K⁺

K⁺

1. (chemistry) a radical cation of potassium with a charge number of 1
   • 1988 April 1, Christopher Miller with Stahl, Neil and Barrol, Margaret, “A thermodynamic analysis of monovalent cation permeation through a K⁺-selective ion channel”, in Neuron‎ (in English), page 159:

     For Li⁺, Na⁺, K⁺, and Rb⁺, the enthalpy of binding to the channel is close to zero.

   • 2008 June 1, David Daniels, “Ion Channels Play Key Role in R&D”, in Genetic Engineering & Biotechnology News‎, volume 28, number 11 (in English), →ISSN, →OCLC, archived from the original on 3 March 2012, page 24:

     Ion channels, which facilitate this movement, are protein assemblies that penetrate the membrane and catalyze passage of specific ions such as sodium (Na⁺), potassium (K⁺), or calcium (Ca²⁺) into or out of the cell down the electrochemical gradient.