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When delivering peptide nucleic acids (PNA) into cells in the TiO2 · PL · DNA/PNA nanocomposites consisting of titanium dioxide nanoparticles coated with polylysine (PL) and immobilized DNA/PNA duplexes, it is important to control the rate of the release of PNA from the carrier due to dissociation of the immobilized DNA/PNA duplex, followed by the desorption of PNA to solution while the DNA remains...
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