Raman Spectroscopy for Non-Invasive CYP Enzyme Activity Detection
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Solution Overview
Problem
Conventional methods for detecting CYP enzyme activity in cells are invasive and destructive, requiring protein extraction and purification, making it difficult to measure enzyme activity within living cells without damaging them.
Innovation Solution
A method using Raman spectroscopy to measure the number of oxidized CYP enzyme molecules within cells, allowing for non-invasive evaluation of enzyme activity by irradiating excitation light and analyzing Raman scattering signals in specific wavenumber ranges, enabling detection of enzyme activity without labeling or invasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional spectroscopy methods (absorption spectrum, EM paramagnetic resonance, fluorescence, luminescence, X-ray) are used to detect CYP enzymes, then detection capability is achieved, but invasive operations for extraction and purification are required which destroys cell tissue and limits application to one cell only
Solution Approach 1:
The patent replaces mechanical extraction and purification operations with optical measurement methods. Specifically, it uses Raman spectroscopy to non-invasively detect CYP enzyme activity through molecular vibration signals, eliminating the need for physical disruption of cell tissue while maintaining detection sensitivity.
Solution Approach 2:
The patent introduces Raman scattering signals as an intermediary to indirectly detect CYP enzyme activity. Instead of directly observing the enzyme through invasive means, the method measures the Raman signals from molecules interacting with or near the CYP enzymes, providing a non-invasive proxy for enzyme activity detection.
2Measurement precision
If extraction and purification operations are performed to increase detection sensitivity, then detection accuracy improves, but the process becomes invasive and destructive to cell tissue
Solution Approach 1:
The patent substitutes complex mechanical extraction and purification procedures with a straightforward optical measurement process. By using Raman spectroscopy to directly detect enzyme activity in intact cells, the method achieves detection accuracy without requiring the complex invasive operations traditionally needed to isolate and purify CYP enzymes.
3Reliability
If invasive operations are used to detect CYP enzyme activity, then detection capability is achieved, but the method can only be applied once to one cell
Solution Approach 1:
The patent replaces one-time invasive detection methods with repeatable non-invasive optical measurements. Since Raman spectroscopy does not require cell disruption or extraction, the same cell can be measured multiple times at different time points, enabling longitudinal studies and repeated detection of enzyme activity changes.
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 high-resolution detection of CYP enzyme activity in cells without damaging them, allowing for multiple-angle analysis of cell states and drug responses, and can evaluate metabolic abilities of hepatocytes.
Implementation Method 1
utilizing Stokes Raman scattering signals indicating the activity of CYP metabolism enzyme group
Data Source
AI summary
The present invention provides a method for evaluating intracellular or extracellular enzyme activity of CYP enzyme group, including a step of measuring the number of molecules of oxidized CYP enzyme group.