申请人:Massachusetts Institute of Technology
公开号:US20150225438A1
公开(公告)日:2015-08-13
The disclosure provides nanostructures (e.g., nanospheres and nano-paddlewheels) formed through transition metal-ligand (e.g., Pd(II)-, Ni(II)-, or Fe(II)-ligand of Formula (A)) coordination and junction self-assembly. The disclosure also provides supramolecular complexes that include the nanostructures connected by divalent linkers Y. The provided supramolecular complexes are able to form gels (e.g., hydrogels). The gels are suprametallogels and exhibited excellent mechanical properties without sacrificing self-healing and showed high robustness and storage modulus. The present disclosure further provides compositions (e.g., gels) that include the nanostructures or supramolecular complexes and optionally an agent (e.g., small molecule), where the nanostructures and the nanostructure moieties of the supramolecular complexes may encapsulate and slowly release the agent. The nanostructures, supramolecular complex, and compositions may be useful in delivering an agent to a subject, tissue, or cell, as super-absorbent materials, and in treating a disease (e.g., a genetic diseases, proliferative disease (e.g., cancer or benign neoplasm), hematological disease, neurological disease, gastrointestinal disease (e.g., liver disease), spleen disease, respiratory disease (e.g., lung disease), painful condition, genitourinary disease, musculoskeletal condition, infectious disease, inflammatory disease, autoimmune disease, psychiatric disorder, or metabolic disorder).
该披露提供了通过过渡金属配体(例如Pd(II)-、Ni(II)-或Fe(II)-配体的A式)协调和连接自组装形成的纳米结构(例如纳米球和纳米桨轮)。该披露还提供了由二价连接剂Y连接的纳米结构的超分子复合物。提供的超分子复合物能够形成凝胶(例如水凝胶)。这些凝胶是超金属凝胶,具有出色的机械性能,不会牺牲自愈能力,并展现出高韧性和储存模量。本披露还提供了包括纳米结构或超分子复合物以及可选药剂(例如小分子)的组合物(例如凝胶),其中纳米结构和超分子复合物的纳米结构部分可以包裹并缓慢释放药剂。这些纳米结构、超分子复合物和组合物可用于将药剂输送至受体、组织或细胞,作为超吸水材料,并用于治疗疾病(例如遗传疾病、增生性疾病(例如癌症或良性肿瘤)、血液疾病、神经系统疾病、胃肠疾病(例如肝病)、脾脏疾病、呼吸系统疾病(例如肺部疾病)、疼痛症状、泌尿生殖系统疾病、肌肉骨骼状况、传染病、炎症性疾病、自身免疫疾病、精神障碍或代谢性疾病)。