A Ferroelectric Ceramic/Polymer Composite‐Based Capacitive Electrode Array for In Vivo Recordings. Issue 16 (11th May 2017)

• Record Type: Journal Article
• Authors: Chen, Changyong; Xue, Miaomiao; Wen, Yige; Yao, Guang; Cui, Yan; Liao, Feiyi; Yan, Zhuocheng; Huang, Long; Khan, Saeed Ahmed; Gao, Min; Pan, Taisong; Zhang, Hulin; Jing, Wei; Guo, Daqing; Zhang, Sanfeng; Yao, Hailiang; Zhou, Xiong; Li, Qiang; Xia, Yang; Lin, Yuan
• Is Part Of: Advanced healthcare materials. Volume 6:Issue 16(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-05-11
• Subjects: barium titanate/polyimide (BaTiO3/PI) -- brain/computer interfaces (BCI) -- capacitive sensing -- electrocorticography (ECoG) -- electrode arrays; Biomedical materials -- Periodicals; 610.28
• DOI: 10.1002/adhm.201700305
• Languages: English
• ISSNs: 2192-2640

Abstract

Abstract : A new implantable capacitive electrode array for electrocorticography signal recording is developed with ferroelectric ceramic/polymer composite. This ultrathin and electrically safe capacitive electrode array is capable of attaching to the biological tissue conformably. The barium titanate/polyimide (BaTiO3 /PI) nanocomposite with high dielectric constant is successfully synthesized and employed as the ultrathin dielectric layer of the capacitive BaTiO3 /PI electrode array. The performance of the capacitive BaTiO3 /PI electrode array is evaluated by electrical characterization and 3D finite‐element modeling. In vivo, neural experiments on the visual cortex of rats show the reliability of the capacitive BaTiO3 /PI electrode array. This work shows the potentials of capacitive BaTiO3 /PI electrode array in the field of brain/computer interfaces. Abstract : A new implantable capacitive electrode array for electrocorticography signal recording is developed with barium titanate/polyimide (BaTiO3 /PI) nanocomposite. This ultrathin and electrically safe capacitive BaTiO3 /PI electrode array is capable of attaching to the biological tissue conformably. In vivo neural experiments indicate its feasibility. This work shows the potentials of capacitive BaTiO3 /PI electrode arrays in the field of brain/computer interfaces.