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Jabbari P, Mahdavinia GR, Rezaei PF, Heragh BK, Labib P, Jafari H, Javanshir S. pH-responsive magnetic biocompatible chitosan-based nanocomposite carrier for ciprofloxacin release. Int J Biol Macromol 2023; 250:126228. [PMID: 37558030 DOI: 10.1016/j.ijbiomac.2023.126228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 07/30/2023] [Accepted: 08/06/2023] [Indexed: 08/11/2023]
Abstract
The pH-sensitive and magnetic-triggered release ensures the effective delivery of drugs. Chitosan carries amine pendants that encourage the fabrication of pH-responsive carriers. Montmorillonite (MMt), an attractive nano-clay in drug delivery possessing high encapsulation properties, was magnetized through the co-precipitation of Fe3+/Fe2+ ions. The study aimed to integrate the magnetic montmorillonite (mMMt) into the chitosan matrix and crosslinked by citric acid (CA) to achieve the nanocomposite carrier with double-responsive features for effective drug delivery. The release evaluation revealed that coating the mMMt with CA-crosslinked chitosan prevented the burst release of Ciprofluxcacin (Cip). The nanocomposite showed a high sustained release, and the release rate in the neutral environment (pH 7.4) was remarkably higher than in acidic media (pH 5.8). The new nanocomposite carrier showed high encapsulation efficiency to Cip (about 98 %). The study was developed by investigating external magnetic effects on the release rate, which lead to an increase in the release rate. The kinetics studies confirmed the diffusion mechanism for Cip release in all experimental media. The Cip-loaded nanocomposite carriers showed antibacterial activity against E. coli and S. aureus.
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Affiliation(s)
- Parinaz Jabbari
- Polymer Research Laboratory, Department of Chemistry, Faculty of Science, University of Maragheh, 55181-83111 Maragheh, Iran
| | - Gholam Reza Mahdavinia
- Polymer Research Laboratory, Department of Chemistry, Faculty of Science, University of Maragheh, 55181-83111 Maragheh, Iran.
| | - Parisa Fathi Rezaei
- Department of Biology, Faculty of Science, University of Maragheh, 55181-83111 Maragheh, Iran
| | - Bagher Kazemi Heragh
- Polymer Research Laboratory, Department of Chemistry, Faculty of Science, University of Maragheh, 55181-83111 Maragheh, Iran
| | - Parisa Labib
- Polymer Research Laboratory, Department of Chemistry, Faculty of Science, University of Maragheh, 55181-83111 Maragheh, Iran
| | - Hessam Jafari
- Polymer Research Laboratory, Department of Chemistry, Faculty of Science, University of Maragheh, 55181-83111 Maragheh, Iran
| | - Shahrzad Javanshir
- Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran.
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Nath PC, Debnath S, Sharma M, Sridhar K, Nayak PK, Inbaraj BS. Recent Advances in Cellulose-Based Hydrogels: Food Applications. Foods 2023; 12:foods12020350. [PMID: 36673441 PMCID: PMC9857633 DOI: 10.3390/foods12020350] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023] Open
Abstract
In the past couple of years, cellulose has attracted a significant amount of attention and research interest due to the fact that it is the most abundant and renewable source of hydrogels. With increasing environmental issues and an emerging demand, researchers around the world are focusing on naturally produced hydrogels in particular due to their biocompatibility, biodegradability, and abundance. Hydrogels are three-dimensional (3D) networks created by chemically or physically crosslinking linear (or branching) hydrophilic polymer molecules. Hydrogels have a high capacity to absorb water and biological fluids. Although hydrogels have been widely used in food applications, the majority of them are not biodegradable. Because of their functional characteristics, cellulose-based hydrogels (CBHs) are currently utilized as an important factor for different aspects in the food industry. Cellulose-based hydrogels have been extensively studied in the fields of food packaging, functional food, food safety, and drug delivery due to their structural interchangeability and stimuli-responsive properties. This article addresses the sources of CBHs, types of cellulose, and preparation methods of the hydrogel as well as the most recent developments and uses of cellulose-based hydrogels in the food processing sector. In addition, information regarding the improvement of edible and functional CBHs was discussed, along with potential research opportunities and possibilities. Finally, CBHs could be effectively used in the industry of food processing for the aforementioned reasons.
