3D	Three-dimensional;
PCL	Poly (ε-caprolactone);
RAD	RAD16-I peptide;
ECM	Extracellular matrix;
CTE	Cartilage tissue engineering;
FDA	Food and Drug Administration;
PEG	Polyethylene glycol;
IPN	Interpenetrating network;
SEM	scanning electron microscope;
AC	Articular chondrocytes;
MTT	3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide;
TGF β1	transforming growth factor-β1;
AA2P	L-Ascorbic Acid 2-phosphate;
COL1	Collagen type I;
COL2	Collagen type II;
COL10	Collagen type X;
ACAN	Aggrecan;
RPL22	Ribosomal protein L22;
qRT-PCR	quantitative Reverse Transcription Polymerase Chain Reaction;
GAGs	glycosaminoglycans;
PFA	Paraformaldehyde;
DMA	Dynamic Mechanical Analysis;
G’	storage modulus;
G’’	loss modulus;
G*	complex modulus;
PBST	phosphate buffer saline with Tween-20