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Nezhad-Mokhtari P, Asadi N, Rahmani Del Bakhshayesh A, Milani M, Gama M, Ghorbani M, Akbarzadeh A. Honey-Loaded Reinforced Film Based on Bacterial Nanocellulose/Gelatin/Guar Gum as an Effective Antibacterial Wound Dressing. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Recently, the use of bacterial nanocellulose (BNC) produced by Acetobacter, which has suitable properties for tissue engineering application as a perfect wound dressing, has attracted considerable attention. For this purpose, we successfully developed honey loaded BNC-reinforced gelatin/dialdehyde-modified
guar gum films (H/BNC/Ge/D-GG). Prepared films were studied for their morphological, thermal stability, mechanical, water solubility and degradability properties. The physicochemical properties of the developed films with or without honey loading were studied. The results indicated that by
enhancing the honey content of the film, the degradation behavior, adhesion and proliferation of NIH-3T3 fibroblast cells were improved. The films with 15 wt% of honey revealed inhibition activity against S. aureus (13.0±0.1 mm) and E. coli (15.0±1.0 mm) bacteria.
Cell culture results demonstrated that the prepared films had good cytocompatibility. Based on the results, the prepared H/BNC/Ge/D-GG films appear to have high potential for antibacterial wound dressings.
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Affiliation(s)
- Parinaz Nezhad-Mokhtari
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, 5166653431, Iran
| | - Nahideh Asadi
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, 5166653431, Iran
| | - Azizeh Rahmani Del Bakhshayesh
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, 5166653431, Iran
| | - Morteza Milani
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, 5166653431, Iran
| | - Miguel Gama
- Centro de Engenharia Biológica, Universidade do Minho, Campus de Gualtar, 4715057, Braga, Portugal
| | - Marjan Ghorbani
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, 5166614711, Iran
| | - Abolfazl Akbarzadeh
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, 5166653431, Iran
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2
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Alruwaili NK, Ahmad N, Alzarea AI, Alomar FA, Alquraini A, Akhtar S, Shahari MSB, Zafar A, Elmowafy M, Elkomy MH, Dolzhenko AV, Iqbal MS. Arabinoxylan-Carboxymethylcellulose Composite Films for Antibiotic Delivery to Infected Wounds. Polymers (Basel) 2022; 14:polym14091769. [PMID: 35566937 PMCID: PMC9103158 DOI: 10.3390/polym14091769] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/04/2022] [Accepted: 04/21/2022] [Indexed: 02/07/2023] Open
Abstract
Modern dressings should provide for local delivery of antibiotics and protect the wound from bacterial infection, dehydration and environmental factors to achieve optimal healing. The local delivery of antibiotics can reduce adverse effects and resistance challenges. In this study, we fabricated film dressings composed of arabinoxylan (AX) from Plantago ovata seed husks and carboxymethylcellulose (CMC) by a solvent cast method for the delivery of the antibiotic amikacin (AMK). To determine the suitability of the prepared AX-CMC composite films as wound dressings and drug delivery materials, their physical, chemical, mechanical, morphological, thermal, pharmaceutical, antimicrobial, cytocompatible, and drug delivery properties were investigated. The results demonstrated that the dressings were suitable for delivering the drug at the wound site in a sustained manner and keeping the environment moist for rapid healing. The AMK-loaded AX-CMC films exhibited controlled release of AMK, excellent antibacterial activity, and cytocompatibility. Thus, the AX-CMC composite films appear to be promising bioactive dressing materials for the prevention of wound infections.
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Affiliation(s)
- Nabil K. Alruwaili
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia; (N.K.A.); (A.Z.); (M.E.); (M.H.E.)
| | - Naveed Ahmad
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia; (N.K.A.); (A.Z.); (M.E.); (M.H.E.)
