Related Experiment Video
Updated: Jan 28, 2026

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma
Published on: February 2, 2012
Single-walled carbon nanotube based coating modified with reduced graphene oxide for the design of amperometric
Jurgis Barkauskas1, Lina Mikoliunaite2, Ieva Paklonskaite1
1Department of Inorganic Chemistry, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania.
Abstract:
In this study a polycarbonate filter membrane (PcFM) with 400 nm diameter holes was covered/protruded by single walled carbon nanotubes (SWCNT) and then formed PcFM/SWCNT structure was covered by thin layer of graphene oxide (GO) or reduced graphene oxide (rGO) in order to get the multilayered PcFM/SWCNT/GO and PcFM/SWCNT/rGO coatings, respectively. It was determined that the SWCNTs filaments were able to form a layer on the polycarbonate membrane having a number of carbon nanotube arranged in different orientations. A fraction of SWCNT filaments protruded through the holes of polycarbonate membrane and in such way significantly enhanced the adhesion of SWCNT-based layer and provided electrical conductivity across the PcFM. Atomic force microscopy (AFM), scanning electron microscopy (SEM) images and Raman spectroscopy-based evaluation revealed the characteristic morphology features: wide distribution of height profile, separate GO/rGO flakes on the top of PcFM/SWCNT/GO structure and close attachment of rGO flakes on the top of multilayered PcFM/SWCNT/rGO coating. Performed contact angle measurement (CAM) enabled to determine the surface energy components and wettability data of prepared coatings. Both PcFM/SWCNT/GO and PcFM/SWCNT/rGO coatings were modified with glucose oxidase (GOx). Amperometric measurements revealed that multilayered PcFM/SWCNT/rGO/GOx coating is the most suitable structure for glucose biosensor design.
More Related Videos
08:57Scalable Syntheses of Graphene Oxide and Reduced Graphene Oxide using Cascade Design Oxidation and Highly Basic Reduction Reactions
Published on: July 3, 2025
09:15Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors
Published on: November 22, 2016
Related Concept Videos
Redox Titration: Other Oxidizing and Reducing Agents
Oxidation Numbers
Phase I Reactions: Oxidation of Carbon-Heteroatom and Miscellaneous Systems
In carbon-nitrogen systems, aliphatic and aromatic amines can undergo oxidative reactions. Secondary and tertiary amines, like those found in tricyclic antidepressants, can undergo N-dealkylation, a process that involves the oxidation of the alkyl group. In addition, oxidative...
Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
Carbon Skeletons
Pyruvate Oxidation
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...