Stimuli-Responsive Conductive Nanocomposite Hydrogels with High Stretchability, Self-Healing, Adhesiveness, and 3D Printability for Human Motion Sensing

被引:411
作者
Deng, Zexing [1 ,2 ]
Hu, Tianli [1 ,2 ]
Lei, Qi [3 ]
He, Jiankang [3 ]
Ma, Peter X. [4 ,5 ,6 ,7 ]
Guo, Baolin [1 ,2 ]
机构
[1] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710049, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
[3] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R China
[4] Univ Michigan, Dept Biomed Engn, Ann Arbor, MI 48109 USA
[5] Univ Michigan, Dept Biol & Mat Sci, Ann Arbor, MI 48109 USA
[6] Univ Michigan, Macromol Sci & Engn Ctr, Ann Arbor, MI 48109 USA
[7] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA
基金
中国国家自然科学基金;
关键词
self-healing conductive hydrogel; nanocomposite hydrogels; human motion sensors; 3D printing; adhesive; SKELETAL-MUSCLE TISSUE; INJECTABLE HYDROGELS; HYBRID HYDROGELS; SHAPE-MEMORY; ANTIBACTERIAL; POLYMER; PNIPAM; SCAFFOLDS; CHITOSAN; RECOVERY;
D O I
10.1021/acsami.8b20178
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Self-healing, adhesive conductive hydrogels are of great significance in wearable electronic devices, flexible printable electronics, and tissue engineering scaffolds. However, designing self-healing hydrogels with multifunctional properties such as high conductivity, excellent mechanical property, and high sensitivity remains a challenge. In this work, the conductive self-healing nanocomposite hydrogels based on nanoclay (laponite), multi-walled carbon nanotubes (CNTs), and N-isopropyl acrylamide are presented. The presented nanocomposite hydrogels displayed good electrical conductivity, rapid self-healing and adhesive properties, flexible and stretchable mechanical properties, and high sensitivity to near-infrared light and temperature. These excellent properties of the hydrogels are demonstrated by the three-dimensional (3D) bulky pressure-dependent device, human activity monitoring device, and 3D printed gridding scaffolds. Good cytocompatibility of the conductive hydrogels was also evaluated with L929 fibroblast cells. These nanocomposite hydrogels have great potential for applications in stimuli-responsive electrical devices, wearable electronics, and so on.
引用
收藏
页码:6796 / 6808
页数:13
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