| 초록 |
We successfully synthesized a polyethyleneimine (PEI)-passivated polydopamine-based fluorescent carbon nanoparticle detection probe (FDA:PEI), generating a cationic adhesive material for bacterial detection that can be coated, owning photothermal, and antibacterial properties. Using fluorescence on/off system, FDA:PEI displayed ability to detect bacteria in both aqueous and solid phase assays. Scanning electron microscopy demonstrated the interaction between FDA:PEI and bacterial surfaces, in solution and on the surface of coated polypropylene films. In addition, this versatile material displayed antibacterial potential, by using near infrared irradiation to induce heat for killing bacteria through thermolysis. By exploiting the cationic and catechol moieties on the surface of pDA carbon dots, we have developed a novel bacterial detection platform that can be applied over a broad range of conditions. This work was supported by Korea National University of Transportation in 2017. |
