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Updated: Jul 12, 2026
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Measurement of Basal and Forskolin-stimulated Lipolysis in Inguinal Adipose Fat Pads
Published on: July 21, 2017
Real-Time Monitoring of Lipolysis Based on Polystyrene Inverse Opal Layer by Optical Interferometry.
Tianze Wang1, Bo Zhang1, Liming Liu1
1State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
Analytical Chemistry
|July 9, 2026
Summary
This study introduces a novel optical biosensor for real-time lipolysis monitoring. The method accurately quantifies lipase activity and lipid digestion, crucial for food science and metabolism research.
Area of Science:
- Biochemistry
- Analytical Chemistry
- Materials Science
Background:
- Interfacial lipolysis monitoring is vital for understanding lipid metabolism and food digestion.
- Traditional methods face challenges with complex lipid-aqueous interfaces.
- Label-free optical techniques offer potential for dynamic analysis.
Purpose of the Study:
- To develop a label-free optical interferometric method for real-time lipolysis monitoring.
- To utilize three-dimensional ordered polystyrene inverse opal (PS-IO) films for enhanced biosensing.
- To quantitatively analyze lipase kinetics and lipid digestion behavior.
Main Methods:
- Fabrication of PS-IO films as a high-surface-area host for triglyceride immobilization.
- Development of ordered porous layer interferometry (OPLI) for dynamic mass fluctuation detection.
- Application of Fabry-Pérot fringe shifts to quantify lipolysis.
Main Results:
- The system demonstrated a linear response to lipase concentrations (1–200 U/L).
- High temporal resolution allowed derivation of Michaelis-Menten kinetic parameters.
- Successfully discriminated digestion rates of triglycerides with varying unsaturation and commercial edible oils.
Conclusions:
- The developed optical interferometry platform provides an effective tool for probing triglyceride lipolysis.
- Lipolysis rates correlate with lipid unsaturation due to molecular steric structure.
- The method is applicable for evaluating edible oil digestion in food industry and physiological contexts.
