Autor: Torrisi, A. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Plasma characterization of the gas-puff target source dedicated for soft X-ray microscopy using SiC detectors
Autorzy:: Torrisi, A.
Wachulak, P.
Torrisi, L.
Bartnik, A.
Węgrzyński, Ł.
Fiedorowicz, H.
Tematy:: gas-puff target
plasma diagnostic technique
SiC detector
‘water-window’
EUV; Pokaż więcej
Wydawca:: Instytut Chemii i Techniki Jądrowej
Powiązania:: https://bibliotekanauki.pl/articles/147432.pdf Link otwiera się w nowym oknie
Opis:: An Nd:YAG pulsed laser was employed to irradiate a nitrogen gas-puff target. The interaction gives rise to the emission of soft X-ray (SXR) radiation in the ‘water window’ spectral range (λ = 2.3÷4.4 nm). This source was already successfully employed to perform the SXR microscopy. In this work, a Silicon Carbide (SiC) detector was used to characterize the nitrogen plasma emission in terms of gas-puff target parameters. The measurements show applicability of SiC detectors for SXR plasma characterization.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Nanostructured targets for TNSA laser ion acceleration
Autorzy:: Torrisi, L.
Calcagno, L.
Cutroneo, M.
Badziak, J.
Rosinski, M.
Zaras-Szydlowska, A.
Torrisi, A.
Tematy:: target normal sheat acceleration (TNSA)
laser ion acceleration
nanostructures
surface plasmon
resonance (SPR); Pokaż więcej
Wydawca:: Instytut Chemii i Techniki Jądrowej
Powiązania:: https://bibliotekanauki.pl/articles/146740.pdf Link otwiera się w nowym oknie
Opis:: Nanostructured targets, based on hydrogenated polymers with embedded nanostructures, were prepared as thin micrometric foils for high-intensity laser irradiation in TNSA regime to produce high-ion acceleration. Experiments were performed at the PALS facility, in Prague, by using 1315 nm wavelength, 300 ps pulse duration and an intensity of 1016 W/cm2 and at the IPPLM, in Warsaw, by using 800 nm wavelength, 40 fs pulse duration, and an intensity of 1019 W/cm2. Forward plasma diagnostic mainly uses SiC detectors and ion collectors in time of fl ight (TOF) confi guration. At these intensities, ions can be accelerated at energies above 1 MeV per nucleon. In presence of Au nanoparticles, and/or under particular irradiation conditions, effects of resonant absorption can induce ion acceleration enhancement up to values of the order of 4 MeV per nucleon.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Nanoimaging Using Soft X-Ray and EUV Sources Based on Double Stream Gas Puff Targets
Autorzy:: Wachulak, P.
Torrisi, A.
Ayele, M.
Bartnik, A.
Węgrzyński, Ł.
Fok, T.
Czwartos, J.
Fiedorowicz, H.
Tematy:: gas puff target
Fresnel zone plates
EUV/SXR microscopy
contact microscopy
imaging
nanometer resolution; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1030619.pdf Link otwiera się w nowym oknie
Opis:: In this work we present recent results on nanoscale imaging in the extreme ultraviolet and soft X-ray spectral ranges, describing three novel imaging systems dedicated for high spatial resolution imaging of nanoscale objects with the extreme ultraviolet and soft X-ray radiations. The extreme ultraviolet and soft X-ray full field microscopes operate at 13.8 nm and 2.88 nm wavelengths and are capable of imaging of nanostructures with a sub-50 nm spatial resolution. A soft X-ray contact microscope operates in the "water-window" spectral range from 2.3 to 4.4 nm wavelength, to obtain images of an internal structure of the investigated object in a thin surface layer of soft X-ray light sensitive photoresist. The development of such compact imaging systems may, in the near future, be important from the point of view of new research related to biological, material science, and nanotechnology applications. Such preliminary applications are also shown in the studies of biological samples, including carcinoma cells, diatoms, and neurons.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Applications of a compact "water window" source for investigations of nanostructures using SXR microscope
Autorzy:: Torrisi, A.
Wachulak, P.
Fahad Nawaz, M.
Bartnik, A.
Adjei, D.
Vondrová, Š.
Turňová, J.
Jančarek, A.
Fiedorowicz, H.
Tematy:: 52.38.-r
42.30.-d
42.62.-b
87.59.-e
68.37.Yz
07.85.Tt
41.50.+h
42.79.Dj; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1065141.pdf Link otwiera się w nowym oknie
Opis:: A compact soft X-ray microscope based on a nitrogen double-stream gas puff target soft X-ray source, operating at He-like nitrogen spectral line at the wavelength of λ =2.88 nm is presented. The desk-top size microscope was successfully demonstrated in transmission mode using the Fresnel zone-plate objective and it is suitable for soft X-ray source microscopy in the "water window" spectral range (λ = 2.3÷ 4.4 nm). Details about the soft X-ray source source, the microscope and an example of application in the biomedical field are shown and discussed.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Controlled functionalization of sp2 carbon allotropes for the reinforcement of diene elastomers
Autorzy:: Barbera, V.
