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Deep eutectic solvent-driven self-assembly of metal mercaptide complexes with enzyme-mimicking activities for detection of uric acid through one-step cascade catalytic reaction

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Green Chemical Engineering 2024年第1期5卷 75-84页

作者： jean claude Munyemana Jia Chen Xin Li Yangxia Han Hao Tang Hongdeng Qiu CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing100039China Department of Pharmacy Gansu Provincial HospitalLanzhou730000China

This work presents a generic strategy to create a series of metal mercaptides complexes via coordination selfassembly between transition metals(Mn,Cu,Co,Fe,and Ni)and cysteine(Cys)by forming the sulfur-metal *** strategy involves dissolving metal chlorides and Cys into deep eutectic solvents(DES),followed by the precipitation of metal mercaptides complexes(such as Cys-Mn)by adding water as an antisolvent,where DES serves as the solvent,shape directing,and capping agent,thereby preventing the formation of other metal ***,the prepared complexes possess both laccase and peroxidase-like properties,allowing the design of a technique for the detection of L-3,4-dihydroxyphenylalanine(L-DOPA)and uric acid,*** prepared Cys-Mn can linearly oxidize L-DOPA with its concentrations from 0.1 to 130μM and the detection limit was calculated to be 75.5 n ***,the Cys-Mn can mimic the activity of peroxidase towards oxidization of o-phenylenediamine at neutral p H,allowing single-step and one-pot cascade reactions for visual and fluorometric measurements of uric acid(UA)that could work in the range of 0.2-500μM UA with a detection limit of 0.06μM and 0.054μМ,*** assay was successful in detecting UA in serum and urine samples with relative standard deviation(RSD)ranging from 7.3%to 10.2%and 3.0%-8.5%respectively,suggesting that it may prove useful in medical diagnostic testing.

关键词： Metal-mercaptides Deep eutectic solvents Self-assembly Peroxidase-mimic catalyst Uric acid detection

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花东海盆深地震探测及其重要构造意义

花东海盆深地震探测及其重要构造意义

2019年中国地球科学联合学术年会

作者：赵明辉刘思青 jean-claude sibuet 程锦辉丘学林 Jonny Wu 中国科学院边缘海与大洋地质重点实验室中国科学院南海海洋研究所中国地质调查局广州海洋地质调查局

＜正＞花东海盆,是西太平洋系统中最为独特的一个洋盆,它作为菲律宾海板块（PSP）楔入体的前锋,位于PSP板块与欧亚板块的交汇处及构造运动的转折点,构造位置极为重要（李春峰等, 2007）。在地理位置上,它位于我国台湾东部海域（约19o–2...

＜正＞花东海盆,是西太平洋系统中最为独特的一个洋盆,它作为菲律宾海板块（PSP）楔入体的前锋,位于PSP板块与欧亚板块的交汇处及构造运动的转折点,构造位置极为重要（李春峰等, 2007）。在地理位置上,它位于我国台湾东部海域（约19o–24oN, 121o–123oE）,面积约2.23×104 km2,呈长轴南北向的菱形海盆,宽～150 km,长～250 km,北深南浅（2000–4500 m）。向西与台湾东部的海岸山脉和北吕宋火山岛弧相连,成为岛弧的基底（Quae?o et al., 2013）,其东以加瓜海脊（Gauga Ridge）（123oE）与西菲律宾海相隔（Deschamps et al., 1998）,其北沿琉球海沟向欧亚陆缘俯冲（Gutscher et al., 2016）。

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冲绳海槽的弧后扩张

世界地质 1991年第3期10卷 129-142页

作者： jean-claude sibuet 吕东辉

1引言位于琉球海沟和琉球群岛之后的弧后盆地——冲绳海槽是从台湾北部的宜兰平原延展到琉球西南的浅海地带。从总体上看,其南部宽60至1OOkm,而在北部达到最大宽度230km。其南部最大水深为2300m,北部逐渐减为约200m(如图1所示)。

关键词：海槽孤后扩张冲绳

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New Insights in the Biodegradability and the Ecotoxicological Effects of Solar Products Containing Mineral and Chemical UV-Filters on Marine Zoo- and Phytoplanktons: An in silico and in vitro Study

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Journal of Cosmetics, Dermatological Sciences and Applications 2024年第1期14卷 98-111页

