Results 31 to 40 of about 887,812 (350)

Field-Flow Fractionation Analysis of Complex Biological Samples [PDF]

Kemija u Industriji, 2014
Normal analytical methods have difficulties when analysing complex samples containing particles of different size. In the 1960s, a new analytical technique was developed, which was able to overcome those difficulties.
Mijić, I., Madunić, J., Marinć, S:, Cindrić, M.   +3 more
doaj  

Elution time changes due to anomalous DEP effects in microchannels under uniform and non-uniform electric fields

Sensing and Bio-Sensing Research, 2016
Conventional dielectrophoresis (DEP) force on cell and particle is altered in the proximity of the electrodes due to the failure of the dipole approximation. In these conditions an anomalous DEP (aDEP) force rules the particle manipulation.
Antonino Magliano, Massimo Camarda, Salvatore Francesco Lombardo, Rossana Di Martino, Michele Cascio, Alessandra Romano, Luigi Minafra, Giorgio Russo, Mariacarla Gilardi, Francesco Di Raimondo, Silvia Scalese, Antonino La Magna   +11 more
doaj   +1 more source

Towards a global interpretation of dual nitrate isotopes in surface waters [PDF]

, 2019
Modern anthropogenic activities have significantly increased nitrate (NO3-) concentrations in surface waters. Stable isotopes (delta N-15 and delta O-18) in NO3- offer a tool to deconvolute some of the human-made changes in the nitrogen cycle.
Boeckx, Pascal, Gooddy, DC, Venkiteswaran, JJ   +2 more
core   +2 more sources

Proteins and antibodies in serum, plasma, and whole blood—size characterization using asymmetrical flow field-flow fractionation (AF4)

Analytical and Bioanalytical Chemistry, 2018
The analysis of aggregates of therapeutic proteins is crucial in order to ensure efficacy and patient safety. Typically, the analysis is performed in the finished formulation to ensure that aggregates are not present.
M. Leeman, Jaeyeong Choi, S. Hansson, M. U. Storm, L. Nilsson   +4 more
semanticscholar   +1 more source

Study of the Stability of Citrate Capped AgNPs in Several Environmental Water Matrices by Asymmetrical Flow Field Flow Fractionation

Nanomaterials, 2021
Asymmetrical flow field-flow fractionation (AF4) coupled to UV-Vis and dynamic light scattering (DLS) detectors in series, was tested for stability studies of dispersions of citrate-capped silver nanoparticles (AgNPs) in several water matrices.
Aaron Boughbina-Portolés, Lorenzo Sanjuan-Navarro, Yolanda Moliner-Martínez, Pilar Campíns-Falcó   +3 more
doaj   +1 more source

Controlled Disassembly and Purification of Functional Viral Subassemblies Using Asymmetrical Flow Field-Flow Fractionation (AF4)

Viruses, 2018
Viruses protect their genomes by enclosing them into protein capsids that sometimes contain lipid bilayers that either reside above or below the protein layer.
Katri Eskelin, Minna M. Poranen
doaj   +1 more source

Surfactant flow between a Plateau border and a film during foam fractionation [PDF]

, 2016
A fluid mechanics problem relevant to foam fractionation processes is analysed. Specifically the fluid flow field transporting surfactant from foam Plateau borders (fed with surfactant-rich material) towards comparatively surfactant-lean foam films is ...
Giavedoni, Maria Delia, Grassia, Paul, Martin, Peter James, Ubal, Sebastian, Vitasari, Denny   +4 more
core   +1 more source

Ultrafiltration and size exclusion chromatography combined with asymmetrical-flow field-flow fractionation for the isolation and characterisation of extracellular vesicles from urine

Journal of Extracellular Vesicles, 2018
Extracellular vesicles (EVs) have a great potential in clinical applications. However, their isolation from different bodily fluids and their characterisation are currently not optimal or standardised.
Eline Oeyen, Kurt Van Mol, G. Baggerman, Hanny Willems, K. Boonen, C. Rolfo, P. Pauwels, A. Jacobs, K. Schildermans, W. Cho, I. Mertens   +10 more
semanticscholar   +1 more source

Determining the Elemental and Isotopic Composition of the preSolar Nebula from Genesis Data Analysis: The Case of Oxygen [PDF]

, 2017
We compare element and isotopic fractionations measured in solar wind samples collected by NASA's Genesis mission with those predicted from models incorporating both the ponderomotive force in the chromosphere and conservation of the first adiabatic ...
Burnett, D. S., Guan, Y., Heber, V. S., Hervig, R., Huss, G. R., Jurewicz, A. J. G., Koeman-Shields, E. C., Laming, J. Martin, McKeegan, K. D., Nittler, L. R., Reisenfeld, D. B., Rieck, K. D., Wang, J., Wiens, R. C., Woolum, D. S.   +14 more
core   +3 more sources

Comparison of Miniaturized and Conventional Asymmetrical Flow Field-Flow Fractionation (AF4) Channels for Nanoparticle Separations

Separations, 2017
The performance of a miniaturized channel for the separation of polymer and metal nanoparticles (NP) using Asymmetrical Flow Field-Flow Fractionation (AF4) was investigated and compared with a conventional AF4 system.
Zengchao You, Florian Meier, Steffen Weidner   +2 more
doaj   +1 more source