Immunocompatible electronic polymers and devices for implantable sensors and stimulators that resist foreign-body responses

用于抵抗异物反应的植入式传感器和刺激器的免疫相容性电子聚合物和设备

基本信息

  • 批准号:
    10473319
  • 负责人:
  • 金额:
    $ 136.49万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2022
  • 资助国家:
    美国
  • 起止时间:
    2022-09-19 至 2025-08-31
  • 项目状态:
    未结题

项目摘要

PROJECT SUMMARY In recent decades, bioimplants in human bodies have been more and more routinely used in almost every biomedical specialty, with the functions ranging from pathological and biological studies to medical treatments and restoration of body functions. Among all the different types of bioimplants, implantable electronic devices comprise a major category that provide highly accurate and programmed signal transductions. However, the longevity and stability of all types of bioimplants, including electronic devices, have been facing a common challenge, that is the excessive ingrowth of collagen and inflammation reactions around the device, which have been known as “foreign-body response (FBR)”—a type of immune-mediated reaction on foreign/synthetic material “invaders”. Even for the most successful, FDA-approved bioimplants that have been used for decades, excessive FBR can be provoked in many individuals, which is the primary cause of the device failure before their desired functional periods. For solving this commonly existing grand challenge, although a substantial amount of efforts has been made in the development of new biomaterial designs for suppressing FBR, the research has been almost exclusively focused on insulating-type polymers/hydrogels. To proceed to the next horizon of solving the immune-compatibility problem for implantable electronics using the most promising material family— electronic polymers, it is vitally important for us to develop a set of innovative material designs for electronic polymers for concurrently achieving superior immune compatibility and high electrical property. We propose to achieve this by intellectually addressing the extraordinary challenge of unprecedentedly interfacing immunology with semiconductor physics and polymer sciences, and experimentally combine the approaches of polymer synthesis, morphological engineering, device fabrication, electrical characterizations, in vitro cell tests, and in vivo animal tests. Specifically, the focuses of this research include four aspects: 1) developing new designs of semiconducting and conducting polymers for achieving immunocompatible chemical property; 2) developing “hydrogel-architecture” polymer semiconductors for realizing tissue-level elastic moduli for achieving immunocompatible physical property; 3) in vitro and in vivo study of the elicited FBR by these immunocompatible designs of electronic polymers; 4) combining the material and device developments to realize proof-of-concept immunocompatible devices, including electrophysiological devices, and transistor-based biochemical sensors. Based on the highly important uses of implantable electronics, we envision the realization of immunocompatible electronic devices from this research will create significant benefits and far-reaching impacts to a wide spectrum of biomedical areas.
项目总结

项目成果

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Sihong Wang其他文献

Sihong Wang的其他文献

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{{ truncateString('Sihong Wang', 18)}}的其他基金

Heat Shock Effects on Human Mesenchymal Stem Cell Differentiation in Hydrogel
热休克对水凝胶中人间充质干细胞分化的影响
  • 批准号:
    7693161
  • 财政年份:
    2009
  • 资助金额:
    $ 136.49万
  • 项目类别:
Heat Shock Effects on Human Mesenchymal Stem Cell Differentiation in Hydrogel
热休克对水凝胶中人间充质干细胞分化的影响
  • 批准号:
    7922104
  • 财政年份:
    2009
  • 资助金额:
    $ 136.49万
  • 项目类别:

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