Poly(amidoamine)s (PAMAMs) incorporated into a cross-linked poly(ethylene glycol) exhibited excellent CO2 separation properties over H2. However, the CO2 permeability should be increased for practical applications. Monoethanolamine (MEA) used as a CO2 determining agent in the current CO2 capture technology at demonstration scale was readily immobilized in poly(vinyl alcohol) (PVA) matrix by sol...

To ensure safe coil embolization for cerebral aneurysms, it is important to investigate the contact force between a and an aneurysm wall. Therefore, in our previous study, we developed experimental system measuring biomodel. However, because model was made of silicone rubber, its physical properties, such as friction coefficient, differed from those aneurysms vivo. this using poly (vinyl alcoho...

A combination of mechanochemistry and aqueous self-assembly is employed to prepare protein nanofibrils (PNFs) functionalized with perylene diimide (PDI) dyes. These materials are then mixed poly(vinyl alcohol) (PVA) casted into bioplastic films. The functionalization process not only results in luminescent hybrid materials, but the presence dye modifies physical properties PNFs. Films formed fr...

Lignin has been used as a sustainable and eco-friendly filler in composite fibers. However, lignin aggregation occurred at high content, which significantly hindered the further enhancement of fiber performance. The incorporation graphene oxide (GO) enhanced mechanical properties lignin/poly(vinyl alcohol) (PVA) fibers affected their structure. With GO content increasing from 0 to 0.2%, tensile...

The aim of this study was to develop novel biomedicated nanofiber electrospun mats for controlled drug release, especially drug release directly to an injury site to accelerate wound healing. Nanofibers of poly(vinyl alcohol) (PVA), poly(vinyl acetate) (PVAc), and a 50:50 composite blend, loaded with ciprofloxacin HCl (CipHCl), were successfully prepared by an electrospinning technique for the ...

This paper focuses on preparation of poly(vinyl alcohol) (PVA)-based composites reinforced with okra bast fibers at different percentages 5, 10, 20% via solution casting method. Fibers obtained from sections plants were biologically degummed and scoured Na2CO3. Selected bleached, treated maleic anhydride or grafted vinyl acetate. Mechanical, physical biodegradational properties the investigated...

To prepare ultra-clean gasoline fuel, a new nanocomposite TBA-PV2Mo10@PVA was introduced as an efficient and green catalyst for oxidative desulfurization (ODS) process. The nanocomposite was successfully prepared by reaction of tetrabutylammonium bromide (TBA), H5PMo10V2O40, and poly vinyl alcohol (PVA) at room temperature via sol–gel method under oil-bath condition. The synthesized TBA-PV2Mo10...

Nanoparticles that readily penetrate mucosal layers are desirable for a variety of biomedical applications. Nevertheless, most nanoparticles tend to be immobilized in mucus via steric and/or adhesive interactions. Contrary to the established opinion that poly(vinyl alcohol) (PVA) is mucoadhesive, we discovered that coating otherwise mucoadhesive nanoparticles with certain partially hydrolyzed P...

Molecular dynamics (MD) simulations were carried out to elucidate the dynamic behavior of water confined in poly(vinyl alcohol), PVA, hydrogels. Model topology is supported by experimental network parameters, and simulation results are compared to an incoherent quasielastic neutron scattering (QENS) investigation carried out on PVA hydrogels. From the QENS dynamic scattering law (part I), a ran...

The dielectric behavior of poly(vinyl alcohol) –PVA– crosslinked hydrogels obtained by the repeated freezing/ thawing (F/T) technique have been investigated by dielectric relaxation spectroscopy (DRS) and differential scanning calorimetry (DSC). The crosslinked polymer is produced by the clustering of chains caused by the association of a polar group of the dissolved polymer followed by polymer...