Chameleons are famous for their color-changing abilities. Depending on their body temperature or mood, their nervous system directs skin tissue that contains nanocrystals to expand or contract, ...
A donor-acceptor pyrazinacene derivative with triphenylamine substituents selectively detects naphthalene via π-hole⋅⋅⋅π interactions, inducing a striking, reversible color change from greenish-blue ...
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