Ternary system cationic copolymer (dimethylaminoethyl methacrylate: Butyl methacrylate)/thioglycolic acid doped copper tungstate nanocomposite for environmental remediation and pathogen control supported by molecular docking analysis

2 and 4 wt. % of cationic copolymer (dimethylaminoethyl methacrylate: butyl methacrylate) designed eudragit (Eud) with a fixed quantity of thioglycolic acid (TGA) doped copper tungstate (CuWO 4 ) nanocomposite (NC) were prepared using a co-precipitation approach. A range of characterization techniques was employed to analyze the structural, optical, and compositional characteristics of prepared NC. XRD analysis confirmed the monoclinic and anorthic crystal structure of CuWO 4 , addition of Eud and TGA resulted in increased crystallinity of CuWO 4 . FTIR spectra verified the presence of vibrational modes related to CuWO 4 . The electronic spectra demonstrated an increased absorption window and redshift with Eud and TGA, leading to the reduction in bandgap energy (Eg). FESEM analysis elucidates the flakes and rod-like structures on the surface of CuWO 4 with dopants. 4 wt. % Eud/TGA-CuWO 4 revealed a significant reduction of methyl orange (MO) dye in a neutral medium. Furthermore, the bactericidal effectiveness was tested against S. aureus , demonstrating a remarkable inhibition zone (7.35 mm). The mechanism behind the bactericidal action of TGA-CuWO 4 , Eud/TGA-CuWO 4 NC against DNA gyrase S. aureus (Gram +ve) was studied using molecular docking. • Eudragit/thioglycolic acid-CuWO 4 was effectively synthesized via co-precipitation. • Eudragit and thioglycolic acid increased the crystallinity of CuWO 4 . • The optimized sample showed 99.8% degradation of methyl orange. • Prepared nanocomposites exhibited a 7.35 mm inhibition zone against S. aureus.