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
Cerium oxide (CeO₂) and copper-doped cerium oxide (Cu-CeO₂) nanoparticles were synthesized using Psidium guajava leaf extract as a reducing and stabilizing agent. Characterization techniques included X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) analysis. XRD analysis confirmed the crystalline nature of the CeO₂ nanoparticles, revealing a cubic fluorite structure. The incorporation of Cu ions into the CeO₂ lattice was evidenced by shifts in the diffraction peaks. SEM images showed spherical nanoparticles with smooth surfaces. EDX analysis confirmed the presence of copper, validating the success of the doping process. UV-Vis spectroscopy displayed absorption peaks at 306 and 316 nm, indicative of the photocatalytic activity of the nanoparticles. The synthesized nanoparticles exhibited antimicrobial activity against three bacterial strains, with a notable inhibitory effect on Klebsiella pneumoniae. Additionally, their anticancer potential was evaluated on two cell lines: HCT116 (colorectal cancer) and L929 (fibrosarcoma). Notably, pure CeO₂ nanoparticles exhibited lower toxicity in both cases. These findings suggest promising biomedical applications for the synthesized nanoparticles.
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.