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Mehraji S, Saadatmand M, Eskandari M. Production of letrozole-loaded alginate oxide-gelatin microgels using microfluidic systems for drug delivery applications. Int J Biol Macromol 2024; 263:129685. [PMID: 38394762 DOI: 10.1016/j.ijbiomac.2024.129685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/23/2023] [Accepted: 01/21/2024] [Indexed: 02/25/2024]
Abstract
Microfluidic systems are capable of producing microgels with a monodisperse size distribution and a spherical shape due to their laminar flow and superior flow. A significant challenge in producing these drug-carrying microgels is simultaneous drug loading into microgels. Various factors such as the type of polymer, the type of drug, the volume ratio of the drug to the polymer, and the geometry of the microfluidic system used to generate microgels can effectively address these challenges. The overall goal of this study was to produce mono-disperse drug-carrying microgels capable of controlled drug release. To achieve this goal, this study used a stream-focused microfluidic chip containing a coating current to prevent chip clogging. Alginate oxide was synthesized with a 30 % oxidation percentage. Alginate oxide, gelatin, and compositions of them with volume ratios of 50-50, 70-30, and 30-70, by determining their appropriate weight percentage, were used for the controlled release of letrozole. The properties of the produced microgels were measured through various tests such as drug release test, loading percentage, SEM, FTIR, swelling ratio, and dimensional stability. It was found that microgels made of a combination of alginate oxide-gelatin with volume ratios of 70-30 had a good swelling ratio and structural stability. The drug loading percentages for alginate, alginate oxide, and alginate oxide-gelatin with volume ratios of 50-50 and 30-70, respectively, were 56 %, 68 %, and 66 %, 61 % and the alginate oxide-gelatin with a volume ratio of 70-30 compared to other samples had over 70 % drug loading percentages. Furthermore, samples of alginate, alginate oxide, and alginate oxide-gelatin with volume ratios of 50-50 and 30-70 had 94 %, 63 %, 56 %, and 68 % drug release in 13 days, respectively. However, alginate oxide-gelatin with a volume ratio of 70-30 had a release rate of about 50 % in 13 days, which is a more controlled release for letrozole compared to the volume ratios of 50-50 and 30-70. Examining the drug release profile, it was concluded that drug release follows the Higuchi model and therefore follows Fick's first law of diffusion. It can be concluded that the combination of alginate oxide-gelatin produces more suitable microgels than alginate and alginate oxide for the controlled-release of letrozole. A comparison of microgels of alginate oxide and gelatin with volume ratios of 50-50 and 70-30 had better results for the cytotoxicity study compared to other samples.
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Affiliation(s)
- Sima Mehraji
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Maryam Saadatmand
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran.
| | - Mahnaz Eskandari
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic University), Tehran, Iran.
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2
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Akhtar M, Nazneen A, Awais M, Hussain R, Khan A, Irfan M, Avcu E, Ur Rehman MA, Boccaccini AR. Oxidized alginate-gelatin (ADA-GEL)/silk fibroin/Cu-Ag doped mesoporous bioactive glass nanoparticle-based hydrogels for potential wound care treatments. Biomed Mater 2024; 19:035016. [PMID: 38417147 DOI: 10.1088/1748-605x/ad2e0f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 02/28/2024] [Indexed: 03/01/2024]
Abstract
The present work focuses on developing 5% w/v oxidized alginate (alginate di aldehyde, ADA)-7.5% w/v gelatin (GEL) hydrogels incorporating 0.25% w/v silk fibroin (SF) and loaded with 0.3% w/v Cu-Ag doped mesoporous bioactive glass nanoparticles (Cu-Ag MBGNs). The microstructural, mechanical, and biological properties of the composite hydrogels were characterized in detail. The porous microstructure of the developed ADA-GEL based hydrogels was confirmed by scanning electron microscopy, while the presence of Cu-Ag MBGNs in the synthesized hydrogels was determined using energy dispersive x-ray spectroscopy. The incorporation of 0.3% w/v Cu-Ag MBGNs reduced the mechanical properties of the synthesized hydrogels, as investigated using micro-tensile testing. The synthesized ADA-GEL loaded with 0.25% w/v SF and 0.3% w/v Cu-Ag MBGNs showed a potent antibacterial effect againstEscherichia coliandStaphylococcus aureus. Cellular studies using the NIH3T3-E1 fibroblast cell line confirmed that ADA-GEL films incorporated with 0.3% w/v Cu-Ag MBGNs exhibited promising cellular viability as compared to pure ADA-GEL (determined by WST-8 assay). The addition of SF improved the biocompatibility, degradation rate, moisturizing effects, and stretchability of the developed hydrogels, as determinedin vitro. Such multimaterial hydrogels can stimulate angiogenesis and exhibit desirable antibacterial properties. Therefore further (in vivo) tests are justified to assess the hydrogels' potential for wound dressing and skin tissue healing applications.
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Affiliation(s)
- Memoona Akhtar
- Department of Materials Science & Engineering, Institute of Space Technology Islamabad, 1, Islamabad Highway, Islamabad 44000, Pakistan
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, Erlangen 91058, Germany
| | - Arooba Nazneen
- Department of Materials Science & Engineering, Institute of Space Technology Islamabad, 1, Islamabad Highway, Islamabad 44000, Pakistan
| | - Muhammad Awais
- Department of Materials Science & Engineering, Institute of Space Technology Islamabad, 1, Islamabad Highway, Islamabad 44000, Pakistan
| | - Rabia Hussain
- Department of Materials Science & Engineering, Institute of Space Technology Islamabad, 1, Islamabad Highway, Islamabad 44000, Pakistan
| | - Ahmad Khan
- Department of Materials Science & Engineering, Institute of Space Technology Islamabad, 1, Islamabad Highway, Islamabad 44000, Pakistan
| | - Muhammad Irfan
- School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST) H-12, Islamabad 44000, Pakistan
| | - Egemen Avcu
- Department of Mechanical Engineering, Kocaeli University, Kocaeli 41001, Turkey
- Ford Otosan Ihsaniye Automotive Vocational School, Kocaeli University, Kocaeli 41650, Turkey
| | - Muhammad Atiq Ur Rehman
- Department of Materials Science & Engineering, Institute of Space Technology Islamabad, 1, Islamabad Highway, Islamabad 44000, Pakistan
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, Erlangen 91058, Germany
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Shen KH, Chiu TH, Teng KC, Yu J, Yeh YC. Fabrication of triple-crosslinked gelatin/alginate hydrogels for controlled release applications. Int J Biol Macromol 2023; 250:126133. [PMID: 37543263 DOI: 10.1016/j.ijbiomac.2023.126133] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 07/27/2023] [Accepted: 08/02/2023] [Indexed: 08/07/2023]
Abstract
Hydrogels have been demonstrated as smart drug carriers to recognize the tumor microenvironment for cancer treatment, where the dynamic crosslinks in the hydrogel network contribute to the stimuli-responsive features but also result in poor stability and weak mechanical property of the hydrogels. Here, phenylboronic acid-grafted polyethyleneimine (PBA-PEI)-modified gelatin (PPG) was synthesized to crosslink alginate dialdehyde (ADA) through imine bonds and boronate ester bonds, and then calcium ions (Ca2+) were added to introduce the third calcium-carboxylate crosslinking in the network to form the triple-crosslinked PPG/ADA-Ca2+ hydrogels. Given the three types of dynamic bonds in the network, PPG/ADA-Ca2+ hydrogels possessed a self-healing manner, stimuli-responsiveness, and better mechanical properties compared to single- or double-crosslinked hydrogels. The controlled release capability of PPG/ADA-Ca2+ hydrogels was also demonstrated, showing the encapsulated molecules can be rapidly released from the hydrogel network in the presence of hydrogen peroxide while the release rate can be slowed down at acidic pH. Furthermore, PPG/ADA-Ca2+ hydrogels presented selected cytotoxicity and drug delivery to cancer cells due to the regulated degradation by the cellular microenvironment. Taken together, PPG/ADA-Ca2+ hydrogels have been demonstrated as promising biomaterials with multiple desirable properties and dynamic features to perform controlled molecule release for biomedical applications.
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Affiliation(s)
- Ke-Han Shen
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Ting-Hsiang Chiu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Kuang-Chih Teng
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Jiashing Yu
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan.
