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. 2020 Jan 21;6(2):100–116. doi: 10.1021/acscentsci.9b01139

Table 2. Mainly Used Shrinkage Strategies.

stimuli responsive chemical groups refs
pH amino polymers, DMA, Schiff base (112, 113, 117−119)
enzyme MMPs, HAase, amylase, thrombin (124−128, 134−139)
redox disulfide bond (140, 141)
ROS thioketal, thioester, polypropylene sulfide, phenylboronic ester (146−149)