An anticoagulant supercapacitor for implantable applications

Xiangya Wang, Meimei Yu, Mohammed Kamal Hadi, Jianzhou Niu, Yuxia Zhang, Qi Zhou and Fen Ran ()
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Xiangya Wang: Lanzhou University of Technology
Meimei Yu: Lanzhou University of Technology
Mohammed Kamal Hadi: Lanzhou University of Technology
Jianzhou Niu: Lanzhou University of Technology
Yuxia Zhang: Lanzhou University of Technology
Qi Zhou: Lanzhou University of Technology
Fen Ran: Lanzhou University of Technology

Nature Communications, 2024, vol. 15, issue 1, 1-17

Abstract: Abstract With the rapid advancement of implantable electronic medical devices, implantable supercapacitors have emerged as popular energy storage devices. However, supercapacitors inevitably come into direct contact with blood when implanted, potentially causing adverse clinical reactions such as coagulation and thrombosis, impairing the performance of implanted energy storage devices, and posing a serious threat to human health. Therefore, this work aims to design an anticoagulant supercapacitor by heparin doped poly(3, 4-ethylenedioxythiophene) (PEDOT) for possible applications in implantable bioelectronics. Heparin (Hep), the as-known anticoagulant macromolecule acts as the counterion for PEDOT doping to enhance its conductivity, and the bioelectrode material PEDOT: Hep with anticoagulant activity is synthesized via chemical oxidation polymerization. Concurrently, the anticoagulant supercapacitor is constructed through in-situ polymerization, where PEDOT: Hep and bacterial cellulose as electrode material and electrolyte layer, respectively. Owing to the incorporation of heparin, the supercapacitor exhibits high hemocompatibility with hemolysis rate

Date: 2024
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DOI: 10.1038/s41467-024-54862-2

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