"Current Topics in Membranes" provides a systematic, comprehensive, and rigorous approach to specific topics relevant to the study of cellular membranes. In this work, each volume is a guest edited compendium of membrane biology. Articles covered in the volume include: Provides overviews on biomembranes and the impact their physico-chemical properties have on reactive species reactivity; focus is on reactive species and control of cell-signaling pathways; and, illustrates the concept that different reactive species can modulate function of specific membrane ion channels in different tissues, including sodium channels, chloride channels, sodium-potassium ATPases and calcium channels in both plasma and intracellular organelle membranes.