Keywords: نورون کشت اولیه; Primary cultured neuron; Peptide-conjugated chitosan matrix; Syndecan; Axon extension; Cell adhesion; LN-111; laminin-111; BSA; bovine serum albumin; PBS; phosphate-buffered saline; PDL; poly-d-lysine; ChtM; chitosan matrix; MB; maleimidobenzoyloxy; DIV;