Experimental setup for light-to-heat NIR conversion measurements of gold nanoparticle solutions

application of experimental design to emulsion liquid membrane pertraction of gold ons from aqueous solutions

Setup for investigating gold nanoparticle penetration through reconstructed skin and comparison to published human skin data.

Owing to the limited source of human skin (HS) and the ethical restrictions of using animals in experiments, in vitro skin equivalents are a possible alternative for conducting particle penetration experiments. The conditions for conducting penetration experiments with model particles, 15-nm gold nanoparticles (AuNP), through nonsealed skin equivalents are described for the first time. These co...

Experimental Setup for Measuring the Thermal Conductivity of Pressurized Solutions

Knowledge about the thermal conductivity is expedient whenever heat transport is involved in a process. As pressure plays an important role in a multitude of treatments or reactions, conductivity measurements have also been carried out under pressure for various substances (e. g. lubricants, plant oils and several foods). Experimental data are needed as this property cannot be derived from equa...

Light-assisted, templated self-assembly of gold nanoparticle chains.

We experimentally demonstrate the technique of light-assisted, templated self-assembly (LATS) to trap and assemble 200 nm diameter gold nanoparticles. We excite a guided-resonance mode of a photonic-crystal slab with 1.55 μm laser light to create an array of optical traps. Unlike our previous demonstration of LATS with polystyrene particles, we find that the interparticle interactions play a si...

Optical trapping and light-induced agglomeration of gold nanoparticle aggregates

This paper demonstrates the optical trapping of micron-sized gold nanoparticle aggregates GNAs with a TEM00 mode laser at 532 nm and reports the observation of an unusual light-induced agglomeration phenomenon that occurs besides the trapping of the GNAs. The observed agglomerate has a 60–100 m donut-shaped metal microstructure with the rate of formation dependent on the laser power used. Citra...