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Capacitive actuation and switching of add–drop graphene-silicon micro-ring filters

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photonics research 2017年第6期5卷 274-278页

作者： TOMMASO CASSESE MArCO ANgELO gIAMBrA VITO SOrIANELLO gABrIELE dE angelis MICHELE MIdrIO MArIANNA pANTOUVAKI JOrIS VAN CAMpENHOUT INgE ASSELBErgHS CEdrIC HUYgHEBAErT ANTONIO d'ErrICO MArCO rOMAgNOLI Scuola Superiore Sant'Anna-Te CIp Institute CNIT-Consorzio Nazionale Interuniversitario per le Telecomunicazioni CNIT-Consorzio Nazionale Interuniversitario per le Telecomunicazioni Università degli Studi di Udine Imec Ericsson research

We propose and experimentally demonstrate capacitive actuation of a graphene–silicon micro-ring add/drop filter. The mechanism is based on a silicon–SiO_2–graphene capacitor on top of the ring waveguide. We show the capacitive actuation of the add/drop functionality by a voltage-driven change of the graphene optical absorption. The proposed capacitive solution overcomes the need for continuous heating to keep tuned the filter's in/out resonance and therefore eliminates "in operation" energy consumption.

关键词： Mrr drop graphene-silicon micro-ring filters Capacitive actuation and switching of add

Impact of seed amplification assay and surface-enhanced raman spectroscopy combined approach on the clinical diagnosis of Alzheimer’s disease

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Translational Neur.d.generation 2023年第1期12卷 416-427页

作者： Cristiano d’Andrea Federico Angelo Cazzaniga Edoardo Bistaffa Andrea Barucci Marella de angelis Martina Banchelli Edoardo Farnesi panagis polykretis Chiara Marzi Antonio Indaco pietro Tiraboschi giorgio giaccone paolo Matteini Fabio Moda Institute of Applied physics“Nello Carrara” National Research Council50019 Sesto FiorentinoItaly division of Neurology 5 and Neuropathology Fondazione IRCCS Istituto Neurologico Carlo Besta20133 MilanItaly Institute of physical Chemistry(IpC)and Abbe Center of photonics(ACp) Friedrich Schiller University Jena07743 JenaGermany Leibniz Institute of photonic Technology 07745 JenaGermany

Background The current diagnosis of Alzheimer’s disease(Ad)is based on a series of analyses which involve clinical,instrumental and laboratory ***,signs,symptoms and biomarker alterations observed in Ad might overlap with other.d.mentias,resulting in *** Here we describe a new diagnostic approach for Ad which takes advantage of the boosted sensitivity in biomolecular.d.tection,as allowed by seed amplification assay(SAA),combined with the unique specificity in biomolecular recognition,as provided by surface-enhanced raman spectroscopy(SErS).results The SAA-SErS approach supported by machine learning data analysis allowed efficient identification of pathological Aβoligomers in the cerebrospinal fluid of patients with a clinical diagnosis of Ad or mild cognitive impairment due to *** Such analytical approach can be used to recognize disease features,thus allowing early stratification and selection of patients,which is fundamental in clinical treatments and pharmacological trials.

关键词： Alzheimer’s disease Amyloid-βprotein Seed amplification assay Surface-enhanced raman spectroscopy

replication of interleukin 23 receptor and autophagy-related 16-like 1 association in adult-and pediatric-onset inflammatory bowel disease in Italy

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Wor.d.Journal of gastroenterology 2008年第29期14卷 4643-4651页

作者： Anna Latiano Orazio palmieri Maria rosa Valvano renata d'Incà Salvatore Cucchiara gabriele riegler Anna Maria Staiano Sandro Ardizzone Salvatore Accomando gian Luigi de angelis giuseppe Corritore Fabrizio Bossa Vito Annese U.U. O.O. di gastroenterologia ed Endoscopia Ospedale IRCCS-CSSSan Giovanni Rotondo (Fg) 71013 Italy Cattedra di gastroenterologia Università di PadovaPadova 35122 Italy Clinica pediatrica Università "La Sapienza" Roma 00185 Italy Cattedra di gastroenterologia Università di NapoliNapoli 80131 Italy Clinica pediatrica Università di Napoli Napoli 80131 Italy Unità di gastroenterologia Ospedale "Sacco" Milano 20157 Italy Clinica pediatrica Università di palermo Palermo 90128 Italy Clinica pediatrica Università di parma Parma 43100 Italy

