The modulation of the ion-fluxes across a polymeric membrane is important for designing attractive methodologies. As an alternative to commonly used dynamic electrochemistry approaches, light can be as external stimulus and provides very convenient way manipulate ions release and/or extraction into membrane. Herein, we designed solid-contact ion-selective sensor that exhibits response by irradi...

A thin liquid layer covers the lungs of air-breathing vertebrates. Active ion transport processes via the pulmonary epithelial cells regulate the maintenance of this layer. This study focuses on basolateral Cl(-) uptake mechanisms in native lungs of Xenopus laevis and the involvement of the Na(+)/K(+)/2 Cl(-) cotransporter (NKCC) and HCO(3)(-)/Cl(-) anion exchanger (AE), in particular. Western ...

The esophageal submucosal glands (SMG) secrete HCO(3)(-) and mucus into the esophageal lumen, where they contribute to acid clearance and epithelial protection. This study characterized the ion transport mechanisms linked to HCO(3)(-) secretion in SMG. We localized ion transporters using immunofluorescence, and we examined their expression by RT-PCR and in situ hybridization. We measured HCO(3)...

Following a blood meal, the mosquito Aedes aegypti will have acquired an enormous sodium load that must be rapidly excreted to restore ion homeostasis. It is a process that demands robust sodium and fluid transport capabilities. Even though the identities of the components involved in this ion transport across the mosquito Malpighian tubule epithelia have not been completely determined, electro...

The ability to transition from freshwater to seawater environments is an intrinsic requirement of the life history of some fish species, including the anadromous rainbow trout (Oncorhynchus mykiss). The differences between hyper- and hypoosmoregulation are developed quickly (in hours to days), and at all scales, from gene expression to organ function. In this study, intestinal ion and water tra...