In the present work, the novel dense and supported membranes based on polyvinyl alcohol (PVA) with improved transport properties were developed by bulk and surface modifications. Bulk modification included the blending of PVA with chitosan (CS) and the creation of a mixed-matrix membrane by introduction of fullerenol. This significantly altered the internal structure of PVA membrane, which led to an increase in permeability with high selectivity to water. Surface modification of the developed modified dense membranes, based on composites PVA-CS and PVA-fullerenol-CS, was performed through (i) making of a supported membrane with a thin selective composite layer and (ii) applying of the layer-by-layer assembly (LbL) method for coating of nano-sized polyelectrolyte (PEL) layers to increase the membrane productivity. The nature of polyelectrolyte type-(poly(allylamine hydrochloride) (PAH), poly(sodium 4-styrenesulfonate) (PSS), poly(acrylic acid) (PAA), CS), and number of PEL bilayers (2⁻10)-were studied. The structure of the composite membranes was investigated by FTIR, X-ray diffraction, and SEM. Transport properties were studied during the pervaporation separation of 80% isopropanol⁻20% water mixture. It was shown that supported membrane consisting of hybrid layer of PVA-fullerenol (5%)⁻chitosan (20%) with five polyelectrolyte bilayers (PSS, CS) deposited on it had the best transport properties.
Related researches 71 articles
![<strong>Exploring the World of Fullerenols: A Deep Dive into Their Potential Medical Use</strong>](https://biofullerene.com/wp-content/uploads/2024/03/20-years-research-help-with-oncology-356x356.webp)
![Fullerenol has pronounced antiradical properties in the working concentration range](https://biofullerene.com/wp-content/uploads/2023/06/2021-se-rdm-molecules-all-312x356.png)
![The transcriptome profile of RPE cells by the fullerenol against hydrogen peroxide stress](https://biofullerene.com/wp-content/uploads/2022/12/antioxidant-vector-icon-radical-free-260nw-1596766771.jpg)
![Toxicity and Antioxidant Activity of Fullerenol C<sub>60,70</sub> with Low Number of Oxygen Substituents](https://biofullerene.com/wp-content/uploads/2022/12/antioxidant-vector-icon-radical-free-260nw-1596766771.jpg)
![Exploiting the physicochemical properties of dendritic polymers for environmental and biological applications](https://biofullerene.com/wp-content/uploads/2022/12/678-6786008_software-418x356.png)
![Impacts of fullerene derivatives on regulating the structure and assembly of collagen molecules](https://biofullerene.com/wp-content/uploads/2022/12/istockphoto-12085167-356x356.jpg)
![INHIBITORY POTENTIAL OF POLYHYDROXYLATED FULLERENES AGAINST PROTEIN TYROSINE PHOSPHATASE 1B](https://biofullerene.com/wp-content/uploads/2022/12/sol5379-356x356.jpg)
![The neuroprotective effect of fullerenols on a model of Parkinson’s disease in Drosophila melanogaster](https://biofullerene.com/wp-content/uploads/2022/12/PCORI-Story-Women-Pa-314x356.png)
![Effect of fullerenol nanoparticles on oxidative stress induced by paraquat in honey bees](https://biofullerene.com/wp-content/uploads/2022/12/1471354356_medonosny-1-500x293.jpg)
![Facile synthesis of highly water-soluble fullerenes more than half-covered by hydroxyl groups](https://biofullerene.com/wp-content/uploads/2022/12/360_F_308785794_MbgN-500x228.jpg)
![Interaction of fullerenol with lysozyme investigated by experimental and computational approaches](https://biofullerene.com/wp-content/uploads/2022/12/png-clipart-biomolec-500x284.png)
