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From scrap metal to highly efficient electrodes: harnessing the nanotextured surface of swarf for effective utilisation of Pt and Co for hydrogen production (2024)
Journal Article

Hydrogen is considered to be the key element to achieving climate neutrality, leading to a massive demand for electrocatalysts. This work explores the transformation of metal waste into active and stable electrode materials for water splitting by mod... Read More about From scrap metal to highly efficient electrodes: harnessing the nanotextured surface of swarf for effective utilisation of Pt and Co for hydrogen production.

Synergy of nanocrystalline carbon nitride with Cu single atom catalyst leads to selective photocatalytic reduction of CO2 to methanol (2024)
Journal Article

Carbon nitride (C3N4) possesses both a band gap in the visible range and a low-lying conduction band potential, suitable for water splitting and CO2 reduction reactions (CO2RR). Yet, bulk C3N4 (b-C3N4) suffers from structural disorder leading to slug... Read More about Synergy of nanocrystalline carbon nitride with Cu single atom catalyst leads to selective photocatalytic reduction of CO2 to methanol.

Direct Deposition of Copper Atoms onto Graphitic Step Edges Lowers Overpotential and Improves Selectivity of Electrocatalytic CO2 Reduction (2024)
Working Paper

Minimizing our reliance on bulk precious metals is to increase the fraction of surface atoms and improve the metal-support interface. In this work, we employ a solvent/ligand/counterion-free method to deposit copper in the atomic form directly onto a... Read More about Direct Deposition of Copper Atoms onto Graphitic Step Edges Lowers Overpotential and Improves Selectivity of Electrocatalytic CO2 Reduction.

Author Correction: Single-atom Cu anchored catalysts for photocatalytic renewable H2 production with a quantum efficiency of 56% (2022)
Journal Article

Correction to: Nature Communications https://doi.org/10.1038/s41467-021-27698-3, published online 10 January 2022. In Supplementary Fig. 28b in the Supplementary PDF for this article, the figure panel incorrectly read ‘345 mW/cm2’ but should have... Read More about Author Correction: Single-atom Cu anchored catalysts for photocatalytic renewable H2 production with a quantum efficiency of 56%.

Single-atom Cu anchored catalysts for photocatalytic renewable H2 production with a quantum efficiency of 56% (2022)
Journal Article

Single-atom catalysts anchoring offers a desirable pathway for efficiency maximization and cost-saving for photocatalytic hydrogen evolution. However, the single-atoms loading amount is always within 0.5% in most of the reported due to the agglomerat... Read More about Single-atom Cu anchored catalysts for photocatalytic renewable H2 production with a quantum efficiency of 56%.

Energy Platform for Directed Charge Transfer in the Cascade Z-Scheme Heterojunction: CO2 Photoreduction without a Cocatalyst (2021)
Journal Article

A universal strategy is developed to construct a cascade Z-Scheme system, in which an effective energy platform is the core to direct charge transfer and separation, blocking the unexpected type-II charge transfer pathway. The dimension-matched (001)... Read More about Energy Platform for Directed Charge Transfer in the Cascade Z-Scheme Heterojunction: CO2 Photoreduction without a Cocatalyst.

Graphene- and Graphene Oxide-Based Nanocomposite Platforms for Electrochemical Biosensing Applications (2019)
Journal Article

Graphene and its derivatives such as graphene oxide (GO) and reduced GO (rGO) offer excellent electrical, mechanical and electrochemical properties. Further, due to the presence of high surface area, and a rich oxygen and defect framework, they are a... Read More about Graphene- and Graphene Oxide-Based Nanocomposite Platforms for Electrochemical Biosensing Applications.

Electrochemical Sensor for Bilirubin Detection Using Screen Printed Electrodes Functionalized with Carbon Nanotubes and Graphene (2018)
Journal Article

Practice oriented point-of-care diagnostics require easy-to-handle, miniaturized, and low-cost analytical tools. In a novel approach, screen printed carbon electrodes (SPEs), which were functionalized with nanomaterials, are employed for selective me... Read More about Electrochemical Sensor for Bilirubin Detection Using Screen Printed Electrodes Functionalized with Carbon Nanotubes and Graphene.

A Volume Miniaturized Hydrogen Peroxide Sensor Based on Peroxidase Activity of Copper(II) Chlorophyllin on Zinc Oxide and Polypyrrole Nanocomposite (2016)
Journal Article

Measurement of hydrogen peroxide (H2O2) is essential in human physiology and pathology as it provides valuable information with regard to signaling and prognostic of various diseases viz. oxidative stress and cardiovascular diseases. Therefore, we de... Read More about A Volume Miniaturized Hydrogen Peroxide Sensor Based on Peroxidase Activity of Copper(II) Chlorophyllin on Zinc Oxide and Polypyrrole Nanocomposite.

Enzymatic Biosensors (2015)
Book Chapter

This chapter presents the definition and brief history of enzymatic biosensors and biomarkers, their types, and measurement for diagnosis of diseases. The glucose biosensors including noninvasive and implantable sensors for diabetes; cholesterol bios... Read More about Enzymatic Biosensors.

A miniaturized electrochemical assay for homocysteine using screen-printed electrodes with cytochrome c anchored gold nanoparticles (2015)
Journal Article

Determination of homocysteine (HcySH) is highly beneficial in human physiology and pathophysiology for diagnosis and prognosis of cardiovascular diseases (CVD). Unfortunately, the practicability of the existing methodologies for the determination of... Read More about A miniaturized electrochemical assay for homocysteine using screen-printed electrodes with cytochrome c anchored gold nanoparticles.