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Updated: Jul 31, 2025
A Novel Technique for Generating and Observing Chemiluminescence in a Biological Setting
Published on: March 9, 2017
Boosting ultralong chemiluminescence for the self-powered time-resolved immunosensor
Aori Qileng1, Shizhang Chen2, Hongzhi Liang3
1Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China; The Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China.
A novel heterogeneous catalyst enables ultralong chemiluminescence for a self-powered immunosensor. This advancement allows for sensitive detection of furosemide without an external light source, expanding applications in health and safety monitoring.
Area of Science:
- Catalysis
- Analytical Chemistry
- Biosensors
Background:
- Developing efficient initiators for ultralong chemiluminescence in immunosensors is challenging.
- Existing methods often require external light sources, limiting portability.
Purpose of the Study:
- To develop a highly efficient heterogeneous catalyst for stable, long-lasting chemiluminescence.
- To create a self-powered, time-resolved photoelectrochemical (PEC) immunosensor for detecting furosemide.
- To investigate the structure-activity relationship of the Au/Pt@CuO/Cu2O catalyst.
Main Methods:
- Synthesis and characterization of the heterogeneous Au/Pt@CuO/Cu2O catalyst.
- Utilizing the catalyst-initiated luminol chemiluminescence reaction.
- Developing a self-powered PEC immunosensor by coupling chemiluminescence with a PEC substrate.
- Quantifying furosemide based on photocurrent extinction time.
Main Results:
- The Au/Pt@CuO/Cu2O catalyst demonstrated high efficiency, producing strong and long-lasting chemiluminescence (>4 min) with luminol.
- The developed immunosensor showed a linear response for furosemide detection over a wide concentration range (10^-3 to 1 μg/L).
- The Pt-O-Cu bond in the catalyst enabled Fenton-like reactions outside typical pH limitations.
Conclusions:
- The heterogeneous catalyst overcomes limitations in ultralong chemiluminescence initiation.
- The self-powered time-resolved PEC immunosensor offers a portable and sensitive detection method.
- This work expands the application of chemiluminescence in food safety, health monitoring, and biomedical detection.
