A5019053638- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Advanced biosensing and bioanalysis techniques
- Biosensors and Analytical Detection
- Advanced Chemical Sensor Technologies
- Gas Sensing Nanomaterials and Sensors
- Neuroscience and Neuropharmacology Research
- TiO2 Photocatalysis and Solar Cells
- Marine Biology and Environmental Chemistry
- Surfactants and Colloidal Systems
- Forensic Fingerprint Detection Methods
- Bacterial biofilms and quorum sensing
- Chemical Synthesis and Characterization
- Neurotransmitter Receptor Influence on Behavior
- Molecular Sensors and Ion Detection
- Spectroscopy Techniques in Biomedical and Chemical Research
- Neuroscience and Neural Engineering
- Nanocomposite Films for Food Packaging
- Innovative Microfluidic and Catalytic Techniques Innovation
- 3D Printing in Biomedical Research
- Advanced Biosensing Techniques and Applications
- Analytical Methods in Pharmaceuticals
- Mesoporous Materials and Catalysis
Dublin City University
2018-2024
22q11 Ireland
2019-2021
Universidade Estadual Paulista (Unesp)
2012-2019
Manchester Metropolitan University
2015-2016
Division of Chemistry
2015
Departamento de Ciência e Tecnologia
2012
The use of mechanical activation (polishing) as a pre-treatment for screen-printed electrodes (SPEs) is reported and shown to give rise an improved electroanalytical response.
For the first time MDMA and PMA are simultaneously detected using electrochemical techniques.
We demonstrate, for the first time, that electroanalytical quantification of pindolol is actually possible using bare (unmodified) screen-printed graphite electrodes (SPEs).
We report a combination of HPLC and electrochemistry towards the detection heroin, fentanyl ten fentalogues.
The properties of carbon nano-onions (CNOs) make them attractive electrode materials/additives for the development low-cost, simple to use and highly sensitive Screen Printed Electrodes (SPEs). Here, we report first CNO-based ink fabrication low-cost disposable electrodes, leading high-performance sensors. Achieving a true dispersion CNOs is intrinsically challenging key aspect formulation. screen-printing formulation achieved by carefully selecting optimising conductive materials (graphite...
For the first time a novel indirect, independently validated, electrochemical protocol for sensing of MPA and 2-AI (“<italic>Synthacaine</italic>”) is reported.
In this paper the effect of solvent induced chemical surface enhancements upon graphitic screen-printed electrodes (SPEs) is explored. Previous literature has indicated that treating working electrode a SPE with N,N-dimethylformamide (DMF) offers improvements within electroanalytical response, resulting in 57-fold increment area compared to their unmodified counterparts. The protocol involves two steps: (i) placed into DMF for selected time, and (ii) it cured an oven at time temperature....
Wireless electrochemiluminescence is generated from functionalised gold microparticles using interdigitated, 3D printed, titanium arrays as feeder electrodes. Active transport and intense electric fields leads to bright electrochemiluminescence.
This paper describes the preparation, characterization and electroanalytical application of a composite consisting titanium phosphate modified with nickel hexacyanoferrate. Titanium (TiPh) was formed from reaction isopropoxide H3PO4 deionized water. Next, TiPh performed metal ion (Ni+2) potassium Hexacyanoferrate, designated as TiPhNIHCF. Spectroscopic techniques such vibrational spectroscopy, X-ray diffraction (XRD), diffuse reflectance cyclic voltammetry were used to characterize...
Titanium (IV) Phosphate (TiPh) composite was prepared using a easily methodology of the synthesis. As second step, TiPh reacted with Cobalte (TiPhCo) and subsequent hexacyanoferrate added (TiPhCoHCF). A preliminary characterization precursor resulting materials carried out spectroscopic voltammetric techniques. The electrochemical behaviour (TiPhCoHCF) verified by means graphite paste electrode cyclic voltammetry in potential range -0.2 to 1.0 V (vs Ag/AgCl). voltammogram modified containing...
An impedance-based biosensor for the ultrasensitive, selective, and label-free detection of a blood miRNA associated to Alzheimer disease (AD), miRNA-206, was developed. The principle grounded in changes charge transfer resistance (RCT) as an effect intramolecular forces between miRNAs ferro/ferricyanide well-structured transducer platform. A compact well-ordered mixed monolayer made co-immobilized capture 6-mercapto-1-hexanol (MCH) 1:4 M ratio (at 37 °C), uplifted performance sensor through...
In this work, a novel Titanium (IV) Phosphate (TiPh) composite was prepared using easily methodology of the synthesis. A preliminary characterization precursor and resulting materials defined spectroscopic voltammetric techniques. As second step, TiPh reacted with silver ions (TiPhAg) subsequent hexacyanoferrate added (TiPhAgHCF). The electrochemical behaviour (TiPhAgHCF) verified by means graphite paste electrode cyclic voltammetry in potential range 0.2 to 0.9 V (vs Ag/AgCl). voltammogram...
The fabrication and electrochemical properties of a 3D printed titanium electrode array are described. comprises 25 round cylinders (0.015 cm radius, 0.3 high) that evenly separated on 0.48 × square porous base (total geometric area 1.32 2 ). electrochemically active surface consists fused particles exhibits large roughness factor ≈17. In acidic, oxygenated solution, the available potential window is from ~-0.3 to +1.2 V. voltammetric response ferrocyanide quasi-reversible arising slow...
3D arrays comprising interconnected voids have been created using nanosphere lithography (2000≤diameter≤240 nm) followed by electrodeposition of gold. The top surface was blocked with 11-mercaptoundecanoic acid and then the templating polystyrenes were dissolved THF. interior surfaces functionalized DNA capture strands that are complementary for part a target sequence associated methicillin-resistant Staphylococcus aureus, MRSA, genomic DNA. Once is hybridised, probe functionalised [Ru(bpy)2...
Poly(propylene)imine hexadecylamine dendrimer (DAB-Am-16) was anchored on the surface of 3-chloropropylsilyl silica gel and subsequently interacted with copper nitroprusside. The composite characterized by infrared (FTIR), energy dispersive X-ray (EDX), cyclic voltammetry. above techniques confirmed successful anchoring modified its interaction voltammogram CuNPSD found to exhibit two redox couples ( E θ ′ ) 1 = 0.30 V 2 0.78 versus Ag/AgCl mol L −1 ; mV s attributed processes ,...
Greener alternatives for high demand materials is becoming increasingly necessary. Conductive screen printable ink formulations are vital components of sensors, e.g., glucose monitoring in diabetics, and electronics. Here, the formulation a reliable, low-cost, high-performance greener alternative an Ag/AgCl screen-printable reported. The has significantly lower silver nanoparticle loading, 25 %, based on nontoxic organic solvent uses biodegradable polymeric mixture polyhydroxyether/polyether...