Stimulus Polymer Drug Released
pH Poly(methacrylic-g-ethyleme glycol) (p(MMA-g-EG) Insulin
 Electric field Poly (methacrylie acid) (PMA) Pilocarpine and raffinose
Glucose concentration Poly (methacrylic acid-co-butyl methacrylate) Insulin
Temperature Layer of Chitosan Pluronic on PLGA microparticles Indomethacin
Morphine concentration Methyl vinyl ether-Co-anlydride maleic copolymer Naltrexone
Urea concentration Methyl vinyl ether-Co-anhydride maleic copolymer Hydrocortisone
Table 2: Some Examples of Smart Polymers.