Themed collection Carbon and graphene in analytical science

Welcome to this Analyst themed issue on Carbon and Graphene in Analytical Science, guest edited by Martin Pumera.

Graphene quantum dots (GQDs) and carbon quantum dots (CQDs) demonstrate unique properties in the electroanalysis field, including electroresistance, electrochemiluminescence, electrochemical and photoelectrochemical sensors.

A review on magnetic impurities in single-walled carbon nanotubes and graphene: purification and detection of impurities and impurity-induced magnetism.

Recently, the nanoarchitectonics concept has been proposed to fabricate functional materials on the basis of concerted harmonization actions to control materials organization.

A mechanical pencil lead (MPL), an easily obtainable carbon-based material with a consistent size, was used as a frame to construct an MPL-supported carbon nanotube/Au nanodendrite (MPL-CNT/AuND) sensor through simple electrodeposition of Au onto the MPL in the presence of CNTs.

Inspired by recent reports concerning the utilisation of hand drawn pencil macroelectrodes (PDEs), we report the fabrication, characterisation (physicochemical and electrochemical) and implementation (electrochemical sensing) of various PDEs drawn upon a flexible polyester substrate.

A conjugate of reduced graphene oxide and nickel nanoparticles was synthesized and deposited onto GCE as a nanocomposite of chitosan and glucose oxidase. Applications as a glucose biosensor were explored for the first time.

A sensitive laccase biosensor for phenols based on a novel graphene oxide–glycol chitosan nanohybrid.

In this work we report on the optical properties of specific synthetic carbon nano-dots (CDs) and their suitability for the development of optical biosensors.

In this paper the effect of solvent induced chemical surface enhancements upon graphitic screen-printed electrodes (SPEs) are critically benchmarked.

The graphene quantum dot-based sensor is sensitive to reaction products resulting from acetylcholinesterase activity and it allows for the determination of tacrine acting as an enzyme inhibitor.

An enzyme-free amplification strategy has been developed for sensitively and specifically detecting intracellular RNA of telomerase via GO-aided hybridization chain reaction (HCR).

A novel uniformly nitrogen doped porous graphene/Pt nanoflower was prepared by a convenient method and used as highly-efficient electrocatalyst.

Tb-CDs were firstly prepared through one-step direct carbonization method for highly selective detection of TNP.

The use of capacitively coupled contactless conductivity detection (C⁴D) for the characterisation of thin conductive graphene fibres, graphene composite fibres, and graphene coated fibrous materials is demonstrated for the first time.

We report a highly selective and sensitive biosensor for detection of both mercuric (Hg²⁺) and monomethyl mercury (CH₃Hg⁺) that are known to be highly toxic to humans.

Carbon quantum dots (CQDs) are attracting tremendous interest owing to their low toxicity, water dispersibility, biocompatibility, optical properties and wide applicability.

The use of mechanical activation (polishing) as a pre-treatment for screen-printed electrodes (SPEs) is reported and shown to give rise to an improved electroanalytical response.

In this study, carbon quantum dots were used for enhancement of the electrochemical signals of etoposide.

A selective photoluminescence method based on Carbon Quantum Dots (CQDs) functionalized with carboxymethyl-β-cyclodextrin for the direct determination of water-soluble C₆₀ fullerene has been developed.

Thiolated self-assembled reduced graphene oxide films were decorated with gold nanoparticles for development of a label-free p53-antibody immunosensor.

Graphene nanoplatelets (GNPs) are ‘tagged’ with 1-(biphen-4-yl)ferrocene, which has been studied via nano-impacts to derive the corresponding surface coverage.

Several surface activation methods such as chemical, electrochemical and plasma have been used for enhancing the electrochemical performance of carbon based electrodes for various applications.

The presence of oxidation debris greatly impact on the adsorption and electrochemical response of 1,10-phenanthroline-5,6-dione on graphene oxide.

This work reports a novel graphene electrolyte-gated field-effect transistor (EGFET) array architecture along with a compact, self-contained, and inexpensive measurement system that allows DC characterization of hundreds of graphene EGFETs as a function of V_DS and V_GS within a matter of minutes.

A comprehensive investigation of the formation of fullerenes from carbonaceous materials using laser-based mass spectrometry techniques.

Here we prepared a nanoporous multilayer film for the direct analysis of carboxyl-containing small molecules by surface-assisted laser desorption/ionization mass spectrometry with silver nanoparticles and reduced graphene oxide through layer-by-layer electrostatic self-assembling.