The preparation of 3–4 nm and 10 nm gold nanoparticles capped with neutral carborane-based mercaptocarboranes, via two different preparative routes, is reported. The resulting boron-enriched nanomaterials exhibit complete dispersibility in water, opening the way for the use of these monolayer protected clusters (MPCs) in medical applications, such as boron neutron capture therapy (BNCT). These newly prepared MPCs have been characterized by FTIR, 1H and 11B NMR spectroscopy, UV-visible, centrifugal particle sizing (CPS), and, in some cases, inductively coupled plasma atomic emission spectrometry (ICP-AES). Water dispersibility exhibited by these MPCs allowed the study of the cellular uptake by HeLa cells.
报告通过两种不同的制备方法,制备出了以中性
硼烷为基础的巯基
硼烷封端的 3-4 纳米和 10 纳米
金粒子。所制备的富
硼纳米材料在
水中表现出完全分散性,为这些单层保护簇(MPC)在医疗应用(如
硼中子俘获疗法(BNCT))中的应用开辟了道路。这些新制备的 MPCs 已通过傅立叶变换红外光谱、1H 和 11B NMR 光谱、紫外-可见光谱、离心粒度分析 (CPS) 以及某些情况下的电感耦合等离子体原子发射光谱分析 (ICP-AES) 进行了表征。通过研究这些 MPCs 所表现出的
水分散性,可以了解 HeLa 细胞对其的吸收情况。