標題: | Self-assembled molecular magnets on patterned silicon substrates: Bridging bio-molecules with nanoelectronics |
作者: | Chang, Chia-Ching Sun, Kien Wen Lee, Shang-Fan Kan, Lou-Sing 生物科技學系 應用化學系 應用化學系分子科學碩博班 Department of Biological Science and Technology Department of Applied Chemistry Institute of Molecular science |
關鍵字: | silicon;surface modification;electron beam lithography;molecular magnet |
公開日期: | 1-四月-2007 |
摘要: | The paper reports the methods of preparing molecular magnets and patterning of the molecules on a semiconductor surface. A highly magnetically aligned metallothionein containing Mn and Cd (Mn,Cd-MT-2) is first synthesized, and the molecules are then placed into nanopores prepared on silicon (001) surfaces using electron beam lithography and reactive ion-etching techniques. We have observed the self-assemble growth of the NIT molecules on the patterned Si surface such that the NIT molecules have grown into rod or ring type three-dimensional nanostructures, depending on the patterned nanostructures on the surface. We also provide scanning electron microscopy, atomic force microscopy, and magnetic force microscope studies of the molecular nanostructures. This engineered molecule shows molecular magnetization and is biocompatible with conventional semiconductors. These features make Mn,Cd-MT-2 a good candidate for biological applications and sensing sources of new nanodevices. Using molecular self-assembly and topographical patterning of the semiconductor substrate, we can close the gap between bio-molecules and nanoelectronics built into the semiconductor chip. (c) 2006 Elsevier Ltd. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.biomaterials.2006.11.048 http://hdl.handle.net/11536/10972 |
ISSN: | 0142-9612 |
DOI: | 10.1016/j.biomaterials.2006.11.048 |
期刊: | BIOMATERIALS |
Volume: | 28 |
Issue: | 11 |
起始頁: | 1941 |
結束頁: | 1947 |
顯示於類別: | 期刊論文 |