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4. Rapidly deployable and morphable 3D mesostructures with applications in multimodal biomedical devices

Author

Zhang, Fan, Li, Shupeng, Shen, Zhangming, Cheng, Xu, Xue, Zhaoguo, Zhang, Hang, Song, Honglie, Bai, Ke, Yan, Dongjia, Wang, Heling, Zhang, Yihui, and Huang, Yonggang

Subjects
Macromolecular and Materials Chemistry, Engineering, Chemical Sciences, Bioengineering, Generic health relevance, anterior-posterior patterning, embryonic development, Xenopus laevis, FGF signaling, FAM3B cytokine, Lorentz force, deployable and morphable 3D mesostructures, instability, magnetic force, mechanically guided assembly
Abstract

Structures that significantly and rapidly change their shapes and sizes upon external stimuli have widespread applications in a diversity of areas. The ability to miniaturize these deployable and morphable structures is essential for applications in fields that require high-spatial resolution or minimal invasiveness, such as biomechanics sensing, surgery, and biopsy. Despite intensive studies on the actuation mechanisms and material/structure strategies, it remains challenging to realize deployable and morphable structures in high-performance inorganic materials at small scales (e.g., several millimeters, comparable to the feature size of many biological tissues). The difficulty in integrating actuation materials increases as the size scales down, and many types of actuation forces become too small compared to the structure rigidity at millimeter scales. Here, we present schemes of electromagnetic actuation and design strategies to overcome this challenge, by exploiting the mechanics-guided three-dimensional (3D) assembly to enable integration of current-carrying metallic or magnetic films into millimeter-scale structures that generate controlled Lorentz forces or magnetic forces under an external magnetic field. Tailored designs guided by quantitative modeling and developed scaling laws allow formation of low-rigidity 3D architectures that deform significantly, reversibly, and rapidly by remotely controlled electromagnetic actuation. Reconfigurable mesostructures with multiple stable states can be also achieved, in which distinct 3D configurations are maintained after removal of the magnetic field. Demonstration of a functional device that combines the deep and shallow sensing for simultaneous measurements of thermal conductivities in bilayer films suggests the promising potential of the proposed strategy toward multimodal sensing of biomedical signals.

Published
2021

8. Three-dimensional electronic microfliers inspired by wind-dispersed seeds

Author

Kim, Bong Hoon, Li, Kan, Kim, Jin-Tae, Park, Yoonseok, Jang, Hokyung, Wang, Xueju, Xie, Zhaoqian, Won, Sang Min, Yoon, Hong-Joon, Lee, Geumbee, Jang, Woo Jin, Lee, Kun Hyuck, Chung, Ted S., Jung, Yei Hwan, Heo, Seung Yun, Lee, Yechan, Kim, Juyun, Cai, Tengfei, Kim, Yeonha, Prasopsukh, Poom, Yu, Yongjoon, Yu, Xinge, Avila, Raudel, Luan, Haiwen, Song, Honglie, Zhu, Feng, Zhao, Ying, Chen, Lin, Han, Seung Ho, Kim, Jiwoong, Oh, Soong Ju, Lee, Heon, Lee, Chi Hwan, Huang, Yonggang, Chamorro, Leonardo P., Zhang, Yihui, and Rogers, John A.

Published
2021
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18. Assembly of complex 3D structures and electronics on curved surfaces

Author

Xue, Zhaoguo, primary, Jin, Tianqi, additional, Xu, Shiwei, additional, Bai, Ke, additional, He, Qi, additional, Zhang, Fan, additional, Cheng, Xu, additional, Ji, Ziyao, additional, Pang, Wenbo, additional, Shen, Zhangming, additional, Song, Honglie, additional, Shuai, Yumeng, additional, and Zhang, Yihui, additional

Published
2022
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23. Three-Dimensional Electronic Microfliers With Designs Inspired by Wind-Dispersed Seeds

Author

Rogers, John, primary, Kim, Bong Hoon, additional, Li, Kan, additional, Kim, Jin-Tae, additional, Park, Yoonseok, additional, Jang, Hokyung, additional, Wang, Xueju, additional, Xie, Zhaoqian, additional, Won, Sang, additional, Jang, Woo Jin, additional, Lee, Kun Hyuk, additional, Chung, Ted, additional, Jung, Yei Hwan, additional, Heo, Seung Yun, additional, Lee, Yechan, additional, Kim, Juyun, additional, Cai, Tengfei, additional, Kim, Yeonha, additional, Prasopsukh, Poom, additional, Yu, YongJoon, additional, Yu, Xinge, additional, Luan, Haiwen, additional, Song, Honglie, additional, Zhu, Feng, additional, Zhao, Ying, additional, Chen, Lin, additional, Han, Seung Ho, additional, Kim, Jiwoong, additional, Oh, Soong Ju, additional, Lee, Heon, additional, Lee, Chi Hwan, additional, Huang, Yonggang, additional, Chamorro, Leonardo, additional, and Zhang, Yihui, additional

Published
2021
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26. Sensor‐Actuators: 4D Printing Strain Self‐Sensing and Temperature Self‐Sensing Integrated Sensor–Actuator with Bioinspired Gradient Gaps (Adv. Sci. 13/2020)

