Image (IMAGE) Science China Press Caption Schematic illustrations of some bioanalytical applications of LONs. (A) A reversible cell membrane-anchored K+ probe. Copyright (2016) Royal Society of Chemistry. (B) (C) Cell membrane-immobilized DNA tweezers for monitoring extracellular pH. Copyright (2018) American Chemical Society. (D) T cell-aptamer sensor for measuring cytokine secretion. Copyright (2017) Royal Society of Chemistry. Credit Copyright (2017) Royal Society of Chemistry Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.