A5015617548- Analytical chemistry methods development
- Pesticide Residue Analysis and Safety
- Pharmaceutical and Antibiotic Environmental Impacts
- Mycotoxins in Agriculture and Food
- Analytical Chemistry and Chromatography
- Seaweed-derived Bioactive Compounds
- Protein Hydrolysis and Bioactive Peptides
- Traumatic Brain Injury and Neurovascular Disturbances
- Advanced Chemical Sensor Technologies
- Poisoning and overdose treatments
- Phytochemicals and Antioxidant Activities
- Dye analysis and toxicity
- Pesticide and Herbicide Environmental Studies
- Pharmacological Effects and Assays
- Respiratory Support and Mechanisms
- Echinoderm biology and ecology
- Fungal Plant Pathogen Control
- Water Treatment and Disinfection
- Wastewater Treatment and Reuse
- Pharmaceutical Quality and Counterfeiting
- Advanced Photocatalysis Techniques
- Sinusitis and nasal conditions
- Nosocomial Infections in ICU
- Wheat and Barley Genetics and Pathology
- Sepsis Diagnosis and Treatment
Polytechnic Institute of Porto
2015-2024
Rede de Química e Tecnologia
2014-2024
Instituto Superior de Engenharia do Porto
2008-2022
Hospital de Santa Maria
1997-2013
Centro Hospitalar Lisboa Norte
2013
Universidade do Porto
2000-2001
Pharmaceuticals in the environment are a global concern, with studies all continents highlighting their widespread occurrence and potential ecological impacts, revealing presence, fate, associated risks aquatic ecosystems. Despite typically occurring at low concentrations (ranging from ng/L to µg/L), advancements analytical methods more sensitive equipment have enabled detection of higher number pharmaceuticals. In this study, surface wastewater samples were extracted using solid phase...
The three-dimensional (3D) electrochemical treatment process was studied for the removal of two pharmaceuticals, diclofenac (anti-inflammatory) and sulfamethoxazole (antibiotic), in mono bi-component systems. Adsorption conventional two-dimensional processes were initially then combined to develop 3D process. influence different operating parameters on efficiency studied: distance between cathode anode, pharmaceutical electrolyte (NaCl) concentrations, pH, (carbon-based) adsorbent used as...
Abstract The Quinone outside Inhibitors (QoI) are one of the most important and recent fungicide groups used in viticulture also allowed by Integrated Pest Management. Azoxystrobin, kresoxim-methyl trifloxystrobin main active ingredients for treating downy powdery mildews that can be present grapes wines. In this paper, a method is reported analysis these three QoI-fungicides wine. After liquid–liquid extraction clean-up on commercial silica cartridges, was isocratic HPLC with diode array...
The present work describes a solid-phase microextraction (SPME) gas chromatography-tandem mass spectrometry (MS/MS) method to quantify 24 pesticides in fortified white wine and red wine. In this study "fortified wine" refers which fermentation is arrested before completion by alcohol distillate addition, allowing sugar alcoholic contents be higher (around 80-100 g/L total sugars 19-22% strength (v/v)). analytical showed good linearity, presenting correlation coefficients (R(2)) ≥ 0.989 for...
Pilocarpus microphyllus Stapf ex Wardlew (Rutaceae), popularly known as jaborandi, is a plant native to the northern and northeastern macroregions of Brazil. Several alkaloids from this species have been isolated. There are few reports antibacterial anthelmintic activities for these compounds. In work, we report activity five found in P. leaves, namely, pilosine, epiisopilosine, isopilosine, epiisopiloturine macaubine. Of these, only one compounds has previously reported. Nuclear magnetic...
Methadone is used in the treatment of opioid addiction. Acute intoxication can lead to severe consequences and even be lethal. In several case reports small series, a presumably toxic leukoencephalopathy described resulting from inhalation heroin. We present 3-year-old boy who ingested methadone accidentally. coma with acute obstructive hydrocephalus owing massive cerebellar edema supratentorial lesions, he was successfully treated methylprednisolone cerebrospinal fluid external drainage. To...
The total lipid content and lipidic profile of seaweeds harvested in the North Coast purchased Portugal were determined this paper. amount lipids different species varied between 0.7 ± 0.1% (Chondrus crispus) 3.8 0.6% (Ulva spp.). Regarding fatty acid content, polyunsaturated acids (PUFA) ranged 0–35%, with Ulva spp. presenting highest amount; monounsaturated (MUFA) 19 67%; saturated (SFA) predominant C. crispus (45–78%) Gracilaria (36–79%). Concerning nutritional indices, atherogenicity...
Different extraction techniques were used to exploit fruit processing residues for their use as a source of phenolic compounds. Three different methods, namely microwave-assisted (MAE), subcritical water (SWE), and maceration (M), assessed gauge respective efficacies. Total content (TPC) total flavonoid (TFC), ferric reducing antioxidant power (FRAP), radical scavenging activity ABTS assay evaluated. High-performance liquid chromatography was assess the polyphenolic profile. MAE technique...
In response to the exponential growth in world population, there has been a striking surge volume of discarded fish worldwide. This is particularly evident processing industry, where substantial amount waste generated, posing significant environmental concerns. Consequently, repurposing and utilisation these materials have emerged as pivotal processes for preservation marine resources. By employing innovative strategies, valuable products can be extracted from by-products, offering not only...
The scientific community is increasingly concerned about the presence of pharmaceuticals in aquatic environment, which a consequence their high consumption and inefficient removal by wastewater-treatment plants. search for an effective sustainable tertiary treatment therefore needed to enhance removal. For this purpose, combination electrochemical adsorption processes into three-dimensional (3D) systems has been proposed. In study, 3D system was studied remove carbamazepine, antiepileptic,...
Abstract An analytical multiresidue method for the simultaneous determination of seven pesticides in fresh vegetable samples, namely, courgette (Cucurbita pepo), cucumber (Cucumis sativus), lettuce (Lactuca sativa, Romaine and Iceberg varieties) peppers (Capsicum sp.) is described. The procedure, based on microwave-assisted extraction (MAE) analysis by liquid chromatography–photodiode array (LC–PDA) detection was applied to four carbamates (carbofuran, carbaryl, chlorpropham EPTC) three urea...