Click chemistry-assisted self-assembly of DNA aptamer on gold nanoparticles-modified screen-printed carbon electrodes for label-free electrochemical aptasensor

- Label-free electrochemical aptasensor was developed for determination of lysozyme.
- Click chemistry-assisted self-assembly technique was employed as immobilization method.
- Gold nanoparticles modified screen-printed carbon electrodes were employed as electrode platform.
- Signal amplification was achieved with detection limit of 0.3 pg mL−1 for lysozyme.