'Supramolecular wrapping chemistry' by helix-forming polysaccharides: A powerful strategy for generating diverse polymeric nano-architectures

Munenori Numata, Seiji Shinkai

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

We have exploited novel supramolecular wrapping techniques by helix-forming polysaccharides, β-1,3-glucans, which have strong tendency to form regular helical structures on versatile nanomaterials in an induced-fit manner. This approach is totally different from that using the conventional interpolymer interactions seen in both natural and synthetic polymeric architectures, and therefore has potential to create novel polymeric architectures with diverse and unexpected functionalities. The wrapping by β-1,3-glucans enforces the entrapped guest polymer to adopt helical or twisted conformations through the convergent interpolymer interactions. On the contrary, the wrapping by chemically modified semi-artificial β-1,3-glucans can bestow the divergent self-assembling abilities on the entrapped guest polymer to create hierarchical polymeric architectures, where the polymer/β-1,3-glucan composite acts as a huge one-dimensional building block. Based on the established wrapping strategy, we have further extended the wrapping techniques toward the creation of three-dimensional polymeric architectures, in which the polymer/β-1,3- glucan composite behaves as a sort of amphiphilic block copolymers. The present wrapping system would open several paths to accelerate the development of the polymeric supramolecular assembly systems, giving the strong stimuli to the frontier of polysaccharide-based functional chemistry.

Original languageEnglish
Pages (from-to)1961-1975
Number of pages15
JournalChemical Communications
Volume47
Issue number7
DOIs
Publication statusPublished - Feb 21 2011
Externally publishedYes

Fingerprint

Glucans
Polysaccharides
Polymers
Open systems
Composite materials
Nanostructured materials
Block copolymers
Conformations

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

'Supramolecular wrapping chemistry' by helix-forming polysaccharides : A powerful strategy for generating diverse polymeric nano-architectures. / Numata, Munenori; Shinkai, Seiji.

In: Chemical Communications, Vol. 47, No. 7, 21.02.2011, p. 1961-1975.

Research output: Contribution to journalArticle

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