Linear and Nonlinear Optical Characteristics of Basic Fuchsin-Doped Polyvinyl Alcohol Films for Flexible Optoelectronics DOI Creative Commons
A.A. Al‐Muntaser, Eman Alzahrani, S. A. Al‐Ghamdi

et al.

ECS Journal of Solid State Science and Technology, Journal Year: 2024, Volume and Issue: 13(12), P. 124001 - 124001

Published: Dec. 2, 2024

Polyvinyl alcohol (PVA) containing different levels of basic fuchsine (BF) was prepared using the solution casting method. Characterization via Fourier-transform infrared spectroscopy detailed changes in functional groups within PVA/BF composites, indicating hydrogen bonding between OH group PVA and BF molecules. Optical investigations spanning 190–2500 nm range demonstrated UV blocking properties composites (from 2.05 to 2.56 eV from 4.08 6.32 eV). Moreover, studies on optical band gap indicated a decrease with increased concentrations, reflecting altered electronic transitions composites. The study also employed single oscillator model provided by Wemple-DiDomenico elucidate refractive index variations. After incorporating dye into polymer, values dielectric constant as frequency approaches infinity ( ε ∞ ), lattice L dispersion energy (E d o ) composite samples showed an increase. nonlinear properties, including susceptibility were investigated discussed. These findings underscore versatility doped for various applications filters, solar cell devices.

Language: Английский

Fabrication of multifunctional ZnO@tannic acid nanoparticles embedded in chitosan and polyvinyl alcohol blend packaging film DOI Creative Commons

Maha Sultan,

Ahmed M. Youssef, Rasha A. Baseer

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Aug. 9, 2024

The current study explores biodegradable packaging materials that have high food quality assurance, as deterioration is mostly caused by UV degradation and oxidation, which can result in bad flavor nutrition shortages. Thus, new multifunctional zinc oxide nanoparticles/tannic acid (ZnO@TA) with antioxidant antibacterial activities were incorporated into polyvinyl alcohol/chitosan (PVA/CH) composite films different ratios (1%, 3%, 5% based on the total dry weight of film) via a solution blending method neutral aqueous solution. Additionally, ZnO nanoparticles unique mechanisms through generation excessive reactive oxygen species (ROS) may lead to intensify pathogen resistance conventional agents. minimizing negative effects levels ROS be possible developing unique, potential coordination bond between tannic (ZnO@TA). ZnO@TA examined using Fourier-transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM). effect incorporation barrier, mechanical, thermal, antioxidant, antimicrobial, blocking characteristics chitosan/polyvinyl alcohol (ZnO@TA@CH/PVA) was investigated. lowest water vapor permeability maximum capacity% are 31.98 ± 1.68 g mm/m

Language: Английский

Citations

8
Tailoring the Optical, Electrical, and Dielectric Characteristics of PEG/PVA Blends by Integrating MWCNTs to Enhance the Performance of Advanced Energy Storage Devices DOI
Nessrin A. Kattan, Maha AlAnazi, M.A. Morsi

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Language: Английский

Citations

0
Influence of Nanoparticle Content and Cross-Linking Degree on Functional Attributes of Calcium Alginate-ZnO Nanocomposite Wound Dressings DOI Creative Commons

Sergio Henrique Toledo e Silva,

Andréa Cristiane Krause Bierhalz, Ângela Maria Moraes

et al.

Membranes, Journal Year: 2025, Volume and Issue: 15(4), P. 108 - 108

Published: April 1, 2025

Alginate-ZnO nanoparticles (ZnOnano) composite wound dressing membranes were prepared with two different ZnOnano concentrations (0.03 and 0.20 g ZnO/g sodium alginate) cross-linked calcium treatments (low high Ca++concentration) to evaluate the influence of nanoparticle content cross-linking degree on membrane attributes. addition did not significantly alter mechanical properties, water vapor permeability, swelling in alginate amorphous nature nanocomposite membranes. The increase degree, other hand, altered microstructure membranes, increased tensile strength reduced permeability presence granted them antibacterial activity vitro against Pseudomonas aeruginosa Staphylococcus aureus substantially absorption capacity phosphate buffer fetal bovine serum solutions, validating their potential use as dressings.

Language: Английский

Citations

0
Sustainable chitosan-based biomaterials for the future: a review DOI

Amritha Radhakrishnan,

Unnikrishnan Gopalakrishna Panicker

Polymer Bulletin, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 11, 2024

Language: Английский

Citations

2
Synergistic enhancement of electrical and ionic conductivity in polyvinyl alcohol/polyvinylpyrrolidone‑copper/lithium titanate oxide electrolyte nanocomposite films for Li-ion battery applications DOI
Abdu Saeed,

Amal Mohsen Alghamdi,

Maha A. Alenizi

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 104, P. 114534 - 114534

Published: Nov. 15, 2024

Language: Английский

Citations

0
Linear and Nonlinear Optical Characteristics of Basic Fuchsin-Doped Polyvinyl Alcohol Films for Flexible Optoelectronics DOI Creative Commons
A.A. Al‐Muntaser, Eman Alzahrani, S. A. Al‐Ghamdi

et al.

ECS Journal of Solid State Science and Technology, Journal Year: 2024, Volume and Issue: 13(12), P. 124001 - 124001

Published: Dec. 2, 2024

Polyvinyl alcohol (PVA) containing different levels of basic fuchsine (BF) was prepared using the solution casting method. Characterization via Fourier-transform infrared spectroscopy detailed changes in functional groups within PVA/BF composites, indicating hydrogen bonding between OH group PVA and BF molecules. Optical investigations spanning 190–2500 nm range demonstrated UV blocking properties composites (from 2.05 to 2.56 eV from 4.08 6.32 eV). Moreover, studies on optical band gap indicated a decrease with increased concentrations, reflecting altered electronic transitions composites. The study also employed single oscillator model provided by Wemple-DiDomenico elucidate refractive index variations. After incorporating dye into polymer, values dielectric constant as frequency approaches infinity ( ε ∞ ), lattice L dispersion energy (E d o ) composite samples showed an increase. nonlinear properties, including susceptibility were investigated discussed. These findings underscore versatility doped for various applications filters, solar cell devices.

Language: Английский

Citations

0