Gold nanoparticles has strong particle space optical effects and could take a color change from red to blue when the dispersed nanoparticles were aggregated. Various approsches have been designed for biosensing based on the target induced gold nanoparticle solution color changes. The recent developments of gold nanoparticle based colorimetric biosensing assays for food safety have been reviewed and the directions for future research were discussed and proposed.
标题：纳米金比色法在食品安全检测中的应用研究进展
英文标题：Gold nanoparticle based colorimetry and its application in rapid detection for food safety
