1
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Thite AG, Kale RD, Panda PK. Development of highly bacterial filtration efficient and antibacterial cellulose acetate/gum rosin composite nanofibers for facemask application. Int J Biol Macromol 2024; 270:132221. [PMID: 38729499 DOI: 10.1016/j.ijbiomac.2024.132221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/30/2024] [Accepted: 05/07/2024] [Indexed: 05/12/2024]
Abstract
Cellulose acetate (CA) is a non-toxic, renewable, and biodegradable polymeric material that can be effectively electrospuned into bacterial filtration efficient nanofiber membrane for face mask application. However, its fragile and non-antibacterial nature influenced its scalability. In this context, natural antibacterial gum rosin (GR) additive can be explored. Therefore, the present study aimed to produce a CA/GR composite nanofibers membrane for the finest bacterial filtration, excellent antibacterial moiety, and improved tensile properties for facemask application. Hence, in this work, we have studied the effect of GR concentrations (0-15 g) on the needleless electrospinning behavior and fibers' morphology through rheology, electrical conductivity, and SEM analysis. These analyses revealed that GR significantly affects the fibers' spinning behavior, morphology, and diameter of the produced fibers. Later, ATR-FTIR spectroscopy mapped the functional changes in the produced nanofibers that affirmed the integration of GR with CA polymer. This modification resulted in a 3-fold rise in tensile strength and an 11-fold decline in elongation% in 15 g CA/GR composite nanofibers membrane than the control sample. Furthermore, it has shown 98.79 ± 0.10% bacterial filtration efficiency and ∼ 93 % reduction in Staphylococcus Aureus and Klebsiella Pneumoniae bacterial growth, elucidating a high-efficiency level for potential facemask application.
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Affiliation(s)
- Amol G Thite
- Department of Fibres and Textile Processing Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400 019, India; The Bombay Textile Research Association, LBS Marg, Ghatkopar (W), Mumbai 400 086, India
| | - Ravindra D Kale
- Department of Fibres and Textile Processing Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400 019, India.
| | - Prasanta K Panda
- The Bombay Textile Research Association, LBS Marg, Ghatkopar (W), Mumbai 400 086, India.
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2
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Serpelloni S, Williams ME, Caserta S, Sharma S, Rahimi M, Taraballi F. Electrospun Chitosan-Based Nanofibrous Coating for the Local and Sustained Release of Vancomycin. ACS OMEGA 2024; 9:11701-11717. [PMID: 38496925 PMCID: PMC10938330 DOI: 10.1021/acsomega.3c08113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/07/2024] [Accepted: 02/13/2024] [Indexed: 03/19/2024]
Abstract
As the population ages, the number of vascular surgery procedures performed increases. Older adults often have multiple comorbidities, such as diabetes and hypertension, that increase the risk of complications from vascular surgery including vascular graft infection (VGI). VGI is a serious complication with significant morbidity, mortality, and healthcare costs. Here, we aimed to develop a nanofibrous chitosan-based coating for vascular grafts loaded with different concentrations of the vancomycin antibiotic vancomycin (VAN). Blending chitosan with poly(vinyl alcohol) or poly(ethylene oxide) copolymers improved solubility and ease of spinning. Thermal gravimetric analysis and Fourier transform infrared spectroscopy confirmed the presence of VAN in the nanofibrous membranes. Kinetics of VAN release from the nanofibrous mats were evaluated using high-performance liquid chromatography, showing a burst followed by sustained release over 24 h. To achieve longer sustained release, a poly(lactic-co-glycolic acid) coating was applied, resulting in extended release of up to 7 days. Biocompatibility assessment using human umbilical vein endothelial cells demonstrated successful attachment and viability of the nanofiber patches. Our study provides insights into the development of a drug delivery system for vascular grafts aimed at preventing infection during implantation, highlighting the potential of electrospinning as a promising technique in the field of vascular surgery.
