Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), & CNB-CSIC-IMDEA Nanociencia Associated Unit "Unidad de Nanobiotecnología" Cantoblanco, 28049 Madrid, Spain.
Chem Commun (Camb). 2014 Mar 21;50(23):3018-20. doi: 10.1039/c3cc47862a.
Gold nanoparticles functionalized with oligonucleotides that bear a cholesterol group are used as gene sensors. The hydrophobic molecule is buried inside the nanostructure but when the complementary RNA sequence is present the structure unfolds exposing the cholesterol group to the water molecules. This rearrangement leads to the aggregation of the nanostructures.
经胆固醇基团修饰的寡核苷酸功能化的金纳米粒子可用作基因传感器。疏水分子被包裹在纳米结构内部,但当互补的 RNA 序列存在时,结构会展开,暴露出胆固醇基团与水分子接触。这种重排导致纳米结构的聚集。