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180 results on '"De Matteis, Valeria"'

5. Shape-Driven Response of Gold Nanoparticles to X-rays

Author

Tarantino, Simona, primary, Capomolla, Caterina, additional, Carlà, Alessandra, additional, Giotta, Livia, additional, Cascione, Mariafrancesca, additional, Ingrosso, Chiara, additional, Scarpa, Edoardo, additional, Rizzello, Loris, additional, Caricato, Anna Paola, additional, Rinaldi, Rosaria, additional, and De Matteis, Valeria, additional

Published
2023
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11. The Application of Nano Titanium Dioxide for Hydrogen Production and Storage Enhancement.

Author

De Benedetto, Angelantonio, De Luca, Agnese, Pellegrino, Paolo, Rinaldi, Rosaria, De Matteis, Valeria, and Cascione, Mariafrancesca

Subjects
HYDROGEN production, HYDROGEN storage, TITANIUM dioxide, HYDROGEN as fuel, MAGNESIUM hydride, RENEWABLE energy sources
Abstract

The utilization of hydrogen (H2) as a renewable and clean energy carrier, free from the reliance on fossil fuels, represents a significant technological challenge. The use of renewable energy sources for hydrogen production, such as photocatalytic hydrogen generation from water under solar radiation, has garnered significant interest. Indeed, the storage of hydrogen presents another hurdle to the ongoing advancement of hydrogen energy. Concerning solid-state hydrogen storage, magnesium hydride (MgH2) has emerged as a promising option due to its high capacity, excellent reversibility, and cost-effectiveness. Nevertheless, its storage performance needs improvement to make it suitable for practical applications. Titanium dioxide (TiO2) has distinguished itself as the most extensively researched photocatalyst owing to its high photo-activity, good chemical and thermal stability, low toxicity, and affordability. This review highlights the application of TiO2 for hydrogen production under visible and solar light, with a particular focus both on its modification without the use of noble metals and its utilization as a catalyst to enhance the hydrogen storage performance of MgH2. [ABSTRACT FROM AUTHOR]

Published
2023
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14. Identification of SARS-CoV-2 by gold nanoparticles

Author

Rizzello, Loris and De Matteis, Valeria

Subjects
Nanopartícules, SARS-CoV-2, Nanoparticles, General Medicine
Abstract

The SARS-CoV-2 outbreaks highlighted the need for effective, reliable, fast, easy-to-do and cheap diagnostics procedures. We pragmatically experienced that an early positive-case detection, inevitably coupled with a mass vaccination campaign, is a milestone to control the COVID-19 pandemic. Gold nanoparticles (AuNPs) can indeed play a crucial role in this context, as their physicochemical, optics and electronics properties are being extensively used in photothermal therapy (PTT), radiation therapy (RT), drug delivery and diagnostic. AuNPs can be synthesized by several approaches to obtain different sizes and shapes that can be easily functionalized with many kinds of molecules such as antibodies, proteins, probes, and lipids. In addition, AuNPs showed high biocompatibility making them useful tool in medicine field. We thus reviewed here the most relevant evidence on AuNPs as effective way to detect the presence of SARS-CoV-2 antigens. We trust future diagnostic efforts must take this 'old-fashioned' nanotechnology tool into consideration for the development and commercialization of reliable and feasible detection kits.

Published
2022

31. Tuning cell behavior with nanoparticle shape

Author

Scarpa, Edoardo, primary, De Pace, Cesare, additional, Joseph, Adrian Steve, additional, de Souza, Senio Campos, additional, Poma, Alessandro, additional, Liatsi-Douvitsa, Eva, additional, Contini, Claudia, additional, De Matteis, Valeria, additional, Martí, Josep Samitier, additional, Battaglia, Giuseppe, additional, and Rizzello, Loris, additional

Published
2020
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34. Lewis acid-promoted synthesis and reactivity of beta-O-benzylhydroxylamino imides derived from D-glyceraldehyde

Author

Cardillo, Giuliana, Gentilucci, Luca, and De Matteis, Valeria

Subjects
Chemistry, Organic -- Research, Aldehydes -- Physiological aspects, Amino acids -- Physiological aspects, Stereochemistry -- Research, Hydrogen -- Physiological aspects, Benzene -- Physiological aspects, Biological sciences, Chemistry
Abstract

Research has been conducted on the beta-hydroxylamino imides. The synthesis of these compounds derived from D-glyceraldehyde has been carried out via the use of various Lewis acids and the details are reported.

Published
2002

50. Sustainable Synthesis of FITC Chitosan-Capped Gold Nanoparticles for Biomedical Applications

Author

Valeria De Matteis, Loris Rizzello, Mariafrancesca Cascione, Paolo Pellegrino, Jagpreet Singh, Daniela Manno, Rosaria Rinaldi, DE MATTEIS, Valeria, Rizzello, Lori, Cascione, Mariafrancesca, Pellegrino, Paolo, Singh, Jagpreet, Manno, Daniela Erminia, and Rinaldi, Rosaria

Subjects
Chitosan, Nanopartícules, gold nanoparticles, green synthesis, biomedical, fluorescent, Materials biomèdics, Quitosan, General Engineering, gold nanoparticles, green synthesis, biomedical, fluorescent, Nanoparticles, Biomedical materials
Abstract

The quest for novel nanoscale materials for different applications necessitates that they are easy to obtain and have excellent physical properties and low toxicity. Moreover, considering the ongoing environmental impact of noxious chemical waste products, it is important to adopt eco-friendly approaches for nanoparticle synthesis. In this work, a natural polymer (medium molecular weight chitosan) derived from chitin was employed as a reducing agent to obtain gold nanoparticles (AuNPs) with a chitosan shell (AuNPs@CS) by a microwave oven. The chitosan is economically viable and cost-competitive in the market showing also nontoxic behavior in the environment and living organisms. The synthesized AuNPs@CS-FITC NPs were fully characterized by spectroscopic and microscopic characterization techniques. The size distribution of NPs was about 15 nm, which is a suitable dimension to use in biomedical applications due to their high tissue penetration, great circulation in blood, and optimal clearance as well as low toxicity. The prepared polymer-capped NPs were further functionalized with a fluorescent molecule, i.e., Fluorescein-5-isothiocyanate (FITC), to perform imaging in the cell. The results highlighted the goodness of the synthesis procedure, as well as the high internalization rate that resulted in an optimal fluorescence intensity. Thus, this work presents a good sustainable/green approach-mediated polymer nanocomposite for various applications in the field of diagnostic imaging.

Published
2022

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