HPA	Hypothalamic–pituitary–adrenal
ELISA	Enzyme-linked immunosorbent assay
RIA	Radioimmunoassay
LC-MS/MS	Liquid chromatography-tandem mass spectrometry
SPR	Surface plasmon resonance
POCT	Point-of-care testing
ACEK	Alternating current electrokinetics
DEP	Dielectrophoresis
ACEO	Alternating current electroosmosis
ACET	Alternating current electrothermal
SEM	Scanning electron microscopy
XPS	X-ray photoelectron spectroscopy
BSA	Bovine serum albumin
AR	Analytical Reagent
HPLC	High-Performance Liquid Chromatography
PET	Polyethylene terephthalate
EDS	Energy dispersive spectroscopy
EDL	Electrical double layer
LOD	Limit of detection
RSD	Relative standard deviation
R2	Coefficient of determination
SSE	Sum of squared errors