Article ; Online: E-Suture: Mixed-Conducting Suture for Medical Devices.
2023 , Page(s) e2302613
Abstract: ... carriers. Here, a mixed-conducting suture, the e-suture, is presented. Composed of silk, the conducting ... polymers,the resulting e-suture has mixed-conducting properties at the interface with biological tissue ... as well as effective insulation along its length. The e-suture can be mechanically integrated ...
Abstract | Modern implantable bioelectronics demand soft, biocompatible components that make robust, low-impedance connections with the body and circuit elements. Concurrently, such technologies must demonstrate high efficiency, with the ability to interface between the body's ionic and external electronic charge carriers. Here, a mixed-conducting suture, the e-suture, is presented. Composed of silk, the conducting polymer poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), and insulating jacketing polymers,the resulting e-suture has mixed-conducting properties at the interface with biological tissue as well as effective insulation along its length. The e-suture can be mechanically integrated into electronics, enabling the acquisition of biopotentials such as electrocardiograms, electromyograms, and local field potentials (LFP). Chronic, in vivo acquisition of LFP with e-sutures remains stable for months with robust brain activity patterns. Furthermore, e-sutures can establish electrophoretic-based local drug delivery, potentially offering enhanced anatomical targeting and decreased side effects associated with systemic administration, while maintaining an electrically conducting interface for biopotential monitoring. E-sutures expand on the conventional role of sutures and wires by providing a soft, biocompatible, and mechanically sound structure that additionally has multifunctional capacity for sensing, stimulation, and drug delivery. |
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Language | English |
Publishing date | 2023-12-27 |
Publishing country | Germany |
Document type | Journal Article |
ZDB-ID | 2649576-4 |
ISSN | 2192-2659 ; 2192-2640 |
ISSN (online) | 2192-2659 |
ISSN | 2192-2640 |
DOI | 10.1002/adhm.202302613 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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