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Ibrahim MA, Nasr GM, Ahmed RM, Kelany NA. Physical characterization, biocompatibility, and antimicrobial activity of polyvinyl alcohol/sodium alginate blend doped with TiO 2 nanoparticles for wound dressing applications. Sci Rep 2024; 14:5391. [PMID: 38443415 PMCID: PMC10915162 DOI: 10.1038/s41598-024-55818-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 02/28/2024] [Indexed: 03/07/2024] Open
Abstract
The ability of wound dressing materials to tackle skin pathogens colonization that is associated with open wound infections is limited. Recently, green-synthesized metal oxide nanoparticles has received a lot of attention to overcome this limitation. However, titanium dioxide nanoparticles (TiO2-NPs) exhibit exceptional antibacterial properties. In this work, several concentrations (0, 1, 3, and 5 wt.%) of TiO2 NPs prepared using Aloe vera leaf extract were added to a blend of polyvinyl alcohol and sodium alginate (PVA:SA). This nanocomposite was designed to enhance the healing process of wounds. The interaction between the PVA:SA composite and the TiO2 NPs was confirmed by FTIR. The thermal behavior of the nanocomposite films was investigated using DSC and TGA. The experimental results indicate that the glass transition temperatures of the nanocomposites increased by increasing the added amount of TiO2 NPs to be 53.7 °C (1 wt.%), 55.8 °C (3 wt.%), and 60.6 °C (5 wt.%), which were consistently lower than the glass transition temperature of the matrix material (69.6 °C). The Dynamic Mechanical Analysis was examined. The nanocomposite doped with 5 wt.% of TiO2 NPs detected a high storage modulus (21.6 × 108). Based on swelling and degradation studies, the prepared PVA:SA:TiO2 nanocomposite films have an excellent swelling rate, and the inclusion of TiO2 NPs increases the stability of the polymeric matrix. The PVA:SA:TiO2 nanocomposite films exhibited a superior antibacterial efficacy against Gram-positive bacteria such as Bacillus cereus and Staphylococcus aureus, compared to their effectiveness against Gram-negative bacteria like Escherichia coli. Moreover, the nanocomposite films were biocompatible with Human Skin Fibroblast. Therefore, the developed PVA:SA:TiO2 nanocomposite films suit wound dressing applications.
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Affiliation(s)
- Manar A Ibrahim
- Physics Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
| | - G M Nasr
- Physics Department, Faculty of Science, Cairo University, Giza, Egypt
| | - R M Ahmed
- Physics Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt.
| | - Nermeen A Kelany
- Physics Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
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2
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Iswarya S, Theivasanthi T, Gopinath SCB. Sodium alginate/Hydroxyapatite/nanocellulose composites: Synthesis and Potentials for bone tissue engineering. J Mech Behav Biomed Mater 2023; 148:106189. [PMID: 37852086 DOI: 10.1016/j.jmbbm.2023.106189] [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: 09/23/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023]
Abstract
Sodium alginate/hydroxyapatite/Nano cellulose (SA/HA/NC) nanocomposite films that possess good biocompatibility for bone tissue engineering are prepared by a simple solution casting. HA is one of the most frequently used bioceramic materials to achieve a high biocompatibility. The bionanocomposite films are analysed by XRD, SEM, EDAX and FTIR studies. XRD confirms the existence of fillers in the polymer. FTIR spectrum shows the different functional modes in the bionanocomposite films. The morphology of fillers and bionanocomposite films are obtained through SEM. The inclusion of NC with different concentrations into the biopolymer film improves the tensile strength. As a result, the loading of 5 wt % of NC and 10 wt% of HA in the SA polymer shows high tensile strength when compared to the pure SA, SA filled with 10 wt% of HA and SA loaded with 10 wt% of HA and inclusion of NC (0.5 and 2.5 wt%). The tensile strength (TS) of bionanocomposite film with 10 wt % of HA is increased by 17%. TS of bionanocomposite film with 0.5 and 2.5 wt% of NC is increased by 177 and 277%, whereas TS of bionanocomposite film loaded 5 wt% of NC is increased by 331%. The swelling, biodegradation and biomineralization tests suggest that this bionanocomposite films are hopeful biomaterials for bone tissue engineering.
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Affiliation(s)
- S Iswarya
- International Research Centre, Kalasalingam Academy of Research and Education (Deemed University), Krishnankoil 626126, Tamil Nadu, India; Department of Physics, Kalasalingam Academy of Research and Education (Deemed University), Krishnankoil 626126, Tamil Nadu, India
| | - T Theivasanthi
- International Research Centre, Kalasalingam Academy of Research and Education (Deemed University), Krishnankoil 626126, Tamil Nadu, India; Department of Physics, Kalasalingam Academy of Research and Education (Deemed University), Krishnankoil 626126, Tamil Nadu, India.
| | - Subash C B Gopinath
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), 02600 Arau, Perlis, Malaysia; Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), 01000 Kangar, Perlis, Malaysia; Micro System Technology, Centre of Excellence (CoE), Universiti Malaysia Perlis (UniMAP), Pauh Campus, 02600 Arau, Perlis, Malaysia; Department of Computer Science and Engineering, Faculty of Science and Information Technology, Daffodil International University, Daffodil Smart City, Birulia, Savar, Dhaka, 1216, Bangladesh
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Zhao Y, Kang J, Huang W, Kong P, An D, He G. Copper Nanowire/Polydopamine-Modified Sodium Alginate Composite Films with Enhanced Long-Term Stability and Adhesion for Flexible Organic Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37917355 DOI: 10.1021/acsami.3c13443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Copper nanowire (CuNW), with combined advantages of high conductivity and cost-effectiveness, is considered a promising material for the development of next-generation transparent conductive films (TCFs) in the field of flexible optoelectronics. However, the practical application of CuNW TCFs is hindered by some limitations, such as conductivity degradation and poor adhesion. Here, we demonstrate a stable CuNW composite film by embedding CuNWs into a polydopamine (PDA)-modified sodium alginate (NaAlg) matrix without sacrificing the optoelectronic properties of the CuNW network. The introduction of the PDA modifier significantly enhances the antiaging capability of the NaAlg layer, providing strengthened protection of the embedded CuNWs against moisture and oxygen, thereby resulting in minimal degradation of the conductivity of CuNWs for up to 9 months under ambient conditions. Simultaneously, the interface adhesion between the CuNW network and the substrate is further enhanced due to the abundance of catechol structures in PDA, allowing for the maintenance of the electrical conductivity of the CuNW network even under cyclic external bending stress and tape-peeling forces. In addition, embedding CuNWs into the polymer binding layer produces a CuNW composite film with a very smooth surface. A flexible OLED based on the PDA-modified NaAlg/CuNW TCF is successfully fabricated, exhibiting performance comparable to that of a traditional rigid indium tin oxide-based device, while also demonstrating remarkable mechanical durability. The modification strategy can promote practical applications of the CuNW network in flexible optoelectronic devices.