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Affiliation(s)
- Stefano Serpelloni
- Center
for Musculoskeletal Regeneration, Houston
Methodist Academic Institute, Houston, Texas 77030-2707, United States
- Department
of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milan 20133, Italy
- Department
of Orthopedics and Sport Medicine, Houston
Methodist Hospital, Houston, Texas 77030-2707, United States
| | - Michael Ellis Williams
- Center
for Musculoskeletal Regeneration, Houston
Methodist Academic Institute, Houston, Texas 77030-2707, United States
- Reproductive
Biology and Gynaecological Oncology Group, Swansea University Medical School, Singleton Park, Swansea SA2 8QA, U.K.
| | - Sergio Caserta
- Department
of Chemical Materials and Industrial Production Engineering, University of Naples Federico II, Naples 80138, Italy
| | - Shashank Sharma
- Department
of Cardiovascular Surgery, Houston Methodist
Hospital, Houston, Texas 77030-2707, United States
| | - Maham Rahimi
- Department
of Cardiovascular Surgery, Houston Methodist
Hospital, Houston, Texas 77030-2707, United States
| | - Francesca Taraballi
- Center
for Musculoskeletal Regeneration, Houston
Methodist Academic Institute, Houston, Texas 77030-2707, United States
- Department
of Orthopedics and Sport Medicine, Houston
Methodist Hospital, Houston, Texas 77030-2707, United States
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3
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Türkoğlu GC, Khomarloo N, Mohsenzadeh E, Gospodinova DN, Neznakomova M, Salaün F. PVA-Based Electrospun Materials-A Promising Route to Designing Nanofiber Mats with Desired Morphological Shape-A Review. Int J Mol Sci 2024; 25:1668. [PMID: 38338946 PMCID: PMC10855838 DOI: 10.3390/ijms25031668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
Poly(vinyl alcohol) is one of the most attractive polymers with a wide range of uses because of its water solubility, biocompatibility, low toxicity, good mechanical properties, and relatively low cost. This review article focuses on recent advances in poly(vinyl alcohol) electrospinning and summarizes parameters of the process (voltage, distance, flow rate, and collector), solution (molecular weight and concentration), and ambient (humidity and temperature) in order to comprehend the influence on the structural, mechanical, and chemical properties of poly(vinyl alcohol)-based electrospun matrices. The importance of poly(vinyl alcohol) electrospinning in biomedical applications is emphasized by exploring a literature review on biomedical applications including wound dressings, drug delivery, tissue engineering, and biosensors. The study also highlights a new promising area of particles formation through the electrospraying of poly(vinyl alcohol). The limitations and advantages of working with different poly(vinyl alcohol) matrices are reviewed, and some recommendations for the future are made to advance this field of study.
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Affiliation(s)
- Gizem Ceylan Türkoğlu
- Department of Textile Engineering, Dokuz Eylul University, İzmir 35397, Turkey;
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, F-59000 Lille, France; (N.K.); (E.M.)
| | - Niloufar Khomarloo
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, F-59000 Lille, France; (N.K.); (E.M.)
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, Junia, F-59000 Lille, France
| | - Elham Mohsenzadeh
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, F-59000 Lille, France; (N.K.); (E.M.)
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, Junia, F-59000 Lille, France
| | - Dilyana Nikolaeva Gospodinova
- Faculty of Electrical Engineering, Department of Electrical Apparatus, Technical University of Sofia, 1156 Sofia, Bulgaria;
| | - Margarita Neznakomova
- Faculty of Industrial Technology, Department of Material Science and Technology of Materials, Technical University of Sofia, 1000 Sofia, Bulgaria;
| | - Fabien Salaün
- Univ. Lille, ENSAIT, ULR 2461-GEMTEX-Génie et Matériaux Textiles, F-59000 Lille, France; (N.K.); (E.M.)
