Custom shaped/ grown lead-free organic crystals used in piezoelectricity generated by squeezing amino acid molecules

https://www.ul.ie/research/news/ul-researchers-develop-new-method-of-generating-eco-friendly-energy

"Pb-FREE: low-cost, low-temperature, eco-friendly shaping/ gowing using silicon moulds... alternative to currently used ceramics/ growing biological crystals behaving in chaotic way... sensors in consumer electronics/ medical devices"