Implant-to-implant wireless networking with metamaterial textiles

Tian, Xi; Zeng, Qihang; Kurt, Selman A.; Li, Renee R.; Nguyen, Dat T.; Xiong, Ze; Li, Zhipeng; Yang, Xin; Xiao, Xiao; Wu, Changsheng; Tee, Benjamin C. K.; Nikolayev, Denys; Charles, Christopher J.; Ho, John S.

doi:10.1038/s41467-023-39850-2

Cited by 23 publications

(9 citation statements)

References 45 publications

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“…Simultaneously, ensuring reliable data communication in a body-implanted sensor demands advancements in miniaturization and wireless technology, underpinned by secure, efficient data transmission protocols. Biodegradable sensors leverage thin wires or wireless data transmitters based on resonant inductive coupling, emphasizing the need for materials and designs that support short-distance, high-fidelity data communication without compromising biocompatibility or increasing infection risks [267]. Materials selection for these sensors is critical, with a focus on biodegradability, compatibility with human tissues, and functionality.…”

Section: Integrated Design Considerationsmentioning

confidence: 99%

Recent Progress and Challenges of Implantable Biodegradable Biosensors

Alam,

Ashfaq Ahmed,

Jalal

et al. 2024

Micromachines

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Implantable biosensors have evolved to the cutting-edge technology of personalized health care and provide promise for future directions in precision medicine. This is the reason why these devices stand to revolutionize our approach to health and disease management and offer insights into our bodily functions in ways that have never been possible before. This review article tries to delve into the important developments, new materials, and multifarious applications of these biosensors, along with a frank discussion on the challenges that the devices will face in their clinical deployment. In addition, techniques that have been employed for the improvement of the sensitivity and specificity of the biosensors alike are focused on in this article, like new biomarkers and advanced computational and data communicational models. A significant challenge of miniaturized in situ implants is that they need to be removed after serving their purpose. Surgical expulsion provokes discomfort to patients, potentially leading to post-operative complications. Therefore, the biodegradability of implants is an alternative method for removal through natural biological processes. This includes biocompatible materials to develop sensors that remain in the body over longer periods with a much-reduced immune response and better device longevity. However, the biodegradability of implantable sensors is still in its infancy compared to conventional non-biodegradable ones. Sensor design, morphology, fabrication, power, electronics, and data transmission all play a pivotal role in developing medically approved implantable biodegradable biosensors. Advanced material science and nanotechnology extended the capacity of different research groups to implement novel courses of action to design implantable and biodegradable sensor components. But the actualization of such potential for the transformative nature of the health sector, in the first place, will have to surmount the challenges related to biofouling, managing power, guaranteeing data security, and meeting today’s rules and regulations. Solving these problems will, therefore, not only enhance the performance and reliability of implantable biodegradable biosensors but also facilitate the translation of laboratory development into clinics, serving patients worldwide in their better disease management and personalized therapeutic interventions.

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Section: Integrated Design Considerationsmentioning

confidence: 99%

Recent Progress and Challenges of Implantable Biodegradable Biosensors

Alam,

Ashfaq Ahmed,

Jalal

et al. 2024

Micromachines

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“…Designing tunable metamaterial structures can also be a robust solution to this problem (Lee and Yoon 2020b ; Boardman et al 2011 ). In addition, while considering the IMDs, conformal metasurface can significantly improve the user-friendliness (Tian et al 2023 ; Hajiaghajani et al 2022 ).…”

Section: Challenges and Limitations Of Using Metamaterials Powering Imdsmentioning

confidence: 99%

Harnessing metamaterials for efficient wireless power transfer for implantable medical devices

Mahmud,

Nezaratizadeh,

Satriya

et al. 2024

Bioelectron Med

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Wireless power transfer (WPT) within the human body can enable long-lasting medical devices but poses notable challenges, including absorption by biological tissues and weak coupling between the transmitter (Tx) and receiver (Rx). In pursuit of more robust and efficient wireless power, various innovative strategies have emerged to optimize power transfer efficiency (PTE). One such groundbreaking approach stems from the incorporation of metamaterials, which have shown the potential to enhance the capabilities of conventional WPT systems. In this review, we delve into recent studies focusing on WPT systems that leverage metamaterials to achieve increased efficiency for implantable medical devices (IMDs) in the electromagnetic paradigm. Alongside a comparative analysis, we also outline current challenges and envision potential avenues for future advancements.

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“…Our approach uses metamaterial textiles-structured conductive fabrics engineered to have unique electromagnetic properties (30). While prior research has reported using such metamaterials to enhance wireless networking for wearables (26) and implantable devices (31), our current work demonstrates their capability to mediate near-field interactions between body tissues and wireless signals for highly sensitive and interference-immune sensing of vital signs. The results are thin, conformal sensors that can integrate with everyday passive surfaces to offer accurate and reliable detection of subtle physiological motions from different body regions without requiring active user participation (tables S1 and S2).…”

Section: Introductionmentioning

confidence: 96%

Ambient health sensing on passive surfaces using metamaterials

Nguyen,

Zeng,

Tian

et al. 2024

Sci. Adv.

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Ambient sensors can continuously and unobtrusively monitor a person’s health and well-being in everyday settings. Among various sensing modalities, wireless radio-frequency sensors offer exceptional sensitivity, immunity to lighting conditions, and privacy advantages. However, existing wireless sensors are susceptible to environmental interference and unable to capture detailed information from multiple body sites. Here, we present a technique to transform passive surfaces in the environment into highly sensitive and localized health sensors using metamaterials. Leveraging textiles’ ubiquity, we engineer metamaterial textiles that mediate near-field interactions between wireless signals and the body for contactless and interference-free sensing. We demonstrate that passive surfaces functionalized by these metamaterials can provide hours-long cardiopulmonary monitoring with accuracy comparable to gold standards. We also show the potential of distributed sensors and machine learning for continuous blood pressure monitoring. Our approach enables passive environmental surfaces to be harnessed for ambient sensing and digital health applications.

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Implant-to-implant wireless networking with metamaterial textiles

Cited by 23 publications

References 45 publications

Recent Progress and Challenges of Implantable Biodegradable Biosensors

Recent Progress and Challenges of Implantable Biodegradable Biosensors

Harnessing metamaterials for efficient wireless power transfer for implantable medical devices

Ambient health sensing on passive surfaces using metamaterials

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