Energetics and population of molecules at microscopic liquid and solid surfaces

Hongfei Wang, Elsa C Y Yan, Yan Liu, Kenneth B. Eisenthal

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

A new application of second harmonic generation to selectively probe the surface of microscopic size centrosymmetric structures in centrosymmetric bulk media has been applied to polymer beads in aqueous solution and to oil droplets in an oil/water emulsion. The free energies of adsorption and the surface densities of organic molecules adsorbed from aqueous solution to 1 μm polystyrene bead surfaces and to 230 nm tetradecane oil droplet surfaces have been determined. The potential use of this method as a chemical and biochemical sensor without the need for a fluorescent or magnetic tag is noted.

Original languageEnglish
Pages (from-to)4446-4450
Number of pages5
JournalJournal of Physical Chemistry B
Volume102
Issue number23
Publication statusPublished - Jun 4 1998

Fingerprint

liquid surfaces
solid surfaces
Oils
Molecules
oils
Liquids
beads
molecules
aqueous solutions
Polystyrenes
Harmonic generation
Emulsions
Free energy
emulsions
polystyrene
harmonic generations
Polymers
free energy
Adsorption
adsorption

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Energetics and population of molecules at microscopic liquid and solid surfaces. / Wang, Hongfei; Yan, Elsa C Y; Liu, Yan; Eisenthal, Kenneth B.

In: Journal of Physical Chemistry B, Vol. 102, No. 23, 04.06.1998, p. 4446-4450.

Research output: Contribution to journalArticle

Wang, Hongfei ; Yan, Elsa C Y ; Liu, Yan ; Eisenthal, Kenneth B. / Energetics and population of molecules at microscopic liquid and solid surfaces. In: Journal of Physical Chemistry B. 1998 ; Vol. 102, No. 23. pp. 4446-4450.
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