Characteristics of Complexes Composed of Sodium Hyaluronate and Bovine Serum Albumin.
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Complexes composed of sodium hyaluronate (NaHA) and bovine serum albumin (BSA) were studied to elucidate the exact composition of the complex, the phase separation, the electrophoretic mobility and the size uisng dynamic light scattering (DLS) and electrophoretic ligth scattering (ELS), etc. The phase diagram of the mixed solutions was determined. The complexes were soluble in neutral or weakly acidic pH regions and showed phase separation in the more acidic pH region. From the concentration of Na+ released from NaHA when it binds to BSA, the ratios of BSA to NaHA of the complexes were determined. In the region of soluble complexes, one BSA molecule was determined to bind with 15 carboxylic groups of NaHA and in the region of isoluble complexes to bind with 6 carboxylic groups. At the phase separation point, 117 BSA molecules bound with one NaHA molecule and 17% of the carboxylic groups of NaHA did not contribute to the binding of BSA. The sizes of the complexes decreased form several μm to several hundred nm as the binding ratio of BSA increases. Decreases in the viscosities of the mixed solutions were consistent with the decreases of the sizes. From these results, a model of complex formation is proposed.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 48 (6), 779-783, 2000
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390282679141108736
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- NII論文ID
- 130003948112
- 110003635550
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- NII書誌ID
- AA00602100
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- COI
- 1:CAS:528:DC%2BD3cXjvFGntLo%3D
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- ISSN
- 13475223
- 00092363
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- NDL書誌ID
- 5355107
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- PubMed
- 10866136
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可