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Tahir M, Sionkowska A. Effect of Polydopamine and Curcumin on Physicochemical and Mechanical Properties of Polymeric Blends. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5758. [PMID: 37687451 PMCID: PMC10488858 DOI: 10.3390/ma16175758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/14/2023] [Accepted: 08/20/2023] [Indexed: 09/10/2023]
Abstract
In this study, we prepared composites made from polyvinyl alcohol (PVA), sodium alginate (SA), curcumin (Cur), and polydopamine (PD). The film-forming properties of the composites were researched for potential wound-healing applications. The structures of the polymer blends and composites were studied by FTIR spectroscopy and microscopic observations (AFM and SEM). The mechanical properties were measured using a Zwick Roell testing machine. It was observed that the formation of a polymeric film based on the blend of polyvinyl alcohol and sodium alginate led to the generation of pores. The presence of curcumin in the composite resulted in the alteration of the blend properties. After solvent evaporation, the polymeric blend of PVA, SA, and curcumin formed a stable polymeric film, but the film showed poor mechanical properties. The addition of polydopamine led to an improvement in the mechanical strength of the film and an increase in its surface roughness. A polymeric film of sodium alginate presented the highest surface roughness value among all the studied specimens (66.6 nm), whereas polyvinyl alcohol showed the lowest value (1.60 nm). The roughness of the composites made of PVA/SA/Cur and PVA/SA/Cur/PD showed a value of about 25 nm. Sodium alginate showed the highest values of Young's modulus (4.10 GPa), stress (32.73 N), and tensile strength (98.48 MPa). The addition of PD to PVA/SA/Cur led to an improvement in the mechanical properties. Improved mechanical properties and appropriate surface roughness may suggest that prepared blends can be used for the preparation of wound-healing materials.
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Affiliation(s)
| | - Alina Sionkowska
- Department of Biomaterials and Cosmetic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland;
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Stan D, Codrici E, Enciu AM, Olewnik-Kruszkowska E, Gavril G, Ruta LL, Moldovan C, Brincoveanu O, Bocancia-Mateescu LA, Mirica AC, Stan D, Tanase C. Exploring the Impact of Alginate-PVA Ratio and the Addition of Bioactive Substances on the Performance of Hybrid Hydrogel Membranes as Potential Wound Dressings. Gels 2023; 9:476. [PMID: 37367146 DOI: 10.3390/gels9060476] [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: 05/26/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 06/28/2023] Open
Abstract
Healthcare professionals face an ongoing challenge in managing both acute and chronic wounds, given the potential impact on patients' quality of life and the limited availability of expensive treatment options. Hydrogel wound dressings offer a promising solution for effective wound care due to their affordability, ease of use, and ability to incorporate bioactive substances that enhance the wound healing process. Our study aimed to develop and evaluate hybrid hydrogel membranes enriched with bioactive components such as collagen and hyaluronic acid. We utilized both natural and synthetic polymers and employed a scalable, non-toxic, and environmentally friendly production process. We conducted extensive testing, including an in vitro assessment of moisture content, moisture uptake, swelling rate, gel fraction, biodegradation, water vapor transmission rate, protein denaturation, and protein adsorption. We evaluated the biocompatibility of the hydrogel membranes through cellular assays and performed instrumental tests using scanning electron microscopy and rheological analysis. Our findings demonstrate that the biohybrid hydrogel membranes exhibit cumulative properties with a favorable swelling ratio, optimal permeation properties, and good biocompatibility, all achieved with minimal concentrations of bioactive agents.
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Affiliation(s)
- Diana Stan
- DDS Diagnostic, 031427 Bucharest, Romania
- Doctoral School of Medicine, Titu Maiorescu University, 040441 Bucharest, Romania
| | - Elena Codrici
- Victor Babes National Institute of Pathology, 050096 Bucharest, Romania
| | - Ana-Maria Enciu
- Victor Babes National Institute of Pathology, 050096 Bucharest, Romania
- Department of Cell Biology and Histology, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Ewa Olewnik-Kruszkowska
- Department of Physical Chemistry and Physicochemistry of Polymers, Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland
| | - Georgiana Gavril
- Department of Bioinformatics, National Institute of Research and Development for Biological Sciences, 060031 Bucharest, Romania
| | | | - Carmen Moldovan
- National Institute for R&D in Microtechnology, 077190 Bucharest, Romania
| | - Oana Brincoveanu
- National Institute for R&D in Microtechnology, 077190 Bucharest, Romania
- Research Institute of the University of Bucharest, 060102 Bucharest, Romania
| | | | | | - Dana Stan
- DDS Diagnostic, 031427 Bucharest, Romania
| | - Cristiana Tanase
- Victor Babes National Institute of Pathology, 050096 Bucharest, Romania
- Department of Cell Biology and Clinical Biochemistry, Faculty of Medicine, Titu Maiorescu University, 040441 Bucharest, Romania
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Malektaj H, Drozdov AD, deClaville Christiansen J. Swelling of Homogeneous Alginate Gels with Multi-Stimuli Sensitivity. Int J Mol Sci 2023; 24:ijms24065064. [PMID: 36982139 PMCID: PMC10049665 DOI: 10.3390/ijms24065064] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/09/2023] Open
Abstract
A new two-step method is suggested for the preparation of homogeneous alginate gels. In the first step, alginate chains are weakly bonded by Ca2+ ions in an aqueous solution with a low pH. In the next step, the gel is immersed into a strong solution of CaCl2 to finalize the cross-linking process. Homogeneous alginate gels preserve their integrity in aqueous solutions with a pH ranging from 2 to 7 and ionic strength in the interval from 0 to 0.2 M, at temperatures ranging from room temperature up to 50 °C, and can be used in biomedical applications. The immersion of these gels into aqueous solutions with low pH induces the partial breakage of ionic bonds between chains (treated as gel degradation). This degradation affects the equilibrium and transient swelling of homogeneous alginate gels and makes them sensitive to the history of loading and environmental conditions (pH, ionic strength and temperature of aqueous solutions). As sensitivity to the environmental stimuli is a characteristic feature of polymer networks connected by catch bonds, homogeneous alginate gels may serve as a simple model, mimicking the behavior of more sophisticated structures in living matter.
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Dorkhani E, Faryabi A, Noorafkan Y, Heirani A, Behboudi B, Fazeli MS, Kazemeini A, Keramati MR, Keshvari A, Ahmadi Tafti SM. Biomedical properties and hemostatic efficacy of polyvinyl alcohol (PVA) based hydrogel in experimental rat liver injury model. J Appl Biomater Funct Mater 2023; 21:22808000231198803. [PMID: 37811589 DOI: 10.1177/22808000231198803] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023] Open
Abstract
PURPOSE Bleeding is a leading cause of mortality and morbidity in the trauma and surgery field, using effective hemostatic agents can help us reduce bleeding especially in parenchymal hemorrhage. Nowadays polyvinyl alcohol (PVA) is known as a safe candidate for wound dressing and maybe a hemostatic agent. PVA-based hydrogel is a popular biocompatible material in the biomedical field especially when it has high water absorption. In this study, we investigated the PVA hydrogel's mechanical and biological properties as well as its hemostatic potential in parenchymal bleeding. METHODS PVA hydrogel had made by the freeze-thawing approach, we used PVA hydrogel in comparison to standard treatment to investigate hemostatic potency. Also, we performed MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide) tests to survey PVA cellular toxicity. After an acute liver injury, two groups of 12 rats were treated with PVA hydrogel or standard treatment with sterile gauze. The results including the time and volume of bleeding, and the time and survival rate of the rats were measured and compared. RESULTS We saw that PVA hydrogel was safe with no cellular toxicity in the MTT assay. Regarding efficacy, PVA hydrogel increased rats' survival after bleeding from 75% to 91.7%, and decreased bleeding time (p: 0.015), and bleeding volume (p: 0.03) compared to the control group. CONCLUSION Polyvinyl alcohol is safe. It has good biological properties with no cellular toxicity and has a significant hemostatic effect and can be regarded in control of parenchymal hemorrhage.
