Title:
MEASUREMENT INSTRUMENT, MEASUREMENT KIT USING THE SAME, MEASUREMENT METHOD, MEASUREMENT DEVICE, AND PIEZOELECTRIC OSCILLATOR REPRODUCING METHOD
Document Type and Number:
WIPO Patent Application WO/2007/018187
Kind Code:
A1
Abstract:
When a piezoelectric oscillator is arranged at a detection portion of a reaction vessel,
a piezoelectric oscillator sensor film can be easily generated and the sensor
can easily be reproduced, thereby enabling re-use. A measurement instrument (1)
includes a reaction vessel (2) capable of supplying a measurement object (10)
in a sample. The reaction vessel (2) includes a piezoelectric oscillator (6)
arranged at a detection portion (5) capable of detecting a measurement object (10);
a magnetic force generation material (7) capable of selectively and reversibly forming
a magnetic field in the piezoelectric oscillator (6); and a carrier (11) formed
by magnetic particles (11a) and a trapper (11b) capable of specifically binding
the measurement object (10) or formed by the magnetic particles (11a) and an object
(11c) similar to the measurement object and magnetically carried on the surface
of the piezoelectric oscillator (6) when a magnetic field is applied to the piezoelectric
oscillator (6). There are also provided a measurement kit using the measurement
instrument (1), a measuring method and device for measuring the concentration
of a measurement object, and a piezoelectric oscillator reproducing method.
Inventors:
TSUNODA HARUKI (JP)
TOMITA AKIHITO (JP)
NOZAKI TAKAAKI (JP)
TOMITA AKIHITO (JP)
NOZAKI TAKAAKI (JP)
Application Number:
PCT/JP2006/315614
Publication Date:
February 15, 2007
Filing Date:
August 07, 2006
Export Citation:
Assignee:
KYOWA MEDEX CO LTD (JP)
CITIZEN WATCH CO LTD (JP)
TSUNODA HARUKI (JP)
TOMITA AKIHITO (JP)
NOZAKI TAKAAKI (JP)
CITIZEN WATCH CO LTD (JP)
TSUNODA HARUKI (JP)
TOMITA AKIHITO (JP)
NOZAKI TAKAAKI (JP)
International Classes:
G01N5/02
Domestic Patent References:
| WO2005031316A1 | 2005-04-07 |
Foreign References:
| JPS6435269A | 1989-02-06 | |||
| JPH04320967A | 1992-11-11 | |||
| JP2000283905A | 2000-10-13 | |||
| JP2003307481A | 2003-10-31 | |||
| JPH07225233A | 1995-08-22 | |||
| JPH0688779A | 1994-03-29 | |||
| JPS5954943A | 1984-03-29 | |||
| JP2005274164A | 2005-10-06 |
Other References:
LI J. ET AL.: "[Piezoelectric immunosensor based on magnetic nanoparticles with simple immobilization procedures]", ANALYTICA CHIMICA ACTA, vol. 81, no. 2, 3 April 2003 (2003-04-03), pages 191 - 198, XP003003846
Attorney, Agent or Firm:
KOIZUMI, Masahiro (Asahi Bldg. 5-6, Toranomon 1-chom, Tokyo 03 ., JP)
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