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Label-free biosensing with singular-phaseenhanced lateral position shift based on atomically thin plasmonic nanomaterials

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Light(Science & Applications) 2024年第5期13卷 810-822页

作者： Shaodi Zhu Rodolphe Jaffiol Aurelian Crunteanu Cyrille vézy Sik-To Chan Wu Yuan Ho-Pui Ho Shuwen Zeng Light Nanomaterials&Nanotechnologies(L2n)CNRS-EMR 7004University of Technology of Troyes10000 TroyesFrance. department of Biomedical engineering The Chinese University of Hong KongShatinNew TerritoriesHong KongChina XLIM Research Institute UMR 7252 CNRS/University of Limoges123Avenue Albert ThomasLimogesFrance

Rapid plasmonic biosensing has attracted wide attention in early disease diagnosis and molecular biology ***,it was still challenging for conventional angle-interrogating plasmonic sensors to obtain higher sensitivity without secondary amplifying labels such as plasmonic *** address this issue,we developed a plasmonic biosensor based on the enhanced lateral position shift by phase *** singularity presents as a sudden phase retardation at the dark point of reflection from resonating plasmonic substrate,leading to a giant position shift on reflected ***,for the first time,the atomically thin layer of Ge2Sb2Te5(GST)on silver nanofilm was demonstrated as a novel phase-response-enhancing plasmonic *** GST layer was not only precisely engineered to singularize phase change but also served as a protective layer for active silver *** new configuration has achieved a record-breaking largest position shift of 439.3μm measured in calibration experiments with an ultra-high sensitivity of 1.72×10^(8)nm RIU−1(refractive index unit).The detection limit was determined to be 6.97×10^(−7)RIU with a 0.12μm position ***,a large figure of merit(fOM)of 4.54×10^(11)μm(RIU∙°)^(−1)was evaluated for such position shift interrogation,enabling the labelfree detection of trace amounts of *** targeted biosensing experiments,the optimized sensor has successfully detected small cytokine biomarkers(Tnf-αand IL-6)with the lowest concentration of 1×10^(−16)*** two molecules are the key proinflammatory cancer markers in clinical diagnosis,which cannot be directly screened by current clinical *** further validate the selectivity of our sensing systems,we also measured the affinity of integrin binding to arginylglycylaspartic acid(RGd)peptide(a key protein interaction in cell adhesion)with different Mn2+ion concentrations,ranging from 1 nM to 1 mM.

关键词： diagnosis protective silver

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Restoration of the focal parameters for an extreme-power laser pulse with ponderomotively scattered proton spectra by using a neural network algorithm

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Matter and Radiation at extremes 2023年第1期8卷 28-42页

作者： n.d.Bukharskii O.e.vais Ph.A.Korneev v.Yu.Bychenkov national Research nuclear University MePhI MoscowRussian Federation P.n.Lebedev Physical Institute MoscowRussian Federation Center for fundamental and Applied Research Dukhov Research Institute of Automatics(VNIIA)MoscowRussian Federation

A neural network-based approach is proposed both for reconstructing the focal spot intensity profile and for estimating the peak intensity of a high-power tightly focused laser pulse using the angular energy distributions of protons accelerated by the pulse from rarefied *** these purposes,we use a convolutional neural network *** and testing datasets are calculated using the test particle method,with the laser description in the form of Stratton-Chu integrals,which model laser pulses focused by an off-axis parabolic mirror down to the diffraction *** demonstrate the power and robustness of this method,we discuss the reconstruction of axially symmetric intensity profiles for laser pulses with intensities and focal diameters in the ranges of 10^(21)-10^(23) W cm^(−2) and ~(1-4)λ,*** approach has prospects for implementation at higher intensities and with asymmetric laser beams,and it can provide a valuable diagnostic method for emerging extremely intense laser facilities.

关键词： network pulse power

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Hybrid bimetallic cluster ZrO2/Rh@n,S co-doped porous carbon nanosheets for efficient hydrogen evolution in acid electrolytes

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Tungsten 2024年第4期6卷 657-662页

作者： Xin-Yi Zhang Igor v.Zatovsky Jun-Ming Cao Xing-Long Wu faculty of Chemistry Northeast Normal University f.d.Ovcharenko Institute of Biocolloidal Chemistry NAS Ukraine MOe Key Laboratory for Uv Light-emitting Materials and Technology Northeast Normal University

Acid hydrogen evolution reaction (HeR) is a critical energy conversion process,which is significantly important in hydrogen energy manufacturing and storage [1].Although the performance of noble metal platinum (Pt)-based catalysts in acidic HeR is well known,the challenges are high cost,limited reserves,poor stability,and susceptibility to toxic substances [2].Therefore,it is urgent to design and manufacture acidic HeR catalysts with high reactivity,high stability,and low cost.