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Woodring RN, Gurysh EG, Bachelder EM, Ainslie KM. Drug Delivery Systems for Localized Cancer Combination Therapy. ACS APPLIED BIO MATERIALS 2023; 6:934-950. [PMID: 36791273 PMCID: PMC10373430 DOI: 10.1021/acsabm.2c00973] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
With over 2 million cancer cases and over 600,000 cancer-associated deaths predicted in the U.S. for 2022, this life-debilitating disease continuously impacts the lives of people across the nation every day. Therapeutic treatment options for cancer have historically involved chemotherapies to eradicate tumors with cytotoxic mechanisms which can negatively affect the efficacy versus toxicity ratio of treatment. With a need for more directed and therapeutically active options, targeted small-molecule inhibitors and immunotherapies have since emerged to mitigate treatment-associated toxicities. However, aggressive tumors can employ a wide range of defense mechanisms to evade monotherapy treatment altogether, resulting in the recurrence of therapeutically resistant tumors. Therefore, many clinical routines have included combination therapy in which anticancer agents are combined to provide a synergistic attack on tumors. Even with this approach, maximizing the efficacy of cancer treatment is contingent upon the dose of drug that reaches the site of the tumor, so often therapy is administered at the site of a tumor via localized delivery platforms. Commonly used platforms for localized drug delivery include polymeric wafers, nanofibrous scaffolds, and hydrogels where drug combinations can be loaded and delivered synchronously. Attaining synergistic activity from these localized systems is dependent on proper material selection and fabrication methods. Herein, we describe these important considerations for enhancing the efficacy of cancer combination therapy through biodegradable, localized delivery systems.
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Affiliation(s)
- Ryan N. Woodring
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Elizabeth G. Gurysh
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Eric M. Bachelder
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Kristy M. Ainslie
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC 27599, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Miceli GC, Palumbo FS, Bonomo FP, Zingales M, Licciardi M. Polybutylene Succinate Processing and Evaluation as a Micro Fibrous Graft for Tissue Engineering Applications. Polymers (Basel) 2022; 14:4486. [PMID: 36365480 PMCID: PMC9655432 DOI: 10.3390/polym14214486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 08/27/2023] Open
Abstract
A microfibrous tubular scaffold has been designed and fabricated by electrospinning using poly (1,4-butylene succinate) as biocompatible and biodegradable material. The scaffold morphology was optimized as a small diameter and micro-porous conduit, able to foster cell integration, adhesion, and growth while avoiding cell infiltration through the graft's wall. Scaffold morphology and mechanical properties were explored and compared to those of native conduits. Scaffolds were then seeded with adult normal human dermal fibroblasts to evaluate cytocompatibility in vitro. Haemolytic effect was evaluated upon incubation with diluted whole blood. The scaffold showed no delamination, and mechanical properties were in the physiological range for tubular conduits: elastic modulus (17.5 ± 1.6 MPa), ultimate tensile stress (3.95 ± 0.17 MPa), strain to failure (57 ± 4.5%) and suture retention force (2.65 ± 0.32 N). The shown degradation profile allows the graft to provide initial mechanical support and functionality while being colonized and then replaced by the host cells. This combination of features might represent a step toward future research on PBS as a biomaterial to produce scaffolds that provide structure and function over time and support host cell remodelling.
