TY  - JOUR
A1  - Kretzschmar, Jerome
A1  - Haubitz, Toni
A1  - Huebner, Rene
A1  - Weiss, Stephan
A1  - Husar, Richard
A1  - Brendler, Vinzenz
A1  - Stumpf, Thorsten
T1  - Network-like arrangement of mixed-valence uranium oxide nanoparticles after glutathione-induced reduction of uranium(VI)
JF  - Chemical communications
N2  - Glutathione (GSH), a ubiquitous intracellular reducing tripeptide, is able to reduce hexavalent uranium, U(VI), to its tetravalent form, U(IV), in aqueous media in vitro, inducing the formation of nanocrystalline mixed-valence uranium oxide particles. After the initial reduction to U(V) and subsequent dismutation, the yielded U(IV) rapidly hydrolyses under near-neutral conditions forming 2-5 nm sized nanoparticles. The latter further aggregate to 20-40 nm chain-like building blocks that finally arrange as network-like structures.
Y1  - 2018
U6  - https://doi.org/10.1039/c8cc02070a
SN  - 1359-7345
SN  - 1364-548X
VL  - 54
IS  - 63
SP  - 8697
EP  - 8700
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  - 
TY  - GEN
A1  - Schott, Juliane
A1  - Kretzschmar, Jerome
A1  - Acker, Margret
A1  - Eidner, Sascha
A1  - Kumke, Michael Uwe
A1  - Drobot, Björn
A1  - Barkleit, Astrid
A1  - Taut, Steffen
A1  - Brendler, Vinzenz
A1  - Stumpf, Thorsten
T1  - Formation of a Eu(III) borate solid species from a weak Eu(III) borate complex in aqueous solution
N2  - In the presence of polyborates (detected by 11B-NMR) the formation of a weak Eu(III) borate complex (lg β11 ∼ 2, estimated) was observed by time-resolved laser-induced fluorescence spectroscopy (TRLFS). This complex is a precursor for the formation of a solid Eu(III) borate species. The formation of this solid in solution was investigated by TRLFS as a function of the total boron concentration: the lower the total boron concentration, the slower is the solid formation. The solid Eu(III) borate was characterized by IR spectroscopy, powder XRD and solid-state TRLFS. The determination of the europium to boron ratio portends the existence of pentaborate units in the amorphous solid.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 277 
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-98774
ER  - 
TY  - JOUR
A1  - Schott, Juliane
A1  - Kretzschmar, Jerome
A1  - Acker, Margret
A1  - Eidner, Sascha
A1  - Kumke, Michael Uwe
A1  - Drobot, Bjoern
A1  - Barkleit, Astrid
A1  - Taut, Steffen
A1  - Brendler, Vinzenz
A1  - Stumpf, Thorsten
T1  - Formation of a Eu(III) borate solid species from a weak Eu(III) borate complex in aqueous solution
JF  - Dalton transactions : a journal of inorganic chemistry, including bioinorganic, organometallic, and solid-state chemistry
N2  - In the presence of polyborates (detected by B-11-NMR) the formation of a weak Eu(III) borate complex (lg beta(11) similar to 2, estimated) was observed by time-resolved laser-induced fluorescence spectroscopy (TRLFS). This complex is a precursor for the formation of a solid Eu(III) borate species. The formation of this solid in solution was investigated by TRLFS as a function of the total boron concentration: the lower the total boron concentration, the slower is the solid formation. The solid Eu(III) borate was characterized by IR spectroscopy, powder XRD and solid-state TRLFS. The determination of the europium to boron ratio portends the existence of pentaborate units in the amorphous solid.
Y1  - 2014
U6  - https://doi.org/10.1039/c4dt00843j
SN  - 1477-9226
SN  - 1477-9234
VL  - 43
IS  - 30
SP  - 11516
EP  - 11528
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  -