Search results for "liquid"
showing 10 items of 4351 documents
Protonazione del p-nitrofenato di sodio in liquidi ionici: una "sonda" per la determinazione della forza acida
LIQUIDI IONICI E CARBON DOTS UNITI NEI GEL IBRIDI!
2020
La ricerca di materiali sempre più efficienti abbraccia svariati campi della società attuale e l’unione di due componenti con peculiarità complementari può generare materiali altamente innovativi. I gel formati da carbon nanodots e liquidi ionici non soltanto preservano le caratteristiche dei singoli componenti, ma ne migliorano le prestazioni, generando così un materiale ibrido performante e facilmente modulabile in base alle applicazioni richieste.
Complessi liquido ionico-cobalto: un’interazione termocromica
2019
Le ben note proprietà chimico-fisiche dei liquidi ionici (ILs), unite alla versatilità strutturale, sono alla base delle loro numerose e differenti applicazioni. In questo lavoro, si presenta un’interazione termocromica reversibile, sia in soluzione che in un film polimerico, tra un IL portante sul catione un residuo gluconammidico e il sale di cobalto Co(NTf2)2. I gruppi ossidrilici sul catione e l’anione bromuro dell’IL coordinano il Co al variare della temperatura applicata. A temperatura ambiente il complesso OH-Co risulta ottaedrico (rosa) mentre, intorno ai 60 °C, la geometria diviene tetraedrica con lo ione bromuro che coordina il Co (blu). Lo studio VT UV-vis (Figura 1) ha permesso …
Large-Scale Formation of DNA Origami Lattices on Silicon
2023
In recent years, hierarchical nanostructures have found applications in fields like diagnostics, medicine, nano-optics, and nanoelectronics, especially in challenging applications like the creation of metasurfaces with unique optical properties. One of the promising materials to fabricate such nanostructures has been DNA due to its robust self-assembly properties and plethora of different functionalization schemes. Here, we demonstrate the assembly of a two-dimensional fishnet-type lattice on a silicon substrate using cross-shaped DNA origami as the building block, i.e., tile. The effects of different environmental and structural factors are investigated under liquid atomic force microscopy…
Exploring Bioequivalence of Dexketoprofen Trometamol Drug Products with the Gastrointestinal Simulator (GIS) and Precipitation Pathways Analyses
2019
The present work aimed to explain the differences in oral performance in fasted humans who were categorized into groups based on the three different drug product formulations of dexketoprofen trometamol (DKT) salt&mdash
Towards 14C-free liquid scintillator
2017
A series of measurements has been started where the 14C concentration is determined from several liquid scintillator samples. A dedicated setup has been designed and constructed with the aim of measuring concentrations smaller than 10−18. Measurements take place in two underground laboratories: in the Baksan Neutrino Observatory, Russia, and in the new Callio Lab in the Pyhäsalmi mine, Finland. Low-energy neutrino detection with a liquid scintillator requires that the intrinsic 14C concentration in the liquid is extremely low. In the Borexino CTF detector the concentration of 2 × 10−18 has been achieved being the lowest value ever measured. In principle, the older the oil or gas source that…
Measuring the 14C content in liquid scintillators
2016
We are going to perform a series of measurements where the 14C/12C ratio will be measured from several liquid scintillator samples with a dedicated setup. The setup is designed with the aim of measuring ratios smaller than 10−18. Measurements take place in two underground laboratories: in the Baksan Neutrino Observatory, Russia and in the Pyh¨asalmi mine, Finland. In Baksan the measurements started in 2015 and in Pyh¨asalmi they start in the beginning of 2015. In order to fully understand the operation of the setup and its background contributions a development of simulation packages has also been started. Low-energy neutrino detection with a liquid scintillator requires that the intrinsic …
LIQUID BIOPSY AS A DYNAMIC TOOL FOR LUNG CANCER MANAGEMENT: A FEASIBILITY STUDY FOR PLASMA-DERIVED EXOSOMAL miRNAs AND CELL-FREE DNA.
Association of circulating tumor DNA (ctDNA) mutations and circulating miRNAs variations, through liquid biopsy, in Non-Small Cell Lung Cancer (NSCLC…
The relationship between credit ratings and asset liquidity: Evidence from Western European banks
2020
This study examines the role of asset liquidity in Western European banks’ credit rating downgrades and upgrades over the 2005–2017 period. The results suggest that changes in bank credit ratings have been more favorable for banks that have a liquid asset portfolio. Furthermore, asset liquidity has a stronger effect on the credit rating of banks that already have an illiquid asset portfolio. In contrast, the effect is significantly smaller or nonexistent for the most liquid banks. These results imply that the new liquidity regulation introduced by the Basel III requirements will improve the stability and hence decrease the fragility of the European banking sector. Furthermore, the benefits …