Nanoparticles of Adaptive Supramolecular Networks Self-Assembled from Nucleotides and Lanthanide Ions

Ryuhei Nishiyabu, Nozomi Hashimoto, Ten Cho, Kazuto Watanabe, Takefumi Yasunaga, Ayataka Endo, Kenji Kaneko, Takuro Niidome, Masaharu Murata, Chihaya Adachi, Yoshiki Katayama, Makoto Hashizume, Nobuo Kimizuka

研究成果: Contribution to journalArticle査読

258 被引用数 (Scopus)

抄録

Amorphous nanoparticles of supramolecular coordination polymer networks are spontaneously self-assembled from nucleotides and lanthanide ions in water. They show intrinsic functions such as energy transfer from nucleobase to lanthanide ions and excellent performance as contrast enhancing agents for magnetic resonance imaging(MRI). Furthermore, adaptive inclusion properties are observed in the self- assembly process: functional materials such as fluorescent dyes, metal nanoparticles, and proteins are facilely encapsulated. Dyes in these nanoparticles fluoresce in high quantum yields with a single exponential decay, indicating that guest molecules are monomerically wrapped in the network. Gold nanoparticles and ferritin were also wrapped by the supramolecular shells. In addition, these nucleotide/lanthanide nanoparticles also serve as scaffolds for immobilizing enzymes. The adaptive nature of present supramolecular nanoparticles provides a versatile platform that can be utilized in a variety of applications ranging from material to biomedical sciences. As examples, biocompatibility and liver-directing characteristics in in vivo tissue localization experiments are demonstrated.

本文言語英語
ページ(範囲)2151-2158
ページ数8
ジャーナルJournal of the American Chemical Society
131
6
DOI
出版ステータス出版済み - 2 18 2009

All Science Journal Classification (ASJC) codes

  • 触媒
  • 化学 (全般)
  • 生化学
  • コロイド化学および表面化学

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