Control of Marine Harmful Algal Blooms Using Photothermal Polymer Nanoparticles
발표자
구민정 (국립부경대)
연구책임자
곽민석 (부경대학교)
초록
내용
Climate change has intensified the occurrence of harmful algal blooms in marine environments, leading to severe ecological and economic impacts through their production of toxins and water quality deterioration. To address this growing concern, we developed polymeric nanoparticles incorporating two distinct fluorescent dyes stabilized through a semi-interpenetrating network (sIPN) structure. The effectiveness of these engineered nanoparticles was evaluated against two red-tide causing species, Akashiwo sanguinea and Alexandrium pacificum. The nanoparticles demonstrated dual functionality: cellular visualization through UV-excited fluorescence using Lumogen® Violet(LV), and photothermal treatment capability using near-infrared (NIR) responsive Lumogen® IR788. When Akashiwo sanguinea cells treated with IR788-sIPN nanoparticles were exposed to NIR laser irradiation, significant reduction in cell viability was observed due to the photothermal effect.