Search results for "CID"
showing 10 items of 19479 documents
Hyaluronan‐coated poly(propylene imine) dendrimers as biomimetic nanocarriers of doxorubicin
2022
A coating technology based on low molecular weight hyaluronic acid (HA) and ferulic acid (FA) was applied to the coating of low generation poly(propylene imine) dendrimers through a biocompatible hexa(ethylene glycol) spacer. The ensuing HA-FA-HEG-PPID dendrimeric materials showed interesting loading capability (between 7.65% and 9.08%) regarding anticancer agent doxorubicin, and their interactions with the drug appeared to hamper the drug release in the physiological environment. Thus, the stable nanostructured loaded delivery systems were able to internalize into cells expressing the HA receptor CD44 and to demonstrate high cytotoxicity comparable to that shown by equivalent amounts of fr…
Gelled electrolyte for nanostructured lead-acid battery
2019
In recent years, the storage of energy produced by renewable sources has become a topic of great interest. Lead-acid batteries are widely used in this field, in particular those based on VRLA (Valve-Regulated-Lead Acid) technology, in which the electrolyte is immobilized inside the battery. In this paper, the use of a hydrogel as an electrolyte was considered. Hydrogel can be described as a three-dimensional network of a hydrophilic polymer that can absorb large amounts of water (or aqueous solutions) without dissolving. Pb and PbO2 nanostructured electrodes were used in the battery that used hydrogel as an electrolyte. Two different types of hydrogels were synthesised, both based on PVA th…
Surface modification of poly(ethylene-co-acrylic acid) with amino-functionalized silica nanoparticles
2011
In this work we studied the possibility to achieve a hybrid-surface through the modification, via a facile wet chemical process, of the surface of films of poly(ethylene-co-acrylic acid) (EAA) with amino-modified silica nanoparticles. Films of EAA were preliminarily activated by the introduction of -COCl groups on their surface. Silica nanoparticles were thereafter covalently bound on the polymeric surface as confirmed by FTIR, ATR-FTIR, XPS, NMR and SEM determinations. The nanoparticles formed a multilayer on the film surface and covered almost uniformly the whole film surface. Direct measurements of superficial amino groups by titration allowed us to detect a concentration of about 18 nmo…
Balancing Between Narratives of the West and Hindu Nationalism in Emerging India
2019
India has been an important point of reference for Western identity, and the construction of an Orient. Vice versa, people in India have constructed their own Occidentalisms about Westerners, and the global position of ‘the West’, as well as to form an Indian identity. The West has represented the colonizer in India, but at the same time a source of valuable ideologies, values, policies, and innovations benefiting India. Moreover, many nationalist narratives in India emphasize self-reliance from and even superiority to the West. During Narendra Modi’s administration, the ‘New India’ has concentrated on taking a more active role in the world. Traditional elements of Indian tradition have bee…
Biological Activity of Extracts from Artemisia arborescens (Vaill.)L.: An Overview about Insecticidal, Antimicrobial, Antifungal and Herbicidal Prope…
2016
Following their evolutionary process, many plants have oriented their secondary metabolism towards the production of complex molecules, which often show an apparent protective function against pests (insects, fungi, viruses, but also competing plants). The identification and the study of such compounds could play a significant role in the frame of the development of new techniques for sustainable plant protection, where they could help in achieving the goal of a reduction in the use of the most highly-impact chemicals. The Mediterranean basin, with its very large biodiversity, represents a huge reservoir of highly promising plant material, which is scarcely explored as far. Indeed, prelimin…
Comparison of different theory models and basis sets in the calculation of 13C NMR chemical shifts of natural products.
2004
The influence of the calculation method in mimicking experimental 13C NMR chemical shifts of 15 low-polarity natural products singularly containing 10–20 carbon atoms was investigated by employing different quantum chemistry approaches and basis sets, both in the preliminary geometry optimizations and in the following single-point 13C GIAO calculations of the NMR chemical shifts. The geometries of the involved species were optimized at the PM3, HF, B3LYP and mPW1PW91 levels whereas the 13C NMR parameters were determined at the HF, B3LYP and mPW1PW91 levels. Different combinations of basis sets were also tested. The consistency and efficiency of the considered combinations of geometry optimi…
Development of an ad hoc natural whey starter culture for the production of Vastedda della valle del Belìce cheese
2013
This work was aimed to characterize the autochthonous lactic acid bacteria (LAB) of PDO Vastedda della valle del Belìce cheeses, produced in several dairy factories, for the development of an ad hoc starter culture preparation for the production of this cheese. To this purpose, winter and spring productions were analysed, in order to isolate LAB adapted to perform the fermentation at low temperatures. Plate counts showed the total microbial counts (TMC) till levels of 9 -1almost 10 CFU g and all cheese samples were dominated by coccus LAB. Not all samples were positive for the presence of enterobacteria, but when they were found their concentrations were at similar levels in both seasons. A…
Medidas específicas de atención a la diversidad
2008
Se describen las medidas específicas de atención a la diversidad para el alumnado con necesidades específicas de apoyo educativo en la normativa española derivada de la LOE.
Solución conjunta de casos de necesidades educativas especiales. Sospecha de altas capacidades.
2019
Se plantea un trabajo de colaboración entre estudiantes del grado en psicología y los grados en maestro/a en educación infantil y maestro/a en educación primaria para la solución de un caso práctico de educación especial.
Solución conjunta de casos de necesidades educativas especiales. Sospecha de discapacidad intelectual
2019
Se plantea un trabajo de colaboración entre estudiantes del grado en psicología y los grados en maestro/a en educación infantil y maestro/a en educación primaria para la solución de un caso práctico de educación especial.