Kyushu University

Nissan Chemical Industries Limited

Institute of Systems, Information Technologies and Nanotechnologies

Tatsuhiro Yamamoto

Seiji Shinkai

Koichiro Saruhashi

Osamu Hirata

Fumiyasu Ono

Yoshiki Katayama

Hiroaki Shimokawa

A novel gelator including a sugar derivative; a gelator including a compound of Formula (1) or Formula (2): wherein Ris a linear or branched alkyl group having a carbon atom number of 9 to 20, a cyclic alkyl group having a carbon atom number of 13 to 20, or a linear or branched alkenyl group having a carbon atom number of 9 to 20, Ris a hydrogen atom, a linear or branched alkyl group having a carbon atom number of 1 to 10, or an aryl group optionally having a substituent, and Rand Rare hydroxy groups.

Sugar derivative gelators

An MRI contrast agent enables direct detection and imaging of exfoliated vascular endothelial sites. The MRI contrast agent includes an imaging unit which contains an unpaired electron-carrying atom and/or molecule and is capable of amplifying or reducing MRI signals, and a detection unit which is bonded to the imaging unit and is capable of selectively recognizing exfoliated vascular endothelial sites and binding thereto. The detection unit is exemplified by one having a chemical structure expressed by the following formula (I), wherein at least one of R-Ris, for example, a sulfonic acid group, and X is, for example, a phenyl group which may be substituted: 

MRI contrast agents

Growing community of inventors

Fukuoka, Japan

Tatsuhiro Yamamoto