Analytical Ultracentrifugation

被引:4
作者
Coelfen, Helmut [1 ]
机构
[1] Univ Konstanz, D-7750 Constance, Germany
关键词
Analytical ultracentrifugation; Gosting fujita lechner method; Lamm equation solutions; Nanoparticles; Particle size distribution; Time derivative method; Two dimensional spectrum analysis; Van Holde-Weischet;
D O I
10.1002/mabi.201000201
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Sedimentation analysis of nanoparticle (ZrO2 and SiO2) suspensions of different particle sizes in various solvents as nanoparticle model systems was carried out using interference optics in their morphology: SiO2 particles were the analytical ultracentrifuge. The particles differed in spherical, whereas ZrO2 particles were in one case spherical and in the second case non-spherical and spherical. Different analysis programs, based on different principles of data analysis, were used for the evaluation of the size distributions of these particles, viz. SEDFIT [ls-g*(s), c(s)], Ultra Scan (vHW, 2DSA-MC), SedAnal (dcdt) and VelXLAI (GFL) method and SedAnal, in order to ascertain the benefits and limitations of these analysis methods in characterising the examined nanoparticles.
引用
收藏
页码:687 / 688
页数:2
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