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Affiliation(s)
- Yu Zhao
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Jiachen Kang
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Wenzhe Huang
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Peng Kong
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Di An
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Gufeng He
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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Eslami Z, Elkoun S, Robert M, Adjallé K. A Review of the Effect of Plasticizers on the Physical and Mechanical Properties of Alginate-Based Films. Molecules 2023; 28:6637. [PMID: 37764413 PMCID: PMC10534897 DOI: 10.3390/molecules28186637] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
In recent years, there has been a growing attempt to manipulate various properties of biodegradable materials to use them as alternatives to their synthetic plastic counterparts. Alginate is a polysaccharide extracted from seaweed or soil bacteria that is considered one of the most promising materials for numerous applications. However, alginate potential for various applications is relatively limited due to brittleness, poor mechanical properties, scaling-up difficulties, and high water vapor permeability (WVP). Choosing an appropriate plasticizer can alleviate the situation by providing higher flexibility, workability, processability, and in some cases, higher hydrophobicity. This review paper discusses the main results and developments regarding the effects of various plasticizers on the properties of alginate-based films during the last decades. The plasticizers used for plasticizing alginate were classified into different categories, and their behavior under different concentrations and conditions was studied. Moreover, the drawback effects of plasticizers on the mechanical properties and WVP of the films are discussed. Finally, the role of plasticizers in the improved processing of alginate and the lack of knowledge on some aspects of plasticized alginate films is clarified, and accordingly, some recommendations for more classical studies of the plasticized alginate films in the future are offered.
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Affiliation(s)
- Zahra Eslami
- Center for Innovation in Technological Ecodesign (CITE), University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada; (Z.E.); (M.R.)
- Research Center for High Performance Polymer and Composite Systems (CREPEC), Montreal, QC H3A 0C3, Canada
| | - Saïd Elkoun
- Center for Innovation in Technological Ecodesign (CITE), University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada; (Z.E.); (M.R.)
- Research Center for High Performance Polymer and Composite Systems (CREPEC), Montreal, QC H3A 0C3, Canada
| | - Mathieu Robert
- Center for Innovation in Technological Ecodesign (CITE), University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada; (Z.E.); (M.R.)
- Research Center for High Performance Polymer and Composite Systems (CREPEC), Montreal, QC H3A 0C3, Canada
| | - Kokou Adjallé
- Environmental Biotechnology Laboratory, Eau Terre Environnement Research Centre, Institut National de la Recherche Scientifique (INRS), Quebec, QC G1K 9A9, Canada;
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Saeed S, Barkat K, Ashraf MU, Shabbir M, Anjum I, Badshah SF, Aamir M, Malik NS, Tariq A, Ullah R. Flexible Topical Hydrogel Patch Loaded with Antimicrobial Drug for Accelerated Wound Healing. Gels 2023; 9:567. [PMID: 37504446 PMCID: PMC10379216 DOI: 10.3390/gels9070567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 07/29/2023] Open
Abstract
A hydrogel topical patch of neomycin was developed by using sodium alginate (SA) and hydroxyethylcellulose (HEC) as polymers. Free radical polymerization in an aqueous medium was initiated by using acrylic acid (AA) and N,N'-methylenebisacrylamide (MBA). Prepared hydrogels were characterized for pH sensitivity and sol-gel analysis. In addition, the effect of reactant contents on the developed formulation was evaluated by swelling behavior. SEM assay showed the rough structure of the hydrogel-based polymeric matrix, which directly enhances the ability to uptake fluid. FTIR spectra revealed the formation of a new polymeric network between reactant contents. TGA and DSC verified that fabricated polymeric patches were more thermodynamically stable than pure components. Gel fractions increased with increases in polymer, monomer, and cross-linker contents. The swelling study showed the pH-dependent swelling behavior of patches at pH 5.5, 6.5, and 7.4. The release pattern of the drug followed zero-order kinetics, with diffusion-controlled drug release patterns according to the Korsmeyer-Peppas (KP) model. Ex vivo studies across excised rabbit skin verified the drug retention in the skin layers. The hydrogel patch effectively healed the wounds produced on the rabbit skin, whereas the formulation showed no sign of irritation on intact skin. Therefore, neomycin hydrogel patches can be a potential candidate for controlled delivery for efficient wound healing.
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Affiliation(s)
- Sana Saeed
- Faculty of Pharmacy, The University of Lahore, Lahore 54000, Pakistan
| | - Kashif Barkat
- Faculty of Pharmacy, The University of Lahore, Lahore 54000, Pakistan
| | | | - Maryam Shabbir
- Faculty of Pharmacy, The University of Lahore, Lahore 54000, Pakistan
| | - Irfan Anjum
- Department of Basic Medical Sciences, Shifa College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan
| | | | - Muhammad Aamir
- Faculty of Pharmacy, The University of Lahore, Lahore 54000, Pakistan
| | - Nadia Shamshad Malik
- Faculty of Pharmacy, Capital University of Science and Technology (CUST), Islamabad 44000, Pakistan
| | - Akash Tariq
- Xinjiang Institute of Ecology and Geography, Chines Academy of Sciences, Urumqi 830011, China
| | - Riaz Ullah
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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Warale D, Prabhu A, Kouser S, Shabeena M, Manasa DJ, Nagaraja GK. Incorporation of sodium alginate functionalized halloysite nanofillers into poly (vinyl alcohol) to study mechanical, cyto/heme compatibility and wound healing application. Int J Biol Macromol 2023; 232:123278. [PMID: 36657540 DOI: 10.1016/j.ijbiomac.2023.123278] [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: 07/11/2022] [Revised: 12/30/2022] [Accepted: 01/11/2023] [Indexed: 01/18/2023]
Abstract
In this study, the Halloysite nanotubes (HNTs) are surface-functionalized with sodium alginate (Sod.alg) and poly (vinyl alcohol) (PVA) were employed to generate nanocomposite films (Sod.alg-rHNT/PVA). These nanocomposite films were made via the solution casting technique. FE-SEM data verified sod.alg-rHNT dispersion into the PVA matrix. The modifications were confirmed from FTIR, TGA and PXRD techniques. In the mechanical studies of synthesized nanocomposite films, the films showed a considerable increase in the tensile strength and Young's modulus values. The nanocomposite film's ability to induce cell proliferation and migration was investigated using murine fibroblast (NIH3T3) cells. The films increased cellular proliferation (128 ± 1.07 %) compared to the neat PVA. Cell adhesion tests showed cytocompliant films. In the scratch assay, the 5 wt% film elicited wound closure at a faster rate (91.53 ± 1.04 %). Films were compatible with human blood cells. Therefore the prepared nanocomposite films can be used as promising wound healers after pre-clinical and clinical testing.
