Search results for "Hector"
showing 9 items of 9 documents
Exploring the cellular uptake of hectorite clay mineral and its drug carrier capabilities.
2022
In the last years, the use of clay minerals for pharmaceutical purposes has increased due to their interesting properties. Hectorite (Ht) is a clay belonging to the smectite group which has attracted attention for applications in biology, tissue engineering and as drug carrier and delivery system. However, the mechanisms involved in Ht cellular uptake and transport into cells, are still unclear. Herein, we used a labeled Ht (Ht/1Cl) to study both the cellular uptake, by confocal laser scanning microscopy, and internalization pathways involved in the cellular uptake, by various endocytosis-inhibiting studies and fluorescence microscopy. These studies highlighted that Ht can penetrate the cel…
Synthesis and characterization of nanomaterial based on halloysite and hectorite clay minerals covalently bridged
2021
Halloysite is an aluminosilicate clay with a predominantly hollow tubular structure (HNTs) able to act as a nanocontainer for the encapsulation of several chemicals. However, HNTs possess low affinity for metal ions in their pristine form and they need to be modified for improving their adsorption capabilities. Therefore, to overcome this issue herein we report a straightforward approach for the covalent modification of the external surface of halloysite nanotubes with hectorite clay. Compared to halloysite, hectorite possesses a lamellar structure with higher cation exchange capacity. The covalent linkage between the two clays was verified by several techniques (FTIR spectroscopy, 13C CP-M…
PIGNATELLI, Ettore
2015
Profilo biografico di Ettore Pignatelli, viceré di Sicilia, conte di Monteleone (morto a Palermo nel 1535) Biographical profile of Hector Pignatelli, viceroy of Sicily, count of Monteleone (died Palermo, 1535)
Ciprofloxacin carrier systems based on hectorite/halloysite hybrid hydrogels for potential wound healing applications
2021
The design of multifunctional nanomaterials which can help the healing processes of skin, preventing the bacterial infections, is crucial for the development of suitable therapy for the treatment of chronic lesions. The use of clay minerals in wound healing applications is well documented since the prehistoric period and offers several advantages due to their intrinsic properties. Herein, we report the development of ciprofloxacin carrier systems based on hectorite/halloysite (Ht/Hal) hybrid hydrogels for potential wound healing applications. To achieve this objective firstly the ciprofloxacin molecules were loaded onto Hal by a supramolecular and covalent approach. The so obtained fillers …
Cestodes from Hector's beaked whale ( Mesoplodon hectori ) and spectacled porpoise ( Phocoena dioptrica ) from Argentinean waters.
2010
Single individuals of 2 little-known cetacean species, Mesoplodon hectori and Phocoena dioptrica, stranded and died on the coast of Argentina (Buenos Aires and Chubut provinces, respectively) and were studied for the presence of helminths. The cestodes found were described and illustrated using light microscopy. The following cestode taxa were recovered: Tetrabothrius (Tetrabothrius) hobergi n. sp. (several fragmented specimens, at least 1 gravid) and Tetrabothrius (s.l.) sp. 1 (several fragmented immature specimens) from M. hectori, and Tetrabothrius (s.l.) sp. 2 (single fragmented immature specimen) and 2 morphotypes of tetraphyllidean larvae from P. dioptrica. Tetrabothrius (T.) hobergi …
Hectoris spolium. (Sen. Troad. 990). Una controversa rappresentazione di Ecuba nelle Troiane di Seneca
2020
In the invective that Hecuba addresses to Ulysses in Troad. 990-991 Leo was the first to judge the expression Hectoris spolium feret / qui tulit Achillis? interpolated. Retracing the history of the interpretation, the paper considers the verses authentic: they offer a brilliant line of the queen, who ironically defines herself as Hectoris spolium.
Modernisierung biographischen Erzählens. Beobachtungen zu Arnold Zweigs Künstlernovelle Symphonie Fantastique
2020
This article is devoted to the German-Jewish writer Arnold Zweig’s (1887–1968) biographical novella Symphonie Fantastique (1943), told from the perspective of a young musicologist participating in World War II, applied to the life and work of French composer Hector Berlioz. Arnold Zweig not only writes the biography of one of the most prominent French composers for Harold Breton, but he also confronts the Vichy Regime. The aim of this article is to capture the technique of Arnold Zweig, who combines history and the identification of an artist with a given object.
Due padri, due figli: modelli drammatici 'al maschile' nelle Troiane di seneca
2017
In Senecan Troades the female component plays a prominent role; nevertheless the tragedy stages, with an evident reduplication, two exemplary cases of male pairs consisting of a father and a son: Achilles and Pyrrhus on the one hand, Hector and Astyanax on the other. The papers deals with that, according to the idea that Seneca composes the drama by re-reading the myth in the light of a crucial aspect of Latin thought such as the inheritance of values and patterns of behavior that passes from father to son.