AMPK	AMP-activated protein kinase
COMP	Cartilage oligomeric matrix protein
CRP	C-reactive protein
DdRFP	matriptase sensitive protein biosensor based on dimerization-dependent red fluorescent protein
ECM	Articular cartilage extracellular matrix
ELISA	Enzyme-Linked Immunosorbent Assays
FBG	New fiber Bragg grating
FCD	fluid control device
FMGC	Fluoro-microbead guiding chip
FO-PPR	Fiber optic-particle plasmon resonance biosensor
GPI	antibodies against glucose 6-phosphate isomerase
IDE	Immunoassay with the specific antibody for uCTX-II
MIP	Molecular Imprinted Polymer sensor
MMP-1	Matrix metalloproteinase 1
MMP-3	Matrix metalloproteinase 3
OA	osteoarthritis
QCM	Quartz crystal microbalance
SAM	Biosensor based on label-free immuno-sensing with self-assembled monolayer
sCTx-I	Serum C-terminal telopeptide of type I collagen
sCTX-II	Serum C-terminal telopeptide fragment of type II collagen
SPRi	Plasmon resonance biosensor
TNF-a	Tumor necrosis factor.
uCTX-II	Urinary C-terminal telopeptide fragment of type II collagen