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Analysis of metabolic alterations in Arabidopsis following changes in the carbon dioxide and oxygen partial pressures

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Journal of integrative Plant Biology 2014年第9期56卷 941-959页

作者： Alexandra florian stefan Timm Zoran Nikoloski Takayuki Tohge Hermann Bauwe Wagner L.Araujo Alisdair R.Fernie Max Planck institute for Molecular Plant Physiology Department of Plant Physiology University of Rostock Max-Planck Partner group at the Departament of Plant Biology Federal University of Vicosa

As sessile organisms,plants are subject to a multitude of environmental variations including several which directly affect their interaction with the *** the indiscriminant nature of Rubisco,the relative rates of photosynthesis and photorespiration are known to be responsive to changes in gas ***,comprehensive profiling methods have not yet been applied in order to characterize the wider consequences of these changes on primary metabolism in ***,although transcriptional profiling has revealed that a subset of photorespiratory enzymes are co-expressed,whether transcriptional responses play a role in short-term responses to atmospheric compositional changes remains *** address these questions,plants Arabidopsis thaliana（Arabidopsis） ecotype Columbia（Col-O） grown under normal air conditions were transferred to different CO_2 and O_2 concentrations and characterized at the physiological,molecular,and metabolic levels following this *** results reveal alterations in the components,which are directly involved in,or supporting,photorespiration,including transcripts and metabolite *** results further highlight that the majority of the regulation of these pathways is not mediated at the level of transcription and that the photorespiratory pathway is essential also in conditions in which flux through the pathway is minimized,yet suggest that flux through this pathway is not mediated at the level of transcription.

关键词： Carbon dioxide partial pressures gene expression metabolic profiling oxygen partial pressures

Gradient-crosslinked hydrogel microdome pattern for multilevel chromatic encryption

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science China Chemistry 2023年第12期66卷 3567-3575页

作者： Jing Xue Yu Wang Tailong Zhang Kaixuan Li florian Vogelbacher Yu Zhang Xiaoyu Hou Zixin Zhu Yang Tian Yanlin song Mingzhu Li Key Laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190China Key Laboratory of Bionic Materials and interface science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China school of Materials science and Engineering Zhengzhou UniversityZhengzhou 450001China Beijing Key Laboratory for Optical Materials and Photonic Devices Department of ChemistryCapital Normal UniversityBeijing 100048China

in the realm of modern cryptography and anti-counterfeiting,innovative approaches are crucial to encode sensitive information *** responsive structural colors have garnered significant interest due to their feature-rich spectra and high sensitivity to external ***,high costs and complex processing involved in integrating the various delicate microstructures have impeded their widespread *** this study,we present a straightforward multilevel chromatic encryption scheme utilizing direct-writing gradient-crosslinked *** solvent-responsive structural color of each microdome,arising from the synergistic effect of total internal reflections and interference,is adjusted independently across the entire visible *** microdome functions as a signal recording unit,enabling multilevel color variations through a solventdependent development *** approach facilitates the encoding of enhanced information into a single *** demonstrate the efficacy of our method for advanced applications,we have prepared a collection of solvent-dependent multilevel codes for algorithm cryptography,showcasing its potential for high-level anti-counterfeiting and high-density optical data storage.

关键词： oxygen inhibition structural color direct writing encryption storage capacity

竹炭湿物性测试及其对外墙热湿性能影响的模拟

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建筑材料学报 2018年第3期21卷 457-464页

作者：黄祖坚孙一民 MUssO florian 华南理工大学建筑学院广东广州510640 华南理工大学亚热带建筑科学国家重点实验室广东广州510640 慕尼黑工业大学建筑构造与材料教研所慕尼黑80333

为探索调湿性竹炭(BC)作为建筑填充材料对建筑构件和围护空间热湿性能的影响,测试了其平衡含水率(u)和蒸汽渗透系数(δ);在WUFi Plus软件中选择3组气候区的6个代表城市,对18组外墙进行了全年热湿性能模拟.湿物性测试结果表明:在测试范... 详细信息