AIM: To investigate gene variants in a large Italian inflammatory bowel disease (IBd) cohort, and to analyze the correlation of sub-phenotypes (including age at diagnosis) and epistatic interaction with other IBd genes. METHOdS: Total of 763 patients with Crohn's disease (Cd, 189 diagnosed at age rs), 843 with ulcerative colitis (UC, 179 diagnosed rs), 749 healthy controls, and 546 healthy parents (273 trios) were included in the study. The rs2241880 [autophagy-related 16-like 1 (ATg16L1)], rs11209026 and rs7517847 [interleukin 23 receptor (IL23r)], rs2066844, rs2066845, rs2066847 (CArd15), rs1050152 (OCTN1), and rs2631367 (OCTN2) gene variants were genotyped. rESULTS: The frequency of g allele of ATg16L1 SNp (Ala197Thr) was increased in patients with Cd compar.d.with controls (59% vs 54% respectively) (Or = 1.25, CI = 1.08-1.45, p = 0.003), but not in UC (55%). The frequency of A and g (minor) alleles of Arg381gln, rs11209026 and rs7517847 variants of IL23r were r.d.ced significantly in Cd (4%, Or = 0.62, CI = 0.45-0.87, p = 0.005; 28%, Or = 0.64, CI = 0.55-0.75, p par.d.with controls (6% and 38%, respectively). The A allele (but not g) was also r.d.ced signifi cantly in UC (4%, Or = 0.69, CI = 0.5-0.94, p = 0.019). No association was demonstrated with sub-phenotypes and interaction with CArd15 , and OCTN1/2 genes, although both gene variants were associated with pediatric-onset disease. CONCLUSION: The present study confirms the association of IL23r polymorphisms with IBd, and ATg16L1 with Cd, in both adult- and pediatric-onset subsets in our study population.

关键词： Inflammatory bowel disease Crohn'sdisease Ulcerative colitis genetic pr.d.sposition Autophagy-related 16-like 1 Interleukin 23 receptor genome-wide association study pediatric inflammatorybowel disease

Contrasting soil fungal communities in Mediterranean pine forests subjected to different wildfire frequencies

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Fungal diversity 2015年第1期70卷 85-99页

作者： Erika Buscardo Susana r.d.íguez-Echeverría Helena Freitas paolo de angelis João Santos pereira Ludo A.H.Muller Centro de Ecologia Funcional(CEF) Departamento de Ciências da VidaUniversidade de CoimbraCalçada Martim de Freitas3000-456 CoimbraPortugal department for Innovation in Biological Agro-Food and Forest Systems(DIBAF)University of TusciaVia S.Camillo de Lellis snc01100 ViterboItaly Escritório Central do LBA Instituto Nacional de Pesquisa da Amazônia(INPA)Av.AndréAraújo2936Campus IIAleixo69060-001 ManausAmazonasBrazil departamento de Engenharia Florestal Instituto Superior de AgronomiaUniversidade Técnica de LisboaTapada da Ajuda1349-018 LisbonPortugal Institut für Biologie—Botanik Freie Universität BerlinAltensteinstrasse 614195 BerlinGermany

