Ultrasensitive wearable strain sensors of 3D printing tough and conductive hydrogels

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dc.creatorWang, Jilong
dc.creatorLiu, Yan
dc.creatorSu, Siheng
dc.creatorWei, Junhua (TTU)
dc.creatorRahman, Syed Ehsanur (TTU)
dc.creatorNing, Fuda
dc.creatorChristopher, Gordon (TTU)
dc.creatorCong, Weilong (TTU)
dc.creatorQiu, Jingjing (TTU)
dc.date.accessioned2023-03-31T15:01:08Z
dc.date.available2023-03-31T15:01:08Z
dc.date.issued2019
dc.description© 2019 by the authors. cc-by
dc.description.abstractIn this study, tough and conductive hydrogels were printed by 3D printing method. The combination of thermo-responsive agar and ionic-responsive alginate can highly improve the shape fidelity. With addition of agar, ink viscosity was enhanced, further improving its rheological characteristics for a precise printing. After printing, the printed construct was cured via free radical polymerization, and alginate was crosslinked by calcium ions. Most importantly, with calcium crosslinking of alginate, mechanical properties of 3D printed hydrogels are greatly improved. Furthermore, these 3D printed hydrogels can serve as ionic conductors, because hydrogels contain large amounts of water that dissolve excess calcium ions. A wearable resistive strain sensor that can quickly and precisely detect human motions like finger bending was fabricated by a 3D printed hydrogel film. These results demonstrate that the conductive, transparent, and stretchable hydrogels are promising candidates as soft wearable electronics for healthcare, robotics and entertainment.
dc.identifier.citationWang, J., Liu, Y., Su, S., Wei, J., Rahman, S.E., Ning, F., Christopher, G., Cong, W., & Qiu, J.. 2019. Ultrasensitive wearable strain sensors of 3D printing tough and conductive hydrogels. Polymers, 11(11). https://doi.org/10.3390/polym11111873
dc.identifier.urihttps://doi.org/10.3390/polym11111873
dc.identifier.urihttps://hdl.handle.net/2346/92244
dc.language.isoeng
dc.subject3D printing
dc.subjectHydrogels
dc.subjectSensor
dc.subjectTough
dc.titleUltrasensitive wearable strain sensors of 3D printing tough and conductive hydrogels
dc.typeArticle

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