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Affiliation(s)
- Deepali Warale
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, 574199 D.K., Karnataka, India
| | - Ashwini Prabhu
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575018, Karnataka, India
| | - Sabia Kouser
- Department of Chemistry, Karnataka Science College & PG studies, Dharwad 580001, Karnataka, India
| | - M Shabeena
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, 574199 D.K., Karnataka, India
| | - D J Manasa
- Department of Studies in Botany, Davanagere University, Shivagangothri, 577007, Davanagere, Karnataka, India
| | - G K Nagaraja
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, 574199 D.K., Karnataka, India.
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Hezma AM, Shaltout WA, Kabary HA, El-Bahy GS, Abdelrazzak AB. Fabrication, Characterization and Adsorption Investigation of Nano Zinc Oxide–Sodium Alginate Beads for Effective Removal of Chromium (VI) from Aqueous Solution. J Inorg Organomet Polym Mater 2023. [DOI: 10.1007/s10904-023-02573-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
AbstractAlginate–zinc oxide (Alg–ZnO) biocomposite was synthesized and tested as a chromium ions Cr(VI) adsorbent for environmental applications. Alg–ZnO biocomposite was prepared by the interaction between sodium alginate biopolymer and zinc oxide nanoparticles (ZnO–NPs), prepared by modified wet chemical method. The solid adsorption characteristics of the synthesized Alg–ZnO biocomposite were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), and UV–Vis spectroscopy. Adsorption isotherms of chromium ions on the prepared Alg–ZnO biocomposite were investigated with varying the initial concentration of Cr(VI) under different application conditions such as pH, contact time, adsorbent dosage, and temperature. Adsorption of Cr(VI) was investigated by different isotherm models such as Langmuir, Freundlich, Temkin and Dubinin–Radushkevich models. Maximum adsorption capacities (31.09 and 34.63 mg/g) were achieved by ZnO–NPs and Alg–ZnO, respectively at 25 °C. The results of isotherm models indicate the perfect applicability of Langmuir and Dubinin–Radushkevich models, revealing the dominance of monolayer and the physisorption of chromium ions onto the studied adsorbents.
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Bhatia S, Al-Harrasi A, Shah YA, Jawad M, Al-Azri MS, Ullah S, Anwer MK, Aldawsari MF, Koca E, Aydemir LY. Physicochemical Characterization and Antioxidant Properties of Chitosan and Sodium Alginate Based Films Incorporated with Ficus Extract. Polymers (Basel) 2023; 15:polym15051215. [PMID: 36904456 PMCID: PMC10007391 DOI: 10.3390/polym15051215] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/08/2023] Open
Abstract
Aqueous extract of fruit obtained from Ficus racemosa enriched with phenolic components was used for the first time to fabricate chitosan (CS) and sodium alginate (SA)-based edible films. The edible films supplemented with Ficus fruit aqueous extract (FFE) were characterized physiochemically (using Fourier transform infrared spectroscopy (FT-IR), Texture analyser (TA), Thermogravimetric analysis (TGA), scanning electron microscopy (SEM), X-ray diffraction (XRD), and colourimeter) and biologically (using antioxidant assays). CS-SA-FFA films showed high thermal stability and high antioxidant properties. The addition of FFA into CS-SA film decreased transparency, crystallinity, tensile strength (TS), and water vapour permeability (WVP) but ameliorate moisture content (MC), elongation at break (EAB) and film thickness. The overall increase in thermal stability and antioxidant property of CS-SA-FFA films demonstrated that FFA could be alternatively used as a potent natural plant-based extract for the development of food packaging material with improved physicochemical and antioxidant properties.
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Affiliation(s)
- Saurabh Bhatia
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
- School of Health Science, University of Petroleum and Energy Studies, Dehradun 248007, India
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, India
- Correspondence: (S.B.); (A.A.-H.)
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
- Correspondence: (S.B.); (A.A.-H.)
| | - Yasir Abbas Shah
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
| | - Muhammad Jawad
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
| | - Mohammed Said Al-Azri
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
| | - Sana Ullah
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
| | - Md Khalid Anwer
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Mohammed F. Aldawsari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Esra Koca
- Department of Food Engineering, Adana Alparslan Turkes Science and Technology University, Adana 01250, Turkey
| | - Levent Yurdaer Aydemir
- Department of Food Engineering, Adana Alparslan Turkes Science and Technology University, Adana 01250, Turkey
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Stabilization Activity of Kelp Extract in Ethylene-Propylene Rubber as Safe Packaging Material. Polymers (Basel) 2023; 15:polym15040977. [PMID: 36850259 PMCID: PMC9967782 DOI: 10.3390/polym15040977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
This paper presents the stabilization effects of the solid extract of kelp (Ascophyllum nodosum) on an engineering elastomer, ethylene-propylene copolymer (EPR), which may be used as packaging material. Progressive increase in additive loadings (0.5, 1, and 2 phr) increases the oxidation induction time for thermally aged rubber at 190 °C from 10 min to 30 min for pristine material and modified polymer by adding 2 phr protection powder. When the studied polymer is γ-irradiated at 50 and 100 kGy, the onset oxidation temperatures increase as a result of blocking the oxidation reactivity of free radicals. The stabilization effect occurs through the activity of alginic acid, which is one of the main active components associated with alginates. The accelerated degradation caused by γ-exposure advances more slowly when the kelp extract is present. The OOT value for the oxidation of EPR samples increases from 130 °C to 165 °C after the γ-irradiation of pristine and modified (2 phr of kelp powder) EPR, respectively. The altered oxidation state of EPR samples by the action of γ-rays in saline serum is faster in neat polymer than in stabilized material. When the probes are placed in physiological serum and irradiated at 25 kGy, the OOT value for neat EPR (145 °C) is much lower than the homologous value for the polymer samples protected by kelp extract (153 °C for the concentration of 0.5 phr, 166 °C for the concentration of 1 phr, and 185 °C for the concentration of 2 phr).