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Affiliation(s)
- Erfan Dorkhani
- Colorectal Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Ali Faryabi
- Colorectal Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Advanced Technologies in Cardiovascular Medicine, Cardiovascular Diseases, Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Yasmin Noorafkan
- Research Center for Advanced Technologies in Cardiovascular Medicine, Cardiovascular Diseases, Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Asieh Heirani
- Research Center for Advanced Technologies in Cardiovascular Medicine, Cardiovascular Diseases, Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Behnam Behboudi
- Colorectal Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sadegh Fazeli
- Colorectal Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Kazemeini
- Colorectal Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Keramati
- Colorectal Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Keshvari
- Colorectal Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohsen Ahmadi Tafti
- Colorectal Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Advanced Technologies in Cardiovascular Medicine, Cardiovascular Diseases, Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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Tahami SR, Nemati NH, Keshvari H, Khorasani MT. In vitro and in vivo evaluation of nanofibre mats containing Calendula officinalis extract as a wound dressing. J Wound Care 2022; 31:598-611. [PMID: 35797256 DOI: 10.12968/jowc.2022.31.7.598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The present study aims to create Calendula officinalis-loaded nanofibre-based wound dressing materials to enhance the wound healing process. Calendula officinalis is an annual herb native to the Mediterranean region. It is antipyretic, antifungal, antioedema, antidiabetic, anti-inflammatory (wound, oral and pharyngeal mucosa), antispasmodic, treats chronic ocular surface diseases, acts as a stimulant and a diaphoretic. It is also used in the prevention of acute dermatitis, and in the treatment of gastrointestinal ulcers, wounds and burns. METHOD Electrospinning is an effective method for creating nano- and microfibres for biomedical applications. Calendula officinalis (CA) of various concentrations 5%, 10% and 15%)-loaded polyvinyl alcohol (PVA)/sodium alginate (SAlg) nanofibre mats were successfully produced via blend electrospinning. Nanofibre mats were evaluated using: scanning electron microscopy (SEM); Fourier transform infrared spectroscopy (FTIR) analysis; gel content; water vapour transmission rate (WVTR); swelling ratio; in vitro drug release studies; viability evaluation (cell culture and MTT assay); and an in vivo study using male Wistar rats. Rats were divided into three groups (n=3). In each group, rats were inflicted with five full-thickness wounds on the back and were treated with sterile gauze (control), PVA/SAlg nanofibre dressing (CA-free control), PVA/SAlg/CA5%, PVA/SAlg/CA10%, and PVA/SAlg/CA15% nanofibre dressing. RESULTS Results showed that the obtained fibres were smooth with no surface aggregates, indicating complete incorporation of Calendula officinalis. The release of Calendula officinalis from loaded PVA/SAlg fibre mats in the first four hours was burst released and then was constant. PVA/SAlg and PVA/SAlg/CA nanofibres were not toxic to L929 mouse fibroblasts and supported cell attachment and proliferation. The results of the in vivo study showed that the PVA/SAlg/CA10% nanofibre dressing had a higher full-thickness wound healing closure rate compared with the control group on days seven, 14 and 21 after treatment. CONCLUSION The results of this evaluation showed that PVA/SAlg/CA nanofibrous mats could be a candidate as an effective wound dressing; however, the percentage of CA in this compound needs further investigation.
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Affiliation(s)
- Seyed Rasoul Tahami
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Nahid Hassanzadeh Nemati
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hamid Keshvari
- Department of Biomedical Engineering Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Mohammad Taghi Khorasani
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.,Department of Biomaterial, Iran Polymer and Petrochemical Institute, Tehran, Iran
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de Prado EML, de Paula GA, Dutra JAP, Cipriano DF, Kitagawa RR, Siman FDM, Meira EF, de Freitas JCC, Severi JA, Carreira LG, Oréfice RL, Villanova JCO. Crude dry extract from Colocasia esculenta in association with poly(vinyl alcohol) as biomaterial to prepare bioactive wound dressing. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04263-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vidovic S, Stojkovska J, Stevanovic M, Balanc B, Vukasinovic-Sekulic M, Marinkovic A, Obradovic B. Effects of poly(vinyl alcohol) blending with Ag/alginate solutions to form nanocomposite fibres for potential use as antibacterial wound dressings. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211517. [PMID: 35360353 PMCID: PMC8965402 DOI: 10.1098/rsos.211517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 03/01/2022] [Indexed: 05/03/2023]
Abstract
In this work, nanocomposite fibres and microfibres based on alginate and poly(vinyl alcohol) (PVA) with silver nanoparticles (AgNPs) were produced and characterized for potential application as antibacterial wound dressings. PVA/Ag/Na-alginate colloid solution was used for the preparation of the fibres by a simple extrusion technique followed by freezing-thawing cycles. UV-Visible spectroscopy confirmed successful preservation of AgNPs in fibres while Fourier transform infrared spectroscopy has shown a balanced combined effect on the Ca-alginate spatial arrangement with the addition of both AgNPs and PVA. The presence of PVA in fibres induced an increase in the swelling degree as compared with that of Ag/Ca-alginate fibres (approx. 28 versus approx. 14). Still, the initially produced PVA/Ca-alginate fibres were mechanically weaker than Ca-alginate fibres, but after drying and rehydration exhibited better mechanical properties. Also, the obtained fibres released AgNPs and/or silver ions at the concentration of approximately 2.6 µg cm-3 leading to bacteriostatic effects against Staphylococcus aureus and Escherichia coli. These results are relevant for practical utilization of the fibres, which could be stored and applied in the dry form with preserved mechanical stability, sorption capacity and antibacterial activity.
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Affiliation(s)
- Srdjan Vidovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
| | - Jasmina Stojkovska
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
- Innovation Center of the Faculty of Technology and Metallurgy, 11000 Belgrade, Serbia
| | - Milan Stevanovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
| | - Bojana Balanc
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
- Innovation Center of the Faculty of Technology and Metallurgy, 11000 Belgrade, Serbia
| | | | - Aleksandar Marinkovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
| | - Bojana Obradovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia
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Li P, Cao L, Sang F, Zhang B, Meng Z, Pan L, Hao J, Yang X, Ma Z, Shi C. Polyvinyl alcohol/sodium alginate composite sponge with 3D ordered/disordered porous structure for rapidly controlling noncompressible hemorrhage. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 134:112698. [DOI: 10.1016/j.msec.2022.112698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/19/2022] [Accepted: 02/01/2022] [Indexed: 10/19/2022]
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9
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Sabbagh F, Muhamad II, Niazmand R, Dikshit PK, Kim BS. Recent progress in polymeric non-invasive insulin delivery. Int J Biol Macromol 2022; 203:222-243. [PMID: 35101478 DOI: 10.1016/j.ijbiomac.2022.01.134] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/04/2022] [Accepted: 01/20/2022] [Indexed: 12/12/2022]
Abstract
The design of carriers for insulin delivery has recently attracted major research attentions in the biomedical field. In general, the release of drug from polymers is driven via a variety of polymers. Several mechanisms such as matrix release, leaching of drug, swelling, and diffusion are usually adopted for the release of drug through polymers. Insulin is one of the most predominant therapeutic drugs for the treatment of both diabetes mellitus; type-I (insulin-dependent) and type II (insulin-independent). Currently, insulin is administered subcutaneously, which makes the patient feel discomfort, pain, hyperinsulinemia, allergic responses, lipodystrophy surrounding the injection area, and occurrence of miscarried glycemic control. Therefore, significant research interest has been focused on designing and developing new insulin delivery technologies to control blood glucose levels and time, which can enhance the patient compliance simultaneously through alternative routes as non-invasive insulin delivery. The aim of this review is to emphasize various non-invasive insulin delivery mechanisms including oral, transdermal, rectal, vaginal, ocular, and nasal. In addition, this review highlights different smart stimuli-responsive insulin delivery systems including glucose, pH, enzymes, near-infrared, ultrasound, magnetic and electric fields, and the application of various polymers as insulin carriers. Finally, the advantages, limitations, and the effect of each non-invasive route on insulin delivery are discussed in detail.
