Effect of gramicidin S on the dipalmitoylphosphatidyl-glycerol thermotropic phase transition in DPPG/GS systems: A mathematical approach

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Stan C., Cristescu C. P., Severcan F., Dorohoi D.

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, cilt.457, ss.27-41, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 457
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1080/15421400500447116
  • Dergi Adı: MOLECULAR CRYSTALS AND LIQUID CRYSTALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.27-41
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

We present a mathematical approach to the experimental data recorded via Fourier transform-infrared spectroscopy regarding the influence of the concentration of the antimicrobial peptide gramicidin S (GS) on the thermotropic phase transition of the dipalmitoylphosphatidyl-glycerol (DPPG) lipid bilayer membrane in DPPG/GS systems. The model is based on the influence of the GS concentration on the parameters of a nonlinear damped oscillator, which models the CH2 symmetric stretching band.