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Multifunctional resonant wavefront-shaping meta-optics based on multilayer and multi-perturbation nonlocal metasurfaces

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Light(Science & Applications) 2022年第9期11卷 2194-2206页

作者： stephanie cmalek ADAM cOVERVIG ANDREA ALÙ NANFANG YU Department of Applied Physics and Applied Mathematics Columbia UniversityNew YorkNY 10027USA Photonics Initiative Advanced Science Research CenterCity University of New YorkNew YorkNY 10031USA Physics Program Graduate CenterCity University of New YorkNew YorkNY 10016USA

Photonic devices rarely provide both elaborate spatial control and sharp spectral control over an incoming *** optical metasurfaces,for example,the localized modes of individual meta-units govern the wavefront shape over a broad bandwidth,while nonlocal lattice modes extended over many unit cells support high quality-factor ***,we experimentally demonstrate nonlocal dielectric metasurfaces in the near-infrared that offer both spatial and spectral control of light,realizing metalenses focusing light exclusively over a narrowband resonance while leaving off-resonant frequencies *** devices attain this functionality by supporting a quasi-bound state in the continuum encoded with a spatially varying geometric *** leverage this capability to experimentally realize a versatile platform for multispectral wavefront shaping where a stack of metasurfaces,each supporting multiple independently controlled quasi-bound states in the continuum,molds the optical wavefront distinctively at multiple wavelengths and yet stay transparent over the rest of the *** a platform is scalable to the visible for applications in augmented reality and transparent displays.

关键词： spectrum resonant supporting

Modeling the effects of salt concentration on aqueous and organic electrolytes

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npj computational Materials 2023年第1期9卷 546-552页

作者： stephanie c.c.van der Lubbe Pieremanuele canepa Department of Materials Science and Engineering National University of Singapore9 Engineering Drive 1117575 SingaporeSingapore Department of chemical and Biomolecular Engineering National University of Singapore4 Engineering Drive 4117585 SingaporeSingapore Department of Electrical and computer Engineering and Texas center for Superconductivity University of HoustonHoustonTX 77204USA

Understanding the thermodynamic properties of electrolyte solutions is of vital importance for a myriad of physiological and technological *** mean activity coefficientγ±is associated with the deviation of an electrolyte solution from its ideal behavior and may be obtained by combining the Debye-Hückel(DH)and Born(B)***,the DH and B equations depend on the concentration and temperature-dependent static permittivity of the solutionεr(c,T)and the size of the solvated ions ri,whose experimental data is often not ***,we use a combination of molecular dynamics and density functional theory to predictεr(c,T)and ri,which enables us to apply the DH and B equations to any technologically relevant aqueous and nonaqueous electrolyte at any concentration and temperature of interest.

关键词： equations electrolyte apply

The inducible nitric oxide synthaseinhibitor 1400W as a potential treatment for retinal diseases

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Neural Regeneration Research 2021年第6期16卷 1221-1222页

作者： Sven Schnichels stephanie c.Joachim University Eye Hospital Tübingen Centre for OphthalmologyTübingenGermany Experimental Eye Research Institute University Eye HospitalRuhr-University BochumBochumGermany

The overproduction of reactive oxygen species is defined as oxidative *** deprived oxygen supply in tissues is known as *** mechanisms contribute to the pathogenesis of several retinal diseases,like glaucoma,age-related macular degeneration(AMD),and retinal *** is a neurodegenerative disease defined by a progressive loss of retinal ganglion cells(RGcs)and their axons causing visual field defects,which ultimately leads to *** AMD pathogenesis is further characterized by soft drusen,it involves the retinal pigment epithelium and the Bruch’s membrane-choroid complex.

关键词： AMD diseases potential

Glaucoma-like damage induced by S100B injection is accompanied by microglial response

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Neural Regeneration Research 2022年第3期17卷 572-574页

作者： Teresa Tsai stephanie c.Joachim Experimental Eye Research Institute University Eye HospitalRuhr-University BochumBochumGermany

Glaucoma is currently the second leading cause of blindness *** to aging societies the number of patients suffering from this disease will further increase in the next ***,glaucoma can remain asymptomatic until it is rather far progressed,hence about 10–50% of patients are unaware they suffer from this *** is a progressive optic neuropathy associated with changes at the optic nerve head.

关键词： S100B injection damage

Does HSP27 injection induce glaucoma damage in mice?

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Neural Regeneration Research 2024年第11期19卷 2347-2348页

作者： stephanie c.Joachim Sabrina Reinehr Experimental Eye Research Institute University Eye HospitalRuhr-University BochumBochumGermany

In a further aging society,excellent eyesight is an integral part of overall well-being and quality of *** good vision is crucial to maintaining mobility,independence,and mental *** can be several reasons for visual impairment in elderly people,these include age-related macular degeneration,the leading cause of vision loss among older adults,cataract,glaucoma,diabetic retinopathy,retinal detachment,and others.

