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Abstract | Cited by

A non-blocking split i-motif based aptamer anchoring strategy was developed as a general platform for sensing weakly acidic tumor microenvironment. By rationally tuning the response range to pH 7.0–6.4 and adjusting aptamer types, the strategy achieved specific, pHe-activated imaging of different cancers in vitro and in vivo.

Graphical abstract: Ultra-pH-responsive split i-motif based aptamer anchoring strategy for specific activatable imaging of acidic tumor microenvironment

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