Results 101 to 110 of about 3,194 (260)

Effect of Zinc Oxide Nanoparticles From Infant Formula Milk Powder on Colon Cells In Vitro

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Zinc is an essential trace element that participates in numerous metabolic processes; however, excessive exposure may interfere with the absorption of other metals, such as copper. In recent years, nanotechnology has experienced rapid growth, and zinc oxide nanoparticles (ZnO NPs) have garnered significant attention due to their versatile ...
Gloria Salinas‐Lucero   +2 more
wiley   +1 more source

Liquid‐Processed 2D Aromatic Amorphous Carbon: Defect Engineering and Universal Transport Scaling

open access: yesSmall, EarlyView.
Liquid‐processed graphene oxide (GO) thin films undergo a controllable crystalline–to–amorphous transition driven by thermal quenching. By kinetically tuning oxygen‐driven defect formation during reduction, scalable 2D aromatic amorphous carbon phases are stabilized, directly linking nanoscale disorder and defect topology to electronic transport ...
Fabiola Liscio   +22 more
wiley   +1 more source

Spin Hall and longitudinal conductivity of a conserved spin current in two dimensional heavy-hole gases

open access: yes, 2009
The spin Hall and longitudinal conductivity of a 2D heavy-hole gas with {\it k}-cubic Rashba and Dresselhaus spin-orbit interaction is studied in the ac frequency domain.
Arturo Wong   +2 more
core   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

open access: yesSmall, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva   +8 more
wiley   +1 more source

Nanocatalizadores para la producción de energías limpias

open access: yesMundo Nano, 2016
En este trabajo se discute brevemente la importancia de la nanotecnología para el desarrollo de materiales aplicados hacia la obtención de energías limpias. Las aplicaciones de los nanomateriales tienen un amplio espectro, desde la producción de energía
Trino A. Zepeda   +4 more
doaj   +1 more source

Qualitative Evaluation of the Magnetocrystalline Anisotropy in Spinel Ferrite Nanoparticles Using Polarized Neutron Powder Diffraction

open access: yesSmall, EarlyView.
Polarized neutron powder diffraction is used to qualitatively probe the magnetocrystalline anisotropy of cobalt‐doped ferrite nanoparticles. The analysis of local magnetic susceptibility tensors and magnetization ellipsoids reveals how cobalt incorporation modifies both the magnitude and orientation of anisotropy, providing a new approach to compare ...
Igor V. Golosovsky   +9 more
wiley   +1 more source

Modelo dominante y variaciones nacionales en el diseño de políticas de investigación en favor de la innovación tecnológica: una aproximación comparativa de los dispositivos de apoyo a la nanociencia y nanotecnología en Argentina y Francia [PDF]

open access: yes, 2014
El objetivo de este texto es cuestionar el carácter global del proceso que conduce a la puesta en marcha de políticas de investigación en favor de la innovación tecnológica.
Hubert, Matthieu Pierre
core  

Beuys sintético: sobre los nanomateriales y la estética de la imperceptibilidad [PDF]

open access: yes, 2015
Aquest treball centra l'atenció sobre la paradoxal naturalesa dels nanoobjectes i analitza la relació entre una matèria imperceptible (massa petita per ser percebuda pels sentits) i les seves formes de manifestació ostensibles.El desenvolupament de les ...
Heinzel, Tincuta
core  

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

open access: yesAdvanced Materials, Volume 38, Issue 25, 4 May 2026.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz   +14 more
wiley   +1 more source

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