Publications by authors named "C Perotto"
Purpose: The aim of the present study was to evaluate the sealing performance, expressed as microleakage (ML), of two root-end filling materials when used at different retro-preparation lengths.
Methods: Fifty single-rooted human teeth were collected for the study. The teeth were cut at the cement-enamel junction and endodontic treatment was performed.
The application of metal-organic framework (MOF) materials in electrochemical and electrochromic devices remains rare. One of the main reasons for this is the inability to readily access their detailed electrochemistry. The inherent insolubility of these materials does not allow interrogation by traditional solution-based electrochemical or spectroscopic methods.
View Article and Find Full Text PDFTailoring the Shape Memory Properties of Segmented Poly(ester urethanes) via Blending.
ACS Appl Mater Interfaces
July 2018
Article Synopsis
- Thermoplastic segmented polyurethanes (PUs) can utilize shape memory behavior through specific physical cross-links that respond to varying temperatures.
- This behavior can be enhanced by combining hydrogen-bonded hard segments with soft segments that can crystallize, effectively using their melting transitions as memory switches.
- The addition of crystallizable segments like poly(1,4-butylene adipate) (PBA) or poly(ε-caprolactone) (PCL) raises the crystallization temperature, allowing for excellent shape fixity at physiological temperatures, making these materials ideal for biomedical applications.
Article Synopsis
- The study addresses the challenges in creating synthetic analogs of [NiFe] hydrogenases, particularly those with CO and CN ligands.
- Three new bimetallic complexes containing nickel and iron centers were synthesized, showing interesting electron transfer and structural properties.
- Characterization via X-ray crystallography and various spectroscopic techniques indicates a complex redox behavior and a unique electronic structure that resembles the active sites of natural [NiFe] hydrogenases.
Article Synopsis
- A new theory of dynamic nuclear polarisation (DNP) through thermal mixing is proposed, using a quantum mechanics approach.
- A simplified 6-level model is created to test this theory and relate it to existing thermodynamic models.
- The research explores optimal conditions for enhancing nuclear polarization and the impact of electron resonance broadening, with simulations showing strong alignment with experimental data from BDPA and trityl free radicals.