The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2018
Filed:
Jan. 04, 2017
Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.o.c., Taoyuan, TW;
Wen-Ching Wu, Taoyuan, TW;
Kuei-Lin Lu, Taoyuan, TW;
Yu Chang, Taoyuan, TW;
Cheng-Fang Hsu, Taoyuan, TW;
Abstract
A contrast agent precursor is revealed. The contrast agent precursor includes a 1,4,7-Tris(carbonylmethyl)-1,4,7,10-tetraazacyclododecane that forms complexes with radioisotopes or connects to a peptide. The contrast agent precursor also includes a 2-nitroimidazole that allows the precursor to become retained in hypoxic tissues According to the features mentioned above, the contrast agent prepared by the precursor has a better binding specificity, labeling accuracy and detection sensitivity. Moreover, a method for preparing the contrast agent precursor not only solves the emulsion problem generated during conventional synthesis of intermediate products but also provides a solution to the problem of residual trifluoroacetic acid. Both the yield rate and the purity of the final product are also improved.