highlights:
• itself can trigger the formation of self-delivery supramolecular hydrogels.
•the polysaccharides are biodegradable and carboxymethyl chitosan.
•the as-prepared hydrogels have controllable rheological properties and tunable multifunctionality.
•the hydrogels possess shear-thinning, ph and ionic strength-responsive swelling properties.
•this bioactive molecule itself-triggered self-delivery system can reduce the environmental risks of current-using pesticide.
chemical engineering journal， if，16.744
