Results 71 to 80 of about 20,977 (223)

Carbon Dot-Mediated Capillary Electrophoresis Separations of Metallated and Demetallated Forms of Transferrin Protein

open access: yesMolecules, 2019
Carbon dots (CDs) are fluorescent nanomaterials used extensively in bioimaging, biosensing and biomedicine. This is due in large part to their biocompatibility, photostability, lower toxicity, and lower cost, compared to inorganic quantum dots or organic
Leona R. Sirkisoon   +3 more
doaj   +1 more source

Functional and structural mimics of superoxide dismutase enzymes [PDF]

open access: yes, 2008
Superoxide dismutase (SOD) enzymes form important defence line in living organisms. Through a dismutation reaction they transform the highly reactive superoxide radical ion to oxygen and hydrogen peroxide.
Pálinkó, István
core  

Arbuscular Mycorrhiza Modulates Iron Distribution and Vacuolar Iron Transporter Expression in Tomato, Whereas Iron Limitation Reduces Mycorrhization

open access: yesPlant, Cell &Environment, Volume 49, Issue 6, Page 3290-3305, June 2026.
ABSTRACT Plants have evolved highly efficient strategies to maintain iron (Fe) homeostasis. In this study, we investigate the impact of arbuscular mycorrhizal (AM) symbiosis on the Fe‐deficiency response and ionomic profile of tomato plants, as well as how Fe availability affects AM symbiosis.
Víctor M. López‐Lorca   +3 more
wiley   +1 more source

Rational Design of Artificial Metalloproteins and Metalloenzymes with Metal Clusters

open access: yesMolecules, 2019
Metalloproteins and metalloenzymes play important roles in biological systems by using the limited metal ions, complexes, and clusters that are associated with the protein matrix.
Ying-Wu Lin
doaj   +1 more source

Polyoxometalates for Health, Electronics, Energy, and the Environment: Challenges, Opportunities, and Future Horizons

open access: yesChemistryEurope, Volume 4, Issue 5, May 2026.
Polyoxometalates (POMs), illustrated as lemon‐like cars racing along a winding road, symbolize the accelerating progress of POM research toward technological applications. Global research communities, recent advances, and emerging opportunities highlight how coordinated efforts drive the transition of POM science from molecular discovery to deployable ...
Kirill Monakhov   +15 more
wiley   +1 more source

Proton NMR Spectroscopy as a Probe of Dinuclear Copper(II) Active Sites in Metalloproteins. Characterization of the Hyperactive Copper(II)-Substituted Aminopeptidase from \u3cem\u3eAeromonas proteolytica\u3c/em\u3e [PDF]

open access: yes, 1998
Proton NMR spectra of the hyperactive Cu(II)-substituted aminopeptidase from Aeromonas proteolytica (AAP) were recorded in both H2O and D2O buffered solution at pH 6.7.
Bennett, Brian   +3 more
core   +1 more source

Anisotropic valence-->core x-ray fluorescence from a [Rh(en)3][Mn(N)(CN)5]·H2O single crystal: Experimental results and density functional calculations [PDF]

open access: yes, 2002
High resolution x-ray fluorescence spectra have been recorded for emission in different directions from a single crystal of the compound [Rh(en)3][Mn(N)(CN)5]·H2O.
Borovskii I. B.   +8 more
core   +1 more source

Deep Proteomic Profiles of the Antarctic Diatom Fragilariopsis Cylindrus Under Varying Iron and Manganese Conditions

open access: yesPROTEOMICS, Volume 26, Issue 5, Page 112-119, May 2026.
ABSTRACT Fragilariopsis cylindrus is a key diatom in the Southern Ocean, where low iron and manganese availability constrain primary production and biogeochemical activity. The molecular mechanisms used by polar diatoms, including F. cylindrus, to cope with trace metal limitations remain largely unexplored.
Loay J. Jabre   +3 more
wiley   +1 more source

Interpreting iron studies [PDF]

open access: yes, 2017
No abstract ...
Kelly, Alison U.   +3 more
core   +1 more source

Radiation damage in sub‐Ångström resolution macromolecular crystallography: a low‐dose study

open access: yesActa Crystallographica Section D, Volume 82, Issue 5, Page 484-491, May 2026.
This first systematic radiation‐damage study at 0.55 Å resolution reveals extensive small conformational changes in response to dose. The findings demonstrate the benefits of using large crystals fully bathed in a large `top‐hat' beam with a uniform fluence profile, together with low‐dose data‐collection protocols, for sub‐Ångström structure ...
Gleb Bourenkov   +7 more
wiley   +1 more source

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