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Ritschl L, Schilling P, Wittmer A, Bohner M, Bernstein A, Schmal H, Seidenstuecker M. Composite material consisting of microporous beta-TCP ceramic and alginate-dialdehyde-gelatin for controlled dual release of clindamycin and bone morphogenetic protein 2. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:39. [PMID: 37498466 PMCID: PMC10374674 DOI: 10.1007/s10856-023-06743-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 07/13/2023] [Indexed: 07/28/2023]
Abstract
The aim of this study was to produce a composite of microporous β-TCP filled with alginate-gelatin crosslinked hydrogel, clindamycin and bone morphogenetic protein (BMP-2) to prolong the drug-release behaviour for up to 28 days. The most promising alginate-di-aldehyde(ADA)-gelatin gel for drug release from microcapsules was used to fill microporous β-TCP ceramics under directional flow in a special loading chamber. Dual release of clindamycin and BMP-2 was measured on days 1, 2, 3, 6, 9, 14, 21 and 28 by high performance liquid chromatography (HPLC) and enzyme-linked immunosorbent assay (ELISA). After release, the microbial efficacy of the clindamycin was checked and the biocompatibility of the composite was tested in cell culture. Clindamycin and the model substance FITC-protein A were released from microcapsules over 28 days. The clindamycin burst release was 43 ± 1%. For the loaded ceramics, a clindamycin release above the minimal inhibitory concentration (MIC) until day 9 and a burst release of 90.56 ± 2.96% were detected. BMP-2 was released from the loaded ceramics in low concentrations over 28 days. The release of active substances from β-TCP and hydrogel have already been extensively studied. Directional flow loading is a special procedure in which the ceramic could act as a stabilizer in the bone and, as a biodegradable system, enables a single-stage surgical procedure. Whether ADA-gelatin gel is suitable for this procedure as a more biodegradable alternative to pure alginate or whether a dual release is possible in this composite has not yet been investigated.
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Affiliation(s)
- Lucas Ritschl
- G.E.R.N. Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Engesserstraße 4, 79108, Freiburg, Germany.
| | - Pia Schilling
- G.E.R.N. Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Engesserstraße 4, 79108, Freiburg, Germany
| | - Annette Wittmer
- Medical Center Albert-Ludwigs-University of Freiburg, Institute of Microbiology and Hygiene, Hermann-Herder-Straße 11, 79104, Freiburg, Germany
| | - Marc Bohner
- Robert Mathys Foundation, Bischmattstrasse 12, 2544, Bettlach, Switzerland
| | - Anke Bernstein
- G.E.R.N. Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Engesserstraße 4, 79108, Freiburg, Germany
| | - Hagen Schmal
- Department of Orthopedics and Trauma Surgery, Medical Center Albert-Ludwigs-University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany
| | - Michael Seidenstuecker
- G.E.R.N. Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Engesserstraße 4, 79108, Freiburg, Germany.
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5
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Liu C, Dai J, Wang X, Hu X. The Influence of Textile Structure Characteristics on the Performance of Artificial Blood Vessels. Polymers (Basel) 2023; 15:3003. [PMID: 37514393 PMCID: PMC10385882 DOI: 10.3390/polym15143003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/30/2023] Open
Abstract
Cardiovascular disease is a major threat to human health worldwide, and vascular transplantation surgery is a treatment method for this disease. Often, autologous blood vessels cannot meet the needs of surgery. However, allogeneic blood vessels have limited availability or may cause rejection reactions. Therefore, the development of biocompatible artificial blood vessels is needed to solve the problem of donor shortage. Tubular fabrics prepared by textile structures have flexible compliance, which cannot be matched by other structural blood vessels. Therefore, biomedical artificial blood vessels have been widely studied in recent decades up to the present. This article focuses on reviewing four textile methods used, at present, in the manufacture of artificial blood vessels: knitting, weaving, braiding, and electrospinning. The article mainly introduces the particular effects of different structural characteristics possessed by various textile methods on the production of artificial blood vessels, such as compliance, mechanical properties, and pore size. It was concluded that woven blood vessels possess superior mechanical properties and dimensional stability, while the knitted fabrication method facilitates excellent compliance, elasticity, and porosity of blood vessels. Additionally, the study prominently showcases the ease of rebound and compression of braided tubes, as well as the significant biological benefits of electrospinning. Moreover, moderate porosity and good mechanical strength can be achieved by changing the original structural parameters; increasing the floating warp, enlarging the braiding angle, and reducing the fiber fineness and diameter can achieve greater compliance. Furthermore, physical, chemical, or biological methods can be used to further improve the biocompatibility, antibacterial, anti-inflammatory, and endothelialization of blood vessels, thereby improving their functionality. The aim is to provide some guidance for the further development of artificial blood vessels.
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Affiliation(s)
- Chenxi Liu
- College of Textiles & Clothing, Qingdao University, Qingdao 266000, China
| | - Jieyu Dai
- College of Textiles & Clothing, Qingdao University, Qingdao 266000, China
| | - Xueqin Wang
- College of Textiles & Clothing, Qingdao University, Qingdao 266000, China
| | - Xingyou Hu
- College of Textiles & Clothing, Qingdao University, Qingdao 266000, China
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Farshidfar N, Iravani S, Varma RS. Alginate-Based Biomaterials in Tissue Engineering and Regenerative Medicine. Mar Drugs 2023; 21:189. [PMID: 36976238 PMCID: PMC10056402 DOI: 10.3390/md21030189] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/17/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
Today, with the salient advancements of modern and smart technologies related to tissue engineering and regenerative medicine (TE-RM), the use of sustainable and biodegradable materials with biocompatibility and cost-effective advantages have been investigated more than before. Alginate as a naturally occurring anionic polymer can be obtained from brown seaweed to develop a wide variety of composites for TE, drug delivery, wound healing, and cancer therapy. This sustainable and renewable biomaterial displays several fascinating properties such as high biocompatibility, low toxicity, cost-effectiveness, and mild gelation by inserting divalent cations (e.g., Ca2+). In this context, challenges still exist in relation to the low solubility and high viscosity of high-molecular weight alginate, high density of intra- and inter-molecular hydrogen bonding, polyelectrolyte nature of the aqueous solution, and a lack of suitable organic solvents. Herein, TE-RM applications of alginate-based materials are deliberated, focusing on current trends, important challenges, and future prospects.
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Affiliation(s)
- Nima Farshidfar
- Orthodontic Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz 71348-14336, Iran
| | - Siavash Iravani
- Faculty of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Rajender S. Varma
- Institute for Nanomaterials, Advanced Technologies and Innovation (CxI), Technical University of Liberec (TUL), 1402/2, 461 17 Liberec, Czech Republic
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Aswathy J, Resmi R, Joseph J, Joseph R, John A, Abraham A. Calotropis gigantea incorporated alginate dialdehyde-gelatin hydrogels for cartilage tissue regeneration in Osteoarthritis. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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8
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Yu J, He Y, Wang Y, Li S, Tian S. Ethylenediamine-oxidized sodium alginate hydrogel cross-linked graphene oxide nanofiltration membrane with self-healing property for efficient dye separation. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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9
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Jena SR, Dalei G, Das S, Nayak J, Pradhan M, Samanta L. Harnessing the potential of dialdehyde alginate-xanthan gum hydrogels as niche bioscaffolds for tissue engineering. Int J Biol Macromol 2022; 207:493-506. [PMID: 35276297 DOI: 10.1016/j.ijbiomac.2022.03.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/27/2022] [Accepted: 03/05/2022] [Indexed: 12/26/2022]
Abstract
Biomimetic hydrogels composed of natural polysaccharides have invariably blossomed as niche biomaterials in tissue engineering applications. The prospects of creating an extracellular matrix (ECM)-like milieu from such hydrogels has garnered considerable importance. In this study, we have fabricated bioscaffolds comprising dialdehyde alginate and xanthan gum and explored their potential use in tissue regeneration. The fabricated scaffolds displayed an interconnected porous network structure that is highly desirable for the aforesaid application. The scaffolds were endowed with good mechanical properties, thermostability, protein adsorption efficacy and degradability. Curcumin-loaded hydrogels exhibited appreciable antibacterial activity against E. coli. In vitro cytocompatibility studies revealed that the scaffolds promoted adhesion and proliferation of 3T3 fibroblast cells. The Western blot analysis of p53 gene indicated no growth arrest or apoptosis in 3T3 cells thus, signifying the non-toxic nature of the scaffolds. Furthermore, the ECM formation was confirmed via SDS-PAGE analysis. The overall results clearly validated these scaffolds as effectual biomaterials for tissue engineering applications.
