from Part IV - Biomimetic systems
Published online by Cambridge University Press: 05 September 2015
Most people are impressed, if not amazed, at the fantastic progress in thebiomedical field, which barely existed 50 years ago. There have been giantleaps not just in the manner in which technology is being used to treatpatients, but also in the way the electronics and sensors have diffused intosociety and resulted in paradigm shifts in health monitoring. Electronicmicrosystems can now be ingested (e.g. swallowable capsules) to explore thegastrointestinal tract and can transmit the acquired information to a basestation [1]. The march of electronic technologies to the atomic scale and tonon-planarity (i.e. three dimensions), and rapid advances in system, cell,and molecular biology will forge an increased synergy between electronicsand biology, and we can see more exciting opportunities in the near future.For example, in the next decade it may become possible to restore vision orreverse the effects of spinal cord injury or disease, or for a lab-on-a-chipto allow medical diagnoses without a clinic, or instantaneous biologicalagent detection. Some of these fields are discussed in detail in otherchapters of this book. Similarly, we may see new ways of recording neuralsignals or brain–machine interfaces if the electronics could becomeultra-thin, bendable, and stretchable, and thus integrate intimately withthe soft, curvilinear surfaces of biological tissues. Some of thesedevelopments are discussed in Chapters 22–27. Recent results in thisdirection are encouraging and make it a real possibility in the near future[2,3]. This chapter is about this key enabler, i.e. epidermal electronics,which will lead to further convergence of biology and electronics. The termepidermal electronics here also refers to electronic skin or e-skin (Figure19.1), which is an ultra-thin and lightweight structure with electronicand/or sensing components on flexible/bendable substrates.
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