Smart maracas: An innovative triboelectric nanogenerator for earthquake detection and energy harvesting.

In an era marked by a growing demand for sustainable energy solutions and resilient disaster management systems, the convergence of innovative technologies holds the promise of addressing multifaceted challenges. This manuscript explores the multifunctional capabilities of the "smart maracas", a novel triboelectric nanogenerator (TENG) designed to harvest mechanical energy and simultaneously serve as an earthquake sensor. The smart maracas is a striking example of the potential of TENGs to harness mechanical motion for practical applications. The device converts mechanical energy into electrical power through meticulous engineering, opening avenues for self-sustaining power sources in various domains. The manuscript outlines the device's structural design, working principle, and real-time applications, spanning bio-mechanical energy harvesting, vibrational energy scavenging, rotational energy harvesting, and a unique sensing application for door monitoring. A pivotal aspect of this research revolves around the smart maracas' role as an earthquake sensor. Rigorous experiments were conducted to assess the device's responsiveness to simulated seismic forces. Notably, a linear relationship with an R² value of 0.9989 was established between the voltage generated by the smart maracas and seismic acceleration. This remarkable correlation underscores the device's precision and reliability in detecting seismic events, opening doors for cost-effective earthquake monitoring solutions. [Display omitted] • Reusing laboratory falcon tube wastes for sustainable energy and sensing technology. • Plasma ion etching on PTFE balls and Hot water treatment on aluminum enhanced device performance. • SM-TENG Integrates artistry, engineering, energy generation, recycling, and disaster management. • Real-time applications in bio-mechanical, vibrational, and rotational energy harvesting. • SM-TENG expands functionality to door security, multi-directional vibration, and seismic sensing applications. [ABSTRACT FROM AUTHOR]