A5005475201- Microfluidic and Capillary Electrophoresis Applications
- Microfluidic and Bio-sensing Technologies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Gold and Silver Nanoparticles Synthesis and Applications
- Lipid Membrane Structure and Behavior
- Molecular Sensors and Ion Detection
- Electrochemical Analysis and Applications
- Pickering emulsions and particle stabilization
- Photonic and Optical Devices
- 3D Printing in Biomedical Research
- Advanced Biosensing Techniques and Applications
- Lipid metabolism and biosynthesis
- Biosensors and Analytical Detection
- Nanopore and Nanochannel Transport Studies
- Electrowetting and Microfluidic Technologies
- Catalysis and Hydrodesulfurization Studies
- RNA Interference and Gene Delivery
- Nanowire Synthesis and Applications
- Hematopoietic Stem Cell Transplantation
- Plasmonic and Surface Plasmon Research
- Advanced Materials Characterization Techniques
- Nanomaterials and Printing Technologies
- Modular Robots and Swarm Intelligence
- Advanced Fluorescence Microscopy Techniques
- Minerals Flotation and Separation Techniques
University of Southern Denmark
2011-2024
University of York
2022-2023
University of Liverpool
2015-2021
Liverpool Hospital
2016
Carborane-capped gold nanoparticles (Au/carborane NPs, 2–3 nm) can act as artificial ion transporters across biological membranes. The particles themselves are large hydrophobic anions that have the ability to disperse in aqueous media and partition over both sides of a phospholipid bilayer membrane. Their presence therefore causes membrane potential is determined by relative concentrations on each side according Nernst equation. tend adsorb flip if changes require their repartitioning. Such...
Abstract Multiplexed, specific, and sensitive detection of antigens is critical for the rapid accurate diagnosis disease informed development personalized treatment plans. Here, it shown that polymer microsphere lasers can be used as photonic sensors to monitor quantify direct surface binding biomolecules via changes in refractive index. The unique spectral signature each individual laser find their size effective index which adds a new encoding dimension when compared conventional...
The changes in interparticle spacing upon hydration and dehydration of drop-cast films hydrophilic gold nanoparticles (GNP) have been measured situ with nanometer resolution using WetSTEM ESEM. These subtle variations correlate well the corresponding optical spectra perceived color as electrical conductivity films. AC impedance analysis allows us to differentiate between resistive capacitive components evaluate how these depend on average particle water content matrix, respectively. Thin...
Gold nanoparticles with variable hydrophobicity have been prepared in three different size regimes following established methods. The control of was achieved by complexation the 18-crown-6-CH<sub>2</sub>-thiolate ligand shell potassium ions. Potassium dependent phase transfer these particles from dispersion water to chloroform demonstrated, and equilibrium partitioning water–chloroform liquid/liquid systems quantified optical spectroscopy. gradual ions further monitored zeta potential...
Hydroconversion (hydrogenation and hydrogenolysis) of biomass-derived furanic compounds giving furan ring-hydrogenation ring-cleavage products attracts interest for sustainable production chemicals fuels. Here, the hydroconversion 2,5-dimethylfuran (DMF), chosen as a model compound, was investigated at gas-solid interface over carbon-supported Pt, Pd, Rh Ru metal catalysts in fixed-bed reactor 70–90 °C ambient pressure. Pt/C mainly active ring cleavage DMF to produce 2-hexanone primary...
We report an investigation of the self-assembly patterns from functionalized gold nanoparticles (GNPs) by monitoring process in situ environmental scanning electron microscopy (ESEM) during both evaporation and condensation dispersant. As this method limits choice dispersants to water, GNPs with hydrophilic thiol ligands, containing poly(ethylene)glycol (PEG) groups, were used on a variety substrates including pre-patterned ones. Particular emphasis was given early stage deposition GNPs, as...
Abstract It is shown that plasmonic gold nanoparticles functionalised with a thiolated 18‐crown‐6 ligand shell agglomerate spontaneously from aqueous dispersion at elevated temperatures. This process takes place over narrow temperature range, accompanied by colour change red to purple‐blue and fully reversible. Moreover, the which it occurs can be adjusted degree of complexation crown ether moiety appropriate cations. More leads higher transition The has been studied UV/Vis spectroscopy,...
Although organic solar cells show intriguing features such as low-cost, mechanical flexibility and light weight, their efficiency is still low compared to inorganic counterparts. One way of improving by the use light-trapping mechanisms from nano- or microstructures, which makes it possible improve absorption charge extraction in device's active layer. Here, periodically arranged colloidal gold nanoparticles are demonstrated experimentally theoretically thus enhance cells. Surface-ordered...
The assembly of hybrid nanoparticles is a pioneering route for developing nanoscale functional devices, enabling breakthroughs in various fields, including electronics, photonics, energy, sensing, and biomedical applications. Here, we focus on the templated nano-sized colloidal systems using combination silica-coated superparamagnetic beads (MBs) polymer-coated gold (AuNPs) or silver (AgNPs). These introduce new functionalities that allow them to be used as nanomachines with numerous...
Bruce Law opened a general discussion of the paper by Brian Korgel: You use grazing incidence SAXS (GISAXS) to detect presence/absence nanocrystal superlattice structure. Are you detecting bulk or surface-induced structure? Can tell difference? How would
Selective unidirectional transport of barium ions between droplets in a water-in-chloroform emulsion is demonstrated. Gold nanoparticles (GNPs) modified with thiolated crown ether act as ion complexing shuttles that carry the from one population (
A versatile method for integrating liquid waveguides into PDMS microfluidic flow-cytometer chips is presented. By using a one-step direct replication, are produced with both and waveguide channels. Filling the channels high refractive index media, simple created of chip itself as cladding. Optical fibers used to couple laser light fluorescence into, out chip. Experimental results ray-tracing simulations show that intensity at distances above 5 mm from source more than four times higher when...
Abstract Detergent-induced vesicle interactions, critical for applications including virus inactivation, varies according to the detergent type and membrane composition, but underlying mechanistic details remain underexplored. Here, we use a lipid mixing assay based on Förster resonance energy transfer (FRET), single-vesicle characterization approaches identify that sub-micron sized vesicles are induced fuse by non-ionic Triton-X 100. We demonstrate process is multi-step mechanism,...