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CCS Chemistry 2023年第11期5卷 2506-2518页

作者： Cui-Lian Liu Eduard O.Bobylev Sébastien Dauriac Brice Kauffmann Koen Robeyns yann Garcia Joost N.H.Reek Michael L.Singleton Institute of Condensed Matter and Nanosciences Universitécatholique de LouvainLouvain-la-Neuve 1348 Van’t Hoff Institute for Molecular Sciences University of AmsterdamAmsterdam 1098 XH Universitéde Bordeaux CNRS INSERMUMS3033Institut Européen de Chimie et Biologie(IECB)33600 Pessac

While common in biological systems,building blocks with low symmetry and flexibility pose numerous problems for synthetic self-assembly,such as the formation of isomers of assemblies that are difficult to distinguish and *** this work,three aromatic amide-based ligands(L1–L3)with a central 1,8-diazatriptycene core were designed and used for selfassembly with Pd^(2+).While hundreds of stereoisomers based on the conformational flexibility around the amides and the unsymmetrical nonplanar structure of the core are possible upon coordination with the metal,the constraints designed into the ligands direct the self-assembly toward only a single Pd_(2)L_(4)cage(L1)or Pd_(4)L_(8)double-walled metallomacrocycle(L2)structure,even in mixtures of the *** structural approach and the modularity of the ligand synthesis affords ready access to deep cavitands with endohedral functionalization(L3).These results highlight the potential of this new design strategy and open the door to selectively functionalized cavity-based architectures for numerous applications.

关键词： metal-organic cageopis isomer selectivity low-symmetry ligands self-sorting self-assembly

Geographic Distribution of Aspergillus Section Flavi Subspecies Isolated from Crops, Foods, and Feedstuffs in Benin

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Advances in Microbiology 2023年第8期13卷 361-372页

作者： Adjovi yann Christie Sissinto Fossou Joli Prince Mintognissè Ahehehinnou Hilarion Ulrich Mawuton Laboratory of Biochemistry and Molecular Biology ISBA Cotonou Benin Department of Nutrition and Food Sciences National University of Agriculture Ketu Benin

Mycotoxins are one of the most dangerous chemical contaminants found in staple foods. Aflatoxins, a well-known mycotoxin, are mostly dangerous for both humans and livestock, according to the International Agency Cancer for Research on Cancer. In this paper, the author aimed to establish a geographical distribution map of aflatoxins fungi producers on several food like maize, maize of popcorn, popcorm, fish, spices, cassava, mil, sorghum, peanut and voandzou from the eight (8) agroecological area in Benin. Several molds were isolated from these foods and morphologically characterized on malt extract agar. Among the fungi, 318 species isolated from four leading subspecies, A. flavus, A. parasiticus, A. nomius, and A. togoensis, belonging to the Aspergillus section Flavi, were identified. For molecular analysis, polymerase chain reaction (PCR) methods were used to amplify 1450 pb of the beta-tubulin gene, and their products were used to realize restruction fragment length polymorphisms (RFLPs) to identify genic characteristics. From this strain, three DNA fragments were identified as belonging to subspecies A. flavus, and four DNA fragments were classified as belonging to A. parasiticus. Furthermore, chemotaxonomic’s analysis was performed on all strains isolated by thin layer chromatography revealing variable levels of aflatoxin’s contamination in the samples. All feedstuffs from the eight agroecological areas in Benin were found to be contaminated by several molds, and their mycotoxins mainly comprised four types of aflatoxins: B1, B2, G1 and G2. This study revealed that the four agroecological areas in northern Benin are primarily contaminated by A. flavus and A. togoensis, producers of aflatoxins B1 and B2, whereas the four agroecological areas southern Benin are contaminated by A. parasiticus and A. nomius, producers of both sets of aflatoxins B1 and B2 and aflatoxins G1 and G2. This study can be used to protect public health from the risks associated with liver c

关键词： Agroecological Area Foods Aflatoxins TLC PCR

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新型CO_2直接蒸汽再生实验和模拟研究

动力工程学报 2015年第11期35卷 912-917页

作者：项群扬方梦祥王涛江文敏 yann LE MOULLEC 卢佳汇骆仲泱浙江大学能源清洁利用国家重点实验室杭州310027 法国电力集团EDF中国研发中心北京100005

在对新型直接再生系统进行实验研究的基础上,通过Aspen Plus软件建立平衡模型,对该实验系统进行模拟,并与实验结果进行对比.结果表明:模拟结果与实验结果有较好的一致性;模拟得到的CO2再生能耗(2.44 MJ/kg)要小于实验结果(3.05 MJ/kg),... 详细信息

