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Spreading and Imbibition of Vesicle Dispersion Droplets on Porous Substrates

Kumar, Abhijeet ; Kleinen, Jochen ; Venzmer, Joachim ; Trybala, Anna ; Starov, Victor ; Gambaryan-Roisman, Tatiana (2023)
Spreading and Imbibition of Vesicle Dispersion Droplets on Porous Substrates.
In: Colloids and Interfaces, 2019, 3 (3)
doi: 10.26083/tuprints-00015683
Article, Secondary publication, Publisher's Version

Copyright Information: CC BY 4.0 International - Creative Commons, Attribution.

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Item Type: Article
Type of entry: Secondary publication
Title: Spreading and Imbibition of Vesicle Dispersion Droplets on Porous Substrates
Language: English
Date: 1 December 2023
Place of Publication: Darmstadt
Year of primary publication: 2019
Place of primary publication: Basel
Publisher: MDPI
Journal or Publication Title: Colloids and Interfaces
Volume of the journal: 3
Issue Number: 3
Collation: 12 Seiten
DOI: 10.26083/tuprints-00015683
Corresponding Links:
Origin: Secondary publication DeepGreen

Vesicles have recently found widespread use in applications such as conditioning of textiles, paper and hair, as well as transdermal drug delivery. The mode of treatment in several such cases involves the application of droplets of aqueous dispersions of vesicles onto dry porous substrates like paper and textiles. One of the factors which affects the performance of such treatments is the rate at which the droplets spread and imbibe on the porous substrate. Depending upon the specific purpose of the treatment either a fast or slow droplet spreading kinetics could be desired. Therefore, it is important to have a good understanding of the droplet spreading process and the factors which influence it. In this work, an experimental investigation of the simultaneous spreading and imbibition of vesicle dispersion droplets on cellulose filter papers is carried out. Two different types of vesicles which are composed of similar lipid molecules but exhibit contrasting lipid bilayer phase behavior are used. Two different grades of filter papers with comparable porosities but different thicknesses are used as porous substrate. It is found that the droplet spreading behavior is of the “complete wetting” type on the thicker porous substrate, whereas it is of the “partial wetting” type on the thinner substrate. Furthermore, it is observed that the spreading of droplets containing vesicles with liquid-crystalline phase bilayers occurs faster than that of vesicles with solid-gel phase bilayers. The secondary radial penetration which commences after the initial droplet spreading is complete is also investigated and discussed.

Uncontrolled Keywords: vesicles, wetting, imbibition
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-156830
Additional Information:

This article belongs to the Special Issue Colloids and Interfaces in Printing Technology

Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering > Institute for Technical Thermodynamics (TTD)
Date Deposited: 01 Dec 2023 14:15
Last Modified: 24 Jan 2024 16:31
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/15683
PPN: 514962860
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