Electrostatic layer-by-layer assembled multilayer films of chitosan and carbon nanotubes
Source abstract
Abstract
Multiwalled carbon nanotubes (MWCNTs) were treated in 1:3 concentrated nitric-sulfuric acid to cut them into short tubes and to create carboxyl groups at their ends. Homogeneous multilayer films of the shortened MWCNTs were assembled on a silica glass substrate by a layer-by-layer method, based on electrostatic interaction of positively charged cationic polyelectrolyte chitosan (CS) and the negatively charged and shortened MWCNTs. The film assembly and characteristics of the CS/MWCNT multilayer films were investigated. The process of assembly was monitored through ultraviolet-visible spectroscopy, which indicated homogeneous and consecutive growth. Atomic force microscopy and scanning electron microscopy were used to characterize the surface of the films. The films showed stable optical properties and were promising as biosensors.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon Nanotubes in Composites · Conducting polymers and applications · Molecular Junctions and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
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