We present a two-photon (2P, 800 nm) PDT cyclometalated Iridium(iii) complex (Ir-Es) that targets the intracellular nucleus. The complex is capable of migrating sequentially from the nucleus to mitochondria and inducing dual-damage under light exposure. This study suggests that with minor modification of the terminal moieties of complexes, their final intracellular destinations and PDT efficiency can be significantly impacted.
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Tian et al. (2017) studied this question.
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