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(Top) Schematic of the supramolecular hydrogels made of mPEG2000-CPT with nitenpyram or acetamiprid. (Bottom) SEM images of mPEG2000-CPT/α-CD-formed hydrogels including different pesticides, acetamiprid (A), or nitenpyram (B). For all samples, [mPEG2000-CPT] = 24 (mg/mL), [pesticides] = 10 (mg/mL) and [α-CD] =100 (mg/mL).
