Carbohydrate- and Chain Length-Controlled Complexation of Carbon Nanotubes by Glycopolymers
| Autor: | Ka Keung Chan, Xue-Long Sun, Geyou Ao, Michael A Cantwell |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution Chemistry Disaccharide Surfaces and Interfaces Carbon nanotube Polymer Carbohydrate Condensed Matter Physics law.invention chemistry.chemical_compound Chain length Chemical engineering law Electrochemistry Monosaccharide General Materials Science Lactose Spectroscopy |
| Zdroj: | Langmuir : the ACS journal of surfaces and colloids. 36(33) |
| ISSN: | 1520-5827 |
| Popis: | Stable dispersions of single-wall carbon nanotubes (SWCNTs) by biopolymers in an aqueous environment facilitate their potential biological and biomedical applications. In this report, we investigated a small library of precision synthesized glycopolymers with monosaccharide and disaccharide groups for stabilizing SWCNTs via noncovalent complexation in aqueous conditions. Among the glycopolymers tested, disaccharide lactose-containing glycopolymers demonstrate effective stabilization of SWCNTs in water, which strongly depends on carbohydrate density and polymer chain length as well. The introduction of disaccharide lactose potentially makes glycopolymers less flexible as compared to those containing monosaccharide and facilitates the wrapping conformation of polymers on the surface of SWCNTs while preserving intrinsic photoluminescence of nanotubes in the near-infrared region. This work demonstrates the synergistic effects of the identity of carbohydrate pendant groups and polymer chain length of glycopolymers on stabilizing SWCNTs in water, which has not been achieved previously. |
| Databáze: | OpenAIRE |
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