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IR patterns of Mg-Al-NO3-LDH (a), Mg-Al-PRN-LDH (b), CG-GS-PRN-LDH (1:0.5) (c), CG-GS (1:0.5) (d), CG-GS-PRN-LDH (1:1) (e), CG-GS (1:1) (f) and PRN (g).
Abbreviations: CG-GS, chitosan-glutathione-glycylsarcosine; IR, infrared; LDH, layered double hydroxides; PRN, pirenoxine sodium.
