An Integrated 3D Hydrophilicity/Hydrophobicity Design for Artificial Sweating Skin (i-TRANS) Mimicking Human Body Perspiration

Yucan Peng; Jiawei Zhou; Yufei YangJian-Cheng LaiYusheng YeYi Cui

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An Integrated 3D Hydrophilicity/Hydrophobicity Design for Artificial Sweating Skin (i-TRANS) Mimicking Human Body Perspiration

机译：An Integrated 3D Hydrophilicity/Hydrophobicity Design for Artificial Sweating Skin (i-TRANS) Mimicking Human Body Perspiration

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Artificial skins reproducing properties of human skin are emerging and significant for study in various areas, such as robotics, medicine, and textiles. Perspiration, as one of the most imperative thermoregulation functions of human skin, is gaining increasing attention, but how to realize ideal artificial skin for perspiration simulation remains challenging. Here, an integrated 3D hydrophilicity/hydrophobicity design is proposed for artificial sweating skin (i-TRANS). Based on normal fibrous wicking materials, the selective surface modification with gradient of poly(dimethylsiloxane) (PDMS) creates hydrophilicity/ hydrophobicity contrast in both lateral and vertical directions. With the additional help of bottom hydrophilic Nylon 6 nanofibers, the constructed i-TRANS is able to transport “sweat” directionally without trapping undesired excess water and attain uniform “secretion” of sweat droplets on the top surface, decently mimicking human skin perspiration situation. This fairly comparable simulation not only presents new insights for replicating skin properties, but also provides proper in vitro testing platforms for perspirationrelevant research, greatly avoiding unwanted interference from the “skin” layer. In addition, the facile, fast, and cost-effective fabrication approach and versatile usage of i-TRANS can further facilitate its application.

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《Advanced Materials》 |2022年第44期|2204168.1-2204168.9|共9页
作者
Yucan Peng; Jiawei Zhou; Yufei YangJian-Cheng LaiYusheng YeYi Cui;
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Department of Chemical Engineering Stanford University Stanford, CA 94305, USA;

Department of Materials Science and Engineering Stanford University Stanford, CA 94305, USA;

Department of Materials Science and Engineering Stanford University Stanford, CA 94305, USA,Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory 2575 Sand Hill Road, Menlo Park, CA 94025, USA;

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正文语种英语
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artificial skin; perspiration mimicking; surface hydrophilicity/hydrophobicity; surface modification; textiles;

An Integrated 3D Hydrophilicity/Hydrophobicity Design for Artificial Sweating Skin (i-TRANS) Mimicking Human Body Perspiration

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