Because they have opposite charges, anions and cations are attracted to each other. When enough cation and anion atoms are generated, they bond together, forming ionic networks, or crystal “lattices” consisting of ordered sequences of ions in which each ion is surrounded by ions of the oppos...
An anion has more electrons than protons, consequently giving it a net negative charge. For an anion to form, one or more electrons must be gained, typically pulled away from other atoms with a weaker affinity for them. The number of electrons gained, and so the charge of the...
An anion is an ion that carries a negative charge, causing it to migrate to the anode (positive electrode) in electrolysis. It has more electrons than protons, resulting in the negative charge. Anions are nonmetals. A cation is an ion that carries a positive charge, causing it to migrate...
Anion, Cation and Ion㏄air Recognition by Macrocyclic and Interlocked Host SystemsRotaxanesCatenanesSupramolecular chemistryMolecular recognitionSelf゛ssemblyNano﹕tructuresHostゞuest systemsThis chapter reviews selected highlights from the research contributions of the Beer group to the field of macrocyclic ...
The final approaches utilize reversed phase HPLC in the form of paired-ion separations. The detection of individually eluted, fully resolved metal cations or anions is possible via conventional refractive index or inductively coupled plasma emission spectroscopic detection. In many cases, unresolved ...
The ion exchange kinetics depends on the zeolite structure and cation properties. As zeolite A has a small pore diameter of 4.1 Å, the exchange of ions like Mg2+is slow due to its high hydration at low temperatures. At higher temperatures, the hydration shell is reduced, making the effect...
Nigericin has been employed to study anion transport (Section 2.5) and to modify the pH gradient across energy-conserving membranes. It is often stated that nigericin abolishes ΔpH across a membrane; in fact, the ionophore equalises the K+ and H+ concentration gradients, with the final ion ...
Homogeneous vs. heterogeneous structures: the difference between alloying and phase segregation To determine the spatial distribution of chemical elements, energy-dispersive X-ray spectroscopy (EDS) maps (Fig. 3) of different chemical elements were acquired. Contrary to the anion (F) network, which ...
Simultaneous diffusion of cation and anion to access N, S co-coordinated Bi-sites for enhanced CO2 electroreduction About this article Cite this article Wang, Z., Wang, C., Hu, Y. et al. Simultaneous diffusion of cation and anion to access N, S co-coordinated Bi-sites for enhanced CO2 ...
All four CatSper ion channel proteins are required for male fertility and sperm cell hyperactivated motility. Proc. Natl Acad. Sci. USA 104, 1219–1223 (2007). ADS CAS PubMed PubMed Central Google Scholar Jin, J. et al. Catsper3 and Catsper4 are essential for sperm hyperactivated ...