Sep, 2003
Sol-gel preparation of blood-compatible titania as an adsorbent of bilirubin
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
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- Volume
- 111
- Number
- 9
- First page
- 645
- Last page
- 650
- Language
- English
- Publishing type
- Research paper (scientific journal)
- Publisher
- CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI
This study concerns with the adsorption of pathogenic substances on highly blood-compatible titania and the adsorption mechanism. Titania was prepared through a sol-gel procedure by hydrolyzing tetraethylorthotitanate and calcining up to 705degreesC for 3 h. Pore size distribution and surface charge density were measured as a function of calcining temperature. Adsorption of bilirubin, as a typical pathogenic substance, as well as albumin on the titania powder was studied. Bilirubin was adsorbed either in 4 to 8-nm pores or on the surface with a higher positive charge. Thus, either entrapping bilirubin in the pores or electrostatic interaction between bilirubin and titania surface was effective for the adsorption of bilirubin. The titania powder adsorbed a greater amount of bilirubin than the anion-exchange resin used in clinics, hence they have potential for blood purification therapy.
- Link information
- ID information
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- ISSN : 1882-0743
- eISSN : 1348-6535
- Web of Science ID : WOS:000185298600006