设计中空纳米金高尔夫球。
Designing hollow nano gold golf balls.
作者信息
Landon Preston B, Mo Alexander H, Zhang Chen, Emerson Chris D, Printz Adam D, Gomez Alan F, DeLaTorre Christopher J, Colburn David A M, Anzenberg Paula, Eliceiri Matthew, O'Connell Connor, Lal Ratnesh
机构信息
Department of Bioengineering, ‡Department of Mechanical and Aerospace Engineering, §Materials Science and Engineering Program, and ⊥Department of Nanoengineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States.
出版信息
ACS Appl Mater Interfaces. 2014 Jul 9;6(13):9937-41. doi: 10.1021/am502519x. Epub 2014 Jun 26.
Hollow/porous nanoparticles, including nanocarriers, nanoshells, and mesoporous materials have applications in catalysis, photonics, biosensing, and delivery of theranostic agents. Using a hierarchical template synthesis scheme, we have synthesized a nanocarrier mimicking a golf ball, consisting of (i) solid silica core with a pitted gold surface and (ii) a hollow/porous gold shell without silica. The template consisted of 100 nm polystyrene beads attached to a larger silica core. Selective gold plating of the core followed by removal of the polystyrene beads produced a golf ball-like nanostructure with 100 nm pits. Dissolution of the silica core produced a hollow/porous golf ball-like nanostructure.
中空/多孔纳米颗粒，包括纳米载体、纳米壳和介孔材料，在催化、光子学、生物传感以及治疗诊断剂的递送方面都有应用。通过一种分级模板合成方案，我们合成了一种模仿高尔夫球的纳米载体，它由（i）表面有凹坑的固态二氧化硅核心和（ii）无二氧化硅的中空/多孔金壳组成。该模板由附着在较大二氧化硅核心上的100纳米聚苯乙烯珠子构成。对核心进行选择性镀金，然后去除聚苯乙烯珠子，产生了具有100纳米凹坑的高尔夫球状纳米结构。溶解二氧化硅核心则产生了中空/多孔的高尔夫球状纳米结构。
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