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Affiliation(s)
- Soumya Ranjan Jena
- Redox Biology & Proteomics Laboratory, Department of Zoology and Centre of Excellence in Environment and Public Health, Ravenshaw University, Cuttack 753003, Odisha, India
| | - Ganeswar Dalei
- Department of Chemistry, Odisha University of Technology and Research, Bhubaneswar 751003, Odisha, India
| | - Subhraseema Das
- Department of Chemistry, Ravenshaw University, Cuttack 753003, Odisha, India.
| | - Jasmine Nayak
- Redox Biology & Proteomics Laboratory, Department of Zoology and Centre of Excellence in Environment and Public Health, Ravenshaw University, Cuttack 753003, Odisha, India
| | - Manoranjan Pradhan
- Department of Chemistry, Jhadeswar College of Engineering and Technology, Balasore 756056, Odisha, India
| | - Luna Samanta
- Redox Biology & Proteomics Laboratory, Department of Zoology and Centre of Excellence in Environment and Public Health, Ravenshaw University, Cuttack 753003, Odisha, India.
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Shahi S, Roghani-Mamaqani H, Talebi S, Mardani H. Chemical stimuli-induced reversible bond cleavage in covalently crosslinked hydrogels. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214368] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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11
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Wang W, Zhou Z, Liu N, Zhang X, Zhou H, Wang Y, Fang K, Wu T. Improving Biocompatibility of Polyester Fabrics through Polyurethane/Gelatin Complex Coating for Potential Vascular Application. Polymers (Basel) 2022; 14:polym14050989. [PMID: 35267812 PMCID: PMC8912764 DOI: 10.3390/polym14050989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/09/2022] [Accepted: 02/14/2022] [Indexed: 12/10/2022] Open
Abstract
Medical apparatus and instruments, such as vascular grafts, are first exposed to blood when they are implanted. Therefore, blood compatibility is considered to be the critical issue when constructing a vascular graft. In this regard, the coating method is verified to be an effective and simple approach to improve the blood compatibility as well as prevent the grafts from blood leakage. In this study, polyester fabric is chosen as the substrate to provide excellent mechanical properties while a coating layer of polyurethane is introduced to prevent the blood leakage. Furthermore, gelatin is coated on the substrate to mimic the native extracellular matrix together with the improvement of biocompatibility. XPS and FTIR analysis are performed for elemental and group analysis to determine the successful coating of polyurethane and gelatin on the polyester fabrics. In terms of blood compatibility, hemolysis and platelet adhesion are measured to investigate the anticoagulation performance. In vitro cell experiments also indicate that endothelial cells show good proliferation and morphology on the polyester fabric modified with such coating layers. Taken together, such polyester fabric coated with polyurethane and gelatin layers would have a promising potential in constructing vascular grafts with expected blood compatibility and biocompatibility without destroying the basic mechanical requirements for vascular applications.
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Affiliation(s)
- Wei Wang
- College of Textile & Clothing, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (W.W.); (H.Z.)
- Collaborative Innovation Center for Eco-Textiles of Shandong Province and the Ministry of Education, 308 Ningxia Road, Qingdao 266071, China
- State Key Laboratory for Biofibers and Eco-Textiles, 308 Ningxia Road, Qingdao 266071, China
- Collaborative Innovation Center for Eco-Textiles of Shandong Province, 308 Ningxia Road, Qingdao 266071, China
| | - Ziyi Zhou
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao Medical College, Qingdao University, Qingdao 266071, China; (Z.Z.); (N.L.); (X.Z.)
- Department of Cosmetic and Plastic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266071, China
| | - Na Liu
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao Medical College, Qingdao University, Qingdao 266071, China; (Z.Z.); (N.L.); (X.Z.)
| | - Xiaopei Zhang
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao Medical College, Qingdao University, Qingdao 266071, China; (Z.Z.); (N.L.); (X.Z.)
| | - Hua Zhou
- College of Textile & Clothing, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (W.W.); (H.Z.)
- Collaborative Innovation Center for Eco-Textiles of Shandong Province and the Ministry of Education, 308 Ningxia Road, Qingdao 266071, China
- State Key Laboratory for Biofibers and Eco-Textiles, 308 Ningxia Road, Qingdao 266071, China
- Collaborative Innovation Center for Eco-Textiles of Shandong Province, 308 Ningxia Road, Qingdao 266071, China
| | - Yuanfei Wang
- Central Laboratory, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao 266001, China
- Correspondence: (Y.W.); (K.F.); (T.W.)
| | - Kuanjun Fang
- College of Textile & Clothing, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (W.W.); (H.Z.)
- Collaborative Innovation Center for Eco-Textiles of Shandong Province and the Ministry of Education, 308 Ningxia Road, Qingdao 266071, China
- State Key Laboratory for Biofibers and Eco-Textiles, 308 Ningxia Road, Qingdao 266071, China
- Collaborative Innovation Center for Eco-Textiles of Shandong Province, 308 Ningxia Road, Qingdao 266071, China
- Correspondence: (Y.W.); (K.F.); (T.W.)
| | - Tong Wu
- Collaborative Innovation Center for Eco-Textiles of Shandong Province and the Ministry of Education, 308 Ningxia Road, Qingdao 266071, China
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao Medical College, Qingdao University, Qingdao 266071, China; (Z.Z.); (N.L.); (X.Z.)
- Department of Cosmetic and Plastic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266071, China
- Correspondence: (Y.W.); (K.F.); (T.W.)
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Resmi R, Parvathy J, Saravana RP, Raj G, Joseph R. Biosynthesized Nanosilver from Alginate Dialdehyde: An In Vitro Evaluation. ChemistrySelect 2021. [DOI: 10.1002/slct.202103220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rajalekshmi Resmi
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
| | - Jayasree Parvathy
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
| | - Ramakrishna Perumal Saravana
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
| | - Gijo Raj
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
| | - Roy Joseph
- Division of Polymeric Medical Devices Biomedical Technology Wing Sree Chitra Tirunal Institute for Medical Sciences and Technology Poojappura Thiruvananthapuram India - 695012
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13
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Reakasame S, Dranseikiene D, Schrüfer S, Zheng K, Schubert DW, Boccaccini AR. Development of alginate dialdehyde-gelatin based bioink with methylcellulose for improving printability. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112336. [PMID: 34474887 DOI: 10.1016/j.msec.2021.112336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/23/2021] [Accepted: 07/23/2021] [Indexed: 11/26/2022]
Abstract
This study used methylcellulose (MC) to improve the printability of the alginate dialdehyde-gelatin (ADA-GEL) based bioink. The printability as well as the capability to maintain shape fidelity of ADA-GEL could be enhanced by the addition of 9% (w/v) MC. Moreover, the properties of the ink crosslinked with Ca2+ and Ba2+ were investigated. The samples crosslinked with Ba2+ were more stable and stiffer than the Ca2+ crosslinked samples. However, both Ca2+ and Ba2+ crosslinked samples exhibited a similar trend of MC release during incubation under cell culture conditions. The toxicity test indicated that both samples (crosslinked with Ca2+ and Ba2+) exhibited no toxic potential. The fabrication of cell-laden constructs using the developed bioinks was evaluated. The viability of ST2 cells in Ba2+ crosslinked samples increased while for Ca2+ crosslinked samples, a decreased viability was observed over the incubation time. After 21 days, cell spreading in the hydrogels crosslinked with Ba2+ occurred. However, a certain degree of cell damage was observed after incorporating the cells in the high viscosity bioink.
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Affiliation(s)
- Supachai Reakasame
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr.6, 91058 Erlangen, Germany
| | - Dalia Dranseikiene
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr.6, 91058 Erlangen, Germany
| | - Stefan Schrüfer
- Institute of Polymer Materials, University of Erlangen-Nuremberg, Martensstr.7, 91058 Erlangen, Germany
| | - Kai Zheng
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr.6, 91058 Erlangen, Germany
| | - Dirk W Schubert
- Institute of Polymer Materials, University of Erlangen-Nuremberg, Martensstr.7, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr.6, 91058 Erlangen, Germany.
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Kong X, Chen L, Li B, Quan C, Wu J. Applications of oxidized alginate in regenerative medicine. J Mater Chem B 2021; 9:2785-2801. [PMID: 33683259 DOI: 10.1039/d0tb02691c] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Because of its ideal degradation rate and features, oxidized alginate (OA) is selected as an appropriate substitute and has been introduced into hydrogels, microspheres, 3D-printed/composite scaffolds, membranes, and electrospinning and coating materials. By taking advantage of OA, the OA-based materials can be easily functionalized and deliver drugs or growth factors to promote tissue regeneration. In 1928, it was first found that alginate could be oxidized using periodate, yielding OA. Since then, considerable progress has been made in the research on the modification and application of alginate after oxidation. In this article, we summarize the key properties and existing applications of OA and various OA-based materials and discuss their prospects in regenerative medicine.
