Volker Nischwitz
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View article: Longitudinal multimodal monitoring of transplanted islet β-cells
Longitudinal multimodal monitoring of transplanted islet β-cells Open
For the quantification of β-cell function, Mn-based contrast mechanisms between native and transplanted islets differ and require further studies for optimal biological readout. However, non-invasive PET/MRI nonetheless provides the tools …
View article: Editorial: New analytical method developments for metallomics research
Editorial: New analytical method developments for metallomics research Open
EDITORIAL article Front. Chem., 08 November 2022Sec. Analytical Chemistry https://doi.org/10.3389/fchem.2022.1071474
View article: Process sequence of soil aggregate formation disentangled through multi-isotope labelling
Process sequence of soil aggregate formation disentangled through multi-isotope labelling Open
International audience
View article: Cascade Filtration With PCR Detection and Field-Flow-Fractionation Online With ICP-MS for the Characterization of DNA Interaction With Suspended Particulate Matter
Cascade Filtration With PCR Detection and Field-Flow-Fractionation Online With ICP-MS for the Characterization of DNA Interaction With Suspended Particulate Matter Open
The variety of applied antibiotics in animal and human medicine results in the release, development, and spread of relevant numbers of antibiotic resistance genes (ARGs) in the environment. The majority of ARGs are present in intracellular…
View article: Quantitative detection of α-Synuclein and Tau oligomers and other aggregates by digital single particle counting
Quantitative detection of α-Synuclein and Tau oligomers and other aggregates by digital single particle counting Open
View article: Origin of Steam Contaminants and Degradation of Solid-Oxide Electrolysis Stacks
Origin of Steam Contaminants and Degradation of Solid-Oxide Electrolysis Stacks Open
Two once-through steam generators and a combination of a steam generator and a gas preheater for supplying feed gases to solid-oxide electrolysis stacks were evaluated for their carryover characteristics of contaminants from the feed-water…
View article: Origin of Steam Contaminants and Degradation of Solid-Oxide Electrolysis Stacks
Origin of Steam Contaminants and Degradation of Solid-Oxide Electrolysis Stacks Open
Two once-through steam generators and a combination of a steam generator and a gas preheater for supplying feed gases to solid-oxide electrolysis stacks were evaluated for their carryover characteristics of contaminants from the feed-water…
View article: Process Sequence of Soil Aggregate Formation Disentangled Through Multi-Isotope Labelling
Process Sequence of Soil Aggregate Formation Disentangled Through Multi-Isotope Labelling Open
View article: Characterisation of temporal and regional differences in the elemental fractionation and mobility of urban particulate matter via online sequential extraction
Characterisation of temporal and regional differences in the elemental fractionation and mobility of urban particulate matter via online sequential extraction Open
Numerous diffuse sources contribute in addition to industrial plants to atmospheric particulate matter (PM) concentrations causing concern regarding potential health effects and environmental impacts. Routine monitoring focuses on PM mass …
View article: PET/MRI enables simultaneous <i>in vivo</i> quantification of β-cell mass and function
PET/MRI enables simultaneous <i>in vivo</i> quantification of β-cell mass and function Open
Non-invasive imaging of β-cells represents a desirable preclinical and clinical tool to monitor the change of β-cell mass and the loss of function during pre-diabetic stages. Although it is widely accepted that manganese (Mn) ions are acti…
View article: Application of FTIR and LA-ICPMS Spectroscopies as a Possible Approach for Biochemical Analyses of Different Rat Brain Regions
Application of FTIR and LA-ICPMS Spectroscopies as a Possible Approach for Biochemical Analyses of Different Rat Brain Regions Open
Fourier Transform Infrared Spectroscopy (FTIR) is a non-destructive analytical technique that has been employed in this research to characterize the biochemical make-up of various rat brain regions. The sensorimotor cortex, caudate putamen…
View article: Spectroscopic characterization of the Co-substituted C-terminal domain of rubredoxin-2
Spectroscopic characterization of the Co-substituted C-terminal domain of rubredoxin-2 Open
Pseudomonas putida rubredoxin-2 (Rxn2) is an essential member of the alkane hydroxylation pathway and transfers electrons from a reductase to the membrane-bound hydroxylase. The regioselective hydroxylation of linear alkanes is a challengi…
View article: Molecular composition of the human primary visual cortex profiled by multimodal mass spectrometry imaging
Molecular composition of the human primary visual cortex profiled by multimodal mass spectrometry imaging Open
View article: The leaching of natural colloids from forest surface soils and their role for the P transfer
The leaching of natural colloids from forest surface soils and their role for the P transfer Open
Soil nanoparticles (d<100nm) and colloids (d<1µm) exert a decisive control on the mobilisation of strongly sorbing compounds such as phosphorus (P). We investigated the nanoparticles and colloids present in forest soil leachates exam…
View article: Elemental Composition of Natural Nanoparticles and Fine Colloids in European Forest Stream Waters and Their Role as Phosphorus Carriers
Elemental Composition of Natural Nanoparticles and Fine Colloids in European Forest Stream Waters and Their Role as Phosphorus Carriers Open
Biogeochemical cycling of elements largely occurs in dissolved state, but many elements may also be bound to natural nanoparticles (NNP, 1–100 nm) and fine colloids (100–450 nm). We examined the hypothesis that the size and composition of …
View article: Histology and Gadolinium Distribution in the Rodent Brain After the Administration of Cumulative High Doses of Linear and Macrocyclic Gadolinium-Based Contrast Agents
Histology and Gadolinium Distribution in the Rodent Brain After the Administration of Cumulative High Doses of Linear and Macrocyclic Gadolinium-Based Contrast Agents Open
Objectives Retrospective studies in patients with primary brain tumors or other central nervous system pathologies as well as postmortem studies have suggested that gadolinium (Gd) deposition occurs in the dentate nucleus (DN) and globus p…
View article: Colloid-bound and dissolved phosphorus species in topsoil water extracts along a grassland transect from Cambisol to Stagnosol
Colloid-bound and dissolved phosphorus species in topsoil water extracts along a grassland transect from Cambisol to Stagnosol Open
Phosphorus (P) species in colloidal and dissolved soil fractions may have different distributions. To understand which P species are potentially involved, we obtained water extracts from the surface soils of a gradient from Cambisol, Stagn…
View article: Phosphorus Binding to Nanoparticles and Colloids in Forest Stream Waters
Phosphorus Binding to Nanoparticles and Colloids in Forest Stream Waters Open
Core Ideas There are three distinct fractions of natural nanoparticles and colloids. These unique fractions have different preferential P binding. The fractions include Fe–P, organic C–P, and clay–P. Field flow fractionation coupled online…
View article: Colloid-bound and dissolved phosphorus species in topsoil water extracts along a grassland
Colloid-bound and dissolved phosphorus species in topsoil water extracts along a grassland Open
Stagnant water conditions may release phosphorus (P) in soil solution that was formerly bound to Fe oxides. To understand which P species are potentially involved, we obtained water extracts from the surface soils of a gradient from Cambis…
View article: Field flow fractionation online with ICP-MS as novel approach for the quantification of fine particulate carbon in stream water samples and soil extracts
Field flow fractionation online with ICP-MS as novel approach for the quantification of fine particulate carbon in stream water samples and soil extracts Open
The capability of FFF online with ICP-MS detection was extended to the determination of particulate carbon via validation against FFF-OCD.