- Correspondence:
| | - Abdulaziz I. Alzarea
- Department of Clinical Pharmacy, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia;
| | - Fadhel A. Alomar
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia;
| | - Ali Alquraini
- Department of Pharmaceutical Chemistry, Faculty of Clinical Pharmacy, Al Baha University, Al Baha 65779, Saudi Arabia;
| | - Sultan Akhtar
- Department of Biophysics Research, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia;
| | - Muhammad Syafiq Bin Shahari
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Malaysia; (M.S.B.S.); (A.V.D.)
| | - Ameeduzzafar Zafar
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia; (N.K.A.); (A.Z.); (M.E.); (M.H.E.)
| | - Mohammed Elmowafy
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia; (N.K.A.); (A.Z.); (M.E.); (M.H.E.)
| | - Mohammed H. Elkomy
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia; (N.K.A.); (A.Z.); (M.E.); (M.H.E.)
| | - Anton V. Dolzhenko
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Malaysia; (M.S.B.S.); (A.V.D.)
| | - Mohammad Saeed Iqbal
- Department of Chemistry, Forman Christian College, Ferozepur Road, Lahore 54600, Pakistan;
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3
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Shivakumar P, Gupta MS, Jayakumar R, Gowda DV. Prospection of chitosan and its derivatives in wound healing: Proof of patent analysis (2010-2020). Int J Biol Macromol 2021; 184:701-712. [PMID: 34157330 DOI: 10.1016/j.ijbiomac.2021.06.086] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/20/2021] [Accepted: 06/11/2021] [Indexed: 12/12/2022]
Abstract
Disruption in the normal anatomy and physiology of the skin often leads to wound formation. Its healing is a pretty complex and dynamic biological process with different phases. While there are many biopolymers (and their derivatives) for wound healing purposes. One of the most popular, promising, progressive and attention-grabbing biopolymers is 'chitosan'. It is a polysaccharide biopolymer that has tremendous potential in augmenting the process of wound healing. Most importantly, the derivatives of chitosan have heavily attracted the scientific community's attention to employing them in various formulations for wound healing applications. The prime focus of the present review is to provide scientific and technological prospection about chitosan and its derivatives for wound healing activity, starting from 2010 to 2020. Besides, the review also focuses about toxicity, different formulations and products of chitosan that are currently under clinical trials for wound healing purposes are described. Through this review, we present evidence that abundantly confirms that there is a growing interest in the domain of wound healing using novel, inventive, useful and patent protected chitosan derivatives. We speculate the possibility of more patent protected chitosan derivatives in the future for wound healing applications.
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Affiliation(s)
- Pradeep Shivakumar
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Sri Shivarathreeshwara Nagar, Mysore 570 015, India
| | - Maram Suresh Gupta
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Sri Shivarathreeshwara Nagar, Mysore 570 015, India
| | - Rangasamy Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682 041, Kerala, India
| | - Devegowda Vishakante Gowda
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Sri Shivarathreeshwara Nagar, Mysore 570 015, India.
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4
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Camargo LG, de Freitas Rosa Remiro P, Rezende GS, Di Carla Santos S, Franz-Montan M, Moraes ÂM. Development of bioadhesive polysaccharide-based films for topical release of the immunomodulatory agent imiquimod on oral mucosa lesions. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Lu WC, Chuang FS, Venkatesan M, Cho CJ, Chen PY, Tzeng YR, Yu YY, Rwei SP, Kuo CC. Synthesis of Water Resistance and Moisture-Permeable Nanofiber Using Sodium Alginate-Functionalized Waterborne Polyurethane. Polymers (Basel) 2020; 12:E2882. [PMID: 33271805 PMCID: PMC7761416 DOI: 10.3390/polym12122882] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 11/26/2020] [Accepted: 11/27/2020] [Indexed: 12/12/2022] Open
Abstract
The development of nontoxic and biodegradable alginate-based materials has been a continual goal in biological applications. However, their hydrophilic nature and lack of spinnability impart water instability and poor mechanical strength to the nanofiber. To overcome these limitations, sodium alginate (SA) and waterborne polyurethane (WPU) were blended and crosslinked with calcium chloride; 30 wt % of SA exhibited good compatibility. Further addition of 10 wt % calcium chloride improved the water stability to an extremely humid region. Furthermore, the stress-strain curve revealed that the initial modulus and the elongation strength of the WPU/SA and WPU/CA blends increased with SA content, and the crosslinker concentration clearly indicated the dressing material hardness resulted from this simple blend strategy. The WPU/SA30 electrospun nanofibrous blend contained porous membranes; it exhibited good mechanical strength with water-stable, water-absorbable (37.5 wt %), and moisture-permeable (25.1 g/m2-24 h) characteristics, suggesting our cost-effective material could function as an effective wound dressing material.
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Affiliation(s)
- Wen-Chi Lu
- Research and Development Center of Smart Textile Technology, Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, Taiwan; (W.-C.L.); (M.V.); (P.-Y.C.); (Y.-R.T.); (S.-P.R.)