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Affiliation(s)
- Xiaoli Kong
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou 510006, P. R. China.
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Łabowska MB, Cierluk K, Jankowska AM, Kulbacka J, Detyna J, Michalak I. A Review on the Adaption of Alginate-Gelatin Hydrogels for 3D Cultures and Bioprinting. MATERIALS (BASEL, SWITZERLAND) 2021; 14:858. [PMID: 33579053 PMCID: PMC7916803 DOI: 10.3390/ma14040858] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/12/2021] [Accepted: 02/02/2021] [Indexed: 12/13/2022]
Abstract
Sustaining the vital functions of cells outside the organism requires strictly defined parameters. In order to ensure their optimal growth and development, it is necessary to provide a range of nutrients and regulators. Hydrogels are excellent materials for 3D in vitro cell cultures. Their ability to retain large amounts of liquid, as well as their biocompatibility, soft structures, and mechanical properties similar to these of living tissues, provide appropriate microenvironments that mimic extracellular matrix functions. The wide range of natural and synthetic polymeric materials, as well as the simplicity of their physico-chemical modification, allow the mechanical properties to be adjusted for different requirements. Sodium alginate-based hydrogel is a frequently used material for cell culture. The lack of cell-interactive properties makes this polysaccharide the most often applied in combination with other materials, including gelatin. The combination of both materials increases their biological activity and improves their material properties, making this combination a frequently used material in 3D printing technology. The use of hydrogels as inks in 3D printing allows the accurate manufacturing of scaffolds with complex shapes and geometries. The aim of this paper is to provide an overview of the materials used for 3D cell cultures, which are mainly alginate-gelatin hydrogels, including their properties and potential applications.
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Affiliation(s)
- Magdalena B. Łabowska
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland; (M.B.Ł); (A.M.J.)
| | - Karolina Cierluk
- Faculty of Chemistry, Wroclaw University of Science and Technology, Norwida 4/6, 50-373 Wroclaw, Poland;
| | - Agnieszka M. Jankowska
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland; (M.B.Ł); (A.M.J.)
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland;
| | - Jerzy Detyna
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland; (M.B.Ł); (A.M.J.)
| | - Izabela Michalak
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland;
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16
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Reakasame S, Jin A, Zheng K, Qu M, Boccaccini AR. Biofabrication and Characterization of Alginate Dialdehyde-Gelatin Microcapsules Incorporating Bioactive Glass for Cell Delivery Application. Macromol Biosci 2021; 20:e2000138. [PMID: 33405347 DOI: 10.1002/mabi.202000138] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/10/2020] [Indexed: 12/23/2022]
Abstract
The effect of the incorporation of 45S5 bioactive glass (BG) microparticles (mean particle size ≈ 2 µm) on the fabrication and physicochemical properties of alginate dialdehyde-gelatin hydrogel capsules is investigated. The addition of BG particles decreases the hydrogel gelation time by ≈79% and 91% for the samples containing 0.1% w/v and 0.5% w/v BG, respectively. Moreover, it results in increasing average diameter of hydrogel capsules produced via a pressure-driven extrusion technique from about 1000 µm for the samples without BG to about 1700 and 1900 µm for the samples containing BG at concentrations of 0.1% w/v and 0.5% w/v, respectively. The presence of BG particles in the capsules decreases the degradation rate and improves the bioactivity of the materials. The viability of MG-63 cells encapsulated in all samples increases during the first 7 d of cultivation and maintains the same level during 21 d of cultivation. The early cell viability in samples containing BG is lower than that in samples without BG. The results show that 45S5 BG can positively regulate the osteogenic activity of cells incorporated in hydrogel capsules. The fabricated composite capsules exhibit promising potential for cell delivery in bone regeneration applications.
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Affiliation(s)
- Supachai Reakasame
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr. 6, 91058, Erlangen, Germany
| | - Anbang Jin
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr. 6, 91058, Erlangen, Germany
| | - Kai Zheng
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr. 6, 91058, Erlangen, Germany
| | - Muchao Qu
- Institute of Polymer Materials, University of Erlangen-Nuremberg, Martensstr. 7, 91058, Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr. 6, 91058, Erlangen, Germany
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Rajalekshmi R, Kaladevi Shaji A, Joseph R, Bhatt A. Scaffold for liver tissue engineering: Exploring the potential of fibrin incorporated alginate dialdehyde-gelatin hydrogel. Int J Biol Macromol 2020; 166:999-1008. [PMID: 33166555 DOI: 10.1016/j.ijbiomac.2020.10.256] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Development of a tissue-engineered construct for hepatic regeneration remains a challenging task due to the lack of an optimum environment that support the growth of hepatocytes. Hydrogel systems possess many similarities with tissues and have the potential to provide the microenvironment essential for the cells to grow, proliferate, and remain functionally active. METHODS In this work, fibrin (FIB) incorporated injectable alginate dialdehyde (ADA) - gelatin (G) hydrogel was explored as a matrix for liver tissue engineering. ADA was prepared by periodate oxidation of sodium alginate. An injectable formulation of ADA-G-FIB hydrogel was prepared and characterized by FTIR spectroscopy, Scanning Electron Microscopy, and Micro-Computed Tomography. HepG2 cells were cultured on the hydrogel system; cellular growth and functions were analyzed using various functional markers. RESULTS FTIR spectra of ADA-G-FIB depicted the formation of Schiff's base at 1608.53 cm-1 with a gelation time of 3 min. ADA-G-FIB depicted a 3D surface topography with a pore size in the range of 100-200 μm. The non-cytotoxic nature of the scaffold was demonstrated using L929 cells and more than 80 % cell viability was observed. Functional analysis of cultured HepG2 cells demonstrated ICG uptake, albumin synthesis, CYP-P450 expression, and ammonia clearance. CONCLUSION ADA-G-FIB hydrogel can be used as an effective 3D scaffold system for liver tissue engineering.
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Affiliation(s)
- Resmi Rajalekshmi
- Division of Polymeric Medical Devices, Department of Medical Device Engineering, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala 695012, India
| | - Anusree Kaladevi Shaji
- Division of Thrombosis Research, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala 695012, India
| | - Roy Joseph
- Division of Polymeric Medical Devices, Department of Medical Device Engineering, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala 695012, India
| | - Anugya Bhatt
- Division of Thrombosis Research, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala 695012, India.
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Claaßen C, Dannecker M, Grübel J, Kotzampasi ME, Tovar GEM, Stanzel BV, Borchers K. The choice of biopolymer is crucial to trigger angiogenesis with vascular endothelial growth factor releasing coatings. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:93. [PMID: 33108503 PMCID: PMC7591429 DOI: 10.1007/s10856-020-06424-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 09/07/2020] [Indexed: 05/09/2023]
Abstract
Bio-based coatings and release systems for pro-angiogenic growth factors are of interest to overcome insufficient vascularization and bio-integration of implants. This study compares different biopolymer-based coatings on polyethylene terephthalate (PET) membranes in terms of coating homogeneity and stability, coating thickness in the swollen state, endothelial cell adhesion, vascular endothelial growth factor (VEGF) release and pro-angiogenic properties. Coatings consisted of carbodiimide cross-linked gelatin type A (GelA), type B (GelB) or albumin (Alb), and heparin (Hep), or they consisted of radically cross-linked gelatin methacryloyl-acetyl (GM5A5) and heparin methacrylate (HepM5). We prepared films with thicknesses of 8-10 µm and found that all coatings were homogeneous after washing. All gelatin-based coatings enhanced the adhesion of primary human endothelial cells compared to the uncoated membrane. The VEGF release was tunable with the loading concentration and dependent on the isoelectric points and hydrophilicities of the biopolymers used for coating: GelA-Hep showed the highest releases, while releases were indistinguishable for GelB-Hep and Alb-Hep, and lowest for GM5A5-HepM5. Interestingly, not only the amount of VEGF released from the coatings determined whether angiogenesis was induced, but a combination of VEGF release, metabolic activity and adhesion of endothelial cells. VEGF releasing GelA-Hep and GelB-Hep coatings induced angiogenesis in a chorioallantoic membrane assay, so that these coatings should be considered for further in vivo testing.
