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Any kind of device that is used for medical purpose called medical device or sometimes
called biomedical device. These biomedical devices serve as medical remedy tools by
providing suitable diagnosis and even through therapeutic treatments.
1 With the current
centralized healthcare services, the patients need to travel hospital and wait after long queue
and suffer from much pain during treatment due to the use of bulky invasive biomedical
devices. From this perspective, flexible and wearable patch (both in-vitro and in-vivo) based
biomedical devices are ideal candidate which can collect the patients’ health information
without any restriction of patient’s degrees of freedom and send the data to the healthcare
professional through cloud, thus, immediate diagnosis is possible.2 However, nearly all class
of biomedical devices needs electrical power supply which is currently fulfilled by
electrochemical power sources (battery and supercapacitors) made the devices bulky. Owing
to the limitation of the size, capacity and periodic replacement requirement through repeated
surgery (for implanted biomedical devices) battery free fully wireless and lightweight energy
systems are required.
3
In this regard, piezoelectric and triboelectric device based energy harvesting technology
stands as a promising solution which scavenges electricity from biomechanical energy
sources, and eliminate the need of batteries for wearable biomedical devices.
4 However, the
performances of these devices are still low for the practical implementation. In order to
configure a high performance device, nature inspired device design with innovative materials
architecture is required. In this research talk, I would present few of my breakthrough
research works based on piezoelectric and triboelectric biomedical devices. With the high
power generation capability, superior sensitivity and long term stability, these devices are
expected to leverage next generation autonomous biomedical devices.
References
1. Rogers, J.; Malliaras, G.; Someya, T. Science Advances 2018, 4, (9), eaav1889.
2. Wang, X.; Liu, Z.; Zhang, T. Small 2017, 13, (25), 1602790.
3. Won, S. M.; Cai, L.; Gutruf, P.; Rogers, J. A. Nature Biomedical Engineering 2021.
4. Zheng, Q.; Shi, B.; Li, Z.; Wang, Z. L. Advanced Science 2017, 4, (7), 1700029. |