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Investigation of biomacromolecular assembly: replacement occurring on proteins

โœ Scribed by Hong-Wen Gao; Zhang-Jun Hu; Jian-Fu Zhao

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
349 KB
Volume
376
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The non-chemical bond interaction between small molecule and macromolecule coming from the electrostatic attraction obeys the Langmuir assembly. The interaction of 1,5-di(2-hydroxyl-5-sulfophenyl-)-3-cyanoformazan (DSPCF) and three kinds of proteins: bovine serum albumin (BSA), a-globulins (Gb) and ovalbumin (OVA) at pH 1.83 has been investigated and then sodium dodecyl benzene sulfonate (SDBS) was added to replace the DSPCF binding in protein. The microsurface adsorption-spectral correction (MSASC) technique and the break point approach were both used to characterize the aggregates. Results showed that the products: SDBS 99 BSA, SDBS 50 OVA and SDBS 25 Gb at 30 ยฐC and SDBS 90 BSA, SDBS 40 OVA and SDBS 20 Gb at 40 ยฐC are formed.

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