Electrochemical preparation of polyaniline capped Bi2S3 nanocomposite and its application in impedimetric DNA biosensor

- The rod-like Bi2S3 were prepared through a simple solvothermal method.
- PANI film electrochemically prepared on the surface of rBi2S3, resulting in the PANI capped rBi2S3 nanocomposite.
- Electric conductivity and accessible surface area of the electrode was greatly enhanced by the PANI/rBi2S3.
- A novel impedimetric DNA biosensor was successfully fabricated on PANI/rBi2S3.