SINGAPORE: Scientists from Nanyang Technological University have achieved a groundbreaking feat with the development of a flexible battery as thin as a human cornea. This revolutionary battery has the capacity to store electricity when submerged in a saline solution, opening doors to the possibility of powering smart contact lenses in the future.
Smart contact lenses, which have been gaining momentum in recent years, can display visible information directly on the corneas of users, offering applications in augmented reality, vision correction, health monitoring, and disease detection for individuals with chronic conditions such as diabetes and glaucoma.
Addressing this challenge, NTU’s battery innovation is crafted from biocompatible materials, eliminating the use of toxic heavy metals that are commonly found in lithium-ion batteries and wireless charging systems. Moreover, the innovative design allows the battery to be potentially powered by human tears, which naturally contain sodium and potassium ions at a lower concentration.
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