Results 31 to 40 of about 126,847 (331)

Field-Flow Fractionation: A Versatile Technology for Particle Characterization in the Size Range 10-3 to 102 Micrometers

open access: yesKONA Powder and Particle Journal, 2014
This article provides an overview on the use of field-flow fractionation (FFF) for particle size analysis and for the characterization of other particle properties such as density, porosity, and the thickness of ...
J. Calvin Giddings   +2 more
doaj   +1 more source

Characterization of Silver Nanoparticles under Environmentally Relevant Conditions Using Asymmetrical Flow Field-Flow Fractionation (AF4). [PDF]

open access: yesPLoS ONE, 2015
The development of methods to monitor manufactured nanomaterials in the environment is one of the crucial areas for the assessment of their risk. More specifically, particle size analysis is a key element, because many properties of nanomaterial are size
Min-Hee Jang, Seungho Lee, Yu Sik Hwang
doaj   +1 more source

A Unified Picture of the FIP and Inverse FIP Effects [PDF]

open access: yes, 2004
We discuss models for coronal abundance anomalies observed in the coronae of the sun and other late-type stars following a scenario first introduced by Schwadron, Fisk & Zurbuchen of the interaction of waves at loop footpoints with the partially neutral ...
Favata F.   +12 more
core   +2 more sources

Latest improvements in field deployable compound specific isotope analyzer based on quantum cascade lasers and hollow waveguide [PDF]

open access: yes, 2013
In our development of a field deployable infrared isotope ratio spectrometer (IR2) for compound specific isotope analysis (CSIA), the IR2‘s accuracy and stability have reached a stage that small fractionation in reference gas pulses generated as standard
Deev, Andrei, Wu, Sheng
core   +1 more source

Terminology of separation methods (IUPAC Recommendations 2017) [PDF]

open access: yes, 2017
This article has an erratum. Doi: 10.1515/pac-2021-1006Recommendations are given concerning the terminology of methods of separation in analytical chemistry, including chromatography, electromigration techniques, and field-flow fractionation and related ...
Fedotov, Petr S.   +5 more
core   +2 more sources

Nanoparticle separation with a miniaturized asymmetrical flow field-flow fractionation cartridge

open access: yesFrontiers in Chemistry, 2015
Asymmetrical Flow Field-Flow Fractionation (AF4) is a separation technique applicable to particles over a wide size range. Despite the many advantages of AF4, its adoption in routine particle analysis is somewhat limited by the large footprint of ...
David eMüller   +5 more
doaj   +1 more source

Brownian Motion in a Speckle Light Field: Tunable Anomalous Diffusion and Deterministic Optical Manipulation [PDF]

open access: yes, 2013
The motion of particles in random potentials occurs in several natural phenomena ranging from the mobility of organelles within a biological cell to the diffusion of stars within a galaxy.
Gigan, Sylvain   +2 more
core   +2 more sources

Aqueous Dilution of Noble NPs Bulk Dispersions: Modeling Instability due to Dissolution by AF4 and Stablishing Considerations for Plasmonic Assays

open access: yesNanomaterials, 2020
Among different nanomaterials, gold and silver nanoparticles (AuNPs and AgNPs) have become useful tools for a wide variety of applications in general, and particularly for plasmonic assays.
Lorenzo Sanjuan-Navarro   +3 more
doaj   +1 more source

A new way of valorizing biomaterials: the use of sunflower protein for 1 a-tocopherol microencapsulation [PDF]

open access: yes, 2013
Biopolymer based microparticles were efficiently prepared from sunflower protein (SP) wall material and a-tocopherol (T) active core using a spray-drying technique. Protein enzymatic hydrolysis and/or N-acylation were carried out to make some structural
A. Nesterenko   +64 more
core   +4 more sources

Gravitational Field-Flow Fractionation Devices Fabricated via a Hot Embossing/Thermal Bonding Method

open access: yesMicromachines, 2014
A novel hot embossing/low temperature ethanol solvent bonding method for the fabrication of polymethylmethacrylate (PMMA) field flow fractionation devices has been developed.
Kaijun Yang
doaj   +1 more source

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