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Affiliation(s)
- Christiane Claaßen
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569, Stuttgart, Germany
| | - Miriam Dannecker
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569, Stuttgart, Germany
| | - Jana Grübel
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569, Stuttgart, Germany
| | - Maria-Elli Kotzampasi
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstr. 12, 70569, Stuttgart, Germany
| | - Günter E M Tovar
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569, Stuttgart, Germany.
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstr. 12, 70569, Stuttgart, Germany.
| | - Boris V Stanzel
- Department of Ophthalmology, University of Bonn, Ernst-Abbe-Str. 2, 53127, Bonn, Germany
- Augenklinik Sulzbach, Knappschaftsklinikum Saar, An der Klinik 10, 66280, Sulzbach, Germany
- Fraunhofer Institute for Biomedical Engineering IBMT, Joseph-von-Fraunhofer-Weg 1, 66280, Sulzbach/Saar, Germany
| | - Kirsten Borchers
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569, Stuttgart, Germany
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstr. 12, 70569, Stuttgart, Germany
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Resmi R, Parvathy J, John A, Joseph R. Injectable self-crosslinking hydrogels for meniscal repair: A study with oxidized alginate and gelatin. Carbohydr Polym 2020; 234:115902. [DOI: 10.1016/j.carbpol.2020.115902] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 01/02/2020] [Accepted: 01/20/2020] [Indexed: 12/25/2022]
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20
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Francis AP, Jayakrishnan A. Polymer–Drug Conjugates for Treating Local and Systemic Fungal Infections. ANTIMICROBIAL MATERIALS FOR BIOMEDICAL APPLICATIONS 2019. [DOI: 10.1039/9781788012638-00303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In immunocompromised patients, fungal infections are the major cause of morbidity and mortality. Currently, three major classes of drugs—polyenes, azoles, and echinocandins—with different mechanisms of action are used as antifungals for systemic infections. However, these conventional drugs were reported to induce toxic effects due to their low specificity, narrow spectrum of activity and drug–drug interactions. Some of these limitations could be overcome by altering the properties of existing drugs through physical and chemical modifications. For example, modification of amphotericin B (AmB), a polyene antibiotic includes the micellar suspension of AmB in deoxycholic acid (Fungizone®), non-covalent AmB lipid complexes (ABLC™), liposomal AmB (AmBisome®), and AmB colloidal dispersion (Amphocil™). All these formulations ensure the smoother release of AmB accompanied by its restricted distribution in the kidney, thereby lowering its nephrotoxicity. Although various methods such as polymeric micelles, nanoparticles and dendrimers were explored for enhancing the efficacy of the antifungal drugs, polymer–drug conjugates of antifungal drugs have received more attention in recent years. Polymer–drug conjugates improve the aqueous solubility of water-insoluble drugs, are stable in storage and reduce the toxicity of highly toxic drugs and are capable of releasing the drug at the site of action. This chapter discusses the polymer conjugates of antifungal drugs, their merits, and demerits. Studies reported so far show that the polymer–drug conjugates have significant advantages compared to conventional dosage forms for antifungal therapy.
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Affiliation(s)
- Arul Prakash Francis
- Biomaterials Laboratory, Bhupat and Jyoti Mehta School of Biosciences, Department of Biotechnology, Indian Institute of Technology Madras Chennai 600036 Tamil Nadu India
| | - A. Jayakrishnan
- Biomaterials Laboratory, Bhupat and Jyoti Mehta School of Biosciences, Department of Biotechnology, Indian Institute of Technology Madras Chennai 600036 Tamil Nadu India
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Dalton E, Chai Q, Shaw MW, McKenzie TJ, Mullins ES, Ayres N. Hydrogel‐coated polyurethane/urea shape memory polymer foams. ACTA ACUST UNITED AC 2019. [DOI: 10.1002/pola.29398] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Emily Dalton
- The Department of Chemistry The University of Cincinnati Cincinnati Ohio 45221
| | - Qinyuan Chai
- The Department of Chemistry The University of Cincinnati Cincinnati Ohio 45221
| | - Molly W. Shaw
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center Cincinnati Ohio 45229
| | - Tucker J. McKenzie
- The Department of Chemistry The University of Cincinnati Cincinnati Ohio 45221
| | - Eric S. Mullins
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center Cincinnati Ohio 45229
| | - Neil Ayres
- The Department of Chemistry The University of Cincinnati Cincinnati Ohio 45221
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Ruther F, Distler T, Boccaccini AR, Detsch R. Biofabrication of vessel-like structures with alginate di-aldehyde-gelatin (ADA-GEL) bioink. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 30:8. [PMID: 30594988 DOI: 10.1007/s10856-018-6205-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 12/08/2018] [Indexed: 06/09/2023]
Abstract
One of the key challenges in the field of blood vessel engineering is the in vitro production of small and large diameter vessels. Considering that a combination of alginate di-aldehyde and gelatin (ADA-GEL) has been successfully applied for different biofabrication approaches, the aim of this study was to exploit ADA-GEL for the fabrication of vessel structures with diameters up to 4 mm. To explore plotting possibilities and to study the swelling behaviour, a library of vessel-like constructs with different diameters made from 2, 3 and 4% (w/v) alginate was created by using various hand-crafted double-needle extrusion systems. Vessel diameters were varied through changes of the double-needle core and outer diameters. A straightforward model for the production of vessel of different diameters from a variety of double-needle systems was established and vessel-constructs with diameters of up to 3.7 mm could be created. It was successfully demonstrated that an artificial vessel, consisting of an outer layer of 7.5% ADA50-GEL50 and an inner core of 3% gelatin, can support the proliferation and migration of an immobilized co-culture containing fibroblast (NHDF) and endothelial (HUVEC) cells. The openness and tightness of the hollow ADA-GEL structures were further confirmed by a dye injection test. Nanoindentation was performed to determine the Young's modulus of the used materials. Cell vitality was proved after 1, 2 and 3 weeks of incubation. The results showed a nearly twofold increase of viable cells per week. Fluorescent images confirmed cell migration during the whole incubation time.
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Affiliation(s)
- F Ruther
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
| | - T Distler
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
| | - A R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany.
| | - R Detsch
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
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Wang K, Zhang Y, Jiang S, Wu D, Dai Y, Zhang X, Xia F. Surface Charge Reversible Polymeric Micelle-Laden Hydrogels for Drug Delivery and 3D Cell Culture. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kang Wang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education; Faculty of Materials Science and Chemistry; China University of Geosciences; Wuhan 430074 China
| | - Yuchen Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education; Faculty of Materials Science and Chemistry; China University of Geosciences; Wuhan 430074 China
| | - Sirui Jiang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education; Faculty of Materials Science and Chemistry; China University of Geosciences; Wuhan 430074 China
| | - Dengjin Wu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education; Faculty of Materials Science and Chemistry; China University of Geosciences; Wuhan 430074 China
| | - Yu Dai
- Engineering Research Center of Nano-Geomaterials of Ministry of Education; Faculty of Materials Science and Chemistry; China University of Geosciences; Wuhan 430074 China
| | - Xiaojin Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education; Faculty of Materials Science and Chemistry; China University of Geosciences; Wuhan 430074 China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education; Faculty of Materials Science and Chemistry; China University of Geosciences; Wuhan 430074 China
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Ali A, Ahmed S. Recent Advances in Edible Polymer Based Hydrogels as a Sustainable Alternative to Conventional Polymers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6940-6967. [PMID: 29878765 DOI: 10.1021/acs.jafc.8b01052] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The over increasing demand of eco-friendly materials to counter various problems, such as environmental issues, economics, sustainability, biodegradability, and biocompatibility, open up new fields of research highly focusing on nature-based products. Edible polymer based materials mainly consisting of polysaccharides, proteins, and lipids could be a prospective contender to handle such problems. Hydrogels based on edible polymer offer many valuable properties compared to their synthetic counterparts. Edible polymers can contribute to the reduction of environmental contamination, advance recyclability, provide sustainability, and thereby increase its applicability along with providing environmentally benign products. This review is highly emphasizing on toward the development of hydrogels from edible polymer, their classification, properties, chemical modification, and their potential applications. The application of edible polymer hydrogels covers many areas including the food industry, agricultural applications, drug delivery to tissue engineering in the biomedical field and provide more safe and attractive products in the pharmaceutical, agricultural, and environmental fields, etc.