为探索调湿性竹炭(BC)作为建筑填充材料对建筑构件和围护空间热湿性能的影响,测试了其平衡含水率(u)和蒸汽渗透系数(δ);在WUFi Plus软件中选择3组气候区的6个代表城市,对18组外墙进行了全年热湿性能模拟.湿物性测试结果表明:在测试范围内与3种竹板相比,BC调湿容量在相对湿度为33.4%~85.4%时得到扩大;BC蒸汽渗透系数为9.32×10-11 kg/(m·s·Pa),是竹板的10.0~213.2倍.建筑构造和围护空间热湿性能模拟结果显示:BC对构造填充层含湿量起显著稳定作用,并减小了外墙热湿流量和构件内表面温度振幅;BC有助于减小室内空气温湿度振幅,缩短暖通空调系统(HVAC)开启时间,降低围护空间供暖和制冷量,但对加湿和除湿量影响不明显.

关键词：竹炭湿物性外墙热湿性能

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湿物性对竹原纤维建筑填充材热工性能的影响

建筑材料学报 2018年第2期21卷 253-259页

为探索作为建筑填充材的竹原纤维(BF)热湿物理性质及其相互作用规律,采用平衡含水率u值测试、吸放湿速率U值测试和导热系数λ值测试,以及蓄热系数s值和热惰性指标D值的推算,进行了竹原纤维热湿关联性研究.结果表明:u,U和λ值与环境相对... 详细信息

为探索作为建筑填充材的竹原纤维(BF)热湿物理性质及其相互作用规律,采用平衡含水率u值测试、吸放湿速率U值测试和导热系数λ值测试,以及蓄热系数s值和热惰性指标D值的推算,进行了竹原纤维热湿关联性研究.结果表明:u,U和λ值与环境相对湿度φ值之间存在指数函数关系,可以采用Y=a·e^(b·φ)+c的一般方程进行描述;在测试范围内BF的等温吸放湿u-φ曲线在φ为85.4%~96.3%阶段、吸放湿速率U-φ曲线在φ为75%~95%阶段快速增大;填充密度ρ为70~170kg/m^3的BF干燥λ值为0.042 3~0.046 5W/(m·K),潮湿λ值随环境相对湿度φ值的提高而显著增大,且增大速率与其自身填充密度呈正相关关系;增大u值和减小U值均有利于改善BF的热工性能,具体表现在增大u值可提高BF的s值和D值,而减小U值可大幅提高BF的热工稳定性.

关键词：竹原纤维平衡含水率吸放湿速率导热系数蓄热系数热惰性指标

Carbon Dynamics in Woody Biomass of Forest Ecosystem in China with Forest Management Practices under Future Climate Change and Rising CO_2 Concentration

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Chinese Geographical science 2013年第5期23卷 519-536页

作者： ZHOU Lei WANG shaoqiang Georg KiNDERMANN YU Guirui HUANG Mei Robert MiCKLER florian KRAXNER sHi Hao GONG Yazhen Key Laboratory of Ecosystem Network Observation and Modelling Institute of Geographic Sciences and Natural Resources Research University of Chinese Academy of sciences Ecosystems services and Management International Institute for Applied Systems Analysis Alion science and Technology Inc.Raleigh Renmin University of China

it is critical to study how different forest management practices affect forest carbon sequestration under global climate change regime. Previous researches focused on the stand-level forest carbon sequestration with rare investigation of forest carbon stocks influ- enced by forest management practices and climate change at regional scale. in this study, a general integrative approach was used to simulate spatial and temporal variations of woody biomass and harvested biomass of forest in China during the 21st century under dif- ferent scenarios of climate and CO2 concentration changes and management tasks by coupling integrated Terrestrial Ecosystem Carbon budget （inTEC） model with Global Forest Model （G4M）. The results showed that forest management practices have more predominant effects on forest stem stocking biomass than climate and CO2 concentration change. Meanwhile, the concurrent future changes in cli- mate and CO2 concentration will enhance the amounts of stem stocking biomass in forests of China by 12%-23% during 2001-2100 relative to that with climate change only. The task for maximizing stem stocking biomass will dramatically enhance the stem stocking biomass from 2001~100, while the task for maximum average increment will result in an increment of stem stocking biomass before 2050 then decline. The difference of woody biomass responding to forest management tasks was owing to the current age structure of forests in China. Meanwhile, the sensitivity of long-term woody biomass to management practices for different forest types （coniferous forest, mixed forest and deciduous forest） under changing climate and CO2 concentration was also analyzed. in addition, longer rotation length under future climate change and rising CO2 concentration scenario will dramatically increase the woody biomass of China during 2001~100. Therefore, our estimation indicated that taking the role of forest management in the carbon cycle into the consideration at regional or national

