Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DYE-CONTAINING NANOPARTICLE FOR PHOTOACOUSTIC CONTRAST AGENT
Document Type and Number:
WIPO Patent Application WO/2013/125232
Kind Code:
A1
Abstract:
The purpose of the present invention is to increase the dye filling ratio in a nanoparticle to thereby improve signal intensity per particle. A nanoparticle characterized by comprising at least silicon naphthalocyanine or a derivative thereof and a surfactant, wherein the ratio of the content of silicon naphthalocyanine or the derivative thereof to the total content of the particle constituent elements excluding the surfactant is 70% or more by weight. It becomes possible to increase the dye filling ratio in the nanoparticle without deteriorating the signal intensity (light absorptivity) per dye and improve signal intensity per particle.

Inventors:
TOMATSU FUMIKO (JP)
FUKUI TATSUKI (JP)
KANAZAKI KENGO (JP)
YUASA SATOSHI (JP)
KISHI MAYUKO (JP)
SASAGURI DAISUKE (JP)
Application Number:
PCT/JP2013/000995
Publication Date:
August 29, 2013
Filing Date:
February 21, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CANON KK (JP)
International Classes:
A61K49/00; A61B8/00; A61K9/10; A61K9/14; A61K47/34; C07D487/22; C07F7/02; C07F7/10; C09B47/04; C09B67/02
Domestic Patent References:
WO2011023783A22011-03-03
WO2006030602A12006-03-23
Foreign References:
JP2010083860A2010-04-15
JP2010539138A2010-12-16
JP2009051782A2009-03-12
JP2008120721A2008-05-29
JP2006335745A2006-12-14
JP2004520443A2004-07-08
JP2005162640A2005-06-23
JP2006505498A2006-02-16
JP2005519861A2005-07-07
JP2011507807A2011-03-10
Other References:
AOKI,H. ET AL.: "Near-infrared fluorescent nanoparticle of low-bandgap n-conjugated polymer for in vivo molecular imaging", POLYMER JOURNAL, vol. 43, no. 11, 2011, TOKYO, JAPAN, pages 937 - 940
Attorney, Agent or Firm:
OKABE, Yuzuru et al. (JP)
Okabe 讓 (JP)
Download PDF:
View/Download PDF      PDF Help
Claims:



 
Previous Patent: SEISMIC ISOLATION STRUCTURE FOR HEAVY OBJECTS, AND SEISMIC ISOLATION METHOD

Next Patent: OPTICAL SCANNING DEVICE, AND IMAGE FORMING DEVICE