasis, multiple drug resistance, inflammatory processes, tumorigenesis, angiogenesis, and changed viscoelasticity of the extracellular matrix. HA has very important physicochemical properties i.e., availability of reactive functional groups and its solubility, which make it a biocompatible material for application in regenerative medicine. Given that HAbased bioscaffolds and biomaterials do not induce inflammation or allergies and are hydrophilic, they are used as soft tissue fillers and injectable dermal fillers. Several studies indicated that HA could be employed as a new therapeutic candidate in the treatment of stroke. These studies documented that HA and HA-based therapies exert their pharmacological effects via affecting stroke-related processes. Herein, we summarized the role of the extracellular matrix in stroke pathogenesis. Moreover, we highlighted the HA-based therapies for the treatment of stroke.
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Affiliation(s)
- Maryam Shahi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Daruosh Mohammadnejad
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Karimipour
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Hossein Rasta
- Department of Medical Bioengineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Abedelahi
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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181
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Wróblewska M, Szymańska E, Szekalska M, Winnicka K. Different Types of Gel Carriers as Metronidazole Delivery Systems to the Oral Mucosa. Polymers (Basel) 2020; 12:polym12030680. [PMID: 32204334 PMCID: PMC7182799 DOI: 10.3390/polym12030680] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/17/2020] [Accepted: 03/17/2020] [Indexed: 01/18/2023] Open
Abstract
Periodontal diseases are some of the most widespread oral afflictions, and they are labeled as chronic infections caused by the accumulation of bacteria in dental plaque that produces localized inflammation of the periodontium. The use of local drug delivery systems to treat periodontal diseases has received greater attention, because the active substance is targeted directly to the affected area, which minimizes its systemic side effects. Therefore, the purpose of the investigation was to develop and characterize different types of gel formulations-bigel, hydrogel and oleogel-as local delivery systems containing metronidazole (MET), which can be applied to the oral mucosa. The influence of the formulation type on the mechanical, rheological and mucoadhesive properties were examined. Moreover, in vitro release of metronidazole, its ex vivo permeation through buccal porcine mucosa and antimicrobial activity measured by the plate diffusion method were estimated. It was found that the gel formulations obtained were non-Newtonian systems, showing a shear-thinning behavior and thixotropic properties with good textural features such as firmness, compressibility and adhesiveness. Moreover, the preparations designed possessed beneficial mucoadhesive properties. The formulated hydrogels and bigels containing micronized MET were considered as better formulations in terms of drug release and antimicrobial activity compared to commercially available metronidazole ointment. An ex vivo permeation study with the use of porcine buccal mucosa demonstrated that the bigel formulation was characterized by higher initial permeability rate providing a fast therapeutic effect with simultaneous moderate retention in mucosal tissue to decrease the risk of local cytotoxicity.
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182
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Abstract
AbstractElectrochemical hydrogel fabrication is the process of preparing hydrogels directly on to an electrode surface. There are a variety of methods to fabricate hydrogels, which are specific to the type of gelator and the desired properties of the hydrogel. A range of analytical methods that can track this gelation and characterise the final properties are discussed in this short review.
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183
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Albers PM, van der Ven LGJ, van Benthem RATM, Esteves ACC, de With G. Water Swelling Behavior of Poly(ethylene glycol)-Based Polyurethane Networks. Macromolecules 2020; 53:862-874. [PMID: 32063654 PMCID: PMC7017371 DOI: 10.1021/acs.macromol.9b02275] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/16/2020] [Indexed: 01/06/2023]
Abstract
Defects in a polymer network complicate an accurate calculation of structural parameters such as the molar mass between cross-links M c, typically obtained from experimental swelling data. In this paper the formation and structure of poly(ethylene glycol) (PEG)-based polyurethane networks containing PEG-mono methyl ether dangling chains are studied. The phantom network model can describe the swelling behavior of these networks only when a composition-dependent interaction parameter is used and the formation of allophanates is accounted for. A clear transition in the network formation is found at the PEG network precursor molar mass at which entanglements are formed in the melt. Correction factors based on structure calculations using the Miller-Macosko-Vallés probability approach are proposed and validated for an accurate calculation of the M c of these defect-containing networks. This provides a new approach for studies that requires an accurate estimate of the M c, only based on experimentally straightforward swelling experiments.
