Formation of poly(vinyl alcohol)-titanium lactate hybrid nanofibers and properties of TiO2 nanofibers obtained by calcination of the hybrids

2007 ◽  
Vol 104 (2) ◽  
pp. 1232-1235 ◽  
Author(s):  
Koji Nakane ◽  
Kaori Yasuda ◽  
Takashi Ogihara ◽  
Nobuo Ogata ◽  
Shinji Yamaguchi
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Tio2 Nanofibers ◽  
Hybrid Nanofibers

scholarly journals Fabrication of Hybrid Nanofibers from Biopolymers and Poly (Vinyl Alcohol)/Poly (ε-Caprolactone) for Wound Dressing Applications

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2104
Author(s):  
Sibusiso Alven ◽  
Blessing Atim Aderibigbe
Keyword(s):  
Mechanical Properties ◽  
Wound Healing ◽  
Vinyl Alcohol ◽  
Wound Dressing ◽  
Chronic Wounds ◽  
Cellular Adhesion ◽  
Wound Dressings ◽  
Poly Vinyl Alcohol ◽  
High Porosity ◽  
Hybrid Nanofibers

The management of chronic wounds is challenging. The factors that impede wound healing include malnutrition, diseases (such as diabetes, cancer), and bacterial infection. Most of the presently utilized wound dressing materials suffer from severe limitations, including poor antibacterial and mechanical properties. Wound dressings formulated from the combination of biopolymers and synthetic polymers (i.e., poly (vinyl alcohol) or poly (ε-caprolactone) display interesting properties, including good biocompatibility, improved biodegradation, good mechanical properties and antimicrobial effects, promote tissue regeneration, etc. Formulation of these wound dressings via electrospinning technique is cost-effective, useful for uniform and continuous nanofibers with controllable pore structure, high porosity, excellent swelling capacity, good gaseous exchange, excellent cellular adhesion, and show a good capability to provide moisture and warmth environment for the accelerated wound healing process. Based on the above-mentioned outstanding properties of nanofibers and the unique properties of hybrid wound dressings prepared from poly (vinyl alcohol) and poly (ε-caprolactone), this review reports the in vitro and in vivo outcomes of the reported hybrid nanofibers.

Electrospinning fabrication and characterization of poly(vinyl alcohol)/montmorillonite/silver hybrid nanofibers for antibacterial applications

2009 ◽  
Vol 288 (1) ◽  
pp. 115-121 ◽  
Author(s):  
Jae Hyeung Park ◽  
Mohammad Rezaul Karim ◽  
In Kyo Kim ◽  
In Woo Cheong ◽  
Jong Won Kim ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Hybrid Nanofibers ◽  
Fabrication And Characterization

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

2018 ◽  
Vol 83 (7-8) ◽  
pp. 885-897
Author(s):  
Ugur Hulusi ◽  
Burcu Oktay ◽  
Atilla Gungor ◽  
Nilhan Kayaman-Apohan
Keyword(s):  
Contact Angle ◽  
Water Contact Angle ◽  
Vinyl Alcohol ◽  
Sol Gel ◽  
Poly Vinyl Alcohol ◽  
Water Mixture ◽  
Sem Images ◽  
Water Contact ◽  
Hybrid Nanofibers ◽  
Silica Precursor

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.

scholarly journals Formation of Refractory Carbide and Nitride Nanofibers by Thermal Decomposition of Poly(vinyl alcohol)-Titanium Lactate Hybrid Nanofibers

2011 ◽  
Vol 67 (12) ◽  
pp. 261-265 ◽  
Author(s):  
Koji Nakane ◽  
Keisuke Nakanishi ◽  
Jae-Ho Kim ◽  
Susumu Yonezawa ◽  
Takashi Ogihara ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Refractory Carbide ◽  
Hybrid Nanofibers

Transition behaviors and hybrid nanofibers of poly(vinyl alcohol) and polyethylene glycol–POSS telechelic blends

2011 ◽  
Vol 289 (8) ◽  
pp. 863-870 ◽  
Author(s):  
Kyu-Oh Kim ◽  
Yun-A Seo ◽  
Byoung-Suhk Kim ◽  
Kee-Jong Yoon ◽  
Myung-Seob Khil ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Hybrid Nanofibers

scholarly journals Formation of inorganic nanofibers by heat-treatment of poly(vinyl alcohol)-zirconium compound hybrid nanofibers

2013 ◽  
Vol 49 (1) ◽  
pp. 77-82 ◽  
Author(s):  
K. Nakane ◽  
S. Matsuoka ◽  
S. Gao ◽  
S. Yonezawa ◽  
J.H. Kim ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Vinyl Alcohol ◽  
High Specific Surface Area ◽  
Poly Vinyl Alcohol ◽  
Monoclinic Zro2 ◽  
Hybrid Nanofibers ◽  
Zirconium Compound

Poly(vinyl alcohol)-zirconium compound hybrid nanofibers (precursors) were formed by electrospinning employing water as a solvent for the spinning solution. The precursors were converted into oxide (ZrO2), carbide (ZrC) or nitride (ZrN) nanofibers by heating them in air, Ar or N2 atmospheres. Monoclinic ZrO2 nanofibers with high-specific surface area were obtained by heat-treatment of the precursors in air. ZrC and ZrN nanofibers could be obtained below theoretical temperatures calculated from thermodynamics data.

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