Wireless Bioelectronics
Smart integration of advanced wireless techniques and bio-responsive materials heralds the advent of new implantable and wearable bioelectronics. Wireless body sensor network formed by such devices can provide an unprecedented amount of data and may have the chance to identify the disease and its severity by patients at home, which will show particular value when healthcare system is overloaded by pandemics like COVID-19. More importantly, extra data can help reshape our understanding of diseases, allow treatment outside centralized healthcare settings, and make prompt intervention possible, leading to better patient outcomes.
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Low-Dimensional Bioelectronic Sensors
Bioelectronic sensors of physiological parameters are essential for health management. For example, the in situ UV detector can alert the excessive UV exposure during outdoor activities or track the dose of bilirubin phototherapy for infants. In addition, the blood oxygen level can be recorded by photoplethysmogram using the coupled LED and photodiode. However, the volume budget for bioelectronic devices is always limited, especially for ultra-sensitive tissues. The low-dimensional and flexible sensors will not only ease the difficulty in the delivery process but also avoid undesirable immune responses due to the mechanical mismatch between tissue and sensor.
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Light-Driven Nanorobot for Biomedical Applications
Over the last decades, scientists have endeavored to develop nanomachines and envisioned that these tiny machines could bring in revolutionary biomedical applications. Silicon nanorobots can harvest energy from light and propel themselves by self-electrophoresis. In comparison with other actuation methods, light potentially offers more freedom and flexibility, due to the modulation not only by its intensity and direction but also by the frequency and polarities, etc. Such well-designed nanorobots may open up new opportunities for the realization of swarming intelligence as well as non-invasive diagnosis and targeted therapy.
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