Eco-friendly silicon patch delivers clearer ultrasound images without harmful lead components

Wearable ultrasound devices are actively used in various medical settings, including hospital diagnostics, rehabilitation monitoring, and telemedicine. However, most commercial devices currently rely on lead (Pb)-based piezoelectric ceramics, which are harmful to the human body and the environment, making it difficult to ensure both performance and safety.

This has increased the demand for new ultrasound transducer technologies that can completely replace lead while achieving high performance.

A research team led by Dr. Byung Chul Lee at the Bionics Research Center of the Korea Institute of Science and Technology (KIST), in collaboration with Prof. Jae-Woong Jeong at KAIST, Prof. Whal Lee at Seoul National University Hospital, and Prof. Pierre T. Khuri-Yakub at Stanford University, has developed a silicon-based disposable eco-friendly ultrasound patch.

The work is published in the journal Nature Communications.

This achievement marks the first realization of superior performance beyond conventional high-cost lead-based ultrasound transducers without using lead at all.

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