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Affiliation(s)
- Pinku Chandra Nath
- Department of Bio Engineering, National Institute of Technology Agartala, Jirania 799046, India
| | - Shubhankar Debnath
- Department of Bio Engineering, National Institute of Technology Agartala, Jirania 799046, India
| | - Minaxi Sharma
- Haute Ecole Provinciale de Hainaut-Condorcet, 7800 Ath, Belgium
| | - Kandi Sridhar
- Department of Food Technology, Karpagam Academy of Higher Education, Coimbatore 641021, India
| | - Prakash Kumar Nayak
- Department of Food Engineering and Technology, Central Institute of Technology Kokrajhar, Kokrajhar 783370, India
- Correspondence: (P.K.N.); or (B.S.I.)
| | - Baskaran Stephen Inbaraj
- Department of Food Science, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Correspondence: (P.K.N.); or (B.S.I.)
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Karthick Raja Namasivayam S, Manohar M, Aravind Kumar J, Samrat K, Kande A, Arvind Bharani RS, Jayaprakash C, Lokesh S. Green chemistry principles for the synthesis of anti fungal active gum acacia-gold nanocomposite - natamycin (GA-AuNC-NT) against food spoilage fungal strain Aspergillus ochraceopealiformis and its marked Congo red dye adsorption efficacy. ENVIRONMENTAL RESEARCH 2022; 212:113386. [PMID: 35569536 DOI: 10.1016/j.envres.2022.113386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/19/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
In this present study, a highly stable gum acacia -gold nanocomposite fabricated with food preservative agent natamycin (GA-AuNC-NT) was prepared via green science principles under in vitro conditions. Various characterisation techniques reveal highly stable structural, functional properties of the synthesised nanocomposite with marked antifungal activity and adsorption efficacy against congo red dye. The antifungal activity was investigated against the fungal strain Aspergillus ochraceopealiformis isolated from spoiled, expired bread. The well diffusion assay, fungal hyphae fragmentation assay and spore germination inhibition assay were used to determine the antifungal activity of the synthesised nanocomposite. Potential antifungal activity of the synthesised nanocomposite was confirmed by recording zone of inhibition, high rate of hyphae fragmentation and marked spore germination inhibition against the tested fungal strain. The molecular mechanism of antifungal activity was studied by measuring oxidative stress marker genes like catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) induction adopting quantitative real-time polymerase chain reaction (q RT-PCR). Among the various treatment, a notable reduction in all the tested marker genes expression was recorded in the nanocomposite treated fungal strain. Release profile studies using different solvents reveals sustained or controlled release of natamycin at the increasing periods. The synthesised nanocomposite's high safety or biocompatibility was evaluated with the Wistar animal model by determining notable changes in behavioural, biochemical, haematological and histopathological parameters. The synthesised nanocomposite did not exhibit any undesirable changes in all the tested parameters confirming the marked biosafety or biocompatibility. The nanocomposite was coated on the bread packaging material. The effect of packaging on the proximate composition, antioxidative enzymes status, and fungal growth of bread samples incubated under the incubation period were studied. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) studies reveal that the nanocomposite was effectively coated on the packaging material without changing size, shape, and functional groups. No changes in the proximate composition and antioxidative enzymes of the packaged bread samples incubated under different incubation periods reveal the nanocomposite's marked safety. The complete absence of the fungal growth also indicates the uniqueness of the nanocomposite. Further, the sorption studies revealed the utilisation of Langmuir mechanism and pseudo II order model successfully The present finding implies that the synthesised nanocomposite can be used as an effective, safe food preservative agent and adsorbent of toxic chemicals.
