Results 91 to 100 of about 35,935 (220)

A soil sensing mechanism to reach carbon flux at a country scale

Soil Science Society of America Journal, Volume 90, Issue 3, May/June 2026.
Abstract Soil is the largest terrestrial carbon reservoir and can be a source or sink of CO2 for the atmosphere, depending on management practices. CO2 emissions from the soil surface (FCO2) are directly related to the biological and physicochemical soil properties. Our objective was to estimate and spatialize the net ecosystem production (NEP) for the
Heidy Soledad Rodríguez‐Albarracín, José A. M. Demattê, Miguel Palacio Pelaez Carvalho Neto, Nícolas Augusto Rosin, Carlos Eduardo Pellegrino Cerri, Carlos Antonio da Silva Junior, José R. de Sousa Lima, Eduardo S. de Souza, Mara Regina Moitinho, Aquiles Enrique Darghan Contreras, Paulo Eduardo Teodoro, Rafael Felippe Ratke, Uemeson José dos Santos, Denizard Oresca   +13 more
wiley   +1 more source

Different Routes for Camellia Sinensis–Mediated Synthesis of Iron Oxide Nanoparticles: Structural, Thermal, and Magnetic Properties

ChemistrySelect, Volume 11, Issue 19, 20 May 2026.
Different green‐assisted routes (After Synthesis—ASR; Green Subsequent—SSR; Green in situ—ISSR) using Camellia sinensis to produce functionalized iron‐based oxide nanoparticles with controlled and distinct structural and magnetic properties. ABSTRACT Green‐assisted iron oxide nanoparticles (NPs) were synthesized using Camellia sinensis extract (green ...
Jeferson Marques Santos, Renzo Rueda‐Vellasmin, Juan A. Ramos‐Guivar, Edson C. Passamani   +3 more
wiley   +1 more source

Cryptic Paleomagnetic Complexity in the Ediacaran Egersund Dikes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract The Ediacaran Period (∼635–539 Ma) represents a critical interval in Earth's evolution, yet its paleomagnetic record remains complex and contentious. One of the few Ediacaran paleomagnetic results from Baltica considered robust is a pole from the ca.
Yi Xue, Mathew Domeier, Petter Silkoset, Leandro C. Gallo, Justin A. D. Tonti‐Filippini, Harald J. Walderhaug   +5 more
wiley   +1 more source

Surface coating affects behavior of metallic nanoparticles in a biological environment

Beilstein Journal of Nanotechnology, 2016
Silver (AgNPs) and maghemite, i.e., superparamagnetic iron oxide nanoparticles (SPIONs) are promising candidates for new medical applications, which implies the need for strict information regarding their physicochemical characteristics and behavior in a
Darija Domazet Jurašin, Marija Ćurlin, Ivona Capjak, Tea Crnković, Marija Lovrić, Michal Babič, Daniel Horák, Ivana Vinković Vrček, Srećko Gajović   +8 more
doaj   +1 more source

Magnetic Nanoparticles for Biomedical Purposes: Modern Trends and Prospects

Magnetochemistry, 2020
The presented paper is a review article discussing existing synthesis methods and different applications of nanosized magnetic nanoparticles. It was shown that, in addition to the spectrum of properties typical for nanomaterials (primarily a large ...
Tatyana I. Shabatina, Olga I. Vernaya, Vladimir P. Shabatin, Mikhail Ya. Melnikov   +3 more
doaj   +1 more source

Thirty Femtograms Detection of Iron in Mammalian Cells

, 2012
Inorganic nanomaterials and particles with enhanced optical, mechanical or magnetic attributes are currently being developed for a wide range of applications.
Berret, J. -F., Conjeaud, H., Galimard, A., Montero, D., Ould-Moussa, N., Safi, M.   +5 more
core   +2 more sources

ON FORMATION OF ELECTRICALLY CONDUCTIVE PHASES UNDER ELECTROTHERMAL ACTIVATION OF FERRUGINOUS CARBONATES [PDF]

, 2017
Purpose. Study of the formation of an electrically conductive phase in carbonates using siderite as an example and determination of the temperature dependence of its formation and silicon content during simultaneous heating and the action of a weak ...
Bilan, N.V., Khalyendyk, A.V., Sobolev, V.V.   +2 more
core  

Phase transition in a super superspin glass

, 2013
We here confirm the occurrence of spin glass phase transition and extract estimates of associated critical exponents of a highly monodisperse and densely compacted system of bare maghemite nanoparticles.
Cheong, J. L., De Toro, J. A., Lee, S. S., Mathieu, R., Nordblad, P., Salazar, D.   +5 more
core   +1 more source

Photoreductive Dissolution of Iron Oxides Trapped in Ice and Its Environmental Implications [PDF]

, 2010
The availability of iron has been thought to be a main limiting factor for the productivity of phytoplankton and related with the uptake of atmospheric CO_2 and algal blooms in fresh and sea waters. In this work, the formation of bioavailable iron (Fe(II)
Choi, Wonyong, Hoffmann, Michael R., Kim, Kitae, Park, Byong-Kwon, Yoon, Ho-Il   +4 more
core   +1 more source

Sonochemically assisted synthesis of zinc-doped maghemite

Ultrasonics Sonochemistry, 2008
Nanoparticles of zinc-doped maghemite were prepared using ultrasonic radiation. As a precursor, a suspension of maghemite in an alkaline aqueous solution of zinc nitrate at pH 9 was sonicated. The zinc-doped maghemite nanoparticles were investigated by X-ray diffraction, Mössbauer spectroscopy, high-resolution electron microscopy (HREM) and SQUID ...
M, Drofenik, M, Kristl, D, Makovec, Z, Jaglicić, D, Hanzel   +4 more
openaire   +2 more sources