The LUMOS II combines easy handling with cutting-edge FPA imaging performance for highest spatial resolution close to the diffraction limit. All switchable hardware parts are motorized and are automatically set as required within the analytical workflow.
La TGA-DTA simultanea permette di identificare in modo semi-quantitativo e qualitativo i componenti di una sostanza che in un determinato intervallo di temperatura perde peso e/o assorbe calore. La simultaneità delle due analisi aumenta la possibilità di identificazione. La strumentazione è costituita da una termobilancia che con un sistema di termocoppie permettere di registrare contemporaneamente le perdite di peso dovute a decomposizioni/trasformazioni dei costituenti della sostanza in esame e gli assorbimenti/emissioni di calore caratteristici delle loro trasformazioni.
Thermo-sensitive liquid crystals may result, for some aspects, good host materials for plasmonic nanoparticles. In particular they are suitable to study and measure the temperature variations produced by photo-induced plasmonic joule effect in the metallic nanoparticles.
A new generation of reconfigurable optical components is conceived by bridging the photothermal properties of gold nanoparticles and the thermosensitivity of liquid crystalline materials. As such, gold nanorods (GNRs) heated using light are used to activate efficient hidden diffraction gratings realized in a blend made of a room temperature polymerizable liquid crystal (PLC) and nematic liquid crystal (NLC).
Plasmonic photo-thermal therapy (PPTT) is a minimally invasive, drug-free, therapy based on the properties of noble metal nanoparticles, able to convert a bio-transparent electromagnetic radiation into heat. PPTT has been used against cancer and other diseases. Herein, we demonstrate an antimicrobial methodology based on the properties of gold nanorods (GNRs). Under a resonant laser irradiation GNRs become highly efficient light to heat nano-converters extremely useful for PPTT applications.
We investigate the discrete diffraction phenomenon in a Polymer-Liquid Crystal-Polymer Slices (POLICRYPS) overlaying a random distribution of gold nanoparticles (AuNPs, plasmonic elements). We study the propagation of a CW green laser beam through the waveguide structure as a function of beam polarization, laser intensity and sample temperature. It turns out that the plasmonic field created at the interface between AuNPs and POLICRYPS waveguides enables and stabilizes the optical field propagation within the responsive nematic liquid crystal channels.
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