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Affiliation(s)
- Peter
T. M. Albers
- Laboratory
of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands
- Dutch
Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Leendert G. J. van der Ven
- Laboratory
of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Rolf A. T. M. van Benthem
- Laboratory
of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands
- DSM
Ahead BV Netherlands, P.O. Box 18, 6160 MD Geleen, The Netherlands
| | - A. Catarina C. Esteves
- Laboratory
of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Gijsbertus de With
- Laboratory
of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands
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184
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He R, Niu Y, Li Z, Li A, Yang H, Xu F, Li F. A Hydrogel Microneedle Patch for Point-of-Care Testing Based on Skin Interstitial Fluid. Adv Healthc Mater 2020; 9:e1901201. [PMID: 31957291 DOI: 10.1002/adhm.201901201] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/12/2019] [Indexed: 11/08/2022]
Abstract
Skin interstitial fluid (ISF) holds great potential as a highly desirable sample resource for point-of-care testing (POCT), where the key is to effectively collect target biomarkers from ISF. Hydrogel microneedle patch has great promise for ISF extraction. However, it is challenging to recover target biomarkers from the extracted skin ISF in hydrogel microneedle patches in an easy-administrated, fast, and bulky instrument-free manner. Herein, a hydrogel microneedle patch made of polyvinyl alcohol (PVA) and chitosan (CS) for POCT based on the ISF is developed. The phase transition property of PVA/CS hydrogel makes the microneedles stiff when dry, which is beneficial to easily penetrate into skin. Meanwhile, the highly porous microstructure of hydrogel offers good swelling ability for extraction of ISF and the thermal degradation property of PVA makes it convenient to quickly and efficiently recover target biomarkers from microneedle patch. The capability of this platform for POCT applications is further demonstrated by successful detections of typical biomarkers collected from the mimetic skin and monitoring the glucose level in rabbit skins during a day. The developed hydrogel microneedle patch holds the advantages of extraction of skin ISF and recovery of biomarkers, thus presenting as a powerful platform for skin ISF-based POCT applications.
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Affiliation(s)
- Rongyan He
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC)Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Yan Niu
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC)Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Zedong Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC)Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Ang Li
- The Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine ResearchCollege of StomatologyXi'an Jiaotong University Xi'an 710049 P. R. China
| | - Huayuan Yang
- College of Acupuncture‐Moxibustion and TuinaShanghai University of Traditional Chinese Medicine Shanghai 201203 P. R. China
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC)Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Fei Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC)Xi'an Jiaotong University Xi'an 710049 P. R. China
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185
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Sun X, Luo C, Luo F. Preparation and properties of self-healable and conductive PVA-agar hydrogel with ultra-high mechanical strength. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109465] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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186
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Sarfraz RM, Khan MU, Mahmood A, Akram MR, Minhas MU, QAISAR MN, ALI MR, Ahmad H, Zaman M. Synthesis of co-polymeric network of carbopol-g-methacrylic acid nanogels drug carrier system for gastro-protective delivery of ketoprofen and its evaluation. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1719148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | | | - Asif Mahmood
- Department of Pharmaceutics, Faculty of Pharmacy, University of Lahore, Lahore, Pakistan
| | | | | | | | | | - Hasnain Ahmad
- College of Pharmacy, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Zaman
- Department of Pharmacy, University of Central Punjab, Lahore, Pakistan
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187
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Li T, Huang F, Diaz-Dussan D, Zhao J, Srinivas S, Narain R, Tian W, Hao X. Preparation and Characterization of Thermoresponsive PEG-Based Injectable Hydrogels and Their Application for 3D Cell Culture. Biomacromolecules 2020; 21:1254-1263. [DOI: 10.1021/acs.biomac.9b01743] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Tian Li
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, China
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
| | - Fei Huang
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
| | - Diana Diaz-Dussan
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Jianyang Zhao
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
- Institute for Frontier Materials Geelong, Deakin University, Geelong, Victoria 3216, Australia
| | - Shruti Srinivas
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Ravin Narain
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Wendy Tian
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
| | - Xiaojuan Hao
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
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188
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Singhal A, Sinha N, Kumari P, Purkayastha M. Synthesis and Applications of Hydrogels in Cancer Therapy. Anticancer Agents Med Chem 2020; 20:1431-1446. [PMID: 31958041 DOI: 10.2174/1871521409666200120094048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 11/10/2019] [Accepted: 12/04/2019] [Indexed: 11/22/2022]
Abstract
Hydrogels are water-insoluble, hydrophilic, cross-linked, three-dimensional networks of polymer chains having the ability to swell and absorb water but do not dissolve in it, that comprise the major difference between gels and hydrogels. The mechanical strength, physical integrity and solubility are offered by the crosslinks. The different applications of hydrogels can be derived based on the methods of their synthesis, response to different stimuli, and their different kinds. Hydrogels are highly biocompatible and have properties similar to human tissues that make it suitable to be used in various biomedical applications, including drug delivery and tissue engineering. The role of hydrogels in cancer therapy is highly emerging in recent years. In the present review, we highlighted different methods of synthesis of hydrogels and their classification based on different parameters. Distinctive applications of hydrogels in the treatment of cancer are also discussed.