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Affiliation(s)
- S Karthick Raja Namasivayam
- Department of Research and Innovation, Saveetha School of Engineering, SIMATS, Chennai, 602105, Tamil Nadu, India.
| | - Mohith Manohar
- Centre for Bioresource Research.& Development (C-BIRD), Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai 119, Tamil Nadu, India
| | - J Aravind Kumar
- Department of Biomass & Energy Conversion, Saveetha School of Engineering, SIMATS, Chennai, 602105, Tamil Nadu, India.
| | - K Samrat
- Department of Biotechnology, M. S. Ramaiah Institute of Technology, Bangalore, 560054, Karnataka, India
| | - Akhil Kande
- Centre for Bioresource Research.& Development (C-BIRD), Department of Biotechnology, Sathyabama Institute of Science and Technology, Chennai 119, Tamil Nadu, India
| | | | - C Jayaprakash
- Food Microbiology Division, Defence Food Research Laboratory (DFRL), Mysuru (Mysore), 570011, Karnataka, India
| | - S Lokesh
- Department of Energy & Environmental Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, Tamil Nadu, India
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Alaş M, Doğan G, Yalcin MS, Ozdemir S, Genç R. Multicolor Emitting Carbon Dot-Reinforced PVA Composites as Edible Food Packaging Films and Coatings with Antimicrobial and UV-Blocking Properties. ACS OMEGA 2022; 7:29967-29983. [PMID: 36061643 PMCID: PMC9434783 DOI: 10.1021/acsomega.2c02984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Active food packaging has become attractive because of the possibility to provide a longer shelf-life by loading functional agents into the packages to maintain the quality of food products. Herein, photoluminescent and transparent polyvinyl alcohol (PVA)-based composites embedding multicolor fluorescent carbon dots (CD/PVA) were prepared by the solvent casting method. The prepared CDs emit a strong and stable fluorescence in solution while the CD/PVA composite films were transparent, flexible, and showed UV-blocking activity with a strong fluorescence emission. Blue color-emitting CDs showed the highest UV blockage at UVA (87.04%), UVB (87.04%), and UVC (92.22%) regions while PVA alone absorbed only less than 25% of the light in all UV regions. UV blockage capacity was shown to be decreased by half, in line with the emission color shift from blue to red. Thermal properties of the PVA film were improved by the addition of CDs to the polymer, and in vitro cell viability tests showed that none of the CDs were cytotoxic against the human lung fibroblast healthy cell line (MRC-F cells) when integrated into the PVA. The antimicrobial activity of CD/PVA nanofilms was qualitatively determined. The prepared films exhibited good antimicrobial activity against both Gram-positive and Gram-negative bacteria with mild antioxidant and metal chelating activity, and significant inhibition of biofilm formation with a strong link with emitted color and the concentration of the composites. Green- and red-emitting CD/PVA with the highest antimicrobial activity were then analyzed and compared with the plane PVA employing their effect on the shelf-life of strawberries as a model for perishable foods. Fresh strawberries dip coated with CD/PVA and PVA were monitored over time, and virtual evaluations showed that CDs/PVA film coating resulted in reduced weight and moisture loss and significantly inhibited the fungal growth and spoiling for over 6 days at RT and 12 days at fridge conditions maintaining the visual appearance and natural color of the fruit. The findings in this work indicated the potential of reported CD as non-cytotoxic, UV-blocking antimicrobial additives for the development of edible coatings and packages for their use in the food industry, as well as pharmaceutical and healthcare applications.