- Department of Applied Cosmetology, Lee-Ming Institute of Technology, New Taipei City 243083, Taiwan
| | - Fu-Sheng Chuang
- Department of Fashion and Design, Lee-Ming Institute of Technology, New Taipei City 243083, Taiwan;
| | - Manikandan Venkatesan
- Research and Development Center of Smart Textile Technology, Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, Taiwan; (W.-C.L.); (M.V.); (P.-Y.C.); (Y.-R.T.); (S.-P.R.)
| | - Chia-Jung Cho
- Research and Development Center of Smart Textile Technology, Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, Taiwan; (W.-C.L.); (M.V.); (P.-Y.C.); (Y.-R.T.); (S.-P.R.)
| | - Po-Yun Chen
- Research and Development Center of Smart Textile Technology, Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, Taiwan; (W.-C.L.); (M.V.); (P.-Y.C.); (Y.-R.T.); (S.-P.R.)
| | - Yung-Ru Tzeng
- Research and Development Center of Smart Textile Technology, Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, Taiwan; (W.-C.L.); (M.V.); (P.-Y.C.); (Y.-R.T.); (S.-P.R.)
| | - Yang-Yen Yu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan;
| | - Syang-Peng Rwei
- Research and Development Center of Smart Textile Technology, Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, Taiwan; (W.-C.L.); (M.V.); (P.-Y.C.); (Y.-R.T.); (S.-P.R.)
| | - Chi-Ching Kuo
- Research and Development Center of Smart Textile Technology, Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 10608, Taiwan; (W.-C.L.); (M.V.); (P.-Y.C.); (Y.-R.T.); (S.-P.R.)
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6
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Pires ALR, Westin CB, Hernandez-Montelongo J, Sousa IMO, Foglio MA, Moraes AM. Flexible, dense and porous chitosan and alginate membranes containing the standardized extract of Arrabidaea chica Verlot for the treatment of skin lesions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110869. [PMID: 32409038 DOI: 10.1016/j.msec.2020.110869] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/22/2020] [Accepted: 03/19/2020] [Indexed: 01/31/2023]
Abstract
The combination of chitosan (C) with alginate (A) has been explored for the production of dressings due to the positive results on wound healing. CA films can show a dense or porous flexible structure, with characteristics tunable for different applications. Porosity and flexibility can be achieved, respectively, by the addition of surfactants such as Kolliphor® P188 (P) and silicone-based compounds as Silpuran® 2130 A/B (S). Furthermore, composite matrices of these polysaccharides have potential applications as devices for releasing bioactive compounds to skin lesions. The purpose of this study was to evaluate the physicochemical and biological characteristics of flexible dense and porous CA membranes incorporating the standardized extract of Arrabidaea chica Verlot (A. chica), and also to analyze the release mechanism of the extract from different membrane formulations. The results show that the inclusion of P in the formulation allows obtaining porous matrices, promotes greater homogeneity of the mixture of the silicone gel with the suspension of polysaccharides, and increases the swelling of the polymer matrix. All formulations presented high stability, reaching a maximum mass loss of 18% after seven days. The formulations with S showed the best performance in terms of flexibility and strain at break. The presence of A. chica standardized extract did not affect negatively the characteristics of the membranes. Incorporation efficiencies of the bioactive compound above 87% were achieved, and the addition of P and S to the membrane formulation changed the release of the A. chica extract kinetics. In addition, the developed formulations did not significantly affect Vero cells proliferation.
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Affiliation(s)
- A L R Pires
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - C B Westin
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | | | - I M O Sousa
- School of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - M A Foglio
- School of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - A M Moraes
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil.
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7
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Tentor F, Siccardi G, Sacco P, Demarchi D, Marsich E, Almdal K, Bose Goswami S, Boisen A. Long lasting mucoadhesive membrane based on alginate and chitosan for intravaginal drug delivery. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:25. [PMID: 32060634 DOI: 10.1007/s10856-020-6359-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 01/07/2020] [Indexed: 05/23/2023]
Abstract
The intravaginal route of administration can be exploited to treat local diseases and for systemic delivery. In this work, we developed an alginate/chitosan membrane sufficiently stable in a simulated vaginal fluid and able to dissolve over time at a very slow and linear rate. The membrane demonstrated good mechanical properties both in its swollen and dry form. As a study case, we evaluated the viability of this potential drug delivery system for the treatment of bacterial vaginosis, a common disease affecting women in their reproductive age. Metronidazole was effectively included in the alginate/chitosan membrane and its bactericide effect was demonstrated against Staphylococcus aureus and Gardnerella vaginalis, simultaneously showing good biocompatibility with a cervix epithelial cell line. Since this alginate/chitosan membrane is stable in a simulated vaginal environment, is easy to fabricate and can be used for the controlled release of a model drug, it represents a promising drug delivery system for local intravaginal applications.