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Affiliation(s)
- Anchal Singhal
- Department of Chemistry, St. Joseph's College (Autonomous), Bangalore-560027, India
| | - Niharika Sinha
- Department of Chemistry, Gautam Buddha University, Noida, India
| | - Pratibha Kumari
- Department of Chemistry, Deshbandhu College, University of Delhi, New Delhi, India
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189
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Tang X, Gu X, Wang Y, Chen X, Ling J, Yang Y. Stable antibacterial polysaccharide-based hydrogels as tissue adhesives for wound healing. RSC Adv 2020; 10:17280-17287. [PMID: 35521469 PMCID: PMC9053413 DOI: 10.1039/d0ra02017f] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/28/2020] [Indexed: 11/25/2022] Open
Abstract
Adhesion to the surface of moist, dynamic, biological tissues is important in many fields. Currently, tissue adhesives commonly used in clinical practice remain far from ideal, exhibiting either poor tissue compatibility or weak tissue adhesion. Here, we designed biocompatible hydrogels comprising polysaccharides with polyacrylamide and exhibiting promising cytocompatibility, antibacterial activity, and excellent tissue adhesion. Alginate/chitosan-based hydrogels covalently cross-linked to the tissue surface in order to achieve admirable tissue adhesion. Additionally, the mechanical properties of the hydrogels were significantly enhanced with the addition of polyacrylamide, which synergistically promoted their enhanced adhesion. Importantly, the hydrogels exhibited good biocompatibility and reasonable antibacterial activity that promoted wound recovery during use as wound dressings. These results suggested the efficacy of the developed tissue adhesives for applications in biomedical fields, as well as broadening potential hydrogel use in tissue engineering. By combination of alginate/polyacrylamide/chitosan, tough antibacterial hydrogels are designed for applications as tissues adhesives to promote wound healing.![]()
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Affiliation(s)
- Xiaoxuan Tang
- Key Laboratory of Neuroregeneration
- Neural Regeneration Co-Innovation Centre of Jiangsu Province
- Nantong University
- Nantong
- PR China
| | - Xinyi Gu
- Key Laboratory of Neuroregeneration
- Neural Regeneration Co-Innovation Centre of Jiangsu Province
- Nantong University
- Nantong
- PR China
| | - Yaling Wang
- School of Pharmacy
- Nantong University
- Nantong
- PR China
| | - Xiaoli Chen
- Key Laboratory of Neuroregeneration
- Neural Regeneration Co-Innovation Centre of Jiangsu Province
- Nantong University
- Nantong
- PR China
| | - Jue Ling
- Key Laboratory of Neuroregeneration
- Neural Regeneration Co-Innovation Centre of Jiangsu Province
- Nantong University
- Nantong
- PR China
| | - Yumin Yang
- Key Laboratory of Neuroregeneration
- Neural Regeneration Co-Innovation Centre of Jiangsu Province
- Nantong University
- Nantong
- PR China
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190
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Bao X, Si X, Ding X, Duan L, Xiao C. pH-responsive hydrogels based on the self-assembly of short polypeptides for controlled release of peptide and protein drugs. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1953-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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191
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Üzüm ÖB, Çetin G, Kundakcı S, Karadağ E. Swelling and dye adsorption properties of polyelectrolyte semi-IPNs including of acrylamide/(3-acrylamidopropyl)trimethyl ammonium chloride/poly(ethylene glycol). SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1679836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ömer Barış Üzüm
- Department of Chemistry, Aydın Adnan Menderes University, Aydın, Turkey
| | - Gözde Çetin
- Department of Chemistry, Aydın Adnan Menderes University, Aydın, Turkey
| | - Semiha Kundakcı
- Department of Chemistry, Aydın Adnan Menderes University, Aydın, Turkey
| | - Erdener Karadağ
- Department of Chemistry, Aydın Adnan Menderes University, Aydın, Turkey
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192
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Mantha S, Pillai S, Khayambashi P, Upadhyay A, Zhang Y, Tao O, Pham HM, Tran SD. Smart Hydrogels in Tissue Engineering and Regenerative Medicine. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3323. [PMID: 31614735 PMCID: PMC6829293 DOI: 10.3390/ma12203323] [Citation(s) in RCA: 353] [Impact Index Per Article: 70.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/08/2019] [Accepted: 10/09/2019] [Indexed: 01/01/2023]
