Biological activity of electrochemically synthesized silver doped polyvinyl alcohol/graphene composite hydrogel discs for biomedical applications

2016 ◽  
Vol 104 ◽  
pp. 26-34 ◽  
Author(s):  
M.M. Abudabbus ◽  
I. Jevremović ◽  
A. Janković ◽  
A. Perić-Grujić ◽  
I. Matić ◽  
...  
Keyword(s):  
Biological Activity ◽  
Polyvinyl Alcohol ◽  
Biomedical Applications ◽  
Composite Hydrogel ◽  
Graphene Composite

Fast self-healing multifunctional polyvinyl alcohol nano-organic composite hydrogel as building blocks for highly sensitive strain/pressure sensors

2021 ◽  
Author(s):  
Wenhao Zhao ◽  
Dongzhi Zhang ◽  
Yan Yang ◽  
Chen Du ◽  
Bao Zhang
Keyword(s):  
Polyvinyl Alcohol ◽  
Human Computer Interaction ◽  
Pressure Sensors ◽  
Building Blocks ◽  
Composite Hydrogel ◽  
Sensitive Strain ◽  
Self Healing ◽  
Wearable Sensor ◽  
Hybrid Hydrogel ◽  
Highly Sensitive

The conductive and biocompatible hybrid hydrogel was successfully assembled into an adhesive, flexible wearable sensor for ultra-sensitive human-computer interaction and smart detection, which holds excellent self-healing capability. This conductive, repairable...

Production and characterization of biocompatible nanofibrous scaffolds made of β-sitosterol loaded polyvinyl alcohol/tragacanth gum composites

2021 ◽  
Author(s):  
Salim Albukhaty ◽  
Hassan Al-Karagoly ◽  
alireza allafchian ◽  
Seyed Amir Hossein Jalali ◽  
Thair Alkelabi ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Biomedical Applications ◽  
Sufficient Conditions ◽  
L929 Cell ◽  
Angle Measurement ◽  
Water Soluble ◽  
Normal Fibroblast ◽  
Tragacanth Gum ◽  
Nanofibrous Scaffolds ◽  
Poorly Water Soluble

Abstract Electrospun polyvinyl alcohol and Tragacanth Gum were used to develop nanofibrous scaffolds containing poorly water-soluble beta-sitosterol. Different Concentration and Ratio of Polymeric composite: (10%) of β-S concentration in (PVA) 8 %, (TG) 0.5%, and 1% respectively were added, prepared and electrospun. The methods have included four parameters (Solution concentration, feeding rate, voltage, and distance of the collector to the tip of the needle) for designing and compared the nanofibers' average diameters. The nanofibers collected were identified via SEM, FTIR, and XRD measurements. A contact angle measurement described the hydrophilicity of the scaffold. MTT test was assessed for obtained nanofibers by using L929 normal fibroblast cells. The %age of mechanical strength, porosity, and deterioration of the scaffolds was well discussed. The average nanofibre ranged from 63 ± 20 nm to 97 ± 46 nm in diameters. The nanofibers loaded with β-S were freely soluble in water and displayed a short release lag time. The dissolution was related to an immediate dissolution, submicron-level recrystallization of β-S with sufficient conditions for nanofibers for L929 cell culture that could be used in biomedical applications. It concluded that electrospinning is a promising technique for poorly water-soluble β-S formulations that could be used in biomedical applications.

Retarding Bioactivity Effect of Ciprofloxacin Incorporated in Polyvinyl Alcohol/Bioglass Scaffold as Bone Graft

2015 ◽  
Vol 1104 ◽  
pp. 163-167 ◽  
Author(s):  
Salha Boulila ◽  
Hassane Oudadesse ◽  
Bertrand Lefeuvre ◽  
Khansa Chaabouni ◽  
Fatima Makni-Ayedi ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Biomedical Applications ◽  
Potential Role ◽  
Icp Oes ◽  
Rapid Reduction ◽  
Physico Chemical ◽  
Before And After ◽  
Osteoinductive Property ◽  
Apatitic Phase

The biomaterials are used for many biomedical applications. The main objective of the present work was to investigate the potential role of Bioglass (Melting)- Polyvinyl alcohol (BG (M)-PVA) and Bioglass (Melting)-Polyvinyl alcohol-20%Ciprofloxacin (BG (M)-PVA-20Cip) in regenerative bone capacity. These composites were implanted in the femoral condyles of Wistar rats and compared to that of ovariectomised groups. Our results noted, after the different period of implantation (15, 30, 60 and 90 days), that the Alkaline phosphatase (ALP) and Acid phosphatase (ACP) activities showed an excellent osteoinductive property of BG (M)-PVA, that this phenomena decreased with the presence of ciprofloxacin. Physico-chemical techniques (ICP-OES and SEM) were engaged to highlight the influence of antibiotic on the structure, porosity and bioactivity of a porous Glass-PVA before and after implantation. The results obtained by ICP-OES showed a rapid reduction in silicon (Si) and sodium (Na), and noted an accelerator increase in calcium (Ca) and phosphorus (P) ion concentrations in BG (M)-PVA that the BG (M)-PVA-20Cip. This result is confirmed by SEM. We can conclude that the loading of ciprofloxacin in BG (M)-PVA is characterized by a retard effect of formation of apatitic phase.

Preparation and performance investigation of polydimethylsiloxane microsphere/polyvinyl alcohol composite hydrogel

2018 ◽  
Vol 228 ◽  
pp. 399-402 ◽  
Author(s):  
Haining Wang ◽  
Fu Wang ◽  
Xiuqi Li ◽  
Xingping Peng ◽  
Zhipeng Ci ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Composite Hydrogel ◽  
And Performance
Sign in / Sign up

Export Citation Format

Share Document