Next Article in Journal
Influence of Different Framework Designs on the Fracture Properties of Ceria-Stabilized Tetragonal Zirconia/Alumina-Based All-Ceramic Crowns
Next Article in Special Issue
Molecular Dynamics Study of Self-Assembly of Aqueous Solutions of Poly[9,9-bis(4-Sulfonylbutoxyphenylphenyl) Fluorene-2,7-diyl-2,2’-Bithiophene] (PBS-PF2T) in the Presence of Pentaethylene Glycol Monododecyl Ether (C12E5)
Previous Article in Journal
Biopolymer Green Lubricant for Sustainable Manufacturing
Previous Article in Special Issue
Structural Interpretation of the Large Slowdown of Water Dynamics at Stacked Phospholipid Membranes for Decreasing Hydration Level: All-Atom Molecular Dynamics

Specific Ion Effects in Cholesterol Monolayers

Departamento de Física Aplicada, Universidad de Granada, Campus de Fuentenueva sn, Granada 18071, Spain
Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, Bellaterra 08193, Spain
Authors to whom correspondence should be addressed.
Academic Editor: Erik Reimhult
Materials 2016, 9(5), 340;
Received: 29 February 2016 / Revised: 11 April 2016 / Accepted: 29 April 2016 / Published: 5 May 2016
(This article belongs to the Special Issue Surface Forces and Thin Liquid Films)
The interaction of ions with interfaces and, in particular, the high specificity of these interactions to the particular ions considered, are central questions in the field of surface forces. Here we study the effect of different salts (NaI, NaCl, CaCl2 and MgCl2) on monolayers made of cholesterol molecules, both experimentally (surface area vs. lateral pressure isotherms measured by a Langmuir Film Balance) and theoretically (molecular dynamics (MD) all-atomic simulations). We found that surface isotherms depend, both quantitatively and qualitatively, on the nature of the ions by altering the shape and features of the isotherm. In line with the experiments, MD simulations show clear evidences of specific ionic effects and also provide molecular level details on ion specific interactions with cholesterol. More importantly, MD simulations show that the interaction of a particular ion with the surface depends strongly on its counterion, a feature ignored so far in most theories of specific ionic effects in surface forces. View Full-Text
Keywords: ionic specificity; cholesterol; Langmuir monolayers; molecular dynamics simulations; surface forces ionic specificity; cholesterol; Langmuir monolayers; molecular dynamics simulations; surface forces
Show Figures

Figure 1

MDPI and ACS Style

Del Castillo-Santaella, T.; Maldonado-Valderrama, J.; Faraudo, J.; Martín-Molina, A. Specific Ion Effects in Cholesterol Monolayers. Materials 2016, 9, 340.

AMA Style

Del Castillo-Santaella T, Maldonado-Valderrama J, Faraudo J, Martín-Molina A. Specific Ion Effects in Cholesterol Monolayers. Materials. 2016; 9(5):340.

Chicago/Turabian Style

Del Castillo-Santaella, Teresa, Julia Maldonado-Valderrama, Jordi Faraudo, and Alberto Martín-Molina. 2016. "Specific Ion Effects in Cholesterol Monolayers" Materials 9, no. 5: 340.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop