Azizova, Liana R., Kulik, Tetiana  ORCID: https://orcid.org/0000-0002-1740-0348, Palianytsia, Borys B., Telbiz, German M. and Kartel, Mykola T.
2021.
Secondary structure of muramyl dipeptide glycoside in pristine state and immobilized on nanosilica surface.
Colloids and Surfaces A: Physicochemical and Engineering Aspects
631
, pp. 1-8.
10.1016/j.colsurfa.2021.127724
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Abstract
Fourier transform infrared spectroscopy (FT-IR) and temperature programmed desorption mass spectrometry (TPD-MS) data of O-glycoside MDP in pristine and immobilized on silica surface states indicate that O-glycoside MDP binds to the silica surface by means of carboxylic and NH moieties of isoglutamine. Moreover, pyrolysis of O-glycoside MDP on the silica surface proceeds through formation of additional product 3-iminopyridine-2(3H)-one, which identified in mass spectra as molecular ion with m/z 108 and its fragment ions with m/z 79, 77, 51. FTIR and TPD-MS data confirm existence of a MDP first β-turn on the silica surface resulting from the formation of a hydrogen bond between the NAc carbonyl and the L-Ala NH for MDP and its analogs, as reported previously.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Dentistry |
| ISSN: | 1873-4359 |
| Date of First Compliant Deposit: | 18 April 2023 |
| Date of Acceptance: | 8 October 2021 |
| Last Modified: | 28 Oct 2026 10:45 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/155290 |
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