Abstract
The field of regenerative medicine has tremendous potential for improved treatment outcomes and has been stimulated by advances made in bioengineering over the last few decades. The strategies of engineering tissues and assembling functional constructs that are capable of restoring, retaining, and revitalizing lost tissues and organs have impacted the whole spectrum of medicine and health care. Techniques to combine biomimetic materials, cells, and bioactive molecules play a decisive role in promoting the regeneration of damaged tissues or as therapeutic systems. Hydrogels have been used as one of the most common tissue engineering scaffolds over the past two decades due to their ability to maintain a distinct 3D structure, to provide mechanical support for the cells in the engineered tissues, and to simulate the native extracellular matrix. The high water content of hydrogels can provide an ideal environment for cell survival, and structure which mimics the native tissues. Hydrogel systems have been serving as a supportive matrix for cell immobilization and growth factor delivery. This review outlines a brief description of the properties, structure, synthesis and fabrication methods, applications, and future perspectives of smart hydrogels in tissue engineering.
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Affiliation(s)
- Somasundar Mantha
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada.
| | - Sangeeth Pillai
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada.
| | - Parisa Khayambashi
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada.
| | - Akshaya Upadhyay
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada.
| | - Yuli Zhang
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada.
| | - Owen Tao
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada.
| | - Hieu M Pham
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada.
| | - Simon D Tran
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada.
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193
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Nkhwa S, Kemal E, Gurav N, Deb S. Dual polymer networks: a new strategy in expanding the repertoire of hydrogels for biomedical applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:114. [PMID: 31598796 PMCID: PMC6785588 DOI: 10.1007/s10856-019-6316-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 09/23/2019] [Indexed: 05/04/2023]
Abstract
Inspired by the double network hydrogel systems we report the formulation of dual networks, which expands the repertoire of this class of materials for potential biomedical applications. The tough dual network hydrogels were designed through sequential interpenetrating polymer formation, applying green chemistry and low-cost methods, devoid of any initiator-activator complexes that may pose risks in biomedical applications. The dual networks were synthesized in two steps, firstly the water soluble poly(vinyl alcohol) was subjected to cryogelation that formed the first network, which was then expanded by intrusion of a dilute solution of sodium alginate and complexed with a solution of calcium chloride under ambient conditions and further freeze-thawed. These hydrogels are flexible, ductile and porous with the ability to absorb and retain fluids as well as possess the versatility to easily incorporate biological molecules/drugs/antibiotics to be applied in tissue matrices or drug delivery systems. The dual network hydrogels can be tailored to have varying mechanical properties, shapes, size, thickness and particularly can be made physically porous if required, to suit the users intended application.
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Affiliation(s)
- Shathani Nkhwa
- Centre for Oral Clinical and Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Hospital, Floor 17, Tower Wing, London Bridge, London, SE1 9RT, UK
| | - Evren Kemal
- Centre for Oral Clinical and Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Hospital, Floor 17, Tower Wing, London Bridge, London, SE1 9RT, UK
| | - Neelam Gurav
- Centre for Oral Clinical and Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Hospital, Floor 17, Tower Wing, London Bridge, London, SE1 9RT, UK
| | - Sanjukta Deb
- Centre for Oral Clinical and Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Hospital, Floor 17, Tower Wing, London Bridge, London, SE1 9RT, UK.