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Affiliation(s)
- Giovanni Carlo Miceli
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90123 Palermo, Italy
| | - Fabio Salvatore Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90123 Palermo, Italy
| | - Francesco Paolo Bonomo
- Advanced Technology Network Center (ATeN Center), Università degli Studi di Palermo, 90128 Palermo, Italy
| | - Massimiliano Zingales
- Dipartimento di Ingegneria, Viale delle Scienze, Università degli Studi di Palermo, ed.8, 90128 Palermo, Italy
| | - Mariano Licciardi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90123 Palermo, Italy
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Morais MS, Bonfim DPF, Aguiar ML, Oliveira WP. Electrospun Poly (Vinyl Alcohol) Nanofibrous Mat Loaded with Green Propolis Extract, Chitosan and Nystatin as an Innovative Wound Dressing Material. J Pharm Innov 2022; 18:1-15. [PMID: 36061220 PMCID: PMC9427432 DOI: 10.1007/s12247-022-09681-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2022] [Indexed: 10/29/2022]
Abstract
Purposes The objective of this work was to produce and characterise biodegradable poly (vinyl alcohol) (PVA) nanofibre loaded with green propolis extract (GPE), chitosan (CS) and nystatin (NYS) alone and in mixtures as a potential wound dressing material. Methods The GPE, NYS and CS1% were loaded in electrospinning compositions based on PVA 7%, 8% and 12% solubilised in milli-Q water or a mixture of water and glacial acetic acid. The electrospinning compositions without actives (blank) and those loaded with actives were characterised by determining the pH, electrical conductivity and rheological properties. An image analysis procedure applied to photomicrographs obtained by scanning electronic microscopy (SEM) allowed the determination of the nanofibres' diameter distribution and average surface porosity. The disintegration time and swelling ratio of the nanofibre mats were also determined. Results The physicochemical parameters of the electrospinning compositions (pH, electrical conductivity and rheology) and the incorporated active ingredients (GPE, CS and NYS) affected the electrospun nanofibre mats properties. The electrospun nanofibres' mean diameters and surface porosity ranged from 151.5 to 684.5 nm and from 0.29 ± 0.04 to 0.50 ± 0.05. The PVA/CS electrospun nanofibres fibres exhibited the smallest diameters, high surface porosity, water absorption capacity and disintegration time. The characteristics of the PVA/CS nanofibres mat associated with the biodegradability of the polymers make them a novel material with the potential to be applied as wound and burn dressings.
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Affiliation(s)
- Maria S. Morais
- Laboratory of Pharmaceutical Processes, LAPROFAR, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903 Brazil
| | - Daniela P. F. Bonfim
- Department of Chemical Engineering, University Federal of São Carlos, Rod. Washington Luiz, km 235, São Carlos, SP Brazil
| | - Mônica L. Aguiar
- Department of Chemical Engineering, University Federal of São Carlos, Rod. Washington Luiz, km 235, São Carlos, SP Brazil
| | - Wanderley P. Oliveira
- Laboratory of Pharmaceutical Processes, LAPROFAR, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903 Brazil
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Bao Y, Huang X, Xu D, Xu J, Jiang L, Lu ZY, Cui S. Bound water governs the single-chain property of Poly(vinyl alcohol) in aqueous environments. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124996] [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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8
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Dual Properties of Polyvinyl Alcohol-Based Magnetorheological Plastomer with Different Ratio of DMSO/Water. SENSORS 2021; 21:s21227758. [PMID: 34833835 PMCID: PMC8623238 DOI: 10.3390/s21227758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/12/2021] [Accepted: 11/18/2021] [Indexed: 11/17/2022]
Abstract
Polyvinyl alcohol (PVA)-based magnetorheological plastomer (MRP) possesses excellent magnetically dependent mechanical properties such as the magnetorheological effect (MR effect) when exposed to an external magnetic field. PVA-based MRP also shows a shear stiffening (ST) effect, which is very beneficial in fabricating pressure sensor. Thus, it can automatically respond to external stimuli such as shear force without the magnetic field. The dual properties of PVA-based MRP mainly on the ST and MR effect are rarely reported. Therefore, this work empirically investigates the dual properties of this smart material under the influence of different solvent compositions (20:80, 40:60, 60:40, and 80:20) by varying the ratios of binary solvent mixture (dimethyl sulfoxide (DMSO) to water). Upon applying a shear stress with excitation frequencies from 0.01 to 10 Hz, the storage modulus (G′) for PVA-based MRP with DMSO to water ratio of 20:40 increases from 6.62 × 10−5 to 0.035 MPa. This result demonstrates an excellent ST effect with the relative shear stiffening effect (RSTE) up to 52,827%. In addition, both the ST and MR effect show a downward trend with increasing DMSO content to water. Notably, the physical state of hydrogel MRP could be changed with different solvent ratios either in the liquid-like or solid-like state. On the other hand, a transient stepwise experiment showed that the solvent’s composition had a positive effect on the arrangement of CIPs within the matrix as a function of the external magnetic field. Therefore, the solvent ratio (DMSO/water) can influence both ST and MR effects of hydrogel MRP, which need to be emphasized in the fabrication of hydrogel MRP for appropriate applications primarily with soft sensors and actuators for dynamic motion control.
