Affiliation:
1. Molecular Biophysics group Peter Debye Institute for Soft Matter Physics Universität Leipzig 04103 Leipzig Germany
2. Heterogeneous Catalysis Institute of Chemical Technology Universität Leipzig 04103 Leipzig Germany
Abstract
AbstractDNA origami molds allow a shape‐controlled growth of metallic nanoparticles. So far, this approach is limited to gold and silver. Here, the fabrication of linear palladium nanostructures with controlled lengths and patterns is demonstrated. To obtain nucleation centers for a seeded growth, a synthesis procedure of palladium nanoparticles (PdNPs) using Bis(p‐sulfonatophenyl)phenylphosphine (BSPP) both as reductant and stabilizer is developed to establish an efficient functionalization protocol of the particles with single‐stranded DNA. Attaching the functionalized particles to complementary DNA strands inside DNA mold cavities supports subsequently a highly specific seeded palladium deposition. This provides rod‐like PdNPs with diameters of 20–35 nm of grainy morphology. Using an annealing procedure and a post‐reduction step with hydrogen, homogeneous palladium nanostructures can be obtained. With the adaptation of the procedure to palladium the capabilities of the mold‐based tool‐box are expanded. In the future, this may allow a facile adaptation of the mold approach to less noble metals including magnetic materials such as Ni and Co.
Funder
Deutsche Forschungsgemeinschaft
Subject
Biomaterials,Biotechnology,General Materials Science,General Chemistry
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献