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Affiliation(s)
- Farzaneh Sabbagh
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Ida Idayu Muhamad
- Universiti Teknologi Malaysia, Department of Chemical Engineering, 81310, Johor, Malaysia
| | - Razieh Niazmand
- Department of Food Chemistry, Research Institute of Food Science and Technology, Mashhad, Iran
| | - Pritam Kumar Dikshit
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur 522 502, Andhra Pradesh, India
| | - Beom Soo Kim
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea.
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Property modulation of the alginate-based hydrogel via semi-interpenetrating polymer network (semi-IPN) with poly(vinyl alcohol). Int J Biol Macromol 2021; 193:1068-1077. [PMID: 34798186 DOI: 10.1016/j.ijbiomac.2021.11.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 10/26/2021] [Accepted: 11/10/2021] [Indexed: 11/22/2022]
Abstract
Hydrogels have been demonstrated as an attractive tool due to their extraordinary water-absorbing property. Specifically, hydrogels composed of natural polymers like polysaccharides have long been the ideal candidate because they are abundant, affordable, biocompatible, and biodegradable. However, there are unmet requirements in some practical applications because they are usually brittle and unstable. Most efforts to enhance their stability have caused unintended loss of inherent advantages, including biocompatibility and biodegradability. To balance this trade-off, here we investigate the way to modulate the property of alginate-based hydrogels by hybridizing with poly(vinyl alcohol) (PVA) via a semi-interpenetrating polymer network (semi-IPN). Thanks to the synergetic effect between alginate and PVA with a semi-IPN structure, the advantages of the alginate-based hydrogel were substantially preserved while its disadvantages were comparatively covered. We tested the stimuli-responsive behavior, degradability, mechanical stability, and physicochemical stability of the present hydrogel and verified their property was modulated by the hybridization ratio between alginate and PVA. Thereafter, long-term durability was also evaluated under a non-ideal and complex aqueous environment to prove their physiological stability enough to outlast under practical or engineering conditions. Considering that the properties were by and large controllable without losing the advantages of polysaccharides, we anticipate the present approach for the hydrogel design and property tuning methods paves the way for the value-added applications for natural hydrogels in various fields.
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Preparation of cast chitosan/polyether sulfone/Fe3O4 modified with mercapto and amine groups as a novel nanohybrid adsorbent for heavy metal removal from single and binary aqueous systems. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04582-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Fujimoto K, Yamawaki-Ogata A, Narita Y, Kotsuchibashi Y. Fabrication of Cationic Poly(vinyl alcohol) Films Cross-Linked Using Copolymers Containing Quaternary Ammonium Cations, Benzoxaborole, and Carboxy Groups. ACS OMEGA 2021; 6:17531-17544. [PMID: 34278139 PMCID: PMC8280637 DOI: 10.1021/acsomega.1c02013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/16/2021] [Indexed: 05/26/2023]
Abstract
Water-insoluble cationic poly(vinyl alcohol) (PVA) films were fabricated using a mixed aqueous solution of PVA and poly([2-(methacryloyloxy)ethyl]trimethylammonium chloride (METAC)-co-methacrylic acid (MAAc)-co-5-methacrylamido-1,2-benzoxaborole (MAAmBO)) copolymer (3D). The surface of the PVA film is typically negatively charged, and simple fabrication methods for water-insoluble PVA films with cationic surface charges are required to expand their application fields. METAC, which has a permanent positive charge owing to the presence of a quaternary ammonium cation, was selected as the cationic unit. The MAAc and MAAmBO units were used as two types of cross-linking structures for the thermal cross-linking of the hydroxy and carboxy groups of the MAAc unit (covalent bonding) as well as the diol and benzoxaborole groups of the MAAmBO unit (dynamic covalent bonding). The films were thermally cross-linked at 135 °C for 4 h without the addition of materials. After immersion in surplus water at 80 °C for 3 h, the cross-linked PVA/3D films retained almost 100% of their weights. The ζ-potential of the water-insoluble PVA/3D film was 9.4 ± 0.8 mV. The PVA/3D film was strongly dyed using anionic acid red 1 (AR1) because of its positively charged surface. Interestingly, it could also be slightly dyed using cationic methylene blue (MB) and became transparent (original state) after immersion in water for 2 days. These results suggested that positive and negative charges coexisted in the PVA/3D film, and the surface properties were positively inclined. Moreover, the degree of hemolysis of the PVA/3D films was similar to that of the negative control, which showed high blood compatibility. To our knowledge, this is the first report on the fabrication of water-insoluble cationic PVA films using two types of cross-linking structures containing carboxy and benzoxaborole groups. The cross-linked PVA films were analyzed using Fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry (DSC), and contact angle (CA) and ζ-potential measurement, as well as by determining the mechanical properties, adsorption of charged molecules, and biocompatibility. These readily fabricated water-insoluble PVA films with positive charges can show potential applications in sensors, adsorption systems, and antimicrobial materials.
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Affiliation(s)
- Kazuma Fujimoto
- Department
of Materials and Life Science, Shizuoka
Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
| | - Aika Yamawaki-Ogata
- Department
of Cardiac Surgery, Nagoya University Graduate
School of Medicine, 65
Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Yuji Narita
- Department
of Cardiac Surgery, Nagoya University Graduate
School of Medicine, 65
Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Yohei Kotsuchibashi
- Department
of Materials and Life Science, Shizuoka
Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
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Lee SJ, Lim HW, Park SH. Adsorptive seawater desalination using MOF-incorporated Cu-alginate/PVA beads: Ion removal efficiency and durability. CHEMOSPHERE 2021; 268:128797. [PMID: 33172669 DOI: 10.1016/j.chemosphere.2020.128797] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/27/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
With the worsening water scarcity problem, seawater desalination has been receiving gradually increasing attention. Ion adsorptive desalination was introduced as one of the seawater desalination techniques. In our previous study, metal-organic framework (MOF)-incorporated single-network alginate (MOF-Alg(Cu)) beads were used to adsorb ions in seawater. In the present study, MOF-incorporated Cu-based alginate/PVA hydrogel (MOF-Alg(Cu)/PVA) beads were fabricated to enhance the ion adsorption desalination technique. Cu-based MOFs were successfully synthesized in situ on an interpenetrating polymer network (IPN). Given that the IPN hydrogel beads have high stability, the amount of MOF particles extracted during the adsorption of ions is reduced. The fabricated MOF-Alg(Cu)/PVA beads exhibit efficient removal of dissolved ions in artificial seawater and NaCl solution with varied concentrations. The ion adsorption characteristics were evaluated on the basis of adsorption kinetics, adsorption isotherms, and dosage of adsorbent. The repeat cycle tests show that more than half of the ion removal efficiency was maintained after 10 cycle tests. The concentration of artificial seawater was reduced to 1500 ppm by employing MOF-Alg(Cu)/PVA beads through a multistage experiment. Compared with other seawater desalination techniques, the proposed adsorptive desalination technique using MOF-Alg(Cu)/PVA beads will pave the way for developing a new ecofriendly and energy-saving approach.
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Affiliation(s)
- Sang Joon Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, South Korea.
| | - Hyeong Woo Lim
- Department of Mechanical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, South Korea.
| | - Sung Ho Park
- Department of Mechanical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, South Korea.
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Zhang J, Chen L, Chen L, Qian S, Mou X, Feng J. Highly antifouling, biocompatible and tough double network hydrogel based on carboxybetaine-type zwitterionic polymer and alginate. Carbohydr Polym 2021; 257:117627. [PMID: 33541653 DOI: 10.1016/j.carbpol.2021.117627] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/15/2020] [Accepted: 01/06/2021] [Indexed: 11/17/2022]
Abstract
Because of resistance to bio-macromolecular adhesion, antifouling hydrogels have attracted great attention in biomedical field. But traditional antifouling hydrogels made by hydrophilic polymers are always poor of mechanical properties. Herein, a new hybrid ionic-covalent cross-linked double network (DN) hydrogel was prepared by a simple one-pot method based on sodium alginate and the zwitterionic material carboxybetaine acrylamide (CBAA). The DN hydrogel has good mechanical properties, including high elastic modulus (0.28 MPa), high tensile strength (0.69 MPa), as well as good self-recovery capability. More importantly, the DN hydrogel is highly resistance to the adsorption of non-specific protein, cells, bacteria and algae, exhibiting an outstanding antifouling property. The in vitro and in vivo experiments prove that the DN hydrogel is highly biocompatible. This study provides a new strategy for the preparation of antifouling DN hydrogels with good mechanical properties for different needs, such as tissue scaffolds, wound dressings, implantable devices, and other fields.
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Affiliation(s)
- Jing Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, PR China.
| | - Lingdong Chen
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, PR China
| | - Liqun Chen
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, PR China
| | - Sunxiang Qian
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, PR China
| | - Xiaozhou Mou
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, Zhejiang, 310014, PR China.
| | - Jie Feng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, PR China.
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15
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Guo Y, An X, Fan Z. Aramid nanofibers reinforced polyvinyl alcohol/tannic acid hydrogel with improved mechanical and antibacterial properties for potential application as wound dressing. J Mech Behav Biomed Mater 2021; 118:104452. [PMID: 33756417 DOI: 10.1016/j.jmbbm.2021.104452] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/07/2021] [Accepted: 03/09/2021] [Indexed: 12/13/2022]
Abstract
The poor mechanical properties and the lack of antibacterial ability of hydrogels limit their applications as wound dressing. In this work, a novel and high strength polyvinyl alcohol (PVA)/tannic acid (TA) hydrogel with aramid nanofibers (ANFs) as the reinforcement was successfully fabricated. The surface composition and microstructure of the hydrogel were characterized by fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The mechanical properties, water content and swelling behaviors, as well as the antibacterial abilities and biocompatibility of the prepared hydrogel were systematically analyzed as well. The results indicated that the prepared hydrogel showed excellent mechanical properties. The tensile strength and elongation of the prepared hydrogel can respectively reach 2.06 MPa and 950% owing to the formation of the multiple H bonds among PVA, ANFs and TA. What's more, PVA/ANFs/TA (PAT) hydrogel possessed shape memory and broad-spectrum antibacterial properties against S. aureus, E. coli and P. aeruginosa (100% antibacterial rate) at the concentration of 12 mg/mL. PAT hydrogels also had low cytotoxicity, affirming its potential application as wound dressing.
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Affiliation(s)
- Yuqing Guo
- School of Stomatology, Lanzhou University, Lanzhou, 730000, PR China
| | - Xiaoli An
- School of Stomatology, Lanzhou University, Lanzhou, 730000, PR China
| | - Zengjie Fan
- School of Stomatology, Lanzhou University, Lanzhou, 730000, PR China.
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16
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Novel alginate-cellulose nanofiber-poly(vinyl alcohol) hydrogels for carrying and delivering nitrogen, phosphorus and potassium chemicals. Int J Biol Macromol 2021; 172:330-340. [PMID: 33453256 DOI: 10.1016/j.ijbiomac.2021.01.063] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/09/2021] [Accepted: 01/11/2021] [Indexed: 12/21/2022]
Abstract
Novel nanocomposite hydrogels were successfully prepared by blending and crosslinking sodium alginate (SA), poly(vinyl alcohol) (PVA) and cellulose nanofibers (CNFs) in the presence of a fertilizer formulation containing nitrogen (N), phosphorus (P) and potassium (K). The hydrogels had a macroporous flexible core and a microporous semi- interpenetrating polymer network (IPN) shell. The crystalline nature of the NPK chemicals was retained in the hydrogel nanocomposite network. Furthermore, the SA/CNF/PVA-based hydrogels showed a higher water-retention capacity in both deionized water and mixed soil. The swelling behavior in various physiological pH, salt and alkali solutions exhibited good sensitivity. The NPK release from SA/CNF/NPK and SA/CNF/PVA/NPK hydrogels was controlled by Fickian diffusion in both water and soil based on the Korsmeyer-Peppas release kinetics model (n < 0.5). Therefore, the prepared hydrogels have the potential for applications in drought-prone and/or fertilizer-loss regions for future development of precision agriculture and horticulture.
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17
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Massarelli E, Silva D, Pimenta AFR, Fernandes AI, Mata JLG, Armês H, Salema-Oom M, Saramago B, Serro AP. Polyvinyl alcohol/chitosan wound dressings loaded with antiseptics. Int J Pharm 2020; 593:120110. [PMID: 33246052 DOI: 10.1016/j.ijpharm.2020.120110] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/27/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023]
Abstract
Wound care remains a challenge in healthcare. This work aimed to develop a new polyvinyl alcohol (PVA)/chitosan (Ch) based wound dressing able to ensure protection, hydration and a controlled release of antiseptics, as alternative to actual treatments. Two distinct formulations (1:1 and 3:1, w/w) were prepared, sterilized by autoclaving and characterized concerning surface morphology, degradation over the time, mechanical properties and hydrophilicity. Both dressings revealed adequate properties for the intended purpose. The dressings were loaded with chlorhexidine (CHX) and polyhexanide (PHMB) and the drug release profiles were determined using Franz diffusion cells. The release of PHMB was more sustained than CHX, lasting for 2 days. As the amounts of drugs released by PVA/Ch 1:1 were greater, the biological tests were done only with this formulation. The drug loaded dressings revealed antibacterial activity against S. aureus and S. epidermidis, but only the ones loaded with PHMB showed adequate properties in terms of cytotoxicity and irritability. The application of this elastic dressing in the treatment of wounds in a dog led to faster recovery than conventional treatment, suggesting that the material can be a promising alternative in wound care.
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Affiliation(s)
- E Massarelli
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy
| | - D Silva
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - A F R Pimenta
- Bioceramed, Rua José Gomes Ferreira n° 1 - Armazém D, 2660-360 São Julião do Tojal, Loures, Portugal.
| | - A I Fernandes
- Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511 Caparica, Portugal
| | - J L G Mata
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - H Armês
- Hospital Veterinário de S. Bento, Rua de S. Bento, 358-A, 1200-822 Lisboa, Portugal
| | - M Salema-Oom
- Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511 Caparica, Portugal
| | - B Saramago
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - A P Serro
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511 Caparica, Portugal.
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18
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Highly stable silver nanoparticles containing guar gum modified dual network hydrogel for catalytic and biomedical applications. Carbohydr Polym 2020; 248:116786. [PMID: 32919574 DOI: 10.1016/j.carbpol.2020.116786] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 12/27/2022]
Abstract
Although many preparation methods have been reported till date, it is still a great challenge to prepare silver nanoparticles (AgNPs) that simultaneously possess high stability and enhanced applicability. We report a rapid and efficient synthesis of AgNPs containing polyvinyl alcohol (PVA)-guar gum (GG) smart hydrogel composite, which exhibited pH-dependent swelling and enhanced mechanical strength. The AgNPs were synthesized in situ in the PVA-GG hydrogel from various concentrations of the AgNO3 precursor solution in the presence of NaBH4. Stable AgNPs (90 days) of 10-20 nm uniformly dispersed in PVA-GG hydrogel was obtained. Simultaneously, at the optimum concentration of AgNO3 (0.01 M), the tensile strength and elongation at break were enhanced by 74 % and 11 %, and swelling capacity was increased by 18 % as compared to PVA-GG hydrogel (control). The PVA-GG-AgNPs hydrogel composite exhibited excellent catalytic activity and antibacterial property, which makes them a suitable candidate for industrial applications.
