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

Exploring precision polymers to fine-tune magnetic resonance imaging properties of iron oxide nanoparticles

Autor: Joseph C. Bear, Lara K. Bogart, Caroline Bray, Aaron M. King, Gemma-Louise Davies, Stephen Hall, Sébastien Perrier

The use of bio-polymers as stabilising agents for iron oxide-based negative magnetic resonance imaging (MRI) contrast agents has become popular in recent years, however the wide polydispersity of biologically-derived and commercially available polyme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad06c0ddf186e1cfe0a77c1aef5556c8
https://eprints.kingston.ac.uk/id/eprint/45846/1/Bear-J-C-45846-AAM.pdf

Enhancing the Magnetic Heating Capacity of Iron Oxide Nanoparticles through Their Postproduction Incorporation into Iron Oxide–Gold Nanocomposites

Autor: Paul Southern, Lara K. Bogart, Gavin R. Bell, Malini Olivo, Quentin A. Pankhurst, Ivan P. Parkin

Publikováno v: European Journal of Inorganic Chemistry. 2017:2386-2395

Small variations in the synthesis conditions of iron oxide–gold nanocomposites, made in an aqueous medium by a coprecipitation reaction, have a significant effect on the magnetic‐heating properties of the iron oxide nanoparticles. Citric acid coa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::902fd26d059ef914297637dace5bba67
https://doi.org/10.1002/ejic.201601432