NMR study of the adsorption-desorption kinetics of dissolved tetraalanine in MCM-41 mesoporous material

Silvia Pizzanelli; Shifi Kababya; Veronica Frydman; Miron Landau; Shimon Vega

doi:10.1021/jp044389e

NMR study of the adsorption-desorption kinetics of dissolved tetraalanine in MCM-41 mesoporous material

Silvia Pizzanelli, Shifi Kababya, Veronica Frydman, Miron Landau, Shimon Vega

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

In this study we show how deuterium magic-angle spinning NMR spectroscopy can be used to investigate the adsorption-desorption kinetics of molecules in solution at surface-liquid interfaces. An aqueous solution of deuterium-labeled tetraalanine is inserted in the pores of MCM-41 mesoporous material, and its ²H MAS NMR spectrum is measured as a function of temperature and fraction of filling of the pores. Prior to this study, the different types of water in MCM-41 are characterized as a function of water loading of the pores. Analysis of ²H MAS sideband line shapes enabled the determination of the adsorption and desorption rates and the activation energies of desorption.

Original language	English
Pages (from-to)	8029-8039
Number of pages	11
Journal	Journal of Physical Chemistry B
Volume	109
Issue number	16
DOIs	https://doi.org/10.1021/jp044389e
State	Published - 28 Apr 2005

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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abstract = "In this study we show how deuterium magic-angle spinning NMR spectroscopy can be used to investigate the adsorption-desorption kinetics of molecules in solution at surface-liquid interfaces. An aqueous solution of deuterium-labeled tetraalanine is inserted in the pores of MCM-41 mesoporous material, and its 2H MAS NMR spectrum is measured as a function of temperature and fraction of filling of the pores. Prior to this study, the different types of water in MCM-41 are characterized as a function of water loading of the pores. Analysis of 2H MAS sideband line shapes enabled the determination of the adsorption and desorption rates and the activation energies of desorption.",

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T1 - NMR study of the adsorption-desorption kinetics of dissolved tetraalanine in MCM-41 mesoporous material

AU - Pizzanelli, Silvia

AU - Kababya, Shifi

AU - Frydman, Veronica

AU - Landau, Miron

AU - Vega, Shimon

PY - 2005/4/28

Y1 - 2005/4/28

N2 - In this study we show how deuterium magic-angle spinning NMR spectroscopy can be used to investigate the adsorption-desorption kinetics of molecules in solution at surface-liquid interfaces. An aqueous solution of deuterium-labeled tetraalanine is inserted in the pores of MCM-41 mesoporous material, and its 2H MAS NMR spectrum is measured as a function of temperature and fraction of filling of the pores. Prior to this study, the different types of water in MCM-41 are characterized as a function of water loading of the pores. Analysis of 2H MAS sideband line shapes enabled the determination of the adsorption and desorption rates and the activation energies of desorption.

AB - In this study we show how deuterium magic-angle spinning NMR spectroscopy can be used to investigate the adsorption-desorption kinetics of molecules in solution at surface-liquid interfaces. An aqueous solution of deuterium-labeled tetraalanine is inserted in the pores of MCM-41 mesoporous material, and its 2H MAS NMR spectrum is measured as a function of temperature and fraction of filling of the pores. Prior to this study, the different types of water in MCM-41 are characterized as a function of water loading of the pores. Analysis of 2H MAS sideband line shapes enabled the determination of the adsorption and desorption rates and the activation energies of desorption.

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JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 16

ER -

NMR study of the adsorption-desorption kinetics of dissolved tetraalanine in MCM-41 mesoporous material

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