Surface forces: Changing concepts and complexity with dissolved gas, bubbles, salt and heat

Barry W. Ninham; Richard M. Pashley; Pierandrea Lo Nostro

doi:10.1016/j.cocis.2016.09.003

Surface forces: Changing concepts and complexity with dissolved gas, bubbles, salt and heat

Barry W. Ninham, Richard M. Pashley^*, Pierandrea Lo Nostro

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

57 Citations (Scopus)

Abstract

A number of missing factors influence surface forces strongly; so much so that the classical theory is often irrelevant to the real world. Among these factors, dissolved atmospheric gas or other sparsely soluble solutes play a central role in long range hydrophobic forces. Bubble–bubble interactions exhibit unexplained non-Hofmeister ion specificity. Inhomogeneity in temperature between bubbles and solvent can be used to catalyse high temperature reactions at low temperatures. Further, the additivity of electrostatic and dispersion forces assumed in DLVO theory is inadmissible. It also neglects ion specificity (Hofmeister effects) due to dispersion forces acting on ions. An account is given of these complexities that are missing from classical theories of surface forces. It is shown how these phenomena can be exploited for a range of novel technologies.

Original language	English
Pages (from-to)	25-32
Number of pages	8
Journal	Current Opinion in Colloid and Interface Science
Volume	27
DOIs	https://doi.org/10.1016/j.cocis.2016.09.003
Publication status	Published - 1 Feb 2017

Access to Document

10.1016/j.cocis.2016.09.003

Cite this

@article{ca627029b67c478094aa6900c2cbd009,

title = "Surface forces: Changing concepts and complexity with dissolved gas, bubbles, salt and heat",

abstract = "A number of missing factors influence surface forces strongly; so much so that the classical theory is often irrelevant to the real world. Among these factors, dissolved atmospheric gas or other sparsely soluble solutes play a central role in long range hydrophobic forces. Bubble–bubble interactions exhibit unexplained non-Hofmeister ion specificity. Inhomogeneity in temperature between bubbles and solvent can be used to catalyse high temperature reactions at low temperatures. Further, the additivity of electrostatic and dispersion forces assumed in DLVO theory is inadmissible. It also neglects ion specificity (Hofmeister effects) due to dispersion forces acting on ions. An account is given of these complexities that are missing from classical theories of surface forces. It is shown how these phenomena can be exploited for a range of novel technologies.",

keywords = "Bubbles, DLVO theory, Hofmeister effects, Hydrophobic interaction, Surface forces, van der Waals forces",

author = "Ninham, {Barry W.} and Pashley, {Richard M.} and Nostro, {Pierandrea Lo}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2017",

month = feb,

day = "1",

doi = "10.1016/j.cocis.2016.09.003",

language = "English",

volume = "27",

pages = "25--32",

journal = "Current Opinion in Colloid and Interface Science",

issn = "1359-0294",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Surface forces

T2 - Changing concepts and complexity with dissolved gas, bubbles, salt and heat

AU - Ninham, Barry W.

AU - Pashley, Richard M.

AU - Nostro, Pierandrea Lo

PY - 2017/2/1

Y1 - 2017/2/1

N2 - A number of missing factors influence surface forces strongly; so much so that the classical theory is often irrelevant to the real world. Among these factors, dissolved atmospheric gas or other sparsely soluble solutes play a central role in long range hydrophobic forces. Bubble–bubble interactions exhibit unexplained non-Hofmeister ion specificity. Inhomogeneity in temperature between bubbles and solvent can be used to catalyse high temperature reactions at low temperatures. Further, the additivity of electrostatic and dispersion forces assumed in DLVO theory is inadmissible. It also neglects ion specificity (Hofmeister effects) due to dispersion forces acting on ions. An account is given of these complexities that are missing from classical theories of surface forces. It is shown how these phenomena can be exploited for a range of novel technologies.

AB - A number of missing factors influence surface forces strongly; so much so that the classical theory is often irrelevant to the real world. Among these factors, dissolved atmospheric gas or other sparsely soluble solutes play a central role in long range hydrophobic forces. Bubble–bubble interactions exhibit unexplained non-Hofmeister ion specificity. Inhomogeneity in temperature between bubbles and solvent can be used to catalyse high temperature reactions at low temperatures. Further, the additivity of electrostatic and dispersion forces assumed in DLVO theory is inadmissible. It also neglects ion specificity (Hofmeister effects) due to dispersion forces acting on ions. An account is given of these complexities that are missing from classical theories of surface forces. It is shown how these phenomena can be exploited for a range of novel technologies.

KW - Bubbles

KW - DLVO theory

KW - Hofmeister effects

KW - Hydrophobic interaction

KW - Surface forces

KW - van der Waals forces

UR - http://www.scopus.com/inward/record.url?scp=84993869803&partnerID=8YFLogxK

U2 - 10.1016/j.cocis.2016.09.003

DO - 10.1016/j.cocis.2016.09.003

M3 - Review article

SN - 1359-0294

VL - 27

SP - 25

EP - 32

JO - Current Opinion in Colloid and Interface Science

JF - Current Opinion in Colloid and Interface Science

ER -

Surface forces: Changing concepts and complexity with dissolved gas, bubbles, salt and heat

Abstract

Access to Document

Other files and links

Fingerprint

Cite this