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19
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Jafarnejad M, Asli MD, Taromi FA, Manoochehri M. Synthesis of multi-functionalized Fe3O4-NH2-SH nanofiber based on chitosan for single and simultaneous adsorption of Pb(II) and Ni(II) from aqueous system. Int J Biol Macromol 2020; 148:201-217. [DOI: 10.1016/j.ijbiomac.2020.01.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/28/2019] [Accepted: 01/03/2020] [Indexed: 02/02/2023]
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20
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Xu M, Qin M, Zhang X, Zhang X, Li J, Hu Y, Chen W, Huang D. Porous PVA/SA/HA hydrogels fabricated by dual-crosslinking method for bone tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:816-831. [DOI: 10.1080/09205063.2020.1720155] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mengjie Xu
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Miao Qin
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Xiumei Zhang
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Xiaoyu Zhang
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Jingxuan Li
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Yinchun Hu
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Weiyi Chen
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
- Shanxi Key Laboratory of Material Strength & Structural Impact, Institute of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-Biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
- Shanxi Key Laboratory of Material Strength & Structural Impact, Institute of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
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21
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Kong C, Zhao X, Li Y, Yang S, Chen YM, Yang Z. Ion-Induced Synthesis of Alginate Fibroid Hydrogel for Heavy Metal Ions Removal. Front Chem 2020; 7:905. [PMID: 31998694 PMCID: PMC6966715 DOI: 10.3389/fchem.2019.00905] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 12/16/2019] [Indexed: 02/02/2023] Open
Abstract
Design and synthesis of environmentally friendly adsorbents with high adsorption capacities are urgently needed to control pollution of water resources. In this work, a calcium ion-induced approach was used to synthesize sodium alginate fibroid hydrogel (AFH). The as-prepared AFH has certain mechanical strength, and the mechanical strength is enhanced especially after the adsorption of heavy metal ions, which is very convenient for the recovery. AFH exhibited excellent adsorption performances for Cu2+, Cd2+, and Pb2+ ions and displayed very high saturated adsorption capacities (Qe) of 315.92 mg·g-1 (Cu2+), 232.35 mg·g-1 (Cd2+), and 465.22 mg·g-1 (Pb2+) with optimized pH values (3.0-4.0) and temperature (303 K). The study of isotherms and kinetics indicated that adsorption processes of heavy metal ions fitted well with the pseudo-second-order kinetics model and the Langmuir model. Pb2+ was found to have the strongest competitiveness among the three heavy metal ions. Thus, AFH has great application prospects in the field of heavy metal ions removing from wastewater.
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Affiliation(s)
- Chuncai Kong
- School of Science, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an, China
| | - Xueqi Zhao
- School of Science, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an, China
| | - Yingju Li
- School of Science, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an, China
| | - Sen Yang
- School of Science, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an, China
| | - Yong Mei Chen
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Key Laboratory of Leather Cleaner Production, China National Light Industry, Xi'an, China
| | - Zhimao Yang
- School of Science, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an, China
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22
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Costa NN, de Faria Lopes L, Ferreira DF, de Prado EML, Severi JA, Resende JA, de Paula Careta F, Ferreira MCP, Carreira LG, de Souza SOL, Cotrim MAP, Boeing T, de Andrade SF, Oréfice RL, Villanova JCO. Polymeric films containing pomegranate peel extract based on PVA/starch/PAA blends for use as wound dressing: In vitro analysis and physicochemical evaluation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 109:110643. [PMID: 32229007 DOI: 10.1016/j.msec.2020.110643] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 10/07/2019] [Accepted: 01/03/2020] [Indexed: 01/06/2023]
Abstract
Chronic wounds constitute a serious public health problem, and developing pharmaceutical dosage forms to ensure patient comfort and safety, as well as optimizing treatment effectiveness, are of great interest in the pharmaceutical, medical and biomaterial fields. In this work, the preparation of films based on blends of poly(vinyl alcohol), starch and poly(acrylic acid), polymers widely used as pharmaceutical excipients, and pomegranate peel extract (PPE), a bioactive compound with antimicrobial and healing activities relevant to the use as a bioactive wound dressing, was proposed. Initially, the minimum inhibitory concentration (MIC) of the PPE was investigated by an in vitro method. Then, the best concentration of the PPE to be used to prepare the films was researched using an antimicrobial susceptibility test with the disc diffusion method. The microbiological assay was performed in films prepared by the solvent casting method in the presence of two concentrations of PPE: 1.25% w/v and 2.5% w/v. Films containing the lower PPE concentration showed antimicrobial activity against Staphylococcus aureus and Staphylococcus epidermidis, with a difference that was not considered statistically significant when compared to the higher concentration of the extract. Therefore, the films prepared with the lower proportion of PPE (1.25% w/v) were considered for the other studies. The miscibility and stability of the extract in the films were investigated by thermal analysis. Parameters that determine the barrier properties of the films were also investigated by complementary techniques. Finally, in vitro biological tests were performed for safety evaluation and activity research. Analysis of the results showed that the incorporation of the higher proportion of starch in the blend (15% v/v) (PVA:S:PAA:PPE4) yielded smooth, transparent, and domain-free films without phase separation. Additionally, the PVA:S:PAA:PPE4 film presented barrier properties suitable for use as a cover. These films, when subjected to the in vitro hemolytic activity assay, were nonhemolytic and biocompatible. No toxicity from the extract was observed at the concentrations studied. The results of the wound healing in vitro test showed that films containing 1.25% PPE are efficient in reducing the scratch open area, provoking almost total closure of the scratches within 48 h without cytotoxicity.
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Affiliation(s)
- Nubya Nascimento Costa
- Programa de pós-graduação em Ciências Veterinárias, Departamento de Ciências Veterinárias, Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo - UFES, 29.500-000, Alegre, ES, Brazil
| | - Lohanna de Faria Lopes
- Laboratório de Produção Farmacêutica, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e da Saúde, Universidade Federal do Espírito Santo - UFES, 29.500-000 Alegre, ES, Brazil
| | - Daiana Freitas Ferreira
- Laboratório de Produção Farmacêutica, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e da Saúde, Universidade Federal do Espírito Santo - UFES, 29.500-000 Alegre, ES, Brazil
| | - Elisabeth Maria López de Prado
- Laboratório de Produção Farmacêutica, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e da Saúde, Universidade Federal do Espírito Santo - UFES, 29.500-000 Alegre, ES, Brazil
| | - Juliana Aparecida Severi
- Programa de pós-graduação em Ciências Veterinárias, Departamento de Ciências Veterinárias, Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo - UFES, 29.500-000, Alegre, ES, Brazil; Laboratório de Produção Farmacêutica, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e da Saúde, Universidade Federal do Espírito Santo - UFES, 29.500-000 Alegre, ES, Brazil
| | - Juliana Alves Resende
- Programa de pós-graduação em Ciências Veterinárias, Departamento de Ciências Veterinárias, Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo - UFES, 29.500-000, Alegre, ES, Brazil
| | - Francisco de Paula Careta
- Programa de pós-graduação em Ciências Veterinárias, Departamento de Ciências Veterinárias, Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo - UFES, 29.500-000, Alegre, ES, Brazil; Laboratório de Produção Farmacêutica, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e da Saúde, Universidade Federal do Espírito Santo - UFES, 29.500-000 Alegre, ES, Brazil
| | - Maria Carolina Pimentel Ferreira
- Departamento de Engenharia Rural, Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo - UFES, 29.500-000 Alegre, ES, Brazil
| | - Lilian Gasparelli Carreira
- Departamento de Engenharia Rural, Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo - UFES, 29.500-000 Alegre, ES, Brazil
| | - Sarah Oliveira Lamas de Souza
- Laboratório de Engenharia de Polímeros e Compósitos - LEPCom, Escola de Engenharia, Universidade Federal de Minas Gerais - UFMG, 31.270-901 Belo Horizonte, MG, Brazil
| | - Monique Alvarenga Pinto Cotrim
- Laboratório de Engenharia de Polímeros e Compósitos - LEPCom, Escola de Engenharia, Universidade Federal de Minas Gerais - UFMG, 31.270-901 Belo Horizonte, MG, Brazil
| | - Thaise Boeing
- Núcleo de Investigacões Químico-Farmacêuticas - NIQFAR, Universidade do Vale do Itajaí - UNIVALI, 88.302-202 Itajaí, SC, Brazil
| | - Sérgio Faloni de Andrade
- Núcleo de Investigacões Químico-Farmacêuticas - NIQFAR, Universidade do Vale do Itajaí - UNIVALI, 88.302-202 Itajaí, SC, Brazil
| | - Rodrigo Lambert Oréfice
- Laboratório de Engenharia de Polímeros e Compósitos - LEPCom, Escola de Engenharia, Universidade Federal de Minas Gerais - UFMG, 31.270-901 Belo Horizonte, MG, Brazil
| | - Janaina Cecília Oliveira Villanova
- Programa de pós-graduação em Ciências Veterinárias, Departamento de Ciências Veterinárias, Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo - UFES, 29.500-000, Alegre, ES, Brazil; Laboratório de Produção Farmacêutica, Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e da Saúde, Universidade Federal do Espírito Santo - UFES, 29.500-000 Alegre, ES, Brazil.