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194
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Wu S, Kuss M, Qi D, Hong J, Wang HJ, Zhang W, Chen S, Ni S, Duan B. Development of Cryogel-Based Guidance Conduit for Peripheral Nerve Regeneration. ACS APPLIED BIO MATERIALS 2019; 2:4864-4871. [DOI: 10.1021/acsabm.9b00626] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shaohua Wu
- College of Textiles & Clothing; Collaborative Innovation Center of Marine Biomass Fibers, Qingdao University, Qingdao 266071, China
| | | | | | | | | | | | - Shaojuan Chen
- College of Textiles & Clothing; Collaborative Innovation Center of Marine Biomass Fibers, Qingdao University, Qingdao 266071, China
| | - Shilei Ni
- Department of Neurosurgery, Qilu Hospital, Shandong University, Jinan 250100, China
| | - Bin Duan
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
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195
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Studies on Novel Methods for Formulating Novel Cross-Linked Hydrogel Films of Hyaluronic Acid. COSMETICS 2019. [DOI: 10.3390/cosmetics6040059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hyaluronic acid (HA) is a natural polysaccharide with promising applications in modern cosmetic and nutricosmetic products due to its high-water affinity, which is essential for skin hydration, as well as its biocompatibility, biodegradability, non-toxicity, and non-immunogenic nature. In this study, we investigated and optimized the method of crosslinking for formulating novel HA hydrogel films. We used Pentaerythritol Tetra-acrylate (PT) as the cross-linking agent over a range of pH values and used different cross-linking methods (Ultraviolet (UV) radiation, microwaving, and oven heating). The efficacy of the cross-linking reaction was evaluated using swelling studies and Fourier transform infrared (FTIR) spectroscopy for the characterization of the xerogel HA-PT film formulations. We found that HA-PT cross-linked hydrogels are produced under alkaline conditions (pH 11) but not under neutral or acidic conditions. Cross-linked HA-PT xerogel films using UV-irradiation showed excessive swelling indicative of inadequate cross-linking. The oven and microwaving methods produced HA-PT films with high cross-linking density. FTIR data suggest formation of ester bond between the carbonyl of the HA and hydroxyl group of the PT acrylate group. Overall, the oven method was considered better and easier than UV-radiation/microwave methods because it is safer, user-friendly and eco-friendly, and can process larger batches.
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196
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Jahanabadi R, Sheikh N, Mahdavi H, Bagheri R. Effect of electron‐beam irradiation followed by annealing on the physical properties of poly(vinyl alcohol)–chitosan blend films at different weight ratios. J Appl Polym Sci 2019. [DOI: 10.1002/app.47820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Robabe Jahanabadi
- Polymer Group, Chemical Engineering DepartmentIsfahan University of Technology Isfahan Iran
| | - Nasrin Sheikh
- Radiation Application Research SchoolNuclear Science and Technology Research Institute, P.O. Box 11365‐3486 Tehran Iran
| | - Hamid Mahdavi
- Novel Drug Delivery Systems DepartmentPolymer Science Faculty, Iran Polymer and Petrochemical Institute, P.O. Box 14965‐115 Tehran Iran
| | - Rouhollah Bagheri
- Polymer Group, Chemical Engineering DepartmentIsfahan University of Technology Isfahan 84156‐83111 Iran
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197
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Rac V, Lević S, Balanč B, Olalde Graells B, Bijelić G. PVA Cryogel as model hydrogel for iontophoretic transdermal drug delivery investigations. Comparison with PAA/PVA and PAA/PVP interpenetrating networks. Colloids Surf B Biointerfaces 2019; 180:441-448. [DOI: 10.1016/j.colsurfb.2019.05.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/11/2019] [Accepted: 05/07/2019] [Indexed: 12/30/2022]
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198
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Abou‐Shamat MA, Calvo‐Castro J, Stair JL, Cook MT. Modifying the Properties of Thermogelling Poloxamer 407 Solutions through Covalent Modification and the Use of Polymer Additives. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900173] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mohamad A. Abou‐Shamat
- Department of Clinical and Pharmaceutical Sciences School of Life and Medical Sciences University of Hertfordshire Hatfield Hertfordshire AL10 9AB UK
| | - Jesus Calvo‐Castro
- Department of Clinical and Pharmaceutical Sciences School of Life and Medical Sciences University of Hertfordshire Hatfield Hertfordshire AL10 9AB UK
| | - Jacqueline L. Stair
- Department of Clinical and Pharmaceutical Sciences School of Life and Medical Sciences University of Hertfordshire Hatfield Hertfordshire AL10 9AB UK
| | - Michael T. Cook
- Department of Clinical and Pharmaceutical Sciences School of Life and Medical Sciences University of Hertfordshire Hatfield Hertfordshire AL10 9AB UK
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199
