Preparation and characterization of UV-cured hybrid polyvinyl alcohol nanofiber membranes by electrospinning

Zeytuncu, Bihter; Akman, Süleyman; Yücel, Onuralp; Kahraman, Memet Vezi̇r

doi:10.1590/s1516-14392014005000055

Cited by 21 publications

(4 citation statements)

References 22 publications

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“…The thermal properties of the resulting PVA/silica nanofibers were better than those obtained in most other similar studies. 19,[23][24][25] The high thermal stability of the silica precursor in this work could be attributed to the existence of C-F bonds and rigid aromatic units. This result also shows that the organic and inorganic matrices were fully crosslinked at the molecular level as supported previously by the FTIR results.…”

Section: Resultsmentioning

confidence: 83%

Highly thermally resistant hydrophobic poly(vinyl alcohol)-silica hybrid nanofibers

Uğur

Oktay

Güngör

et al. 2018

JSCS

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In this paper, the preparation of hydrophobic and crosslinked poly- (vinyl alcohol)/silica organic?inorganic hybrid nanofibers via the sol?gel electrospinning method is reported. Silica was produced through the acetic acid catalyzed reaction of a silica precursor consisting of dimethyldimethoxysilane (DMDMOS), methyltrimethoxysilane (MTMS), tridecafluoro-1,1,2,2-tetrahydrooctyltriethoxysilane (FAS1313; Dynasylan? F 8261) and phenyltrimethoxysilane (PTMS; Dynasylan? 9165) in a 2-propanol?water mixture. Hybrid nanofibers were obtained by electrospinning the silica precursor and an aqueous PVA solution. Chemical, structural, thermal and surface analyses were conducted by Fourier-transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy/energy-dispersive X-ray (SEM/EDX) and water contact angle (WCA) methods, respectively. The obtained hybrid nanofibers were insoluble in aqueous solution. SEM images displayed that highly crosslinked and porous structures were obtained and the average fiber diameters of poly(vinyl alcohol) (PVA)/silica nanocomposites were around 70 nm. A nanofiber surface with a water contact angle of 130? was achieved.

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Section: Resultsmentioning

confidence: 83%

Highly thermally resistant hydrophobic poly(vinyl alcohol)-silica hybrid nanofibers

Uğur

Oktay

Güngör

et al. 2018

JSCS

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“…From 1128-1045 cm -1 is the region of C-H deformation in-plane and 754 cm -1 is assigned to C-H deformation out-of-plane of pristine PLGA (Motta and Duek, 2006;Porjazoska et al, 2004). In the microparticles, the PAC signals can be observed at 3295 cm -1 , 1604 cm -1 and 842 cm -1 , as well as the absence of the C=O band of PVA at 1721 cm -1 (Alhosseini et al, 2012;Reis et al, 2006;Zeytuncu et al, 2014).…”

Section: Resultsmentioning

confidence: 97%

SYNTHESIS, CHARACTERIZATION AND in vitro CYTOTOXICITY OF Acacia mearnsii PROANTHOCYANIDIN LOADED PLGA MICROPARTICLES

Grasel

Behrens

Strassburger

et al. 2019

Braz. J. Chem. Eng.

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One of the highlighted areas in the development of new materials is the generation of micro-and nanoparticles as drug carriers which allow the progress in formulations with the ability to release active agents in a controlled way. The proanthocyanidins (PAC) extracted from the bark of the Black Wattle have stood out for their biological activities. However, most polyflavonoids have some features which limit their application in the pharmaceutical field, such as light fastness, low bioavailability of active agents, and unpleasant taste. In this context, this study aims to present the synthesis and characterization of PAC-loaded lactic-co-glycolic acid (PLGA) microparticles obtained by the multiple emulsion method. The incorporation of PAC into PLGA was successfully achieved with PAC encapsulation efficiency around 73%. Spherical microparticles were obtained with a size distribution in the range of 0.6 to 2.4 μm. The presence of PAC modified the thermal properties of the PLGA matrix. The results of in vitro assays with Vero and T24 lineage celss showed that PLGA/PAC microparticles did not promote any effect on cell proliferation by MTT assay after 24 h. The novel Acacia mearnsii proanthocyanidin-loaded PLGA microparticles have potential for application in biological systems.

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“…Electrospinning is a process that uses electric fields to produce nonwoven materials with high porosity, large surface area, small diameters, and uniform fibers; there is great industrial and scientific interest in these materials because of their many potential applications [1][2][3], as membranes for drug delivery [4], for tissue engineering [5], for water treatment [6], for food packing applications [7], sensors [8,9] and others. A typical electrospinning setup comprises a syringe pump to control the solution flow rate, a syringe with a small-diameter metallic needle, a high-voltage power supply, and a grounded collector plate ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Electrospun natural rubber fibers-based flexible conductive membranes

et al. 2020

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In recent years, the technique of electrospinning has been used to develop a novel class of micro-and nanoscale materials based on fibrous structures. Several polymers, in particular elastomers, that have been implemented in this process rely on properties such as elasticity, flexibility, biocompatibility, and low cost. Herein, we describe for the first time the electrospinning of natural rubber fibers without polymeric matrix to obtain self-standing non-woven mats and oriented elastomeric fibers. The fibers average diameters were approximately 5.5 µm. Polyaniline (PAni) was deposited on the membrane surface in order to enhance the conductive properties making easy the charge transportation. We have obtained biocompatible and flexible fibrous materials using natural rubber, this research opens up possibilities of using micro and nanofibers of only-natural rubber in many applications including sensors preparation.

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Preparation and characterization of UV-cured hybrid polyvinyl alcohol nanofiber membranes by electrospinning

Cited by 21 publications

References 22 publications

Highly thermally resistant hydrophobic poly(vinyl alcohol)-silica hybrid nanofibers

Highly thermally resistant hydrophobic poly(vinyl alcohol)-silica hybrid nanofibers

SYNTHESIS, CHARACTERIZATION AND in vitro CYTOTOXICITY OF Acacia mearnsii PROANTHOCYANIDIN LOADED PLGA MICROPARTICLES

Electrospun natural rubber fibers-based flexible conductive membranes

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