Proton conduction in biopolymer exopolysaccharide succinoglycan

Jin Jung Kweon, Kyu Won Lee, Hyojung Kim, Cheol Eui Lee, Seunho Jung, Chanho Kwon

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Protonic currents play a vital role in electrical signalling in living systems. It has been suggested that succinoglycan plays a specific role in alfalfa root nodule development, presumably acting as the signaling molecules. In this regard, charge transport and proton dynamics in the biopolymer exopolysaccharide succinoglycan have been studied by means of electrical measurements and nuclear magnetic resonance (NMR) spectroscopy. In particular, a dielectric dispersion in the system has revealed that the electrical conduction is protonic rather electronic. Besides, our laboratory- and rotating-frame 1H NMR measurements have elucidated the nature of the protonic conduction, activation of the protonic motion being associated with a glass transition.

Original languageEnglish
Article number013701
JournalApplied Physics Letters
Volume105
Issue number1
DOIs
Publication statusPublished - 2014 Jul 7

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biopolymers
alfalfa
conduction
nuclear magnetic resonance
protons
nodules
magnetic resonance spectroscopy
electrical measurement
activation
glass
electronics
molecules

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Proton conduction in biopolymer exopolysaccharide succinoglycan. / Kweon, Jin Jung; Lee, Kyu Won; Kim, Hyojung; Lee, Cheol Eui; Jung, Seunho; Kwon, Chanho.

In: Applied Physics Letters, Vol. 105, No. 1, 013701, 07.07.2014.

Research output: Contribution to journalArticle

Kweon, Jin Jung ; Lee, Kyu Won ; Kim, Hyojung ; Lee, Cheol Eui ; Jung, Seunho ; Kwon, Chanho. / Proton conduction in biopolymer exopolysaccharide succinoglycan. In: Applied Physics Letters. 2014 ; Vol. 105, No. 1.
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