![Effects of hydroxyl group distribution on the reactivity, stability and optical properties of fullerenols](https://biofullerene.com/wp-content/uploads/2022/12/unnamed_1-500x349.jpg)
![Facile synthesis of isomerically pure fullerenols and formation of spherical aggregates from C60(OH)8](https://biofullerene.com/wp-content/uploads/2022/12/images.jpg)
![Influences of the size and hydroxyl number of fullerenes/fullerenols on their interactions with proteins](https://biofullerene.com/wp-content/uploads/2022/12/protein-3jpg57eb1785-356x356.jpg)
![The properties of small fullerenol cluster (C60(OH)24)7: computer simulation](https://biofullerene.com/wp-content/uploads/2022/12/unnamed-3-500x257.jpg)
![The structural studies of fullerenol C60(OH)24 and nitric oxide mixture in water solvent – MD simulation](https://biofullerene.com/wp-content/uploads/2022/12/n-a.jpg)
![Production of monoclonal antibodies against fullerene C60 and development of a fullerene enzyme immunoassay](https://biofullerene.com/wp-content/uploads/2022/12/hd-antibody-blue-485x356.png)
![Mechanism of taq DNA polymerase inhibition by fullerene derivatives: insight from computer simulations](https://biofullerene.com/wp-content/uploads/2022/12/1412-356x356.jpg)
![Polyhydroxylated C60 fullerene (fullerenol) attenuates neutrophilic lung inflammation in mice](https://biofullerene.com/wp-content/uploads/2022/12/11588808685cy47cvm6-412x356.png)
![Morphologically virus-like fullerenol nanoparticles act as the dual-functional nanoadjuvant for HIV-1 vaccine](https://biofullerene.com/wp-content/uploads/2022/12/hiv-356x356.png)
![Fullerenol C₆₀(OH)₃₆ could associate to band 3 protein of human erythrocyte membranes](https://biofullerene.com/wp-content/uploads/2022/12/1043132-356x356.png)
![Synthesis and Characterization of Hydroxyapatite/Fullerenol Nanocomposites](https://biofullerene.com/wp-content/uploads/2022/12/medicircle-nanomedic-500x281.jpg)
![Investigation of work of adhesion of biological cell (human hepatocellular carcinoma) by AFM nanoindentation](https://biofullerene.com/wp-content/uploads/2022/12/investigation-2-500x333.jpg)
![Self-assembling, reactivity and molecular dynamics of fullerenol nanoparticles](https://biofullerene.com/wp-content/uploads/2022/12/240fed07347d44de5685-356x356.png)
![Fullerenol C60(OH)24 increases ion permeability of lipid membranes in a pH-dependent manner](https://biofullerene.com/wp-content/uploads/2022/12/image3-358x356.png)
![Novel green PVA-fullerenol mixed matrix supported membranes for separating water-THF mixtures by pervaporation](https://biofullerene.com/wp-content/uploads/2022/12/istockphoto-12085167-356x356.jpg)
![Inhalable gadofullerenol/[70] fullerenol as high-efficiency ROS scavengers for pulmonary fibrosis therapy](https://biofullerene.com/wp-content/uploads/2022/12/istockphoto-12925559-440x356.jpg)
![Increasing the Resistance of Living Cells against Oxidative Stress by Nonnatural Surfactants as Membrane Guards](https://biofullerene.com/wp-content/uploads/2022/12/pngtree-an-icon-sign-356x356.jpg)
![Fullerenol C 60(OH) 36 protects human erythrocyte membrane against high-energy electrons](https://biofullerene.com/wp-content/uploads/2022/12/1-14308-500x281.jpg)
![Molecular Semiconductor Surfactants with Fullerenol Heads and Colored Tails for Carbon Dioxide Photoconversion](https://biofullerene.com/wp-content/uploads/2022/12/71092153-fe1fb500-21-500x343.png)
![Fullerenol Nanoparticles Eradicate Helicobacter pylori via pH-Responsive Peroxidase Activity](https://biofullerene.com/wp-content/uploads/2022/11/701f0ea8629699ea4b87-500x333.jpg)