Asymmetrical flow field-flow fractionation for human serum albumin based nanoparticle characterisation and a deeper insight into particle formation processes.
Asymmetrical flow field-flow fractionation for human serum albumin based nanoparticle characterisation and a deeper insight into particle formation processes.
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基于人血清白蛋白的纳米颗粒表征的不对称流场流分级分离以及对颗粒形成过程的更深入了解
DOI:
10.1016/j.chroma.2014.04.048
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Langer
中科院分区:
文献类型:
--
作者:
Langer
Nanoparticles used as drug delivery systems are of growing interest in the pharmaceutical field. Understanding the behaviour and effects of nanosystems in the human body is dependent on comprehensive characterisation of the systems especially with regard to size and size distribution. Asymmetrical flow field-flow fractionation (AF4) is a promising method for this challenge as this technique enables chromatographic separation of particles and solute molecules according to their respective size.Within this study AF4 was used for the characterisation of human serum albumin (HSA) based nanoparticles. In a first part, the most important aspects of method development like the choice of cross flow rate, focusing and the increase of sample concentration via outlet stream splitting on the sample separation were evaluated. Sample fractionation was controlled by inline-coupling of a dynamic light scattering detector (DLS, Zetasizer) and was confirmed by DLS batch mode measurements. In a second part the applicability of field-flow fractionation for characterisation of the HSA particle formation process by a desolvation method was evaluated. A time dependent particle formation was observed which was controlled by the amount of desolvating agent. Furthermore, field-flow fractionation in combination with in-line dynamic light scattering was used to monitor the increase of particle diameter during PEGylation of the resulting HSA nanoparticles. The separation of nanoparticles from dissolved polyethylene glycol (PEG) could successfully be used for determination of the particles’ PEGylation degree.
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DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
R. Finsy;N. D. Jaeger;R. Sneyers;E. Geladé
通讯作者:
E. Geladé
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
R. Finsy;N. D. Jaeger
通讯作者:
N. D. Jaeger
影响因子:
4.1
作者:
Bengt Wittgren;K. Wahlund
通讯作者:
K. Wahlund
影响因子:
5.4
作者:
J. Giddings;F. Yang;M. N. Myers
通讯作者:
M. N. Myers
DOI:
10.1016/j.ejpb.2009.02.002
发表时间:
2009-06-01
影响因子:
4.9
作者:
Holzer, Melisande;Vogel, Vitali;Langer, Klaus
通讯作者:
Langer, Klaus