Bioactive protein nanoarrays on nickel oxide surfaces formed by dip-pen nanolithography

被引:94
作者
Nam, JM
Han, SW
Lee, KB
Liu, XG
Ratner, MA
Mirkin, CA
机构
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[2] Northwestern Univ, Inst Nanotechnol, Evanston, IL 60208 USA
关键词
atomic force microscopy; nanolithography; nickel; protein arrays; proteins;
D O I
10.1002/anie.200353203
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Ink flowing from a pen: Direct-write dippen nanolithography of His-tagged proteins (ubiquitin and thioredoxin) has been used to generate biologically active protein nanoarrays with feature sizes as small as 80 nm on nickel oxide surfaces without the need for an applied electric field. The protein molecules in this system seem to diffuse from the Ni-coated atomic force microscopy (AFM) tips to the Ni-coated substrate (see diagram).
引用
收藏
页码:1246 / 1249
页数:4
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