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Affiliation(s)
- Melis
Özge Alaş
- Department
of Chemical Engineering, Engineering Faculty, Mersin University, Mersin TR-33343, Turkey
| | - Gamze Doğan
- Faculty
of Engineering Department of Bioengineering, Izmir Institute of Technology, Urla-Izmir TR-35430, Turkey
| | - Mustafa Serkan Yalcin
- Department
of Chemistry and Chemical Processing Technologies, Technical Science
Vocational School, Mersin University, Mersin TR-33343, Yenisehir, Turkey
| | - Sadin Ozdemir
- Food
Processing Programme, Technical Science Vocational School, Mersin University, Mersin TR-33343, Yenisehir, Turkey
| | - Rükan Genç
- Department
of Chemical Engineering, Engineering Faculty, Mersin University, Mersin TR-33343, Turkey
- Nanotechnology
Research and Application Centre, Sabanci
University, Istanbul TR-34956, Turkey
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Giannakas AE, Salmas CE, Moschovas D, Baikousi M, Kollia E, Tsigkou V, Karakassides A, Leontiou A, Kehayias G, Avgeropoulos A, Proestos C. Nanocomposite Film Development Based on Chitosan/Polyvinyl Alcohol Using ZnO@montmorillonite and ZnO@Halloysite Hybrid Nanostructures for Active Food Packaging Applications. NANOMATERIALS 2022; 12:nano12111843. [PMID: 35683702 PMCID: PMC9182113 DOI: 10.3390/nano12111843] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022]
Abstract
The global turn from the linear to the circular economy imposes changes in common activities such as food packaging. The use of biodegradable materials such as polyvinyl alcohol, natural raw materials such as clays, and food byproducts such as chitosan to develop novel food packaging films attracts the interest of industrial and institutional research centers. In this study, novel hybrid nanostructures were synthesized via the growth of zinc oxide nanorods on the surface of two nanoclays. The obtained nanostructures were incorporated with chitosan/polyvinyl alcohol composite either as nanoreinforcement or as an active agent to develop packaging films. The developed films were characterized via XRD, FTIR, mechanical, water-vapor diffusion, water sorption, and oxygen permeability measurements. Antimicrobial activity measurements were carried out against four different pathogen microorganisms. XRD indicated the formation of an intercalated nanocomposite structure for both types of nanoclays. Furthermore, improved tensile, water/oxygen barrier, and antimicrobial properties were recorded for all films compared to the pure chitosan/polyvinyl alcohol film. Overall, the results indicated that the use of the bio-based developed films led to an extension of food shelf life and could be used as novel active food packaging materials. Among them, the most promising film was the 6% wt. ZnO@halloysite.
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Affiliation(s)
- Aris E. Giannakas
- Department of Food Science and Technology, University of Patras, 30100 Agrinio, Greece;
- Correspondence: (A.E.G.); (C.E.S.); (C.P.)
| | - Constantinos E. Salmas
- Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
- Correspondence: (A.E.G.); (C.E.S.); (C.P.)
| | - Dimitrios Moschovas
- Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
| | - Maria Baikousi
- Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
| | - Eleni Kollia
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, Greece; (E.K.); (V.T.)
| | - Vasiliki Tsigkou
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, Greece; (E.K.); (V.T.)
| | - Anastasios Karakassides
- Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
| | - Areti Leontiou
- Laboratory of Food Technology, Department of Business Administration of Agricultural and Food Enterprises, University of Patras, 30100 Agrinio, Greece;
| | - George Kehayias
- Department of Food Science and Technology, University of Patras, 30100 Agrinio, Greece;
| | - Apostolos Avgeropoulos
- Department of Material Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (D.M.); (M.B.); (A.K.); (A.A.)
| | - Charalampos Proestos
- Laboratory of Food Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Zografou, 15771 Athens, Greece; (E.K.); (V.T.)
- Correspondence: (A.E.G.); (C.E.S.); (C.P.)
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Zeeshan M, Dilshad MR, Islam A, Iqbal SS, Akram MS, Mehmood F, Gull N, Khan RU. Synergistic effect of silane cross-linker (APTEOS) on PVA/gelatin blend films for packaging applications. HIGH PERFORM POLYM 2021. [DOI: 10.1177/0954008321994659] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The objective of this work is to fabricate hydrogel films which are biodegradable and also fit for packaging applications. The hydrogel films were prepared by the reaction of polyvinyl alcohol and gelatin with and without 3-aminopropyltriethoxysilane (APTEOS) cross-linker. The hydrogel films were then characterized by FTIR spectroscopy, degree of swelling, TGA, SEM analysis and mechanical testing. The FTIR spectra of the hydrogel films confirmed the presence of both polymers and hydrogen bonding between them. TGA analysis confirmed the increase in thermal stability with the increase of cross-linker amount. SEM analysis confirmed the increase in uniformity of structure with the increase of cross-linker amount. The increase in cross-linker amount resulted in decrease of degree of swelling and increase of tensile strength. The biodegradability of hydrogel films was evaluated by performing soil burial test and found to be decreased with the increase of cross-linker amount. In order to balance the tensile strength and biodegradability, the optimum amount of cross-linker was determined which resulted in the formation of the best performing film. Finally, our best performing film was compared with other hydrogel films reported in the literature. Hence, the hydrogel films cross-linked with APTEOS are biodegradable, having high tensile strength and suitable for packaging purpose.
