Surface Characterization of Oxyfluorinated Isotactic Polypropylene Films:  Scanning Force Microscopy with Chemically Modified Probes and Contact Angle Measurements

1998 ◽  
Vol 31 (11) ◽  
pp. 3679-3685 ◽  
Author(s):  
Holger Schönherr ◽  
Zdenek Hruska ◽  
G. Julius Vancso
e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Zdenka Kolská ◽  
Alena Řezníčková ◽  
Václav Švorčík

AbstractElectrokinetic potential (zeta potential) for selected 21 polymer foils was studied. The results on zeta potential are supplemented with contact angle measurements (goniometry) and with the results on surface roughness measured by atomic force microscopy (AFM). Zeta potential was determined using two approaches: streaming current and streaming potential at pH=6.0-6.2. Two electrolyte solutions with KCl (concentrations 0.001 and 0.005 mol/dm3) and KNO3 (0.001 mol/dm3) were used in the experiments. Zeta potential was shown to depend on surface chemistry, polarity, roughness and morphology of the polymer foils.


2004 ◽  
Vol 39 (2) ◽  
pp. 401-412 ◽  
Author(s):  
A. Bismarck ◽  
A. R. Boccaccini ◽  
E. Egia-Ajuriagojeaskoa ◽  
D. Hülsenberg ◽  
T. Leutbecher

2012 ◽  
Vol 1433 ◽  
Author(s):  
Alexandra Oliveros ◽  
Anthony Guiseppi-Elie ◽  
Mark Jaroszeski ◽  
Stephen E. Saddow

ABSTRACTIn this work we describe the characterization of anti-myoglobin immobilization on 3C-SiC (100) by means of surface modification with 3-aminopropyltriethoxysilane (APTES). Surface water contact angle measurements were used to compare the wettability of 3C-SiC (100) before (16 ±3°) and after APTES layer formation (61 ±1°). Atomic force microscopy (AFM) was used to confirm the homogenous formation of APTES and anti-myoglobin immobilization with EDC-sulfo NHS coupling. For the APTES surfaces no significant change in the surface roughness was obtained whereas with anti-myoglobin surfaces, particles on the order of ∼60 nm in diameter with a globular shape were observed.


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