SPR	surface plasmon resonance
LSPR	localized surface plasmon resonance
TIR	total internal reflection
CCD	charge coupling device
POCT	point-of-care testing
ATR	attenuated total reflection
LOD	limit of detection
EOT	enhanced optical transmission
SAW	surface acoustic wave
RIU	refractive index unit
PI	phase image
LED	light emitting diode
ROI	region of interest
TM	transverse magnetic
GNP	gold nanoparticle
IgG	immunoglobulin G
EW	evanescent wave
CMOS	complementary metal-oxide-semiconductor
PCR	polymerase chain reaction
MDPI	Multidisciplinary Digital Publishing Institute
DOAJ	Directory of open access journals
TLA	Three letter acronym