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 Γen ≅ kBT/dm ≅ 10-11N, where dm 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.
Original language | English |
---|---|
Article number | 712 |
Journal | Entropy |
Volume | 20 |
Issue number | 9 |
DOIs | |
State | Published - 16 Sep 2018 |
Keywords
- Entropic contribution
- Entropic force
- Hydrophobic substrate
- Line tension
- Orientation effect
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy