Scientific Publications

Highlights Development of a promising antibody-based Gii-Sens biosensor for the sensitive and selective detection of Tau-441 protein, an Alzheimer’s Disease biomarker.  Detection levels down to the femtomolar (0.14 fM) and linear range of 1 fM to 10 nM.  The simple, ultrasensitive electrochemical immunosensor presented in the publications show great potential in paving the way for […]

Highlights TENG powered by Gii added potential for energy harvesting from footsteps (around 60 μW per footstep). This opens the potential for a sustainable, low-maintenance management system. Both mats exhibit mechanical robustness throughout the fatigue tests, with values recorded remaining within ±2 % of initial values to the end. Abstract Real-time occupancy data enable smart-building […]

Highlights The work demonstrated a promising alternative for non-enzymatic and real-time monitoring with an electrochemical glucose detection method with Gii functionalised with gold nanoparticles that offers improved sensitivity and lower limits of detection. Sensitive and reliable detection range from 5mM to 25mM.  With further optimisation and development of the system, the advancements made with Gii […]

Highlights Observation of strongly enhanced capacitance (quantum capacitance) when adsorbing 1-pyrene-methylamine to graphene foam. Proton activity specific sensor response in both aqueous buffer media and in human serum. Electrochemical impedance-based capacitance sensing with future opportunity to employ wireless capacitance readout. Abstract The interfacial capacitance of graphene foam electrodes (Gii-Sens) in contact to aqueous media (determined […]

Highlights An aptamer-based sensor was developed for the detection of ciprofloxacin, the active pharmaceutical ingredient of the antibiotic, with a cost-efficient, faster and better electrochemical test based on Gii. Low limits of detection were recorded down to 3nM, with a dynamic range of 10nM to 100nM. This development has shown great potential for use in […]

Highlights Small amounts of water can considerably alter reactivity at graphene foam electrode | ionic liquid interfaces Redox probes such as FeCp2+/0 or Fe3+/2+ in BMIM+BF4– are affected by humidity increasing diffusion rates. However, on graphene foam electrode surfaces with approx. 40 μm depth, both types of redox probes show voltammetric features associated with diffusional trapping within […]

Highlights This work presents the electrosynthesis of a photoactive TiO2 pohase on Gii without the need for thermal annealing. Approximately 2.1x the value for traditional carbon-based printed electrodes was achieved by using Gii instead of a carbon-based electrode. Abstract We discuss the photoelectroanalytical performance of a brookite-phase titanium dioxide (TiO2) platform electrodeposited onto graphene foam […]

Highlights Electrodeposition of iron oxyhydroxide (FeOOH) onto carbon substrates based on acetate precursors was demonstrated. This Gii electrode outperformed the more established iron chloride deposition. Cycling stability of the fuel cell is reasonable at 70% retention at 5000 cycles. Abstract Electrochemical capacitors based on redox active materials can achieve greater capacitance values than traditional electric […]

Highlights Gii has high detectivity, low-cost and mass-producibility properties that could improve broadband photodetectors. Gii outperforms existing materials in terms of detection performance, while also being a low-cost, sustainable, supply-secure and commercially scalable material. Gii-powered broadband photodetectors could eliminate the cost of and space for using multiple sensing materials and ultimately offer faster fibre optic […]