Optogenetic Cell Regulation in Deep Tissue With Wavefront Modulation
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Solution Overview
Problem
The penetration depth of light in living tissues is limited due to scattering and absorption, making it difficult to achieve precise optogenetic control in deep regions of living tissue, such as the brain.
Innovation Solution
A system comprising a laser source module, modulation module, optical fiber module, and imaging module, which generates and modulates two lasers with different wavelengths for optogenetic regulation and imaging, allowing precise targeting and control of cells using wavefront modulation and fluorescence imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light is used for optogenetic control in deep tissue regions, then cell regulation capability is improved, but light penetration depth deteriorates due to scattering and absorption
Solution Approach 1:
The patent introduces wavefront modulation technology as an intermediary to correct light propagation through scattering and absorption in tissue. By measuring the transmission matrix and applying phase conjugation, the system compensates for tissue-induced wavefront distortions, enabling deep tissue penetration while maintaining focus quality for optogenetic control
Solution Approach 2:
The system changes the wavelength parameter of light to optimize penetration depth. By selecting specific wavelengths that experience less scattering and absorption in biological tissue, the system extends the effective penetration depth while maintaining sufficient intensity for optogenetic activation
2Manufacturing precision
If wavefront modulation is applied to improve focusing precision, then spatial resolution is improved, but system complexity increases
Solution Approach 1:
The system performs preliminary measurement of the transmission matrix before actual optogenetic control. This pre-characterization of the optical path allows the system to pre-calculate compensation strategies, simplifying real-time control while maintaining high spatial resolution through wavefront modulation
Solution Approach 2:
The patent implements feedback mechanisms where the transmission matrix measurement informs the wavefront modulation strategy. By continuously monitoring and adjusting based on measured optical properties, the system maintains precision without requiring overly complex real-time control algorithms
3Adaptability or versatility
If multiple lasers with different wavelengths are used for simultaneous imaging and regulation, then functionality is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple laser sources and their respective control pathways into a unified system architecture. By combining the lasers through optical combining techniques and using a shared wavefront modulation and delivery system, the patent reduces overall device complexity while maintaining the ability to perform both imaging and optogenetic regulation with different wavelengths
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise optogenetic regulation and imaging of target cells in both superficial and deep tissue areas, enhancing flexibility and reducing tissue damage with high-speed, diffraction-limited focusing.
Implementation Method 1
a laser source module, configured for generating a first laser and a second laser
Implementation Method 2
The modulation module is configured for modulating the received first laser based on a preset modulation strategy to determine a regulation light
Implementation Method 3
an optical fiber module, configured for outputting the regulation light or the imaging light
Implementation Method 4
The imaging module is configured for receiving a fluorescence signal in the target area through the optical fiber module
Implementation Method 5
the living tissue corresponding to specific cells can scatter and absorb light, which affects the propagation of light
Implementation Method 6
the living tissue corresponding to specific cells can scatter and absorb light, which affects the propagation of light
Data Source
AI summary
A system and a method for regulating a living tissue cell are provided. The system includes: a laser source module, a modulation module, an optical fiber module, an imaging module, and a control module. The modulation module is configured for modulating the received first laser based on a preset modulation strategy to determine a regulation light and modulating the received second laser based on the preset modulation strategy to determine an imaging light, wherein the preset modulation strategy refers to a strategy for wavefront modulation of the first laser and the second laser. The regulation light or the imaging light is output to the deep area of living tissue through the multimode optical fiber in the optical fiber module.