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The characteristics of morphosis parameter of CBM/CMC (black line), CBM/CMC/GEO (red line), CBM/CMC/CEO (blue line) and CBM/CMC/EEO (pink line) hydrogels. (a) FT-IR spectra of the four kinds of hydrogels. (b) XRD patterns of the four kinds of hydrogels. CBM carbomer 940, CMC carboxymethyl chitosan, EEO eucalyptus essential oil, GEO ginger essential oil, CEO cumin essential oil, XRD X-ray diffraction
