Direct measurement of surface forces between monolayers of anchored poly(L-glutamic acid)

Takashi Abe; Kazue Kurihara; Nobuyuki Higashi; Masazo Niwa

doi:10.1021/j100007a003

Direct measurement of surface forces between monolayers of anchored poly(L-glutamic acid)

Takashi Abe, Kazue Kurihara, Nobuyuki Higashi, Masazo Niwa

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

26 Citations (Scopus)

Abstract

Interactions between apposed poly(L-glutamic acid) monolayers in water were investigated by direct surface force measurements. The average degree of polymerization was 21. Surface force profiles consisted of a long-range electrostatic repulsion and a short-range steric repulsion. Secondary structures of the polypeptide were found to determine the short-range steric repulsion. The elastic compressibility moduli of the polypeptide monolayers were obtained to be 5.6 ± 2.2 MPa for the β₂-structure-rich layer and 0.2 ± 0.1 MPa for the layer of ionized extended chains.

Original language	English
Pages (from-to)	1820-1823
Number of pages	4
Journal	Journal of physical chemistry
Volume	99
Issue number	7
DOIs	https://doi.org/10.1021/j100007a003
Publication status	Published - 1995
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physical and Theoretical Chemistry

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10.1021/j100007a003

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abstract = "Interactions between apposed poly(L-glutamic acid) monolayers in water were investigated by direct surface force measurements. The average degree of polymerization was 21. Surface force profiles consisted of a long-range electrostatic repulsion and a short-range steric repulsion. Secondary structures of the polypeptide were found to determine the short-range steric repulsion. The elastic compressibility moduli of the polypeptide monolayers were obtained to be 5.6 ± 2.2 MPa for the β2-structure-rich layer and 0.2 ± 0.1 MPa for the layer of ionized extended chains.",

author = "Takashi Abe and Kazue Kurihara and Nobuyuki Higashi and Masazo Niwa",

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doi = "10.1021/j100007a003",

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T1 - Direct measurement of surface forces between monolayers of anchored poly(L-glutamic acid)

AU - Abe, Takashi

AU - Kurihara, Kazue

AU - Higashi, Nobuyuki

AU - Niwa, Masazo

PY - 1995

Y1 - 1995

N2 - Interactions between apposed poly(L-glutamic acid) monolayers in water were investigated by direct surface force measurements. The average degree of polymerization was 21. Surface force profiles consisted of a long-range electrostatic repulsion and a short-range steric repulsion. Secondary structures of the polypeptide were found to determine the short-range steric repulsion. The elastic compressibility moduli of the polypeptide monolayers were obtained to be 5.6 ± 2.2 MPa for the β2-structure-rich layer and 0.2 ± 0.1 MPa for the layer of ionized extended chains.

AB - Interactions between apposed poly(L-glutamic acid) monolayers in water were investigated by direct surface force measurements. The average degree of polymerization was 21. Surface force profiles consisted of a long-range electrostatic repulsion and a short-range steric repulsion. Secondary structures of the polypeptide were found to determine the short-range steric repulsion. The elastic compressibility moduli of the polypeptide monolayers were obtained to be 5.6 ± 2.2 MPa for the β2-structure-rich layer and 0.2 ± 0.1 MPa for the layer of ionized extended chains.

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DO - 10.1021/j100007a003

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JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 7

ER -

Direct measurement of surface forces between monolayers of anchored poly(L-glutamic acid)

Abstract

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