A ratiometric fluorescent probe for fast and sensitive detection of peroxynitrite: a boronate ester as the receptor to initiate a cascade reaction†
Abstract
A ratiometric fluorescent probe for the detection of peroxynitrite (ONOO−) was developed based on a boronate receptor and intramolecular cyclization. It features fast response, good selectivity and high sensitivity with a detection limit of 35 nM. The potential in bio-imaging was exemplified in Hela cells.