A flexible one-dimensional copper-based coordination polymer (CP) crystal was synthesized and the crystal structure was solved. This CP crystal shows a single step gate adsorption uptake of CO(2) under moderate conditions (268 K ≤ T ≤ 303 K, P < 1 atm) irrespective of no N(2) uptake at 77 K.

Caesium (Cs(+)) is a potentially toxic mineral element that is released into the environment and taken up by plants. Although Cs(+) is chemically similar to potassium (K(+)), and much is known about K(+) transport mechanisms, it is not clear through which K(+) transport mechanisms Cs(+) is taken up by plant roots. In this study, the role of AtHAK5 in high affinity K(+) and Cs(+) uptake was char...

ATP-sensitive potassium (K(ATP)) channels are known to be critical in the control of both insulin and glucagon secretion, the major hormones in the maintenance of glucose homeostasis. The involvement of K(ATP) channels in glucose uptake in the target tissues of insulin, however, is not known. We show here that Kir6.2(-/-) mice lacking Kir6.2, the pore-forming subunit of these channels, have no ...

Carbachol or elevated K+ stimulated 45Ca2+ uptake into chromaffin cells two- to fourfold. The uptake was stimulated by cholinergic drugs with nicotinic activity, but not by those with only muscarinic activity. Ca2+ uptake and catecholamine secretion induced by the mixed nicotinic-muscarinic agonist carbachol were inhibited by the nicotinic antagonist mecamylamine, but not by the muscarinic anta...

C1G and K® uptake by cells of variegated leaves of Oenothera and Tradescantia having normal and mutated chloroplasts, respectively, have been investigated. Under our conditions light has no effect on ion uptake. C l e uptake is highly sensitive to FCCP in both green and mutated cells, while K® uptake is inhibited only in the green cells. Rates of ion uptake are higher in the green than in the m...

In excitable cells, hypoxia inhibits K channels, causes membrane depolarization, and initiates complex adaptive mechanisms. It is unclear whether K channels of alveolar epithelial cells reveal a similar response to hypoxia. A549 cells were exposed to hypoxia during whole cell patch-clamp measurements. Hypoxia reversibly inhibited a voltage-dependent outward current, consistent with a K current,...

High-affinity K+ (HAK) transporters are encoded by a large family of genes and are ubiquitous in the plant kingdom. These HAK-type transporters participate in low- and high-affinity potassium (K+) uptake and are crucial for the maintenance of K+ homeostasis under hostile conditions. In this study, the full-length cDNA of CcHAK1 gene was isolated from roots of the habanero pepper (Capsicum chine...

Mitochondrial swelling techniques were used to evaluate the effects of the aminoglycoside antibiotic gentamicin on renal cortical mitochondrial monovalent cation permeability. Gentamicin behaved like EDTA to enhance energy-dependent Na+and K+-acetate uptake with a relatively greater effect on Na+-acetate uptake. MgZ+ prevented and reversed the effects of both EDTA and gentamicin. Neither agent ...