Drop coating deposition Raman spectroscopy of liposomes: role of cholesterol
Jazyk angličtina Země Irsko Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
23598168
DOI
10.1016/j.chemphyslip.2013.04.002
PII: S0009-3084(13)00075-3
Knihovny.cz E-zdroje
- Klíčová slova
- Asolectin, Cholesterol, DPPC, Drop coating deposition Raman spectroscopy, Liposome,
- MeSH
- 1,2-dipalmitoylfosfatidylcholin chemie MeSH
- cholesterol chemie MeSH
- fosfatidylcholiny chemie MeSH
- hydrofobní a hydrofilní interakce MeSH
- liposomy chemie MeSH
- Ramanova spektroskopie * MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- 1,2-dipalmitoylfosfatidylcholin MeSH
- asolectin MeSH Prohlížeč
- cholesterol MeSH
- fosfatidylcholiny MeSH
- liposomy MeSH
Drop coating deposition Raman (DCDR) spectroscopy was used to study liposomes (DPPC and asolectin) with growing proportion of cholesterol. Deposited samples of both liposomes on special hydrophobic surface formed a dried drop with a circular shape with a ring of concentrated liposomes at the outer edge. The presence of cholesterol in liposome causes a diminishing of the drop size and an increasing in diameter of the ring, but DPPC with 20% of cholesterol forms the compact drop without the ring. Raman spectra contain characteristics of both lipids and cholesterol, liposomes do not change their initial phase state after drying. Spectral mapping shows that maximum Raman intensity originated from the inner part of the ring. Our results suggest that DCDR spectroscopy can be used for studying lipids containing cholesterol in situ.
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