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From Dynamic Superwettability to Ionic/Molecular Superfluidity.

Xiqi Zhang1, Bo Song2, Lei Jiang1,3

  • 1Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.

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|April 21, 2022
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Summary
This summary is machine-generated.

Life systems achieve ultralow energy consumption through ionic/molecular superfluidity in nanochannels. This phenomenon, driven by confined ion/molecule motion, explains efficient energy conversion and biosynthesis in biological processes.

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Area of Science:

  • Biophysics
  • Quantum Biology
  • Nanotechnology

Background:

  • Biological systems exhibit remarkable energy efficiency in processes like energy conversion, information transmission, and biosynthesis, operating at body temperature.
  • Traditional diffusion models do not fully explain the ultralow energy consumption and high efficiency observed in biological nanochannels.
  • Understanding these processes requires exploring novel transport mechanisms beyond classical physics.

Purpose of the Study:

  • To introduce and define the concept of ionic/molecular superfluidity as a key mechanism for ultralow energy consumption in biological systems.
  • To elucidate the necessary conditions for the formation of ionic/molecular superfluidity.
  • To explore the implications of this concept for understanding biological energy conversion, information processing, and biosynthesis.

Main Methods:

  • Theoretical framework for ionic/molecular superfluidity based on confined particle motion within specific distance constraints (e.g., 2λD for ions, 2d0 for molecules).
  • Analysis of the role of attractive potential energy versus thermal noise (kBTc) in driving superfluidity.
  • Examination of biological examples such as electric eel generation, cardiac function, neural information transmission, and ATP decomposition.

Main Results:

  • Ionic/molecular superfluidity, characterized by directional collective motion, is proposed as the mechanism for ultralow-resistivity transport in biological nanochannels.
  • Conditions for superfluidity formation involve particle confinement and a dominant attractive potential energy over thermal noise.
  • Biological phenomena like coherent ion motion in heart cells, neural information via ion channel quantum states, and photon-assisted ATP decomposition support the superfluidity concept.

Conclusions:

  • Ionic/molecular superfluidity provides a new paradigm for understanding the high efficiency and low energy consumption of life systems.
  • This concept bridges quantum mechanics and biological function, suggesting macroscopic quantum states are crucial for life processes.
  • The findings open avenues for designing novel synthetic systems for efficient energy conversion and biosynthesis inspired by biological mechanisms.