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Cáceres D, Giménez B, Márquez-Ruiz G, Holgado F, Vergara C, Romero-Hasler P, Soto-Bustamante E, Robert P. Incorporation of hydroxytyrosol alkyl esters of different chain length as antioxidant strategy in walnut oil spray-dried microparticles with a sodium alginate outer layer. Food Chem 2022; 395:133595. [DOI: 10.1016/j.foodchem.2022.133595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/20/2022] [Accepted: 06/27/2022] [Indexed: 11/24/2022]
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Karimi H, Mahdavi S, Asgari Lajayer B, Moghiseh E, Rajput VD, Minkina T, Astatkie T. Insights on the bioremediation technologies for pesticide-contaminated soils. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:1329-1354. [PMID: 34476637 DOI: 10.1007/s10653-021-01081-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
The fast pace of increasing human population has led to enhanced crop production, due to which a significant increase in the application of pesticides has been recorded worldwide. Following the enhancement in the utilization of pesticides, the degree of environmental pollution, particularly soil pollution, has increased. To address this challenge, different methods of controlling and eliminating such contaminants have been proposed. Various methods have been reported to eradicate or reduce the degree of contamination of pesticides in the soil. Several factors are crucial for soil contamination, including pH, temperature, the number, and type/nature of soil microorganisms. Among the accessible techniques, some of them respond better to contamination removal. One of these methods is bioremediation, and it is one of the ideal solutions for pollution reduction. In this innovative technique, microorganisms are utilized to decompose environmental pollutants or to curb pollution. This paper gives detailed insight into various strategies used for the reduction and removal of soil pollution.
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Affiliation(s)
- Hoda Karimi
- Environmental Science Department, Research Institute for Grapes and Raisin (RIGR), Malayer University, Malayer, Iran
| | - Shahriar Mahdavi
- Department of Soil Science, Faculty of Agriculture, Malayer University, Malayer, Iran
| | - Behnam Asgari Lajayer
- Health and Environment Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Ebrahim Moghiseh
- Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute, Karaj, Iran
| | - Vishnu D Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Stachki 194/1, Rostov-on-Don, Russia, 344090
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Stachki 194/1, Rostov-on-Don, Russia, 344090
| | - Tess Astatkie
- Faculty of Agriculture, Dalhousie University, Truro, NS, B2N 5E3, Canada.
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Bhat VG, Narasagoudr SS, Masti SP, Chougale RB, Vantamuri AB, Kasai D. Development and evaluation of Moringa extract incorporated Chitosan/Guar gum/Poly (vinyl alcohol) active films for food packaging applications. Int J Biol Macromol 2022; 200:50-60. [PMID: 34973266 DOI: 10.1016/j.ijbiomac.2021.12.116] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/11/2021] [Accepted: 12/18/2021] [Indexed: 11/05/2022]
Abstract
The present study contributes the synthesis of active films with the incorporation of moringa extract (ME) into chitosan (CS)/guar gum (GG)/poly(vinyl alcohol) (PVA) matrix (CGPM) by simple solvent casting technique. The effect of ME on the mechanical, thermal, structural and morphological properties of CGPM active films were investigated. ME has shown a marked influence on the optical, thermal properties and swelling behaviour of CGPM active films. The improvement in the tensile strength of CGPM-1 active film (53.7 MPa) was observed compared to control CS/GG/PVA (CGP) film. DSC study revealed that glass transition temperature (Tg) and melting temperature (Tm) decreased with the addition of ME in the CGP matrix, which confirmed the miscibility among the components of active films. There was an improvement in the thermal stability of the CGPM active films. The FTIR study confirmed the molecular interaction between ME and CS/GG/PVA matrix. The XRD analysis showed a decrease in crystallinity with an increase in the ratio of CS for CGPM active films. The CGPM active films were an excellent barrier to UV- light and have exhibited a decrease in moisture adsorption and water solubility compared to CGP control film. The inclusion of ME in the CGP matrix leads to the formation of a dense compact surface, which in turn enhanced hydrophobicity of active films. The CGPM active films showed minimum WVP, OP values and overall migration values were within the limits of 10 mg/dm2. It was also observed that CGPM active films effectively inhibited the growth of E. coli and S. aureus bacteria. These findings suggest CGPM active films are biodegradable, biocompatible, non-toxic and hence can find application as food packaging materials.
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Affiliation(s)
- Veena G Bhat
- Department of Chemistry, Karnatak Science College, Dharwad 580 001, Karnataka, India
| | | | - Saraswati P Masti
- Department of Chemistry, Karnatak Science College, Dharwad 580 001, Karnataka, India.
| | - Ravindra B Chougale
- Post-Graduate Department of Chemistry, Karnatak University, Dharwad 580 003, Karnataka, India
| | - Adiveppa B Vantamuri
- Department of Biotechnology, Karnatak Science College, Dharwad 580 001, Karnataka, India
| | - Deepak Kasai
- Department of Chemistry, Faculty of Engineering and Technology, Jain (Deemed-to-be University), Bangalore, India
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Toader G, Pulpea D, Rotariu T, Diacon A, Rusen E, Moldovan A, Podaru A, Ginghină R, Alexe F, Iorga O, Bajenaru SA, Ungureanu M, Dîrloman F, Pulpea B, Leonat L. Strippable Polymeric Nanocomposites Comprising "Green" Chelates, for the Removal of Heavy Metals and Radionuclides. Polymers (Basel) 2021; 13:4194. [PMID: 34883697 PMCID: PMC8659526 DOI: 10.3390/polym13234194] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022] Open
Abstract
The issue of heavy metal and radionuclide contamination is still causing a great deal of concern worldwide for environmental protection and industrial sites remediation. Various techniques have been developed for surface decontamination aiming for high decontamination factors (DF) and minimal environmental impact, but strippable polymeric nanocomposite coatings are some of the best candidates in this area. In this study, novel strippable coatings for heavy metal and radionuclides decontamination were developed based on the film-forming ability of polyvinyl alcohol, with the remarkable metal retention capacity of bentonite nanoclay, together with the chelating ability of sodium alginate and with "new-generation" "green" complexing agents: iminodisuccinic acid (IDS) and 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC). These environmentally friendly water-based decontamination solutions are capable of generating strippable polymeric films with optimized mechanical and thermal properties while exhibiting high decontamination efficiency (DF ≈ 95-98% for heavy metals tested on glass surface and DF ≈ 91-97% for radionuclides 241Am, 90Sr-Y and 137Cs on metal, painted metal, plastic, and glass surfaces).