作者： jean-claude Hubaud Karim Mekideche jean-Eric Branka Luc Lefeuvre HELIOSCIENCE Cité de la cosmétique 2 rue Odette Jasse Marseille France EPHYSCIENCE 498ter route de Saint Joseph de Porterie Nantes France Laboratoires Dermatologiques d’Uriage Neuilly-sur-Seine France

Background: Cosmetic formulations, and particularly solar products which contain mineral and chemical UV-filters, are often suspected of causing harmful effects on marine fauna and flora. After the publication of our work in 2019 concerning the ecotoxicological effects of such formulations on corals (Seriatopora hystrix), we here provide some new information about the biodegradability and the ecotoxicological effects of these products on marine zoo- and phytoplankton. Therefore, we choose to realize in silico and in vitro studies of the biodegradability of several solar products but also to evaluate the ecotoxicological effects of these products on one phytoplankton, i.e. Phaeodactylum tricornutum, and one zooplankton, i.e. Acartia tonsa, of a great importance for sea species survival (notably as sources of food). Materials and methods: Two different approaches were used to study the biodegradability of the tested products: One in silico method and an in vitro one. 2 solar products were involved in the in silico study which consisted in the determination of the degradation factor (DF) of each ingredient of the tested formulas in order to finally obtain their estimated biodegradability percentage. Already available data concerning each ingredient coupled to a computer model developed with one of our partners were used to achieve this study. The in vitro study involved 8 formulas containing UV-filters and was led by following the OECD 301 F guidelines. Ecotoxicological studies of 7 of the formulas containing UV-filters were for their part realized by following the ISO 10253 guidelines for the experiments led with Phaeodactylum tricornutum, and the ISO 14669 guidelines for the experiments led with Acartia tonsa. In these studies, the effect of each tested product on crustaceans’ mortality and algal growth inhibition was assessed. Results: The in silico study predicted that formulas containing chemical UV-filters display a high biodegradability (superior to the threshol

关键词： UV-Filters Chemical UV-Filter Biodegradability Ecotoxicology in silico in vitro Zooplankton Phytoplankton Phaeodactylum tricornutum Acartia tonsa

31 Plant Species against Blood Feeding and Disease Vectors Insects: Beyond Anti-Insect Properties, Unvalued Opportunities and Challenges for Health and Sustainability

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Pharmacology & Pharmacy 2024年第5期15卷 167-206页

作者： Prudence Bararunyeretse jean claude Niyokwizera Esperance Gateretse Mathias Hitimana Research Center for Natural and Environmental Sciences (CRSNE) University of Burundi Bujumbura Burundi Institutes of Agronomic Sciences of Burundi (ISABU) Bujumbura Burundi East African Nutritional Sciences Institute (EANSI) University of Burundi Bujumbura Burundi

Plants with bioactive properties are greatly useful in preventing and controlling blood-sucking and disease-vector invertebrates, particularly in developing countries and low-income communities. Their application is a promising alternative to synthetic compounds whose use remains a health, environmental, and economic challenge. However, many are still unknown and unvalued, while others are becoming ignored and threatened. The main objective of this ethnobotanical study is to identify and characterize indigenous and locally grown plants against blood-sucking and disease-vector insects. Salient opportunities and challenges of using these plants are documented and discussed. Semi-structured interviews, using a prepared questionnaire, were conducted with 228 informants. The consensus index (CI) was calculated to analyze the reliability of the collected information. The identified 31 anti-insect plant species belong to 20 botanical families, four morphological categories, and six habitat types. They can be categorized as insecticidal plants (42% of the total), insect repellent (42% of the total), and both insecticidal and insect repellent (16% of the total). More than 54% of these are still abundant in the study area, while about 35.5% have become rare and difficultly accessible. Based on the numerical importance of related anti-insect plant species, the seven targeted blood-sucking insects range in the following decreasing order: Jiggers (16 species) > Fire Ants (9 species) > Flies (8 plants) > Mosquitoes (4 species) > Fleas (2 species) > Bedbugs (1 species) > lice (0 species). The three most commonly used plants, with the highest confirmation indices, are Tetradenia riparia (ICs = 0.712), Eucalyptus globulus subsp. maidenii (ICs = 0.302), and Solanum aculeastrum (ICs = 0.288). The antimicrobial role of many locally grown anti-insect plants and the multiple other associated valorization possibilities are ignored by most informants. Domesticating, propagating, protecting

关键词： Blood-Feeding Insects Anti-Insect Plants Biopesticides Sustainability Burundi

Bound and Resonating Multiquark Configurations

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Chinese Physics Letters 2024年第8期41卷 8-12页

作者： jean-Marc Richard Institut de Physique des 2 Infinis de Lyon Universit′e claude Bernard(Lyon 1) CNRS-IN2P34 rue Enrico Fermi69622 VilleurbanneFrance

We review the predictions of quark models for multiquark configurations that are bound or resonant states,and compare different methods for estimating the properties of resonances.

