Characterisation of amino acid modified cellulose surfaces using ToF-SIMS and XPS

D. M. Kalaskar, R. V. Ulijn, J. E. Gough, M. R. Alexander, D. J. Scurr, W. W. Sampson, S. J. Eichhorn

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Cellulosic fibrous networks are modified using 3 different amino acids; small (Glycine, Gly), aliphatic (Leucine, Leu) and aromatic (Phenylalanine, Phe). The effect of amino acid functionality on chemical coupling to cellulose fibres in terms of their coverage and packing density are investigated. Different amino acid modified cellulose networks are characterised by using Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS) and X-ray Photoelectron Spectroscopy (XPS). The presence of amino acids is confirmed using ToF-SIMS. The quantitative distribution of different amino acids across the cellulose surface is assessed by using XPS. It is shown that the packing density of amino acids depends on the size of the side chain; smaller amino acids (Gly, Leu) tend to couple to the surface at higher density compared to larger ones (Phe). This study has implications for the functionalisation of polysaccharide materials for a wide range of applications.

LanguageEnglish
Pages747-756
Number of pages10
JournalCellulose
Volume17
Issue number4
DOIs
Publication statusPublished - 1 Aug 2010

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Secondary ion mass spectrometry
Cellulose
Amino acids
X ray photoelectron spectroscopy
Amino Acids
Phenylalanine
Leucine
Glycine
Polysaccharides
Fibers

Keywords

  • amino acid modified cellulose surfaces
  • characterisation
  • ToF-SIMS
  • XPS
  • surface

Cite this

Kalaskar, D. M., Ulijn, R. V., Gough, J. E., Alexander, M. R., Scurr, D. J., Sampson, W. W., & Eichhorn, S. J. (2010). Characterisation of amino acid modified cellulose surfaces using ToF-SIMS and XPS. Cellulose, 17(4), 747-756. https://doi.org/10.1007/s10570-010-9413-y
Kalaskar, D. M. ; Ulijn, R. V. ; Gough, J. E. ; Alexander, M. R. ; Scurr, D. J. ; Sampson, W. W. ; Eichhorn, S. J. / Characterisation of amino acid modified cellulose surfaces using ToF-SIMS and XPS. In: Cellulose. 2010 ; Vol. 17, No. 4. pp. 747-756.
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Kalaskar, DM, Ulijn, RV, Gough, JE, Alexander, MR, Scurr, DJ, Sampson, WW & Eichhorn, SJ 2010, 'Characterisation of amino acid modified cellulose surfaces using ToF-SIMS and XPS' Cellulose, vol. 17, no. 4, pp. 747-756. https://doi.org/10.1007/s10570-010-9413-y

Characterisation of amino acid modified cellulose surfaces using ToF-SIMS and XPS. / Kalaskar, D. M.; Ulijn, R. V.; Gough, J. E.; Alexander, M. R.; Scurr, D. J.; Sampson, W. W.; Eichhorn, S. J.

In: Cellulose, Vol. 17, No. 4, 01.08.2010, p. 747-756.

Research output: Contribution to journalArticle

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Kalaskar DM, Ulijn RV, Gough JE, Alexander MR, Scurr DJ, Sampson WW et al. Characterisation of amino acid modified cellulose surfaces using ToF-SIMS and XPS. Cellulose. 2010 Aug 1;17(4):747-756. https://doi.org/10.1007/s10570-010-9413-y