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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

Elbow Dislocation in Children: About Two Cases and Review of the Literature

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Open Journal of Pediatrics 2024年第2期14卷 218-226页

作者： Nyanit Bob Dorcas Atangana Cédric Paterson Mantho Fopa Pauline Kouna TsalaIrène Nadine Mvouni Bob Thérèse Raissa Bekima King Francis Ateaze Chrisantus Dikongue Diwondi Audrey Ndongo Réné Akoa Manga Ismael Evoni Molo Tatiana Choupo Guetchuin Stéphane Handy Eone Daniel Department of Surgery and Specialties Faculty of Medecine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon Infant Surgery Department of Yaounde Central Hospital Yaoundé Cameroon Faculty of Medecine and Pharmaceutical Sciences of Douala Douala Cameroon troyes Hospital Center Troyes France Vire Normandie Hospital Center Normandie France Traumatology Department of Yaounde Central Hospital Yaoundé Cameroon

Background: Elbow dislocations in pediatric patients are rare injuries. This is a therapeutic emergency because a delay in treatment can have disastrous consequences on the functional level of the upper limb. Objective: To present the management of elbow dislocation in children in cases of limited resources. Presentation of the Cases: These were 2 older male children aged 7 and 9 years old, admitted to the emergency room for painful functional impotence of the right elbow after a fall and landing on the right hand. Clinical and radiological examinations were in favor of posterior elbow dislocations. The reductions were carried out under sedation and immobilization in Jersey. According to Robert’s criteria, the functional result was excellent in both patients. Conclusion: Emergency reduction and immobilization whatever the means ensure an excellent functional prognosis even in cases of limited resources.

关键词： Elbow Dislocation Child Diagnosis Treatment Limited Resources

Compressive behavior and energy absorption of metal porous polymer composite with interpenetrating network structure

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中国有色金属学会会刊：英文版 2006年第B2期16卷 439-443页

作者： LIU Yu GONG Xiao-lu Institut Charles Delaunay CNRS FRE 2848 LASMIS UTT 12 rue Marie Curie BP 2060 10010 Troyes France

Interpenetrating phase composites (IPCs) are a new class of composite materials with improved combinations of mechanical and physical properties. This study was performed on a new type of IPC called metal porous polymer composite (MPPC) with an interpenetrating network structure. Aluminum-polypropylene (AI-PE) and Aluminum-epoxy resin (Al-Ep) composites were produced by infiltrating the polymer in the aluminum foam. The composite microstructures were characterized using SEM observation. The compressive behavior and energy absorption characteristics of MPPC were investigated and compared with the aluminum foams. The compressive modulus of composite was compared with the VOIGT-REUSS bounds and HASHIN-SHTRIKMAN (H-S) bounds models. The experimental modulus of compressive tests falls well within the theoretical models.

关键词：金属多孔聚合物复合物互穿网络结构压缩行为能量吸收 MPPC复合物

Thermal comfort of Frail People under dynamic and non-uniform thermal environments using a thermal manikin with thermoregulatory control:An experimental study

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Energy and Built Environment 2023年第4期4卷 477-491页

作者： Zoubayre El akili Youcef Bouzidi Abdelatif Merabtine Guillaume Polidori Julien Kauffmann Interdisciplinary research on Society-Technology-Environment interactions.University of Technology of troyes TroyesFrance EPF School of Engineering.Rosières-Prés-troyes France MATIM Faculty of Exact and Natural Sciences.University of Reims Champagne Ardenne.ReimsFrance

The thermal comfort of frail people has to be considered carefully,mainly because of the high thermal sensitivity of this population and the negative influences that unsatisfactory thermal conditions have on their *** existing thermal comfort works have been conducted under steady-state,uniform thermal environments,with far fewer being performed in dynamic and non-uniform thermal environments,and even less for frail *** study aimed at assessing the thermal responses of frail people under transient and non-uniform thermal environments,using a thermal manikin and a climatic test *** responses were investigated and discussed in both *** analysis of variance showed a significant difference in thermal comfort and thermal sensation between females and males over time,under hot *** cold exposure,results showed a significant difference in thermal sensation between females and males over time,but no significant difference was observed in term of thermal *** revealed also significant differences in the dynamic thermal sensation between the sexes under cold exposure,while results confirmed that there is no significant difference in the dynamic thermal sensation between sexes under hot exposure.

关键词： Building Energy conservation Thermal comfort Thermal sensation Thermal manikin

Advanced hybrid plasmonic nano-emitters using smart photopolymer

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Photonics Research 2022年第7期10卷 1552-1566页

作者： DANDAN GE ALI ISSA SAFI JRADI CHRISTOPHE COUTEAU SYLVIE MARGUET RENAUD BACHELOT Light NanomaterialsNanotechnologies(L2n)LaboratoryCNRS EMR 7004Universitéde Technologie de Troyes12 rue Marie Curie10004Troyes CedexFrance UniversitéParis Saclay CEACNRSNIMBEF-91191Gif sur YvetteFrance

The integration of nano-emitters into plasmonic devices with spatial control and nanometer precision has become a great *** this paper,we report on the use of a smart polymer to selectively immobilize nano-emitters on specific preselected sites of gold nanocubes(GNCs).The cunning use of the polymer is ***,it records both the selected site and the future emitters-GNC distance through plasmon-assisted ***,because the polymer is chemically functionalized,it makes it possible to attach the nano-emitters right at the preselected polymerized sites,which subsequently recognize the nano-emitters to be *** the resulting active medium is a spatial memory of specific plasmonic modes,it is anisotropic,making the hybrid nanosources sensitive to light *** ability to adjust their statistical average lifetime by controlling the thickness of the nanopolymer is demonstrated on two kinds of nano-emitters coupled to GNCs:doped polystyrene nanospheres and semiconductor colloidal quantum dots.