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Affiliation(s)
- Fabio Tentor
- Department of Health Technology, Technical University of Denmark, Ørsteds Plads 345C, 2800 Kgs., Lyngby, Denmark.
| | - Giorgia Siccardi
- Department of Electronics and Telecommunications, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Torino, Italy
| | - Pasquale Sacco
- Department of Life Sciences, University of Trieste, via L. Giorgieri 5, I-34127, Trieste, Italy
| | - Danilo Demarchi
- Department of Electronics and Telecommunications, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Torino, Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, I-34129, Trieste, Italy
| | - Kristoffer Almdal
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kgs., Lyngby, Denmark
| | - Sanjukta Bose Goswami
- Department of Health Technology, Technical University of Denmark, Ørsteds Plads 345C, 2800 Kgs., Lyngby, Denmark
| | - Anja Boisen
- Department of Health Technology, Technical University of Denmark, Ørsteds Plads 345C, 2800 Kgs., Lyngby, Denmark
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8
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Bueno CZ, Moraes ÂM. Influence of the incorporation of the antimicrobial agent polyhexamethylene biguanide on the properties of dense and porous chitosan-alginate membranes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:671-678. [DOI: 10.1016/j.msec.2018.07.076] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 07/07/2018] [Accepted: 07/27/2018] [Indexed: 01/05/2023]
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9
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Polysaccharides for tissue engineering: Current landscape and future prospects. Carbohydr Polym 2018; 205:601-625. [PMID: 30446147 DOI: 10.1016/j.carbpol.2018.10.039] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 09/28/2018] [Accepted: 10/12/2018] [Indexed: 12/21/2022]
Abstract
Biological studies on the importance of carbohydrate moieties in tissue engineering have incited a growing interest in the application of polysaccharides as scaffolds over the past two decades. This review provides a perspective of the recent approaches in developing polysaccharide scaffolds, with a focus on their chemical modification, structural versatility, and biological applicability. The current major limitations are assessed, including structural reproducibility, the narrow scope of polysaccharide modifications being applied, and the effective replication of the extracellular environment. Areas with opportunities for further development are addressed with an emphasis on the application of rationally designed polysaccharides and their importance in elucidating the molecular interactions necessary to properly design tissue engineering materials.
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10
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Trevisol TC, Fritz ARM, de Souza SMAGU, Bierhalz ACK, Valle JAB. Alginate and carboxymethyl cellulose in monolayer and bilayer films as wound dressings: Effect of the polymer ratio. J Appl Polym Sci 2018. [DOI: 10.1002/app.46941] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- T. C. Trevisol
- Department of Chemical and Food Engineering; Technological Center, Federal University of Santa Catarina; Florianópolis Brazil
| | - A. R. M. Fritz
- Department of Chemical and Food Engineering; Technological Center, Federal University of Santa Catarina; Florianópolis Brazil
| | - S. M. A. G. U. de Souza
- Department of Chemical and Food Engineering; Technological Center, Federal University of Santa Catarina; Florianópolis Brazil
| | - A. C. K. Bierhalz
- Blumenau Center; Federal University of Santa Catarina; Blumenau Brazil
| | - J. A. B. Valle
- Blumenau Center; Federal University of Santa Catarina; Blumenau Brazil
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11
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Wang C, Jiang W, Zuo W, Han G, Zhang Y. Effect of heat-transfer capability on micropore structure of freeze-drying alginate scaffold. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:944-949. [PMID: 30274131 DOI: 10.1016/j.msec.2018.08.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 06/15/2018] [Accepted: 08/29/2018] [Indexed: 12/20/2022]
Abstract
Biodegradable porous scaffold is widely used in the field of tissue engineering. Scaffolds were required to have proper microstructure with suitable size, gradient, shape and porosity to mimic the specific three-dimensional structure of extracellular matrix. Taken the simple technique of freeze-drying, the nucleation and growth of ice crystals were affected by thermal behavior of solution during freezing process, which could be controlled to tailor and predict the pore structure in scaffold. This paper aimed to reveal the effect of containers' heat-transfer capability on the thermal behaviors of solution, and then its influence to pore structure in scaffold. Four containers with different heat transfer capacity were adopted for cooling model to achieve different thermal characterizations within solution during cooling process. The vertical cross-section of scaffold was observed by scanning electron microscopy. The porosity and tensile properties of scaffold were measured to depict scaffold characteristics. Scaffolds fabricated by containers with λ/d = 20,000, 3000 and 450 W/m2·°C showed cellular pores with gradient. With the decrease of λ/d, pores in scaffold were enlarged, and the wall between neighboring pores also became thicker. Pillared pores were produced only in container with λ/d = 50 W/m2·°C, oriented along the vertical direction without gradient. This process demonstrated that by altering the container of cooling model, scaffold microstructure could be tailored.
