Table 1.

Characterizations of nanoparticulate non-viral vectors in gene delivery

Non-viral vectors	Transferring efficiency	Preparation	Cellular toxicity	Applications	References
Inorganic nanoparticles	Low	Easy	Frequently toxic	In vitro	[18,48,56]
Polymer-based nanoparticles	Low	Easy	Low toxicity	In vitro	[25,29,31]
Lipid-based nanoparticles	Low	Difficult	Toxic (at high dose)	In vitro	[20]
Hybrid nanoparticles	High	Easy	Low toxicity	In vitro/In vivo	[25,73]