Smart hydrogel materials are a popular topic of investigation because they have the potential to be used as smart drug carriers and soft actuators. Hydrogel materials showing responsiveness to logic gate-type stimuli are of special interest because their responsiveness can be regulated more accurately than that of common stimuli-responsive materials. In this study, poly(N-isopropylacrylamide) nanogels containing catechol substituents in their polymer network structure were prepared via precipitation polymerization. The prepared nanogels showed AND-type logic gate thermal aggregation behavior. The possible use of this logic gate-type smart nanogel aggregating system was investigated in a smart valve system.
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This work was supported by JSPS Kakenhi (Grant Number: 17K14537) from the MEXT in Japan.
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The authors declare that they have no conflict of interest.
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Tamesue, S., Abe, S., Endo, T. et al. Logic gate aggregation of poly(N-isopropylacrylamide) nanogels with catechol substituents that respond to body heat. Polym J 50, 503–510 (2018). https://doi.org/10.1038/s41428-018-0042-x