1 Introduction
Studies have shown that SO2-induced HSA free radicals
could cause tissue damage during allergic reactions, eosinophilic
inflammation, and lung
disease.1-6 An effective
tool of simultaneous detection of HSA and SO2 is
important for understanding the underlying mechanism of synergistic
action between SO2 and HSA in disease. Recently Liang et
al designed a fluorescent small molecule probe for simultaneous
detection of HSA and SO2 via their distinct fluorescent
signals.7 The design
concept was as showed in Scheme 1.