Mediterranean forest ecosystems are characterized by various vascular plant groups with their associated mycor-rhizae and free living soil fungi with various ecological *** plays a major role in Mediterranean ecosystem dynamics and impacts both above-and below-ground community structure and ***,studies on the effects induced by alter.d.disturbance regimes(associated with recent land use and climate extremes)on fire ecology and especially on its below-ground impacts are *** objectives of this study were to evaluate the effects of different wildfire regimes on soil fungal community structure using two different molecular *** investigated the long-term effects of wildfire on soil fungal communities associated with pinus pinaster forests in central portugal,by comparing the results of denaturing gr.d.ent gel electrophoresis(dggE)-based profiling with those obtained with 454 *** forest stands with differing fire history and fire return interval,and vegetation cover(mature forest,early successional stage of pine regeneration,and forest converted to scrubland)were sampled 6 years after the last fire *** pyrosequencing-based approach indicated ***-fold higher numbers of taxa than ***,fungal community fingerprinting data obtained for the different study stands with dggE were congruent with those obtained with *** short(7.6 years)and long(24 years)fire return intervals(indicated by the presence of ericaceous shrubs in the understorey)induced a decrease in the abun-dance ratio between basidiomycetes and ascomycetes and appear.d.to r.d.ce the frequency of ectomycorrhizal fungal species and *** significantly r.d.ced the frequency of late stage successional taxa(*** and Cantharellales)and known or putative saprophytes belonging to the Clavulinaceae and the ***,early successional fungal species belonging to the Thelephoraceae were fav

关键词： 454 pyrosequencing dggE Wildfire frequency Soil fungal community Maritime pine

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^(183)Au核高自旋态转动带结构研究

高能物理与核物理 2005年第8期29卷 736-740页

作者：宋立涛周小红张玉虎郭应祥雷相国郑勇柳敏良 g.de angelis N.Marginean A.gadea d.r.Napoli M.Axiotis C.rusu T.Martinez 中国科学院近代物理研究所 Istituto Nazionale di Fisisca Nuclear Laboratori Nazionali di LegnaroItaly

通过重离子熔合蒸发反应和在束核谱学实验方法研究了奇A核183Au的高自旋态能级结构.扩展并更新了183Au的能级纲图.首次建立了183Au的πi13/2转动带的能量非优先带.分析并讨论了183Au中πh9/2转动带的能量非优先带和πf7/2转动带间的相... 详细信息

通过重离子熔合蒸发反应和在束核谱学实验方法研究了奇A核183Au的高自旋态能级结构.扩展并更新了183Au的能级纲图.首次建立了183Au的πi13/2转动带的能量非优先带.分析并讨论了183Au中πh9/2转动带的能量非优先带和πf7/2转动带间的相互作用.

关键词： ^183Au核高自旋态转动带能级纲图重离子

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形变双奇核^(184)Au中的强耦合带

中国科学：物理学、力学、天文学 2013年第2期43卷 135-141页

作者：李仕成张玉虎周小红柳敏良雷祥国郭松高丙水 angelis g MArgINEAN N gAdEA A NApOLI d r AXIOTIS M rUSU C MArTINEZ T 中国科学院近代物理研究所兰州730000 中国科学院大学北京100049 Istituto Nazionale di Fisica Nucleare Laboratori Nazionali di Legnaro Legnaro 1-35020 Italy Hahn-Mertner-Institut Berlin D-14109 Germany

利用重离子融合蒸发反应159Tb(29Si,4n)184Au布居了形变双奇核184Au的高自旋态,用gASp探测器阵列进行了在束实验测量.通过对实验数据的深入分析,新发现了一条可归属于184Au核的强耦合转动带.基于对转动带有效K值的分析以及从实验数据中... 详细信息

利用重离子融合蒸发反应159Tb(29Si,4n)184Au布居了形变双奇核184Au的高自旋态,用gASp探测器阵列进行了在束实验测量.通过对实验数据的深入分析,新发现了一条可归属于184Au核的强耦合转动带.基于对转动带有效K值的分析以及从实验数据中提取出的带内B(M1)/B(E2)值与理论计算值的比较,建议了转动带的准粒子组态和能级的自旋宇称值.

