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ACS Appl Mater Interfaces. 2019 Mar 20;11(11):10862-10873. doi: 10.1021/acsami.8b19241. Epub 2019 Mar 5.

Controllable Preparation of Ordered and Hierarchically Buckled Structures for Inflatable Tumor Ablation, Volumetric Strain Sensor, and Communication via Inflatable Antenna.

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State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, College of Electronic Information and Optics Engineering, and College of Pharmacy , Nankai University , Tianjin 300071 , China.
School of Materials Science and Energy Engineering , Foshan University , Foshan , Guangdong 528000 , China.
Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy , Tianjin Medical University , Tianjin 300070 , China.
Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines , China Pharmaceutical University , Nanjing 210009 , China.
Department of Mechanical Engineering , University of Texas at Dallas , Richardson , Texas 75080 , United States.
Alan G. MacDiarmid NanoTech Institute , University of Texas at Dallas , Richardson , Texas 75080 , United States.
High-Performance Materials Institute , Florida State University , Tallahassee , Florida 32306 , United States.
Key Laboratory of Display Materials and Photoelectric Devices, School of Materials Science and Engineering , Tianjin University of Technology , Tianjin 300384 , China.
Nano-Science and Technology Center , Lintec of America, Inc. , Richardson , Texas 75081 , United States.


Inflatable conducting devices providing improved properties and functionalities are needed for diverse applications. However, the difficult part in making high-performance inflatable devices is the enabling of two-dimensional (2D) buckles with controlled structures on inflatable catheters. Here, we report the fabrication of highly inflatable devices with controllable structures by wrapping the super-aligned carbon nanotube sheet (SACNS) on the pre-inflated catheter. The resulting structure exhibits unique 2D buckled structures including quasi-parallel buckles, crisscrossed buckles, and hierarchically buckled structures, which enables reversible structural changes of 7470% volumetric strain. The 2D SACNS buckled structures show stable electrical conductance and surface wettability during large strain inflation/deflation cycles. Inflatable devices including inflatable tumor ablation, capacitive volumetric strain sensor, and communication via inflatable radio frequency antenna based on these structures are demonstrated.


buckled structure; carbon nanotube; inflatable antenna; inflatable tumor ablation; volumetric strain sensor


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