关键词： polymer plasmon attached

Numerical Methodology for Metal Forming Processes Using Elastoplastic Model with Damage Occurrence

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Journal of Materials Science & Technology 2006年第2期22卷 279-283页

作者： A.Cherouat H.Borouchaki K.Saanouni P.Laug LASMIS-CNRS FRE 2719 University of Technology of troyes BP 2060-10010TroyesFrance LASMIS-CNRS FRE 2719 University of Technology of troyes BP 2060-10010Troyes France LASMIS-CNRS FRE 2719 University of Technology of troyes BP 2060-10010 Troyes France INRIA Rocquencourt BP 105-78153 Le ChesnayFrance

Ductile damage often occurs during metal forming processes due to the large thermo-elasto （visco） plastic flow Iocalisation. This paper presents a numerical methodology, which aims to virtually improve any metal forming processes. The methodology is based on elastoplastic constitutive equations accounting for nonlinear mixed isotropic and kinematic hardening strongly coupled with isotropic ductile damage. An adaptive remeshing scheme based on geometrical and physical error estimates including a kill element procedure is used. Some numerical results are presented to show the capability of the model to predict the damage initiation and growth during the metal forming processes.

关键词： Finite elastoplasticity Ductile damage Error estimation Adaptive remeshing Metal forming processes

ON IMPROVING AN INTEGRATED INVENTORY MODEL FOR A SINGLE VENDOR AND MULTIPLE BUYERS WITH A RELAXED MATERIAL ORDERING CYCLE POLICY

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Journal of Systems Science and Systems Engineering 2006年第3期15卷 298-313页

作者： Yugang YU Feng CHU Haoxun CHEN FRE CNRS 2732 ISTIT-OSI University of Technology of Troyes 10010 Troyes France

In this paper, we propose a new model for improving the lot size obtained with the model of Woo, Hsu, and Wu （2001） proposed in their paper ＂An integrated inventory model for a single vendor and multiple buyers with ordering cost reduction＂（Int. J. Production Economics 73 203-215）. The new model can provide a lower or equal joint total cost as compared to Woo, Hsu, and Wu＇s model due to the relaxation of their integral multiple material ordering cycle policy to a fractional-integral multiple material ordering cycle policy. The proposed model is analyzed and an algorithm for calculating the optimal lot size of the model is developed. A numerical study based on the example used by Woo, Hsu, and Wu is presented.

关键词： Inventory integrated model raw materials single vendor multiple buyers

A Modified Kelvin Model for Thermal Performance Simulation of High Mechanical Property Open-Cell Metal Foams

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Journal of Materials Science and Chemical Engineering 2015年第7期3卷 113-118页

作者： Chuan Zhang Feng Zhu Houssem Badreddine Xiaolu Gong LASMIS Charles Delaunay Institute University of Technology of Troyes (UTT) UMR CNRS 6281 Troyes France

This paper proposes a modified Kelvin model for high mechanical property open-cell metal foams and investigates its application in thermal simulations. The thermal conductivity is simulated based on the steady state method and the results are consistent with experimental values. The melting process of phase change materials (PCMs) in Kelvin model and its modified model is numerically investigated under a temperature constant heat resource. By detecting the temperature variations, it shows that the metal foam greatly improves the heat transfer in energy storage systems. Besides, the comparison of the melting process in two foam models indicates that the systems based on high mechanical property metal foams have a shorter melting time. The melting process of paraffin in modified Kelvin metal foam models with three different porosities (65%, 70% and 75%) are numerically analyzed and compared.

关键词： Simulation Metal Foam Phase Change Materials (PCMs) Melting Heat Transfer

ResLNet:deep residual LSTM network with longer input for action recognition

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Frontiers of Computer Science 2022年第6期16卷 41-49页

作者： Tian WANG Jiakun LI Huai-Ning WU Ce LI Hichem SNOUSSI Yang WU Institute of Artificial Intelligence Beihang UniversityBeijing100191China School of Automation Science and Electrical Engineering Beihang UniversityBeijing100191China College of Electrical and Information Engineering Lanzhou University of TechnologyLanzhou730050China Institute Charles Delaunay-LM2S FRE CNRS 2019 University of Technology of TroyesTroyes10010France Institute for Research Initiatives Nara Institute of Science and TechnologyNara630-0192Japan

Action recognition is an important research topic in video analysis that remains very *** recognition relies on learning a good representation of both spatial information(for appearance)and temporal information(for motion).These two kinds of information are highly correlated but have quite different properties,leading to unsatisfying results of both connecting independent models(e.g.,CNN-LSTM)and direct unbiased co-modeling(e.g.,3DCNN).Besides,a long-lasting tradition on this task with deep learning models is to just use 8 or 16 consecutive frames as input,making it hard to extract discriminative motion *** this work,we propose a novel network structure called ResLNet(Deep Residual LSTM network),which can take longer inputs(e.g.,of 64 frames)and have convolutions collaborate with LSTM more effectively under the residual structure to learn better spatial-temporal representations than ever without the cost of extra computations with the proposed embedded variable stride *** superiority of this proposal and its ablation study are shown on the three most popular benchmark datasets:Kinetics,HMDB51,and *** proposed network could be adopted for various features,such as RGB and optical *** to the limitation of the computation power of our experiment equipment and the real-time requirement,the proposed network is tested on the RGB only and shows great performance.

关键词： action recognition deep learning neural network