BBB	blood brain barrier
BLL	blood lead level
CNS	central nervous system
CMOS	complementary metal–oxide–semiconductor
cp	circular permutation
CFP	cyan fluorescent protein
DR	dynamic range
FRET	fluorescence resonance energy transfer
FIs	fluorescent intensities
GE	genetically encoded
GFP	green fluorescent protein
GPCR	G protein-coupled receptor
IQ	intelligence quotient
LOD	limit of detection
LUT	look up table
NA	numeric aperture
PBS	phosphate-buffered saline
SPG	subperineurialglial
TPEN	N,N,N′,N′-tetrakis-(2-pyridylmethyl)ethylenediamine
YFP	yellow fluorescent protein