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Hakuto N, Saito K, Kirihara M, Kotsuchibashi Y. Preparation of cross-linked poly(vinyl alcohol) films from copolymers with benzoxaborole and carboxylic acid groups, and their degradability in an oxidizing environment. Polym Chem 2020. [DOI: 10.1039/d0py00153h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Functionalized PVA films were prepared from copolymers with benzoxaborole and carboxyl groups.
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Affiliation(s)
- Nao Hakuto
- Department of Materials and Life Science
- Shizuoka Institute of Science and Technology
- Fukuroi
- Japan
| | - Katsuya Saito
- Department of Materials and Life Science
- Shizuoka Institute of Science and Technology
- Fukuroi
- Japan
| | - Masayuki Kirihara
- Department of Materials and Life Science
- Shizuoka Institute of Science and Technology
- Fukuroi
- Japan
| | - Yohei Kotsuchibashi
- Department of Materials and Life Science
- Shizuoka Institute of Science and Technology
- Fukuroi
- Japan
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24
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Li X, Qin H, Zhang X, Guo Z. Triple-network hydrogels with high strength, low friction and self-healing by chemical-physical crosslinking. J Colloid Interface Sci 2019; 556:549-556. [DOI: 10.1016/j.jcis.2019.08.100] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/25/2019] [Accepted: 08/26/2019] [Indexed: 12/31/2022]
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25
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Nkhwa S, Kemal E, Gurav N, Deb S. Dual polymer networks: a new strategy in expanding the repertoire of hydrogels for biomedical applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:114. [PMID: 31598796 PMCID: PMC6785588 DOI: 10.1007/s10856-019-6316-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 09/23/2019] [Indexed: 05/04/2023]
Abstract
Inspired by the double network hydrogel systems we report the formulation of dual networks, which expands the repertoire of this class of materials for potential biomedical applications. The tough dual network hydrogels were designed through sequential interpenetrating polymer formation, applying green chemistry and low-cost methods, devoid of any initiator-activator complexes that may pose risks in biomedical applications. The dual networks were synthesized in two steps, firstly the water soluble poly(vinyl alcohol) was subjected to cryogelation that formed the first network, which was then expanded by intrusion of a dilute solution of sodium alginate and complexed with a solution of calcium chloride under ambient conditions and further freeze-thawed. These hydrogels are flexible, ductile and porous with the ability to absorb and retain fluids as well as possess the versatility to easily incorporate biological molecules/drugs/antibiotics to be applied in tissue matrices or drug delivery systems. The dual network hydrogels can be tailored to have varying mechanical properties, shapes, size, thickness and particularly can be made physically porous if required, to suit the users intended application.
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Affiliation(s)
- Shathani Nkhwa
- Centre for Oral Clinical and Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Hospital, Floor 17, Tower Wing, London Bridge, London, SE1 9RT, UK
| | - Evren Kemal
- Centre for Oral Clinical and Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Hospital, Floor 17, Tower Wing, London Bridge, London, SE1 9RT, UK
| | - Neelam Gurav
- Centre for Oral Clinical and Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Hospital, Floor 17, Tower Wing, London Bridge, London, SE1 9RT, UK
| | - Sanjukta Deb
- Centre for Oral Clinical and Translational Sciences, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy's Hospital, Floor 17, Tower Wing, London Bridge, London, SE1 9RT, UK.
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26
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Jahanabadi R, Sheikh N, Mahdavi H, Bagheri R. Effect of electron‐beam irradiation followed by annealing on the physical properties of poly(vinyl alcohol)–chitosan blend films at different weight ratios. J Appl Polym Sci 2019. [DOI: 10.1002/app.47820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Robabe Jahanabadi
- Polymer Group, Chemical Engineering DepartmentIsfahan University of Technology Isfahan Iran
| | - Nasrin Sheikh
- Radiation Application Research SchoolNuclear Science and Technology Research Institute, P.O. Box 11365‐3486 Tehran Iran
| | - Hamid Mahdavi
- Novel Drug Delivery Systems DepartmentPolymer Science Faculty, Iran Polymer and Petrochemical Institute, P.O. Box 14965‐115 Tehran Iran
| | - Rouhollah Bagheri
- Polymer Group, Chemical Engineering DepartmentIsfahan University of Technology Isfahan 84156‐83111 Iran
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Mechanically Robust Gastroretentive Drug-Delivery Systems Capable of Controlling Dissolution Behaviors of Coground β-Lapachone. Pharmaceutics 2019; 11:pharmaceutics11060271. [PMID: 31185692 PMCID: PMC6630442 DOI: 10.3390/pharmaceutics11060271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 05/27/2019] [Accepted: 06/03/2019] [Indexed: 02/07/2023] Open
Abstract
In this study, we aimed to design a highly swellable and mechanically robust matrix tablet (SMT) as a gastroretentive drug-delivery system (GRDDS) capable of improving the dissolution behavior of β-lapachone with low aqueous solubility. For the preparation of SMTs, the cogrinding technique and freeze–thaw method were used to disperse β-lapachone in SMTs in an amorphous state and to enhance the swelling and mechanical properties of SMTs, respectively. As a result, the crystallinity of coground β-lapachone incorporated in the SMTs was found to be considerably decreased; thereby, the dissolution rates of the drug in a simulated gastric fluid could be substantially increased. The SMTs of β-lapachone also demonstrated significantly enhanced swelling and mechanical properties compared to those of a marketed product. The reason for this might be because the physically crosslinked polymeric networks with a porous structure that were formed in SMTs through the freeze–thaw method. In addition, β-lapachone was gradually released from the SMTs in 6 h. Therefore, SMTs of β-lapachone developed in this study could be used as GRDDS with appropriate swelling and mechanical properties for improving the dissolution behavior of hydrophobic drugs such as β-lapachone.
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28
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Kudo Y, Ono J, Kotsuchibashi Y. Controlled water-soluble properties of poly(vinyl alcohol) films via the benzoxaborole-containing temperature-responsive copolymers. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.04.074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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29
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Flórez-Castillo J, Ropero-Vega J, Perullini M, Jobbágy M. Biopolymeric pellets of polyvinyl alcohol and alginate for the encapsulation of Ib-M6 peptide and its antimicrobial activity against E. coli. Heliyon 2019; 5:e01872. [PMID: 31194071 PMCID: PMC6551476 DOI: 10.1016/j.heliyon.2019.e01872] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/21/2019] [Accepted: 05/29/2019] [Indexed: 11/24/2022] Open
Abstract
The encapsulation of Ib-M6 antibacterial peptide in pellets of polyvinyl alcohol (PVA) and polyvinyl alcohol-alginate (PVA-Alg) matrices was carried out in order to explore its controlled release and activity against Escherichia coli K-12. The pellets were obtained by combined ice segregation induced self-assembly (ISISA) and freezing-thawing methods and their microstructure was studied by scanning electron microscopy. Bromothymol blue was used as a model compound to study the transport mechanisms and release from pellets. The results show that there is a significant effect of the total concentration of PVA precursor solutions, the mass ratio of PVA of different molecular weights and the addition of alginate on the microstructure and transport properties of pellets. The antibacterial activity of Ib-M6 against Escherichia coli K-12 was not affected by the encapsulation in PVA pellets. However, the release of Ib-M6 from PVA-Alg pellets was not possible, probably due to the electrostatic interaction of positively charged Ib-M6 and negatively alginate structure. Nonetheless, the controlled release of Ib-M6 from polymeric matrices can be fitting by modifying parameters such as the concentration and type of polymer precursors.