关键词： HSP27 injection damage

Synthesis of Ag and cd nanoparticles by nanosecond-pulsed discharge in liquid nitrogen

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Frontiers of chemical Science and Engineering 2019年第2期13卷 360-368页

作者： Mahmoud Trad Alexandre Nominé Natalie Tarasenka Jaafar Ghanbaja cédric Noel malek Tabbal Thierry Belmonte Universite de Lorraine CNRSIJLF-54000 NancyFrance B.I. Stepanov Institute of Physics National Academy of Sciences of BelarusMinskBelarus Department of Physics American University of BeirutBeirutLebanon

The synthesis of cdO, Ag2O (5nm) and Ag (~20~30 nm) nano-objects is achieved simultaneously by nanosecond-pulsed discharges in liquid nitrogen between one cadmium electrode and one silver electrode. Oxidation occurs when liquid nitrogen is fully evaporated and nanoparticles are in contact with the air. No alloy is formed, whatever the conditions, even though both elements are present simultaneously, as showed by timeresolved optical emission spectroscopy. This lack of reactivity between elements is attributed to the high pressure within the discharge that keeps each metallic vapor around the electrode it comes from. Each element exhibits a specific behavior. cubic cd particles, formed at 4 kV, get elongated with filamentary tips when the applied voltage reaches 7 and 10 kV. cd wires are formed by assembly in liquid nitrogen of cd nanoparticles driven by dipole assembly, and not by dielectrophoresis. On the contrary, silver spherical particles get assembled into 2D dendritic structures. The anisotropic growth of these structures is assumed to be due to the existence of pressure gradients.

关键词： spark discharges submerged discharges timeresolved optical emission spectroscopy liquid nitrogen

What to Eat:Evidence for Selective Autophagy in Plants

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Journal of Integrative Plant Biology 2012年第11期54卷 907-920页

作者： Brice E.Floyd stephanie c.Morriss Gustavo c.MacIntosh Diane c.Bassham Department of Genetics Development and Cell BiologyIowa State UniversityAmes IA 50011USA Department of Biochemistry Biophysics and Molecular BiologyIowa State UniversityAmes IAUSA

Autophagy is a macromolecular degradation pathway by which cells recycle their contents as a developmental process, housekeeping mechanism, and response to environmental stress. In plants, autophagy involves the sequestration of cargo to be degraded, transport to the cell vacuole in a doublemembrane bound autophagosome, and subsequent degradation by lytic enzymes.

关键词： Autophagy degradation stress vacuole.

One-pot five-component synthesis of highly functionalized piperidines using oxalic acid dihydrate as a homogenous catalyst

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chinese chemical Letters 2012年第5期23卷 569-572页

作者： Seyed Sajad Sajadikhah malek Taher Maghsoodlou Nourallah Hazeri Sayyed Mostafa Habibi-Khorassani Anthony c.Willis Department of chemistry The University of Sistan and BaluchestanP.O.Box 98135-674ZahedanIran Research School of chemistry The Australian National UniversityCanberraACT 0200Australia

An efficient green protocol is described for the preparation of highly functionalized piperidines via a one-pot five-component reaction between aromatic aldehydes,anilines andβ-ketoesters in the presence of oxalic acid dihydrate as catalyst in ethanol at ambient *** structure as well as the relative stereochemistry of these compounds was confirmed by single X-ray crystallographic analysis.

关键词： Piperidine Heterocycle Homogeneous catalyst Oxalic acid dihydrate Multi-component reaction

An efficient method for synthesis of organophosphorus compounds in aqueous media

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chinese chemical Letters 2009年第10期20卷 1175-1178页

作者： Reza Heydari malek Taher Maghsoodlou Razieh Nejat Yami Department of chemistry The University of Sistan and BaluchestanP.O.Box 98135-674 ZahedanIran

A convenient and facile one-pot synthesis of stable phosphorus ylides and 1,4-diionic organophosphorus compounds is reported by the reaction of triphenylphosphine, dialkylacetylenedicarboxylates and N-H, c-H or S-H acids in the presence of polyethyleneglycol （PEG）, β-cyclodextrin （β-cD）, glycerine （Gly） or ethyleneglycol （EG） in water. This methodology is of interest due to the use of water as a solvent, thus minimizing the cost operational hazards, and environmental pollution.

关键词： Water Triphenylphosphine Acetylenic esters Stable phosphorus ylides Polyethyleneglycol β-cyclodextrin Glycerine Ethyleneglycol