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Journal
2014 | 12 | 5 | 568-576
Article title

TOF-SIMS surface analysis of L-Tryptophan self assembled monolayer

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EN
Abstracts
EN
This paper dealt with the preparation and characterization of self - assembled monolayersSAM-s of 1-hexadecanethiole and mercapto acetic acid on the silver nanostructure and subsequently the immobilization with amino acid L-Tryptophane. In order to achieve it, we used the electrodeposition of silver onto nanostructured surface of paraffin impregnated graphite electrode (PIGE). Subsequently, we assembled SAM by choosing the 1-hexadecanethiole and mercaptoacetic acid. These two kinds of SAM underwent the functionalization by L-Tryptophan. The observations of silver on PIGE surfaces were performed by scanning electron microscope (SEM). For surface analysis of the SAM functionalized by L-tryphophan, the TOF-SIMS technique was chosen. Finally, the fragmented ions of the immobilized-L-Tryptophan SAM were determined on the basis of suggested residues and three-dimensional structure. The residues show that the ability of L-Tryptophan to build homogeneous structure is better by mercaptoacetic acid SAM structure than by 1-hexadecanethiol. It was observed that L-Tryptophan built compact surface, which, due its chemical properties, can represent very interesting side regarding biocompatibility, homochirality and robustness in the area of life science.
Publisher

Journal
Year
Volume
12
Issue
5
Pages
568-576
Physical description
Dates
published
1 - 5 - 2014
online
21 - 2 - 2014
Contributors
author
  • University of Pavol Jozef Safarik, Trieda SNP1
  • University of Pavol Jozer Safarik
author
  • University of Pavol Jozer Safarik
author
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-014-0515-5
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