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Affiliation(s)
- Gabriela Toader
- Military Technical Academy “Ferdinand I”, 39–49 George Coșbuc Boulevard, 050141 Bucharest, Romania; (G.T.); (D.P.); (A.M.); (A.P.); (M.U.); (F.D.); (B.P.)
| | - Daniela Pulpea
- Military Technical Academy “Ferdinand I”, 39–49 George Coșbuc Boulevard, 050141 Bucharest, Romania; (G.T.); (D.P.); (A.M.); (A.P.); (M.U.); (F.D.); (B.P.)
| | - Traian Rotariu
- Military Technical Academy “Ferdinand I”, 39–49 George Coșbuc Boulevard, 050141 Bucharest, Romania; (G.T.); (D.P.); (A.M.); (A.P.); (M.U.); (F.D.); (B.P.)
| | - Aurel Diacon
- Faculty of Applied Chemistry and Materials Science, University ‘Politehnica’ of Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Edina Rusen
- Faculty of Applied Chemistry and Materials Science, University ‘Politehnica’ of Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Andreea Moldovan
- Military Technical Academy “Ferdinand I”, 39–49 George Coșbuc Boulevard, 050141 Bucharest, Romania; (G.T.); (D.P.); (A.M.); (A.P.); (M.U.); (F.D.); (B.P.)
| | - Alice Podaru
- Military Technical Academy “Ferdinand I”, 39–49 George Coșbuc Boulevard, 050141 Bucharest, Romania; (G.T.); (D.P.); (A.M.); (A.P.); (M.U.); (F.D.); (B.P.)
| | - Raluca Ginghină
- Research and Innovation Center for CBRN Defense and Ecology, 225 Soseaua Oltenitei, 041327 Bucharest, Romania; (R.G.); (F.A.); (O.I.); (S.A.B.)
| | - Florentina Alexe
- Research and Innovation Center for CBRN Defense and Ecology, 225 Soseaua Oltenitei, 041327 Bucharest, Romania; (R.G.); (F.A.); (O.I.); (S.A.B.)
| | - Ovidiu Iorga
- Research and Innovation Center for CBRN Defense and Ecology, 225 Soseaua Oltenitei, 041327 Bucharest, Romania; (R.G.); (F.A.); (O.I.); (S.A.B.)
| | - Sorina Aurora Bajenaru
- Research and Innovation Center for CBRN Defense and Ecology, 225 Soseaua Oltenitei, 041327 Bucharest, Romania; (R.G.); (F.A.); (O.I.); (S.A.B.)
| | - Mihai Ungureanu
- Military Technical Academy “Ferdinand I”, 39–49 George Coșbuc Boulevard, 050141 Bucharest, Romania; (G.T.); (D.P.); (A.M.); (A.P.); (M.U.); (F.D.); (B.P.)
| | - Florin Dîrloman
- Military Technical Academy “Ferdinand I”, 39–49 George Coșbuc Boulevard, 050141 Bucharest, Romania; (G.T.); (D.P.); (A.M.); (A.P.); (M.U.); (F.D.); (B.P.)
| | - Bogdan Pulpea
- Military Technical Academy “Ferdinand I”, 39–49 George Coșbuc Boulevard, 050141 Bucharest, Romania; (G.T.); (D.P.); (A.M.); (A.P.); (M.U.); (F.D.); (B.P.)
| | - Lucia Leonat
- National Institute of Materials Physics, 077125 Măgurele, Romania;
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İnan B, Özçimen D. Preparation and characterization of microalgal oil loaded alginate/poly (vinyl alcohol) electrosprayed nanoparticles. FOOD AND BIOPRODUCTS PROCESSING 2021. [DOI: 10.1016/j.fbp.2021.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Kianfar S, Keshtkar AR, Zarenezhad B. Graft polymerization of acrylonitrile onto cross-linked (alginate/polyvinyl alcohol) beads initiated by potassium persulfate: synthesis and artificial neural network modeling. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03106-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Cáceres D, Giménez B, Márquez-Ruiz G, Holgado F, Vergara C, Romero-Hasler P, Soto-Bustamante E, Robert P. Influence of the Location of Ascorbic Acid in Walnut Oil Spray-Dried Microparticles with Outer Layer on the Physical Characteristics and Oxidative Stability. Antioxidants (Basel) 2020; 9:E1272. [PMID: 33327590 PMCID: PMC7765012 DOI: 10.3390/antiox9121272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 11/28/2020] [Accepted: 12/05/2020] [Indexed: 11/16/2022] Open
Abstract
Purified walnut oil (PWO) microparticles with Capsul® (C, encapsulating agent), sodium alginate (SA) as outer layer and ascorbic acid (AA) as oxygen scavenger were obtained by spray drying using a three-fluid nozzle. AA was incorporated in the inner infeed (PWO-C(AA)/SA), in the outer infeed (PWO-C/SA(AA)) and in both infeed (PWO-C(AA)/SA(AA)). PWO-C(AA)/SA (4.56 h) and POW-C(AA)/SA(AA) (2.60 h) microparticles showed higher induction period than POW-C/SA(AA) (1.17 h), and lower formation of triacylglycerol dimers and polymers during storage (40 °C). Therefore, AA located in the inner infeed improved the oxidative stability of encapsulated PWO by removing the residual oxygen. AA in the SA outer layer did not improve the oxidative stability of encapsulated PWO since oxygen diffusion through the microparticles was limited and/or AA weakened the SA layer structure. The specific-location of AA (inner infeed) is a strategy to obtain stable spray-dried polyunsaturated oil-based microparticles for the design of foods enriched with omega-3 fatty acids.
