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Ciftbudak S, Orakdogen N. Anionic starch-based hybrid cryogel-embedded ZnO nanoparticles: tuning the elasticity and pH-functionality of biocomposites with dicarboxylic acid units. SOFT MATTER 2024; 20:4434-4455. [PMID: 38779995 DOI: 10.1039/d4sm00136b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Weakly anionic semi-interpenetrating polymer network (semi-IPN) biocomposites based on starch (ST)-incorporated poly(acrylamide-co-itaconic acid)/ZnO (ST-PAI/ZnO) were synthesized by a simple one-pot method via free radical aqueous polymerization. Hybrid biocomposites exhibited lower equilibrium swelling compared with neat copolymer gel. For both hydrogels and cryogels, swelling followed a decreasing order as copolymer PAI > starch-free PAI/ZnO > ST-PAI/ZnO gels. With the addition of 9% ST and ZnO, the swelling ratio of gels decreased from 898 to 68.3, resulting in a significant increase in elastic modulus. Compared with a fixed amount of ST, biocomposite cryogels exhibited significantly higher modulus than hydrogels. With the addition of 9% ST, the elastic modulus of cryogels reached 22.2 kPa while it was 2.7 kPa for the hydrogels. An equation expressing the effective cross-linking density of semi-IPNs presented by a cubic polynomial as a function of starch was obtained. As pH increased with the presence of dicarboxylic acid units, a gradual increase in swelling occurred at two different pH values. A gradually reproducible swelling change of semi-IPNs was depicted with pH ranging from 2.1 to 11.2. Biocomposite cryogels showed rapid swelling in a buffer solution of pH 11.2 and rapid shrinking in pH 2.1. Salt-induced swelling testing showed that the ability to reduce the degree of swelling and solubility of starch was Br- > Cl- > NO3- > SO42- for anions consistent with the Hofmeister series. Adsorption efficiency for the removal of methyl violet (MV) dye was analyzed using Langmuir, Freundlich, Dubinin-Radushkevich and Temkin isotherm models. The results confirmed that the Langmuir isotherm and pseudo-second-order model are suitable for describing MV adsorption on semi-IPN biocomposites. The synthesized biocomposites with good swelling/deswelling kinetics in different pH-buffer solutions, high saline absorbency, desirable adsorption efficiency, and acceptable pH-dependent swelling reversibility can be considered as smart hybrid materials for the adsorption of the dye in water purification tasks.
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Affiliation(s)
- Sena Ciftbudak
- Graduate School of Science Engineering and Technology, Department of Chemistry, Istanbul Technical University, Maslak, Istanbul, 34469, Turkey
| | - Nermin Orakdogen
- Department of Chemistry, Soft Materials Research Laboratory, Istanbul Technical University, Maslak, Istanbul, 34469, Turkey.
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2
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Pino P, Vigani B, Valentino C, Ianev D, Ruggeri M, Boselli C, Cornaglia AI, Grisoli P, Onida B, Bosco F, Sandri G, Rossi S. Sustainable whey proteins-nanostructured zinc oxide-based films for the treatment of chronic wounds: New insights from biopharmaceutical studies. Int J Biol Macromol 2024; 263:130655. [PMID: 38453117 DOI: 10.1016/j.ijbiomac.2024.130655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 01/22/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
Chronic wounds represent silent epidemic affecting a large portion of the world population, especially the elders; in this context, the development of advanced bioactive dressings is imperative to accelerate wound healing process, while contrasting or preventing infections. The aim of the present work was to provide a deep characterization of the functional and biopharmaceutical properties of a sustainable thin and flexible films, composed of whey proteins alone (WPI) and added with nanostructured zinc oxide (WPZ) and intended for the management of chronic wounds. The potential of whey proteins-based films as wound dressings has been confirmed by their wettability, hydration properties, elastic behavior upon hydration, biodegradation propensity and, when added with nanostructured zinc oxide, antibacterial efficacy against both Gram-positive and Gram-negative pathogens, i.e. Staphylococcus aureus and Escherichia coli. In-vitro experiments, performed on normal human dermal fibroblasts, confirmed film cytocompatibility, also revealing the possible role of Zn2+ ions in promoting fibroblast proliferation. Finally, in-vivo studies on rat model confirmed film suitability to act as wound dressing, since able to ensure a regular healing process while providing effective protection from infections. In particular, both films WPI and WPZ are responsible for the formation in the wound bed of a continuous collagen layer similar to that of healthy skin.
