aqueous systems

Macrocycles are promising scaffolds for the design of novel RNA targeting molecules. This collection of macrocycles for RNA consists of very diverse, drug-like molecules which incorporate certain known RNA-recognition elements (e.g. nucleobase ring systems and analogs) distributed within macrocyclic rings or peripheral fragments. As macrocyclic molecules tend to be larger than traditional screening molecules, it is vital to carefully assess and control their physicochemical properties. All macrocycles have been tested for aqueous and DMSO solubility with cutoffs applied at 10 mM in DMSO and 50 µM in PBS (pH 7.4); PAMPA permeability has also been tested for representative set of macrocycles.

脂质体是由二酰基链磷脂 (脂质双层) 在水溶液中自组装形成的球形或多层球形囊泡，可由天然或合成磷脂制成，具有生物相容性和低毒性。它们能够作为多种生物活性物质 (如药物、蛋白质、核酸等) 的递送载体，广泛应用于生物医学和化学研究。脂质体的主要优势包括1) 保护作用: 其双层结构能够保护包载分子免受酶解、氧化等影响，延长稳定性和活性；2) 主动靶向: 通过表面修饰可实现主动靶向，提高药物或分子在特定组织或细胞中的浓度；3) 可定制性: 脂质体的组成和结构可根据需求调整，如改变磷脂种类或添加靶向配体。这些特性使脂质体在开发新型药物递送系统、作为核酸载体用于基因转染、研究细胞摄取机制及药物释放动力学，以及开发功能性食品添加剂以提高营养成分生物利用度等领域具有重要应用价值。

MCE 收录了 140 个脂质体化合物，是进行脂质组学相关研究的良好工具。