scholarly journals Surface modification of polyvinyl chloride towards blood compatibility

1984 ◽  
Vol 6 (6) ◽  
pp. 1087-1091 ◽  
Author(s):  
Geetha Kurian ◽  
Chandra P Sharma
Keyword(s):  
Surface Modification ◽  
Polyvinyl Chloride ◽  
Blood Compatibility

Improving Blood Compatibility of Cardiovascular Devices by Surface Modification

2007 ◽  
pp. 801-804
Author(s):  
Nan Huang ◽  
Ping Yang ◽  
Yong Xiang Leng ◽  
Jun Ying Chen ◽  
Jin Wang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Blood Compatibility ◽  
Cardiovascular Devices

Surface Modification of Copolyether-Urethane Catheters with Poly(Ethylene Oxide)

1989 ◽  
Vol 12 (6) ◽  
pp. 390-394 ◽  
Author(s):  
E. Brinkman ◽  
A. Poot ◽  
T. Beugeling ◽  
L. Van Der Does ◽  
A. Bantjes
Keyword(s):  
Surface Modification ◽  
Ethylene Oxide ◽  
Blood Compatibility ◽  
Angle Measurements ◽  
Fold Reduction ◽  
Contact Angle Measurements ◽  
Platelet Deposition ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Pellethane 2363 80A catheters were modified with poly(ethylene oxide) in order to improve their blood compatibility. Contact angle measurements showed that Pellethane 2363 80A surfaces had increased wettability after this modification. The results of in vitro blood compatibility tests showed that surface modification with poly(ethylene oxide) resulted in a five-fold reduction of platelet deposition. Activation of coagulation was not affected.

Separation of polyvinyl chloride from waste plastic mixtures by froth flotation after surface modification with sodium persulfate

2019 ◽  
Vol 218 ◽  
pp. 167-172 ◽  
Author(s):  
Shuaijun Chen ◽  
Yingshuang Zhang ◽  
Chenchao Guo ◽  
Yiwei Zhong ◽  
Kangyu Wang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Polyvinyl Chloride ◽  
Froth Flotation ◽  
Sodium Persulfate ◽  
Waste Plastic

Facile Surface Modification of Nitinol with Dopamine-Conjugated Hyaluronic Acid for Improving Blood Compatibility

2016 ◽  
Vol 6 (10) ◽  
pp. 780-787 ◽  
Author(s):  
Eugene Lih ◽  
So Yoon Chi ◽  
Tae Il Son ◽  
Yoon Ki Joung ◽  
Dong Keun Han
Keyword(s):  
Surface Modification ◽  
Hyaluronic Acid ◽  
Blood Compatibility

HYDROPHILIZATION OF POLYVINYL CHLORIDE SURFACE BY OZONATION

2008 ◽  
Vol 15 (06) ◽  
pp. 711-715 ◽  
Author(s):  
KEISUKE KUROSE ◽  
TETSUJI OKUDA ◽  
SATOSHI NAKAI ◽  
TSUNG-YUEH TSAI ◽  
WATARU NISHIJIMA ◽  
...  
Keyword(s):  
Surface Modification ◽  
Structural Change ◽  
Polyvinyl Chloride ◽  
Chemical Reaction ◽  
Infrared Analysis ◽  
Xps Analysis ◽  
Carboxylic Groups

The surface modification mechanism of polyvinyl chloride (PVC) by ozonation was investigated to study the selective hydrophilization of PVC surface among other plastics. Infrared analysis confirmed the increase of hydrophilic groups. XPS analysis revealed that the increase was due to the structural change in chlorine group in PVC to hydroxylic acid, ketone, and carboxylic groups by ozonation. This chemical reaction by ozone could occur only for polymers with chlorides in its structure and resulted in the selective hydrophilization of PVC among various polymers.

Facile surface modification of glass with zwitterionic polymers for improving the blood compatibility

2018 ◽  
Vol 5 (6) ◽  
pp. 065401 ◽  
Author(s):  
Lingling Zhang ◽  
Xiaojuan Chen ◽  
Pingsheng Liu ◽  
Jing Wang ◽  
Haomiao Zhu ◽  
...  
Keyword(s):  
Surface Modification ◽  
Blood Compatibility ◽  
Zwitterionic Polymers

AFM and Fractal Analysis of Biomaterial Microtopography

1998 ◽  
Vol 4 (S2) ◽  
pp. 926-927
Author(s):  
S. Jo ◽  
T. Li ◽  
K. Park
Keyword(s):  
Surface Modification ◽  
Self Assembly ◽  
Blood Compatibility ◽  
Carbon Chain ◽  
Atomic Force ◽  
Covalent Grafting ◽  
Biomaterial Surfaces ◽  
Poly Ethylene ◽  
Glass Surfaces

Although significant advances have been made in the development of biocompatible materials, currently available biomaterials still present a number of problems for in vivo applications. One of the attempts to improve the biocompatibility, especially blood-compatibility, of biomaterials has been surface modification. Typically, poly(ethylene glycol) (PEG), albumin, heparin, and phospholipid molecules are grafted to the surface to prevent protein adsorption and cell adhesion. We have been modifying biomaterial surfaces by covalent grafting of PEG and albumin. The control and modified surfaces were examined using an atomic force microscope (AFM). In this study, we examined the surface topography changes by surface modification using PEO grafting to glass as a model system.Glass surfaces were modified with PEO using (N-triethoxysilylpropyl)-Omonomethoxy PEG urethane (PEG-Si), a PEG derivative containing a hydrophobic carbon chain and triethoxysilyl group at one end of the PEG chain. The presence of the hydrophobic carbon chain allowed self-assembly on the surface and triethoxysilyl resulted in covalent bonding to glass surfaces

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