Silver Nanoparticle Synthesis on DNA via 2-Mercapto-Thioxanthone

The patent applies preliminary action by introducing 2-mercapto-thioxanthone as a stabilizing agent before UV illumination. This agent pre-establishes protective interactions with both DNA/BSA and silver ions, creating a stabilized complex that prevents deterioration during the subsequent rapid reduction process. The stabilizer is present in the system before the harmful UV exposure occurs, preventing the deterioration that would otherwise happen during nanoparticle formation.

The patent applies parameter changes by modifying the chemical environment through the addition of 2-mercapto-thioxanthone, which alters the reduction kinetics. This stabilizer enables the UV-induced reduction of silver ions to occur much more rapidly, allowing nanoparticle formation to be completed in approximately 1 second instead of requiring prolonged illumination. The chemical parameter change catalyzes the reduction process, dramatically缩短ing the synthesis time while maintaining nanoparticle quality.

The patent applies the intermediary principle by using 2-mercapto-thioxanthone as a mediating substance that facilitates the interaction between UV light, silver ions, and the DNA/BSA template. This photo-reducer agent absorbs UV energy and transfers it to silver ions, enabling rapid reduction while simultaneously stabilizing the nanoparticle structure. The intermediary substance enables the desired transformation without requiring direct exposure of DNA/BSA to harsh UV conditions, thus achieving high synthesis speed with maintained stability.