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Affiliation(s)
- J.M. Flórez-Castillo
- Universidad de Santander, Facultad de Ciencias Exactas, Naturales y Agropecuarias, Ciencias Básicas y Aplicadas para la Sostenibilidad – CIBAS, Calle 70 No. 55-210, C.P. 680003, Bucaramanga (Santander), Colombia
- Universidad Industrial de Santander, Carrera 27 calle 9 Ciudad Universitaria, C.P. 680001, Bucaramanga (Santander), Colombia
| | - J.L. Ropero-Vega
- Universidad de Santander, Facultad de Ciencias Exactas, Naturales y Agropecuarias, Ciencias Básicas y Aplicadas para la Sostenibilidad – CIBAS, Calle 70 No. 55-210, C.P. 680003, Bucaramanga (Santander), Colombia
| | - Mercedes Perullini
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía – INQUIMAE, Universidad de Buenos Aires, Ciudad Universitaria Pabellón 2 (1428), Buenos Aires, 1053, Argentina
| | - Matias Jobbágy
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía – INQUIMAE, Universidad de Buenos Aires, Ciudad Universitaria Pabellón 2 (1428), Buenos Aires, 1053, Argentina
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30
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Kasapoglu-Calik M, Ozdemir M. Synthesis and controlled release of curcumin-β-cyclodextrin inclusion complex from nanocomposite poly(N
-isopropylacrylamide/sodium alginate) hydrogels. J Appl Polym Sci 2019. [DOI: 10.1002/app.47554] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Meltem Kasapoglu-Calik
- Department of Chemical Engineering; Gebze Technical University; Gebze Kocaeli 41400 Turkey
- Department of Chemical Technology, Gedik Vocational School; Istanbul Gedik University; Istanbul 34913 Turkey
| | - Murat Ozdemir
- Department of Chemical Engineering; Gebze Technical University; Gebze Kocaeli 41400 Turkey
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31
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Fathi P, Sikorski M, Christodoulides K, Langan K, Choi YS, Titcomb M, Ghodasara A, Wonodi O, Thaker H, Vural M, Behrens A, Kofinas P. Zeolite-loaded alginate-chitosan hydrogel beads as a topical hemostat. J Biomed Mater Res B Appl Biomater 2018; 106:1662-1671. [PMID: 28842967 PMCID: PMC5826813 DOI: 10.1002/jbm.b.33969] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 07/21/2017] [Accepted: 07/29/2017] [Indexed: 11/06/2022]
Abstract
Hemorrhage is the leading cause of preventable death after a traumatic injury, and the largest contributor to loss of productive years of life. Hemostatic agents accelerate hemostasis and help control hemorrhage by concentrating coagulation factors, acting as procoagulants and/or interacting with erythrocytes and platelets. Hydrogel composites offer a platform for targeting both mechanical and biological hemostatic mechanisms. The goal of this work was to develop hydrogel particles composed of chitosan, alginate, and zeolite, and to assess their potential to promote blood coagulation via multiple mechanisms: erythrocyte adhesion, factor concentration, and the ability to serve as a mechanical barrier to blood loss. Several particle compositions were synthesized and characterized. Hydrogel bead composition was optimized to achieve the highest swelling capacity, greatest erythrocyte adhesion, and minimal in vitro cytotoxicity. These results suggest a polymer hydrogel-aluminosilicate composite material may serve as a platform for an effective hemostatic agent that incorporates multiple mechanisms of action. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1662-1671, 2018.
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Affiliation(s)
- Parinaz Fathi
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Michael Sikorski
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742
| | | | - Kristen Langan
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Yoon Sun Choi
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Michael Titcomb
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Anjali Ghodasara
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Omasiri Wonodi
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Hemi Thaker
- Gemstone Honors Program, University of Maryland, College Park, Maryland 20742
| | - Mert Vural
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742
| | - Adam Behrens
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742
| | - Peter Kofinas
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742
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32
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Qiu K, Haghiashtiani G, McAlpine MC. 3D Printed Organ Models for Surgical Applications. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2018; 11:287-306. [PMID: 29589961 PMCID: PMC6082023 DOI: 10.1146/annurev-anchem-061417-125935] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Medical errors are a major concern in clinical practice, suggesting the need for advanced surgical aids for preoperative planning and rehearsal. Conventionally, CT and MRI scans, as well as 3D visualization techniques, have been utilized as the primary tools for surgical planning. While effective, it would be useful if additional aids could be developed and utilized in particularly complex procedures involving unusual anatomical abnormalities that could benefit from tangible objects providing spatial sense, anatomical accuracy, and tactile feedback. Recent advancements in 3D printing technologies have facilitated the creation of patient-specific organ models with the purpose of providing an effective solution for preoperative planning, rehearsal, and spatiotemporal mapping. Here, we review the state-of-the-art in 3D printed, patient-specific organ models with an emphasis on 3D printing material systems, integrated functionalities, and their corresponding surgical applications and implications. Prior limitations, current progress, and future perspectives in this important area are also broadly discussed.
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Affiliation(s)
- Kaiyan Qiu
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA;
| | - Ghazaleh Haghiashtiani
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA;
| | - Michael C McAlpine
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA;
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33
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Dutra J, Carvalho S, Zampirolli A, Daltoé R, Teixeira R, Careta F, Cotrim M, Oréfice R, Villanova J. Papain wound dressings obtained from poly(vinyl alcohol)/calcium alginate blends as new pharmaceutical dosage form: Preparation and preliminary evaluation. Eur J Pharm Biopharm 2017; 113:11-23. [DOI: 10.1016/j.ejpb.2016.12.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 11/27/2016] [Accepted: 12/06/2016] [Indexed: 11/16/2022]
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34
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DEMİRBİLEK M, TÜRKOĞLU LAÇİN N, AKTÜRK S. N-Acetylglucoseamine modified alginate sponges as scaffolds for skin tissue engineering. Turk J Biol 2017. [DOI: 10.3906/biy-1704-31] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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35
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Martínez-Gómez F, Guerrero J, Matsuhiro B, Pavez J. In vitro release of metformin hydrochloride from sodium alginate/polyvinyl alcohol hydrogels. Carbohydr Polym 2017; 155:182-191. [DOI: 10.1016/j.carbpol.2016.08.079] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 08/05/2016] [Accepted: 08/25/2016] [Indexed: 11/30/2022]
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36
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Tuncay Tanrıverdi S, Cheaburu-Yilmaz CN, Carbone S, Özer Ö. Preparation and in vitro evaluation of melatonin-loaded HA/PVA gel formulations. Pharm Dev Technol 2016; 23:815-825. [PMID: 27915492 DOI: 10.1080/10837450.2016.1268158] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Melatonin-loaded hyaluronic acid (HA) and poly(vinyl alcohol) (PVA) gels were prepared by using freeze-thaw technique and an emulsion method followed by freeze-thaw technique to produce a new synergistic system for topical application. Freeze-thaw hydrogels and emulgels were characterized by means of Fourier transform infrared spectroscopy, rheology and swelling tests. The porous structure of the hydrogels was shown by scanning electron microscopy observations and thermal properties were tested by differential scanning calorimetry measurements. Bioadhesion and in vitro release characterization of formulations were performed by texture profile analysis and dialysis bag method, respectively. The pore size of both formulations was ranging from 900 nm to 30 μm. Melatonin showed a good compatibility with the polymeric matrices as the pores were smaller for the drug-loaded systems. In vitro release studies showed that the release was improved by emulgel formulations. After 24 h, the release percentage was found to be 13.240% ± 1.094 and 15.192% ± 2.270 for hydrogel and emulgel, respectively. Emulgels had better bioadhesion properties than simple freeze-thaw samples. As a conclusion, regarding the in vitro characterization studies HA and PVA hydrogel and emulgel formulations and their lyophilized forms could be promising systems for topical application of melatonin.
