Ultrafast Dynamics of Phospholipid-Water Interfaces : Studied by Nonlinear Time-Resolved Vibrational Spectroscopy / by René Costard

By:

Costard, René [aut]

Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Series: Springer Theses, Recognizing Outstanding Ph.D. Research | SpringerLink Bücher | Springer eBook Collection Physics and AstronomyPublisher: Cham : Springer, 2015Edition: 1st ed. 2015Description: Online-Ressource (X, 103 p. 42 illus., 6 illus. in color, online resource)ISBN:

9783319220666

Subject(s):

Additional physical formats: 9783319220659 | Druckausg.: 978-3-319-22065-9 LOC classification:

QH601-602 QR77
QH601-602
QR77

DOI: DOI: 10.1007/978-3-319-22066-6Online resources:

Summary: This thesis presents a highly innovative study of the ultrafast structural and vibrational dynamics of hydrated phospholipids, the basic constituents of cell membranes. As a novel approach to the water-phospholipid interface, the author studies phosphate vibrations using the most advanced methods of nonlinear vibrational spectroscopy, including femtosecond two-dimensional infrared spectroscopy. He shows for the first time that the structure of interfacial water undergoes very limited fluctuations on a 300 fs time scale and that the lifetimes of hydrogen bonds with the phospholipid are typically longer than 10 ps. Such properties originate from the steric hindrance of water fluctuations at the interface and the orienting action of strong electric fields from the phospholipid head group dipoles. In an extensive series of additional experiments, the vibrational lifetimes of the different vibrations and the processes of energy dissipation are elucidated in detailPPN: PPN: 1657946134Package identifier: Produktsigel: ZDB-2-PHA

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