Translingual

Symbol

K⁺

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

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

   • 2008 June 1, Daniels, David, “Ion Channels Play Key Role in R&D”, in Genetic Engineering & Biotechnology News, volume 28, number 11, ISSN 1935-472X, OCLC 77706455, archived from the original on 2010-01-02, 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.