热诺斯基稀土注的碳点:一种有效的纳米载体,用于在结肠癌中进行甲索特酸的输送
Paul Matthew A1, Mangaiyarkarasi R1
1Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India.
ACS omega
|March 2, 2026
概括
甲基酸结合的基化碳点 (CDTb-MTX) 在向结肠癌治疗方面表现有前途. 这种创新的药物输送平台与自由甲状腺素相比,对Caco-2细胞有增强的细胞毒性,具有良好的生物相容性.
科学领域:
- 纳米技术 纳米技术
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 有针对性的药物输送系统对于提高治疗效率和尽量减少癌症治疗中的副作用至关重要.
- 碳点 (CD) 具有独特的光学特性和生物相容性,使其适合于theranostic应用.
- 甲托雷克萨特 (MTX) 是一种广泛使用的化疗剂,但其疗效可能受到非特异性分布的限制.
研究的目的:
- 开发和表征甲基甲酸结合的基化碳点 (CDTb-MTX) 用于向结肠癌治疗.
- 评估CDTb-MTX系统的物理化学特性,药物负载,释放动力学和生物相容性.
- 评估CDTb-MTX对Caco-2结肠癌细胞的体外细胞毒性和治疗潜力.
主要方法:
- 通过微波辅助方法和化学沉合成受添加的碳点 (CDTb).
- 在CDTb纳米颗粒上对甲基酸 (MTX) 的结合.
- 使用XRD,HR-TEM,XPS,DLS,UV-Vis和光光谱学进行全面的物理化学表征.
- 在L929和Caco-2细胞系上进行体外药物释放研究,血液溶解测定和细胞毒性评估.
主要成果:
- CDTb-MTX纳米颗粒成功合成了受控大小 (6.22 nm) 和表面电荷 (+1.1 mV),表明增强了细胞相互作用.
- 实现了MTX的高药载荷 (98.42%) 和持续释放 (24小时后85.23%).
- CDTb纳米粒子表现出极好的生物相容性和适合生物成像的光特性 (QY=57.4%,寿命=8.79 ns).
- 与自由MTX相比,CDTb-MTX显示显著增强对Caco-2结肠癌细胞的细胞毒性.
结论:
- 开发的CDTb-MTX系统代表了针对性结肠癌治疗的有前途的多功能治疗平台.
- 结合了terbium-doped碳点和甲状腺素的组合,提高了药物输送效率和治疗结果.
- 这种方法有可能改善特定地点的药物向性,并减少癌症治疗中的全身毒性.
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