By Valerica Raicu

ISBN-10: 1402082673

ISBN-13: 9781402082672

ISBN-10: 1402082681

ISBN-13: 9781402082689

This ebook integrates strategies and techniques from physics, biology, biochemistry and actual chemistry right into a standalone, unitary textual content of biophysics that goals to supply a quantitative description of buildings and approaches occuring in dwelling subject. The booklet introduces graduate physics scholars and physicists attracted to biophysics learn to "classical" in addition to rising components of biophysics. The complicated undergraduate physics scholars and the existence scientists also are invited to hitch in, by way of construction on their wisdom of uncomplicated physics. crucial notions of biochemistry and biology are brought, as important, through the booklet, whereas the reader's familiarity with uncomplicated wisdom of physics is thought. themes lined contain interactions among organic molecules, actual chemistry of phospholipids organization into bilayer membranes, DNA and protein constitution and folding, passive and energetic electric homes of the telephone membrane, classical in addition to fractal facets of response kinetics and diffusion in organic platforms, structural and sensible elements of molecular machines (including channels, ion pumps, and light-harvesting antenna), in addition to basic points of proteins organization in recommendations and in dwelling cells.

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The process of micelle formation is therefore said to be cooperative. From a physical point of view this means that micelles do not present a purely statistical size distribution. 54) is in fact greater than a certain value, m (which would be rather arbitrary) or, more naturally, to impose conditions on the chemical potential µ0n . 2. , 1976, 1977; Ruckenstein and Nagarajan, 1975). This situation is shown schematically in Fig. 12. , the total area of a micelle divided by the number of molecules a Hydrophilic repulsion Hydrophobic attraction Fig.

This kind of water is sometimes called structured water. Ion + Xe Protein (a1) (a2) Protein (a3) Ligand (b) Fig. 8 (a1) Hydration shell around a positive ion; (a2) Bound water at the “surface” of a protein; (a3) Interaction of a protein with its specific ligand, during which the hydration shells of protein site and ligand are partially destroyed. , Xenon). , 2005)). 31) where the subscript Assoc stands for “Association”. This seems to contradict the second law of thermodynamics, which requires an increase in entropy, S.

2002). ATP, also called a macroergic molecule, can be considered the metabolic currency of the cell, being used as a source of energy for all energy-consuming cellular processes. Mitochondria also contain small amounts of genetic material in the form of several copies of a circular DNA molecule. This is used in semi-autonomous reproduction of mitochondria inside the cell. Mitochondrial DNA is not contained in a nucleus and is not packed into chromatin. In fact, the overall structure of the mitochondria, including its DNA, resembles that of prokaryotic cells.

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Integrated molecular and cellular biophysics by Valerica Raicu

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