Quantum effects in biological systems

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Discussion Overview

The discussion centers on the exploration of quantum mechanical effects in biological systems, particularly in the context of biophysics. Participants share their interests in research opportunities related to proteins, cells, and other organic systems, while also considering the feasibility and existing literature on the topic.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses a desire to research quantum effects in biological systems and seeks guidance on existing research and its viability.
  • Another participant suggests looking into existing literature on photosynthesis and molecular motors as relevant areas of study.
  • A third participant references works by Roger Penrose, cautioning against taking certain theories too seriously for career development.
  • It is argued that proteins and cells may not exhibit quantum mechanical effects as they are considered macroscopic systems, with a focus instead on assembly and formation processes in biophysics research.
  • A participant mentions coherent quantum effects in macroscopic systems as a potential area of interest, linking it to specific research initiatives.
  • Discussion includes the role of hydrogen tunneling in enzyme catalysis, noting its chemistry-focused perspective.
  • A link to a feature on "Living physics" is shared, suggesting it aligns with the interests expressed in the thread.

Areas of Agreement / Disagreement

Participants express a mix of interest and skepticism regarding the relevance of quantum effects in biological systems, with some asserting that such systems are macroscopic and others proposing that quantum phenomena may still play a role. The discussion remains unresolved regarding the feasibility and significance of researching quantum effects in biophysics.

Contextual Notes

There are limitations in the discussion regarding the definitions of macroscopic versus quantum systems, and the extent to which quantum mechanics applies to biological processes remains unclear. Additionally, the existing literature and research opportunities vary in focus and depth.

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I am going into my fourth year of studying physics and math as an undergrad. So I'm starting to think about what I want to research after I graduate. So far I'm pretty sure I want to go into biophysics. Specifically, I'm interesting in studying quantum mechanical effects in biological or organic systems, such as proteins or cells. Does anyone know of people that research this? Also does anyone think this is an unrealistic topic for research?
 
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There's a lot of work out there on photosynthesis and molecular motors (kinesin, dynein, etc), so you could check out that literature and see if it's what you had in mind.

There's also some work on channel/transporter proteins, but since the structures are not known as well, there's less existing stuff: i.e., a good opportunity to contribute.
 
Roger Penrose's "The Emperor's New Mind", "Shadows of the Mind" and "The Large, the Small and the Human Mind" come to mind. But IMHO treating them too seriously may prove dangerous for your further career.
 
With proteins and cells, you're not really looking at quantum mechanical effects anymore - these would be considered macroscopic systems. I know our biophysics department does a lot of research on how proteins assemble themselves and how they are likely to be formed. The physics they use is often found more in the analysis, modeling, and statistics.
 
I was thinking about stuff like this http://lphys.chem.utoronto.ca/newpage/research/coherent-control/" , where people look for coherent quantum effects in a macroscopic system.
 
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Given that bacteriorhodopsin's function is dependent upon absorption of light, it's not unexpected that it is amenable to such laser-based studies. It's a bit like photosynthetic systems in that regard, which were mentioned above.

There is also interest in understanding the role of hydrogen tunneling in enzyme catalysis, but that tends to be a bit more "chemistry"-focused from what I've seen.
 
This is what you're talking about - very cool. Possibly the next wave.

http://www.sciencenews.org/view/feature/id/43147/title/Living_physics
 

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