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mtDNA sequence alterations are challenging to generate but desirable for basic studies and potential correction of mtDNA diseases. Here, we report a new method for transferring isolated mitochondria into somatic mammalian cells using a photothermal nanoblade, which bypasses endocytosis and cell fusion. The nanoblade rescued the pyrimidine auxotroph phenotype and respiration of ρ0 cells that lack mtDNA...
We demonstrated direct nuclear delivery of macromolecules into live mammalian cells using the photothermal nanoblade. Pulsed laser triggered cavitation bubbles on a titanium thin film coated micropipette tip was utilized to puncture both the cell plasma and nuclear membranes followed by pressure controlled delivery of cargo into the nucleus. High plasmid expression (79–100%) in different cell types...
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