| Paper Abstract and Keywords |
| Presentation |
2007-01-26 09:00
The measurement of the trace ion in the saliva by using nanospace
Hiroshi Abe, Kumi Masunaga, Kenshi Hayashi, Kiyoshi Toko (Kyushu Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
. Detection of heavy metal ions is important in circumstance control in soil or in medical check. We examined anodic stripping voltammetry (ASV) for high sensitive detection of metal ions in saliva so far, and high sensitivity of ppb was achieved, however, selectivity of metal ion species was insufficient, in this case coexisting metal ions affect potential values where the stripping occurs. Biological ion channels are constructed of membrane proteins which have a hole with electrical affinity and size-controlled pore. The electrostatic affinity with ions is realized by a pore surrounded by carbonyl groups. Selectivity by a pore size is essential for a molecular recognition with nano-scale structures (nanospace). Our strategy on development of chemical sensors is utilization of low-dimensional nano-scale structures with electrical conductivity illustrated in Fig.1. Generally molecular receptors are designed through chemical structure of the molecule, on the other hand, receptor properties can be designed by means of structure of molecular aggregation in nano scale. The ion channel can be realized by nanopore depicted in Fig.1, where size- controllable pores are fabricated on the SAMs. Uptake of metal ions can be detected by electrochemical impedance spectroscopy (EIS), where the ions are taken into the pore and alter the membrane impedance. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
saliva / stripping voltammetry / self-assembled monolayer / metal ion / photo reactive / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 106, no. 506, MBE2006-96, pp. 1-4, Jan. 2007. |
| Paper # |
MBE2006-96 |
| Date of Issue |
2007-01-19 (MBE) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
MBE |
| Conference Date |
2007-01-26 - 2007-01-26 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kagoshima-Shichoson-Jichi-Kaikan Bldg. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
MBE |
| Conference Code |
2007-01-MBE |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
The measurement of the trace ion in the saliva by using nanospace |
| Sub Title (in English) |
|
| Keyword(1) |
saliva |
| Keyword(2) |
stripping voltammetry |
| Keyword(3) |
self-assembled monolayer |
| Keyword(4) |
metal ion |
| Keyword(5) |
photo reactive |
| Keyword(6) |
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| Keyword(7) |
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| 1st Author's Name |
Hiroshi Abe |
| 1st Author's Affiliation |
Kyushu University (Kyushu Univ.) |
| 2nd Author's Name |
Kumi Masunaga |
| 2nd Author's Affiliation |
Kyushu University (Kyushu Univ.) |
| 3rd Author's Name |
Kenshi Hayashi |
| 3rd Author's Affiliation |
Kyushu University (Kyushu Univ.) |
| 4th Author's Name |
Kiyoshi Toko |
| 4th Author's Affiliation |
Kyushu University (Kyushu Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2007-01-26 09:00:00 |
| Presentation Time |
20 minutes |
| Registration for |
MBE |
| Paper # |
MBE2006-96 |
| Volume (vol) |
vol.106 |
| Number (no) |
no.506 |
| Page |
pp.1-4 |
| #Pages |
4 |
| Date of Issue |
2007-01-19 (MBE) |