Layer-by-Layer-Assembled AuNPs-Decorated First-Generation Poly(amidoamine) Dendrimer with Reduced Graphene Oxide Core as Highly Sensitive Biosensing Platform with Controllable 3D Nanoarchitecture for Rapid Voltammetric Analysis of Ultratrace DNA Hybridization.
本文报道了一种通过层层组装(LBL)构建的超灵敏无标记电化学生物传感平台:以还原氧化石墨烯(rGO)为核、第一代聚酰胺胺(G1PD)树枝状大分子共价功能化并负载金纳米颗粒(AuNPs),形成可控三维纳米结构。首先将巯基丙酸(MPA)自组装于金电极表面,随后利用EDC偶联将G1PD氨基端与rGO羧基端共价连接形成的GG1PD接枝到MP...