A study led by the School of Engineering of the Hong Kong University of Science and Technology (HKUST) has developed a groundbreaking thermal-electric aerosol (TEA) printer that significantly accelerates piezoelectric biofilm manufacturing. Achieving a speed that is two orders of magnitude faster than existing technologies, this innovation paves the way for the industrial-scale production of biocompatible and biodegradable electronics, with medical applications such as ultrasonic energy harvesters for postoperative cardiac patients.