콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Sustained Generation of Gold@Polydopamine Core@Shell Nanoparticles via a Remote-Controlled Explosion of Polydopamine/Gold Composites
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-03
- 저자명 Yi Seul Lee, Ji Young Bae, Hye Young Koo, Young Boo Lee and Won San Choi*
- 학술지명 Scientific Reports
- 발행처명 Scientific Reports
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
We present the synthesis of polydopamine particle-gold composites (PdopP-Au) and unique release of Au@Pdop core@shell nanoparticles (NPs) from the PdopP-Au upon external stimuli. The PdopP-Au was prepared by controlled synthesis of AuNPs on the Pdop particles. Upon near infrared (NIR) irradiation or NaBH4 treatment on the PdopP-Au, the synthesized AuNPs within the PdopPs could be burst-released as a form of Au@Pdop NPs. The PdopP-Au composite showed outstanding photothermal conversion ability under NIR irradiation due to the ultrahigh loading of the AuNPs within the PdopPs, leading to a remote-controlled explosion of the PdopP-Au and rapid formation of numerous Au@Pdop NPs. The release of the Au@Pdop NPs could be instantly stopped or re-started by off or reboot of NIR, respectively. The structure of the released Au@Pdop NPs is suitable for a catalyst or adsorbent, thus we demonstrated that the PdopP-Au composite exhibited excellent and sustained performances for environmental remediation due to its capability of the continuous production of fresh catalysts or adsorbents during the reuse.
