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Continuous flow synthesis of PbS/CdS quantum dots using substituted thioureas

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Nano Research 2024年第12期17卷 10677-10684页

作者： Pierre Machut Anna Karina Antonini Céline Rivaux Marina Gromova Harinderbir Kaur Wai Li Ling Gabriel Mugny peter reiss STMicroelectronics Grenoble 12 Rue Jules HorowitzGrenoble 38019France Univ.Grenoble Alpes CEA GrenobleCNRSGrenoble INPIRIG/SyMMES/STEPGrenoble 38000France Univ.Grenoble Alpes CEA Grenoble/IRIG/MEMGrenoble 38000France Univ.Grenoble Alpes CEACNRSIBSGrenoble 38000France

To enhance the reproducibility and scale up the synthesis of colloidal quantum dots(QDs),continuous flow synthesis is an appealing alternative to the widely used batch *** other advantages,the strongly enhanced heat and mass transfer in small tubular reactors combined with controlled pressure can be ***,the widespread use of this technique is hampered by special requirements such as the absence of solid or gaseous products and the room-temperature solubility of ***,the transfer of established reaction conditions from batch to flow is not straightforward and in most reported works the optical properties of the obtained QDs lag behind those prepared in batch *** is also the case for PbS-based QDs,which are established near infrared(NIR)absorbers/*** we identified experimental conditions giving access to high-quality PbS core and PbS/CdS core/shell QDs obtained in an automated,easily scalable continuous flow *** particular,substituted thioureas have been selected as the sulfur source and ex-situ synthesized lead and cadmium oleate as the metal precursors,and appropriate solvent mixtures have been identified for each *** luminescent PbS/CdS QDs emitting at the target wavelengths 940 and 1130 nm of special interest for NIR light-emitting diodes have been prepared,exhibiting a photoluminescence quantum yield up to 91%.

关键词： quantum dots continuous flow synthesis thioureas PbS/CdS core/shell nanocrystals quantum dots based light-emittingdiodes(QLEDs)

持续注射法合成InPZnS/ZnS核壳结构量子点的研究

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化学学报 2017年第3期75卷 300-306页

作者：黄璐李志春黄寿强 peter reiss 李良上海交通大学环境科学与工程学院上海200240 法国原子能中心法国38054

高质量、大尺寸的磷化铟量子点(InP quantum dots)的制备对其在生物荧光标记等领域的应用有重大的意义.提出一种持续注射法合成InPZnS/ZnS核壳结构量子点.首先将磷化锌和硫酸反应生成的磷化氢持续注入高温铟前体溶液中,并在反应开始加... 详细信息

高质量、大尺寸的磷化铟量子点(InP quantum dots)的制备对其在生物荧光标记等领域的应用有重大的意义.提出一种持续注射法合成InPZnS/ZnS核壳结构量子点.首先将磷化锌和硫酸反应生成的磷化氢持续注入高温铟前体溶液中,并在反应开始加入适量的锌和硫前体,可制得合金结构的InPZnS核,其量子产率达9%.该方法无需加锌回流处理,可直接升温包覆ZnS壳层,成功制备出发光波长至680 nm且量子产率接近50%的InPZnS/ZnS核壳结构量子点.同时系统地研究了反应物配比对量子点粒径的影响规律,结果表明:通过调控反应物配比可合成不同粒径的InP量子点,其光谱范围几乎可覆盖整个可见光区,甚至到近红外区.通过吸收光谱、荧光光谱、透射电子显微镜、X射线衍射仪和X射线能谱仪考察了所制备量子点的光学特性和形貌结构.最后,采用其它磷前体探究了此方法的通用性,通过注射泵将三(二乙氨基)膦持续注入到高温铟前体溶液中,同样制备出较大尺寸的InP量子点,其发光波长至710 nm.

