Most interactions of biological importance begin with the participants physically separated in
space. In some cases the reactants may be part of an organized framework (eg actin and …

Phototransduction is the process by which absorbed light is converted into an electrical
signal in retinal photoreceptors. The'cyclic GMP cascade'is now widely accepted as the …

Singlet exciton diffusion plays a central role in the photovoltaic conversion in organic
photovoltaics (OPVs). Upon light absorption, singlet excitons are promptly generated in …

During the past decade, our knowledge of molecular mechanisms involved in growth factor
signaling has proliferated almost explosively. However, the kinetics and control of …

Publisher Summary This chapter discusses the research that has characterized the G-
protein cascade of transduction in vertebrate photoreceptors, with particular emphasis on …

It has been known for a long time that the rate at which reactants diffuse toward one another
in solution can affect the rate at which they react. The first person to suggest that this might …

Asymmetric cell division is a fundamental strategy for generating cellular diversity during
animal development. Daughter cells manifest asymmetry in their differential gene …

The basis of the cell membrane is a bilayer of lipid molecules where proteins are either
embedded (integral proteins) or surface-adsorbed (peripheral proteins)[135]. These lipids …

Retinal rods signal the activation of a single receptor molecule by a photon. To ensure
efficient photon capture, rods maintain about 109 copies of rhodopsin densely packed into …

Within the last twelve years, and especially within the last seven, there has been an
explosion of research activity in the subject of lateral motion of membrane proteins. Several …