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Affiliation(s)
- Paolo Pino
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Barbara Vigani
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Caterina Valentino
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Daiana Ianev
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Marco Ruggeri
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Cinzia Boselli
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Antonia Icaro Cornaglia
- Department of Public Health Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy
| | - Pietro Grisoli
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Barbara Onida
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy.
| | - Francesca Bosco
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy.
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Dadashi P, Babaei A, Abdolrasouli MH. Investigating the hydrolytic degradation of
PLA
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PCL
/
ZnO
nanocomposites by using viscoelastic models. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Parsa Dadashi
- School of Chemical Engineering, College of Engineering, University of Tehran Tehran Iran
- Faculty of Engineering, Department of Polymer Engineering Golestan University Gorgan Iran
| | - Amir Babaei
- Faculty of Engineering, Department of Polymer Engineering Golestan University Gorgan Iran
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4
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Zabihi E, Arab-Bafrani Z, Hoseini SM, Mousavi E, Babaei A, Khalili M, Hashemi MM, Javid N. Fabrication of nano-decorated ZnO-fibrillar chitosan exhibiting a superior performance as a promising replacement for conventional ZnO. Carbohydr Polym 2021; 274:118639. [PMID: 34702461 DOI: 10.1016/j.carbpol.2021.118639] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/09/2021] [Accepted: 09/01/2021] [Indexed: 12/27/2022]
Abstract
In this research, bioactive nano-hybrids based on the nano-fibrillar chitosan-ZnO (NF-CS-ZnO) were synthesized to diminish the toxicity of ZnO-NPs. The successful formation of nano-hybrids was confirmed by FT-IR, UV-Vis, and FE-SEM analyses, showing a uniform spherical ZnO-NPs with an average diameter of 20-30 nm, homogeneously dispersed on NF-CS. The obtained results demonstrated a remarkable antibacterial activity of NF-CS-ZnO-0.6 nano-hybrid against E. coli and S. aureus and, interestingly, no cytotoxic on normal cells (even at a high concentration of 100 μg/mL). Furthermore, NF-CS hybridization efficiently decreased the up-regulation in Cas3, Cas9, and Il6 of inspected fishes compared to the ZnO-NPs. Histopathological examination revealed hepatocyte necrosis in the fish exposed to ZnO-NPs and hyperemia exposed to NF-CS-ZnO-0.6 nano-hybrid. Finally, NF-CS efficiently improved the bio-safety and bactericidal activity of ZnO-NPs; therefore, NF-CS-ZnO nano-hybrid is prominently recommended as a talented low-toxicity antibacterial agent replacement of conventional ZnO-NPs for use in different applications.
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Affiliation(s)
- Erfan Zabihi
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Department of Polymer Engineering, Faculty of Engineering, Golestan University, Gorgan, Iran
| | - Zahra Arab-Bafrani
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Department of Biochemistry and Biophysics, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran; Cancer Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
| | - Seyyed Morteza Hoseini
- Inland Waters Aquatics Resources Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization, Gorgan, Iran
| | - Elham Mousavi
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman, Iran; Department of Microbiology and Virology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Amir Babaei
- Department of Polymer Engineering, Faculty of Engineering, Golestan University, Gorgan, Iran.