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Influence of the safety factor profile on the particle and heat transport in the Globus-M spherical tokamak

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Plasma Science and Technology 2019年第11期21卷 1-6页

作者： A YU TeLnOvA G S KURSKIev e O KISeLev n n BAKHARev v K GUSev n A khrOMOv S YU Medvedev v B MIInAev I v MIROSHnIKOv M I PATROv Yu v PeTROv n v SAKHAROv A d SLAdKOMedOvA P B SHCHeGOLev v v SOLOKHA v A TOKARev S YU TOLSTYAKOv e A TUKHMenevA Ioffe Institute Saint-Petersburg 194021Russia Keldysh Institute Russian Academy of SciencesMoscow 125047Russia nRC'Kurchatov Institute’ Moscow 123098Russia

The advanced tokamak scenario is a promising operation scenario for ITeR and fusion neutron *** this scenario the minimum value of the safety factor in the center of the plasma exceeds *** the compact spherical tokamak Globus-M,the formation of such conditions is possible with neutral beam injection at the current ramp-up *** to the slower diffusion of current inside the plasma,a zone is formed with reduced heat and particle transport across the magnetic field,which affects the temperature and density profiles of the *** leads to the peaked density profile formation and improvement of the energy confinement *** achieve a high fraction of the bootstrap current,it is necessary to increase the plasma *** the same time,the maximum allowable pressure is limited to the normalized beta limit.

关键词： advanced tokamak mode transport analysis internal transport barriers

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Challenging the term symbiosis in plant-microbe associations to create an understanding across sciences

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Journal of Integrative Plant Biology 2024年第1期66卷 7-11页

作者： Anna neubauer daniela Aros‐Mualin vicente Mariscal Péter Szövényi department of Systematic and evolutionary Botany University of ZurichZurich 8008Switzerland Zurich‐Basel Plant Science Center Zurich 8092Switzerland Instituto de Bioquímica vegetal y fotosíntesis CSIC y Universidad de SevillaSevilla 41092Spain

THe IMPORTAnCe Of WeLL defIned TeRMInOLOGY,effective communication across fields and disciplines relies on well defined *** use of accurate definitions has been advocated by scientists across various disciplines(PySek... 详细信息

关键词： terminology definition fields

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Root Sprouts of domesticated Phaseolus coccineus L. Overwinter Plants and the environment at Its Collection Sites

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Open Journal of ecology 2024年第5期14卷 508-521页

作者： Ma. Luisa Patricia vargas-vázquez Jorge Alberto Acosta-Gallegos fabián Islas-Gutiérrez enrique Buendía-Rodríguez Campo experimental valle de Mé xico Instituto Nacional de Investigaciones Forestales Agr&#237colas y Pecuarias Texcoco Mexico Campo experimental Bají o Instituto Nacional de Investigaciones Forestales Agr&#237colas y Pecuarias Guanajuato M&#233xico

Buds emerge from the roots of domesticated runner bean plants (Phaseolus coccineus L.) as sprouts and give the crop its persistence. This particularity of the species seems to be associated with the environment where the species was cultivated during long time. data on regrowth traits were recorded on 70 accessions of domesticated P. coccineus after overwintering at a site in the central highlands of Mexico. The characteristics recorded included fresh weight of vegetative regrowth, root length, root crown diameter, and diameter of the main root. Most accessions that sprout the following spring, after the grain harvest of the previous year, come from temperate and semi-cold sites with cambisol and andosol soils in mixed Quercus pine forest and high mountain fir trees. Those that do not sprout are from sites of semiarid temperate climate, haplic phaeozem soil in shrub grasslands with deciduous broadleaved trees, and semiwarm subhumid climate, eutrophic regosol soil in deciduous broadleaved forest. Two types of roots were differentiated: branched and thickened taproots, also associated with a different climate, and the type of soil of the collection sites.

关键词： P. coccineus distribution vegetation-environment Interactions drought-Alternative Species Root-Regrowth

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Review of nonlinear effects under TW-power PS pulses amplification in GARPUn-MTW Ti:sapphire-Krf laser facility

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Matter and Radiation at extremes 2020年第4期5卷 63-77页

作者： v.d.Zvorykin A.v.Shutov n.n.Ustinovskii Lebedev Physical Institute of RAS Leninskiy Pr.53Moscow 119991Russia

Investigations were carried out at the multistage hybrid Ti:sapphire–Krf laser facility GARPUn-MTW on the direct amplification of TW-power picosecondUvlaser pulses in e-beam-pumped Krf amplifiers and propagation along a 100mlaboratory air *** experiments identified the main nonlinear effects and their impact on the amplification efficiency,amplifier optics degradation,beam quality and focusability,and the evolution of radiation *** research was performed towards an implementation of the shock-ignition concept of inertial-confinement fusion using krypton fluoride laser drivers.

