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Wearable and Implantable Light-Emitting Devices: Transforming Biomedicine and Beyond

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Zara Nwosu
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Wearable and Implantable Light-Emitting Devices: Transforming Biomedicine and Beyond

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Understanding Implantable Light-Emitting Devices

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The evolution of technology has paved the way for novel advancements in the biomedical field, one of which is the development of implantable light-emitting devices. These devices are designed to seamlessly integrate with the human body, enabling real-time monitoring, biosensing, optogenetic stimulation, and medical therapy. However, creating such devices presents a set of requirements including miniaturization, softness, biocompatibility, and wireless power.

Wearable Light-Emitting Textiles: Construction and Applications

Along with implantable devices, wearable light-emitting textiles are also making waves in the medical field. They are constructed through methods such as thermal evaporation, electrospinning, extrusion, dip coating, and thermal drawing. The applications of these textiles extend beyond the realm of biomedicine, reaching into wearable displays, fashion, and communication tools. Despite the challenges, the advancements in this field are pushing the boundaries of what's possible.

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In Situ Power Supply Technologies for Wearable Implantable Electronic Devices

The advancements in wearable implantable electronic devices (WIEDs) are tightly linked to progress in power supply technologies. Addressing limited battery endurance in WIEDs is a key challenge that researchers are trying to overcome. Potential solutions include self-powered technologies, which harvest energy from biochemical electricity inside the human body, physical activity, or the environment. External power transmission technologies are also being explored, involving the transmission of external electromagnetic energy, acoustic energy, near-infrared light energy, and other energy types directly to WIEDs.

Exploring Fiber/Textile-Based Actuators and Their Applications

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Fiber/textile-based actuators are another innovative development in the field, offering unique attributes and versatility. These components are employed in a wide range of applications, thanks to their diverse structures, fabrication methods, and actuation principles. Despite existing challenges, the future opportunities in this area are promising.

Advancements in Fiber Shaped Strain Sensors

One breakthrough in the biomedical field involves the creation of a fiber-shaped flexible capacitive strain sensor. Developed using direct ink writing technology, this sensor can sense axial tensile strain and radial expansion strain, proving invaluable for wearable and implantable health monitoring applications. Traditional manufacturing methods for these types of sensors have been limited in stretchability and stability, issues that the direct ink writing technology aims to address.

The Intersection of Biomedicine and Radio Frequency Engineering

As biomedicine continues to intersect with radio frequency engineering, wearable electronics are becoming increasingly common in biomedical sensing. Materials for these devices are being developed with a focus on flexibility and electrical efficiency. Systematic designs aim to improve functionality and performance, with potential future directions pointing towards more advanced wearable electronics in biomedicine.

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