Results 1 to 10 of about 2,151,231 (273)

Surface Screening Charge and Effective Charge [PDF]

open access: yesPhysical Review Letters, 1998
The charge on an atom at a metallic surface in an electric field is defined as the field-derivative of the force on the atom, and this is consistent with definitions of effective charge and screening charge. This charge can be found from the shift in the
D. L. Mills   +28 more
core   +2 more sources

The surface charge of trypanosomatids [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2002
The surface charge of trypanosomatids was evaluated by means of the binding of cationic particles, as visualized by electron microscopy and by direct measurements of the electrophoretic mobility of cells.
SOUTO-PADRÓN THAÏS
doaj   +5 more sources

Plasma-Engineered PDRN: Surface Charge Neutralization and Nanosizing Enhance Uptake and Regeneration Potential [PDF]

open access: yesPharmaceutics
Background: Polydeoxyribonucleotide (PDRN) is increasingly used in dermatology and cosmetic applications owing to its regenerative and anti-aging properties.
Sun Ju Park   +7 more
doaj   +2 more sources

Surface Charge Affects the Intracellular Fate and Clearance Dynamics of CdSe/ZnS Quantum Dots in Macrophages [PDF]

open access: yesNanomaterials
The biological effects of nanoparticles are closely related to their intracellular content and location, both of which are influenced by various factors. This study investigates the effects of surface charge on the uptake, intracellular distribution, and
Yuan-Yuan Liu   +5 more
doaj   +2 more sources

Simulating Surface Charge Dynamics [PDF]

open access: yesIEEE Transactions on Dielectrics and Electrical Insulation, 2021
Surface charge dynamics can play an important role in electric field distributions in both AC and DC insulation systems. In this paper the theory behind surface charge dynamics is introduced with a particular focus on the calculation of surface divergence; an operator which is used to determine movement of charge constrained to a surface.
Callender, George   +2 more
openaire   +2 more sources

Mapping Surface Charge Distribution of Single-Cell via Charged Nanoparticle

open access: yesCells, 2021
Many bio-functions of cells can be regulated by their surface charge characteristics. Mapping surface charge density in a single cell’s surface is vital to advance the understanding of cell behaviors.
Leixin Ouyang   +4 more
doaj   +1 more source

SIGNIFICANCE OF SOIL DEVELOMENT AND IRON OXIDES CONTENT ON PROPERTIIES OF PERMENANT CHARGE ON CLAY SURFACES IN SOME SELECTED SOILS FROM NORTHERN IRAQ [PDF]

open access: yesMesopotamia Journal of Agriculture, 2019
The study was conducted on nine clay samples collected from three different soils of northern Iraq (Mukhmour, Shikhan and Zakho) which varied in climatic conditions (precipitations and temperatures).Permanent surface charge on clay surfaces was measured ...
Saleh Mawlood, Qahtan D. Essa
doaj   +1 more source

Nebulization of model hydrogel nanoparticles to macrophages at the air-liquid interface

open access: yesFrontiers in Chemical Engineering, 2023
Introduction: Nanoparticle evaluation within the pulmonary airspace has increasingly important implications for human health, with growing interest from drug delivery, environmental, and toxicology fields.
Emma R. Sudduth   +5 more
doaj   +1 more source

Charged nanorods at heterogeneously charged surfaces [PDF]

open access: yesThe Journal of Chemical Physics, 2018
We study the spatial and orientational distribution of charged nanorods (rodlike counterions) as well as the effective interaction mediated by them between two plane-parallel surfaces that carry fixed (quenched) heterogeneous charge distributions. The nanorods are assumed to have an internal charge distribution, specified by a multivalent monopolar ...
Ali Naji   +3 more
openaire   +2 more sources

Synergistic Correlation in the Colloidal Properties of TiO2 Nanoparticles and Its Impact on the Photocatalytic Activity

open access: yesInorganics, 2022
In this work, the relationship between the photodegradation rate of methylene blue (MB) and the effective surface charge of titania nanoparticles (TiO2 NPs) in an aqueous solution is addressed.
María Concepción Ceballos-Chuc   +5 more
doaj   +1 more source

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