| | - Mohsen Khalili
- Medical Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | | | - Naeme Javid
- Department of Molecular Medicine, Golestan University of Medical Sciences, Gorgan, Iran
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5
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Chen Y, He J, Xu L, Xu B, Qian L. Mechanical properties and flame retardancy of PLA composites containing zinc oxide and chain extender. J Appl Polym Sci 2021. [DOI: 10.1002/app.50987] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yajun Chen
- School of Chemistry and Materials Engineering Beijing Technology and Business University Beijing China
- China Light Industry Engineering Technology Research Center of Advanced Flame Retardants Beijing China
- Petroleum and Chemical Industry Engineering Laboratory of Non‐halogen Flame Retardants for Polymers, China Petroleum and Chemical Industry Federation Beijing China
| | - Jingxiu He
- School of Chemistry and Materials Engineering Beijing Technology and Business University Beijing China
- China Light Industry Engineering Technology Research Center of Advanced Flame Retardants Beijing China
- Petroleum and Chemical Industry Engineering Laboratory of Non‐halogen Flame Retardants for Polymers, China Petroleum and Chemical Industry Federation Beijing China
| | - Lifeng Xu
- School of Chemistry and Materials Engineering Beijing Technology and Business University Beijing China
- China Light Industry Engineering Technology Research Center of Advanced Flame Retardants Beijing China
- Petroleum and Chemical Industry Engineering Laboratory of Non‐halogen Flame Retardants for Polymers, China Petroleum and Chemical Industry Federation Beijing China
| | - Bo Xu
- School of Chemistry and Materials Engineering Beijing Technology and Business University Beijing China
- China Light Industry Engineering Technology Research Center of Advanced Flame Retardants Beijing China
- Petroleum and Chemical Industry Engineering Laboratory of Non‐halogen Flame Retardants for Polymers, China Petroleum and Chemical Industry Federation Beijing China
| | - Lijun Qian
- School of Chemistry and Materials Engineering Beijing Technology and Business University Beijing China
- China Light Industry Engineering Technology Research Center of Advanced Flame Retardants Beijing China
- Petroleum and Chemical Industry Engineering Laboratory of Non‐halogen Flame Retardants for Polymers, China Petroleum and Chemical Industry Federation Beijing China
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Rajan KP, Gopanna A, Abdelghani EAM, Thomas SP. Halloysite nanotubes (HNT) as reinforcement for compatibilized blends of polypropylene (PP) and polylactic acid (PLA). JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02738-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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7
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Lohrasbi P, Yeganeh JK. Synergistic toughening of poly(lactic acid)/poly(ethylene vinyl acetate) (
PLA
/
EVA
) by dynamic vulcanization and presence of hydrophobic nanoparticles. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5435] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Pardis Lohrasbi
- Polymer Engineering Department Qom University of Technology Qom Iran
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Hedayati F, Moshiri‐Gomchi N, Assaran‐Ghomi M, Sabahi S, Bahri‐Laleh N, Mehdipour‐Ataei S, Mokhtari‐Aliabad J, Mirmohammadi SA. Preparation and properties of enhanced nanocomposites based on PLA/PC blends reinforced with silica nanoparticles. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4797] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fatemeh Hedayati
- Department of Chemical Engineering, Central Tehran BranchIslamic Azad University Tehran Iran
| | - Nasrin Moshiri‐Gomchi
- Department of Chemical Engineering, Central Tehran BranchIslamic Azad University Tehran Iran
| | - Mahmood Assaran‐Ghomi
- Department of Chemistry, Science and Research BranchIslamic Azad University Tehran Iran
| | - Sara Sabahi
- Department of Chemistry, Science and Research BranchIslamic Azad University Tehran Iran
| | - Naeimeh Bahri‐Laleh
- Polymerization Engineering DepartmentIran Polymer and Petrochemical Institute Tehran Iran
| | - Shahram Mehdipour‐Ataei
- Polyurethanes and Advanced Polymeric Materials DepartmentIran Polymer and Petrochemical Institute Tehran Iran
| | | | - Seyed Amin Mirmohammadi
- Department of Chemical Engineering, Central Tehran BranchIslamic Azad University Tehran Iran
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