1996 Fiscal Year Final Research Report Summary
Growth of Inorganic Crystals on the Two-Dimensionally Oriented Molecular Surfaces
| Project/Area Number |
07455347
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
無機工業化学
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| Research Institution | Nagoya University |
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Principal Investigator |
KOUMOTO Kunihito Nagoya University, Graduate School of Engineering, Professor, 工学部, 教授 (30133094)
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| Co-Investigator(Kenkyū-buntansha) |
SEO Won Son Nagoya University, Graduate School of Engineering, Research Associa, 工学部, 助手 (30242829)
SUZUKI Yutaka Nagoya University, Graduate School of Engineering, Research Associa, 工学部, 助手 (60023214)
KUWABARA Katsumi Nagoya University, Graduate School of Engineering, Assistant Profess, 工学部, 講師 (40023262)
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| Project Period (FY) |
1995 – 1996
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| Keywords | Crystal growth / Monolayr / LB film / Molecular recognition / Interface / Preferred Orientation / Morphology / Templating |
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| Research Abstract |
The present study has been carried out for the purpose of establishing the fundamentals to develop a low-temperature synthesis and morphology control method for inorganic functional materials which is based on the molecular recognition phenomena at the inorganic-organic interfaces. Hydroxyapatete, magnetitie, and AgCl crystals were grown under Langmuir monolayrs of various surfactant molecules, and metals such as Bi, Zn, and Sn were vapor-deposited on the Langmuir-Blodgett (LB) films with either hydrophilic or hydrophobic surfaces. Apatite and AgCl were both grown under the monolayrs with their specific crystallographic planes aligning parallel to the monolayrs due to their simple growth reactions, while magnetite films grown exhibited no such preferred orientation possibly because of the complicated reaction process. Molecular recognition was found to be effective for controlling the inorganic morphology even in a dry process where only weak interface interactions can be utilized ; large oriented crystals were grown on the hydrophobic surface. The results obtained in the present study firmly indicate a promising future for biomimetic materials synthesis and morphology control.
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