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Affiliation(s)
- Sakine Tuncay Tanrıverdi
- a Department of Pharmaceutical Technology, Faculty of Pharmacy , Ege University , Bornova-İzmir , Turkey
| | - Catalina Natalia Cheaburu-Yilmaz
- a Department of Pharmaceutical Technology, Faculty of Pharmacy , Ege University , Bornova-İzmir , Turkey.,b Department of Physical Chemistry of Polymers , "Petru Poni" Institute of Macromolecular Chemistry , Iasi , Romania
| | - Sonia Carbone
- c Faculty of Pharmacy , University of Turin , Torino , Italy
| | - Özgen Özer
- a Department of Pharmaceutical Technology, Faculty of Pharmacy , Ege University , Bornova-İzmir , Turkey
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37
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Experimental investigation of the effects of crosslinking processes on the swelling and hygroscopic performances of a poly(vinyl alcohol) membrane. J Appl Polym Sci 2016. [DOI: 10.1002/app.44481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Composite vascular scaffold combining electrospun fibers and physically-crosslinked hydrogel with copper wire-induced grooves structure. J Mech Behav Biomed Mater 2016; 61:12-25. [DOI: 10.1016/j.jmbbm.2016.01.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 12/23/2015] [Accepted: 01/04/2016] [Indexed: 11/20/2022]
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39
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Camarero-Espinosa S, Rothen-Rutishauser B, Foster EJ, Weder C. Articular cartilage: from formation to tissue engineering. Biomater Sci 2016; 4:734-67. [PMID: 26923076 DOI: 10.1039/c6bm00068a] [Citation(s) in RCA: 180] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Hyaline cartilage is the nonlinear, inhomogeneous, anisotropic, poro-viscoelastic connective tissue that serves as friction-reducing and load-bearing cushion in synovial joints and is vital for mammalian skeletal movements. Due to its avascular nature, low cell density, low proliferative activity and the tendency of chondrocytes to de-differentiate, cartilage cannot regenerate after injury, wear and tear, or degeneration through common diseases such as osteoarthritis. Therefore severe damage usually requires surgical intervention. Current clinical strategies to generate new tissue include debridement, microfracture, autologous chondrocyte transplantation, and mosaicplasty. While articular cartilage was predicted to be one of the first tissues to be successfully engineered, it proved to be challenging to reproduce the complex architecture and biomechanical properties of the native tissue. Despite significant research efforts, only a limited number of studies have evolved up to the clinical trial stage. This review article summarizes the current state of cartilage tissue engineering in the context of relevant biological aspects, such as the formation and growth of hyaline cartilage, its composition, structure and biomechanical properties. Special attention is given to materials development, scaffold designs, fabrication methods, and template-cell interactions, which are of great importance to the structure and functionality of the engineered tissue.
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Affiliation(s)
- Sandra Camarero-Espinosa
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland.
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Sheela T, Bhajantri R, Ravindrachary V, Rathod SG, Pujari P, Poojary B, Somashekar R. Effect of UV irradiation on optical, mechanical and microstructural properties of PVA/NaAlg blends. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2014.05.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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41
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Chen Q, Cabanas-Polo S, Goudouri OM, Boccaccini AR. Electrophoretic co-deposition of polyvinyl alcohol (PVA) reinforced alginate–Bioglass® composite coating on stainless steel: Mechanical properties and in-vitro bioactivity assessment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 40:55-64. [DOI: 10.1016/j.msec.2014.03.019] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Revised: 02/16/2014] [Accepted: 03/07/2014] [Indexed: 01/18/2023]
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42
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Kuila SB, Ray SK. Dehydration of dioxane by pervaporation using filled blend membranes of polyvinyl alcohol and sodium alginate. Carbohydr Polym 2013; 101:1154-65. [PMID: 24299887 DOI: 10.1016/j.carbpol.2013.09.086] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 09/20/2013] [Accepted: 09/24/2013] [Indexed: 11/26/2022]
Abstract
Pervaporation membranes were made by solution blending of polyvinyl alcohol (PVA) and sodium alginate (SA). Accordingly, five different blends with PVA:SA weight ratio of 75:25, 50:50, 25:75, 20:80 and 10:90 designated as PS1, PS2, PS3, PS4 and PS5, respectively, were prepared. Each of these blends was crosslinked with 2, 4 and 6 wt% glutaraldehyde and the resulting fifteen (5 × 3) membranes were used for pervaporative separation of 90 wt% dioxane in water. The membranes made from PS4 and PS5 were not stable during pervaporation experiments. Among the stable membranes PS3 membrane crosslinked with 2 wt% glutaraldehyde showed the best results for flux and selectivity. Thus, it was filled with nano size sodium montmorillonite filler and used for separation of dioxane-water mixtures over the entire concentration range of 80-99.5 wt% dioxane in water. The membranes were also characterized by mechanical properties, FTIR, SEM, DTA-TGA and XRD.
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Affiliation(s)
- Sunil Baran Kuila
- Department of Chemical Engineering, Haldia Institute of Technology, Haldia, West Bengal, India
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43
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Sun X, Uyama H. A poly(vinyl alcohol)/sodium alginate blend monolith with nanoscale porous structure. NANOSCALE RESEARCH LETTERS 2013; 8:411. [PMID: 24093494 PMCID: PMC3820154 DOI: 10.1186/1556-276x-8-411] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 09/02/2013] [Indexed: 05/09/2023]
Abstract
A stimuli-responsive poly(vinyl alcohol) (PVA)/sodium alginate (SA) blend monolith with nanoscale porous (mesoporous) structure is successfully fabricated by thermally impacted non-solvent induced phase separation (TINIPS) method. The PVA/SA blend monolith with different SA contents is conveniently fabricated in an aqueous methanol without any templates. The solvent suitable for the fabrication of the present blend monolith by TINIPS is different with that of the PVA monolith. The nanostructural control of the blend monolith is readily achieved by optimizing the fabrication conditions. Brunauer Emmett Teller measurement shows that the obtained blend monolith has a large surface area. Pore size distribution plot for the blend monolith obtained by the non-local density functional theory method reveals the existence of the nanoscale porous structure. Fourier transform infrared analysis reveals the strong interactions between PVA and SA. The pH-responsive property of the blend monolith is investigated on the basis of swelling ratio in different pH solutions. The present blend monolith of biocompatible and biodegradable PVA and SA with nanoscale porous structure has large potential for applications in biomedical and environmental fields.
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Affiliation(s)
- Xiaoxia Sun
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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44
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Ma D, Cai X, Lin Q, Zhang J, Mai W, Tan S, Xue W, Wu T. Alginate hydrogel sphere improves the alkali and heat resistances of isothiazolinones with long-term antibacterial activity. J Appl Polym Sci 2013. [DOI: 10.1002/app.39293] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dong Ma
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Department of Biomedical Engineering; Jinan University; Guangzhou; 510632; People's Republic of China
| | - Xiang Cai
- Department of Chemistry; Jinan University; Guangzhou; 510632; People's Republic of China
| | - Qianming Lin
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Department of Biomedical Engineering; Jinan University; Guangzhou; 510632; People's Republic of China
| | - Jinglin Zhang
- Department of Chemistry; Jinan University; Guangzhou; 510632; People's Republic of China
| | - Wenjie Mai
- Department of Physics and Siyuan Laboratory; Jinan University; Guangzhou; 510632; People's Republic of China
| | - Shaozao Tan
- Department of Chemistry; Jinan University; Guangzhou; 510632; People's Republic of China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes; Department of Biomedical Engineering; Jinan University; Guangzhou; 510632; People's Republic of China
| | - Ting Wu
- R&D Center; Guangzhou Liby Enterprise Group Company; Limited; Guangzhou; 510170; People's Republic of China
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