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Affiliation(s)
- Conger Wang
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, PR China
| | - Wei Jiang
- College of Textiles and Fashion, Qingdao University, Qingdao 266071, PR China
| | - Wenqian Zuo
- College of Textiles and Fashion, Qingdao University, Qingdao 266071, PR China
| | - Guangting Han
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, PR China
| | - Yuanming Zhang
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, PR China.
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12
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Preparation and Identification of Optimal Synthesis Conditions for a Novel Alkaline Anion-Exchange Membrane. Polymers (Basel) 2018; 10:polym10080913. [PMID: 30960838 PMCID: PMC6403638 DOI: 10.3390/polym10080913] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/03/2018] [Accepted: 08/09/2018] [Indexed: 11/22/2022] Open
Abstract
The physicochemical and mechanical properties of new alkaline anion-exchange membranes (AAEMs) based on chitosan (CS) and poly(vinyl alcohol) (PVA) polymers doped with unsupported copper nanoparticles (NPs) and copper exchanged over different porous materials were investigated regarding ion-exchange capacity (IEC), OH− conductivity, water uptake (WU), water vapor permeability (WVP), and thermal and mechanical resistance. The influence of the type of filler included in different morphologies and filler loading has been explored using copper exchanged materials such as the layered porous titanosilicate AM-4, layered stannosilicate UZAR-S3, and zeolites Y, MOR, and BEA. Compared to commercially available anion-exchange membranes, the best performing membranes in terms of WU, IEC, OH− conductivity and WVP in this study were those containing 10 wt % of Cu-AM-4 and Cu-UZAR-S3, although 10 wt % Cu-MOR provided better mechanical strength at close values of WVP and anion conductivity. It was also observed that when Cu was exchanged in a porous silicate matrix, its oxidation state was lower than when embedded as unsupported metal NPs. In addition, the statistical analysis of variance determined that the electrochemical properties of the membranes were noticeably affected by both the type and filler loading, and influenced also by the copper oxidation state and content in the membrane, but their hydrophilic properties were more affected by the polymers. The largest significant effects were noticed on the water sorption and transport properties, which gives scope for the design of AAEMs for electrochemical and water treatment applications.