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Affiliation(s)
- Muhammad Zeeshan
- Department of Polymer Engineering and Technology, University of the Punjab, Lahore, Pakistan
| | - Muhammad Rizwan Dilshad
- Department of Polymer Engineering and Technology, University of the Punjab, Lahore, Pakistan
- Institute of Chemical Engineering and Technology, University of the Punjab, Lahore, Pakistan
| | - Atif Islam
- Department of Polymer Engineering and Technology, University of the Punjab, Lahore, Pakistan
| | | | - Muhammad Sarfraz Akram
- Institute of Energy and Environmental Engineering, University of the Punjab, Lahore, Pakistan
| | - Farhan Mehmood
- Department of Polymer Engineering and Technology, University of the Punjab, Lahore, Pakistan
| | - Nafisa Gull
- Department of Polymer Engineering and Technology, University of the Punjab, Lahore, Pakistan
| | - Rafi Ullah Khan
- Department of Polymer Engineering and Technology, University of the Punjab, Lahore, Pakistan
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Influence of succinylation of a wide-pore albumin cryogels on their properties, structure, biodegradability, and release dynamics of dioxidine loaded in such spongy carriers. Int J Biol Macromol 2020; 160:583-592. [PMID: 32479937 DOI: 10.1016/j.ijbiomac.2020.05.251] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/14/2020] [Accepted: 05/27/2020] [Indexed: 11/21/2022]
Abstract
The goal of this study was to reveal how the chemical modification, succinylation in this case, of the wide-pore serum-albumin-based cryogels affects on their osmotic characteristics (swelling extent), biodegradability and ability to be loaded with the bactericide substance - dioxidine, as well as on its release. The cryogels were prepared via the cryogenic processing (freezing - frozen storage - thawing) of aqueous solutions containing bovine serum albumin (50 g/L), denaturant (urea or guanidine hydrochloride, 1.0 mol/L) and reductant (cysteine, 0.01 mol/L). Freezing/frozen storage temperatures were either -15, or -20, or -25 °C. After defrosting, spongy cryogels were obtained that possessed the system of interconnected gross pores, whose shape and dimensions were dependent on the freezing temperature and on the type of denaturant introduced in the feed solution. Subsequent succinylation of the resultant cryogels caused the growth of the swelling degree of the pore walls of these spongy materials, resulted in strengthening of their resistance against of trypsinolysis and gave rise to an increase in their loading capacity with respect to dioxidine. With that, the microbiological tests showed a higher bactericidal activity of the dioxidine-loaded sponges based on the succinylated albumin cryogels as compared to that of the drug-carriers based on the non-modified protein sponges.
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Antimicrobial food packaging based on sustainable Bio-based materials for reducing foodborne Pathogens: A review. Food Chem 2020; 310:125915. [DOI: 10.1016/j.foodchem.2019.125915] [Citation(s) in RCA: 184] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/28/2019] [Accepted: 11/14/2019] [Indexed: 12/14/2022]
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Semlali Aouragh Hassani FZ, El Bourakadi K, Merghoub N, Qaiss AEK, Bouhfid R. Effect of chitosan/modified montmorillonite coating on the antibacterial and mechanical properties of date palm fiber trays. Int J Biol Macromol 2020; 148:316-323. [PMID: 31931055 DOI: 10.1016/j.ijbiomac.2020.01.092] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 01/11/2023]
Abstract
In this study, the coated date palm fiber (Dpf) trays were developed using new non-toxic, and eco-friendly materials which are date palm fibers coated with a bio-composite of modified clay (Mt-Tbz). The thiabendazolium was intercalated in the interlayer space of montmorillonite and used in order to enhance the biological properties of final materials. This material was prepared as bilayer material, the first layer contains the treated palm fibers and the second one composes of bio-composite films through coating process. The elaborated coated Dpf trays were characterized using several techniques. The morphological characterization of the Dpf trays and coated Dpf trays (Dpf@Cs/Mt-Tbz), show a better dispersion/distribution of chitosan/montmorillonite modified thiabendazolium salt based coating bio-composite on the fibers surface, these results can improve the mechanical properties of the new coated Dpf trays in term of Young's modulus from 330 MPa to 1035 MPa and tensile strength from 0.5 MPa to 4 MPa. In addition, their inhibitory effect against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa has been investigated. Furthermore, the coating layer increase also the surface hydrophobicity compared to uncoated trays. The present study suggests that the elaborated coated Dpf trays can be used as potential bilayer material in the smart packaging industry.
