A5054975806- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Biosensors and Analytical Detection
- Neuroscience and Neuropharmacology Research
- Lipid Membrane Structure and Behavior
- Receptor Mechanisms and Signaling
- Nicotinic Acetylcholine Receptors Study
- Advanced Nanomaterials in Catalysis
- Genetic Syndromes and Imprinting
- Nanopore and Nanochannel Transport Studies
- Neuroscience and Neural Engineering
- Molecular Sensors and Ion Detection
- Advanced Biosensing Techniques and Applications
- Epigenetics and DNA Methylation
- Photoreceptor and optogenetics research
- RNA modifications and cancer
- Mass Spectrometry Techniques and Applications
- Cellular transport and secretion
University of Gothenburg
2019-2020
Chalmers University of Technology
2017
Yazd University
2008-2015
Delft University of Technology
2015
Iuliu Hațieganu University of Medicine and Pharmacy
2013-2014
Abstract In this paper, two simple and sensitive approaches for CA 125 detection are presented by using antibody immobilized on poly‐anthranilic acid modified graphite screen‐printed electrodes. The first proposed approach is a label‐free impedimetric immunosensor. immunoassay based (PAA) electrodes with subsequent covalently monoclonal anti‐CA immobilization. used to capture the protein from sample solutions. A curve calibration electrochemical impedance spectroscopy (EIS) was obtained....
In the present paper, use of a carbon paste electrode modified by quinizarine (QZ) and TiO2 nanoparticles prepared simple rapid method was described. The heterogeneous electron-transfer properties coupled to at investigated using cyclic voltammetry chronoamperometry in aqueous buffer solutions. showed excellent character for electrocatalytic oxidization hydrazine (HZ). Differential pulse voltammetric peak currents HZ increased linearly with their concentrations range 0.5 µM 1900.0 detection...
The relationship between neuronal impulse activity and neurotransmitter release remains elusive. This issue is especially poorly understood in the neuroendocrine system, with its particular demands on periodically voluminous of neurohormones at interface axon terminals vasculature. A shortage techniques sufficient temporal resolution has hindered real-time monitoring secretion peptides that dominate among neurohormones. lactotropic axis provides an important exception neurochemical identity,...
A carbon-paste electrode (CPE) was chemically modified with TiO2 nanoparticles and quinizarine (QZ). This used as an electrochemical sensor for the determination of minor amounts hydroxylamine (HX). The showed very efficient electrocatalytic activity anodic oxidation hydroxylamine, owing to a substantial decrease in overpotentials. Under optimal conditions, linear range span HX concentration 1.0 μM 400.0 detection limit 0.173 at signal-to-noise ratio 3, using differential pulse voltammetry...
The electrocatalytic oxidation of hydroxylamine on glassy carbon electrode (GCE) in neutral media has been characterized using cyclic voltammetry, chronoamperometry and differential pulse voltammetry (DPV). GCE as an electrochemical sensor exhibited strongly catalytic activity toward the solution modifier indigocarmine. electron transfer coefficient (α) charge rate constant (k) for kinetic parameters were determined by voltammetry. diffusion was estimated chronoamperometry. Hydroxylamine can...
Electrochemical measurements of exocytosis combined with intracellular vesicle impact electrochemical cytometry have been used to evaluate the effect an anticancer drug, tamoxifen, on catecholamine release at single-cell level. Tamoxifen has for over 40 years treat estrogen receptor-positive breast cancers during both early stages disease and in adjuvant setting. causes memory cognitive dysfunction, but reasons impairment problems induced by this drug are not well-known. We show that through...
A chemically modified carbon paste electrode with 2,2′-[3,6-dioxa-1,8-octanediylbis(nitriloethylidyne)]-bis-hydroquinone (DOH) was employed to study the electrocatalytic oxidation of dopamine (DA) in buffer solution using cyclic voltammetry (CV), square wave (SWV) and chronoamperometry (CHA). The diffusion coefficient (D = 7.4 × 10−6 cm2 s−1), kinetic parameter such as electron transfer (α 0.33) DA at surface (DOHMCPE) determined electrochemical approaches. It has been found that under an...
We have designed and fabricated a microwell array chip (MWAC) to trap detect the entire content of individual vesicles after disruption vesicular membrane by an applied electrical potential. To understand mechanism vesicle impact electrochemical cytometry (VIEC) in microwells, we simulated rupture subsequent diffusion entrapped analytes. Two possibilities were tested: (i) opens toward electrode, (ii) away from electrode. These two different microwells with varied depth width. Experimental...
The study of the colligative properties adenosine 5′-triphosphate (ATP) and catecholamines has received attention scientists for decades, as they could explain capabilities secretory vesicles (SVs) to accumulate neurotransmitters. In this Article, we have applied electrochemical methods detect such interactions in vitro, at acidic pH SVs (pH 5.5) examined effect compounds having structural similarities that correlate with functional groups ATP (adenosine, phosphoric acid sodium phosphate...
A new electrochemical sandwich immunoassay for the ultrasensitive detection of human MUC1 cancer biomarker using protein G-functionalized magnetic beads (MBs) and graphite-based screen-printed electrodes (SPEs) was developed. Magnetic were employed as platforms immobilization immunoreaction process. pair primary secondary antibodies used to capture protein. After labeling with a third antibody conjugated horseradish peroxidase (HRP), resulting conjugate trapped at surface SPEs determination...
A novel voltammetric sensor for the determination of L-cysteine (L-Cys) was fabricated based on a TiO2 nanoparticles/bis [bis(salicylidene-1,4-phenylenediamine)-molybdenum(VI)] carbon paste electrode. The electrochemical behavior investigated in detail by cyclic voltammetry. apparent electron transfer rate constant (ks) and charge coefficient (?) nanoparticles / molybdenum(VI) complex/CPE were also determined voltammetry found to be about 4.53 s?1 0.54, respectively. displayed good...