- Heavy metals in environment
- Electrochemical Analysis and Applications
- Atmospheric chemistry and aerosols
- Analytical Chemistry and Chromatography
- Plant and animal studies
- Membrane-based Ion Separation Techniques
- Chemical Synthesis and Characterization
- Hydrology and Drought Analysis
- Advanced Chemical Sensor Technologies
- Metal Extraction and Bioleaching
- Air Quality and Health Impacts
- Chemical and Physical Properties in Aqueous Solutions
- Advanced Proteomics Techniques and Applications
- Anaerobic Digestion and Biogas Production
- Coal Properties and Utilization
- Petroleum Processing and Analysis
- Marine and coastal ecosystems
- Marine Bivalve and Aquaculture Studies
- Lignin and Wood Chemistry
- Environmental Chemistry and Analysis
- Geochemistry and Elemental Analysis
- Adsorption and biosorption for pollutant removal
- Analytical Chemistry and Sensors
- Microbial Metabolic Engineering and Bioproduction
- Heavy Metals in Plants
Idaho National Laboratory
2017
University of Utah
2017
Forschungszentrum Jülich
1986-2007
Institute of Physical Chemistry
1979-1990
A bioleaching process to extract rare-earth elements (REE) from fluidized catalytic cracking (FCC) catalysts was optimized using a heterotrophic bacterium Gluconobacter oxydans produce organic acids glucose. Parameters included agitation intensity, oxygen levels, glucose concentrations, and nutrient additions. Biolixiviants the batch demonstrated REE leaching efficiencies up 56%. continuous bioreactor system subsequently developed feed leach of 51%. techno-economic analysis showed be single...
We present a high-resolution reference map for soluble proteins obtained from Corynebacterium glutamicum cells grown in glucose minimal medium. The analysis window covers the pl range 4-6 and molecular mass 5-100 kDa. Using overlapping narrow immobilized pH gradients isoelectric focusing, 970 protein spots were detected after second-dimensional separation on SDS-polyacrylamide gels colloidal Coomassie-staining. By tryptic peptide fingerprinting 169 identified, representing 152 different...
Formation of channel‐like pores in a plant membrane was induced within seconds after application an aqueous solution containing regurgitant the insect larvae Spodoptera littoralis . Gated pore currents recorded on tonoplast Charophyte Chara corallina displayed conductances up to several hundred pS. A voltage‐dependent gating reaction supports assumption that pore‐forming molecules have amphipathic properties. Regurgitant samples separated into masses smaller or larger than 3 kDa were...
Abstract A simple and reliable procedure simultaneously to determine seven trace and/or ultratrace toxic metals in a single sample of environmental plants has been presented. The is based on the simultaneous determination Cu, Pb Cd by differential pulse anodic stripping voltammetry, Zn Mn voltammetry Ni Co adsorption at hanging mercury drop electrode. details sampling, washing drying samples approach digestion preparation for voltammetric have investigated. method applied grass hucerne from...