“…Pullulan was chosen to develop anionic polymer and drug conjugation because it has been widely explored for various biomedical applications such as tissue engineering, targeted drug and gene delivery due to its unique biocompatibility profile (Prajapati et al 2013). Pullulan derivatives with various cationic polymers such as protamine, polyethyleneimine, spermine, and glycidyl trimethyl ammonium chloride have been explored for gene delivery to increase hemocompatibility and efficiency of a gene delivery vector component (Priya et al 2014;Rekha and Sharma 2011;Thakor et al 2009;Thomsen et al 2011) Besides that, various targeted pullulandrug conjugates have been investigated for improving efficacy of cytotoxic drugs on tumor site along with fewer side effects on normal tissues (Li et al 2013a, b;Scomparin et al 2011;Wang et al 2013). Carboxylmethylated pullulan (CMP) is an anionic derivative of pullulan, which has been widely explored for biomedical applications (Dulong et al 2012;Pereiraa, et al 2014;Mocanu et al 2014).…”