Kinetics of Desorption of Bovine Serum Albumin from Ozone-Modified Alumina Surfaces during Caustic Alkali Cleaning.
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- FUKUZAKI Satoshi
- Industrial Technology Center of Okayama Prefecture
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- DRANO Hiromi
- Industrial Technology Center of Okayama Prefecture
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- KOIKE Kunihiko
- Shiga Technology Center, Iwatani International Corporation
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- TAKAHASHI Kazuhiro
- Industrial Technology Center of Okayama Prefecture
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- NAGATA Kazuya
- Industrial Technology Center of Okayama Prefecture
Bibliographic Information
- Other Title
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- アルカリ洗浄におけるオゾン改質アルミナ表面からの牛血清アルブミンの脱着速度論
- アルカリ センジョウ ニ オケル オゾン カイシツ アルミナ ヒョウメン カラ ノ ギュウ ケッセイ アルブミン ノ ダッチャク ソクドロン
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Abstract
The kinetics of desorption of bovine serum albumin (BSA) from ozone-modified alumina (Al2O3) particles during caustic alkali cleaning was studied. Al2O3 particles were treated with gaseous ozone generated from pure oxygen at concentrations of 0.05 to 0.2 vol%. As a result of ozone treatment, the absolute values of the surface charge density of Al2O3 particles decreased, with slight shifts in the apparent points of zero charge to the points corresponding to more acidic pH values, and the amount of BSA adsorbed on Al2O3 also decreased. The desorption curve of BSA, which was obtained by plotting the logarithm of the amount of residual BSA versus cleaning time, could be analyzed by the integrated desorption kinetic model which describes two simultaneous first-order reactions. The desorption curves of BSA from non-ozone-treated and ozone-treated particles could apparently be reduced to the sum of two independent first-order reactions occurring simultaneously at different rates, suggesting that a faster-desorbing and slower-desorbing BSA species were present on Al2O3 surfaces. It was found that the effect of ozone modification of Al2O3 surfaces was reflected both by an increase in the desorption rate constant, by one order of magnitude, of a slower-desorbing BSA species and by a decrease in its relative abundance on Al2O3 surfaces.
Journal
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- Journal of The Surface Finishing Society of Japan
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Journal of The Surface Finishing Society of Japan 53 (5), 341-345, 2002
The Surface Finishing Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679090318336
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- NII Article ID
- 10008556650
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- NII Book ID
- AN1005202X
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- COI
- 1:CAS:528:DC%2BD38XlvVCitbg%3D
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- ISSN
- 18843409
- 09151869
- http://id.crossref.org/issn/09151869
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- NDL BIB ID
- 6156960
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed