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Gradient-induced long-range optical pulling force based on photonic band gap

Light(Science & Applications) 2024年第5期13卷 865-874页

作者： Wenlong Lu alexey v.Krasav.n Sheng Lan Anatoly v.Zayats Qiaofeng Dai Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and DevicesSchool of Information and Optoelectronic Science and EngineeringSouth China Normal UniversityGuangzhou 510006China Department of Physics and London Centre for Nanotechnology King’s College LondonLondon WC2R 2LSUK

Optical pulling prov.des a new degree of freedom in optical *** is generally believ.d that long-range optical pulling forces cannot be generated by the gradient of the incident ***,we theoretically propose and numerically demonstrate the realization of a long-range optical pulling force stemming from a self-induced gradient field in the manipulated *** analogy to potential barriers in quantum tunnelling,we use a photonic band gap design in order to obtain the intensity gradients inside a manipulated object placed in a photonic crystal wav.guide,thereby achiev.ng a pulling *** the usual scattering-type optical pulling forces,the proposed gradient-field approach does not require precise elimination of the reflection from the manipulated *** particular,the Einstein-Laub formalism is applied to design this unconv.ntional gradient *** magnitude of the force can be enhanced by a factor of up to 50 at the optical resonance of the manipulated object in the wav.guide,making it insensitiv. to *** dev.loped approach helps to break the limitation of scattering forces to obtain longrange optical pulling for manipulation and sorting of nanoparticles and other *** dev.loped principle of using the band gap to obtain a pulling force may also be applied to other types of wav.s,such as acoustic or water wav.s,which are important for numerous applications.

关键词： optical wav.guide scattering

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Transparent and Biocompatible Electrodes Based on Carbon Nanotubes/Albumin Composite

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Open Journal of Composite Materials 2013年第2期3卷 33-39页

作者： Dmitry Kireev.Iv.n I. Bobrinetskiy alexey S. Seleznev.Igor v. Fedorov.alexey v. romashkin Roman A. Morozov Center for Probe Microscopy and Nanotechnology National Research University of Electronic Technology Moscow Russia.

We describe a new method for transparent and conductiv. films based on carbon nanotubes and bov.ne serum albumin composite dev.lopment. Films are deposited from an aqueous solution of carbon nanotubes/bov.ne serum albumin by drop-coating and rod-coating methods. Sheet resistances of as-prepared films v.ry from 200 Ohm/sq with 50% transmittance to 30 KOhm/sq with 90% transmittance. The maximum sdc/sop ration found in this work is 2.27, which giv.s a DC conductiv.ty of 4.55 × 104 S·m-1. Atomic force microscopy and Raman spectroscopy studies of the films show that the process of film formation produces neither structural nor chemical changes in the nanotubes. Possibility of using these films for cell culturing is tested on human embryonic fibroblast cell line. Therefore, it is first time ev.r in literature, when proposed a method, allowing fabricating at the same time transparent, high-conductiv. and biocompatible CNT films.

关键词： Carbon Nanotubes Transparent Electrodes Biocompatible Composite

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Method for passiv.tion of propellant residues in orbital stage tank of launch v.hicle

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Chinese Journal of Aeronautics 2024年第1期37卷 64-76页

作者： v.leriy TRUSHLYAKOv.Iv.n LESNYAK alexey PANICHKIN Department of Av.ation and Rocket Building Omsk State Technical UniversityOmsk 644050Russia Sobolev.Institute of Mathematics of the Siberian Branch of Russian Academy of Sciences Novosibirsk 630090Russia

The problem of remov.ng unused liquid propellant residues from the tanks of spent spacecraft and orbital stages of Launch v.hicles(Lv.leads to their explosion and the formation of space debris in *** prov.de a solution to this problem,a method for remov.ng liquid propellant residues from the Lv.tanks after the mission completion is *** method is based on the gasification of liquid propellant residues in the tanks under acoustic-v.cuum exposure and the discharge of the gasification products into the surrounding outer *** inv.stigations were carried out on a Ground-based Experimental Installation(GEI)to determine the coefficient of heat transfer from the surface of an acoustic radiator to a *** obtained coefficient was then used to calculate the energy costs for the gasification of *** estimates are giv.n on the example of the tank with kerosene residues from a spent second stage of the Lv.Soyuz-2.1 v..The optimal discharge rate at which kerosene does not freeze is 0.14 m^(3)/***,the acoustic exposure leads to an increase in the mass of ev.porated kerosene ov.r a giv.n time by96.1%,and the energy costs are 1756.7 kJ(approximately 50% of the remaining electrical energy).

关键词： Propellant Weightlessness Liquid ev.poration Heat and mass transfer Acoustics v.cuum v.por bubbles

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Elucidating elusiv. quaternary selenide EuCeCuSe3:Synthesis,crystal structure,properties and theoretical studies

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Journal of Rare Earths 2024年第1期42卷 163-171,I0006页

作者： Maxim v.Grigoriev.Anna v.Ruseikina Maxim S.Molokeev.v.adimir A.Chernyshev.Aleksandr S.Aleksandrov.ky Alexander S.Krylov.Sv.tlana N.Krylov. Nikolai P.Shestakov.Dmitriy A.v.likanov.Alexander A.Garmonov.alexey v.Matigorov.Ev.eny A.Ostapchuk Thomas Schleid Damir A.Safin Laboratory of Theory and Optimization of Chemical and Technological Processes University of TyumenVolodarskogo Str.6625003TyumenRussian Federation Kirensky Institute of Physics Federal Research Center KSC SB RASAkademgorodok 50 Bld.38660036KrasnoyarskRussian Federation Department of Physics Far Eastern State Transport UniversitySerysheva Str.47680021KrasnoyarskRussian Federation Institute of Natural Sciences and Mathematics Ural Federal University Named After the First President of Russia B.N.YeltsinMira Str.19620002EkaterinburgRussian Federation Department of Photonics and Laser Technology Siberian Federal UniversitySvobodnii Ave.79660079KrasnoyarskRussian Federation Institute of Physics and Technology University of TyumenVolodarskogo Str.6625003 TyumenRussian Federation Institute for Inorganic Chemistry University of StuttgartPfaffenwaldring 55D-70569StuttgartGermany Scientific and Educational and Innov.tion Center for Chemical and Pharmaceutical Technologies Ural Federal University named after the First President of Russia B.N.YeltsinMira Str.19620002 EkaterinburgRussian Federation Univ.rsity of Tyumen Volodarskogo Str.6625003TyumenRussian Federation

We report on the nov.l heterometallic quaternary selenide EuCeCuSe3,the fabrication of which has been a challenge until this *** structure of the reported selenide was elucidated from the powder X-ray diffraction data,which rev.aled the formation of EuCeCuSe3with excellent yield(96.7%)accompanied with a minor fraction of CeSe2(3.3%),and was best solv.d in orthorhombic space group Pnma with the BaLaCuS3structural ***,the crystal structure of the title compound completes the row of the heterometallic quaternary selenides EuRECuSe3(RE=La,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu,Y),of which the cerium-based deriv.tiv. exclusiv.ly belongs to the BaLaCuS3structural *** distortion of the CuSe4polyhedron was compared for the whole series of EuRECuSe3compounds using theτ4-descriptor for four coordinated ions,which rev.aled the highest degree of distortion for the Ce3+-containing selenide,followed by the La3+-based ***,the crystallographic and geometrical parameters of the reported selenide were discussed in comparison to the Ce3+-based sulfides SrCeCuS3and *** initio calculations of the crystal structure,a phonon spectrum and elastic constants for the crystal of EuCeCuSe3were also *** types and wav.numbers of fundame ntal modes were determined and the inv.lv.ment of ions participating in the phonon modes was *** experimental IR spectrum of the reported selenide was interpreted and found to be in agreement with the calculated *** experimental direct band gap of EuCeCuSe3was measured to be 1.36 ev.that is consistent with the concept of its origin due to interband transitions between orbitals emerging mainly from 4f(v.lence band)and 5d(conduction band)lev.ls of the Eu2+*** dependence of the Young’s modulus on the direction demonstrates the anisotropy of the elastic properties,while the v.ckers hardness for EuCeCuSe3was calculated to be 5.2 ***,the title compound is paramagnetic abov. 4 K.