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Estedlali Z, Aroujalian A, Salimi P. Investigating performance of fabricated electrospun polyethersulfone/Zeolite Y composite nanofibers in concentrate lemon juice by the osmotic membrane distillation process. J FOOD PROCESS ENG 2021. [DOI: 10.1111/jfpe.13829] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Zahra Estedlali
- Department of Chemical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Abdolreza Aroujalian
- Department of Chemical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Parisa Salimi
- Department of Chemical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
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Soliman TS, Elkalashy SI, Elrasasi TY, El-Mansy MK. The Effect of TMEDA on the Structural, Optical and Electrochemical Properties of CuI Embedded in Polyvinyl alcohol Nanocomposite Films. POLYMER SCIENCE SERIES A 2020. [DOI: 10.1134/s0965545x2003013x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Organic nanocomposite Band-Aid for chronic wound healing: a novel honey-based nanofibrous scaffold. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-019-01247-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hapipi NM, Mazlan SA, Ubaidillah U, Abdul Aziz SA, Ahmad Khairi MH, Nordin NA, Nazmi N. Solvent Dependence of the Rheological Properties in Hydrogel Magnetorheological Plastomer. Int J Mol Sci 2020; 21:E1793. [PMID: 32151055 PMCID: PMC7084487 DOI: 10.3390/ijms21051793] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 11/16/2022] Open
Abstract
Chemically crosslinked hydrogel magnetorheological (MR) plastomer (MRP) embedded with carbonyl iron particles (CIPs) exhibits excellent magnetic performance (MR effect) in the presence of external stimuli especially magnetic field. However, oxidation and desiccation in hydrogel MRP due to a large amount of water content as a dispersing phase would limit its usage for long-term applications, especially in industrial engineering. In this study, different solvents such as dimethyl sulfoxide (DMSO) are also used to prepare polyvinyl alcohol (PVA) hydrogel MRP. Thus, to understand the dynamic viscoelastic properties of hydrogel MRP, three different samples with different solvents: water, DMSO, and their binary mixtures (DMSO/water) were prepared and systematically carried out using the oscillatory shear. The outcomes demonstrate that the PVA hydrogel MRP prepared from precursor gel with water shows the highest MR effect of 15,544% among the PVA hydrogel MRPs. However, the samples exhibit less stability and tend to oxidise after a month. Meanwhile, the samples with binary mixtures (DMSO/water) show an acceptable MR effect of 11,024% with good stability and no CIPs oxidation. Otherwise, the sample with DMSO has the lowest MR effect of 7049% and less stable compared to the binary solvent samples. This confirms that the utilisation of DMSO as a new solvent affects the rheological properties and stability of the samples.
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Affiliation(s)
- Norhiwani Mohd Hapipi
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia; (N.M.H.); (S.A.A.A.); (M.H.A.K.); (N.A.N.); (N.N.)
| | - Saiful Amri Mazlan
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia; (N.M.H.); (S.A.A.A.); (M.H.A.K.); (N.A.N.); (N.N.)
| | - U. Ubaidillah
- Mechanical Engineering Department, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami 36A Kentingan Jebres, Surakarta 57126, Indonesia
- National Center for Sustainable Transportation Technology (NCSTT), Bandung 40132, Indonesia
| | - Siti Aishah Abdul Aziz
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia; (N.M.H.); (S.A.A.A.); (M.H.A.K.); (N.A.N.); (N.N.)
| | - Muntaz Hana Ahmad Khairi
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia; (N.M.H.); (S.A.A.A.); (M.H.A.K.); (N.A.N.); (N.N.)
| | - Nur Azmah Nordin
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia; (N.M.H.); (S.A.A.A.); (M.H.A.K.); (N.A.N.); (N.N.)
| | - Nurhazimah Nazmi
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia; (N.M.H.); (S.A.A.A.); (M.H.A.K.); (N.A.N.); (N.N.)