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Affiliation(s)
- Denisse Cáceres
- Departamento de Ciencia de los Alimentos y Tecnología Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile;
| | - Begoña Giménez
- Departamento de Ciencia y Tecnología de los Alimentos, Facultad Tecnológica, Universidad de Santiago de Chile, Av. Ecuador 3769, Estación Central, Santiago 9170124, Chile;
| | - Gloria Márquez-Ruiz
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN-CSIC), José Antonio Nováis 10, 28040 Madrid, Spain; (G.M.-R.); (F.H.)
| | - Francisca Holgado
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN-CSIC), José Antonio Nováis 10, 28040 Madrid, Spain; (G.M.-R.); (F.H.)
| | - Cristina Vergara
- Instituto de Investigaciones Agropecuarias, INIA La Platina, Santiago Chile, Av. Santa Rosa 11610, La Pintana, Santiago 8831314, Chile;
| | - Patricio Romero-Hasler
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile; (P.R.-H.); (E.S.-B.)
| | - Eduardo Soto-Bustamante
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile; (P.R.-H.); (E.S.-B.)
| | - Paz Robert
- Departamento de Ciencia de los Alimentos y Tecnología Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile;
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17
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Baigorria E, Cano LA, Sanchez LM, Alvarez VA, Ollier RP. Bentonite-composite polyvinyl alcohol/alginate hydrogel beads: Preparation, characterization and their use as arsenic removal devices. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.enmm.2020.100364] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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18
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Significantly improve the water and chemicals resistance of alginate-based nanocomposite films by a simple in-situ surface coating approach. Int J Biol Macromol 2020; 156:1297-1307. [PMID: 31759999 DOI: 10.1016/j.ijbiomac.2019.11.168] [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: 10/02/2019] [Revised: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 11/24/2022]
Abstract
Biopolymers have shown great application prospects due to their advantages of being biodegradable, renewable, non-toxic, safe and inexpensive. However, the innate hydrophilicity of biopolymers means the materials prepared from them easily swell or disintegrate in aqueous media, limiting their applications. Herein, on the basis of improving the mechanical performance of a sodium alginate/poly(vinyl alcohol) (SA/PVA) film by introducing palygorskite (Pal) nanorods, the hydrophobicity of the obtained SA/PVA/Pal film was improved further by surface coating with methyltrichlorosilane (MTCS) through a vapor deposition-surface polycondensation reaction. MTCS nanofilaments, with a size of approximately 50 nm, were formed on the film surface by the silanization reaction between MTCS and hydroxyls, resulting in an improvement in surface hydrophobicity characterized by a contact angle (111.8°) higher than that of SA/PVA/Pal film (72.7°). Therefore, the obtained films maintained their original shape and strength after soaking for a long time in aqueous solutions containing acid, alkaline, and electrolyte, also in organics, while the uncoated film dissolved quickly and lost its original shape. Moreover, the surface coating also increased the film's tensile strength from 11.43 to 28.69 MPa. This demonstrates a simple, universal and effective way to improve the resistance of biopolymer-derived materials to water and various chemicals.
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19
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Rashtchian M, Hivechi A, Bahrami SH, Milan PB, Simorgh S. Fabricating alginate/poly(caprolactone) nanofibers with enhanced bio-mechanical properties via cellulose nanocrystal incorporation. Carbohydr Polym 2020; 233:115873. [DOI: 10.1016/j.carbpol.2020.115873] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/11/2020] [Accepted: 01/13/2020] [Indexed: 01/31/2023]
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20
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Qiu K, Young I, Woodburn BM, Huang Y, Anselmo AC. Polymeric Films for the Encapsulation, Storage, and Tunable Release of Therapeutic Microbes. Adv Healthc Mater 2020; 9:e1901643. [PMID: 32080981 PMCID: PMC7293827 DOI: 10.1002/adhm.201901643] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 01/27/2020] [Indexed: 12/12/2022]
Abstract
Microbe-based therapeutics (MBTs) are an emerging therapeutic modality for treating gastrointestinal infections and inflammatory bowel diseases. Current formulations for oral delivery of MBTs use capsules to achieve safe gastric transit, but oral formulations that control the spatiotemporal concentration of MBTs are yet to be developed, despite well-established connections between all therapeutics and their location, concentration, and distribution at sites of action. The development of a multi-functional polymer-based encapsulation system to formulate MBTs for enhanced storage and delivery through formulation of a model MBT, Lactobacillus casei ATCC393, is reported here. This approach enables the additive inclusion of excipients and polymers to grant specific functions, toward the development of a modular MBT platform. Through addition of established excipients, the formulation provides long-term storage of the encapsulated MBT. By adding higher molecular weight polymers, the release kinetics of the encapsulated MBTs can be modified. The inclusion of a mucoadhesive polymer significantly increases the adhesion force between the formulation and the intestinal tissue. Together, mucoadhesive and sustained release properties can be used to modulate the spatiotemporal concentration of MBTs. The formulation is compatible with standard oral capsules, thus maintaining existing clinical advantages of oral capsules while providing new functions from film encapsulation.
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Affiliation(s)
- Kunyu Qiu
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Isabella Young
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Blaide M. Woodburn
- Department of Pharmacology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Yirui Huang
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Aaron C. Anselmo
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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21
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Bacterial Cellulose-Alginate Composite Beads as Yarrowia lipolytica Cell Carriers for Lactone Production. Molecules 2020; 25:molecules25040928. [PMID: 32093025 PMCID: PMC7070387 DOI: 10.3390/molecules25040928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/09/2020] [Accepted: 02/13/2020] [Indexed: 01/22/2023] Open
Abstract
The demand for natural lactone gamma-decalactone (GDL) has increased in the fields of food and cosmetic products. However, low productivity during bioprocessing limits its industrial production. In this study, a novel composite porous cell carrier, bacterial cellulose-alginate (BC-ALG), was used for long-term biotransformation and production of GDL. The effects of this carrier on biotransformation and related mechanisms were investigated. BC-ALG carriers showed improved mechanical strength over ALG carriers, with their internal embedded cell pattern changed to an interconnected porous structure. In five repeated-batch biotransformation experiments, the maximum concentration of GDL obtained in culture with BC-ALG carriers was 8.37 g/L, approximately 3.7 times higher than that from the medium with an ALG carrier alone. The result indicated that multiple hydrogen bonding interactions at the interface between BC and ALG contributed to the compatibility and stability of BC-ALG carriers. On the basis of the above results, the BC-ALG composite carrier can be considered ideal for immobilisation of cells for the production of GDL on an industrial scale, and has the potential to be utilised in other biological processes.
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22
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Yang M, Li L, Yu S, Liu J, Shi J. High performance of alginate/polyvinyl alcohol composite film based on natural original melanin nanoparticles used as food thermal insulating and UV-vis block. Carbohydr Polym 2020; 233:115884. [PMID: 32059915 DOI: 10.1016/j.carbpol.2020.115884] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/07/2020] [Accepted: 01/14/2020] [Indexed: 01/11/2023]
Abstract
Light is a major factor in promoting food aging and deterioration, especially for ultraviolet (UV) light. Herein, bioinspired dopamine-melanin solid nanoparticles with strong absorption at a wide range of 200-2500 nm were first incorporated into alginate/polyvinyl alcohol to fabricate film materials in this work for UV-vis block, and this also brings excellent thermal insulating properties to the materials. In addition, in order to obtain a material with excellent performance, particles of uniform size of about 100 nm are obtained by fractional centrifugation. It was found the mechanical, UV-vis block and thermal insulating properties were improved significantly compared with the control samples. This study provides a strategy to design a non-polluting, biodegradable, biocompatible film with excellent mechanical properties that can be used in UV-vis barriers and has potential applications in thermal insulating materials for food preservation.
