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Contact-Free, Passive, Electromagnetic Resonant Sensors for Enclosed Biomedical Applications: A Perspective on Opportunities and Challenges
ACS Sensors ( IF 8.2 ) Pub Date : 2023-03-13 , DOI: 10.1021/acssensors.2c02552 Adam R Carr 1 , Yee Jher Chan 1 , Nigel F Reuel 1
ACS Sensors ( IF 8.2 ) Pub Date : 2023-03-13 , DOI: 10.1021/acssensors.2c02552 Adam R Carr 1 , Yee Jher Chan 1 , Nigel F Reuel 1
Affiliation
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Inexpensive and accurate tools for monitoring conditions in enclosed environments (through garments, bandages, tissue, etc.) have been a long-standing goal of medicine. Passive resonant sensors are a promising solution for such wearable health sensors as well as off-body diagnostics. They are simple circuits with inherent inductance and capacitance (LC tank) that have a measurable resonant frequency. Changes in local parameters, e.g., permittivity or geometry, effect inductance and capacitance which cause a resonant frequency shift response. This signal transduction has been applied to several biomedical applications such as intracranial pressure, hemodynamics, epidermal hydration, etc. Despite these many promising applications presented in the literature, resonant sensors still do not see widespread adoption in biomedical applications, especially as wearable or embedded sensing devices. This perspective highlights some of the current challenges facing LC resonant sensors in biomedical applications, such as positional sensitivity, and potential strategies that have been developed to overcome them. An outlook on adoption in medicine and health monitoring is presented, and a perspective is given on next steps for research in this field.
中文翻译：
用于封闭式生物医学应用的无接触、无源、电磁谐振传感器：机遇与挑战的视角
用于监测封闭环境（通过服装、绷带、纸巾等）条件的廉价且准确的工具一直是医学的长期目标。无源谐振传感器是此类可穿戴健康传感器和离体诊断的有前途的解决方案。它们是具有固有电感和电容（LC 储能电路）的简单电路，具有可测量的谐振频率。局部参数（例如介电常数或几何形状）的变化会影响电感和电容，从而导致谐振频移响应。这种信号转导已应用于多种生物医学应用，例如颅内压、血液动力学、表皮水合作用等。尽管文献中提出了许多有前途的应用，但共振传感器在生物医学应用中仍未得到广泛采用，特别是作为可穿戴或嵌入式传感设备。这一观点突出了 LC 谐振传感器在生物医学应用中当前面临的一些挑战，例如位置敏感性，以及为克服这些挑战而开发的潜在策略。提出了在医学和健康监测中采用的前景，并给出了该领域研究的后续步骤的观点。
更新日期：2023-03-13
中文翻译：
用于封闭式生物医学应用的无接触、无源、电磁谐振传感器：机遇与挑战的视角
用于监测封闭环境（通过服装、绷带、纸巾等）条件的廉价且准确的工具一直是医学的长期目标。无源谐振传感器是此类可穿戴健康传感器和离体诊断的有前途的解决方案。它们是具有固有电感和电容（LC 储能电路）的简单电路，具有可测量的谐振频率。局部参数（例如介电常数或几何形状）的变化会影响电感和电容，从而导致谐振频移响应。这种信号转导已应用于多种生物医学应用，例如颅内压、血液动力学、表皮水合作用等。尽管文献中提出了许多有前途的应用，但共振传感器在生物医学应用中仍未得到广泛采用，特别是作为可穿戴或嵌入式传感设备。这一观点突出了 LC 谐振传感器在生物医学应用中当前面临的一些挑战，例如位置敏感性，以及为克服这些挑战而开发的潜在策略。提出了在医学和健康监测中采用的前景，并给出了该领域研究的后续步骤的观点。
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