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Gaikwad A, Hlushko H, Karimineghlani P, Selin V, Sukhishvili SA. Hydrogen-Bonded, Mechanically Strong Nanofibers with Tunable Antioxidant Activity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:11026-11035. [PMID: 32048504 DOI: 10.1021/acsami.9b23212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report on mechanically strong, water-insoluble hydrogen-bonded nanofiber mats composed of a hydrophilic polymer and a natural polyphenol that exhibit prolonged antioxidant activity. The high performance of fibrous mats resulted from the formation of a network of hydrogen bonds between a low-molecular-weight polyphenol (tannic acid, TA) and a water-soluble polymer (polyvinylpyrrolidone, PVP) and could be precisely controlled by the TA-to-PVP ratio. Dramatic enhancement (5- to 10-fold) in tensile strength, toughness, and Young's moduli of the PVP/TA fiber mats (as compared to those of pristine PVP fibers) was achieved at the maximum density of hydrogen bonds, which occurred at ∼0.2-0.4 molar fractions of TA. The formation of hydrogen bonds was confirmed by an increase in the glass-transition temperature of the polymer after binding with TA. When exposed to water, the fibers exhibited composition- and pH-dependent stabilities, with the TA-enriched fibers fully preserving their integrity in acidic and neutral media. Importantly, the fiber mats exhibited strong antioxidant activity with dual (burst and prolonged) activity profiles, which could be controlled via fiber composition, a feature useful for controlling radical-scavenging rates in environmental and biological applications.
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Affiliation(s)
- Adwait Gaikwad
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Hanna Hlushko
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Parvin Karimineghlani
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Victor Selin
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Svetlana A Sukhishvili
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
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Russo F, Ursino C, Avruscio E, Desiderio G, Perrone A, Santoro S, Galiano F, Figoli A. Innovative Poly (Vinylidene Fluoride) (PVDF) Electrospun Nanofiber Membrane Preparation Using DMSO as a Low Toxicity Solvent. MEMBRANES 2020; 10:membranes10030036. [PMID: 32110883 PMCID: PMC7142737 DOI: 10.3390/membranes10030036] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/21/2020] [Accepted: 02/22/2020] [Indexed: 01/08/2023]
Abstract
Electrospinning is an emerging technique for the preparation of electrospun fiber membranes (ENMs), and a very promising one on the basis of the high-yield and the scalability of the process according to a process intensification strategy. Most of the research reported in the literature has been focused on the preparation of poly (vinylidene fluoride) (PVDF) ENMs by using N,N- dimethylformamide (DMF) as a solvent, which is considered a mutagenic and cancerogenic substance. Hence, the possibility of using alternative solvents represents an interesting approach to investigate. In this work, we explored the use of dimethyl sulfoxide (DMSO) as a low toxicity solvent in a mixture with acetone for the preparation of PVDF-ENMs. As a first step, a solubility study of the polymer, PVDF 6012 Solef®, in several DMSO/acetone mixtures was carried out, and then, different operating conditions (e.g., applied voltage and needle to collector plate distance) for the successful electrospinning of the ENMs were evaluated. The study provided evidence of the crucial role of solution conductivity in the electrospinning phase and the thermal post-treatment. The prepared ENMs were characterized by evaluating the morphology (by SEM), pore-size, porosity, surface properties, and performance in terms of water permeability. The obtained results showed the possibility of producing ENMs in a more sustainable way, with a pore size in the range of 0.2-0.8 µm, high porosity (above 80%), and water flux in the range of 11.000-38.000 L/m2·h·bar.
