Search results for "CN"
showing 10 items of 9699 documents
Nanomaterials: development of new analysis strategies
2022
La nanociencia y la nanotecnología representan áreas de investigación en expansión, que involucran estructuras, dispositivos y sistemas con propiedades y funciones novedosas. Los nanomateriales (NMs) son una pieza clave en estos campos de estudio cuyas propiedades y rendimiento particulares deben conocerse y estudiarse. De esta forma, en esta tesis se han llevado a cabo diferentes metodologías analíticas con el fin de determinar y caracterizar los NMs como analitos. Además, se han evaluado diferentes herramientas analíticas que emplean estos NMs, con el objetivo de mejorar los procesos analíticos existentes y desarrollar nuevos. Por lo tanto, las AuNPs y AgNPs como NPs metálicas, Carbon Bla…
Radiation sculpured nanogels as platform for novel therapeutic systems
2012
Veicolazione tramite sistemi nanoparticellari lipidici solidi di molecole di interesse biologico
2012
PREPARAZIONE E CARATTERIZZAZIONE DI NANOSISTEMI LIPIDICI PER IL DIREZIONAMENTO E IL RILASCIO MODIFICATO DI FARMACI E ACIDI NUCLEICI IN TERAPIA ONCOLO…
2016
sono stati sviluppati sistemi nanoparticellari in grado di intrappolare elevate quantità di farmaci e di legare materiale genico. I sistemi preparati sono stati caratterizzati da un punto di vista chimico-fisico e tecnologico farmaceutico. Sono stati infine utilizzati per prove in vitro e i risultati ottenuti hanno mostrato che essi possiedono le caratteristiche per potere essere considerati dei validi carrier per farmaci e materiale genico nel trattamento oncologico.
SUPERPARAMAGNETIC HYDROPHOBIC POLYASPARTAMIDE NANOPARTICLES FOR ANTICANCER DRUG DELIVERY
2012
Nanostructured formulations for the delivery of silibinin and other active ingredients for treating ocular diseases
2015
Alcohol-Selective Oxidation in Water under Mild Conditions via a Novel Approach to Hybrid Composite Photocatalysts
2015
Abstract The oxidation of alcohols to carbonyl compounds in a clean fashion (i.e., with water as a solvent or under solvent‐free conditions, and using O2 or H2O2 as the primary oxidant) is the subject of considerable research efforts. A new approach for the selective oxidation of soluble aromatic alcohols in water under mild conditions via a novel composite photocatalyst has been developed. The catalyst is synthesized by grafting 4‐(4‐(4‐hydroxyphenylimino)cyclohexa‐2,5dienylideneamino)phenol and silver nanoparticles onto the surface of moderately crystalline titanium dioxide. The titanium dioxide‐based composite was first extensively characterized and then employed in the catalytic oxidati…
Biocompatible Lipid Nanoparticles as Carriers to Improve Curcumin Efficacy in Ovarian Cancer Treatment
2017
Curcumin is a natural molecule with proved anticancer efficacy on several human cancer cell lines. However, its clinical application has been limited due to its poor bioavailability. Nanocarrier-based drug delivery approaches could make curcumin dispersible in aqueous media, thus overtaking the limits of its low solubility. The aim of this study was to increase the bioavailability and the antitumoral activity of curcumin, by entrapping it into nanostructured lipid carriers (NLCs). For this purpose here we describe the preparation and characterization of three kinds of curcumin-loaded NLCs. The nanosystems allowed the achievement of a controlled release of curcumin, the amounts of curcumin r…
Experimental Procedures of Accelerated Aging and Evaluation of Effectiveness of Nanostructured Products for the Protection of Volterra (Italy) Panchi…
2022
The aims of the research were to evaluate the effectiveness of the application of nanostructured products on Volterra calcarenite stone and to define the experimental conditions and procedures of accelerated aging tests, able to simulate different degradation on the studied lithotype. The work focused on methods of performing accelerated aging tests in order to simulate different effects of environmental decay involving stone used on a historical site. The rock samples were examined before and after three treatment types: cyclic salt spray chamber, cycles of freezing–thawing and cycles of thermal shock. After each artificial aging cycle, changes in appearance were noted and chemical and phy…