2006 Fiscal Year Final Research Report Summary
Expression of molecular functions of metal oxide nanofibers
| Project/Area Number |
16350038
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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 |
Inorganic chemistry
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
ICHINOSE Izumi National Institute for Materials Science, Organic Nanomaterials Centre, Managing Director, ナノ有機センター, センター長 (50243910)
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| Co-Investigator(Kenkyū-buntansha) |
HUANG Jianguo RIKEN, Topochemical Design Laboratory, Researcher, トポケミカルデザイン研究チーム, 研究員 (60373362)
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| Project Period (FY) |
2004 – 2006
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| Keywords | nanostrand / cadmium hydroxide / copper hydroxide / zinc hydroxide / polymer coating / trapping of DNA / nanofibrous platinum sheet / protein separation |
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| Research Abstract |
In cases of organic molecules and polymers, "molecules" with individual shapes show superior functions. If the properties of organic molecules with spatially independent structures are reproduced in inorganic materials, we will obtain a new kind of functional units. In the present research, we aimed at pursuing such molecular functions in metal oxide nanomaterials. The followings are the concrete achievements.
1.Atomic level elucidation of the structure of cadmium hydroxide nanostrand
2.Formation of bundle-like structure of nanostrands and dyes.
3.Capture and release of DNA by nanostrands
4.Discoveries of copper and zinc hydroxide nanostrands and their structure analysis
5.Formation of inorganic nanostrand films and their nanocomposites
6.Fabrication of nanofibrous platinum sheets by using inorganic nanostrands
7.Polymer coating of nanostrands and the application for protein separation
8.Polymer coating of cellulose and trapping of proteins.
The long and thin inorganic nanostrands have abundant positive charges on their surfaces, so that they give various nanocomposite materials with negatively charged molecules, polymers, nanoparticles, etc. In addition, the nanostrands with extremely large aspect ratios are readily separated from the solution by filtration. The resulting nanometer-thick free-standing films show unprecedented separation functions. These results will largely contribute to the development of new chemical processes and gas separation technologies.
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