Related Experiment Video
Updated: Jun 3, 2026
Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
Published on: February 1, 2022
Selective and quantitative cancer cell detection using target-directed functionalized graphene and its synergetic
Yujun Song1, Yong Chen, Lingyan Feng
1Laboratory of Chemical Biology, Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization, Graduate School of the Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
A new folic acid-conjugated graphene-hemin composite enables rapid, selective, and quantitative colorimetric detection of cancer cells. This method leverages the material's peroxidase-like activity for efficient cancer cell sensing.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Analytical Chemistry
Background:
- Cancer cell detection remains a critical challenge in diagnostics.
- Developing sensitive and selective biosensors is crucial for early cancer diagnosis.
- Graphene-based composites offer unique properties for biosensing applications.
Purpose of the Study:
- To develop a novel folic acid-conjugated graphene-hemin composite.
- To investigate its application in selective, quantitative, and fast colorimetric detection of cancer cells.
- To utilize the peroxidase-like activity of the composite for enhanced sensing.
Main Methods:
- Synthesis of folic acid-conjugated graphene-hemin composite.
- Colorimetric assay development for cancer cell detection.
- Evaluation of selectivity, sensitivity, and speed of the detection method.
- Characterization of the composite's peroxidase-like activity.
Main Results:
- The composite demonstrated high selectivity and quantitative detection of cancer cells.
- The colorimetric detection was achieved rapidly.
- The peroxidase-like activity of the composite was effectively utilized for sensing.
- Successful application in a model cancer cell detection system.
Conclusions:
- The folic acid-conjugated graphene-hemin composite is a promising platform for sensitive and rapid cancer cell detection.
- This approach offers a simple and efficient colorimetric method for cancer diagnostics.
- The study highlights the potential of nanomaterial-based composites in biomedical applications.
