This book was originated from a series of lectures given in a course on
the physical properties of biological membranes and their functional
implica- tions. The course was intended to allow students to get
acquainted with the physical techniques used to study biological
membranes. The experience was valuable and we feel that a detailed
description of the procedures used and of various examples of the
results obtained allowed many students to become familiar with a theme
that is not often part of regular courses on membrane physiology or
biophysics. This book is designed as a tutorial guide for graduate
students interested in understanding how physical methods can be
utilized to study the proper- ties of biological membranes. It includes
first a detailed description of applications of physical techniques-such
as X-ray fiber diffraction methods (Chapter 1), 2H and 13C NMR
spectroscopy (Chapter 2), and calorimetry (Chapter 3)-in the study of
the properties of lipid model membranes. A description of how to measure
molecular mobility in membranes (Chapter 4) follows, and the book
concludes with three chapters in which biological membranes are the
subject of study. Chapter 5 deals with the acetylcholine receptor and
its membrane environment; Chapter 6 discusses how fluorescence
techniques can be applied in the study of the calcium ATPase of
sarcoplasmic reticulum; and Chapter 7 explains how protein- lipid
interactions modulate the function of the sodium and proton pumps.