Patterned self-assembly of magnetic biomolecules on semiconductor substrates

The paper reports on the methods of preparing and patterning magnetic metallothionein (Mn,Cd-MT-2) molecules on semiconductor surfaces. The molecules are placed into nanopores prepared on silicon (0 0 1) substrates. We observe the self-assembled growth of those MT molecules on the patterned Si surfa...

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Bibliographic Details
Published in:The Journal of physics and chemistry of solids 2007-05, Vol.68 (5), p.1211-1214
Main Authors: Sun, Kien Wen, Chang, Chia-Ching
Format: Article
Language:English
Subjects:
A. Nanostructures
A. Semiconductors
Analytical, structural and metabolic biochemistry
Biological and medical sciences
C. Electron microscopy
D. Magnetic properties
Fundamental and applied biological sciences. Psychology
Miscellaneous
Proteins
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Summary:The paper reports on the methods of preparing and patterning magnetic metallothionein (Mn,Cd-MT-2) molecules on semiconductor surfaces. The molecules are placed into nanopores prepared on silicon (0 0 1) substrates. We observe the self-assembled growth of those MT molecules on the patterned Si surface. Dense arrays of molecular rods are demonstrated on templates with small pores and pitch sizes. Then the structures of the self-assembled protein are studied by atomic force microscopy (AFM) and magnetic force microscopy (MFM). Our measurements indicate that molecular self-assembly has a magnetic dipole moment which interacts with the applied magnetic field.
ISSN:0022-3697
1879-2553
DOI:10.1016/j.jpcs.2007.01.035