Search results for " Silver"
showing 10 items of 71 documents
Ad laudem Divini nominis et honorem gloriosissimae Dei Genetricis et semper Virginis Mariae. L’abbazia di Santa Maria di Altofonte
2019
Inediti documenti fanno in parte riemergere l’antico splendore dell’abbazia di Santa Maria di Altofonte, fondata da Federico III e retta dal XV secolo da abati commendatari appartenenti a nobili famiglie, come Ascanio Colonna, Scipione Borghese e Francesco Maria Medici. Dell’esiguo patrimonio artistico rimasto fa parte la coppia di reliquiari di argentiere messinese del 1727 ascritta alla committenza dell’abate Bartolotta. New documents partly re-emerge the ancient splendour of the abbey of Santa Maria di Altofonte, founded by Frederick III and ruled since the 15th century by commendatory abbots belonging to noble families, such as Ascanio Colonna, Scipione Borghese and Francesco Maria Medi…
Intrecci preziosi Arti Decorative Siciliane a Malta 1565-1798
2016
Il volume indaga opere e artisti siciliani quasi totalmente inediti attivi sull'Isola dei Cavalieri nel periodo compreso tra il 1565, anno della fondazione di La Valletta, e il 1798, allorché Malta fu conquistata da Napoleone Bonaparte. Interessanti figure di orafi e argentieri emerse da un’approfondita ricerca archivistica, e superbi manufatti quali argenti, coralli, alabastri, avori e ceroplastiche parte di collezioni pubbliche e private maltesi vengono studiati in relazione al più ampio contesto riguardante gli scambi artistici e culturali tra le due isole del Mediterraneo. The book deals with Sicilian artifacts and artists almost entirely unpublished active on the Island of Knights in t…
[Fe(TPT)(2/3){M(I)(CN)2}2]⋅nSolv (M(I) = Ag, Au): new bimetallic porous coordination polymers with spin-crossover properties.
2013
Two new heterobimetallic porous coordination polymers with the formula [Fe(TPT)2/3{MI(CN)2}2]¿nSolv (TPT=[(2,4,6-tris(4-pyridyl)-1,3,5-triazine]; MI=Ag (nSolv=0, 1¿MeOH, 2¿CH2Cl2), Au (nSolv=0, 2¿CH2Cl2)) have been synthesized and their crystal structures were determined at 120¿K and 293¿K by single-crystal X-ray analysis. These structures crystallized in the trigonal R-3m space group. The FeII ion resides at an inversion centre that defines a [FeN6] coordination core. Four dicyanometallate groups coordinate at the equatorial positions, whilst the axial positions are occupied by the TPT ligand. Each TPT ligand is centred in a ternary axis and bridges three crystallographically equivalent Fe…
Ad maiorem Dei gloriam: opere in argento e corallo nella committenza della famiglia Bona per le chiese di Bisacquino
2019
Il contributo tratta delle opere in argento e corallo commissionate dalla famiglia Bona per le chiese di Bisacquino. I manufatti realizzati nel XVII e nel XVIII secolo dalla maestranza palermitana degli argentieri e da quella trapanese dei corallari attestano ulteriormente l’alta professionalità degli abili artisti siciliani e l’importanza della committenza delle nobili famiglie per l’arricchimento degli edifici di culto. The essay studies the silver and coral works commissioned by the Bona family for the churches of Bisacquino. The artifacts made in the seventeenth and eighteenth centuries by Palermo’s silversmiths and the coral workers of Trapani further attest to the high level of skill …
Mazza processionale con santa Rosalia e il Genio di Palermo
2017
L'opera è riferita ad argentiere palermitano della fine del XVII - inizi del XVIII secolo The work refers to a Palermo silversmith from the end of the 17th - early 18th century
Solid phase extraction materials as a key for improving the accuracy of silver nanoparticle characterization with single-particle inductively coupled…
2022
The accurate characterization of silver nanoparticles (Ag NPs) in environmental samples is crucial for understanding the potential impact of these materials on the environment and human health. Single-particle inductively coupled plasma mass spectrometry (spICP-MS) is one of the few techniques available for quantifying NPs at environmentally relevant concentrations. However, the spICP-MS detection of Ag NPs can be interfered with coexisting dissolved analyte causing high background signals, which mask NP signals leading to a significant bias in NP characterization. In this paper, a simple sample pre-treatment procedure for efficient removal of dissolved silver in natural waters is proposed …
Le suppellettili liturgiche dagli anni Ottanta del Settecento ai primi decenni dell’Ottocento
2016
Il saggio analizza le suppellettili liturgiche d'argento delle chiese di Petralia Soprana realizzate dagli anni Ottanta del Settecento ai primi decenni dell’Ottocento per aggiornare e ampliare il patrimonio d'arte sacra del centro madonita. La lettura dei marchi e il ritrovamento di inediti documenti d'archivio hanno consentito di riferire le opere ad alcuni maestri palermitani, come Salvatore La Cecla e Salvatore Mercurio, e di individuare in qualche caso anche i committenti. The essay analyzes the silver liturgical furnishings of the churches of Petralia Soprana built from the eighties of the eighteenth century to the first decades of the nineteenth century to update and expand the herita…
Galvanic deposition of Chitosan-AgNPs as antibacterial coating
Thanks to mechanical properties similar human bones, metallic materials represent the best choice for fabrication of orthopedic implants. Although metals could be widely used in the field of biomedical implants, corrosion phenomena could occur, causing metal ions releasing around periprosthetic tissues leading, in the worst cases, to the development of infections. In these cases, patients need prolonged antibiotic therapies that may cause bacterial resistance. Preventing bacterial colonization of biomedical surfaces is the key to limiting the spread of infections. Antibacterial coatings have become a very active field of research, strongly stimulated by the increasing urgency of identifying…
Anticancer activity of biogenerated silver nanoparticles: an integrated proteomic investigation
2018
Silver nanoparticles (AgNPs), embedded into a specific polysaccharide (EPS), were biogenerated by Klebsiella oxytoca DSM 29614 under aerobic (AgNPs-EPSaer) and anaerobic conditions (AgNPs-EPSanaer). Both AgNPs-EPS matrices were tested by MTT assay for cytotoxic activity against human breast (SKBR3 and 8701-BC) and colon (HT-29, HCT 116 and Caco-2) cancer cell lines, revealing AgNPs-EPSaer as the most active, in terms of IC50, with a more pronounced efficacy against breast cancer cell lines. Therefore, colony forming capability, morphological changes, generation of reactive oxygen species (ROS), induction of apoptosis and autophagy, inhibition of migratory and invasive capabilities and prote…