Poly(vinyl alcohol) hollow microcapsules prepared by emulsification, salting out, and photo cross-linking method

2012 ◽  
Vol 29 (8) ◽  
pp. 1108-1113 ◽  
Author(s):  
Mi Sun Lee ◽  
Eun Young Mok ◽  
Won Cheol Shin ◽  
Jong Dai Kim ◽  
Jin-Chul Kim
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Salting Out

scholarly journals Bioprinting Via a Dual-Gel Bioink Based on Poly(Vinyl Alcohol) and Solubilized Extracellular Matrix towards Cartilage Engineering

2021 ◽  
Vol 22 (8) ◽  
pp. 3901
Author(s):  
Mohsen Setayeshmehr ◽  
Shahzad Hafeez ◽  
Clemens van Blitterswijk ◽  
Lorenzo Moroni ◽  
Carlos Mota ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Cell Viability ◽  
Vinyl Alcohol ◽  
Compression Modulus ◽  
Synthetic Polymers ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Light Curing ◽  
Shape Retention ◽  
Amine Groups

Various hydrogel systems have been developed as biomaterial inks for bioprinting, including natural and synthetic polymers. However, the available biomaterial inks, which allow printability, cell viability, and user-defined customization, remains limited. Incorporation of biological extracellular matrix materials into tunable synthetic polymers can merge the benefits of both systems towards versatile materials for biofabrication. The aim of this study was to develop novel, cell compatible dual-component biomaterial inks and bioinks based on poly(vinyl alcohol) (PVA) and solubilized decellularized cartilage matrix (SDCM) hydrogels that can be utilized for cartilage bioprinting. In a first approach, PVA was modified with amine groups (PVA-A), and mixed with SDCM. The printability of the PVA-A/SDCM formulations cross-linked by genipin was evaluated. On the second approach, the PVA was functionalized with cis-5-norbornene-endo-2,3-dicarboxylic anhydride (PVA-Nb) to allow an ultrafast light-curing thiol-ene cross-linking. Comprehensive experiments were conducted to evaluate the influence of the SDCM ratio in mechanical properties, water uptake, swelling, cell viability, and printability of the PVA-based formulations. The studies performed with the PVA-A/SDCM formulations cross-linked by genipin showed printability, but poor shape retention due to slow cross-linking kinetics. On the other hand, the PVA-Nb/SDCM showed good printability. The results showed that incorporation of SDCM into PVA-Nb reduces the compression modulus, enhance cell viability, and bioprintability and modulate the swelling ratio of the resulted hydrogels. Results indicated that PVA-Nb hydrogels containing SDCM could be considered as versatile bioinks for cartilage bioprinting.

Poly(vinyl alcohol)/CNT composites: An effect of cross-linking with glutaraldehyde

2009 ◽  
Vol 46 (1-2) ◽  
pp. 379-383 ◽  
Author(s):  
Elena V. Basiuk ◽  
Arfat Anis ◽  
Sri Bandyopadhyay ◽  
Edgar Alvarez-Zauco ◽  
Sammy L.I. Chan ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking

Vitamin C hinders radiation cross-linking in aqueous poly(vinyl alcohol) solutions

2007 ◽  
Vol 265 (1) ◽  
pp. 92-97 ◽  
Author(s):  
Ebru Oral ◽  
Hatice Bodugoz-Senturk ◽  
Celia Macias ◽  
Orhun K. Muratoglu
Keyword(s):  
Vitamin C ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking

Synthesis of spherical porous cross-linked glutaraldehyde/poly(vinyl alcohol) hydrogels

2016 ◽  
Vol 36 (9) ◽  
pp. 891-898
Author(s):  
Sadao Araki ◽  
Yuko Shirakura ◽  
Harufumi Suzuki ◽  
Hideki Yamamoto
Keyword(s):  
Sodium Alginate ◽  
Vinyl Alcohol ◽  
Calcium Alginate ◽  
Chloride Solution ◽  
Calcium Chloride Solution ◽  
Inorganic Salts ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Alginate Content ◽  
Calcium Alginate Gels

Abstract Spherical glutaraldehyde cross-linked poly(vinyl alcohol) (PVA) hydrogels (G-PVA) were prepared in three steps: gelatification, cross-linking, and removal of alginate. Gelatification was carried out by dropping a solution of alginate, PVA, and glutaraldehyde into a calcium chloride solution to form calcium alginate. Calcium alginate gels were prepared at 20°C, 40°C, 60°C, and 80°C to study the effect of gelatification temperature on the formation of pores on the surface of G-PVA. The effect of the alginate content was studied. PVA and glutaraldehyde were cross-linked by immersion of the gels in a solution of H2SO4 and Na2SO4. The effect of sodium alginate and inorganic salts, such as MgSO4 and K2SO4, on the formation of pores on the surface of G-PVA was confirmed.

Composite Films of Poly(vinyl alcohol) and Bifunctional Cross-linking Cellulose Nanocrystals

2015 ◽  
Vol 7 (35) ◽  
pp. 19691-19699 ◽  
Author(s):  
Juho Antti Sirviö ◽  
Samuli Honkaniemi ◽  
Miikka Visanko ◽  
Henrikki Liimatainen
Keyword(s):  
Cellulose Nanocrystals ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Cross Linking

Preparation, characterization and enhanced performance of functional crosslinked membranes using poly(vinyl alcohol) as macromolecular crosslinker for fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 41428-41438 ◽  
Author(s):  
Jingmei Xu ◽  
Hongzhe Ni ◽  
Xueyan Luo ◽  
Zhe Wang ◽  
Huixuan Zhang
Keyword(s):  
Fuel Cells ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Transmission Channel ◽  
The Cross

The cross-linking structures and introduced PVA effectively blocked the transmission channel of methanol and inhibited the infiltration of methanol.

Effect of chemical cross-linking under elongation on shape restoring of poly(vinyl alcohol) hydrogel

1992 ◽  
Vol 46 (8) ◽  
pp. 1449-1451 ◽  
Author(s):  
Toshihiro Hirai ◽  
Hidetoshi Maruyama ◽  
Takashi Suzuki ◽  
Sadao Hayashi
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Chemical Cross Linking
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