Nanozymes: The Mineral Catalysts That May Have Sparked Life on Earth
A new hypothesis proposed by Professor Yongdong Jin of Shenzhen University suggests that mineral nanoparticles, or 'nanozymes,' served as the essential engines that bridged the gap between inert chemistry and the first living systems. While previous theories like the 'RNA world' or 'Metabolism-first' models have provided valuable insights, they have struggled to fully explain the transition from simple gases to complex biological polymers. This new framework posits that natural mineral nanozymes acted as the primary catalysts for this transformation.
According to the theory, these mineral-based structures performed several critical functions in the primordial environment, including energy processing, surface confinement, and protection against harmful UV radiation. By utilizing natural energy sources such as heat, light, and electricity, these nanozymes likely facilitated a process of 'inorganic photosynthesis.' This mechanism allowed for the conversion of simple, non-living chemicals into the complex molecular building blocks necessary for life, effectively acting as a bridge between inorganic matter and biological information storage.
This research reframes the early Earth as a massive, natural laboratory where geological conditions and mineral interactions systematically drove chemical evolution. By integrating catalysis, energy flow management, and molecular selection into a single model, the nanozyme hypothesis offers a more cohesive explanation for how life could emerge from a barren, inorganic landscape. If validated, this theory could significantly refine our understanding of abiogenesis and provide a clearer roadmap for how life might arise on other planets with similar mineral-rich environments.