- Electrochemical sensors and biosensors
- Advanced Nanomaterials in Catalysis
- Nanoparticles: synthesis and applications
- Advanced biosensing and bioanalysis techniques
- Bacterial biofilms and quorum sensing
- Nanotechnology research and applications
- Corrosion Behavior and Inhibition
- Analytical Methods in Pharmaceuticals
- Surface Treatment and Coatings
- Molecular Sensors and Ion Detection
- Material Properties and Applications
- Adenosine and Purinergic Signaling
- Nanocluster Synthesis and Applications
- Analytical Chemistry and Sensors
- Gout, Hyperuricemia, Uric Acid
- Analytical Chemistry and Chromatography
- Metabolism and Genetic Disorders
Georgia Institute of Technology
2023-2025
University of Alberta
2020-2022
National Institute for Nanotechnology
2021-2022
National Research Council Canada
2021-2022
The development of simple, inexpensive, deployable clinical diagnostics could have a global impact on public health by making measurements patient status more widely accessible to patients regardless of...
We present a nanozyme-based biosensor fabricated from nanostructured Ni films deposited onto silicon wafer by glancing angle deposition (GLAD) for enzyme-free colorimetric monitoring of uric acid (UA), biomarker gout, high blood pressure, heart disease, and kidney disease. The helically structured GLAD nanozymes exhibit excellent peroxidase-like activity to accelerate the oxidation reaction colorless 3,3',5,5'-tetramethylbenzidine (TMB) blue product, oxidized TMB (oxTMB), mediated H2O2. In...
Abstract Bacterial adhesion to stainless steel, an alloy commonly used in shared settings, numerous medical devices, and food beverage sectors, can give rise serious infections, ultimately leading morbidity, mortality, significant healthcare expenses. In this study, Cu‐coated nanotextured steel (nSS) fabrication have been demonstrated using electrochemical technique its potential as antibiotic‐free biocidal surface against Gram‐positive negative bacteria. As nanotexture Cu combine for dual...
Nickel oxide (NiO) thin films prepared by glancing angle deposition (GLAD) were investigated as electrodes for enzymatic electrochemical quantification of xanthine, a noted indicator meat freshness. The large surface area the macroporous GLAD NiO provided suitable scaffold to successfully immobilize enzyme xanthine oxidase (XO), and this XO immobilization was characterized cyclic voltammetry, impedance spectroscopy, X-ray photoelectron spectroscopy. XO-modified electrochemically oxidize with...
Nitrogen-functionalization is an effective means of improving the catalytic performances nanozymes. In present work, plasma-assisted nitrogen modification nanocolumnar Ni GLAD films was performed using ammonia plasma, resulting in improvement peroxidase-like performance porous, nanostructured films. The plasma-treated nanozymes were characterized by TEM, SEM, XRD, and XPS, revealing a nitrogen-rich surface composition. Increased wettability observed after plasma treatment,...
The development of simple, inexpensive, deployable clinical diagnostics could have a global impact on public health by making measurements patient status more widely accessible to patients regardless socioeconomic status. Here, we report novel biosensor for sarcosine using colorimetric readout created hybrid catalyst system copper nanocubes and the enzyme oxidase. catalyzes reaction generate H2O2, which then use as substrate create free radicals that convert colorless...
Fungal adhesion to stainless steel, an alloy commonly used in food and beverage sectors, public healthcare settings, numerous medical devices, can give rise serious infections, ultimately leading morbidity, mortality, significant expenses. In this study, we demonstrate that nanotextured steel (nSS) fabricated using electrochemical technique is antibiotic-free biocidal surface against Candida Albicans Fusarium Oxysporum with 98% 97% reduction, respectively. The nanoprotrusion features on nSS...
Abstract Bacterial adhesion to stainless steel, an alloy commonly used in shared settings, numerous medical devices, and food beverage sectors, can give rise serious infections, ultimately leading morbidity, mortality, significant healthcare expenses. In this study, we have demonstrated Cu-coated nanotextured steel (nSS) fabrication using electrochemical technique its potential as antibiotic-free biocidal surface against Gram-positive negative bacteria. As nanotexture Cu combine for dual...