- Plant Stress Responses and Tolerance
- Plant Micronutrient Interactions and Effects
- Heavy metals in environment
- Metallic Glasses and Amorphous Alloys
- Nanoporous metals and alloys
- Aluminum toxicity and tolerance in plants and animals
- Hydrogen Storage and Materials
- Ammonia Synthesis and Nitrogen Reduction
- Arsenic contamination and mitigation
- Electrocatalysts for Energy Conversion
- Selenium in Biological Systems
- Trace Elements in Health
- Heavy Metals in Plants
- Anodic Oxide Films and Nanostructures
- Quasicrystal Structures and Properties
- Hybrid Renewable Energy Systems
- Glass properties and applications
- Electrodeposition and Electroless Coatings
- Bee Products Chemical Analysis
- Phytochemical and Pharmacological Studies
- Metallurgical and Alloy Processes
- Phase-change materials and chalcogenides
- Plant responses to elevated CO2
- Constructed Wetlands for Wastewater Treatment
- Magnesium Alloys: Properties and Applications
Sofia University "St. Kliment Ohridski"
2004-2023
Institute of Plant Molecular Biology
2019
Czech Academy of Sciences, Biology Centre
2019
Czech Academy of Sciences
2019
Sabancı Üniversitesi
2018
Helmholtz Zentrum München
2009-2016
Amt für Umwelt
2015
In-Q-Tel
2012
Center for Environmental Health
2009-2010
Institute of Groundwater Ecology
2007
Solving the global environmental and agricultural problem of chronic low-level cadmium (Cd) exposure requires better mechanistic understanding. Here, soybean (Glycine max) plants were exposed to Cd concentrations ranging from 0.5 nM (background concentration, control) 3 µM. Plants cultivated hydroponically under non-nodulating conditions for 10 weeks. Toxicity symptoms, net photosynthetic oxygen production photosynthesis biophysics (chlorophyll fluorescence: Kautsky OJIP) measured in young...
Typha latifolia is a plant species widely used for phytoremediation. Accumulation, localization and distribution of Pb mineral nutrients were investigated in roots, rhizomes leaves grown at 0, 50, 100 250 μM concentrations pot experiment under controlled conditions. Bulk elemental determined by X-ray fluorescence (XRF) spectroscopy whereas micro-proton-induced emission (micro-PIXE) was element root rhizome tissues. Gradual increase bulk observed roots treated with increasing concentrations,...
This review presents existing results on the formation of porous metal structures by selective dissolution metallic glasses. The compositions initial amorphous alloys, conditions chemical and electrochemical dissolution, morphology microstructure resulting structures, their main applications are included discussed. examined have allowed to make some generalizations concerning influence precursor alloy composition, type concentration electrolytes, temperature, time phase shape size pores...
Techniques for metal speciation analysis with subnanomolar (ppt) detection limits in complex matrices, simultaneous quantification of matrix elements, have become a necessity investigating targets trace binding to macromolecules and pigments at environmentally relevant concentrations. In this work we optimized the such custom-built HPLC-ICP-MS system. Key elements optimization were choice components metal-free HPLC-DAD system sector-field ICP-MS (ICF-sfMS) desolvating injection sample...
Abstract A series of Zr-based glasses has been obtained by rapid melt quenching and their thermal characteristics ( T g , x l ) were determined DSC/DTA. Some the most recognized glass forming ability (GFA) criteria applied to predict alloys study its dependence on alloy composition. As a result, best compositions among studied could be selected. It was found that as general trend an increase Zr content results in Δ (= − decrease. The liquidus temperatures chosen with substantially different...
Abstract Interactions between heavy metals, glutathione, glutathione S-transferase (GST), and reductase (GR) are being investigated by many working groups, but evaluation of the direct effect Cd2+ on these enzymes in vitro is lacking. We report here cadmium (10, 50, 100, 250 μM CdSO4) partially purified from Calystegia sepium. Plants were grown under normal field conditions without metals extracted Tris buffer ammonium sulphate fractionation gel filtration. Glutathione activity was measured...
The research presented stemmed from the observations that female plants of annual dioecious Mercurialis annua outlive male plants. This led to hypothesis M. would be more tolerant stress than was addressed in a comprehensive way, by comparing morphological, biochemical and metabolomics changes during their development under salinity. There were practically no differences between genders vegetative physiological parameters. However, salinity conditions, produced significantly new reproductive...