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IPM
30
YEARS OLD

“School of Physics”

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Paper   IPM / P / 14637
School of Physics
  Title:   Quantum Interference and Selectivity through Biological Ion Channels
  Author(s): 
1.  V. Salari
2.  H. Naeij
3.  A. Shafiee
  Status:   Published
  Journal: Scientific Reports
  Vol.:  7
  Year:  2017
  Pages:   41625
  Supported by:  IPM
  Abstract:
The mechanism of selectivity in ion channels is still an open question in biology for more than half a century. Here, we suggest that quantum interference can be a solution to explain the selectivity mechanism in ion channels since interference happens between similar ions through the same size of ion channels. In this paper, we simulate two neighboring ion channels on a cell membrane with the famous double-slit experiment in physics to investigate whether there is any possibility of matter-wave interference of ions via movement through ion channels. Our obtained decoherence timescales indicate that the quantum states of ions can only survive for short times, i.e. 100 picoseconds in each channel and 17-53 picoseconds outside the channels, giving the result that the quantum interference of ions seems unlikely due to environmental decoherence. However, we discuss our results and raise few points, which increase the possibility of interference.

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