Influence of cholesterol on water penetration into bilayers

See allHide authors and affiliations

Science  02 Apr 1982:
Vol. 216, Issue 4541, pp. 65-67
DOI: 10.1126/science.7063872


X-ray diffraction and capacitance measurements have been used to calculate the depth to which water penetrates in fully hydrated bacterial phosphatidylethanolamine bilayers in the presence and absence of cholesterol. The data indicate that cholesterol decreases in depth of water penetration by about 2.5 angstroms.