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Affiliation(s)
- Fatima-Zahra Semlali Aouragh Hassani
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rue Mohamed Al Jazouli Madinat Al Irfane, Rabat 10100, Morocco; Mohammed V-Rabat University, Faculty of Science, Department of Physics, Mechanics of Materials Laboratory, Rabat, Morocco
| | - Khadija El Bourakadi
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rue Mohamed Al Jazouli Madinat Al Irfane, Rabat 10100, Morocco; Mohammed V-Rabat University, Faculty of Science, Laboratoire de Chimie Organique et Hétérocyclique, Rabat, Morocco
| | - Nawal Merghoub
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Green Biotechnology Center, Rue Mohamed Al Jazouli Madinat Al Irfane, Rabat 10100, Morocco
| | - Abou El Kacem Qaiss
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rue Mohamed Al Jazouli Madinat Al Irfane, Rabat 10100, Morocco
| | - Rachid Bouhfid
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rue Mohamed Al Jazouli Madinat Al Irfane, Rabat 10100, Morocco.
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Poly(vinyl alcohol) Hydrogel/Chitosan-Modified Clay Nanocomposites for Wound Dressing Application and Controlled Drug Release. Macromol Res 2019. [DOI: 10.1007/s13233-019-7046-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Podorozhko EA, Vasil’ev VG, Vasiliev NK, Lozinsky VI. A Study of Cryostructuring of Polymer Systems. 51. The Combined Influence of Porous Cellulose-Containing Dispersed Fillers and Salting-Out Electrolytes on the Physicochemical Properties of Composite Poly(vinyl alcohol) Cryogels. COLLOID JOURNAL 2019. [DOI: 10.1134/s1061933x19020121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Comparison of Properties of PVA Nanocomposites Containing Reduced Graphene Oxide and Functionalized Graphene. Polymers (Basel) 2019; 11:polym11030450. [PMID: 30960434 PMCID: PMC6473449 DOI: 10.3390/polym11030450] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/03/2019] [Accepted: 03/06/2019] [Indexed: 11/17/2022] Open
Abstract
The thermal properties, morphologies, oxygen barrier properties, and electrical conductivities of poly(vinyl alcohol) (PVA) hybrid films containing different nanofillers were compared. For the fabrication of the PVA hybrid films, we used reduced graphene oxide (RGO) synthesized from graphite or functionalized hexadecylamine-graphene sheets (HDA-GS) obtained from HDA and GS as a reinforcing filler. The properties of the PVA hybrid films fabricated by intercalating PVA and the fillers for different filler contents ranging from 3 to 10% w/w were then compared. The dispersions of the graphene fillers in the matrix polymers were examined using wide-angle X-ray diffraction and field emission scanning electron microscopy, and the changes in their thermal properties were observed using differential scanning calorimetry and thermogravimetric analysis. Moreover, we measured the oxygen permeability and electrical conductivity of the films to investigate their industrial applications. In addition, all the physical properties of the PVA composites obtained using the two nanofillers were compared.
