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Emerging Diamond Quantum Sensing in Bio-Membranes.

Yayin Tan¹, Xinhao Hu¹, Yong Hou¹

¹Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China.

|October 27, 2022

Summary

Nitrogen-vacancy (NV) centers in diamond enable precise nanoscale sensing of bio-membranes. This review explores NV-based quantum sensing for investigating membrane mechanics and chemical processes.

Keywords:

NV centers bio-membrane fluorescent biomarker nanoscale sensing optically detected magnetic resonance (ODMR)quantum sensing

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Area of Science:

Biophysics
Quantum Sensing
Materials Science

Background:

Bio-membranes are dynamic systems with crucial roles in physiology and pathology.
Characterizing their local physical properties quantitatively is challenging.
Nitrogen-vacancy (NV) centers in diamond offer unique optical and spin properties for sensing.

Purpose of the Study:

To review the application of NV-based quantum sensing in bio-membrane research.
To highlight the investigation of physical and chemical events at the nanoscale.
To discuss future prospects and challenges.

Main Methods:

Utilizing NV centers in diamond as quantum sensors.
Optical readout of spin properties for nanoscale measurements.
Application in studying bio-membrane elasticity, phase changes, and chemical signals.

Main Results:

NV-based sensors can precisely measure localized physical quantities (magnetic fields, temperature, strain).
Demonstrated applications in exploring bio-membrane elasticity and phase transitions.
Enabled detection of nanoscale bio-physical signals and free radical formation.

Conclusions:

NV-based quantum sensing is a powerful tool for bio-membrane investigations.
Offers precise, quantitative analysis of complex membrane dynamics.
Further development holds promise for understanding physiological and pathological processes.