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Affiliation(s)
- Akbar Ali
- Department of Chemistry , Jamia Millia Islamia , New Delhi , 110025 , India
| | - Shakeel Ahmed
- Department of Chemistry , Government Degree College Mendhar , Jammu , Jammu and Kashmir , 185211 , India
- Higher Education Department , Government of Jammu and Kashmir , Jammu , 180001 , India
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Deepthi S, Nivedhitha Sundaram M, Vijayan P, Nair SV, Jayakumar R. Engineering poly(hydroxy butyrate-co-hydroxy valerate) based vascular scaffolds to mimic native artery. Int J Biol Macromol 2018; 109:85-98. [DOI: 10.1016/j.ijbiomac.2017.12.077] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 01/22/2023]
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26
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Unnikrishnan M, Umashankar PR, Viswanathan S, Savlania A, Joseph R, Muraleedharan CV, Agrawal V, Shenoy SJ, Krishnan LK, Mohanan PV, Sabareeswaran A. Preclinical evaluation of hydrogel sealed fluropassivated indigenous vascular prosthesis. Indian J Med Res 2018; 146:646-653. [PMID: 29512608 PMCID: PMC5861477 DOI: 10.4103/ijmr.ijmr_1933_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background & objectives: Polyethylene terephthalate (PET) graft, designed and developed at our institute for vascular reconstruction, is porous to promote optimal incorporation and neointima formation, requiring pre-clotting or biomodification by sealing the pores before implantation. The objective of this study was to characterize, test and perform preclinical evaluation of hydrogel (alginate dialdehyde cross-linked gelatin) sealed fluoropassivated PET vascular prosthesis in pig model, so as to avoid pre-clotting, for its safety and efficacy before employing the indigenous and less expensive graft for clinical use. Methods: Hydrogel sealed, fluoropassivated PET vascular prosthesis were tested for haemocompatibility and toxicity followed by small animal toxicology tests and in vivo experiments in pigs receiving implantation at thoracic aorta. All 33 animals received test as well as control grafts with a plan for phased explantation at 2, 12 and 26 weeks. All animals underwent completion angiogram at the end of procedure as well as before graft explantation. Results: Haemocompatibility tests for haemolysis and toxicity tests showed no adverse events in tested mice and rabbits. Completion angiogram showed intact anastamosis and patent graft in each animal in post-operative period and at explantation. Gross and histopathological examination showed well-encapsulated grafts, clean glistening neointima and no evidence of thrombus in both test and control grafts. Interpretation & conclusions: Hydrogel sealed, fluoropassivated PET vascular prosthesis was found non-toxic, haemocompatible and remained patent in in vivo studies at planned intervals.
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Affiliation(s)
- Madathipat Unnikrishnan
- Division of Vascular Surgery, Department of Cardiovascular & Thoracic Surgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - P R Umashankar
- Division of In Vivo Models & Testing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - Sidharth Viswanathan
- Division of Vascular Surgery, Department of Cardiovascular & Thoracic Surgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - Ajay Savlania
- Division of Vascular Surgery, Department of Cardiovascular & Thoracic Surgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - Roy Joseph
- Polymer Processing Laboratory, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - C V Muraleedharan
- Division of Artificial Organs, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - Vivek Agrawal
- Division of Vascular Surgery, Department of Cardiovascular & Thoracic Surgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - Sachin J Shenoy
- Division of Artificial Organs, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - Lissy K Krishnan
- Thrombosis Research Unit, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - P V Mohanan
- Division of Toxicology, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
| | - A Sabareeswaran
- Division of Implant Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, India
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Synthesis and evaluation of anti-fungal activities of sodium alginate-amphotericin B conjugates. Int J Biol Macromol 2018; 108:1101-1109. [DOI: 10.1016/j.ijbiomac.2017.11.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 11/03/2017] [Accepted: 11/06/2017] [Indexed: 11/20/2022]
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28
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Alginate Utilization in Tissue Engineering and Cell Therapy. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2018. [DOI: 10.1007/978-981-10-6910-9_5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Reakasame S, Boccaccini AR. Oxidized Alginate-Based Hydrogels for Tissue Engineering Applications: A Review. Biomacromolecules 2017; 19:3-21. [DOI: 10.1021/acs.biomac.7b01331] [Citation(s) in RCA: 192] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Supachai Reakasame
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany
| | - Aldo R. Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany
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Fenn SL, Charron PN, Oldinski RA. Anticancer Therapeutic Alginate-Based Tissue Sealants for Lung Repair. ACS APPLIED MATERIALS & INTERFACES 2017; 9:23409-23419. [PMID: 28648052 PMCID: PMC5546308 DOI: 10.1021/acsami.7b04932] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Injury to the connective tissue that lines the lung, the pleura, or the lung itself can occur from many causes including trauma or surgery, as well as lung diseases or cancers. To address current limitations for patching lung injuries, to stop air or fluid leaks, an adherent hydrogel sealant patch system was developed, based on methacrylated alginate (AMA) and AMA dialdehyde (AMA-DA) blends, which is capable of sealing damaged tissues and sustaining physiological pressures. Methacrylation of alginate hydroxyl groups rendered the polysaccharide capable of photo-cross-linking when mixed with an eosin Y-based photoinitiator system and exposed to visible green light. Oxidation of alginate yields functional aldehyde groups capable of imine bond formation with proteins found in many tissues. The alginate-based patch system was rigorously tested on a custom burst pressure testing device. Blending of nonoxidized material with oxidized (aldehyde modified) alginates yielded patches with improved burst pressure performance and decreased delamination as compared with pure AMA. Human mesothelial cell (MeT-5A) viability and cytotoxicity were retained when cultured with the hydrogel patches. The release and bioactivity of doxorubicin-encapsulated submicrospheres enabled the fabrication of drug-eluting adhesive patches and were effective in decreasing human lung cancer cell (A549) viability.
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Affiliation(s)
- Spencer L. Fenn
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155
- Bioengineering Program, College of Engineering and Mathematical Sciences, and Larner College of Medicine, University of Vermont, Burlington, VT, 05405
| | - Patrick N. Charron
- Department of Mechanical Engineering, College of Engineering and Mathematical Sciences, University of Vermont, Burlington, VT, 05405
| | - Rachael A. Oldinski
- Bioengineering Program, College of Engineering and Mathematical Sciences, and Larner College of Medicine, University of Vermont, Burlington, VT, 05405
- Department of Mechanical Engineering, College of Engineering and Mathematical Sciences, University of Vermont, Burlington, VT, 05405
- Department of Electrical and Biomedical Engineering, College of Engineering and Mathematical Sciences, University of Vermont, Burlington, VT, 05405
- Department of Orthopaedics and Rehabilitation, Larner College of Medicine, University of Vermont, Burlington, VT, 05405
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Marcolin C, Draghi L, Tanzi M, Faré S. Electrospun silk fibroin-gelatin composite tubular matrices as scaffolds for small diameter blood vessel regeneration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:80. [PMID: 28397163 DOI: 10.1007/s10856-017-5884-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 03/12/2017] [Indexed: 06/07/2023]
Abstract
In this work an innovative method to obtain natural and biocompatible small diameter tubular structures is proposed. The biocompatibility and good mechanical properties of electrospun silk fibroin tubular matrices (SFts), extensively studied for tissue engineering applications, have been coupled with the excellent cell interaction properties of gelatin. In fact, an innovative non-cytotoxic gelatin gel, crosslinked in mild conditions via a Michael-type addition reaction, has been used to coat SFt matrices and obtain SFt/gel structures (I.D. = 6 mm). SFts/gel exhibited homogeneous gelatin coating on the electrospun fibrous tubular structure. Circumferential tensile tests performed on SFts/gel showed mechanical properties comparable to those of natural blood vessels in terms of UTS, compliance and viscoelastic behavior. Finally, SFt/gel in vitro cytocompatibility was confirmed by the good viability and spread morphology of L929 fibroblasts up to 7 days. These results demonstrated that SFt/gel is a promising off-the-shelf graft for small diameter blood vessel regeneration.
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Affiliation(s)
- Chiara Marcolin
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. Da Vinci 32, Milano, Italy
| | - Lorenza Draghi
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. Da Vinci 32, Milano, Italy
- Local Unit Politecnico di Milano, INSTM, Milano, Italy
| | | | - Silvia Faré
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. Da Vinci 32, Milano, Italy.
- Local Unit Politecnico di Milano, INSTM, Milano, Italy.
