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. 2016 Feb 18;6:21258. doi: 10.1038/srep21258

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(a)Variations in the weight swelling ratio and length shrinkage ratio of the PNIPAAm membrane according to initial crosslinker concentration. (b) Thermal response of SIMs. Final equilibrium states of the three SIMs at initial 26 °C(upper) and 36 °C(lower). (c) Star chart of degrees of radius expansion (lines) and standard deviations (shaded) of pores in the three SIMs at intervals of 45°.