高效界面自组装 MXene/Ag NPs 薄膜纳米载体用于 SERS 追踪药物递送。
Efficient interfacial self-assembled MXene/Ag NPs film nanocarriers for SERS-traceable drug delivery.
机构信息
College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, People's Republic of China.
Department of TCM Gynecology, Hangzhou Women's Hospital, Hangzhou, 310008, People's Republic of China.
出版信息
Anal Bioanal Chem. 2023 Sep;415(22):5379-5389. doi: 10.1007/s00216-023-04813-5. Epub 2023 Jul 1.
Combining the unique advantages of two-dimensional transition metal carbon/nitrogen compounds (MXene) and the excellent surface-enhanced Raman scattering (SERS) performance of noble metal materials, MXene/Ag NPs films were proposed as nanocarriers for SERS-traceable drug delivery. The films were prepared by two-step self-assembly on positively charged silicon wafers using virtue of the high evaporation of ethyl acetate, the Marangoni effect, and an oil/water/oil three-phase system. With 4-mercaptobenzoic acid (4-MBA) as the probe molecule, the SERS detection limit was 10 M and had shown a good linear relationship in the range of 10-10 M. Simultaneously, the film had good uniformity, repeatability, and stability. When TiCT/Ag NPs films were used as nanocarriers, the anticancer drug doxorubicin (DOX) was loaded onto the surface through 4-MBA, and the tracking and monitoring were realized by SERS. The addition of glutathione (GSH) triggered the thiol exchange reaction, resulting in the shedding of 4-MBA from the surface of the film, which indirectly achieved the efficient release of DOX. Furthermore, the loading of DOX and the drug release effect triggered by GSH maintained a certain stability in serum, which provided a potential possibility for the subsequent loading and release of drugs by films with three-dimensional structures as scaffolds in biological therapy. Self-assembled MXene/Ag NPs film nanocarriers for SERS-traceable drug delivery and GSH-triggered high-efficiency drug release.
结合二维过渡金属碳/氮化合物(MXene)的独特优势和贵金属材料优异的表面增强拉曼散射(SERS)性能,MXene/Ag NPs 薄膜被提出作为 SERS 可追踪药物递送的纳米载体。该薄膜通过乙酸乙酯的高挥发度、马兰戈尼效应和油/水/油三相体系在带正电荷的硅片上通过两步自组装制备而成。以 4-巯基苯甲酸(4-MBA)作为探针分子,SERS 检测限为 10-10 M,在 10-10 M 范围内表现出良好的线性关系。同时,该薄膜具有良好的均匀性、重复性和稳定性。当 TiCT/Ag NPs 薄膜用作纳米载体时,通过 4-MBA 将抗癌药物阿霉素(DOX)负载到表面上,并通过 SERS 实现跟踪和监测。谷胱甘肽(GSH)的加入引发了巯基交换反应,导致薄膜表面上的 4-MBA 脱落,从而间接实现了 DOX 的高效释放。此外,DOX 的负载和 GSH 触发的药物释放效果在血清中保持一定的稳定性,这为随后以具有三维结构的支架为生物治疗中的薄膜进行药物负载和释放提供了潜在的可能性。用于 SERS 可追踪药物递送和 GSH 触发高效药物释放的自组装 MXene/Ag NPs 薄膜纳米载体。