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. 2010 Jul 21;132(31):10680–10682. doi: 10.1021/ja1040418

Figure 1.

Figure 1

Cargo delivery via pH-sensitive NTA-PTD. (A) NTA3-PTD forms a coordinate covalent bond with metal ions and the imidazole ring on histidine residues. (B) Fmoc-protected lysine derivative. (C) pH-sensitive release of 6xHis-rhodamine via NTA3-PTD.