1. Plasma gradient modified scaffolds to generate a chemoattractant surface
- Author
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Ramírez-Fernández, O., Godínez, R., Zúñiga-Aguilar, E., López-Cobá, C. A., Morales, J., and Roberto Olayo
- Subjects
Biomaterials ,Física, Astronomía y Matemáticas ,Chemotaxis ,Cell Culture ,Chemoattractant ,technology, industry, and agriculture ,Plasma Polypyrrole ,macromolecular substances ,Ito cells ,Modified Surfaces - Abstract
"A gradient of plasma polymerization of pyrrole was generate d to model a chemoattractant surface; it was obtained by changing the polymerization tim e to manipulate the thickness and the deposite d layer. The polymerization was generated with a power of 30W on a cylindrical vac uum reactor, the coverslip was polymerized covered by a cavity with a surface exposed of 0.7 cm every 35 min., the cells seeded were liver stellate cells (Ito); it was evaluated against a coverslip with continuous plasma polymerization of pyrrole (Ppy). The results show similar protein secret ions, but cells proliferation was selective in the surface gradient regions."
- Published
- 2014