Concentration-dependent effect of melatonin on DSPC membrane

ŞAHİN İ., Bilge D., KAZANCI N., Severcan F.

JOURNAL OF MOLECULAR STRUCTURE, cilt.1052, ss.183-188, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1052
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.molstruc.2013.08.060
  • Sayfa Sayıları: ss.183-188


The concentration-induced effects of melatonin on distearoyl phosphatidylcholine (DSPC) model membranes were investigated by using two different non-invasive techniques, namely Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC). An investigation of the C-H, C=O and PO2- double bond stretching mode in FTIR spectra and DSC studies reveals that the inclusion of melatonin changes the physical properties of the DSPC multilamellar liposomes (MLVs) by shifting the main phase transition to lower temperatures, abolishing the pretransition, ordering the system in the gel phase and slightly disordering the system in the liquid crystalline phase, increasing the dynamics both in the gel phase and liquid crystalline phases. Melatonin also causes strong hydrogen bonding between C=O and PO2- groups of lipids and the water molecules around. (C) 2013 Elsevier B.V. All rights reserved.