期刊
INORGANICS
卷 6, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/inorganics6040112
关键词
polyoxometalates; zirconium; micelles; DOSY; surfactant; fluorescence; critical micellar concentration; micelle size
资金
- Science Foundation Flanders (FWO)
- Science Foundation Flanders (FWO) [166497/12Y9218N]
- KU Leuven
The catalytic fragmentation of hydrophobic proteins by polyoxometalates (POMs) requires the presence of surfactants in order to increase the solubility of the protein. Depending on the nature of the surfactant, different effects on the kinetics of protein hydrolysis are observed. As the molecular interactions between the POMs and surfactants in solutions have been scarcely explored, in this study, the interaction between the catalytically active Keggin polyoxometalate [Zr(-PW11O39)(2)](10-) and four different surfactantssodium dodecyl sulfate (SDS), dodecyldimethyl(3-sulfopropyl)ammonium (Zw3-12), dodecyldimethyl(3-sulfopropyl) ammonium (CHAPS), and polyethylene glycol tert-octylphenyl ether (TX-100)have been studied in aqueous media. The effect of polyoxometalate on the self-assembly of surfactant molecules into micelles and on the critical micellar concentration (CMC) has been examined by fluorescence spectroscopy and diffusion ordered NMR spectroscopy (DOSY).
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