A5027911358- Zeolite Catalysis and Synthesis
- Hydrocarbon exploration and reservoir analysis
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced NMR Techniques and Applications
- Catalysis and Oxidation Reactions
- Mesoporous Materials and Catalysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Biosensors and Analytical Detection
- Molecular Biology Techniques and Applications
- Catalysis and Hydrodesulfurization Studies
- Optical Imaging and Spectroscopy Techniques
- Medical Imaging and Pathology Studies
- Spectroscopy and Chemometric Analyses
- Photoacoustic and Ultrasonic Imaging
Utrecht University
2013-2016
Cancer Genomics Centre
2016
Gloucestershire Hospitals NHS Foundation Trust
2011
Gloucestershire Royal Hospital
2010
Vrije Universiteit Amsterdam
2009
SESORS - Surface enhanced spatially offset Raman spectroscopy–imaging is explored for the first time in this study. Multiplexed surface scattering (SERS) signals have been recovered non-invasively from a depth of 20 mm tissues and reconstructed to produce false colour image. Four unique 'flavours' SERS nanoparticles (NPs) were injected into × 50 porcine tissue block at corners 10 square. A transmission data cube was acquired over an 11 pixel grid made up 2 steps. The using peak intensities...
Abstract Fluid catalytic cracking (FCC) is a major process in oil refineries to produce gasoline and base chemicals from crude fractions. The spatial distribution acidity of zeolite aggregates embedded within the 50–150 μm‐sized FCC spheres heavily influence their performance. Single‐molecule fluorescence‐based imaging methods, namely nanometer accuracy by stochastic chemical reactions (NASCA) super‐resolution optical fluctuation (SOFI) were used study activity sub‐micrometer ZSM‐5 domains...
A spectroscopic depth profiling approach is demonstrated for layers of non-transparent, diffusely scattering materials. The technique based on the temporal discrimination between Raman photons emitted from surface and originating a deeper layer. Excitation was carried out with frequency-doubled, 3 ps Ti:sapphire laser system (398 nm; 76 MHz repetition rate). Time-resolved detection an intensified CCD camera that can be gated 250 gate width. performance assessed using 1 mm 2 pathlength...
A new diagnostic concept based on deep Raman spectroscopy is proposed permitting the non-invasive determination of level carbonate substitution in type II calcifications (HAP). The has shown to be directly associated with pathology surrounding breast tissue and different groups can therefore separated using specific features spectra calcifications. This study explores principle distinguishing between calcifications, found proliferating lesions, by strongest peak from calcium hydroxyapatites...
Abstract Fluid catalytic cracking (FCC) is a major process in oil refineries to produce gasoline and base chemicals from crude fractions. The spatial distribution acidity of zeolite aggregates embedded within the 50–150 μm‐sized FCC spheres heavily influence their performance. Single‐molecule fluorescence‐based imaging methods, namely nanometer accuracy by stochastic chemical reactions (NASCA) super‐resolution optical fluctuation (SOFI) were used study activity sub‐micrometer ZSM‐5 domains...
Within a fluid catalytic cracking (FCC) unit, mixture of catalyst particles that consist either zeolite Y (FCC-Y) or ZSM-5 (FCC-ZSM-5) is used in order to boost the propylene yield when processing crude oil fractions. Mixtures differently aged FCC-Y and FCC-ZSM-5 circulating FCC so-called equilibrium (Ecat), are routinely studied monitor overall efficiency process. In this study, age individual evaluated based upon photographs after selective staining with substituted styrene molecules. The...
Abstract Review: 63 refs.