关键词： quark Configuration resonant

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Factors Associated with HIV/Tuberculosis Coinfection among People Living with HIV after Initiation of Antiretroviral Treatment in Lingwala Health Zone from 2021 to 2023

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Advances in Infectious Diseases 2024年第1期14卷 176-195页

作者： jean claude Mikobi Maleshila Espérant Ntambue Malu Fabrice Sewolo Tacite Kpanya Mazoba jean Nyandwe Kyloka Kinshasa School of Public Health University of Kinshasa Kinshasa Democratic Republic of the Congo Interdisciplinary Center for Research in Medical Imaging (CIRIMED) Kinshasa Democratic Republic of the Congo

Context and objective: Around 8% of incident cases of tuberculosis (TB) were reported among people living with HIV worldwide in 2022. Tuberculosis is the leading cause of death among people living with HIV. Africa accounts for the majority of co-infection episodes, with over 50% of cases in some parts of southern Africa. In the Democratic Republic of Congo (DRC), around 9% of persons living with HIV (PLHIV) develop TB and 11% of TB patients are infected with HIV. The DRC is one of the 30 countries in the world bearing the brunt of co-infection. Despite the efforts made by countries to improve access to antiretroviral traitement (ART), TB remains a major problem among people living with HIV. The Lingwala Health Zone in the provincial city of Kinshasa recorded a large number of cases of HIV/TB co-infection during the study period. The aim of this study was to determine the factors associated with HIV/TB co-infection among PLHIV on ART in the Lingwala health zone (HZ) in Kinshasa. Methods: This was a case-control study conducted in the state-run HIV care facilities in the Lingwala health district among PLHIV who had visited the health facilities during the period 2021-2023. Cases were coinfected patients and controls were PLHIV who had not developed tuberculosis during the study period. Results: A total of 281 PLHIV were enrolled in the study, with 70 cases and 211 controls. Factors associated with HIV/TB co-infection after multivariate analysis were viral load (OR = 5.34;95% CI;1.8-15.8, p = 0.005). History of tuberculosis (OR = 20.84;95% CI;8.6-50.3, p -85.0, p = 0.005) and BMI Conclusion: The results of this study indicate that the detection of these enumerated factors should prompt providers to actively search for tuberculosis with a view to organising early management.

关键词： PLHIV on ART HIV/TB Co-Infection Viral Load Antiretroviral (ARV) Adherence

南海北部裂后期岩浆活动：喷发动态和火山生长机制

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南海北部裂后期岩浆活动：喷发动态和火山生长机制

2020年中国地球科学联合学术年会

作者：孙启良 Craig Magee Christopher A.-L.Jackson 赵明辉 Samuel J.Mitchell jean-claude sibuet Gér?me Calvès 解习农中国地质大学 University of Leeds Imperial College London 中国科学院南海海洋研究所 University of Bristol Ifremer Centre de Brest Université Toulouse

传统观点认为南海北部为非火山型或过渡型大陆边缘。裂后岩浆虽然有所报道,但是多集中于南海扩张时期的洋中脊部位或同时期的部分大陆边缘盆地。而裂后期,尤其是南海扩张停止以后,南海北部岩浆活动尚知之甚少。根据高精度的三维地震资料... 详细信息

传统观点认为南海北部为非火山型或过渡型大陆边缘。裂后岩浆虽然有所报道,但是多集中于南海扩张时期的洋中脊部位或同时期的部分大陆边缘盆地。而裂后期,尤其是南海扩张停止以后,南海北部岩浆活动尚知之甚少。根据高精度的三维地震资料,本研究发现南海北部裂后期存在着以前未曾发现的强烈岩浆活动。本研究揭示了岩浆系统的三维结构,岩浆活动的时间,岩浆在海底展布的控制因素以及裂后岩浆的成因。

关键词：南海北部岩浆活动生长机制

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高浓磨浆过程强度表征研究现状及展望

高浓磨浆过程强度表征研究现状及展望