Micromachines, Volume 8, Issue 4 (April 2017) – 39 articles
Cover Story (view full-size image): A fanciful ball design has been used to demonstrate the 4D printing abilities of entrapped enzymes in photopolymerized hydrogels to mimic biological functions. Such tools are able to generate specific catalytic signals over time in response to environmental stimuli. Two examples of 4D printed tools are presented in this paper to illustrate progressions towards biosensing and biomimetic applications. The first one is based on the printing of the enzymatic couple glucose oxidase/peroxidase for the chemiluminescent detection of glucose; the second one uses printed alkaline phosphatase to generate in situ programmed and localized calcification of the printed object. View the paper
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