“…Biodegradable blends of sodium alginate (SA) and lignosulphonic acid (LS) in a ratio of 80:20 is known to work best in the case of controlled drug delivery [ 12 , 13 ]. Polyethylene glycol (PEG) and glycerol are non-toxic, biodegradable, and known to be efficient plasticizers [ [13] , [14] , [15] , [16] ]. PEGylation, the covalent conjugation of PEG with various drug targets, such as protein and oligonucleotides, improves the drug's pharmacokinetics [ 17 ].…”