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Affiliation(s)
- Manli Yang
- College of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao, 266109, PR China; State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, PR China
| | - Lin Li
- College of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Shuguang Yu
- College of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Jiawei Liu
- College of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Jinsheng Shi
- College of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao, 266109, PR China.
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23
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Kaur P, Gondil VS, Chhibber S. A novel wound dressing consisting of PVA-SA hybrid hydrogel membrane for topical delivery of bacteriophages and antibiotics. Int J Pharm 2019; 572:118779. [DOI: 10.1016/j.ijpharm.2019.118779] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/05/2019] [Accepted: 10/08/2019] [Indexed: 12/18/2022]
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24
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Wang H, Li J, Liu F, Li T, Zhong Y, Lin H, He J. Enhanced hemocompatibility of flat and hollow fiber membranes via a heparin free surface crosslinking strategy. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.01.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Yang M, Shi J, Xia Y. Effect of SiO2, PVA and glycerol concentrations on chemical and mechanical properties of alginate-based films. Int J Biol Macromol 2018; 107:2686-2694. [DOI: 10.1016/j.ijbiomac.2017.10.162] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 09/12/2017] [Accepted: 10/25/2017] [Indexed: 10/18/2022]
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26
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Dutra J, Carvalho S, Zampirolli A, Daltoé R, Teixeira R, Careta F, Cotrim M, Oréfice R, Villanova J. Papain wound dressings obtained from poly(vinyl alcohol)/calcium alginate blends as new pharmaceutical dosage form: Preparation and preliminary evaluation. Eur J Pharm Biopharm 2017; 113:11-23. [DOI: 10.1016/j.ejpb.2016.12.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 11/27/2016] [Accepted: 12/06/2016] [Indexed: 11/16/2022]
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27
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Kumar A, Jaiswal M. Design andin vitroinvestigation of nanocomposite hydrogel basedin situspray dressing for chronic wounds and synthesis of silver nanoparticles using green chemistry. J Appl Polym Sci 2015. [DOI: 10.1002/app.43260] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Arun Kumar
- Department of Pharmacy; Jaypee University of Information Technology (JUIT); Waknaghat Solan, Himachal Pradesh 173234 India
| | - Maneesh Jaiswal
- Department of Pharmacy; Jaypee University of Information Technology (JUIT); Waknaghat Solan, Himachal Pradesh 173234 India
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28
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Amri C, Mudasir M, Siswanta D, Roto R. In vitro hemocompatibility of PVA-alginate ester as a candidate for hemodialysis membrane. Int J Biol Macromol 2015; 82:48-53. [PMID: 26459169 DOI: 10.1016/j.ijbiomac.2015.10.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/18/2015] [Accepted: 10/07/2015] [Indexed: 11/24/2022]
Abstract
Alginate based biopolymer with improved physical and chemical properties after esterification using polyvinyl alcohol (PVA) has been studied for possible application as a hemodialysis membrane. The alginic acid to vinyl alcohol molar ratio was predetermined at 0, 0.1, 0.5 and 1. Mechanical strength, hydrophilicity and Ca(2+) adsorption of the membrane before and after modification were evaluated. The obtained PVA-alginate (PVA-Alg) ester membrane was also confirmed using FTIR and SEM. It shows that the PVA-Alg membrane tensile strength is higher than that of native alginate. The water contact angle of the membrane was found to be around 33-50°. The Ca(2+) adsorption capacity tends to decrease with the increase in molar ratio. Furthermore, the modified PVA-Alg ester membrane achieves better protein adsorption and platelet adhesion than the unmodified one. It also exhibits a dialysis performance of 47.1-50.0% for clearance of urea and 42.2-44.6% for clearance of creatinine, respectively. It is expected that this PVA-Alg ester may challenge cellulose acetate for potential application as hemodialysis membranes.
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Affiliation(s)
- Choirul Amri
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia.
| | - Mudasir Mudasir
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
| | - Dwi Siswanta
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
| | - Roto Roto
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
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29
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Eghbalifam N, Frounchi M, Dadbin S. Antibacterial silver nanoparticles in polyvinyl alcohol/sodium alginate blend produced by gamma irradiation. Int J Biol Macromol 2015; 80:170-6. [PMID: 26123816 DOI: 10.1016/j.ijbiomac.2015.06.042] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 06/15/2015] [Accepted: 06/20/2015] [Indexed: 01/03/2023]
Abstract
Polyvinyl alcohol/sodium alginate/nano silver (PVA/SA/Ag) composite films were made by solution casting method. Gamma irradiation was used to synthesize silver nanoparticles in situ via reduction of silver nitrate without using harmful chemical agents for biomedical applications. UV-vis and XRD results demonstrated that spherical silver nanoparticles were produced even at low irradiation dose of 5 kGy. By increasing irradiation dose, more nanoparticles were synthesized while no PVA hydrogel was formed up to 15 kGy. Also the size of nanoparticles was reduced with increasing gamma dose evidenced by higher release rate of silver nanoparticles in lukewarm water and SEM images. Comparing SEM images with DLS results indicated good performance of PVA/SA as an efficient stabilizer in preventing agglomeration of the silver nanoparticles. Good miscibility of polyvinyl alcohol and sodium alginate observed on the SEM images was supported with FTIR spectroscopy. Upon addition of sodium alginate to polyvinyl alcohol and increasing silver nanoparticles, the melting peak shifted to lower temperature and crystallinity percent was decreased. Addition of sodium alginate led to remarkable increase in rigidity of PVA. The composites exhibited strong antibacterial activity against Staphylococcus aureus and Escherichia coli even at very low level of silver nanoparticles.
