Abstract
The notion of three-phase (line) tension remains one of the most disputable notions in surface science. A very broad range of its values has been reported. Experts even do not agree on the sign of line tension. The polymer-chain-like model of three-phase (triple) line enables rough estimation of entropic input into the value of line tension, estimated as , where is the diameter of the liquid molecule. The introduction of the polymer-chain-like model of the triple line is justified by the “water string” model of the liquid state, predicting strong orientation effects for liquid molecules located near hydrophobic moieties. The estimated value of the entropic input into the line tension is close to experimental findings, reported by various groups, and seems to be relevant for the understanding of elastic properties of biological membranes.
Highlights
Surface tension is due to the special energy state of the molecules at a solid or liquid surface [1,2,3,4].Molecules located at the triple line where solid, liquid, and gaseous phases meet are in an unusual energy state [1,2,3,4]
The notion of line tension is revisited
It is suggested that the line tension is built from “interaction” and “entropic” contribution, which are usually unseparated under calculation of the three-phase tension
Summary
Surface tension is due to the special energy state of the molecules at a solid or liquid surface [1,2,3,4]. In the present article we try to estimate the role of article (density functional theory) simulations is not a trivial task [19,20] Nosonovsky in his recent the entropy contribution in constituting line (three-phase) tension. We will try to perform a rough estimation arising at the liquid/liquid/vapor boundary [12,18] and giant biological vesicles, where a lipid bilayer of input of the entropy factors in the entire value of the line tension. The input of entropy-inspired factors into the line tension may be not negligible, as has been suggested for membranes of biological vesicles [9] At first glance, it seems that the phenomenon of line tension inherent for three-phase systems (liquid lens and sessile droplets) and twin-phase biological vesicles are quite different. It is reasonable to suggest that the polymer-chain model is applicable to biological membranes built from phospholipid molecules containing two hydrophobic fatty acid "tails", promoting orientation effects [25,26,27]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