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Affiliation(s)
- Francesca Russo
- Institute on Membrane Technology (ITM-CNR), Via Pietro Bucci, Cubo 17/C, 87036 Rende (CS), Italy; (F.R.); (C.U.); (E.A.); (F.G.)
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technology, University of Calabria, via P. Bucci 12/C, 87036 Rende (CS), Italy
| | - Claudia Ursino
- Institute on Membrane Technology (ITM-CNR), Via Pietro Bucci, Cubo 17/C, 87036 Rende (CS), Italy; (F.R.); (C.U.); (E.A.); (F.G.)
| | - Elisa Avruscio
- Institute on Membrane Technology (ITM-CNR), Via Pietro Bucci, Cubo 17/C, 87036 Rende (CS), Italy; (F.R.); (C.U.); (E.A.); (F.G.)
| | - Giovanni Desiderio
- CNR/Nanotec c/o Dipartimento di Fisica, Università della Calabria, 87036 Rende (CS), Italy;
| | - Andrea Perrone
- DeltaE srl, C/o Universitá della Calabria, Via Pietro Bucci cubo 31D, Arcavacata di Rende, 87036 Rende (CS), Italy
| | - Sergio Santoro
- Department of Environmental Engineering (DIAm), Università della Calabria, Via Pietro Bucci, Cubo 44/A, 87036 Rende (CS), Italy;
| | - Francesco Galiano
- Institute on Membrane Technology (ITM-CNR), Via Pietro Bucci, Cubo 17/C, 87036 Rende (CS), Italy; (F.R.); (C.U.); (E.A.); (F.G.)
| | - Alberto Figoli
- Institute on Membrane Technology (ITM-CNR), Via Pietro Bucci, Cubo 17/C, 87036 Rende (CS), Italy; (F.R.); (C.U.); (E.A.); (F.G.)
- Correspondence: ; Tel.: +39-0984-49-2027
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15
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3D-Printed Solid Dispersion Drug Products. Pharmaceutics 2019; 11:pharmaceutics11120672. [PMID: 31835682 PMCID: PMC6956082 DOI: 10.3390/pharmaceutics11120672] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/25/2019] [Accepted: 12/05/2019] [Indexed: 12/27/2022] Open
Abstract
With the well-known advantages of additive manufacturing methods such as three-dimensional (3D) printing in drug delivery, it is disappointing that only one product has been successful in achieving regulatory approval in the past few years. Further research and development is required in this area to introduce more 3D printed products into the market. Our study investigates the potential of fixed dose combination solid dispersion drug products generated via 3D printing. Two model drugs-fluorescein sodium (FS) and 5-aminosalicyclic acid (5-ASA)-were impregnated onto a polyvinyl alcohol (PVA) filament, and the influence of solvent choice in optimal drug loading as well as other influences such as the physicochemical and mechanical properties of the resultant filaments were investigated prior to development of the resultant drug products. Key outcomes of this work included the improvement of filament drug loading by one- to threefold due to solvent choice on the basis of its polarity and the generation of a 3D-printed product confirmed to be a solid dispersion fixed dose combination with the two model drugs exhibiting favourable in vitro dissolution characteristics.