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Cryostructuring of Polymeric Systems. 49. Unexpected "Kosmotropic-Like" Impact of Organic Chaotropes on Freeze⁻Thaw-Induced Gelation of PVA in DMSO. Gels 2018; 4:gels4040081. [PMID: 30674857 PMCID: PMC6318644 DOI: 10.3390/gels4040081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/03/2018] [Accepted: 10/04/2018] [Indexed: 12/13/2022] Open
Abstract
Urea (URE) and guanidine hydrochloride (GHC) possessing strong chaotropic properties in aqueous media were added to DMSO solutions of poly(vinyl alcohol) (PVA) to be gelled via freeze⁻thaw processing. Unexpectedly, it turned out that in the case of the PVA cryotropic gel formation in DMSO medium, the URE and GHC additives caused the opposite effects to those observed in water, i.e., the formation of the PVA cryogels (PVACGs) was strengthened rather than inhibited. Our studies of this phenomenon showed that such "kosmotropic-like" effects were more pronounced for the PVACGs that were formed in DMSO in the presence of URE additives, with the effects being concentration-dependent. The additives also caused significant changes in the macroporous morphology of the cryogels; the commonly observed trend was a decrease in the structural regularity of the additive-containing samples compared to the additive-free gel sample. The viscosity measurements revealed consistent changes in the intrinsic viscosity, Huggins constant, and the excess activation heat of the viscosity caused by the additives. The results obtained evidently point to the urea-induced decrease in the solvation ability of DMSO with respect to PVA. As a result, this effect can be the key factor that is responsible for strengthening the structure formation upon the freeze⁻thaw gelation of this polymer in DMSO additionally containing additives such as urea, which is capable of competing with PVA for the solvent.
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Kumar S, Sarita, Nehra M, Dilbaghi N, Tankeshwar K, Kim KH. Recent advances and remaining challenges for polymeric nanocomposites in healthcare applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.03.001] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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15
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Kolosova OY, Kurochkin IN, Kurochkin II, Lozinsky VI. Cryostructuring of polymeric systems. 48. Influence of organic chaotropes and kosmotropes on the cryotropic gel-formation of aqueous poly(vinyl alcohol) solutions. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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16
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Tao G, Cai R, Wang Y, Song K, Guo P, Zhao P, Zuo H, He H. Biosynthesis and Characterization of AgNPs-Silk/PVA Film for Potential Packaging Application. MATERIALS 2017; 10:ma10060667. [PMID: 28773026 PMCID: PMC5554048 DOI: 10.3390/ma10060667] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/06/2017] [Accepted: 06/13/2017] [Indexed: 02/06/2023]
Abstract
Bionanocomposite packaging materials have a bright future for a broad range of applications in the food and biomedical industries. Antimicrobial packaging is one of the bionanocomposite packaging materials. Silver nanoparticle (AgNP) is one of the most attractive antimicrobial agents for its broad spectrum of antimicrobial activity against microorganisms. However, the traditional method of preparing AgNPs-functionalized packaging material is cumbersome and not environmentally friendly. To develop an efficient and convenient biosynthesis method to prepare AgNPs-modified bionanocomposite material for packaging applications, we synthesized AgNPs in situ in a silk fibroin solution via the reduction of Ag⁺ by the tyrosine residue of fibroin, and then prepared AgNPs-silk/poly(vinyl alcohol) (PVA) composite film by blending with PVA. AgNPs were synthesized evenly on the surface or embedded in the interior of silk/PVA film. The prepared AgNPs-silk/PVA film exhibited excellent mechanical performance and stability, as well as good antibacterial activity against both Gram-negative and Gram-positive bacteria. AgNPs-silk/PVA film offers more choices to be potentially applied in the active packaging field.
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Affiliation(s)
- Gang Tao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Rui Cai
- College of Biotechnology, Southwest University, Chongqing 400715, China.
| | - Yejing Wang
- College of Biotechnology, Southwest University, Chongqing 400715, China.
| | - Kai Song
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Pengchao Guo
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Ping Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Hua Zuo
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China.
| | - Huawei He
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing 400715, China.
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17
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Cheaburu Yilmaz CN, Pamfil D, Vasile C, Bibire N, Lupuşoru RV, Zamfir CL, Lupușoru CE. Toxicity, Biocompatibility, pH-Responsiveness and Methotrexate Release from PVA/Hyaluronic Acid Cryogels for Psoriasis Therapy. Polymers (Basel) 2017; 9:E123. [PMID: 30970803 PMCID: PMC6432429 DOI: 10.3390/polym9040123] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 03/20/2017] [Accepted: 03/22/2017] [Indexed: 11/16/2022] Open
Abstract
Poly(vinyl alcohol)/hyaluronic acid cryogels loaded with methotrexate were studied. The physical⁻chemical characterization of cryogels was performed by FT-IR spectroscopy, scanning electron microscopy, differential scanning calorimetry and dynamic mechanical thermal analysis. Acute toxicity and haematological parameters were determined by "in vivo" tests. The biocompatibility tests proved that the obtained cryogels showed significantly decreased toxicity and are biocompatible. The pH-responsiveness of the swelling behaviour and of the methotrexate release from the poly(vinyl alcohol)/hyaluronic acid (PVA/HA) cryogels were studied in a pH interval of 2⁻7.4. A significant change in properties was found at pH 5.5 specific for treatment of affected skin in psoriasis disease.