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Insights into the rheological behaviors evolution of alginate dialdehyde crosslinked collagen solutions evaluated by numerical models. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:727-737. [PMID: 28576043 DOI: 10.1016/j.msec.2017.04.125] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 04/10/2017] [Accepted: 04/13/2017] [Indexed: 02/07/2023]
Abstract
The elaboration of the rheological behaviors of alginate dialdehyde (ADA) crosslinked collagen solutions, along with the quantitative analysis via numerical models contribute to the controllable design of ADA crosslinked solution system's fluid mechanics performance during manufacturing process for collagen biomaterials. In the present work, steady shear flow, dynamical viscoelasticity, creep-recovery, thixotropy tests were performed to characterize the rheological behaviors of the collagen solutions incorporating of ADA from the different aspects and fitted with corresponding numerical models. It was found that pseudoplastic properties of all samples enhanced with increasing amounts of ADA, which was confirmed by the parameters calculated from the Ostwald-de Waele model, Carreau and Cross model, for instance, the non-Newtonian index (n) decreased from 0.786 to 0.201 and a great increase by 280 times in value of viscosity index (K) was obtained from Ostwald-de Waele model. The forth-mode Leonov model was selected to fit all dynamic modulus-frequency curves due to its higher fitting precision (R2>0.99). It could be found that the values of correlation shear viscosity (ηk) increased and the values of relaxation time (θk) decreased with increasing ADA at the fixed k value, suggesting that the incorporation of ADA accelerated the transformation of the collagen solutions from liquid-like to gel-like state due to more formation of CN linkages between aldehyde groups and lysine residues. Also, the curves of creep and recovery phase of the native and crosslinked collagen solutions were simulated well using Burger model and a semi-empirical model, respectively. The ability to resist to deformation and elasticity strengthened for the samples with higher amounts of ADA, accompanied with the important fact that compliance value (J50) decreased from 56.317Pa-1 to 2.135Pa-1 and the recovery percentage (Rcreep) increased from 2.651% to 28.217%. Finally, it was found that the area of thixotropic loop increased from 8.942Pa/s to 17.823Pa/s with increasing introduction of ADA, suggesting that stronger thixotropic behavior was associated with higher amount of ADA. Furthermore, Herschel-Bulkley model was employed to describe the up and down curves of all samples and it was confirmed that all collagen solutions belonged to pseudoplastic fluid (the flow index<1) without apparent yield stress and shear-thinning behaviors were more obvious with increasing additions of ADA according to the increasing consistency coefficient K values. Overall, this work contributed a new insight into the interactions between collagen and ADA based on quantitative rheological methods reflecting the different rheological properties and the results obtained should be of great utility in the extensive application of ADA crosslinked collagen solutions into diverse collagen-based materials.
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Bajpai SK, Shah FF, Bajpai M. Dynamic release of gentamicin sulfate (GS) from alginate dialdehyde (AD)-crosslinked casein (CAS) films for antimicrobial applications. Des Monomers Polym 2016; 20:18-32. [PMID: 29491776 PMCID: PMC5812178 DOI: 10.1080/15685551.2016.1231037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 08/29/2016] [Indexed: 10/25/2022] Open
Abstract
In the present work, antibiotic drug gentamicin sulfate (GS) has been loaded into alginate dialdehyde-crosslinked casein (CAS) films for wound dressing applications. The films have been characterized by Fourier transform infrared spectroscopy, X-ray diffraction analysis and scanning electron microscopy. The dynamic release of model drug GS has been investigated in the physiological fluid at 37 °C. The drug release data has been interpreted in the terms of various kinetic models such as Power function model, first order model and Schott model. The release data was found to be well fitted by Schott model. The various diffusion coefficients are also evaluated. The adsorption of model therapeutic protein BSA on the film has been investigated. The maximum adsorption is found to be 5.7 mg/cm2.The films were tested for their antibacterial and anti-fungal action. Finally, the in vivo wound healing study was carried out on Albino wistar rats.
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Affiliation(s)
- S. K. Bajpai
- Polymer Research Laboratory, Department of Chemistry, Govt. Model Science College, Jabalpur, India
| | - Farhan Ferooz Shah
- Polymer Research Laboratory, Department of Chemistry, Govt. Model Science College, Jabalpur, India
| | - M. Bajpai
- Polymer Research Laboratory, Department of Chemistry, Govt. Model Science College, Jabalpur, India
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Noreen A, Zia KM, Zuber M, Ali M, Mujahid M. A critical review of algal biomass: A versatile platform of bio-based polyesters from renewable resources. Int J Biol Macromol 2016; 86:937-49. [DOI: 10.1016/j.ijbiomac.2016.01.067] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Revised: 01/09/2016] [Accepted: 01/19/2016] [Indexed: 10/22/2022]
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Galactosylated alginate-curcumin micelles for enhanced delivery of curcumin to hepatocytes. Int J Biol Macromol 2016; 86:1-9. [DOI: 10.1016/j.ijbiomac.2016.01.037] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 01/09/2016] [Accepted: 01/10/2016] [Indexed: 12/28/2022]
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36
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Curcumin loaded gum arabic aldehyde-gelatin nanogels for breast cancer therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 65:331-7. [PMID: 27157759 DOI: 10.1016/j.msec.2016.04.044] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/16/2016] [Accepted: 04/11/2016] [Indexed: 10/21/2022]
Abstract
Curcumin, a widely studied hydrophobic polyphenol with anticancer potential is loaded in gum arabic aldehyde-gelatin (GA Ald-Gel) nanogels to improve its bioavailability and therapeutic efficacy towards cancer cells. Physicochemical properties of the curcumin loaded GA Ald-Gel nanogels are investigated by different techniques including dynamic light scattering (DLS), NMR spectroscopy and scanning electron microscopy (SEM). These nanogels exhibit hydrodynamic diameter of 452±8nm with a zeta potential of -27mV. The nanogels possess an encapsulation efficiency of 65±3%. Potential of the nanogels for controlled release of curcumin is illustrated by in vitro drug release studies. Hemocompatibility and cytocompatibility of the drug loaded nanogels are evaluated. In vitro cytotoxicity of the bare and curcumin loaded nanogels are analyzed by MTT assay towards MCF-7 cells. The results manifest that curcumin loaded nanogels induce toxicity in MCF-7 cells. Confocal laser scanning microscopy (CLSM) studies indicate in vitro cellular uptake of the nanogels in MCF-7 cells. All these results prove the suitability of the curcumin loaded GA Ald-Gel nanogels for cancer therapy.
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37
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Zhao X, Irvine SA, Agrawal A, Cao Y, Lim PQ, Tan SY, Venkatraman SS. 3D patterned substrates for bioartificial blood vessels - The effect of hydrogels on aligned cells on a biomaterial surface. Acta Biomater 2015; 26:159-168. [PMID: 26297885 DOI: 10.1016/j.actbio.2015.08.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 08/14/2015] [Accepted: 08/18/2015] [Indexed: 12/30/2022]
Abstract
The optimal bio-artificial blood vessel construct is one that has a compliant tubular core with circumferentially aligned smooth muscle cells (SMCs). Obtaining this well-aligned pattern of SMCs on a scaffold is highly beneficial as this cellular orientation preserves the SMC contractile phenotype. We used 3D patterning to create channels on a polycaprolactone (PCL) scaffold; SMCs were then found to be aligned within the microchannels. To preserve this alignment, and to provide a protective coating that could further incorporate cells, we evaluated the use of two hydrogels, one based on poly(ethylene glycol) diacrylate (PEGDA) and the other based on gelatin. Hydrogels were either physically coated on the PCL surfaces or covalently linked via suitable surface modification of PCL. For covalent immobilization of PEGDA hydrogel, alkene groups were introduced on PCL, while for gelatin covalent linkage, serum proteins were introduced. It is, however, crucial that the hydrogel coating does not disrupt the cellular patterning and distribution. We show in this work that both the process of coating as well as the nature of the coating are critical to preservation of the aligned SMCs. The covalent coating methods involving the crosslinking of hydrogels with the surface of PCL films promoted hydrogel retention time on the film as compared with physical deposition. Furthermore, subsequent hydrogel degradation is affected by the components of the cell culture medium, hinting at a possible route to in vivo biodegradation. STATEMENT OF SIGNIFICANCE Surface features control cellular orientation and subsequently influence their functionality, a useful effect for cellularized biomedical devices. Such devices also can benefit from protective and cell friendly hydrogel coatings. However, literature is lacking on the fate of cells that have endured hydrogel coating whilst orientated on a biomaterial surface. In particular, elucidation of the cells ability to remain adherent and orientated post hydrogel addition. Coating requires two procedures that may be deleterious to the orientated cells: the surface pretreatment for gel binding and the hydrogel crosslinking reaction. We compare transglutaminase gelatin crosslinking and UV initiated PEGDA crosslinking, coated onto smooth muscle cells orientated on patterned PCL surfaces. This original study will be of considerable use to the wider biomaterials community.
