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@ARTICLE{Michels:171851,
author = {Michels, Rolf and Goerigk, Günter and Vainio, Ulla and
Gummel, Jérémie and Huber, Klaus},
title = {{C}oaggregation of {T}wo {A}nionic {A}zo {D}yestuffs: {A}
{C}ombined {S}tatic {L}ight {S}cattering and {S}mall-{A}ngle
{X}-ray {S}cattering {S}tudy},
journal = {The journal of physical chemistry / B},
volume = {118},
number = {27},
issn = {1520-6106},
address = {Washington, DC},
publisher = {Soc.},
reportid = {DESY-2014-03392},
pages = {7618 - 7629},
year = {2014},
abstract = {The formation of azo dyestuff aggregates in dilute aqueous
solution induced by the addition of Mg2+, Ca2+, Sr2+, or
Ba2+ ions is followed by time-resolved static light
scattering (SLS) and time-resolved small-angle X-ray
scattering (SAXS). Time-dependent molar mass data of the
growing aggregates is interpreted by means of a kinetic
model introduced by Lomakin et al. ( Proc. Natl. Acad. Sci.
U.S.A. 1996, 93, 1125) for the description of β-amyloid
aggregation. This interpretation reveals significant trends
within the homologous series of alkaline earth cations. The
trends refer to the nucleation and the growth rate of the
dyestuff fibers. Time-resolved SAXS experiments indicate
that these first two stages are followed by a third one
during which a network forms by partial lateral alignment of
fibers. At high enough dyestuff concentrations, this network
formation even leads to a gel-like phase. Anomalous SAXS
(ASAXS) on such a gel phase formed upon the addition of Sr2+
revealed the extent of neutralization of the dyestuff
molecules within the gel by the specifically interacting
alkaline earth cations.},
cin = {FS-DO / DOOR / HZG},
ddc = {530},
cid = {I:(DE-H253)FS-DO-20120731 / I:(DE-H253)HAS-User-20120731 /
I:(DE-H253)HZG-20120731},
pnm = {DORIS Beamline B1 (POF2-54G13)},
pid = {G:(DE-H253)POF2-B1-20130405},
experiment = {EXP:(DE-H253)D-B1-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000338981200016},
pubmed = {pmid:24937796},
doi = {10.1021/jp502347b},
url = {https://bib-pubdb1.desy.de/record/171851},
}