AO	Acridine orange
BCA	Bicinchoninic acid
DMF	N,N-dimethylformamide
DMSO	Dimethylsulfoxide
EB	Ethidium bromide
EDC	1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride
EDTA	Ethylenediaminetetraacetic acid
EMEM	Eagles minimum essential medium
EPR	Enhanced permeability and retention
FA	Folic acid
FBS	Foetal bovine serum
FR	Folate receptor
G5	Generation 5
HBS	HEPES buffered saline
MTT	3-(4,5-dimethyldiazol-2-yl)-2,5-diphenyltetrazolium bromide
NPs	Nanoparticles
NTA	Nanoparticle tracking analysis
PAMAM	Poly(amidoamine)
PAMAM-SeNP	Dendrimer functionalized SeNPs
PBS	Phosphate-buffered saline
pDNA	Plasmid DNA (specifically referring to pCMV-Luc-DNA in this study)
RLU	Relative light units
SDS	Sodium dodecyl sulphate
SeNPs	Selenium nanoparticles
TEM	Transmission electron microscopy
WC	With competitor
WOC	Without competitor