关键词： global forest model carbon stock forest management rotation length harvested biomass future climate change

Yb-doped large-pitch fibres: effective single-mode operation based on higher-order mode delocalisation

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Light(science & Applications) 2012年第1期1卷 118-122页

作者： Jens Limpert Fabian stutzki florian Jansen Hans-Jurgen Otto Tino Eidam Cesar Jauregui Andreas Tunnermann institute of Applied Physics Abbe Center of PhotonicsFriedrich-Schiller-Universitat Jena07745 JenaGermany Helmholtz institute Jena 07743 JenaGermany Fraunhofer institute for Applied Optics and Precision Engineering 07745 JenaGermany

Rare earth-doped fibres are a diode-pumped,solid-state laser architecture that is highly scalable in average *** performance of pulsed fibre laser systems is restricted due to nonlinear ***,fibre designs that allow for very large mode areas at high average powers with diffraction-limited beam quality are of enormous ***-doped,rod-type,large-pitch fibres(LPF)enable extreme fibre dimensions,i.e.,effective single-mode fibres with mode sizes exceeding 100 times the wavelength of the guided radiation,by exploiting the novel concept of delocalisation of higher-order transverse *** non-resonant nature of the operating principle makes LPF suitable for high power *** design allows for an unparalleled level of performance in pulsed fibre lasers.

关键词： higher-order mode delocalisation high-power fibre lasers and amplifiers photonic-crystal fibre very large mode area

One-pot activation and pyrolysis of Moroccan Gelidium sesquipedale red macroalgae residue:production of an efficient adsorbent biochar

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Biochar 2019年第4期1卷 401-412页

作者： saida Tayibi florian Monlau Nour-elhouda Fayoud Abdallah.Oukarroum Youssef Zeroual Hassan Hannache Abdellatif Barakat iATE Montpellier SupAgroINRAEUniversite de MontpellierMontpellierFrance Mohammed Vi Polytechnic University(UM6P) BenguerirMorocco APEsA Pôle ValorisationCap EcologiaLescarFrance LiMAT Facultédes Sciences Ben M’SikUniversitéHassan II de CasablancaCasablancaMorocco situation innovation OCP GroupComplexe industriel Jorf LasfarEl

One-pot chemical activation and pyrolysis process was developed for biochar production from red macroalgae residue of Gelidium *** macroalgae residue was activated by various catalysts(KOH,NaOH,H_(3)PO_(4),and CH_(4)ON_(2))with the two concentrations(2.5 wt%and 5 wt%)using a pulverization system followed by slow pyrolysis at 500℃.The activated biochars showed a porous morphology with an increase of water holding capacity compared to the unactivated *** properties of activated biochar observed by further characterization(i.e.,FTiR,sEM,TGA)revealed their feasibility to be used as an *** results of adsorption experiment confirmed that adsorption was dependent not only on the surface area but also on the surface charge,and functional *** sorption performance of activated biochars(AcBC),in terms of the adsorption of methylene blue,was comparable to commercial activated charcoal(Norit^(■)).NaOH(2.5 wt%)-activated biochar had the removal efficiency of 87%versus 97%for commercial activated charcoal.

关键词： Red macroalgae residue Chemical activation slow pyrolysis Adsorption

Multiband emission from single β-NaYF_(4)(Yb,Er) nanoparticles at high excitation power densities and comparison to ensemble studies

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Nano Research 2021年第11期14卷 4107-4115页

作者： florian Frenzel Christian Würth Oleksii Dukhno Frédéric Przybilla Lisa MWiesholler Verena Muhr Thomas Hirsch Yves Mély Ute Resch-Genger Federal institute for Materials Research and Testing(BAM) Division 1.2 BiophotonicsRichard-Willstaetter-Str.1112489BerlinGermany Laboratory of Biomaging and Pathologies UMR 7021 CNRSUniversity of Strasbourg67000StrasbourgFrance institute of Analytical Chemistry Chemo-and BiosensorsUniversity of Regensburg93040RegensburgGermany institut für Physik and iRis Adlershof Humboldt-Universität zu BerlinNewtonstraße 1512489BerlinGermany

