Dye-sensitised preparation of chiral plasmonic Ag nanoparticles on helical polysaccharides

作者：Tsuchiya Youichi^*; Noguchi Takao; Yoshihara Daisuke; Yamamoto Tatsuhiro; Shiraki Tomohiro; Tamaru Shun Ichi; Shinkai Seiji

来源：Supramolecular Chemistry, 2013, 25(9-11): 748-755.

DOI：10.1080/10610278.2013.835049

• silver nanoparticle
• polysaccharide
• dye-sensitisation
• photo-reduction

We demonstrate a new method for the preparation of silver nanoparticles (AgNPs) utilising dye-sensitised photo-reduction on triple-stranded -1,3-glucans. Reflecting the chiral helical structure of these polysaccharides, the chiral plasmonic AgNPs were yielded when hydrophobic dyes strongly interacting with the helical -1,3-glucan main-chain were used. This system offers a new strategy to create chiral plasmonic AgNPs and a new idea to utilise helix-forming polysaccharides as a chiral template.

• 出版日期2013-9-18