0000000000807839

AUTHOR

Kristina Wichmann

showing 2 related works from this author

Synthesis of Mesoporous Supraparticles on Superamphiphobic Surfaces

2015

A method for mesoporous supraparticle synthesis on superamphiphobic surfaces is designed. Therefore, supraparticles assembled with nanoparticles are synthesized by the evaporation of nanoparticle dispersion drops on the superamphiphobic surface. For synthesis, no further purification is required and no organic solvents are wasted. Moreover, by changing the conditions such as drop size and concentration, supraparticles of different sizes, compositions, and architectures are fabricated.

TitaniumMaterials scienceDrop sizeSurface PropertiesMechanical EngineeringMetal NanoparticlesTin CompoundsWaterNanoparticlechemistry.chemical_elementNanoparticle dispersionEvaporation (deposition)Chemical engineeringchemistryMechanics of MaterialsMicroscopy Electron ScanningGeneral Materials SciencePorosityMesoporous materialMetal nanoparticlesHydrophobic and Hydrophilic InteractionsPorosityTitanium
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Application of stable isotopes and AF4/ICP-SFMS for simultaneous tracing and quantification of iron oxide nanoparticles in a sediment–slurry matrix

2016

One major challenge in nanomaterial analysis, especially in complex environmental matrices, is the unambiguous differentiation between natural and engineered nanomaterials (ENMs). Particularly with regard to the investigation of ENM's/engineered nanoparticle's (ENPs) fate, analytical methods are needed allowing for tracing and sensitive quantification. Several ENPs are metal-based and contain elements being omnipresent in environmental matrices (e.g., Al, Ti, Zn, Fe and non-metal Si) – hence, high background levels of these elements are expected, compromising sensitive detection. In this work we developed successfully a combined approach of stable isotope labeling (tracing) and reverse post…

Detection limitStable isotope ratioElution010401 analytical chemistryRadiochemistryAnalytical chemistry010501 environmental sciencesIsotope dilution01 natural sciencesSilver nanoparticle0104 chemical sciencesAnalytical Chemistrychemistry.chemical_compoundColloidchemistryInductively coupled plasma mass spectrometrySpectroscopyIron oxide nanoparticles0105 earth and related environmental sciencesJournal of Analytical Atomic Spectrometry
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