Themed collection Editors’ collection: Graphene

Biosensors with high sensitivity, selectivity and a low limit of detection, reaching nano/picomolar concentrations of biomolecules, are important to the medical sciences and healthcare industry for evaluating physiological and metabolic parameters.

The structure and mechanism of graphene/silicon solar cells, and several key strategies to improve the performance of the cells.

The present article is mainly focused on literature studies centred on polyolefin (especially PE and PP) nanocomposites based on graphene and its derivatives.

In recent years, two-dimensional atomic-level thickness crystal materials have attracted widespread interest such as graphene, hexagonal boron nitride (h-BN), silicene, germanium, black phosphorus (BP), transition metal sulfides and so on.

Graphene has emerged as the most popular topic in the active research field since graphene's discovery in 2004 by Andrei Geim and Kostya Novoselov.

We report the fabrication of an antibody-modified reduced graphene oxide film, which can be used to efficiently detect CTCs in PCa patients with PSA levels of 4–10 ng mL⁻¹.

The anomalous size-dependent increase in capacitance in boron nitride–graphene nanocapacitors is a puzzle that has been initially attributed to the negative quantum capacitance exhibited by this particular materials system.

The substrate modified by GO could greatly improve water flux, whereas the GO-functionalized active layer is favorable for biofouling mitigation.

The oxygen reduction reaction (ORR) reactivity of various nitrogen-doped graphene configurations are probed in detail using density functional theory (DFT) calculations.

The entire morphological variation of CVD graphene during cooling and etching.

We prepared graphene paper (GP) using graphene sheets of different thickness. The fracture strength of the GP was assessed by uniaxial in-plane tensile tests using an in situ scanning electron microscope.

The oxygen content of graphene oxide (GO) is directly related to its physical and chemical properties, such as hydrophilicity, suspension stability, adsorption, and ion-sieving ability of GO membranes.

Graphene nanosheets were exfoliated from hydrodynamic cavitation performed inside a microchannel.

Structuring of graphene as graphene sponges in the submicrometric scale has been achieved by using silica spheres (80 nm diameter) as hard templates and chitosan or alginate as precursor of defective N-doped or undoped graphene, respectively.

We report on the time-dependent influence of atmospheric species on the electrical properties of functionalized graphene sheets (FGSs).

Nitrogen doping is an effective method for modulating the electronic states and properties of graphene. Pyridinic nitrogen enhances the reactivity with oxygen.

Carboxyl-terminated pyrrolidine functionalized graphene nanoplatelets through a solvent-free reaction.

Antibacterial potentials of four graphene based nanomaterials are tested on a wide range of bacteria.

Graphene quantum dot (GQDs) assemblies from a one-step microwave reaction as bifunctional materials in remediation of triazines.

Graphene assisted photoanodes are promising because of the high performance of the resulting dye sensitized solar cells (DSSCs).

Graphene protects nickel from severe oxidation and forms carbon-rich tribofilms containing disordered amorphous carbon and ordered polymers by tribo-chemical reactions.

GNP–SS functionalized Gum alloy exhibits superior bioactivity in inducing in vitro osteogenesis.

We report a scalable process of making highly conductive graphene-based glass fibre rovings and their integration into a vacuum infused epoxy–glass fabric composite. We then demonstrate the potential use of as prepared composites for de-icing applications.

Wettability of graphene is characterized from first principles.

Changed electrochemical activity and CO₂/H₂O adsorption by graphene inclusion in Cu₃(1,3,5-benzenetricarboxylate)₂ and covalent tethering to glassy carbon electrodes.

Hydrogenated multilayer graphene was prepared by a facile electrochemical cathodic method and its ferromagnetism was tuned through thermal annealing.

The chemical activity of graphene can be tuned by the transition metal substrate.

Adding GNPs into PTFE can significantly improve the thermal properties of nanocomposites.

Boron doped graphene for the oxidative dehydrogenation reactions.

One approach to improve Gr/Si SBSC performance is engineering the interface with an interfacial layer. We demonstrate the improved performance of Gr/Si SBSC upon engineering the interface with an aluminium oxide (Al₂O₃) layer grown by atomic layer deposition (ALD)..

Preparation process of Nafion/Fe₃O₄–SGO composite membranes.

In this study, composite nanosheets (ZIF-8@GO) were prepared via an in situ growth method and then incorporated into a polyimide (PI) matrix to fabricate mixed matrix membranes (MMMs) for CO₂ separation.

A simple and straightforward method using microwave-assisted reactions is presented for the functionalization of graphene oxide with aromatic and non-aromatic amines.

We demonstrate a general method for photochemically-induced covalent attachment of proteins to graphene through the introduction of a non-canonical amino acid p-azido-L-phenylalanine into defined residue positions.

The bending process of 2D materials, subject to an external force, is investigated, and applied to graphene, molybdenum disulphide (MoS₂), and imogolite.

Preparation of graphene oxide–gold (GO–Au) nanocomposites as adsorbents and catalysts for decontamination of water.

