Influence of structure 3,5,7,3′,4′–Pentahydroxyflavone-based polymer films on their optical transparency

Mishurov, Dmytro; Voronkin, Andrii; Roshal, Alexander D.; Bogatyrenko, S. I.

doi:10.1016/j.optmat.2016.12.004

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…Quercetin is a polyphenolic compound from the flavonoid group, so the phenolic and pyran rings in the quercetin structure determine the high absorbance observed for this organic molecule in the UV region. (Mishurov, Voronkin, Roshal, & Bogatyrenko, 2017).…”

Section: Light Transmission and Film Transparencymentioning

confidence: 99%

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Braga¹,

Pérez

Soazo

et al. 2019

LWT

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This work provides details regarding the physicochemical, antimicrobial and antioxidant properties of poly(vinyl chloride) (PVC)-based films containing 0.4% quercetin and silver nanoparticles (AgNPs) at various concentrations levels. The incorporation of quercetin and AgNPs into the PVC matrix considerably affected the thermal, mechanical and optical properties of the films. Results obtained from the tensile stresgth test, demonstrated an improvement in the mechanical strength of the films after the incorporation of both quercetin and AgNPs. Moreover, an increase in AgNPs concentration increased the rigidity, as compared to control PVC film. Antimicrobial activity against food pathogens (Escherichia coli, Salmonella Typhimurium and Listeria monocytogenes) was evaluated by an antimicrobial barrier test. Results showed that the PVC-based films with quercetin and AgNPs proved to be highly effective to inhibiting bacterial growth. Therefore, these results indicate promising evidence to possibly aid in the prevention of microbial dissemination in foods. Additionally, films incorporated with quercetin and AgNPs expressed an antioxidant capacity when evaluated via the DPPH method. Among all of the films evaluated, the PVC-based films containing 0.4% quercetin and 1% AgNPs were flexible, exhibiting excellent UV-light barrier properties and for use with fatty foods, with the intent of reducing lipid oxidation and preventing food pathogen dissemination.

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Section: Light Transmission and Film Transparencymentioning

confidence: 99%

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Braga¹,

Pérez

Soazo

et al. 2019

LWT

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“…These statements are explained in terms of the binding of QU to the hydrophobic pockets of lipid particles mainly through the hydrophobic force together with the hydrogen bonding. The hydrophobic binding of the aryl groups of QU to the hydrophobic pockets of liposome particles results in an increase of fluorescence intensity and anisotropy of QU [62], which was caused by the absorption ability of QU chromophore against UV light [63]. As reported by Bai et al (2019) [64] carboxymethyl chitosan-QU composite films showed much better UV-light barrier ability than carboxymethyl chitosan film, which was caused by the absorption ability of QU chromophore against UV light.…”

Section: Assessment Of Teac and The Percentage Loss Of Teac Against Uv Lightmentioning

confidence: 84%

Impact of Quercetin Encapsulation with Added Phytosterols on Bilayer Membrane and Photothermal-Alteration of Novel Mixed Soy Lecithin-Based Liposome

et al. 2020

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This study used highly lipophilic agents with an aim to increase the oxidant inhibitory activity and enhance photothermal stability of a novel mixed soy lecithin (ML)-based liposome by changing the composition of formulation within the membrane. Specifically, the development and optimization of the liposome intended for improving Trolox equivalent antioxidant capacity (TEAC) value and %TEAC loss was carried out by incorporating a natural antioxidant, quercetin (QU). In this context, a focus was set on QU encapsulation in ML-based liposomes and the concentration-dependent solubility of QU was investigated and calculated as encapsulation efficiency (EE). To explore the combined effects of the incorporation of plant sterols on the integrity and entrapment capacity of mixed phospholipid vesicles, conjugation of two types of phytosterols (PSs), namely β-sitosterol (βS) and stigmasterol (ST), to mixed membranes at different ratios was also performed. The EE measurement revealed that QU could be efficiently encapsulated in the stable ML-based liposome using 0.15 and 0.1 g/100 mL of βS and ST, respectively. The aforementioned liposome complex exhibited a considerable TEAC (197.23%) and enhanced TEAC loss (30.81%) when exposed to ultraviolet (UV) light (280–320 nm) over a 6 h duration. It appeared that the presence and type of PSs affect the membrane-integration characteristics as well as photodamage transformation of the ML-based liposome. The association of QU with either βS or ST in the formulation was justified by their synergistic effects on the enhancement of the EE of liposomes. Parallel to this, it was demonstrated that synergistic PS effects could be in effect in the maintenance of membrane order of the ML-based liposome. The findings presented in this study provided useful information for the development and production of stable QU-loaded ML-based liposomes for food and nutraceutical applications and could serve as a potential mixed lipids-based delivery system in the disease management using antioxidant therapy.

