13C NMR	carbon nuclear magnetic resonance
1H NMR	proton nuclear magnetic resonance
ANOVA	analysis of variance
BSA	bovine serum albumin
d	doublet
DAPI	2-(4-amidinophenyl)-6-indolecarbamidine dihydrochloride
DHFR	dihydrofolate reductase
DMEM	Dulbecco’s modified Eagle’s medium
DMSO	dimethyl sulfoxide
DMSO-d6	deuterated dimethyl sulfoxide
DNA	deoxyribonucleic acid
dUTP	2′-deoxyuridine 5′-triphosphate
EB	ethidium bromide
EDTA	ethylenediaminetetraacetic acid
ER	estrogen receptor
ESI-MS	electrospray ionization mass spectrometry
FBS	fetal bovine serum
HEK-293	human embryonic kidney 293
hTopo	human topoisomerase
Hz	hertz
IC50	half maximal inhibitory concentration
IR	infrared
kDNA	kinetoplast DNA
m/z	mass/charge
MCF-7	michigan cancer foundation-7
MDA-MB-231	M.D. Anderson metastatic breast-231
MS (EI)	electron ionization mass spectrometry
MTT	3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
PBS	phosphate-buffered saline
PDB	protein data bank
s	singlet
SCDNA	supercoiled DNA
SD	standard deviation
SkBr-3	Sloan–Kettering breast-3
TAE	tris-acetic acid-EDTA
TE	tris-EDTA
TUNEL	terminal deoxynucleotidyl transferase dUTP nick end labeling
U	units
UV	ultraviolet
Vis	visible
δ	chemical shift