Removal of Methylene Blue from Aqueous Solutions Using Poly(vinyl alcohol)/Montmorillonite Nanocomposite Hydrogels: Taguchi Optimization

2019 ◽  
Vol 27 (10) ◽  
pp. 2239-2249 ◽  
Author(s):  
Ehsan Roufegari-Nejhad ◽  
Mohammad Sirousazar ◽  
Vahid Abbasi-Chiyaneh ◽  
Farshad Kheiri
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Taguchi Optimization ◽  
Nanocomposite Hydrogels

Agar/maltodextrin/poly(vinyl alcohol) walled montmorillonite composites for removal of methylene blue from aqueous solutions

2021 ◽  
pp. 101410
Author(s):  
Thuong Thi Nguyen ◽  
Bich Ngoc Hoang ◽  
Thuan Van Tran ◽  
Dai Van Nguyen ◽  
Trinh Duy Nguyen ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol

pH-Sensitive Nanocomposite Hydrogels Based on Poly(Vinyl Alcohol) Macromonomer and Graphene Oxide for Removal of Cationic Dyes from Aqueous Solutions

2019 ◽  
Vol 28 (2) ◽  
pp. 584-597 ◽  
Author(s):  
Mina Rabipour ◽  
Zahra Sekhavat Pour ◽  
Razieh Sahraei ◽  
Mousa Ghaemy ◽  
Mehdi Erfani Jazi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Vinyl Alcohol ◽  
Ph Sensitive ◽  
Cationic Dyes ◽  
Poly Vinyl Alcohol ◽  
Nanocomposite Hydrogels

Flow-induced crystalline precursors in entangled Poly(vinyl alcohol) aqueous solutions

Polymer ◽  
2021 ◽  
pp. 123960
Author(s):  
Chang Liu ◽  
Xinhong Yu ◽  
Yinghan Li ◽  
Xinyue Zhao ◽  
Quan Chen ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol

Methylene blue and xanthene dyes sensitized poly(vinyl alcohol) for correlation peak detection

1994 ◽  
Author(s):  
Rupak Changkakoti ◽  
Gurusamy Manivannan ◽  
Philippe E. Leclere ◽  
Roger A. Lessard ◽  
Danny Roberge ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Vinyl Alcohol ◽  
Peak Detection ◽  
Poly Vinyl Alcohol ◽  
Correlation Peak ◽  
Xanthene Dyes

scholarly journals Macrophages, the main marker in biocompatibility evaluation of new hydrogels after subcutaneous implantation in rats

2021 ◽  
pp. 088532822110461
Author(s):  
Tijana Lužajić Božinovski ◽  
Vera Todorović ◽  
Ivan Milošević ◽  
Bogomir Bolka Prokić ◽  
Vladimir Gajdov ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Giant Cells ◽  
Surface Interactions ◽  
Poly Vinyl Alcohol ◽  
Nanocomposite Hydrogels ◽  
Tissue Sections ◽  
Biological Responses ◽  
Statistical Relevance ◽  
Biomaterial Surface

Biocompatibility of materials is one of the most important conditions for their successful application in tissue regeneration and repair. Cell-surface interactions stimulate adhesion and activation of macrophages whose acquaintance can assist in designing novel biomaterials that promote favorable macrophage–biomaterial surface interactions for clinical application. This study is designed to determine the distribution and number of macrophages as a means of biocompatibility evaluation of two newly synthesized materials [silver/poly(vinyl alcohol) (Ag/PVA) and silver/poly(vinyl alcohol)/graphene (Ag/PVA/Gr) nanocomposite hydrogels] in vivo, with approval of the Ethics Committee of the Faculty of Veterinary Medicine, University of Belgrade. Macrophages and giant cells were analyzed in tissue sections stained by routine H&E and immunohistochemical methods (CD68+). Statistical relevance was determined in the statistical software package SPSS 20 (IBM corp). The results of the study in terms of the number of giant cells localized around the implant showed that their number was highest on the seventh postoperative day (p.o.d.) in the group implanted with Ag/PVA hydrogels, and on the 30th p.o.d. in the group implanted with Ag/PVA/Gr. Interestingly, the number of macrophages measured in the capsular and pericapsular space was highest in the group implanted with the commercial Suprasorb© material. The increased macrophage number, registered around the Ag/PVA/Gr implant on 60th p.o.d. indicates that the addition of graphene can, in a specific way, modulate different biological responses of tissues in the process of wound healing, regeneration, and integration.

Conformational changes in poly(vinyl alcohol)-graft-polyacrylamide in aqueous solutions vs graft content

2003 ◽  
Vol 203 (1) ◽  
pp. 201-206 ◽  
Author(s):  
Nataliya Kutsevol ◽  
Tatyana Zheltonozhskaya ◽  
Nataliya Melnik ◽  
Jean-Michel Guenet ◽  
Vladimir Syromyatnikov
Keyword(s):  
Aqueous Solutions ◽  
Conformational Changes ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol
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