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“…The thickness of the studied polymer films was measured using a Linnik-type interference microscope MII-4. The Linnik interferometer configuration (a kind of Michelson configuration) was described in Mishurov et al's study 17 Calculations of the Mulliken charges on quercetin-8-sulfonic acid sodium salt chromophore fragments were carried out according to DFT theory 18 using the B3LYP functional 19 and cc-pVDZ basis sets 20,21 implemented in the GAUSSIAN 09 program package. 22 Synthesis of (3,5,7,3 0 ,4 0 -penthahydroxyflavon-8-sulfonic acid) sodium salt (NaQSA-8)…”

Section: Materials and Instrumentsmentioning

confidence: 99%

Nonlinear activity and long-term stability of thin polymer films based on poly(3,5,7,3^′,4^′-pentahydroxyflavone-8-sulfonic acid) sodium salt

Mishurov

Voronkin

Roshal

et al. 2022

Polymers and Polymer Composites

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Cross-linked polymers with chromophore fragments built-in main chains can, depending on their structure and synthesis conditions, keep during a long time the orientation of chromophores that is necessary to create new organic polymer materials demonstrating nonlinear optical properties. The present work is devoted to cross-linked polymers on the basis of di-, tri-, and tetraglycidyl ethers of quercetin-8-sulfonic acid sodium salt (3,5,7,3′,4′-penthahydroxyflavon-8-sulfonic acid sodium salt) which were synthesized, and then, poled in electrical field of corona discharge. Study of thermal, optical, and nonlinear optical parameters of the polymer films was carried out. It was found that the polymers obtained from di- and triglycidyl ethers of quercetin-8-sulfonic acid sodium salt are characterized by the higher values of macroscopic quadratic susceptibilities comparing with such a value for polymer obtained from tetraglycidyl ether of quercetin-8-sulfonic acid sodium salt. However, the latter polymer demonstrates a minimal intensity of relaxation processes that evidence its highest long-term stability, and thus, could be used as a nonlinear optical material. It is supposed that the difference of the nonlinear optical properties is due to peculiarities of intermolecular interactions in physical network of the polymers, namely, to the difference between numbers of hydrogen bonds formed by hydroxyl groups of chromophore fragments and number of hydrogen bonds linked of inter fragmental parts of the polymeric chains.

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Influence of structure 3,5,7,3′,4′–Pentahydroxyflavone-based polymer films on their optical transparency

Cited by 10 publications

References 17 publications

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Impact of Quercetin Encapsulation with Added Phytosterols on Bilayer Membrane and Photothermal-Alteration of Novel Mixed Soy Lecithin-Based Liposome

Nonlinear activity and long-term stability of thin polymer films based on poly(3,5,7,3^′,4^′-pentahydroxyflavone-8-sulfonic acid) sodium salt

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Influence of structure 3,5,7,3′,4′–Pentahydroxyflavone-based polymer films on their optical transparency

Cited by 10 publications

References 17 publications

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Evaluation of the antimicrobial, antioxidant and physicochemical properties of Poly(Vinyl chloride) films containing quercetin and silver nanoparticles

Impact of Quercetin Encapsulation with Added Phytosterols on Bilayer Membrane and Photothermal-Alteration of Novel Mixed Soy Lecithin-Based Liposome

Nonlinear activity and long-term stability of thin polymer films based on poly(3,5,7,3′,4′-pentahydroxyflavone-8-sulfonic acid) sodium salt

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Product

Resources

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Nonlinear activity and long-term stability of thin polymer films based on poly(3,5,7,3^′,4^′-pentahydroxyflavone-8-sulfonic acid) sodium salt