Volume 43, Issue 10 pp. 1246-1249
Communication

Bioactive Protein Nanoarrays on Nickel Oxide Surfaces Formed by Dip-Pen Nanolithography

Jwa-Min Nam

Jwa-Min Nam

Department of Chemistry and Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA, Fax: (+1) 847-467-5123

These authors contributally equally to this work.

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Sang Woo Han Dr.

Sang Woo Han Dr.

Department of Chemistry and Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA, Fax: (+1) 847-467-5123

These authors contributally equally to this work.

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Ki-Bum Lee

Ki-Bum Lee

Department of Chemistry and Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA, Fax: (+1) 847-467-5123

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Xiaogang Liu

Xiaogang Liu

Department of Chemistry and Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA, Fax: (+1) 847-467-5123

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Mark A. Ratner

Mark A. Ratner

Department of Chemistry and Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA, Fax: (+1) 847-467-5123

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Chad A. Mirkin Prof.

Chad A. Mirkin Prof.

Department of Chemistry and Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA, Fax: (+1) 847-467-5123

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First published: 25 February 2004
Citations: 110

C.A.M. and M.A.R. acknowledge the National Sciences Foundation NSEC program and the Department of Defence MURI/DURINT program for support of this research. S.W.H. acknowledges KOSEF for support of a postdoctoral fellowship.

Graphical Abstract

Ink flowing from a pen: Direct-write dip-pen 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).

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