在对新型直接再生系统进行实验研究的基础上,通过Aspen Plus软件建立平衡模型,对该实验系统进行模拟,并与实验结果进行对比.结果表明:模拟结果与实验结果有较好的一致性;模拟得到的CO2再生能耗(2.44 MJ/kg)要小于实验结果(3.05 MJ/kg),通过优化再生塔的结构和采用促进气液传质的方法,可使实际能耗接近模拟值;通过减小冷凝-汽化换热器的换热温差至5K,可进一步降低CO2再生能耗至2.24 MJ/kg,说明直接蒸汽再生工艺能有效降低能耗.

关键词：二氧化碳化学吸收再生能耗直接蒸汽再生模拟

Selective Lactococcus Enumeration in Raw Milk

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Food and Nutrition Sciences 2013年第9期4卷 49-58页

作者： Laetitia Gemelas Véronique Rigobello Mai Huong Ly-Chatain yann Demarigny Isara-Lyon Unité BioDyMIALyonFrance

The Lactococcus diversity in cow and goat raw milk was investigated. To do so, a protocol had to be established for the specific enumeration of lactococci. Eight agar media and one control medium were analysed to compare their proficiency in evaluating the Lactococcus population in raw milk: M17 Nal, Elliker, modified Elliker, PCA + milk, modified KCA, modified Chalmers, Turner, FSDA. The M17 medium was used as reference. Eighteen pure strains were tested on these media for their selectivity towards lactococci: six Lactococcus species or subspecies, three Leuconostoc, three Enterococcus, two Lactobacillus, one Streptococcus thermophilus, one Pseudomonas fluorescens, one Escherichia coli and one Staphylococcus aureus. All these bacteria were chosen for their regular presence in raw milk. The KCA medium proved to be the most selective towards lactococci, on condition that 1) we discriminated the colonies using the catalase test and 2) we subtracted the Enterococcus population counted on BEA. However, it was not possible to separate the Streptococcus from the Lactococcus colonies on KCA. The “Lactococcus-like” population including these two genera was estimated at a mean level of 3.18 log(cfu)/mL and 4.14 log(cfu)/mL in cow and goat raw milk respectively. This is consistent with the data already published.

关键词： Lactococcus Culture Media Raw Milk LAB Modified KCA

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少年派的奇幻漂流

英语画刊(高级版) 2013年第4期 32-34页

作者： yann Martel

这是一部奇特的小说,是一个扣人心弦的历险故事,是一个关于人类在宇宙中的位置的寓言。该书获奖无数,是一部不同寻常的天才作品。内容简介:派的父亲开了一家动物园。因这样特殊的生活环境,少年派对信仰与人的本性自有一套看法。在派17... 详细信息

这是一部奇特的小说,是一个扣人心弦的历险故事,是一个关于人类在宇宙中的位置的寓言。该书获奖无数,是一部不同寻常的天才作品。内容简介:派的父亲开了一家动物园。因这样特殊的生活环境,少年派对信仰与人的本性自有一套看法。在派17岁那一年,他的父母为了派和哥哥有更好的生活,决定举家移民加拿大。在前往

关键词：少年派加拿大孟加拉虎救生船

Biological Applications of Silica Based Nanoparticles

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Biological Applications of Silica Based Nanoparticles

第七届全国磷化学化工暨第四届海峡化学生物学、生物技术与医药发展讨论会

作者： Chih-Pin Tsai yann Hung Chung-Yuan Mou Department of Chemistry National Taiwan University Taipei Taiwan 106 Department of Chemistry National Taiwan University Taipei Taiwan 106 Department of Chemistry National Taiwan University Taipei Taiwan 106 Center for Condensed Matter Sciences National Taiwan University Taipei Taiwan 106

Silica has great biocompatibility. Core-shell nanoparticles with superparamagnetic iron oxide core and Ru(bpy)3Cl2 containing silica shell have been synthesized and the nanoparticles can serve as dual imaging agents. Mesoporous materials, especially MCM-type silica, have many unique properties, such as ordered porous structure, extremely high surface area (>1000 m2 g-1), large pore volume, and well-defined and tunable pore size (1.5-10 nm). It is proposed that mesoporous materials can act as a convenient reservoir for drugs and biomolecules. At the same time, the extensive internal structure may be utilized for carrying non-releasing molecular imaging agents, such as fluorophore or magnetic resonance imaging (MRI) contrast agent. We have functionalized nano-sized mesoporous silica to be used as fluorescence and MR cell tags. Cellular uptake and the potential of using these nanoparticles as cell markers have been demonstrated.

