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生物结合碳量子点用于细胞内吸收和生物成像应用
Anuja Vibhute1, Tejaswini Patil1, Arpita Pandey-Tiwari2
1Department of Medical Biotechnology and Stem Cell and Regenerative Medicine, Centre for Interdisciplinary Research, D. Y. Patil Education Society (Deemed to be University), Kolhapur, Maharashtra, 416 006, India.
Journal of fluorescence
|January 9, 2025
概括
碳量子点 (CQDs) 有效地将小牛胸腺DNA (Ct-DNA) 传递到细胞中. 这种CQD-Ct-DNA复合体对生物成像和作为非病毒载体具有前景.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 细胞生物学 细胞生物学
背景情况:
- 碳量子点 (CQD) 具有出色的生物相容性和光学特性,适合用于细胞监测.
- 它们的小尺寸 (<10 nm) 和光使得CQD成为生物成像和跟踪细胞内事件的理想纳米粒子.
研究的目的:
- 为了优化小牛胸腺DNA (Ct-DNA) 与CQDs的结合,以增强细胞内部化.
- 评估CQD-Ct-DNA复合体作为基因传递和生物成像的非病毒载体的效率.
主要方法:
- 结合CT-DNA与CQD的结合.
- 使用UV-Vis光谱学,光谱学,传输电子显微镜和泽塔电位分析进行了表征.
- 在L929和MCF-7细胞中评估细胞活力和Ct-DNA内化,与脂质胺和聚乙烯胺 (PEI) 相比.
主要成果:
- 通过表征技术证实了CQD-Ct-DNA复合物的成功形成.
- 在600μg/mL的CQD-Ct-DNA复合体表现出良好的细胞活力 (83.7%的L929,75.6%的MCF-7).
- 在CQD测试中,Ct-DNA内部化表现出较高的CQD,相比于利波菲克坦胺和PEI.
结论:
- CQD-Ct-DNA复合体是生物相容的,并有效地将Ct-DNA内化到细胞中.
- 作为生物成像和基因传递应用的非病毒载体,CQD显示出显著的潜力.
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