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16
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Abid S, Hussain T, Nazir A, Zahir A, Ramakrishna S, Hameed M, Khenoussi N. Enhanced antibacterial activity of PEO-chitosan nanofibers with potential application in burn infection management. Int J Biol Macromol 2019; 135:1222-1236. [DOI: 10.1016/j.ijbiomac.2019.06.022] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/24/2019] [Accepted: 06/03/2019] [Indexed: 12/21/2022]
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18
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Subramanian B, Agarwal T, Ghorai SK, Mandal P, Chattopadhyay S, Basak P, Maiti TK, Guha SK. Biocompatible polyvinyl alcohol and RISUG ® blend polymeric films with spermicidal potential. ACTA ACUST UNITED AC 2019; 14:035017. [PMID: 30726778 DOI: 10.1088/1748-605x/ab04e1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Majority of the commercially available vaginal contraceptives encompasses cervicovaginal membrane disrupting detergent molecules as pharmacologically active ingredients. Development of a tissue-compatible vaginal contraceptive agent is necessary to circumvent the existing demand for female contraception in the reproductive healthcare sector. With this objective, the present study delineates the use of RISUG® based non-hormonal female contraceptive films. RISUG® was blended with polyvinyl alcohol (PVOH) to formulate biodegradable intra-vaginal contraceptive films. The formulated films were characterized for their thermal, physiochemical and biological features. The results showed that both RISUG® and PVOH were miscible and interacted at the intermolecular level. Variations in the concentration of RISUG® resulted in the changes in physicochemical, thermal and rheological characteristics of the formulated blends. In vitro toxicological assay of the polymeric formulations did not show any significant toxicity. However, the blend films retained spermicidal potential of RISUG®. Furthermore, in vivo toxicological evaluation of the polymeric blend in the rat model revealed about their biocompatibility with no significant organ toxicity, hematological and biochemical alterations. These results together confirm the potential applicability of the PVOH:RISUG® blend films as a vaginal contraceptive.
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Affiliation(s)
- Bhuvaneshwaran Subramanian
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur 721302, India. School of Bio-Science and Engineering, Jadavpur University, Kolkata, West Bengal 700098, India
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19
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Rezabeigi E, Demarquette NR. Ultraporous Membranes Electrospun from Nonsolvent-Induced Phase-Separated Ternary Systems. Macromol Rapid Commun 2019; 40:e1800880. [PMID: 30747462 DOI: 10.1002/marc.201800880] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/06/2019] [Indexed: 12/16/2022]
Abstract
Electrospinning of nonsolvent-induced phase-separated ternary (NIPST) systems has gained a lot of interest due to its potential to produce (nano)fibers, which are superficially and internally porous with nanoscale surface roughness. Membranes produced from such systems are expected to have a high specific surface area (SSA; e.g., more than 50 m2 g-1 ), an essential requirement for many of their applications. In spite of their advantages and potential, there are major issues regarding the electrospinning of NIPST systems that are not systematically addressed in the literature. In this paper, the most recent developments are reported and the potential and challenges associated with the electrospinning of NIPST systems are discussed. Furthermore, the essential steps to improve and optimize the electrospinning process of these systems are concisely discussed. By developing a modified time-dependent rheological model, a time range can be defined for NIPST systems as "electrospinnability window," in which fiber functionality and characteristics can be tailored through aging of the systems prior to electrospinning. Some potential post-treatment processes are also proposed based on the results of recent studies to stabilize as-electrospun membranes without damaging their highly porous fibers, which can guarantee their in-service mechanical and morphological stability.
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Affiliation(s)
- Ehsan Rezabeigi
- Department of Mining and Materials Engineering, McGill University, Wong Building, 3610 Rue University, Montréal, Québec, H3A 0C5, Canada
| | - Nicole R Demarquette
- Département de Génie Mécanique, École de Technologie Supérieure, 1100 rue Notre-Dame Ouest, Montréal, Québec, H3C 1K3, Canada
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20
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Wang J, Wang N, Liu B, Bai J, Gong P, Ru G, Feng J. Preferential adsorption of the additive is not a prerequisite for cononsolvency in water-rich mixtures. Phys Chem Chem Phys 2017; 19:30097-30106. [DOI: 10.1039/c7cp04384h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
NMR studies reveal the distinct molecular interactions accounting for cononsolvency.
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Affiliation(s)
- Jian Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Science
- Wuhan 430071
- P. R. China
| | - Nian Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Science
- Wuhan 430071
- P. R. China
| | - Biaolan Liu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Science
- Wuhan 430071
- P. R. China
| | - Jia Bai
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Science
- Wuhan 430071
- P. R. China
| | - Pei Gong
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Science
- Wuhan 430071
- P. R. China
| | - Geying Ru
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Science
- Wuhan 430071
- P. R. China
| | - Jiwen Feng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Science
- Wuhan 430071
- P. R. China
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