Ensemble and single particle studies of the excitation power density (P)-dependent upconversion luminescence (UCL) of core and core-shell β-NaYF_(4):Yb,Er upconversion nanoparticles (UCNPs) doped with 20% Yb^(3+) and 1% or 3% Er^(^(3+)) performed over a P regime of 6 orders of magnitude reveal an increasing contribution of the emission from high energy Er^(3+) levels at P > 1 kW/cm^(2). This changes the overall emission color from initially green over yellow to white. While initially the green and with increasing P the red emission dominate in ensemble measurements at P increasing population of higher Er^(^(3+)) energy levels by multiphotonic processes at higher P in single particle studies results in a multitude of emission bands in the ultraviolet/visible/near infrared (UV/vis/NiR) accompanied by a decreased contribution of the red luminescence. Based upon a thorough analysis of the P-dependence of UCL, the emission bands activated at high P were grouped and assigned to 2–3, 3–4, and 4 photonic processes involving energy transfer (ET), excited-state absorption (EsA), cross-relaxation (CR), back energy transfer (BET), and non-radiative relaxation processes (nRP). This underlines the P-tunability of UCNP brightness and color and highlights the potential of P-dependent measurements for mechanistic studies required to manifest the population pathways of the different Er^(3+) levels.

关键词： upconversion luminescence single nanoparticle study high power excitation emission color luminescence decay kinetics

Multiparametric characterization of red blood cell physiology after hypotonic dialysis based drug encapsulation process

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Acta Pharmaceutica sinica B 2022年第4期12卷 2089-2102页

作者： Mélanie Robert Bastien Laperrousaz Diana Piedrahita Emilie-Fleur Gautier Travis Nemkov florian Dupuy Elie Nader Virginie salnot Patrick Mayeux Angelo D’Alessandro Catherine Lavazec Philippe Joly Alexander scheer Philippe Connes Agnès Cibiel Erytech Pharma Lyon 69008France Laboratoire interuniversitaire de Biologie de la Motricité(LiBM)EA7424 Team«Vascular Biology and Red Blood Cell»Universite´Claude Bernard Lyon 1Universite´de LyonLyon 69008France Labex GR-Ex Paris 75015France 3P5 proteom’iC facility Universitéde ParisInstitut CochinINSERMCNRSParis 75014France University of Colorado Anschutz Medical CampusAuroraCO 80045USA Omix Technologies Inc.AuroraCO 80045USA inserm U1016 CNRS 8104Universitéde ParisInstitut CochinParis 75014France Laboratoire de Biochimie et de Biologie Moléculaire UF de biochimie des pathologies e´rythrocytairesCentre de Biologie et de Pathologie EstHospices Civils de LyonBron 69500France

Red blood cells(RBCs)can act as carriers for therapeutic agents and can substantially improve the safety,pharmacokinetics,and pharmacodynamics of many *** RBCs integrity and lifespan is important for the efficacy of RBCs as drug *** investigated the impact of drug encapsulation by hypotonic dialysis on RBCs physiology and *** parameters were compared between processed RBCs loaded with l-asparaginase(“eryaspase”),processed RBCs without drug and non-processed *** RBCs were less hydrated and displayed a reduction of intracellular *** observed a change in the metabolomic but not in the proteomic profile of processed *** process caused moderate morphological changes and was accompanied by an increase of RBCs-derived Extracellular Vesicles *** a decrease in deformability,processed RBCs were not mechanically retained in a spleen-mimicking device and had increased surface-to-volume ratio and osmotic *** RBCs half-life was not significantly affected in a mouse model and our previous phase 1 clinical study showed that encapsulation of asparaginase in RBCs prolonged its in vivo half-life compared to free *** study demonstrated that encapsulation by hypotonic dialysis may affect certain characteristics of RBCs but does not significantly affect the in vivo longevity of RBCs or their drug carrier function.

关键词： Red blood cells Drug carrier Hypotonic dialysis L-Asparaginase Omics Rheology Morphology senescence markers