Tech Life
Battery tech goes super miniature - and tear powered
Sep 5, 2023
Associate Professor Lee Seok Woo, creator of a tear-powered battery the size of a cornea, discusses its potential use in contact lenses and virtual reality systems. Chatbot detectors are mistakenly flagging non-native English speakers for cheating. Ben Wood talks about Apple's latest product plans. Farmers in Senegal are revolutionizing agriculture through WhatsApp voice notes.
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Quick takeaways
- Scientists have developed a miniature battery powered by tears or glucose, which could be used in smart lenses and health monitoring devices.
- AI chatbot detectors are unreliable and biased against non-native English speakers, mistakenly flagging their essays as AI-generated, raising concerns about their reliability and potential biases.
Deep dives
Miniature Battery Powered by Tears and Glucose
Scientists at Nanyang Technological University in Singapore have developed a battery the size of a human cornea that can be powered by tears or glucose. The battery avoids the dangers of explosive conventional batteries by using tear solution as its power source. By coating the battery electrode module with an enzyme that reacts with glucose, the battery is able to charge using glucose dissolved in the tear solution. Although the battery is limited in its capacity due to its small size, researchers are considering applications such as smart lenses and other health monitoring devices.
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