Spontaneous assembly of redox-active iron-sulfur clusters at low concentrations of cysteine

Autor: Sean F. Jordan, Ioannis Ioannou, Hanadi Rammu, Aaron Halpern, Lara K. Bogart, Minkoo Ahn, Rafaela Vasiliadou, John Christodoulou, Amandine Maréchal, Nick Lane

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-14 (2021)

Iron-sulfur (FeS) proteins are involved in electron transfer and CO2 fixation. Here, the authors show that FeS clusters can form spontaneously in the presence of the amino acid cysteine, in conditions similar those expected in Hadean alkaline hydroth

Externí odkaz: https://doaj.org/article/e8e1ebb68dd64ccea432bb048209f5fe

Prenormative verification and validation of a protocol for measuring magnetite-maghemite ratios in magnetic nanoparticles

Autor: Geraldo Magela da Costa, Jan Żukrowski, Jean-Marc Greneche, Lara K. Bogart, Jeppe Fock, Marcin Sikora, Mikkel Fougt Hansen, Drew E. Latta, Quentin A. Pankhurst, Michelle M. Scherer, Catherine Frandsen, Kerstin Witte

Publikováno v: Bogart, L K, Fock, J, da Costa, G M, Witte, K, Greneche, J-M, Zukrowski, J, Sikora, M, Latta, D E, Scherer, M M, Hansen, M F, Frandsen, C & London, U 2022, ' Prenormative verification and validation of a protocol for measuring magnetite-maghemite ratios in magnetic nanoparticles ', Metrologia, vol. 59, no. 1, 015001 . https://doi.org/10.1088/1681-7575/ac36b6

An important step in establishing any new metrological method is a prenormative interlaboratory study, designed to verify and validate the method against its stated aims. Here, the 57Fe Mössbauer spectrometric ‘centre of gravity’ (COG) method wa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ed6b1b6f21db85c8ea2ac9acd6b2f88
https://orbit.dtu.dk/en/publications/ffb0eb66-7d37-42c0-ad48-b4856aacb7e9

Unravelling the growth mechanism of the co-precipitation of iron oxide nanoparticles with the aid of synchrotron X-Ray diffraction in solution

Autor: Nguyen T. K. Thanh, Asterios Gavriilidis, Aden Hodzic, Alec P. LaGrow, Maximilian O. Besenhard, Andreas Sergides, Lara K. Bogart

Publikováno v: Nanoscale. 11:6620-6628

Co-precipitation is the most ubiquitous method for forming iron oxide nanoparticles. For a typical co-precipitation synthesis, the pH of a ferrous and/or ferric ion solution is increased via the addition of a base. The latter can be added either slow

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59ce99d236b13b66a916eab81b5edd47
https://doi.org/10.1039/c9nr00531e

Spontaneous assembly of iron-sulfur clusters at low concentrations of cysteine

Autor: Ioannis Ioannou, Minkoo Ahn, Nick Lane, John Christodoulou, Sean F. Jordan, Hanadi Rammu, Amandine Maréchal, Aaron Halpern, Rafaela Vasiliadou, Lara K. Bogart

Publikováno v: Goldschmidt2021 abstracts.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ad0a84bf02a129f9fc393eff836c125
https://doi.org/10.7185/gold2021.4810

57Fe Mössbauer study of NiFe2O4 nanoparticles produced by the levitation-jet aerosol technique

Autor: Maksim V. Kuznetcov, Iurii G. Morozov, Ivan P. Parkin, Lara K. Bogart

Publikováno v: Journal of Materials Science: Materials in Electronics. 29:14347-14352

For the first time, Mossbauer parameters of mixed cubic spinel NiFe2O4 nanoparticles, prepared by using a one-stage process via evaporation of levitating iron–nickel droplets into a mix of helium–air gas flow accompanied with the application of a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::157368bbfe29f9c6afb4ed48488a9fd9
https://doi.org/10.1007/s10854-018-9569-z