| 초록 |
Photothermal effect is a process that involved transferring the absorbed light into heat. Materials exhibiting photothermal effect include metal nanoparticles (gold, silver), carbon nanoparticles (graphene, CNT) and conducting polymers (PANI, PPy). In this study, polyaniline-gold nanocomposites were synthesized by inverse emulsion polymerization of aniline in the presence of HAuCl4, a gold precursor, using ammonium persulfate (APS) as an oxidant. FESEM-EDX and TEM analysis revealed that gold nanoparticles with 50-100 nm were formed in PANI matrix during the polymerization process. PANI exhibit temperature rising upon irradiation of near infrared light (NIR) due to its intrinsic photothermal effects, and the photothermal effect was enhanced with the increase in gold content in the PANI/gold nanocomposites. Antimicrobial effects of the nanocomposites with and without NIR irradiation were also examined. |