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13
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Bombaldi de Souza RF, Bombaldi de Souza FC, Moraes ÂM. Analysis of the performance of polysaccharide membranes in aqueous media as a tool to assist wound-dressing selection. J Appl Polym Sci 2017. [DOI: 10.1002/app.45386] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Renata Francielle Bombaldi de Souza
- Department of Engineering of Materials and of Bioprocesses; School of Chemical Engineering, University of Campinas; Avenida Albert Einstein 500 Campinas São Paulo - CEP 13083-852 Brazil
| | - Fernanda Carla Bombaldi de Souza
- Department of Engineering of Materials and of Bioprocesses; School of Chemical Engineering, University of Campinas; Avenida Albert Einstein 500 Campinas São Paulo - CEP 13083-852 Brazil
| | - Ângela Maria Moraes
- Department of Engineering of Materials and of Bioprocesses; School of Chemical Engineering, University of Campinas; Avenida Albert Einstein 500 Campinas São Paulo - CEP 13083-852 Brazil
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14
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Facchi DP, Lima AC, de Oliveira JH, Lazarin-Bidóia D, Nakamura CV, Canesin EA, Bonafé EG, Monteiro JP, Visentainer JV, Muniz EC, Martins AF. Polyelectrolyte complexes based on alginate/tanfloc: Optimization, characterization and medical application. Int J Biol Macromol 2017; 103:129-138. [PMID: 28501603 DOI: 10.1016/j.ijbiomac.2017.05.033] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 04/30/2017] [Accepted: 05/02/2017] [Indexed: 10/19/2022]
Abstract
Hydrogels based on alginate and tanfloc (a cationic biopolymer obtained from natural condensed tannins) were successfully prepared. Tanfloc (TN) presents high aqueous solubility at pHs lower than 10; it contains substituted amino sites and molar weight of ca. 600,000gmol-1. A factorial design (22) was used to optimize the yield of alginate/tanfloc polyelectrolyte complexes (PECs). Dialysis recovered the overplus of alginate (AG) no complexed with TN. These materials were characterized by thermal analyses (TGA/DTG and DSC), zeta potential, and FTIR, while SEM technique depicted a rough surface on AG/TN complex, containing non-homogeneous pores. Indeed, the AG and TN were tailored to elicit scaffold materials with outstanding cytocompatibility, mainly upon mouse preosteoblastic cells because of reconstruction of bone tissues (119% at 10days). The AG/TN complex also displayed antioxidant and bactericidal activities against Staphylococcus aureus (S. aureus). Besides, the pristine TN fostered bacteriostatic and bactericidal performances towards S. aureus and Escherichia coli. However, for our best knowledge, no studies were still carried out on TN and TN-based materials for medical purpose.
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Affiliation(s)
- Débora P Facchi
- Postgraduate Program in Environmental Engineering (PPGEA), Federal University of Technology - Paraná (UTFPR-AP), CEP 86812-460 Apucarana, PR, Brazil; Federal University of Technology - Paraná (UTFPR-AP), CEP 86812-460 Apucarana, PR, Brazil
| | - Ana C Lima
- Federal University of Technology - Paraná (UTFPR-AP), CEP 86812-460 Apucarana, PR, Brazil
| | - Jean H de Oliveira
- Department of Chemistry, State University of Maringá (UEM), Av. Colombo 5790, CEP 87020-900 Maringá, PR, Brazil
| | - Danielle Lazarin-Bidóia
- Applied Microbiology Laboratory to Natural and Synthetic Products and Technological Innovation Laboratory in Drugs and Cosmetics Development, Av. Colombo, 5790, 87020-900, Maringá, PR, Brazil
| | - Celso V Nakamura
- Applied Microbiology Laboratory to Natural and Synthetic Products and Technological Innovation Laboratory in Drugs and Cosmetics Development, Av. Colombo, 5790, 87020-900, Maringá, PR, Brazil
| | - Edmilson A Canesin
- Federal University of Technology - Paraná (UTFPR-AP), CEP 86812-460 Apucarana, PR, Brazil
| | - Elton G Bonafé
- Federal University of Technology - Paraná (UTFPR-AP), CEP 86812-460 Apucarana, PR, Brazil
| | - Johny P Monteiro
- Federal University of Technology - Paraná (UTFPR-AP), CEP 86812-460 Apucarana, PR, Brazil; Postgraduate Program in Materials Science & Engineering (PPGCEM), Federal University of Technology - Paraná (UTFPR-LD), CEP 86036-370 Londrina, PR, Brazil
| | - Jesuí V Visentainer
- Department of Chemistry, State University of Maringá (UEM), Av. Colombo 5790, CEP 87020-900 Maringá, PR, Brazil
| | - Edvani C Muniz
- Postgraduate Program in Materials Science & Engineering (PPGCEM), Federal University of Technology - Paraná (UTFPR-LD), CEP 86036-370 Londrina, PR, Brazil; Polymers and Composite Materials Group (GMPC), Department of Chemistry, State University of Maringá (UEM), Av. Colombo 5790, CEP 87020-900 Maringá, PR, Brazil
| | - Alessandro F Martins
- Postgraduate Program in Environmental Engineering (PPGEA), Federal University of Technology - Paraná (UTFPR-AP), CEP 86812-460 Apucarana, PR, Brazil; Federal University of Technology - Paraná (UTFPR-AP), CEP 86812-460 Apucarana, PR, Brazil; Postgraduate Program in Materials Science & Engineering (PPGCEM), Federal University of Technology - Paraná (UTFPR-LD), CEP 86036-370 Londrina, PR, Brazil.
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