Characterization of polymer surfaces by means of electrokinetic measurements

2007 ◽  
pp. 40-48 ◽  
Author(s):  
H.-J. Jacobasch ◽  
J. Schurz
Keyword(s):  
Polymer Surfaces

Characterization of Biomimetic Mineral Coated 3D PLGA Scaffolds

2006 ◽  
Author(s):  
A. Champa Jayasuriya ◽  
Chiragkumar Shah ◽  
Vijay Goel ◽  
Nabil A. Ebraheim
Keyword(s):  
Cell Culture ◽  
Culture Media ◽  
Biological Molecules ◽  
Polymer Surfaces ◽  
Human Blood Plasma ◽  
Carbonate Apatite ◽  
X Ray Diffraction ◽  
Cell Culture Media ◽  
Salt Leaching

The bone-like carbonate apatite (BLCA) coatings can be coated biomimetically in the polymer surfaces by soaking in the simulated body fluid (SBF). This SBF contains similar ionic constituents to human blood plasma. Micro-porous 3D poly(lactic-co-glycolic acid) PLGA scaffolds were fabricated by the solvent casting/salt leaching technique using chloroform to dissolve the polymer. We accelerated the deposition of mineral on scaffolds for 1-2 days, modifying the mineralization process using surface treatments and 5x SBF. These scaffolds were analyzed by Scanning Electron Microscopy (SEM), Fourier Transform Infra-Red (FTIR) and X-ray Diffraction (XRD). The scaffolds coated with BLCA layer were placed in the 24 well plates containing 2 ml of media, such as Tris Buffered Saline-pH 7.4, cell culture media containing αMEM supplemented with 10% FBS, and 1% penicillin-streptomycin and incubated at 37°C for 21 days. The BLCA layer on surfaces of scaffold was stable even after 21 days immersed in Tris Buffered Saline and cell culture media. This study suggests that BLCA were stable for at least 3 weeks in the both media, and therefore, mineral has a potential to use as a carrier for biological molecules for localized release applications as well as bone tissue engineering applications.

Characterization of additives at polymer surfaces by ToF-SIMS

2002 ◽  
Vol 34 (1) ◽  
pp. 565-569 ◽  
Author(s):  
N. Médard ◽  
C. Poleunis ◽  
X. Vanden Eynde ◽  
P. Bertrand
Keyword(s):  
Polymer Surfaces ◽  
Tof Sims

A new approach to chemical characterization of polymer surfaces

1995 ◽  
Vol 58 (2) ◽  
pp. 291-296 ◽  
Author(s):  
Thomas B. Lloyd ◽  
Kathleen E. Ferretti ◽  
Joyce Lagow
Keyword(s):  
Chemical Characterization ◽  
Polymer Surfaces ◽  
New Approach

Application of Scanning Force and Near Field Microscopies to the Characterization of Minimally Adhesive Polymer Surfaces

Biofouling ◽  
2003 ◽  
Vol 19 (sup1) ◽  
pp. 99-104 ◽  
Author(s):  
Boris B Akhremitchev ◽  
Jason E Bemis ◽  
Sabah Al-Maawali ◽  
Yujie Sun ◽  
Larissa Stebounova ◽  
...  
Keyword(s):  
Near Field ◽  
Polymer Surfaces ◽  
Scanning Force

Characterization of osteoblast-like behavior of cultured bone marrow stromal cells on various polymer surfaces

2000 ◽  
Vol 52 (2) ◽  
pp. 279-284 ◽  
Author(s):  
Jay W. Calvert ◽  
Kacey G. Marra ◽  
Lisa Cook ◽  
Prashant N. Kumta ◽  
Paul A. DiMilla ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Stromal Cells ◽  
Bone Marrow Stromal Cells ◽  
Marrow Stromal Cells ◽  
Polymer Surfaces
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