인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Near-infrared (NIR) light-triggered pyroptosis based on biocompatible Pt(IV)-coordinated nanomedicine for tumor precision therapy is challenging. Here, we disclose a supramolecular approach to construct a hollow-spherical supra-(carbon dots) (HS-Pt-CDs) via ultrasound-assisted J-type assembly of Pt(IV)-coordinated carbon dots (Pt-CDs). The peculiar assembling behaviors arise from the steric hindrance and lattice distortion in the bowl-like Pt-CDs caused by the coordination of Pt(IV) atoms among the sp<sup>2</sup> domains, which result in around 240 nm red-shifted absorption bands and promoting charge separation in the NIR region due to strong inter-molecular charge transfer (CT) in HS-Pt-CDs. The results reveal that HS-Pt-CDs exhibit excellent NIR light-activated photocatalytic capacities, involving the release of Pt(II) species, the generation of hydroxyl radicals, and acidification under 690 nm laser irradiation. Combined with the effective cellular uptake and tumor accumulation, HS-Pt-CDs can efficiently trigger cancer cell pyroptosis under 690 nm laser irradiation, resulting in the destruction of the primary tumor and effectively induction of strong immunogenic cell death (ICD), thereby evoking anti-tumor immune responses to suppress distant tumor and prevent cancer metastasis. Taken these merits, an important perspective of Pt(IV)-contained supra-CDs with outstanding NIR-triggered photocatalytic behaviors can be of great significance toward precision tumor phototherapy.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.