Bernardi, A.
Torrisi, G.
Porta, A.
Galimberti, M.
Tematy:: sp2 carbon allotrope
functionalization
NR latex
alotrop węgla sp2
funkcjonalizowanie
lateks NR; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Inżynierii Materiałów Polimerowych i Barwników
Powiązania:: https://bibliotekanauki.pl/articles/273025.pdf Link otwiera się w nowym oknie
Opis:: This paper reports functionalization reactions of sp²
carbon allotropes, both nano- and nanostructured, able to introduce heteroatoms such as oxygen and nitrogen, without altering the bulk crystalline organization of the graphitic substrates. sp²
carbon allotropes were: carbon black (CB), nanosized graphite with high surface area (HSAG), multiwalled carbon nanotubes (CNT). Reactions of carbon allotropes were performed with either KOH or hydrogen peroxide or a serinol derivative, 2-(2,5-dimethyl-1H-pyrrol-1-yl)-1,3-propanediol (serinolpyrrole, SP), in the absence of solvents or catalysts, by simply donating either thermal or mechanical energy. Sulphur cured composites with HSAG containing hydroxy groups (from the reaction with KOH) revealed better mechanical properties than composites from melt blending with pristine HSAG. CB functionalized with SP was able to promote reduction of Payne effect in compounds based on CB and silica.
W artykule przedstawiono reakcje funkcjonalizacji alotropów węgla sp sp²
, zarówno nano-, jak i nanostrukturalnych, zdolnych do wprowadzania heteroatomów, takich jak tlen i azot, bez zmiany struktury krystalicznej materiałów grafitowych. Alotropami węgla sp²
były: sadza (CB), grafit nanokrystaliczny o dużej powierzchni (HSAG), wielowarstwowe nanorurki węglowe (CNT). Reakcje alotropów węgla przeprowadzono za pomocą KOH lub nadtlenku wodoru lub pochodnej serinolu, 2-(2,5-dimetylo-1H-pirol-1-ylo)-1,3-propanodiolu (serinolopirolu, SP), w nieobecności rozpuszczalników lub katalizatorów, po prostu dostarczając energii cieplnej lub mechanicznej. Kompozyty utwardzane siarką z grupami hydroksylowymi HSAG (z reakcji z KOH) wykazały lepsze właściwości mechaniczne niż kompozyty uzyskane w wyniku mieszania w stanie stopionym z czystym HSAG. CB funkcjonalizowana za pomocą SP była w stanie zapewnić redukcję efektu Payne’a w mieszankach opartych na CB i krzemionce.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Anthocyanin-rich fruits and mental health outcomes in an Italian cohort
Autorzy:: Torrisi, Sebastiano Alfio
Godos, Justyna
Guerrera, Ida
Alshatwi, Ali A.
Owczarek, Marcin
Grosso, Giuseppe
Micek, Agnieszka
Jurek, Joanna
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 7.

Tytuł:: Polyphenol-rich beverages and mental health outcomes
Autorzy:: Guerrera, Ida
Micek, Agnieszka
Castellano, Sabrina
Owczarek, Marcin
Alshatwi, Ali A.
Grosso, Giuseppe
Jurek, Joanna
Godos, Justyna
Torrisi, Sebastiano Alfio
Opis:: Emerging evidence suggests that diets rich in plant-based foods and beverages may exert plausible effects on human health tackling the risk of chronic diseases. Although the data are promising for numerous outcomes, including cardiovascular diseases, the data on mental health are limited. The aim of this study was to investigate the association between individual polyphenol-rich beverages intake and mental health outcomes, such as perceived stress, depressive symptoms, and sleep quality, among adult individuals living in the Mediterranean area. The demographic and dietary characteristics of a sample of 1572 adults living in southern Italy were analysed. Multivariate logistic regression analyses, controlling for confounding factors, were used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) of the association between individual polyphenol-rich and alcoholic beverages containing polyphenols and mental health outcomes. The multivariate model adjusted for background covariates and the Mediterranean diet showed that individuals with a moderate intake (up to 1 cup/glass per day) of coffee and tea were less likely to have high perceived stress (OR = 0.61, 95% CI: 0.45–0.84) and depressive symptoms (OR = 0.56, 95% CI: 0.39–0.80), respectively. Furthermore, regular coffee and moderate/regular red wine drinkers were less likely to have depressive symptoms (OR = 0.72, 95% CI: 0.54–0.95 and OR = 0.74, 95% CI: 0.54–0.99, respectively). No significant associations were retrieved for the intake of polyphenol-rich and alcoholic beverages and sleep quality. In conclusion, the results of the present study suggest that polyphenol-rich beverages may be associated with mental health, in terms of depressive symptoms and perceived stress. Nonetheless, further research exploring how the polyphenol-rich beverages impact brain health and what the optimal patterns of consumption are for different populations are warranted.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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