关键词： InPZnS/ZnS 核壳型量子点量子产率光学特性持续注射法

Is money going digital? An alternative perspective on the current hype

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Financial Innovation 2018年第1期4卷 216-221页

作者： Daniel Gersten reiss Department of Banking Operations and Payments System’s Research Division SBS quadra 3Bloco BEdificio-Sede15 andarBrasiliaDF 70074-900Brazil

Current financial discourse suggests the imminence of a cashless society,a concept that arose from the global popularization of digital financial services and the development of technologies with the potential for application in financial ***,claims about the impending obsolescence of paper money are neither disruptive nor a ***,this paper argues that the conversion of money from paper to bits has been a gradual,adaptive process,and that money is already ***,in this paper we propose that the statuses of electronic money(e-money)and banknotes have switched in the view of monetary authorities.

关键词： Digital money Digital currency E-money Digital financial services

Endotoxins in the prostatic secretions of chronic prostatitis patients:a need for further biomarkers through the use of proteomics

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Asian Journal of Andrology 2006年第1期8卷 123-124页

作者： Sashi S.Kommu Stewart reiss The Royal Marsden NHS Foundation Trust Fulham RoadLondon SW3 6JJUK Brighton and Sussex Medical School University of SussexBrighton BN1 9PXUK

Dear Sir,Dai et al.[1] must be commended on their useful investigation of the clinical significance of endotoxins in the expressed prostatic secretions （EPS） of chronic prostatitis （CP） patients. However, we take issue with their conclusion. The conclusion that EPS endotoxin determination is helpful in diagnostic confirmation is plausible,

关键词： Proteomics Bacterial Infections Biological Markers Chronic Disease Endotoxins Humans Male Prostate Prostatitis

Short Report: Identifying Sources of Subsurface Flow—A Theoretical Framework Assessing Hydrological Implications of Lithological Discontinuities

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Open Journal of Modern Hydrology 2014年第3期4卷 91-94页

作者： Martin reiss peter Chifflard University of Marburg Faculty of Geography Marburg Germany

An integrative theoretical concept—combining scientific approaches from soil science and slope hydrology—is given as a framework to study the influence of depth functions of geochemical concentrations for trace elements, dissolved organic carbon and stable isotopes in the soil pore water of stratified soils on the chemical composition of the hillslope runoff. Combining investigations at the point and hillslope scale opens the opportunity to identify sources of subsurface runoff components using geochemical depth functions as proxies.

关键词： Subsurface Runoff Soil Solution Hillslope Hydrology Cover Beds Geochemical Barriers

Non-invasive determination of murine placental and foetal functional parameters with multispectral optoacoustic tomography

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Light(Science & Applications) 2019年第1期8卷 553-562页

作者： Kausik Basak Xose Luis Dean-Ben Sven Gottschalk Michael reiss Daniel Razansky Faculty of Medicine Technical University MunichMunichGermany Institute for Biological and Medical Imaging Helmholtz Center MunichNeuherbergGermany Faculty of Medicine and Institute of Pharmacology and Toxicology University of ZurichZurichSwitzerland Institute for Biomedical Engineering and Department of Information Technology and Electrical Engineering ETH ZurichZurichSwitzerland Institute of Advanced Studies and Research JIS UniversityKolkataWest BengalIndia

Despite the importance of placental function in embryonic development,it remains poorly understood and challenging to characterize,primarily due to the lack of non-invasive imaging tools capable of monitoring placental and foetal oxygenation and perfusion parameters during *** developed an optoacoustic tomography approach for real-time imaging through entire ~4 cm cross-sections of pregnant *** changes in both maternal and embryo regions were studied at different gestation days when subjected to an oxygen breathing challenge and perfusion with indocyanine *** phenotyping of the cross-sectional scans highlighted different internal organs,whereas multi-wavelength acquisitions enabled non-invasive label-free spectroscopic assessment of blood-oxygenation parameters in foeto-placental regions,rendering a strong correlation with the amount of oxygen ***,the placental function in protecting the embryo from extrinsically administered agents was *** proposed methodology may potentially further serve as a probing mechanism to appraise embryo development during pregnancy in the clinical setting.