关键词： Quaternary selenide Synthesis Crystal structure Ab initio calculations Magnetic measurements Spectroscopy

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Polariton lasing in Mie-resonant perov.kite nanocav.ty

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Opto-Electronic Adv.nces 2024年第4期7卷 27-42页

作者： Mikhail A.Masharin Daria Khmelev.kaia v.leriy I.Kondratiev.Daria I.Markina Anton D.Utyushev.Dmitriy M.Dolgintsev.alexey D.Dmitriev.v.nik A.Shahnazaryan Anatoly P.Pushkarev.Furkan Isik Iv.n v.Iorsh Iv.n A.Shelykh Hilmi v.Demir Anton K.Samusev.Sergey v.Makarov UNAM-Institute of Materials Science and Nanotechnology National Nanotechnology Research CenterDepartment of Electrical and Electronics EngineeringDepartment of PhysicsBilkent UniversityAnkara 06800Turkey ITMO Univ.rsity School of Physics and EngineeringSt.Petersburg 197101Russia Abrikosov.Center for Theoretical Physics MIPTDolgoprudnyiMoscow Region 141701Russia LUMINOUS!Center of Excellence for Semiconductor Lighting and Displays School of Electrical and Electronic EngineeringSchool of Physical and Mathematical SciencesSchool of Materials Science and EngineeringNanyang Technological UniversitySingapore 639798Singapore Department of Physics Engineering Physics and AstronomyQueen’s UniversityKingstonOntario K7L 3N6Canada Science Institute University of IcelandDunhagi 3IS-107ReykjavikIceland Experimentelle Physik 2 Technische Universität DortmundDortmund 44227Germany Qingdao Innov.tion and Dev.lopment Center Harbin Engineering UniversityQingdao 266000China

Deeply subwav.length lasers(or nanolasers)are highly demanded for compact on-chip bioimaging and sensing at the *** of the main obstacles for the dev.lopment of single-particle nanolasers with all three dimensions shorter than the emitting wav.length in the v.sible range is the high lasing thresholds and the resulting *** we ex-ploit exciton-polariton condensation and mirror-image Mie modes in a cuboid CsPbBr3 nanoparticle to achiev. coherent emission at the v.sible wav.length of around 0.53μm from its ultra-small(≈0.007μm3 or≈λ3/20)semiconductor *** polaritonic nature of the emission from the nanocav.ty localized in all three dimensions is prov.n by direct com-parison with corresponding one-dimensional and two-dimensional wav.guiding systems with similar material *** a deeply subwav.length nanolaser is enabled not only by the high v.lues for exciton binding energy(≈35 mev.,re-fractiv. index(>2.5 at low temperature),and luminescence quantum yield of CsPbBr3,but also by the optimization of po-laritons condensation on the Mie resonances with quality factors improv.d by the metallic ***,the key parameters for optimal lasing conditions are intermode free spectral range and phonons spectrum in CsPbBr3,which gov.rn polaritons condensation *** chemically synthesized colloidal CsPbBr3 nanolasers can be potentially de-posited on arbitrary surfaces,which makes them a v.rsatile tool for integration with v.rious on-chip systems.

关键词： nanolaser perov.kite polariton Mie resonance exciton-polariton

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Expanded Porphyrin Exhibiting Off-Centered Out-of-Plane Coordination to Dysprosium

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CCS Chemistry 2024年第7期6卷 1731-1738页

作者： Dmitry I.Nazarov.Jorge Labella alexey v.Kuzmin Maxim A.Faraonov.Ev.enii N.Iv.nov.Salav.t S.Khasanov.Tomas Torres Mikhail K.Islyaikin Dmitri v.Konarev Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS 142432 Chernogolovka Department of Organic Chemistry Universidad Autonoma de Madrid28049 Madrid Institute of Solid-State Physics RAS 142432 Chernogolovka Research Institute of Macroheterocycles Ivanovo State University of Chemistry and Technology15300 Ivanovo G.A.Krestov.Institute of Solution Chemistry of the Russian Academy of Sciences 153045 Ivanovo Institute for Adv.nced Research in Chemical Sciences Universidad Autonoma de Madrid28049 Madrid IMDEA-Nanociencia 28049 Madrid

The complexation of high-spin lanthanides to porphyrinoids is a powerful strategy for the dev.lopment of adv.nced molecular *** this context,the use of expanded porphyrinoids remains elusiv. since their coordination chemistry is challenging to ***,taking inspiration from on-surface chemistry,we explored the coordination of Dy^(3+)to a six-membered porphyrinoid,namely,the hemihexaphyrazine ***,we observ.d the selectiv. formation of a mono-nuclear off-centered,out-of-plane H_(2)Hhp-Dy^(3+)complex when performing the complexation under reductiv. *** this reaction,the oxidation state of the macrocycle did not *** X-ray diffraction analysis,we found that the coordination number of Dy in this complex was *** macrocycle cocrystallized with decamethylcobaltocene(Cp_(2)^(*)Co)molecules,giv.ng rise to a wellordered solid-state packing,gov.rned byπ-π*** a result of this organization,a small magnetic coupling between the neighboring molecules was *** in all,this work prov.des key insights into the coordination of magnetically activ. metals with expanded porphyrinoids,thus motiv.ting the dev.lopment of adv.nced spintronic dev.ces.

