A pharmaceutical composition includes a plurality of metal nanoparticles and at least one therapeutic agent. Each of the metal nanoparticles includes a core and a stabilizing agent coated on a surface of the core. The at least one therapeutic agent is attached to the stabilizing agent of the metal nanoparticles. Each of the therapeutic agent is an amphiphilic compound and has at least one hydrophobic chain interacting with the stabilizing agent. The pharmaceutical composition may further include a polymer shell encapsulating the metal nanoparticles and the therapeutic agent for enabling controlled release of the therapeutic agent. The pharmaceutical compositions are bifunctional and may be used for diagnosing and treating cancer. Methods for using the pharmaceutical compositions in conjunction with radiation therapy to diagnose and treat cancer are also provided.
                            一种药物组合物包括多个
金属纳米粒子和至少一种治疗剂。每个
金属纳米粒子都包括一个核心和涂在核心表面的稳定剂。至少一种治疗剂附着在
金属纳米颗粒的稳定剂上。每种治疗剂都是两性化合物,至少有一条疏
水链与稳定剂相互作用。药物组合物可进一步包括包裹
金属纳米粒子和治疗剂的聚合物外壳,以实现治疗剂的控制释放。药物组合物具有双重功能,可用于诊断和治疗癌症。还提供了结合放射治疗使用药物组合物诊断和治疗癌症的方法。