Distinct critical fluctuations and molecular motions manifest in a model biomembrane

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Lattice dynamics in bis-(n-C16H37NH 3)SnCl6, where the hydrocarbon part is analogous to lipid membrane, was investigated by means of 200 MHz 1H nuclear magnetic resonance. As a result, critical fluctuations and molecular dynamics associated with the phase transitions, an order-disorder and a conformational phase transition, were distinguished in a wide temperature range. The dynamical origin of the critical fluctuations, observed in the long-chain compounds but not in the short-chain compounds, by the laboratory frame spin-lattice relaxation measurements, is revealed and discussed in this work.

Original languageEnglish
Pages (from-to)83-88
Number of pages6
JournalSolid State Communications
Volume133
Issue number2
DOIs
Publication statusPublished - 2005 Jan 1

Fingerprint

Phase transitions
Order disorder transitions
Lattice vibrations
Spin-lattice relaxation
Membrane Lipids
Hydrocarbons
spin-lattice relaxation
lipids
Molecular dynamics
hydrocarbons
Nuclear magnetic resonance
disorders
molecular dynamics
membranes
nuclear magnetic resonance
Temperature
temperature

Keywords

  • D. Phase transition
  • E. Nuclear magnetic resonances

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Distinct critical fluctuations and molecular motions manifest in a model biomembrane. / Lee, Kyu Won; Lee, Cheol Eui; Choi, Jin Young; Kim, Joon.

In: Solid State Communications, Vol. 133, No. 2, 01.01.2005, p. 83-88.

Research output: Contribution to journalArticle

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AB - Lattice dynamics in bis-(n-C16H37NH 3)SnCl6, where the hydrocarbon part is analogous to lipid membrane, was investigated by means of 200 MHz 1H nuclear magnetic resonance. As a result, critical fluctuations and molecular dynamics associated with the phase transitions, an order-disorder and a conformational phase transition, were distinguished in a wide temperature range. The dynamical origin of the critical fluctuations, observed in the long-chain compounds but not in the short-chain compounds, by the laboratory frame spin-lattice relaxation measurements, is revealed and discussed in this work.

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