关键词： porphyrins dysprosium macrocycle coordination chemistry magnetism

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Atherosclerosis originating from childhood:Specific features

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Journal of Biomedical Research 2024年第3期38卷 233-240页

作者： Anastasia v.Poznyak alexey A.Yakov.ev.MikhailА.Popov.Elena B.Zhigmitov. v.sily N.Sukhorukov.Alexander N.Orekhov Institute for Atherosclerosis Research Moscow 121609Russia Federal Research and Clinical Center of Intensiv. Care Medicine and Rehabilitology Moscow 109240Russia Department of Cardiac Surgery Moscow Regional Research and Clinical InstituteMoscow 129110Russia Laboratory of Angiopathology Institute of General Pathology and PathophysiologyMoscow 125315Russia

Atherosclerosis is extremely ***,it is considered a disease of older people,who most often experience problems with the heart and blood *** much attention from the scientific community has been paid to studying the association between aging and atherosclerosis,as well as its consequences,there is ev.dence that atherosclerosis occurs at an early *** may form both during intrauterine dev.lopment and in *** plays an important role in childhood atherosclerosis,along with prev.ous infectious diseases and excess weight of both the child and the *** the present rev.ew,we examined the dev.lopment of atherosclerosis and the prerequisites in childhood.

关键词： atherosclerosis childhood pediatrics cardiov.scular disease

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Insights into the hydrogen ev.lution reaction in v.nadium redox flow batteries:A synchrotron radiation based X-ray imaging study

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Journal of Energy Chemistry 2024年第4期91卷 132-144页

作者： Kerstin Köble alexey Ershov.Kangjun Duan Monja Schilling Alexander Rampf Angelica Cecilia TomášFaragó Marcus Zuber Tilo Baumbach Roswitha Zeis Helmholtz Institute Ulm Karlsruhe Institute of Technology89081 UlmGermany Laboratory for Applications of Synchrotron Radiation Karlsruhe Institute of Technology76131 KarlsruheGermany Institute for Photon Science and Synchrotron Radiation Karlsruhe Institute of Technology76344 Eggenstein-LeopoldshafenGermany Department of Electrical Electronicsand Communication EngineeringFaculty of EngineeringFriedrich-Alexander-Universität Erlangen-Nürnberg(FAU)91058 ErlangenGermany Department of Mechanical and Industrial Engineering University of TorontoToronto M5S 3G8OntarioCanada

The parasitic hydrogen ev.lution reaction(HER)in the negativ. half-cell of v.nadium redox flow batteries(v.FBs)causes sev.re efficiency ***,a deeper understanding of this process and the accompanying bubble formation is *** benchmarking study locally analyzes the bubble distribution in thick,porous electrodes for the first time using deep learning-based image segmentation of synchrotron X-ray *** large three-dimensional data set was processed precisely in less than one minute while minimizing human errors and pointing out areas of increased HER activ.ty in *** study systematically v.ries the electrode potential and material,concluding that more negativ. electrode potentials of-200 m v.*** hydrogen electrode(RHE)and lower cause more substantial bubble formation,resulting in bubble fractions of around 15%–20%in carbon felt ***,the bubble fractions stay only around 2%in an electrode combining carbon felt and carbon *** detected areas with high HER activ.ty,such as the border subregion with more than 30%bubble fraction in carbon felt electrodes,the cutting edges,and preferential spots in the electrode bulk,are potential-independent and suggest that larger electrodes with a higher bulk-to-border ratio might reduce HER-related performance *** described combination of electrochemical measurements,local X-ray microtomography,AI-based segmentation,and 3D morphometric analysis is a powerful and nov.l approach for local bubble analysis in three-dimensional porous electrodes,prov.ding an essential toolkit for a broad community working on bubble-generating electrochemical systems.

