Вплив полівінілпіролідону і поліоксіетилену на адсорбцію білків на поверхні нанокремнезему
The paper studies the effect of modification of the surface of amorphous nonporous high-disperse nano-sized silica (nanosilica) with aprotonic watersoluble polymers – polyvinylpyrrolidone (PVP, M » 12000) and polyethylene oxide (PEO, М = 20000) – o...
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| Date: | 2009 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | Russian |
| Published: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2009
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| Online Access: | https://surfacezbir.com.ua/index.php/surface/article/view/334 |
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| Journal Title: | Surface |
| Download file: |  |
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Surface| Summary: | The paper studies the effect of modification of the surface of amorphous nonporous high-disperse nano-sized silica (nanosilica) with aprotonic watersoluble polymers – polyvinylpyrrolidone (PVP, M » 12000) and polyethylene oxide (PEO, М = 20000) – on its ability of proteins adsorption – gelatine and bovine serum albumin (BSA). The presence of aprotonic watersoluble polymers (PVP, PEO) in a solution was found to diminish the value of adsorption of these proteins on silica surface both at stepwise and simultaneous adsorbate introduction into a suspension. It was established that PVP and PEO was able to displace previously adsorbed protein molecules from the surface layer. |
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