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Here we provide evidence that the formation of PuO 2 nanoparticles from oxidized Pu VI under alkaline conditions proceeds through the formation of an intermediate Pu V solid phase,s imilar to NH 4 PuO 2 CO 3 ,w hich is stable over ap eriod of several months.F or the first time,s tate-of-the-art experiments at Pu M 4 and at L 3 absorption edges combined with theoretical calculations unambiguously allowt od etermine the oxidation state and the local structure of this intermediate phase.Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.org/10.

The last sentence in the abstract reads: ''The phenomenon appears to be similar to that of the colossal magnetoresistance response observed in the Mg perovskite family.'' The sentence should be: ''The phenomenon appears to be similar to that of the colossal magnetoresistance response observed in the Mn perovskite family.''The comparison is made to manganese, Mn, not magnesium, Mg, perovskites.

Synchrotron x-ray diffraction has been used to investigate the mesomorphism of a monoolein-water dispersion under hydrostatic pressure. The results show the existence of a new phase, probably with cubic symmetry, before the transition from the L ␣ to the L c lamellar phase occurs. Changes of the lipid bilayer conformation are discussed and the total energy function for the inverted cubic Ia3d and the lamellar L ␣ mesophase is derived. An estimate of the energy necessary for packing the lipid hydrocarbon chains is given.

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