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Affiliation(s)
- Cătălina Natalia Cheaburu Yilmaz
- Department of Physical Chemistry of Polymers, "Petru Poni" Institute of Macromolecular Chemistry of the Romanian Academy, Iași 700487, Romania.
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University, Izmir 35100, Turkey.
| | - Daniela Pamfil
- Department of Physical Chemistry of Polymers, "Petru Poni" Institute of Macromolecular Chemistry of the Romanian Academy, Iași 700487, Romania.
| | - Cornelia Vasile
- Department of Physical Chemistry of Polymers, "Petru Poni" Institute of Macromolecular Chemistry of the Romanian Academy, Iași 700487, Romania.
| | - Nela Bibire
- Department of Analytical Chemistry, Faculty of Pharmacy, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi 700115, Romania.
| | - Raoul-Vasile Lupuşoru
- Department of Pathophysiology, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi 700115, Romania.
| | - Carmen-Lăcrămioara Zamfir
- Department of Histology, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universităţii Street, Iaşi 700115, Romania.
| | - Cătălina Elena Lupușoru
- Department of Pharmacology, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, Iaşi 700115, Romania.
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18
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Zhu Y, Shang Y, Zhang H, Ding L, Zhao Y, Han Y, Jiang Z. Friction and wear properties of poly(ether sulfone) containing perfluorocarbon end group. HIGH PERFORM POLYM 2017. [DOI: 10.1177/0954008317690433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Poly(ether sulfone) (PES) with high coefficient of friction (COF) and wear rate needs treatment to enhance its tribological property in engineering plastic area. Here, the low surface energy of perfluorocarbon chains terminated poly (ether sulfone) (PES-F) had been used to improve the tribological property of such self-lubricating materials. In this research, the performance enhancement due to the existence of perfluorocarbon group on the material surface was discussed on improvement of anti-friction and wear resistance. On the premise of mechanical strength guarantee, the variation regularity of COF and volume wear rate of PES-F were quantitatively analyzed through the pin-on-disc wear test apparatus, combined with X-ray photoelectron spectroscopy analysis. It was found that PES-F exhibited the best tribological property during the initial phases of friction test, attributing to the highest content of F on the material surface. Observation of PES-F worn surface and wear debris revealed that the COF and wear rate of modified PES were decreased not only due to the effect of perfluorocarbon group but also by the change of worn surface morphology, both of which were the main reasons for anti-friction and anti-wear property enhancement.
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Affiliation(s)
- Ye Zhu
- Engineering Research Center of High Performance Plastic, Ministry of Education, College of Chemistry, Jilin University, Changchun, China
| | - Yingshuang Shang
- Engineering Research Center of High Performance Plastic, Ministry of Education, College of Chemistry, Jilin University, Changchun, China
| | - Haibo Zhang
- Engineering Research Center of High Performance Plastic, Ministry of Education, College of Chemistry, Jilin University, Changchun, China
| | - Lianjun Ding
- Engineering Research Center of High Performance Plastic, Ministry of Education, College of Chemistry, Jilin University, Changchun, China
| | | | - Yuntao Han
- Engineering Research Center of High Performance Plastic, Ministry of Education, College of Chemistry, Jilin University, Changchun, China
| | - Zhenghua Jiang
- Engineering Research Center of High Performance Plastic, Ministry of Education, College of Chemistry, Jilin University, Changchun, China
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19
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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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Poly (vinyl alcohol)/chitosan cryogels as PH responsive ciprofloxacin carriers. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1042-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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