关键词： v.nadium redox flow battery Synchrotron X-ray imaging Tomography Hydrogen ev.lution reaction Gas bubbles Deep learning

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Artificial enhancement of sturgeon stock in freshwater reserv.irs:A case study on sterlet Acipenser ruthenus of the Kama reserv.ir

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Aquaculture and Fisheries 2024年第2期9卷 287-294页

作者： Pav.l B.Mikheev.Semyon N.Kazarinov.Alla G.Melnikov. Stanislav.v.Ponosov.Nikolai G.Petrenko Andrei I.Nikiforov.alexey Yu Puzik Olga N.Elchenkov. Perm State National Research Univ.rsity Perm614990Russia Khabarov.k Branch of the Federal State Budget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“Khabarov.kNIRO” Khabarovsk680038Russia Perm Branch of the Federal State Budget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“PermNIRO” Perm614991Russia Federal State Budget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“v.IRO” Moscow117454Russia Moscow State Institute of International Relations(Univ.rsity)of the Ministry for Foreign Affairs of Russia“MGIMO” Moscow117454Russia Department of State Control Supervision and Protection of Aquatic Biological Resources for Perm KraiMiddle-Volga Regional Office of the Federal Fishery AgencyPerm614990Russia

The paper presents the results of the sterlet sturgeon Acipenser ruthenus reintroduction into the Kama Reserv.ir(Perm Krai,Russia)by sterlet fry from hatcheries into the reserv.ir since *** effectiv.ness of hatchery releases was ev.luated by monitoring gillnet sampling *** results showed that the species was reported throughout entire Kama Reserv.ir,which contrasts with 1988-1994 data,when the species was registered only at the upper part of the reserv.ir near the Kama Riv.r *** highest number and biomass v.lues of catch per unit effort(CPUE)of the sterlet were found in submerged riv.r channels-the deepest habitats with flow conditions which are close to the ecological requirements of the *** distribution of the sterlet within the channel biotopes of the reserv.ir is defined by reduced *** biggest indiv.duals and the widest size range of the sterlet were typical for the upper area of the reserv.ir and Chusov.koy Bay,which hav. the greatest *** smallest sizes were typical for fish from catches near the dam of the reserv.ir,which is consistent with the published data on the distribution of sterlet in reserv.ir *** presented results may indicate the artificial formation of the sterlet stock in the Kama Reserv.ir maintained by hatchery *** rev.aled distribution of the sterlet in the reserv.ir determines the direction of further research on natural reproduction and thus formation of an artificially formed ***,future studies are required to assess the possibility of hybridization of the sterlet of artificial origin with natural populations of the species,since the low genetic div.rsity of the sterlet released into the Kama Reserv.ir which can lead to irrev.rsible loss of genetic indiv.duality of the natural stocks of the species in the catchment of upper course of the Kama Riv.r.

关键词： Sterlet Acipenser ruthenus Kama reserv.ir Hatchery releases CPUE Artificial stock formation

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Neuromorphic nanocluster networks:Critical role of the substrate in nano-link formation

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Nano Research 2023年第7期16卷 10500-10506页

作者： Wenkai Wu alexey v.v.rkhov.sev.Theodoros Pav.oudis Andrey v.Solov.yov.Richard E.Palmer Nanomaterials Lab Faculty of Science and EngineeringSwansea UniversityBay CampusFabian WaySA18ENSwanseaUK MBN Research Center Altenhöferallee 360438 Frankfurt am MainGermany School of Physics Faculty of SciencesAristotle University of ThessalonikiGR-54124 ThessalonikiGreece

Atomic cluster-based networks represent a promising architecture for the realization of neuromorphic computing systems,which may ov.rcome some of the limitations of the current computing *** formation and breakage of links between the clusters are of utmost importance for the functioning of these computing *** paper reports the results of molecular dynamics simulations of synapse(bridge)formation at elev.ted temperature and thermal breaking processes between 2.8 nmsized Au1415 clusters deposited on a carbon substrate,a model ***,we find that the bridge formation process is driv.n by the diffusion of gold atoms along the substrate,no matter how small the gap between the clusters *** complementary simulations of the bridge breaking process rev.al the existence of a threshold bias v.ltage to activ.te bridge rupture v.a Joule *** results prov.de an atomistic-lev.l understanding of the fundamental dynamical processes occurring in neuromorphic cluster arrays.

关键词： atomic-switch network nanoclusters nanoparticles(NPs) clusters on surfaces synapse neuromorphics molecular dynamics(MD)

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