Related Experiment Video
Updated: May 5, 2026

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System
Published on: June 13, 2010
Detection of gamma-irradiation effect on DNA and protein using magnetic sensor and cyclic voltammetry
Duck-Gun Park1, Hoon Song, M B Kishore
1Korea Atomic Energy Research Institute, Daejeon 305-600, Daejeon, Korea.
Abstract:
In this study, a magnetic sensor utilizing Planar Hall Resistance (PHR) and cyclic Voltammetry (CV) for detecting the radiation effect was fabricated. Specifically, we applied in parallel a PHR sensor and CV device to monitor the irradiation effect on DNA and protein respectively. Through parallel measurements, we demonstrated that the PHR sensor and CV are sensitive enough to measure irradiation effect. The PHR voltage decreased by magnetic nanobead labeled DNA was slightly recovered after gamma ray irradiation. The behavior of cdk inhibitor protein p21 having a sandwich structure of Au/protein G/Ab/Ag/Ab was checked by monitoring the cyclic Voltammetry signal in analyzing the gamma ray irradiation effect.
Related Concept Videos
Voltammetric Techniques: Cyclic Voltammetry
Voltammetric Techniques: Linear-Scan (E vs Time)

