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Looking both ways: Electroactive biomaterials with bidirectional implications for dynamic cell-material crosstalk.

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This review explores conductive biomaterials for excitable cells, focusing on bidirectional signal exchange at the cell-material interface. It highlights design criteria for next-generation bioelectronic systems and materials for improved cell-material integration.

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Area of Science:

  • Bioelectronics
  • Biomaterials Science
  • Cellular Electrophysiology

Background:

  • Excitable cells respond to microenvironmental cues, including electrical stimuli, influencing cellular behavior through signaling pathways.
  • Conductive biomaterials are engineered for seamless cell-material integration, aiming to influence or record electrosensitive biological processes.
  • Current bioelectronic materials prioritize device performance, often overlooking dynamic signal coupling at the biotic-abiotic interface and differentiating ionic from electronic conduction.

Purpose of the Study:

  • To review platforms enabling bidirectional signal exchange between excitable cells and biomaterials.
  • To discuss design criteria for biomaterials facilitating effective cell-material integration and signal coupling.
  • To identify unexplored materials with potential for future bioelectronic applications.

Main Methods:

  • Literature review of current research on bioelectronic materials and excitable cell interfacing.
  • Analysis of design criteria for biomaterials supporting bidirectional signal exchange.
  • Exploration of potential materials not yet utilized in biointerfacing or bioelectronics.

Main Results:

  • Identified platforms capable of bidirectional signal exchange at the biotic-abiotic interface with excitable cells.
  • Highlighted key design criteria for biomaterials, emphasizing seamless integration and recapitulation of the microenvironment.
  • Provided insights into novel materials with potential for advanced bioelectronic applications.

Conclusions:

  • Future bioelectronic systems require attention to the coupling of synthetic material signals with natural biological conduction mechanisms.
  • Characterization of biotic-abiotic crosstalk and the dynamic nature of signal exchange are crucial areas for improvement.
  • Next-generation bioelectronic systems necessitate materials designed with a deep understanding of these dynamic interfacial interactions.