Author

Chen, Daobing, primary, Liu, Qingping, additional, Han, Zhiwu, additional, Zhang, Junqiu, additional, Song, HongLie, additional, Wang, Kejun, additional, Song, Zhengyi, additional, Wen, Shifeng, additional, Zhou, Yan, additional, Yan, Chunze, additional, and Shi, Yusheng, additional

Published
2020
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30. Electro-mechanically controlled assembly of reconfigurable 3D mesostructures and electronic devices based on dielectric elastomer platforms

Author

Pang, Wenbo, primary, Cheng, Xu, additional, Zhao, Haojie, additional, Guo, Xiaogang, additional, Ji, Ziyao, additional, Li, Guorui, additional, Liang, Yiming, additional, Xue, Zhaoguo, additional, Song, Honglie, additional, Zhang, Fan, additional, Xu, Zheng, additional, Sang, Lei, additional, Huang, Wen, additional, Li, Tiefeng, additional, and Zhang, Yihui, additional

Published
2019
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36. Mechanoelectrical Energy Conversion: Highly Efficient Mechanoelectrical Energy Conversion Based on the Near‐Tip Stress Field of an Antifracture Slit Observed in Scorpions (Adv. Funct. Mater. 22/2019)

Author

Wang, Kejun, primary, Zhang, Junqiu, additional, Song, Honglie, additional, Fang, Yuqiang, additional, Wang, Xiaolong, additional, Chen, Daobing, additional, Liu, Linpeng, additional, Niu, Shichao, additional, Yao, Zhongwen, additional, Han, Zhiwu, additional, and Ren, Luquan, additional

Published
2019
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40. Ultralow-Cost, Highly Sensitive, and Flexible Pressure Sensors Based on Carbon Black and Airlaid Paper for Wearable Electronics

Author

Han, Zhiyuan, Li, Hangfei, Xiao, Jianliang, Song, Honglie, Li, Bo, Cai, Shisheng, Chen, Ying, Ma, Yinji, and Feng, Xue

Abstract

Flexible pressure sensors have attracted considerable attention because of their potential applications in healthcare monitoring and human–machine interactions. However, the complicated fabrication process and the cos of sensing materials limit their widespread applications in practice. Herein, a flexible pressure sensor with outstanding performances is presented through an extremely simple and cost-efficient fabrication process. The sensing materials of the sensor are based on low-cost carbon black (CB)@airlaid paper (AP) composites, which are just prepared by drop-casting CB solutions onto APs. Through simply stacking multiple CB@APs with an irregular surface and a fiber-network structure, the obtained pressure sensor demonstrates an ultrahigh sensitivity of 51.23 kPa–1and an ultralow detection limit of 1 Pa. Additionally, the sensor exhibits fast response time, wide working range, good stability, as well as excellent flexibility and biocompatibility. All the comprehensive and superior performances endow the sensor with abilities to precisely detect weak air flow, wrist pulse, phonation, and wrist bending in real time. In addition, an array electronic skin integrated with multiple CB@AP sensors has been designed to identify spatial pressure distribution and pressure magnitude. Through a biomimetic structure inspired by blooming flowers, a sensor with the open-petal structure has been designed to recognize the wind direction. Therefore, our study, which demonstrates a flexible pressure sensor with low cost, simple preparation, and superior performances, will open up for the exploration of cost-efficient pressure sensors in wearable devices.

Published
2024
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42. Electro-mechanically controlled assembly of reconfigurable 3D mesostructures and electronic devices based on dielectric elastomer platforms.

Author

Pang, Wenbo, Cheng, Xu, Zhao, Haojie, Guo, Xiaogang, Ji, Ziyao, Li, Guorui, Liang, Yiming, Xue, Zhaoguo, Song, Honglie, Zhang, Fan, Xu, Zheng, Sang, Lei, Huang, Wen, Li, Tiefeng, and Zhang, Yihui

Subjects
DIELECTRIC devices, ELECTRONIC equipment, ELASTOMERS, CAPACITORS
Abstract

The manufacture of 3D mesostructures is receiving rapidly increasing attention, because of the fundamental significance and practical applications across wide-ranging areas. The recently developed approach of buckling-guided assembly allows deterministic formation of complex 3D mesostructures in a broad set of functional materials, with feature sizes spanning nanoscale to centimeter-scale. Previous studies mostly exploited mechanically controlled assembly platforms using elastomer substrates, which limits the capabilities to achieve on-demand local assembly, and to reshape assembled mesostructures into distinct 3D configurations. This work introduces a set of design concepts and assembly strategies to utilize dielectric elastomer actuators as powerful platforms for the electro-mechanically controlled 3D assembly. Capabilities of sequential, local loading with desired strain distributions allow access to precisely tailored 3D mesostructures that can be reshaped into distinct geometries, as demonstrated by experimental and theoretical studies of ∼30 examples. A reconfigurable inductive–capacitive radio-frequency circuit consisting of morphable 3D capacitors serves as an application example. [ABSTRACT FROM AUTHOR]

Published
2020
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