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Affiliation(s)
- Naeimeh Eghbalifam
- Sharif University of Technology, Department of Chemical and Petroleum Engineering, Tehran, Iran
| | - Masoud Frounchi
- Sharif University of Technology, Department of Chemical and Petroleum Engineering, Tehran, Iran.
| | - Susan Dadbin
- Radiation Applications Research School, Nuclear Science and Technology Research Institute, North Kargar Street, Tehran, Iran
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30
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Arthanari S, Mani G, Jang JH, Choi JO, Cho YH, Lee JH, Cha SE, Oh HS, Kwon DH, Jang HT. Preparation and characterization of gatifloxacin-loaded alginate/poly (vinyl alcohol) electrospun nanofibers. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2014; 44:847-52. [PMID: 25510448 DOI: 10.3109/21691401.2014.986676] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this study was to develop novel biomedicated electrospun nanofibers for controlled release. Pre-formulation studies were carried out for nanofibers of sodium alginate (SA) (2 wt %)/polyvinyl alcohol (PVA) (10 wt %) composites (2/8, 3/7 and 4/6), by an electrospinning technique. The morphology and average diameter of the nanofibers were investigated by scanning electron microscopy (SEM). The optimum ratio (3/7) was used to load gatifloxacin hydrochloride (GH) (1wt %), found to form smooth fibers with uniform structures. The drug entrapment in the composite nanofibers was confirmed by SEM, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermo gravimetric analysis (TGA), differential scanning calorimetry (DSC), and swelling behavior. The drug release behavior was investigated using phosphate-buffered saline (PBS) (pH 7.4) at 37°C for 24 h. The XRD and FTIR data demonstrate that there are good interactions between PVA and SA, possibly caused by hydrogen bonds. As much as 90% of the GH was released from the electrospun fibers within 6 h of incubation. Beyond this, the release was sustained for 24 h. The thickness of nanofibers greatly influenced the initial release and rate of drug release. Moreover, GH-loaded sodium alginate/PVA composite nanofibers exhibited a useful and convenient method for electrospinning in order to control the rate and period of drug release in wound-healing applications.
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Affiliation(s)
| | - Ganesh Mani
- a Department of Chemical Engineering , Hanseo University , Chungcheongnam-Do , South Korea
| | - Jun Ho Jang
- c Seoryeong High School , Chungcheongnam-Do , South Korea
| | - Je O Choi
- c Seoryeong High School , Chungcheongnam-Do , South Korea
| | - Yun Ho Cho
- c Seoryeong High School , Chungcheongnam-Do , South Korea
| | | | - Seung Eun Cha
- b Hanseo Regional Innovation Center, Hanseo University , Chungcheongnam-Do , South Korea.,e Department of Business Administration , Sungkyunkwan University , Seoul , South Korea
| | - Han Seok Oh
- a Department of Chemical Engineering , Hanseo University , Chungcheongnam-Do , South Korea
| | - Deok Han Kwon
- c Seoryeong High School , Chungcheongnam-Do , South Korea
| | - Hyun Tae Jang
- a Department of Chemical Engineering , Hanseo University , Chungcheongnam-Do , South Korea.,b Hanseo Regional Innovation Center, Hanseo University , Chungcheongnam-Do , South Korea
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Sheela T, Bhajantri R, Ravindrachary V, Rathod SG, Pujari P, Poojary B, Somashekar R. Effect of UV irradiation on optical, mechanical and microstructural properties of PVA/NaAlg blends. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2014.05.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Preparation of PAM/PVA blending films by solution-cast technique and its characterization: a spectroscopic study. IRANIAN POLYMER JOURNAL 2013. [DOI: 10.1007/s13726-013-0211-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ranjbar-Mohammadi M, Bahrami SH, Joghataei M. Fabrication of novel nanofiber scaffolds from gum tragacanth/poly(vinyl alcohol) for wound dressing application: In vitro evaluation and antibacterial properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4935-43. [DOI: 10.1016/j.msec.2013.08.016] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Revised: 07/01/2013] [Accepted: 08/13/2013] [Indexed: 11/28/2022]
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Kirdponpattara S, Phisalaphong M. Bacterial cellulose–alginate composite sponge as a yeast cell carrier for ethanol production. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2013.05.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mishra R, Kumar A. Inorganic/Organic Biocomposite Cryogels for Regeneration of Bony Tissues. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:2107-26. [DOI: 10.1163/092050610x534230] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Ruchi Mishra
- a Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, 208016-Kanpur, India
| | - Ashok Kumar
- b Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, 208016-Kanpur, India.
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Gopishetty V, Tokarev I, Minko S. Biocompatible stimuli-responsive hydrogel porous membranes via phase separation of a polyvinyl alcohol and Na-alginate intermolecular complex. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31778h] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Palmer D, Levina M, Nokhodchi A, Douroumis D, Farrell T, Rajabi-Siahboomi A. The influence of sodium carboxymethylcellulose on drug release from polyethylene oxide extended release matrices. AAPS PharmSciTech 2011; 12:862-71. [PMID: 21710334 DOI: 10.1208/s12249-011-9648-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Accepted: 06/10/2011] [Indexed: 11/30/2022] Open
Abstract
Anionic polymer sodium carboxymethylcellulose (CELLOGEN® HP-HS and/or HP-12HS) was investigated for its ability to influence the release of three model drugs propranolol hydrochloride, theophylline and ibuprofen from polyethylene oxide (POLYOX™ WSR 1105 and/or Coagulant) hydrophilic matrices. For anionic ibuprofen and non-ionic theophylline, no unusual/unexpected release profiles were obtained from tablets containing a mixture of two polymers. However, for cationic propranolol HCl, a combination of polyethylene oxide (PEO) with sodium carboxymethylcellulose (NaCMC) produced a significantly slower drug release compared to the matrices with single polymers. The potential use of this synergistic interaction can be a design of new extended release pharmaceutical dosage forms with a more prolonged release (beyond 12 h) using lower polymer amount, which could be particularly beneficial for freely water-soluble drugs, preferably for once daily oral administration. In order to explain changes in the obtained drug release profiles, Fourier transform infrared absorption spectroscopy was performed. A possible explanation for the more prolonged propranolol HCl release from matrices based on both PEO and NaCMC may be due to a chemical bond (i.e. ionic/electrostatic intermolecular interaction) between amine group of the cationic drug and carboxyl group of the anionic polymer, leading to a formation of a new type/form of the active (i.e. salt) with sustained release pattern.
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Chen Y, Cao X, Chang PR, Huneault MA. Comparative study on the films of poly(vinyl alcohol)/pea starch nanocrystals and poly(vinyl alcohol)/native pea starch. Carbohydr Polym 2008. [DOI: 10.1016/j.carbpol.2007.10.015] [Citation(s) in RCA: 230] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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