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Acousto-optogenetics bandpass stabilizer: A programmable platform for mapping single-cell phenotypic life
Yuxin Wang1, Yue Quan1, Shizheng Zhou1
1Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, 999078, Macau.
This study introduces acoustic modulation to control cell rotation, significantly reducing photobleaching in fluorescence imaging. This innovation enables artifact-free drug screening and enhances precision oncology by improving clinical predictability.
Area of Science:
- Biophysics
- Cell Biology
- Pharmacology
Background:
- Photobleaching limits fluorescence-based drug screening accuracy, leading to false positives/negatives.
- Current phototoxicity mitigation strategies compromise imaging resolution.
Purpose of the Study:
- To develop an active photobleaching intervention strategy using acoustic modulation.
- To establish a quantitative framework linking acoustic parameters to photobleaching kinetics.
- To enable artifact-free drug response analysis and enhance precision oncology.
Main Methods:
- Employing ultra-low-frequency acoustic modulation (500-2000 Hz) for 3D cellular rotation.
- Utilizing an Acousto-Optogenetics Bandpass Stabilizer for tunable phototoxicity control.
- Developing FlowMind, an AI-powered software for automated single-cell dynamic library processing.
Main Results:
- Acoustic frequency scanning demonstrated a bandpass-filter effect on photobleaching, peaking at 1500 Hz.
- Achieved approximately 30-fold fluorescence preservation compared to static conditions.
- Demonstrated significant variations in drug screening sensitivity for calcium channel blockers.
Conclusions:
- Acoustic modulation offers programmable control of photostability, revolutionizing fluorescence-based assays.
- The developed Acousto-Optogenetics Bandpass Stabilizer and FlowMind software enable artifact-free drug screening.
- This paradigm shift promises enhanced clinical predictability in patient-tailored therapeutic regimens for precision oncology.
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