Tailoring surface properties of cellulose acetate membranes by low-pressure plasma processing

2010 ◽  
Vol 118 (6) ◽  
pp. 3227-3235 ◽  
Author(s):  
Chun Huang ◽  
Ching-Yuan Tsai ◽  
Ruey-Shin Juang ◽  
Hsiang-Chien Kao
Keyword(s):  
Cellulose Acetate ◽  
Surface Properties ◽  
Plasma Processing ◽  
Low Pressure ◽  
Pressure Plasma ◽  
Cellulose Acetate Membranes ◽  
Low Pressure Plasma

scholarly journals Influence of Low-Pressure Plasma on the Surface Properties of CAD-CAM Leucite-Reinforced Feldspar and Resin Matrix Ceramics

2020 ◽  
Vol 10 (24) ◽  
pp. 8856
Author(s):  
Pablo Sevilla ◽  
Carlos Lopez-Suarez ◽  
Jesús Pelaez ◽  
Celia Tobar ◽  
Veronica Rodriguez-Alonso ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Plasma Treatment ◽  
Surface Properties ◽  
Ceramic Materials ◽  
Low Pressure ◽  
Resin Matrix ◽  
Ceramic Surface ◽  
Pressure Plasma ◽  
Plasma Treatments ◽  
Low Pressure Plasma

The introduction of new ceramic materials for dental restorations is currently a reality; however, little information is available on their surface treatment for the bonding process. Furthermore, surface treatment with plasma on ceramic materials has been recently introduced, although not many studies are available. The aim of this study was to evaluate the surface properties of a leucite-reinforced feldspar ceramic (LIC) and resin matrix ceramic (RMC) after low-pressure plasma treatment. From each material, 48 discs were prepared and subject to surface treatment. The LIC group was treated by hydrofluoric acid (HF) (LIC-HF), plasma with oxygen (LIC-O2), and plasma with argon (LIC-Ar). The RMC group was treated by sandblasting with alumina (RMC-SB), plasma with oxygen (RMC-O2), and plasma with argon (RMC-Ar). The groups whose surfaces were not subjected to treatment were considered as the control group. Surface wettability and roughness was analyzed. The results showed significant differences among the treatments for both ceramics regarding wettability and roughness. Plasma treatments increased the wettability and had a very low effect on the roughness. Plasma treatments achieved similar values for both surface properties in each ceramic group with no differences between both treatments. Plasma treatment seems to be a promising alternative for ceramic surface treatments since it increased the surface energy of the ceramics analyzed and hardly affects the roughness. Further studies are necessary to evaluate the effect of plasma treatment on the bond strength of ceramics.

Low Pressure Plasma Processing of Collagen Membranes for Anti-Cancer Drug Delivery

2018 ◽  
Vol 07 (06) ◽  
Author(s):  
Alibi Baitukha ◽  
Iman Al-Dybiat ◽  
Azadeh Valinataj-Omran ◽  
Jerome Pulpytel ◽  
Marc Pocard ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Plasma Processing ◽  
Low Pressure ◽  
Cancer Drug ◽  
Pressure Plasma ◽  
Anti Cancer ◽  
Low Pressure Plasma ◽  
Collagen Membranes ◽  
Cancer Drug Delivery
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