Page 30 - IJB-9-3

International Journal of Bioprinting 4D heterojunction shape reconfiguration by two-photon polymerization

biomimetic features were realized or systematically Author contributions
integrated on-chip through our method with better
chiral torsion, gripping, or smart photonics as Conceptualization: Yufeng Tao
demonstrated. Investigation: Yufeng Tao, Zhiduo Xin, Xia Cao
(iii) Furthermore, the satisfactory cytocompatibility and Methodology: Chengchangfeng Lu
cell-adhesive properties are ascribed to the hydrogel Validation: Xuejiao Wang
nature of the PEG and NIPAM in the composite Writing – original draft: Yufeng Tao
network. The measured cell viability and desirable Writing – review & editing: Yunpeng Ren
adhesion behavior proved MNIHs’ readiness Ethics approval and consent to participate
for the increasing market of bio-environmental
applications. Not applicable.
(iv) Experiments confirmed the molecule-level interaction Consent for publication
is self-driven without any batteries, electric motors,
or pneumatic systems. The non-covalent effect All authors approved the final manuscript and the
underneath interaction leads to a revolutionary μ/n submission to this journal.
scale transformation between mechanical energy and
chemical energy. Availability of data
(v) Moreover, we unexpectedly found that the impaired All data supporting this study are available in the
MNIHs automatically recovered to initial shape supplementary material of this article.
like having self-consciousness without an in-built
diagnosis or sensing parts, implying desirable device References
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Funding 6. Bastola A, Rodriguez NJ, Behl M, et al., 2021, Cactus-inspired
design principles for soft robotics-based on 3D printed
This research was financially supported by the National Key hydrogel-elastomer systems. Mater Design, 202: 109515.
R&D Program of China (SQ2018YFB110138), National https://doi.org/10.1016/j.matdes.2021.109515
Science Youth Fund of China (61805094), Natural Science
Foundation of Jiangsu (BK20221363, BK20210746), and 7. Almeida AC, Canejo J, Fernandes S, et al., 2018, Cellulose-
China Postdoctoral Science Foundation (2017M622417). based biomimetics and their applications. Adv Mater,
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Conflict of interest https://doi.org/10.1002/adma.201703655
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Volume 9 Issue 3 (2023) 22 https://doi.org/10.18063/ijb.678