Probing oxygen and nitrogen bonding sites in chitosan by X-ray emission

E. Z. Kurmaev; S. Shin; M. Watanabe; R. Eguchi; Y. Ishiwata; T. Takeuchi; A. Moewes; D. L. Ederer; Y. Gao; M. Iwami; M. Yanagihara

doi:10.1016/S0368-2048(02)00094-4

Probing oxygen and nitrogen bonding sites in chitosan by X-ray emission

E. Z. Kurmaev, S. Shin, M. Watanabe, R. Eguchi, Y. Ishiwata, T. Takeuchi, A. Moewes, D. L. Ederer, Y. Gao, M. Iwami, M. Yanagihara

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

9 Citations (Scopus)

Abstract

We present X-ray fluorescence measurements of biopolymer chitosan [C₆H₁₁NO₄]_n and chitosan cross-linked with ethylene glycol diglycidyl ether (EGDE). Changes in the fine structure of resonantly excited O Kα X-ray emission spectra (XES) of unmodified chitosan are attributed to the excitation of non-equivalent oxygen sites belonging to -OH, -O- functional groups. The comparison of the nonresonant nitrogen Kα XES of unmodified chitosan cross-linked with EGDE does not show any differences, which excludes the model of chemical structure according to which EGDE is linked to chitosan via the amine group.

Original language	English
Pages (from-to)	133-138
Number of pages	6
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	125
Issue number	2
DOIs	https://doi.org/10.1016/S0368-2048(02)00094-4
Publication status	Published - Aug 2002
Externally published	Yes

Keywords

Chitosan
Electronic structure
Site-specific absorption
Synchrotron radiation
X-ray absorption
X-ray emission

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

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10.1016/S0368-2048(02)00094-4

Cite this

@article{af2b6c83d4654da3a5793d50950d5453,

title = "Probing oxygen and nitrogen bonding sites in chitosan by X-ray emission",

abstract = "We present X-ray fluorescence measurements of biopolymer chitosan [C6H11NO4]n and chitosan cross-linked with ethylene glycol diglycidyl ether (EGDE). Changes in the fine structure of resonantly excited O Kα X-ray emission spectra (XES) of unmodified chitosan are attributed to the excitation of non-equivalent oxygen sites belonging to -OH, -O- functional groups. The comparison of the nonresonant nitrogen Kα XES of unmodified chitosan cross-linked with EGDE does not show any differences, which excludes the model of chemical structure according to which EGDE is linked to chitosan via the amine group.",

keywords = "Chitosan, Electronic structure, Site-specific absorption, Synchrotron radiation, X-ray absorption, X-ray emission",

author = "Kurmaev, {E. Z.} and S. Shin and M. Watanabe and R. Eguchi and Y. Ishiwata and T. Takeuchi and A. Moewes and Ederer, {D. L.} and Y. Gao and M. Iwami and M. Yanagihara",

note = "Funding Information: This work was supported by the Russian Science Foundation for Fundamental Research (Projects 00-15-96575), the National Science Foundation grant DMR-98011804, and the President{\textquoteright}s NSERC fund of the University of Saskatchewan. The ALS at Lawrence Berkeley National Laboratory is supported by the US Department of Energy under Contract No. DE-AC03-76SF 00098.",

year = "2002",

month = aug,

doi = "10.1016/S0368-2048(02)00094-4",

language = "English",

volume = "125",

pages = "133--138",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

issn = "0368-2048",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - Probing oxygen and nitrogen bonding sites in chitosan by X-ray emission

AU - Kurmaev, E. Z.

AU - Shin, S.

AU - Watanabe, M.

AU - Eguchi, R.

AU - Ishiwata, Y.

AU - Takeuchi, T.

AU - Moewes, A.

AU - Ederer, D. L.

AU - Gao, Y.

AU - Iwami, M.

AU - Yanagihara, M.

N1 - Funding Information: This work was supported by the Russian Science Foundation for Fundamental Research (Projects 00-15-96575), the National Science Foundation grant DMR-98011804, and the President’s NSERC fund of the University of Saskatchewan. The ALS at Lawrence Berkeley National Laboratory is supported by the US Department of Energy under Contract No. DE-AC03-76SF 00098.

PY - 2002/8

Y1 - 2002/8

N2 - We present X-ray fluorescence measurements of biopolymer chitosan [C6H11NO4]n and chitosan cross-linked with ethylene glycol diglycidyl ether (EGDE). Changes in the fine structure of resonantly excited O Kα X-ray emission spectra (XES) of unmodified chitosan are attributed to the excitation of non-equivalent oxygen sites belonging to -OH, -O- functional groups. The comparison of the nonresonant nitrogen Kα XES of unmodified chitosan cross-linked with EGDE does not show any differences, which excludes the model of chemical structure according to which EGDE is linked to chitosan via the amine group.

AB - We present X-ray fluorescence measurements of biopolymer chitosan [C6H11NO4]n and chitosan cross-linked with ethylene glycol diglycidyl ether (EGDE). Changes in the fine structure of resonantly excited O Kα X-ray emission spectra (XES) of unmodified chitosan are attributed to the excitation of non-equivalent oxygen sites belonging to -OH, -O- functional groups. The comparison of the nonresonant nitrogen Kα XES of unmodified chitosan cross-linked with EGDE does not show any differences, which excludes the model of chemical structure according to which EGDE is linked to chitosan via the amine group.

KW - Chitosan

KW - Electronic structure

KW - Site-specific absorption

KW - Synchrotron radiation

KW - X-ray absorption

KW - X-ray emission

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U2 - 10.1016/S0368-2048(02)00094-4

DO - 10.1016/S0368-2048(02)00094-4

M3 - Article

AN - SCOPUS:0036680527

SN - 0368-2048

VL - 125

SP - 133

EP - 138

JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

IS - 2

ER -

Probing oxygen and nitrogen bonding sites in chitosan by X-ray emission

Abstract

Keywords

ASJC Scopus subject areas

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