Intertwining Roles of the Disperse Phase Properties during Emulsification

Langmuir : the ACS Journal of Surfaces and Colloids
Nelmary Roas-EscalonaJhoan Toro-Mendoza

Abstract

The combined effect of viscosity ratio, interfacial tension, and disperse phase density on the process of droplet formation during emulsification was evaluated. For that aim, emulsification by ultrasonication of oil/water systems with viscosity ratios between 1 and 600, with and without surfactant was performed. The time evolution of the average droplet size was estimated by dynamic light scattering measurements. For viscosity ratios between 1 and 200 in the presence of surfactant, our results partly reproduce those of the intriguing U-type reported in the literature. Beyond that range, the droplet size decreases, as the viscosity ratio rises. For surfactant-free systems, the size is slightly affected by the increase in viscosity. This complex scenario is analyzed in terms of both the individual and intertwined roles of interfacial tension, viscosity, and density ratios: (1) if the interfacial tension dominates, the droplet rupturing process is independent of its internal properties, and inversely, (2) if the interfacial tension is low, the internal properties play a major role in the rupturing of the droplet. Finally, we identified a scenario in which the retarded addition of surfactant leads to emulsions with a stability simi...Continue Reading

References

Nov 5, 1990·Physical Review Letters·J BibetteF Nallet
Feb 24, 2001·Advances in Colloid and Interface Science·D Langevin
Apr 10, 2004·Advances in Colloid and Interface Science·Tharwat TadrosC Solans
Feb 23, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·German Urbina-VillalbaMáximo García-Sucre
Nov 23, 2005·Journal of Colloid and Interface Science·Milan Kanti NaskarMinati Chatterjee
Oct 15, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Tim J WoosterPeerasak Sanguansri
Sep 15, 2009·Journal of Colloid and Interface Science·Nikola AlexandrovIvan B Ivanov
Jan 14, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Thomas DelmasJérôme Bibette
Oct 12, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Ankur GuptaPatrick S Doyle
Nov 23, 2017·Physical Chemistry Chemical Physics : PCCP·Wu LiGregory J O Martin

❮ Previous
Next ❯

Citations

Jul 16, 2021·ACS Nano·François Sicard, Jhoan Toro-Mendoza

❮ 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.

© 2022 Meta ULC. All rights reserved