A5012896452- Insect and Pesticide Research
- Plant and animal studies
- Microfluidic and Capillary Electrophoresis Applications
- Pharmaceutical and Antibiotic Environmental Impacts
- Water Quality and Pollution Assessment
- Pesticide and Herbicide Environmental Studies
- Electrochemical Analysis and Applications
- Analytical Chemistry and Chromatography
- Pesticide Residue Analysis and Safety
- Analytical chemistry methods development
- Metal complexes synthesis and properties
- Conducting polymers and applications
- Advanced biosensing and bioanalysis techniques
- DNA and Nucleic Acid Chemistry
- Heavy metals in environment
- Soil and Water Nutrient Dynamics
- Environmental Toxicology and Ecotoxicology
- Soil Carbon and Nitrogen Dynamics
- Analytical Chemistry and Sensors
- DNA Repair Mechanisms
- Insect and Arachnid Ecology and Behavior
- Bee Products Chemical Analysis
- Insect Pest Control Strategies
- Toxic Organic Pollutants Impact
- Agricultural safety and regulations
Dublin City University
2015-2024
22q11 Ireland
2014-2021
The University of Texas at Austin
2006
UConn Health
2003-2004
University of Connecticut
2004
A rapid quantitative method for 135 contaminants of emerging concern (CECs) in untreated wastewater enabled with direct injection liquid chromatography-tandem mass spectrometry is presented. All compounds were analysed within 5 min on a short biphenyl cartridge using only 10 μL filtered sample per injection. Up to 76 monitored simultaneously during the gradient (including mostly two transitions compound and stable isotope-labelled analogues) while yielding >10 data points peak. Evaluation...
Despite being a developed country in the European Union (EU), knowledge of nature and extent contamination water bodies with contaminants emerging concern (CECs) Ireland is limited. In this study, >140 CECs including pharmaceuticals, pesticides personal care products were monitored monthly samples wastewater treatment plant (WWTP) influent, effluent receiving surface waters at both an urban rural location (72 total) over 12-month period 2018-2019. total, 58 detected, several EU Water...
Cultivation of mass flowering entomophilous crops benefits from the presence managed and wild pollinators, who visit flowers to forage on pollen nectar. However, management these typically includes application pesticides, which may pose a hazard for pollinators foraging in an agricultural environment. To determine levels potential exposure their concentration nectar need assessing, both within beyond target crop plants. We selected ten pesticide compounds one metabolite analysed occurrence...
Direct electrochemiluminescence (ECL) involving oxidized DNA was demonstrated in ultrathin films of cationic polymer [Os(bpy)2(PVP)10]2+ [PVP = poly(vinyl pyridine)] assembled layer-by-layer with or oligonucleotides. Electrochemically Os(II) sites generated ECL from containing oxo-guanines on formed by chemical oxidation using Fenton reagent. Films combining DNA, [Ru(bpy)2(PVP)10]2+, and had that produced specific for Ru(II) gave reaction oxo-adenines, chemically damaged possibly cleaved strands.
In an agricultural environment, where crops are treated with pesticides, bees likely to be exposed a range of chemical compounds in variety ways. The extent which different bee species affected by these chemicals, largely depends on the concentrations and type exposure. We quantified presence selected pesticide pollen two entomophilous crops; oilseed rape (Brassica napus) broad bean (Vicia faba). Sampling was performed 12 sites Ireland our results were compared loads honey bumble actively...
Honey is a honey-bee product obtained mainly by the enzymatic processing of nectar from variety plants, which leads to wide range colours and flavours available on market. These organoleptic nutritional features are influenced chemical composition, in turn depends botanical origin. Bioactive compounds account for honey beneficial activity medical applications, explains extensive use ethno-pharmacology since antiquity, cough remedies dermatological treatments. Wound healing one main...
Pesticide products containing glyphosate as a systemic active ingredient are some of the most extensively used herbicides worldwide. After spraying, residues have been found in nectar and pollen collected by bees foraging on treated plants. This dietary exposure to could pose hazard for flower-visiting animals including bees, delivery pollination services. Here, we evaluated whether contaminates targeted crops non-target wild Oilseed rape was selected focal crop species,
Abstract Herbicides are the most widely used pesticides globally. Although to control weeds, they may also pose a risk bee health. A key knowledge gap is how bees could be exposed herbicides in environment, including whether forage on treated plants before die. We choice test determine if bumblebees would with glyphosate at two time periods after treatment. determined and its degradation product aminomethylphosphonic acid were present as residues pollen collected by while foraging. Finally,...
Traditional soil phosphorus (P) sorption capacity is examined from a Langmuir isotherm batch technique, which time-consuming, labour intensive and generates chemical waste. In this work, we provide an efficient convenient technique with MIR spectroscopy to predict the parameter of P maximum (Smax, mg·kg
In this article, we report the findings of a comprehensive structure–activity relationship study N-(6-ferrocenyl-2-naphthoyl) dipeptide ethyl esters, in which novel analogues were designed, synthesized, and evaluated vitro for antiproliferative effect. Two new compounds, 2 16, showed potent nanomolar activity H1299 NSCLC cell line, with exceptional IC50 values 0.13 0.14 μM, respectively. These compounds also found to have significant Sk-Mel-28 malignant melanoma line (IC50 1.10 1.06...
This study investigates the relationships among Ni, Cd and Pb's different chemical forms determined by methodologies in coastal transitional waters across a broad geographical scale. Concentrations were measured spot samples through passive sampling (DGT). High variability of metal concentrations was found sites due to natural water fluctuations rather than given or method. Total dissolved lower EQS-WFD values. The labile fractions Pb, Anodic Stripping Voltammetry DGT-ICPMS, highly...
Agri-Environment Schemes (AES) have long been implemented across Europe to incentivise farmers alter their management practices improve biodiversity and water, air soil quality. However, the cost-effectiveness of traditional action-based schemes has questioned, Result-Based Payment (RBP) recommended as an alternative. To evaluate effectiveness actions, RBP approaches often rely on indicator species monitor changes in environmental conditions. The selection appropriate for follows several...
The current study evaluates the effect of seawater physico-chemical characteristics on relationship between concentration metals measured by Diffusive Gradients in Thin films (DGT) passive samplers (i.e., DGT-labile concentration) and concentrations discrete water samples. Accordingly, Inductively Coupled Plasma Mass Spectrometry (ICP-MS) was used to measure total dissolved metal samples labile obtained DGT samplers; additionally, lead cadmium conditional fractions were determined Anodic...
This protocol was developed based on the knowledge acquired in framework of Interreg MONITOOL project (EAPA_565/2016) where extensive sampling campaigns were performed transitional and coastal waters covering eight European countries. It provides detailed procedures guidelines for these waterbodies by concurrent collection discrete water samples deployment Diffusive Gradient Thin-films (DGT) passive samplers measurement trace metal concentrations. In order to facilitate application this...