关键词： rendering placental sectional

Structure-Function Analysis of Arabidopsis thaliana Histidine Kinase AHK5 Bound to Its Cognate Phosphotransfer Protein AHP1

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Molecular Plant 2013年第3期6卷 959-970页

作者： Johannes Bauer Kerstin reiss Manikandan Veerabagu Michael Heunemann Klaus Harter Thilo Stehle Interfaculty Institute of Biochemistry University of Tubingen D-72076 Tubingen Germany Center for Plant Molecular Biology University of TObingen D-72076 T0bingen Germany Department of Pediatrics Vanderbilt University School of Medicine Nashville TN 37232 USA

The multi-step phosphorelay （MSP） system defines a key signal transduction pathway in plants and many eukaryotes. In this system, external stimuli first lead to the activation of a histidine kinase, followed by transfer of a phosphoryl group from the receiver domain of the kinase （HKRD） to downstream, cytosolic phosphotransfer proteins （HPs）. In order to establish the determinants of specificity for this signaling relay system, we have solved the first crystal structure of a plant HKRD, AHK5RD, in complex with one of its cognate HPs, AHP1. AHP1 binds AHK5RD via a prominent hydrogen bond docking ridge and a hydrophobic patch. These features are conserved among all AHP proteins, but differ significantly from other structurally characterized prokaryotic and eukaryotic HPs. Surface plasmon resonance experiments show that AHK5RD binds to AHP1-3 with similar, micromolar affinity, consistent with the transient nature of this signaling complex. Our correlation of structural and functional data provide the first insight, at the atomic level as well as with quantitative affinity data, into the molecular recognition events governing the MSP in plants.

关键词： multi-step phosphorelay phosphotransfer protein plant signaling sensor histidine kinase two-component system.

儿童发展中的社会过程和遗传的影响:双生子和养子女设计的新颖方法(英文)

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心理学报 2008年第10期40卷 1099-1105页

作者： David reiss Yale Child Study Center New Haven CTUSA

双生子与养子女的研究尤其能对环境影响的机制提供证据。本文扼要地概述了"非共享环境与青少年发展"(NEAD)计划的部分研究成果,特别是子代对父代影响的成果,同时本文也讨论了今后计量行为遗传学的可能走向。

关键词：双生子研究养子女的研究子代对父代影响

Mice lacking perforin have improved regeneration of the injured femoral nerve

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Neural Regeneration Research 2022年第8期17卷 1802-1808页

作者： Igor Jakovčevski Monika von Düring David Lutz Maja Vulović Mohammad Hamad Gebhard reiss Eckart Förster Melitta Schachner Institut für Anatomie und Klinische Morphologie Universität Witten/HerdeckeWittenGermany Department of Neuroanatomy and Molecular Brain Research Ruhr University BochumBochumGermany Department of Anatomy Faculty of Medical SciencesUniversity of KragujevacKragujevacSerbia Keck Center for Collaborative Neuroscience and Department of Cell Biology and Neuroscience Rutgers UniversityPiscatawayNJUSA

The role that the immune system plays after injury of the peripheral nervous system is still not completely ***,a natural killer cell-and T-lymphocyte-derived enzyme that mediates cytotoxicity,plays important roles in autoimmune diseases,infections and central nervous system trauma,such as spinal cord *** dissect the roles of this single component of the immune response to injury,we tested regeneration after femoral nerve injury in perforin-deficient(Pfp^(-/-))and wild-type control *** frame motion analysis showed better motor recovery in Pfp^(-/-)mice compared with control mice at 4 and 8 weeks after *** tracing of the motoneuron axons regrown into the motor nerve branch demonstrated more correctly projecting motoneurons in the spinal cord of Pfp^(-/-)mice compared with *** of regrown axons measured by g-ratio was more extensive in Pfp^(-/-)than in wild-type mice in the motor branch of the femoral ***^(-/-)mice displayed more cholinergic synaptic terminals around cell bodies of spinal motoneurons after injury than the injured *** histologically analyzed lymphocyte infiltration 10 days after surgery and found that in Pfp^(-/-)mice the number of lymphocytes in the regenerating nerves was lower than in wild-types,suggesting a closed blood-nerve barrier in Pfp^(-/-)*** conclude that perforin restricts motor recovery after femoral nerve injury owing to decreased survival of motoneurons and reduced myelination.

关键词： blood-nerve barrier femoral nerve injury locomotor recovery lymphocytes myelination NK-cells perforin reinnervation