Biofunctionalization of Glass Powder by Cold-Plasma Technique

Author(s):  
Odilio B.G. Assis ◽  
Leonardo G. Paterno
2005 ◽  
Vol 498-499 ◽  
pp. 594-599 ◽  
Author(s):  
Odilio B.G. Assis ◽  
Leonardo G. Paterno

The present work deals with cold plasma organosilicon treatment of glass powder surfaces. The treated material underwent subsequent chemical derivations by storing samples inside an evacuated chamber, allowing chemical penetration at controlled pressures. The radicals’ inductions were characterized by XPS within each stage of modification. The enzyme peroxidase was immobilized using functionalized materials to check the resultant biocompatibility. A sequence of surface tailoring is proposed suggesting the anchoring of enzyme via C = O groups implanted on the glass surface. The experimental results demonstrate that the proposed process is suitable for the functionalization of materials with irregular shapes.


2021 ◽  
pp. 110462
Author(s):  
Andria da C. Loureiro ◽  
Francisca das C. do A. Souza ◽  
Edgar A. Sanches ◽  
Jaqueline de A. Bezerra ◽  
Carlos Victor Lamarão ◽  
...  

Vacuum ◽  
1983 ◽  
Vol 33 (4) ◽  
pp. 231-233 ◽  
Author(s):  
A Ruder ◽  
A Grill ◽  
D Itzhak

2017 ◽  
Vol 138 ◽  
pp. 1153-1158 ◽  
Author(s):  
Phimpaka Meeprasertsagool ◽  
Anyarat Watthanaphanit ◽  
Tomonaga Ueno ◽  
Nagahiro Saito ◽  
Prasert Reubroycharoen

Author(s):  
Phuong Nguyen ◽  
Hiep Bui ◽  
Hieu Nguyen ◽  
Thien Pham ◽  
Tri Nguyen ◽  
...  

2007 ◽  
Vol 280-283 ◽  
pp. 1575-1580
Author(s):  
Bao Hui Su ◽  
Jun Guo Ran ◽  
Li Gou ◽  
Fang Hu Wang ◽  
Hai Su Guo

BGC, HA, β-TCP and biphase calcium phosphate (β-TCP/HA) were modified by using the cold plasma technique in the present study. The study results came from the formation of bone-like apatite in SBF and results of osteoblast culture in vitro, SEM, XPS, and XRD. The results showed that the formation of bone-like apatite on bioceramics modified by cold plasma was easier than that of no modification and the growth of osteoblast could be promoted. The active mechanism was that impact on bioceramics by means of the particles with high energy and high activity led to rough and etched surface of bioceramics, as well as the distortion of bioceramics crystal, which increased solubility of materials and local concentration of Ca and P ion. It was helpful for the formation of bone-like apatite. It was showed that the modification using cold plasma technique could increase the activity of bioceramics.


2008 ◽  
Vol 368-372 ◽  
pp. 1264-1267 ◽  
Author(s):  
Bao Hui Su ◽  
Jing Chun Su ◽  
Jun Guo Ran ◽  
Bao Yue Su

HA/ß-TCP is one kind of important bone tissue engineering scaffold materials. In order to improve the biological performance of materials, HA/ß-TCP ceramics were modified by the cold plasma technique in this paper. The biological performances of treated materials were evaluated by the results of bone-like apatite formation in SBF, the coculture of the C2C12 cell line and HA/ß-TCP, cell proliferation experiments, observations of the electron microscopy and fluorescence staining and the animal intramuscular implantation experiments. The results showed that after immersion, compared with untreated HA/ß-TCP, treated materials were more conducive to form bone-like apatite; modified HA/ß-TCP could promote the cell proliferation more; the cells grew in the course of nature on the treated scaffold and modified HA/ß-TCP had better bone-forming performance in vivo. It was concluded that modified HA/ß-TCP had better biological performance; the cold plasma technique could improve the biological performance of dental biphasic calcium phosphate ceramics.


2021 ◽  
Vol 285 ◽  
pp. 119861
Author(s):  
Jing Li ◽  
Yanan Zhou ◽  
Weijing Tang ◽  
Jian Zheng ◽  
Xiaoping Gao ◽  
...  

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