Royston Elizabeth, Ghosh Ayan, Kofinas Peter, Harris Michael T, Culver James N
School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
Langmuir. 2008 Feb 5;24(3):906-12. doi: 10.1021/la7016424. Epub 2007 Dec 23.
High area nickel and cobalt surfaces were assembled using modified Tobacco mosaic virus (TMV) templates. Rod-shaped TMV templates (300 x 18 nm) engineered to encode unique cysteine residues were self-assembled onto gold patterned surfaces in a vertically oriented fashion, producing a >10-fold increase in surface area. Electroless deposition of ionic metals onto surface-assembled virus templates produced uniform metal coatings up to 40 nm in thickness. Within a nickel-zinc battery system, the incorporation of virus-assembled electrode surfaces more than doubled the total electrode capacity. When combined, these findings demonstrate that surface-assembled virus templates provide a robust platform for the fabrication of oriented high surface area materials.
使用经过修饰的烟草花叶病毒（TMV）模板组装出高表面积的镍和钴表面。经过工程改造以编码独特半胱氨酸残基的棒状TMV模板（300×18纳米）以垂直取向的方式自组装到有图案的金表面上，使表面积增加了10倍以上。通过化学镀将离子金属沉积到表面组装的病毒模板上，可产生厚度达40纳米的均匀金属涂层。在镍锌电池系统中，掺入病毒组装电极表面使总电极容量增加了一倍多。综合来看，这些发现表明表面组装的病毒模板为制备定向高表面积材料提供了一个强大的平台。