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Song J, Zhao H, Zhao G, Xiang Y, Liu Y. Novel Semi-IPN Nanocomposites with Functions of both Nutrient Slow-Release and Water Retention. 1. Microscopic Structure, Water Absorbency, and Degradation Performance. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7587-7597. [PMID: 31199651 DOI: 10.1021/acs.jafc.9b00888] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Few studies have been conducted on the use of general nanotechnology-based principles for providing nutrients to crops. Water and fertilizer are the most important inputs in determining crop yield and profit. In this paper, super-absorbent polymers SAPWS (grafting wheat straw (WS) to poly(acrylic-co-acrylamide), which is WS-g-P(AA-co-AM)) and SAPHEC (HEC (hydroxyethyl cellulose)-g-P(AA-co-AM)) and their semi-interpenetrating polymer network (semi-IPN) nanocomposites SI-PSRF/SAPWS and SI-PSRF/SAPHEC (formed by chemical bonding of SAPWS or SAPHEC with PSRF (NPK-containing polymeric slow-release fertilizer)) were prepared. Due to the differences between activity and number of functional groups in WS and HEC, the water absorption properties and degradation performances of SAPWS and SAPHEC and their chemically bonded function nanocomposites SI-PSRF/SAPWS and SI-PSRF/SAPHEC are different. The maximum water absorption ratios of SAPWS, SAPHEC, SI-PSRF/SAPWS, and SI-PSRF/SAPHEC can reach 200.00 g/g, 240.00 g/g, 119.91g/g, and 127.43 g/g, respectively. Effects of the structures of these four materials on their degradation performances were studied via a tomato pot experiment. The changes in microstructures of these materials during the degradation processes were characterized by TEM, SEM, FTIR, XRD, XPS, and other techniques. Results show that the degradation rate of the chemically bonded functional nanocomposites with a semi-IPN structure SI-PSRF/SAP system is higher than that of SAP+PSRF (the simple physically mixed system of PSRF and SAP). Due to the differences among the activities and quantities of functional groups in WS and HEC, the water absorption properties of SI-PSRF/SAPWS and SI-PSRF/SAPHEC are different, and there are different degradation rates for these two functional nanocomposites.
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Affiliation(s)
- Jiang Song
- Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering , North University of China , Taiyuan 030051 , China
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province , North University of China , Taiyuan 030051 , China
| | - Haidong Zhao
- Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering , North University of China , Taiyuan 030051 , China
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province , North University of China , Taiyuan 030051 , China
| | - Guizhe Zhao
- Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering , North University of China , Taiyuan 030051 , China
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province , North University of China , Taiyuan 030051 , China
| | - Yang Xiang
- Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering , North University of China , Taiyuan 030051 , China
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province , North University of China , Taiyuan 030051 , China
| | - Yaqing Liu
- Shanxi Province Key Laboratory of Functional Nanocomposites, School of Materials Science and Engineering , North University of China , Taiyuan 030051 , China
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province , North University of China , Taiyuan 030051 , China
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200
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García-Astrain C, Avérous L. Synthesis and behavior of click cross-linked alginate hydrogels: Effect of cross-linker length and functionality. Int J Biol Macromol 2019; 137:612-619. [PMID: 31276726 DOI: 10.1016/j.ijbiomac.2019.07.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/18/2019] [Accepted: 07/01/2019] [Indexed: 12/18/2022]
Abstract
Various bismaleimides and trismaleimides of varying molar masses, chemical architectures and functionalities were explored as cross-linkers for furan-modified alginate chains via Diels-Alder click reactions. An environmentally friendly approach is described for the preparation of hydrogels based on naturally occurring biomacromolecules, without catalysts. The behavior of the resulting polysaccharides-based hydrogels was analyzed in terms of swelling, rheological properties and drug-release efficiency, in connection with potential biomedical applications. The use of the different cross-linkers allows tuning the mechanical properties as well as the pulsatile swelling behavior of the hydrogels. When using trifunctional cross-linkers stiffer hydrogels were formed with high storage modulus whereas the chain length and the composition of the cross-linker clearly influence the swelling of the hydrogel network. In connection with drug delivery applications, release of vanillin as a traceable aromatic biobased model drug was also monitored as a function of hydrogel composition. To the best of our knowledge, for the first-time furan-modified alginates were reacted and studied with polyethylene glycol-based bis or trismaleimides with different molar masses and architectures, resulting in advanced hydrogels with different behavior.
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Affiliation(s)
- Clara García-Astrain
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, Strasbourg Cedex 2, France.
| | - Luc Avérous
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, Strasbourg Cedex 2, France.
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