Functionalized graphene can successfully anchor sulfur compounds via moderate interactions, leading to improved conductivity and charge transfer in the cathode of Li–S batteries.

Based on the interaction between single-stranded probe DNA and graphene quantum dots (GQDs), we have designed a simple but smart electrochemical platform to detect HBV-DNA by using GQDs modified glassy carbon electrode coupled with probe DNA.

The current study aims at the development of an electrochemical sensor based on a silver nanoparticle–reduced graphene oxide–polyaniline (AgNPs–rGO–PANI) nanocomposite for the sensitive and selective detection of hydrogen peroxide (H₂O₂).

The quality of perovskite film has a great impact on its light absorption and carrier transport, which is vital to improve high-efficiency perovskite solar cells (PSCs).

Herein, we report the preparation of magnetic CoFe₂O₄ nanoparticles and CoFe₂O₄/graphene oxide (GO) hybrids and evaluate their catalytic activity as heterogeneous peroxymonosulfate (PMS) activators for the decomposition of rhodamine B.

The present study was focused on the development of environmentally friendly graphene-based anti-corrosive coatings and understanding the effect of these coatings on the electrochemical corrosion behavior of copper.

The first MIP sensor on an inkjet-printed graphene nanocomposite modified screen-printed carbon electrode was developed.

Our results imply the important potential of mir-247 in warning the formation of GO toxicity in the range of μg L⁻¹ in nematodes.

The present work describes the fabrication of Ni–graphene composite coatings on carbon steel at different deposition temperatures (15 °C, 30 °C, 45 °C and 60 °C, respectively) by an electrochemical codeposition method.

We report modification of graphene oxide by thermal reduction to obtain reduced graphene oxide and subsequent functionalization with sulfophenyl groups to obtain SRGO as well as the characterization of these materials by TGA-MS.

Three-dimensional reduced graphene oxide (3D-rGO) powders are synthesized and demonstrate remarkably enhanced microwave absorption in the S-band (2–4 GHz).

N, S co-doped commercial TiO₂/N, S-GQDs graphene quantum dots (NSTG) composites with band tunability are synthesized via a facile solvothermal treatment in the presence of thiourea, which acts as a precursor for the dopants.

GONR-filled H-t-PDMS nanocomposites were fabricated by using a facile solvent-free process, and the reinforcement efficiency of GONRs at low filler content is superior to those of the other carbon nano-fillers.

The Fe₃O₄ magnetic polypyrrole–graphene (PPy–GO) has a Langmuir adsorption capacities of 400.0 mg g⁻¹ for Hg(II). And it has a favorable saturation magnetization of 19.0 emu g⁻¹, easily separated from solutions via additional exterior magnets.

A novel GQD-complex was designed as a promising theranostic agent for the treatment of HER2-positive breast cancer.

Graphene-based two-dimensional materials have been explored in a variety of applications, including the treatment of heavy-metal-rich water/wastewater.

A one-step electrochemical co-deposition method was used to prepare a graphene/polyaniline composite on carbon cloth for high-performance flexible supercapacitors.

Cobalt selenide–graphene (CoSe–G) nanohybrid was successfully synthesised by a one-pot hydrothermal method and used as a positive electrode for asymmetric supercapacitor, which provides an energy density of 45.5 W h kg⁻¹ and a power density of 1.1 kW kg⁻¹.

Schematic representation of the preparation of PANI/Ag/GO-NCs and immobilization of lipase.

We report a facile and environmentally friendly protocol for the synthesis of novel mono-dispersed Cu and Ni bimetallic alloy particles supported on fibrous anime functionalized graphene oxide (GO).

Nanocomposites of MnS anchored on graphene, nitrogen-doped graphene and boron-doped graphene have been prepared by a simple wet chemical process.

Graphene oxide (GO) was incorporated into polyimide (PI) to fabricate GO/PI mixed matrix membranes (MMMs), which show a high water flux (36.1 kg m⁻² h⁻¹) and a high salt rejection (99.9%) for desalination of 3.5 wt% seawater at 90 °C.

A simple and sensitive electrochemical sensor for detection of dopamine has been developed based on ionic liquid functionalized graphene oxide supported gold nanoparticles (GO-IL-AuNPs) coated onto a glassy carbon electrode.

This paper explores the reduction of water dispersed graphene oxide (GO) by sunlight. The electronic and structural properties of the sunlight reduced GO are compared with that of GO reduced by conventional methods.

Mn₃O₄ incorporated graphenes synthesized by a deposition-solvothermal process were efficiently used for methylene blue degradation under visible illumination (88 W, λ > 420 nm) and under microwave irradiation (800 W, 2.45 GHz, 373 K).

A supercapacitor electrode material, rGO–Fe₂O₃ composite, prepared by a facile microwave assisted in situ technique, delivers a high specific capacitance of 577.5 F g⁻¹ at a current density of 2 A g⁻¹ with a long cycle life and high rate performance.