Degradable Material-Based Triboelectric NanogeneratorIf you are interested in products related to the research phase in this field, please contact for further inquiries.
In the contemporary quest for sustainable energy solutions, degradable triboelectric nanogenerators (TENGs) have emerged as a beacon of innovation. These devices leverage the triboelectric effect—the generation of electricity from mechanical motion—to produce power from everyday movements and environmental vibrations. Unlike traditional energy sources that rely on fossil fuels or non-degradable materials, degradable TENGs are designed to minimize environmental impact. They are constructed from materials that naturally break down over time, reducing waste and pollution. This makes them an ideal candidate for applications ranging from wearable electronics to implantable medical devices, where environmental sustainability and biocompatibility are paramount.
Fig 1. Milestones of TENGs which use degradable materials as triboelectric layer. (Chao S., et al., 2021) 
Triboelectric nanogenerators operate on the principle of contact electrification and electrostatic induction. When two dissimilar materials come into contact and then separate, electrons are transferred from one material to the other, creating a charge separation. This charge separation generates an electric field that drives electrons through an external circuit, producing electrical power. The efficiency and output of a TENG are influenced by the materials used, their surface properties, and the mechanical design of the device. Research has shown that optimizing these factors can significantly enhance the performance of TENGs, making them viable for practical applications.
Degradable TENGs have demonstrated significant potential in energy harvesting from various sources. For instance, wearable TENGs can convert the mechanical energy from human movements into electricity, powering small electronic devices such as fitness trackers and smartwatches. Environmental TENGs can harness energy from wind, rain, and other natural phenomena, providing a sustainable power source for remote sensors and monitoring systems. Research has shown that optimizing the design and materials of TENGs can enhance their energy conversion efficiency, making them a viable alternative to traditional energy sources.
TENGs can also function as highly sensitive sensors, capable of detecting minute mechanical changes. Paper-based TENGs have been used to control the movement of droplets on a platform, while wood-based TENGs have been applied in self-powered sensing for athletic big data analytics. Additionally, TENGs integrated with fabrics can detect human movement and monitor physiological signals, such as pulse and sweat. These applications highlight the versatility of TENGs in providing real-time data for health monitoring and environmental sensing.
One of the most promising applications of degradable TENGs is in implantable medical devices. These devices can provide electrical stimulation for nerve repair, wound healing, and other therapeutic applications. For example, a fully biodegradable TENG made from natural materials like chitosan and silk fibroin can be implanted in the body to provide electrical stimulation and promote healing. The device can degrade over time, eliminating the need for invasive removal procedures. This application not only enhances patient outcomes but also reduces the environmental impact associated with medical waste.
Degradable triboelectric nanogenerators represent a significant advancement in the field of sustainable energy solutions. Their ability to convert mechanical energy into electricity, combined with their biocompatibility and environmental friendliness, makes them ideal for a wide range of applications. From wearable electronics to implantable medical devices, TENGs offer a versatile and eco-friendly alternative to traditional energy sources. While challenges remain in improving output performance, ensuring reliable encapsulation, and achieving controllable degradation, ongoing research and innovation are paving the way for a future where green energy solutions are both efficient and environmentally responsible.
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This article is for research use only and cannot be used for any clinical purposes.
