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

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 art...

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Veröffentlicht in:Advanced materials (Weinheim) Jg. 34; H. 44; S. e2204168 - n/a
Hauptverfasser: Peng, Yucan, Zhou, Jiawei, Yang, Yufei, Lai, Jian‐Cheng, Ye, Yusheng, Cui, Yi
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Weinheim Wiley Subscription Services, Inc 01.11.2022
Schlagworte:
artificial skin
Automation
Hydrophilicity
Hydrophobicity
In vitro methods and tests
Manufacturing engineering
Materials science
Nanofibers
Nylon 6
Perspiration
perspiration mimicking
Polydimethylsiloxane
Robotics
Selective surfaces
Skin
surface hydrophilicity/hydrophobicity
surface modification
Sweat
Sweating
Textiles
Thermoregulation
ISSN:0935-9648, 1521-4095, 1521-4095
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Zusammenfassung: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 perspiration‐relevant 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. A facile surface modification method for fibrous materials is developed to fabricate artificial sweating skin, based on an integrated 3D hydrophilicity/hydrophobicity design. With the hydrophilicity/hydrophobicity contrast in both the lateral and vertical directions, the constructed “skin” can transport “sweat” directionally without trapping undesired excess water and attain uniform “secretion” of sweat droplets on the top, decently mimicking human skin perspiration situation.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0935-9648
1521-4095
1521-4095
DOI:10.1002/adma.202204168