Nanostructured Conducting Polymers as Intelligent Implant Surface: Fabricated on Biomedical Titanium with a Potential-Induced Reversible Switch in Wettability

ChemPhysChem ◽  
2013 ◽  
Vol 14 (17) ◽  
pp. 3891-3894 ◽  
Author(s):  
Jingwen Liao ◽  
Chengyun Ning ◽  
Zhaoyi Yin ◽  
Guoxin Tan ◽  
Shishu Huang ◽  
...  
Author(s):  
J. Fink

Conducting polymers comprises a new class of materials achieving electrical conductivities which rival those of the best metals. The parent compounds (conjugated polymers) are quasi-one-dimensional semiconductors. These polymers can be doped by electron acceptors or electron donors. The prototype of these materials is polyacetylene (PA). There are various other conjugated polymers such as polyparaphenylene, polyphenylenevinylene, polypoyrrole or polythiophene. The doped systems, i.e. the conducting polymers, have intersting potential technological applications such as replacement of conventional metals in electronic shielding and antistatic equipment, rechargable batteries, and flexible light emitting diodes.Although these systems have been investigated almost 20 years, the electronic structure of the doped metallic systems is not clear and even the reason for the gap in undoped semiconducting systems is under discussion.


1985 ◽  
Vol 46 (9) ◽  
pp. 1595-1601 ◽  
Author(s):  
F. Devreux ◽  
G. Bidan ◽  
A.A. Syed ◽  
C. Tsintavis

1983 ◽  
Vol 44 (C3) ◽  
pp. C3-567-C3-572 ◽  
Author(s):  
F. Bénière ◽  
D. Boils ◽  
H. Cánepa ◽  
J. Franco ◽  
A. Le Corre ◽  
...  

1982 ◽  
Vol 136 (3) ◽  
pp. 535
Author(s):  
S.A. Brazovskii
Keyword(s):  

Author(s):  
Pier Poli ◽  
Francisley Avila Souza ◽  
Mattia Manfredini ◽  
Carlo Maiorana ◽  
Mario Beretta

Not required for Clinical case letters according to the authors' guidelines.


Author(s):  
T. R. Davydova ◽  
А. I. Shaikhaliev ◽  
D. A. Usatov ◽  
G. A. Gasanov ◽  
R. S. Korgoloev

The aim of this study was to study the effect of surface branching of titanium endoprostheses on the efficiency of fibrointegration. The object of the study was samples of titanium alloy Ti6Al4V in the form of disks with a diameter of 5 mm and a thickness of 1 mm with various surface treatments: 1) samples with a rough surface after sandblasting; 2) samples with a rough surface after sandblasting with a bioactive coating of titanium dioxide TiO2 with anatase structure. The study of surface roughness was carried out by profilometry. Evaluation of the spreading and proliferation of cells on the surface of test samples, as well as evaluation of the effectiveness of fibrointegration was carried out according to standard methods using scanning electron microscopy. During the experiments, mesinchymal stem cells were sown on test samples and the test samples were introduced into the soft tissues of experimental animals. Based on the results obtained, it was concluded that the technology of forming rough surfaces by sandblasting does not provide high uniformity and reproducibility in the nanometer range and, apparently, another method for obtaining a rough surface should be chosen. The application of a bioactive coating of titanium dioxide TiO2 with the anatase structure to the surface of titanium endoprostheses increases the efficiency of fibrointegration, however, primarily the fibrointegration of titanium endoprostheses depends on their surface roughness, which determines the concentration of cell structures, the intensity of their adhesion and the ability to fibrointegrative process.


1988 ◽  
Author(s):  
III Gordon ◽  
Runt Bernard ◽  
Painter James P. ◽  
Paul C.
Keyword(s):  

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