A5038131932- Electrochemical sensors and biosensors
- Biosensors and Analytical Detection
- Advanced biosensing and bioanalysis techniques
- Electrochemical Analysis and Applications
- Analytical Chemistry and Sensors
- Advanced Biosensing Techniques and Applications
- Advanced Chemical Sensor Technologies
- SARS-CoV-2 detection and testing
- Polyamine Metabolism and Applications
- Food Allergy and Anaphylaxis Research
- Analytical chemistry methods development
- S100 Proteins and Annexins
- Alzheimer's disease research and treatments
- Tea Polyphenols and Effects
- Intracerebral and Subarachnoid Hemorrhage Research
- Conducting polymers and applications
- Pharmaceutical and Antibiotic Environmental Impacts
- Dialysis and Renal Disease Management
- Water Quality Monitoring and Analysis
- bioluminescence and chemiluminescence research
- Asthma and respiratory diseases
- Chronic Kidney Disease and Diabetes
- Acute Ischemic Stroke Management
- Advanced Nanomaterials in Catalysis
- Electrodeposition and Electroless Coatings
Universidad de Oviedo
2015-2025
Rede de Química e Tecnologia
2017-2020
Polytechnic Institute of Porto
2017-2020
Instituto Superior de Engenharia do Porto
2019
Abstract Electrochemical immunosensors (EIs) for the determination of disease biomarkers has attracted a wide interest due to its high sensitivity, low cost, and possible integration in compact analytical devices. The use screen‐printed electrodes (SPEs) develop EIs contributes great potential they have point care (POC) test, since SPEs show good electrical properties allow reduction electrochemical instrumentation down small pocket‐size Moreover, during last years, gone through significant...
A lab appropriate to introduce voltammetric techniques and basic electrochemical parameters is described in this work. It suitable study theoretical concepts of electrochemistry an applied way for analytical undergraduate courses. Two electroactive species, hexaammineruthenium dopamine, are used as simple redox systems. Screen-printed electrodes order allow the students focus on avoid tedious instrumentation preparation. The determination species studied with sensitive such...
A simple sensor combining screen-printed carbon electrodes and diamine oxidase is developed for histamine detection.
Abstract The escalating global prevalence of allergies presents a substantial public health challenge. Immunoglobulin E (IgE) serves as key biomarker for allergic diseases, often measured in blood serum by ELISA immunoassays. Despite recent interest minimally invasive sampling biological fluids, the low sample volumes and IgE concentrations demand highly sensitive methodologies, typically confined to centralized laboratories. In this article, decentralizable approach based on competitive...
Regulations of the EU obliges indication presence allergens on food labels. This work reports development an electrochemical immunosensor to determine tropomyosin (TPM) - a major shellfish allergen prevailing in muscles crustacean species. Two linear ranges between signal and TPM concentration were obtained: 2.5 20 ng mL-1 30 200 mL-1, with lowest limit detection 0.47 mL-1. The selectivity optimized immunoassay, tested other (e.g., Cyp c 1, fish allergen), assures effective TPM, enabling...
Abstract Histamine is an important biogenic amine because of its role in immune responses and the regulation physiological functions. It also used as a food freshness indicator, so maximum concentration fish legally regulated. Although several robust sensitive methods for histamine detection are already available, it continues to be challenge develop simple portable devices that allow rapid screening at any point production chain. Thus, this work, simple, miniaturized low-cost sensor...
The availability of more efficient analytical methods that answer the world's demands is a challenge and their development continues to be difficult task. In this work construction an electrochemical cell, based on low-cost accessible materials, can easily constructed used for electroanalytical purposes, described. Pencil leads were as electrodes transparency sheet base. This cell was transducer developing amperometric biosensor quantification histamine, which only biogenic amine regulated...
In this work, selective electrodeposition of silver on quantum dots is described. The particular characteristics the nanostructured thus obtained are studied by electrochemical and microscopic techniques. On one hand, were found to catalyze electrodeposition, other a strong adsorption between electrodeposited was observed, indicated two stripping processes. Nucleation nanoparticles followed different mechanisms depending surface (carbon or dots). Voltammetric confocal microscopy studies...