In one aspect, the disclosure provides cross-linked materials that include multivalent lectins with at least two binding sites for glucose, wherein the lectins include at least one covalently linked affinity ligand which is capable of competing with glucose for binding with at least one of said binding sites; and conjugates that include two or more separate affinity ligands bound to a conjugate framework, wherein the two or more affinity ligands compete with glucose for binding with the lectins at said binding sites and wherein conjugates are cross-linked within the material as a result of non-covalent interactions between lectins and affinity ligands on different conjugates. These materials are designed to release amounts of conjugate in response to desired concentrations of glucose. Depending on the end application, in various embodiments, the conjugates may also include a drug and/or a detectable label.
本发明提供了一种交联材料,其中包括具有至少两个
葡萄糖结合位点的多价凝集素,其中凝集素包括至少一个共价连接的亲和
配体,该亲和
配体能够与
葡萄糖竞争结合至少其中一个结合位点;以及包括两个或更多独立亲和
配体结合到共轭框架上的共轭物,其中两个或更多亲和
配体与凝集素在所述结合位点上竞争结合
葡萄糖,其中共轭物由于不同共轭物上的凝集素和亲和
配体之间的非共价相互作用而在材料内交联。这些材料被设计为在所需浓度的
葡萄糖反应下释放共轭物的量。根据最终应用,在各种实施例中,共轭物还可以包括药物和/或可检测标签。