A Synthetic Overview of Preparation Protocols of Nonmetallic, Contact‐Active Antimicrobial Quaternary Surfaces on Polymer Substrates

2021 ◽  
pp. 2100437
Author(s):  
Christian Andersen ◽  
Jeppe Madsen ◽  
Anders E. Daugaard
Keyword(s):  
Author(s):  
Nurul Hanani Manab ◽  
Elfarizanis Baharudin ◽  
Fauziahanim Che Seman ◽  
Alyani Ismail

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 889
Author(s):  
Klára Fajstavrová ◽  
Silvie Rimpelová ◽  
Dominik Fajstavr ◽  
Václav Švorčík ◽  
Petr Slepička

The development of new biocompatible polymer substrates is still of interest to many research teams. We aimed to combine a plasma treatment of fluorinated ethylene propylene (FEP) substrate with a technique of improved phase separation. Plasma exposure served for substrate activation and modification of surface properties, such as roughness, chemistry, and wettability. The treated FEP substrate was applied for the growth of a honeycomb-like pattern from polystyrene solution. The properties of the pattern strongly depended on the primary plasma exposure of the FEP substrate. The physico-chemical properties such as changes of the surface chemistry, wettability, and morphology of the prepared pattern were determined. The cell response of primary fibroblasts and osteoblasts was studied on a honeycomb pattern. The prepared honeycomb-like pattern from polystyrene showed an increase in cell viability and a positive effect on cell adhesion and proliferation for both primary fibroblasts and osteoblasts.


2020 ◽  
Vol 40 (6) ◽  
pp. 495-506
Author(s):  
Chun-Chun Huang ◽  
Syang-Peng Rwei ◽  
Yun-Shao Huang ◽  
Yao-Chi Shu

AbstractIn this study, composite membranes produced by combining both biopolymer chitosan (CS) and kaolin solvent-free fluid (kaolin-SF) were used as substitutes for the electrolyte membranes in direct-methanol fuel cells. To improve the interfacial morphologies between organic and inorganic substances, kaolin-SF was prepared using the ion exchange method. Subsequently, kaolin-SF of various doping proportions was mixed with CS crosslinked with sulfuric acid to produce thin membranes. The results of heat exhaustion and scanning electron microscope image analysis indicated that kaolin-SF was successfully doped into the CS polymer substrates, and this addition enhanced the thermal stability and mechanical properties of the CS polymer substrates. As long as the concentration of kaolin-SF was below 5 wt.%, the water absorption rate and proton conductivity of the CS/kaolin-SF composite membranes increased along with the kaolin-SF content. These results indicate that CS/kaolin-SF composite membranes are suitable for practical applications.


1989 ◽  
Vol 38 (11) ◽  
pp. 2037-2055 ◽  
Author(s):  
S. Jönsson ◽  
C. G. Gölander ◽  
A. Biverstedt ◽  
S. Göthe ◽  
P. Stenius

2009 ◽  
Vol 53 (6) ◽  
pp. 22-25
Author(s):  
David Bieniak
Keyword(s):  

2009 ◽  
Vol 144 ◽  
pp. 012051 ◽  
Author(s):  
Erno Soinila ◽  
Parmanand Sharma ◽  
Markku Heino ◽  
Kaj Pischow ◽  
Akihisa Inoue ◽  
...  

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