Determination of nanoparticle diffusion coefficients by Taylor dispersion analysis using a capillary electrophoresis instrument

Journal of Chromatography. a
Fanny d'OrlyéPierre Gareil

Abstract

The collective diffusion coefficient D(C) of diluted suspensions of positively charged iron oxide maghemite particles was experimentally investigated using a capillary electrophoresis instrument on the grounds of Taylor dispersion theory. Conditions for this approach to be applicable to nanoparticles of mean solid diameter below 10nm were set in this work, enabling precisions on D(C) determination of less than 2% relative standard deviation (RSD). Significantly different D(C) values were thus measured for particle populations differing in solid number mean diameter by only 2 nm. The obtained values were compared to the z-average diffusion coefficient derived from dynamic light scattering (DLS) experiments and used for the calculation of the Stokes radius. The measured diffusion coefficients appeared to be dependent on particle volume fraction and electrolyte ionic strength. These observations were eventually discussed in terms of particle interactions.

References

Jan 27, 1998·Journal of Colloid and Interface Science·B M Belongia, J C Baygents
Dec 1, 1985·Physical Review A: General Physics·M Medina-Noyola, A Vizcarra-Rendón
Jun 14, 2003·Journal of Colloid and Interface Science·M Tirado-MirandaR Hidalgo-Alvarez

❮ Previous
Next ❯

Citations

Nov 7, 2008·Analytical and Bioanalytical Chemistry·Marinella FarréDamià Barceló
Feb 15, 2011·Analytical and Bioanalytical Chemistry·Petr S FedotovBoris Ya Spivakov
Mar 17, 2012·Journal of Chromatography. a·Joseph ChamiehHervé Cottet
Dec 27, 2011·Journal of Pharmaceutical and Biomedical Analysis·Fengbin YeJesper Østergaard
Dec 4, 2015·Biomacromolecules·Joseph ChamiehHervé Cottet
Jul 15, 2015·Analytical Chemistry·Seyi Latunde-DadaOksana Iryna Leszczyszyn
Jul 21, 2015·Journal of Chromatography. a·Seyi Latunde-DadaOksana Iryna Leszczyszyn
Dec 23, 2011·Journal of Colloid and Interface Science·Fanny d'Orlyé, Pascal E Reiller
Jun 18, 2014·Analytical Chemistry·Luca CipellettiHervé Cottet
Oct 25, 2016·Journal of Chromatography. a·Seyi Latunde-DadaDavid Goodall
May 23, 2017·Analytical Chemistry·Phoonthawee SaetearHervé Cottet
Jul 1, 2017·Electrophoresis·Vojtech Adam, Marketa Vaculovicova
May 30, 2009·Journal of Separation Science·Noumie Surugau, Pawel L Urban
Jan 24, 2020·Small·Patricia Taladriz-BlancoSandor Balog
Jun 12, 2010·Analytical Chemistry·Anna BielejewskaRobert Hołyst
Mar 6, 2010·Journal of the American Chemical Society·Henrik Jensen, Jesper Østergaard
May 18, 2021·Analytical Methods : Advancing Methods and Applications·Meagan R Moser, Christopher A Baker
Mar 19, 2013·Analytical Chemistry·Anna LewandrowskaRobert Hołyst
Dec 18, 2018·Analytical Chemistry·Philipp LemalSandor Balog
Jul 13, 2017·Analytical Chemistry·Akram Khodabandehloo, David D Y Chen
Dec 10, 2019·Analytical Chemistry·Patricia Taladriz-BlancoSandor Balog
Jun 28, 2019·Analytical Chemistry·Patricia Taladriz-BlancoSandor Balog

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.