A disposable immunosensor for Enterobacter sakazakii based on an electrochemically reduced graphene oxide-modified
Xue Hu1, Wenchao Dou, Linglin Fu
1Food Safety Key Lab of Zhejiang Province, Department of Food Quality and Safety, Zhejiang Gongshang University, Hangzhou 310035, People's Republic of China.
Analytical Biochemistry
|December 11, 2012
Summary
A novel immunosensor using electrochemically reduced graphene oxide (ERGO) offers sensitive and rapid detection of the foodborne pathogen Enterobacter sakazakii. This advancement holds promise for improved food safety and pathogen detection methods.
Area of Science:
- Electrochemistry
- Biosensors
- Food Safety
Background:
- Enterobacter sakazakii is a significant foodborne pathogen.
- Rapid and sensitive detection methods are crucial for food safety.
Purpose of the Study:
- To develop a disposable immunosensor for Enterobacter sakazakii detection.
- To utilize electrochemically reduced graphene oxide (ERGO) for enhanced sensitivity.
Main Methods:
- Graphene oxide was electrochemically reduced and deposited onto a screen-printed carbon electrode (SPCE).
- Horseradish peroxidase-labeled bacteria-specific antibodies were immobilized on the ERGO-modified electrode.
Main Results:
- The developed immunosensor demonstrated sensitive and rapid detection of Enterobacter sakazakii.
- The ERGO-modified SPCE enhanced the immunosensor's performance.
Conclusions:
- The ERGO-based immunosensor provides an effective method for detecting Enterobacter sakazakii.
- This approach can be extended for the detection of other foodborne pathogens.