关键词： Krf laser power

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The Investigation of K Shell X-Ray fluorescence Parameters for Sulphur Atom in different 1,2,4-Triazoles

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光谱学与光谱分析 2017年第9期37卷 2961-2965页

作者： n.Kup Aylikci Y.Unver v.Aylikci d.Unluer e.dugdu energy Systems engineering Faculty of Engineering and Natural SciencesIskenderun Technical University 31600HatayTurkey department of Chemistry Faculty of Arts and SciencesKaradeniz Technical University 61080TrabzonTurkey Metallurgical and Materials engineering Faculty of Engineering and Natural SciencesIskenderun Technical University 31200HatayTurkey

The measurement of K shell fluorescence parameters is an easy and practical way to investigate the electronic structures of elements in alloys,compounds or *** the number of valence electrons will change the screening effect,the measured parameters will be affected from the *** this study,the measured parameters were investigated for sulphur element according to the number of CH_2 *** the experimental measurements,the samples were excited by 59.5kevγrays from a 241 Am annular radioactive *** emitted K X-rays from the samples were counted by ab Ultra-LeGe detector with a resolution of 150 ev at 5.9kev.

关键词：波长解调边缘滤波法干涉型光纤传感器啁啾光栅

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Ion Channel dysregulation following Intracerebral Hemorrhage

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neuroscience Bulletin 2024年第3期40卷 401-414页

作者： Xiangyu Zhang Yan Zhang Qiuyang Su Yang Liu Zhe Li v.Wee Yong Mengzhou Xue department of Cerebrovascular diseases The Second Afliated Hospital of Zhengzhou UniversityZhengzhou 450000China Academy of Medical Science Zhengzhou UniversityZhengzhou 450000China Hotchkiss Brain Institute and department of Clinical neurosciences University of CalgaryCalgaryAB T2N 1N4Canada

Injury to the brain after intracerebral hemorrhage(ICH)results from numerous complex cellular *** present,effective therapy for ICH is limited and a better understanding of the mechanisms of brain injury is necessary to improve *** is increasing evidence that ion channel dysregulation occurs at multiple stages in primary and secondary brain injury following *** channels such as TWIK-related K+channel 1,sulfonylurea 1 transient receptor potential melastatin 4 and glutamate-gated channels affect ion homeostasis in *** in turn participate in the formation of brain edema,disruption of the blood-brain barrier,and the generation of *** this review,we summarize the interaction between ions and ion channels,the effects of ion channel dysregulation,and we discuss some therapeutics based on ion-channel modulation following ICH.

关键词： Intracerebral hemorrhage Ion dyshomeostasis Sulfonylurea 1 transient receptor potential melastatin 4 TWIK-related K+channel 1 n-methyl-daspartate receptor Transient receptor potential vanilloid 4

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Peculiarities of ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl_(2) and feCl_(2)

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Chinese Journal of Polymer Science 2024年第4期42卷 492-500页

作者： Laura A.Rishina Yury v.Kissin Svetlana S.Lalayan Artem A.Antonov vadim G.Krasheninnikov Alexander A.Gulin n.n.Semenov federal Research Center for Chemical Physics Russian Academy of Sciences4 Kosygin St.Moscow119991Russia department of Chemistry and Chemical Biology RutgersThe State University of New Jersey123 Bevier Rd.PiscatawayNJ08854USA Boreskov Institute of Catalysis Russian Academy of Sciences5 Lavrentieva Prosp.Novosibirsk630090Russia

The article describes ethylene polymerization reactions with transition metal catalysts based on complexes of CoCl_(2) and feCl_(2) with an n,n,n-tridentate ligand 2,6-bis[1-(2,6-dimethylphenylimino)ethyl]pyridine. The complexes are converted into polymerization catalysts by reacting them either with polymethylalumoxane (MAO) or with a combination of Al(C2H5)2Cl and Mg(C4H9)2 at an [Al]:[Mg] ratio of ~3. Both MAO-activated complexes readily polymerize ethylene at 35 ℃ with the formation of linear, low molecular weight polymers with a narrow molecular weight distribution. The same complexes, when activated with the Al(C2H5)2Cl-Mg(C4H9)2 combination, form multi-center catalysts and generate polyethylenes with a broad molecular weight distribution.

关键词： ethylene polymerization Bis(imino)pyridyl complexes of CoCl_(2)and feCl_(2) Molecular-weight distribution Polymer chain structure

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