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Core Insights - Researchers at Ulsan National Institute of Science and Technology have developed a fully biodegradable artificial synapse made from natural materials, which can extend memory retention time to nearly 100 minutes, addressing issues related to electronic waste and paving the way for sustainable neuromorphic technology [1][2]. Group 1: Performance and Structure - The artificial synapse features a layered structure resembling a mini "sandwich," with two ionic active layers sandwiching an ionic bonding layer made from cellulose acetate derived from plant stems, along with materials sourced from shells and legumes [1]. - This device operates with low energy consumption, requiring only 0.85 femtojoules per signal transmission, significantly lower than the 2.4 to 24 femtojoules needed by natural brain synapses [1]. Group 2: Biodegradability and Environmental Impact - The ionic active layer and bonding layer of the device can naturally decompose in soil within approximately 16 days, using environmentally safe materials that do not leave harmful residues after decomposition [2]. - The development addresses multiple challenges in artificial synapses, including ultra-low power consumption, stability, durability, and biodegradability, marking a significant advancement in creating neuromorphic devices that can safely interact with the environment and eventually dissolve [2]. Group 3: Application Potential - A simple robotic system demonstrated the device's application potential, where it can amplify signals in response to heat, triggering a mechanical hand to withdraw from a hot object, simulating human reflex behavior [2]. - This suggests future possibilities for developing environmentally friendly robots that can learn, respond to environmental stimuli, and harmlessly disappear after completing their tasks [2].

Core Insights - A biodegradable artificial synapse has been developed by scientists at Ulsan Institute of Science and Technology, which can extend memory retention time to nearly 100 minutes, marking a significant advancement in sustainable neuromorphic technology [1][2] Group 1: Performance and Structure - The artificial synapse is made from natural, environmentally friendly materials such as shells, legumes, and plant fibers, and features a layered structure that mimics brain synapse functions [1] - The device operates with extremely low energy consumption, requiring only 0.85 femtojoules per signal transmission, significantly lower than the 2.4 to 24 femtojoules needed by natural brain synapses [1] Group 2: Biodegradability and Environmental Impact - The ion-active layers and the binding layer of the device can naturally decompose in soil within approximately 16 days, ensuring that no harmful substances are left behind after degradation [2] - This development addresses multiple challenges in creating neuromorphic devices that are low-power, stable, durable, and biodegradable, paving the way for environmentally safe interactions [2] Group 3: Application Potential - A simple robotic system has demonstrated the potential applications of the device, where it can amplify signals in response to heat, mimicking human reflex actions [2] - The research indicates the possibility of developing eco-friendly robots that can learn, respond to environmental stimuli, and safely decompose after completing their tasks [2]