关键词：形变双奇核184Au 高自旋态转动带准粒子组态

giant photoinduced reflectivity modulation of nonlocal resonances in silicon metasurfaces

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Advanced photonics 2023年第6期5卷 83-91页

作者： Andrea Tognazzi paolo Franceschini Olga Sergaeva Luca Carletti Ivano Alessandri giovanni Finco Osamu Takayama r.d. Malureanu Andrei V.Lavrinenko Alfonso C.Cino domenico de Ceglia Costantino de angelis University of palermo Department of EngineeringPalermoItaly National Institute of Optics-National research Council PalermoItaly University of Brescia Department of Information EngineeringPalermoItaly ITMO University School of Physics and EngineeringSaint-PetersburgRussia ETH Zurich Institute for Quantum ElectronicsDepartment of PhysicsOptical Nanomaterial GroupZurichSwitzerland Technical University of denmark Department of Electrical and Photonics EngineeringKongens LyngbyDenmark

Metasurfaces offer a unique playground to tailor the electromagnetic field at subwavelength scale to control polarization,wavefront,and nonlinear *** of the optical response of these structures is challenging due to the nanoscale size of their constitutive elements.A long-sought solution to achieve tunability at the nanoscale is all-optical modulation by exploiting the ultrafast nonlinear response of ***,the nonlinear response of materials is inherently very weak,and,therefore,requires optical excitations with large values of *** show that by properly tuning the equilibrium optical response of a nonlocal metasurface,it is possible to achieve sizable variation of the photoinduced out-ofequilibrium optical response on the picosecond timescale employing fluences smaller than 250μJ∕cm^(2),which is 1 order of magnitude lower than previous studies with comparable reflectivity variations in silicon *** results pave the way to fast devices with large modulation amplitude.

关键词： nonlocal metasurface nanophotonics ultrafast modulation Fano resonance

Structure above K-isomer in ^(130)Ba

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IMp & HIrFL Annual report 2017年第1期 21-23页

作者： guo Song Qiang Yunhua C.M.petrache Liu Minliang Wang Jianguo A.Astier B.F.Lv d.Bazzacco g.de angelis Fang Yongde Li guangshun Zheng Kuankuan Li ren A.goasduff K.Hadynska g.Jaworski d.r.Napoli M.Siciliano J.J.Valiente-dobon Institute of Modern physics Chinese Academy of SciencesLanzhou730070China CSNSM Universite Paris-SudCNRS-IN2P3Universite Paris-SaclayOrsayFrance INFN Laboratori Nazionali di LegnaroLegnaroItaly

Isomeric I^(π)=8^(-) states have been observed in the even-even N=74 nuclei ^(138)gd[1],^(136)Sm[2],^(134)Nd[3],^(132)Ce[4],^(130)Ba[5],^(128)Xe[6]with half-lives ranging from nanoseconds(Xe)to milliseconds(Ba,Ce).rotational bands built on the K^(π)=8^(-) isomer were identified in all these isotones,with the exception of *** singleparticle configuration of the isomers have been deduced from theΔI=2 toΔI=1γ-ray intensity branching ratios,which allowed to extract the(gK􀀀gr)/Q0 values,and therefore the quasi-particle configuration of the state.

关键词： state. isomers allowed

Chemical Sensitivity of Luminescent Epitaxial Surface Inp Quantum dots

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Journal of Sensor Technology 2013年第1期3卷 1-5页

作者： roberta de angelis Mauro Casalboni Ivan Colantoni Liliana d’Amico Fabio de Matteis Fariba Hatami William T. Masselink paolo prosposito department of physics Humboldt University Berlin Germany INSTM Research Unit of the University of Roma “Tor Vergata” Rome Italy physics department University of Rome “Tor Vergata” Rome Ital physics department University of Rome “Tor Vergata” Rome Italy

Surface Inp quantum dots grown by gas source molecular beam epitaxy on In0.48ga0.52p buffer layer lattice matched to gaAs substrate shows a broad-band near-infrar.d.photoluminescence ranging from 750 to 865 nm dependent on their.d.mensions. A reversible luminescence intensity enhancement has been observed when the quantum dots were exposed to vapours of different chemical solvents with the highest sensitivity for alcohol (methanol and ethanol) vapours. The luminescent behaviour is dependent on the solvent type and concentration. The peak energy and band shape of the luminescence are not affected by the solvent vapour.

关键词： Vapour Sensitivity Quantum dot photoluminescence Inp Organic Solvent