关键词： Biological Applications of Silica Based Nanoparticles

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法国南特青岛的姊妹城市

走向世界 2013年第25期 72-77页

作者： yann PERRiER 法国电视三台

法国南特市位于卢瓦尔河河口,南特市所有的河流在卢瓦尔河汇集后流入大西洋。得天独厚的地理位置使南特市成为一座可以通过海洋向全球开放的城市。The city of Nantes is located at the estuary of the Loire, the last course of the ... 详细信息

法国南特市位于卢瓦尔河河口,南特市所有的河流在卢瓦尔河汇集后流入大西洋。得天独厚的地理位置使南特市成为一座可以通过海洋向全球开放的城市。The city of Nantes is located at the estuary of the Loire, the last course of the river from Nantes to the Atlantic Ocean. This position gives to the city an international maritime opening.

关键词：姊妹城市南特 maritime Atlantic estuary river 瓦尔城市中心弗朗

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风、仪式和灵魂之音

人与自然 2018年第5期 42-47页

作者： Tie yann

当我们离开部落时,我拍下一张照片,照片中原住民在岸边讨论该如何钓鱼,部落孩童在这个星球另一端的文明之地,自小以万物有灵为信念,与大树、绿地、水、多样丰富的动物一同嬉戏。我看到他们在永恒的阳光下,徜徉于森林之中,与地球的原貌... 详细信息

当我们离开部落时,我拍下一张照片,照片中原住民在岸边讨论该如何钓鱼,部落孩童在这个星球另一端的文明之地,自小以万物有灵为信念,与大树、绿地、水、多样丰富的动物一同嬉戏。我看到他们在永恒的阳光下,徜徉于森林之中,与地球的原貌融成一幅彩色的图景,我心怀感激。亚马孙河岸萨满部落的仪式乐我第一次听到原始部族的仪式音乐是个满月夜,在巴西玛瑙斯往西北200公里左右的内格罗河（Negro）边的部落中。那时我们一行5人已经在亚马孙雨林深处寻找、收录声音15天了。

关键词：灵魂原住民照片

Effective N-methyl-2-pyrrolidone wet cleaning for fabricating highperformance monolayer MoS2 transistors

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Nano Research 2019年第2期12卷 303-308页

作者： Po-Chun Chen Chih-Pin Lin Chuan-Jie Hong Chih-Hao Yang Yun-Yan Lin Ming-Yang Li Lain-Jong Li Tung-Yuan Yu Chun-Jung Su Kai-Shin Li Yuan-Liang Zhong Tuo-Hung Hou yann-Wen Lan Department of Physics "National Taiwan Normal University" Taipei 11677 Taiwan China Department of Electronics Engineering and Institute of Electronics "National Chiao Tung University' Hsinchu 30010 Taiwan China Department of Physics and Center for Nanotechnology Chung Yuan Christian University Chungli 32023 Taiwan China Research Center for Applied Sciences Academia Siriica: Taipei 11529 Taiwan China Physical Sci. and Eng. King Abdullah University of Sci.and Technology Thuwal 23955 Kingdom of Saudi Arabia "National Nano Device Laboratories:"National Applied Research Laboratories" Hsinchu 30078 Taiwan China

Two-dimensional semiconductors,such as MoS2 are known to be highly susceptible to diverse molecular adsorbates on the surface during fabrication,which could adversely affect device *** ensure high device yield,uniformity and performance,the semiconductor industry has long employed wet chemical cleaning strategies to remove undesirable surface contaminations,adsorbates,and native oxides from the surface of Si wafers.A similarly effective surface cleaning technique for two-dimensional materials has not yet been fully *** this study,we propose a wet chemical cleaning strategy for MoS2 by using *** cleaning process not only preserves the intrinsic properties of monolayer MoS2,but also significantly improves the performance of monolayer MoS2 *** device on current of 12 μA·μm-1 for a channel length of 400 nm,contact resistance of 15 kΩ·μm,field-effect mobility of 15.5 cm^2·V^-1·s^-1,and the average on-off current ratio of 10^8 were successfully demonstrated.

关键词： monolayer M0S2 devices standard wet cleaning field-effect transistors N-methyl-2-pyrrolidone

Seismic evidence for an Iceland thermo-chemical plume in the Earth's lowermost mantle

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Seismic evidence for an Iceland thermo-chemical plume in the...