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Affiliation(s)
- Xinxin Zhao
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Scott Alexander Irvine
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Animesh Agrawal
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Ye Cao
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Pei Qi Lim
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Si Ying Tan
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Subbu S Venkatraman
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
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Li C, Mu C, Lin W, Ngai T. Gelatin Effects on the Physicochemical and Hemocompatible Properties of Gelatin/PAAm/Laponite Nanocomposite Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2015. [PMID: 26202134 DOI: 10.1021/acsami.5b05287] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
In recent years, inorganic nanoparticles such as Laponite have frequently been incorporated into polymer matrixes to obtain nanocomposite hydrogels with hierarchical structures, ultrastrong tensibilities, and high transparencies. Despite their unique physical and chemical properties, only a few reports have evaluated Laponite-based nanocomposite hydrogels for biomedical applications. This article presents the synthesis and characterization of a novel, hemocompatible nanocomposite hydrogels by in situ polymerization of acrylamide (AAm) in a mixed suspension containing Laponite and gelatin. The compatibility, structure, thermal stability, and mechanical properties of the resulting NC gels with varied gel compositions were investigated. Our results show that the prepared nanocomposite hydrogels exhibit good thermal stability and mechanical properties. The introduction of a biocompatible polymer, gelatin, into the polymer matrix did not change the transparency and homogeneity of the resulting nanocomposite hydrogels, but it significantly decreased the hydrogel's pH-responsive properties. More importantly, gelatins that were incorporated into the PAAm network resisted nonspecific protein adsorption, improved the degree of hemolysis, and eventually prolonged the clotting time, indicating that the in vitro hemocompatibility of the resulting nanocomposite hydrogels had been substantially enhanced. Therefore, these nanocomposite hydrogels provide opportunities for potential use in various biomedical applications.
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Affiliation(s)
| | | | | | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong , Shatin, N. T. Hong Kong
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Ding F, Wu S, Wang S, Xiong Y, Li Y, Li B, Deng H, Du Y, Xiao L, Shi X. A dynamic and self-crosslinked polysaccharide hydrogel with autonomous self-healing ability. SOFT MATTER 2015; 11:3971-3976. [PMID: 25833300 DOI: 10.1039/c5sm00587f] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Natural polymeric hydrogels with self-healing capability that can recover the functionalities and structures of gels after damage are extremely attractive due to their emerging applications in the biomedical field. Here we report a self-healable polymeric hydrogel by self-crosslinking two natural polymers acrylamide-modified chitin (AMC) containing amino groups and oxidized alginate containing dialdehyde groups. The generation of the self-crosslinked hydrogel relies on the dynamic covalent linkage through Schiff base between the polysaccharide chains. The self-healing capability of the crosslinked hydrogel depends on the molar ratio of AMC and oxidized alginate and the surrounding pH. Under certain circumstances, the damaged hydrogel shows a complete recovery and can be stretched to a favorable extent, which is seldom observed for polysaccharide self-healing hydrogel. Notably, we find that the self-healing ability can be "stored" by freeze-drying and "activated" by rehydration. In addition, we demonstrate that the hydrogel can be used as a soft template to guide the repair of inorganic materials like hydroxyapatite. We anticipate that this self-healable hydrogel consisting of biocompatible and biodegradable polysaccharides can be applied to various biomedical fields.
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Affiliation(s)
- Fuyuan Ding
- School of Resource and Environmental Science and Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
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40
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Preparation and characterisation of gelatin–gum arabic aldehyde nanogels via inverse miniemulsion technique. Int J Biol Macromol 2015; 76:181-7. [DOI: 10.1016/j.ijbiomac.2015.02.038] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 02/18/2015] [Accepted: 02/23/2015] [Indexed: 11/17/2022]
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41
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Nanogels based on alginic aldehyde and gelatin by inverse miniemulsion technique: synthesis and characterization. Carbohydr Polym 2015; 119:118-25. [DOI: 10.1016/j.carbpol.2014.11.037] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 11/11/2014] [Accepted: 11/13/2014] [Indexed: 11/17/2022]
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42
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Sarika P, Cinthya K, Jayakrishnan A, Anilkumar P, James NR. Modified gum arabic cross-linked gelatin scaffold for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 43:272-9. [DOI: 10.1016/j.msec.2014.06.042] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 05/27/2014] [Accepted: 06/30/2014] [Indexed: 12/22/2022]
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43
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Al Meslmani B, Mahmoud G, Strehlow B, Mohr E, Leichtweiß T, Bakowsky U. Development of thrombus-resistant and cell compatible crimped polyethylene terephthalate cardiovascular grafts using surface co-immobilized heparin and collagen. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 43:538-46. [DOI: 10.1016/j.msec.2014.07.059] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 06/26/2014] [Accepted: 07/16/2014] [Indexed: 12/21/2022]
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Grigore A, Sarker B, Fabry B, Boccaccini AR, Detsch R. Behavior of Encapsulated MG-63 Cells in RGD and Gelatine-Modified Alginate Hydrogels. Tissue Eng Part A 2014; 20:2140-50. [DOI: 10.1089/ten.tea.2013.0416] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Alexandra Grigore
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
- Biophysics Group, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Bapi Sarker
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Ben Fabry
- Biophysics Group, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Aldo R. Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Rainer Detsch
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
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Park H, Lee KY. Cartilage regeneration using biodegradable oxidized alginate/hyaluronate hydrogels. J Biomed Mater Res A 2014; 102:4519-25. [PMID: 24677739 DOI: 10.1002/jbm.a.35126] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 02/09/2014] [Accepted: 02/11/2014] [Indexed: 11/08/2022]
Abstract
Despite the widespread use of alginate (AL) hydrogels in many biomedical applications, including tissue engineering, AL is inherently non-degradable under physiological conditions. We hypothesized that degradable alginate (dAL) would be useful for cartilage regeneration when combined with hyaluronate (HA). We prepared dAL by partial oxidation of AL using sodium periodate, and the degradation rate of AL hydrogel was able to be regulated by control of sodium periodate concentration. The degradable oxidized AL/HA gels were formed in the presence of cells and their characteristics were investigated. dAL/HA gels with primary chondrocytes were injected subcutaneously into mice. Effective cartilage regeneration was observed after 6 weeks of transplantation based on histological analysis. Moreover, substantial secretion of sulfated glycosaminoglycans and expression of chondrogenic marker genes were also observed compared with non-dAL/HA gels. These results indicate that dAL/HA hydrogels may be useful in cartilage regeneration, and in many tissue engineering applications.
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Affiliation(s)
- Honghyun Park
- Department of Bioengineering, Hanyang University, Seoul, 133-791, Republic of Korea
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46
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Sarker B, Papageorgiou DG, Silva R, Zehnder T, Gul-E-Noor F, Bertmer M, Kaschta J, Chrissafis K, Detsch R, Boccaccini AR. Fabrication of alginate–gelatin crosslinked hydrogel microcapsules and evaluation of the microstructure and physico-chemical properties. J Mater Chem B 2014; 2:1470-1482. [DOI: 10.1039/c3tb21509a] [Citation(s) in RCA: 261] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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47
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Preparation of chitosan/silk fibroin blending membrane fixed with alginate dialdehyde for wound dressing. Int J Biol Macromol 2013; 58:121-6. [PMID: 23562962 DOI: 10.1016/j.ijbiomac.2013.03.059] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 02/24/2013] [Accepted: 03/21/2013] [Indexed: 11/20/2022]
Abstract
The objective of this work was to prepare chitosan/silk fibroin (CS/SF) blending membranes crosslinked with alginate dialdehyde (ADA) as wound dressings and to evaluate the physical properties and biocompatibility of the membranes. The morphology of membrane was observed by scanning electron microscopy (SEM) which showed that the well consistency of these two compositions. Further, the stability, water absorption and water vapor permeability of the ADA fixed CS/SF membranes could meet the needs of wound dressing. Furthermore, the biocompatibility of ADA fixed membranes was investigated by MTT assays and SEM in vitro, and the membranes were found to promote the cell attachment and proliferation. These results suggest that ADA fixed CS/SF blending membranes with a suitable ratio could be a promising candidate for wound healing applications.
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