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| 1 | Pollen indication to source plants in the eastern desert of China显示文摘In order to investigate the indication of major pollen types to source plants, 39 surface pollen samples are collected from 39 plant communities. The results show that diversity of pollen assemblages presents in different commu-nities. Chenopodiaceae pollen percentages are highest in Kalidium communities and Ceratoides communities (higher than 45%, average is 63.4%), but high Ephedra pollen per-centages (higher than 3.3%, average is 16.5%)in Ceratoides communities make it distinguished from Kalidium communi-ties. Artemisia pollen percentages (more than 50%) are much higher than Chenopodiaceae (less than 35%) in Artemisia Communities. Nitraria pollen percentages (higher than 2%, average is 13.6%) are highest in Nitraria communities com-pared with those in other community patterns. Tamariceae pollen percentages (higher than 2%, average is 8.6%) are highest both in Tetraena and Reaumuria communities com-pared with those in other community patterns. But in Reau-muria communities, Artemisia pollen percentages are higher than Chenopodiaceae with some other pollen types such as Gramineae, Compositae, Leguminosae; on the contrary, in Tetraena communities, Artemisia pollen percentages are less than Chenopodiaceae with few other pollen types. Calli-gonum pollen only appears in Calligonum communities (higher than 2%,average is 5%). The results of cluster analysis (CLA) and detrended correspondence analysis (DCA) show that the pollen indication to source plants can be reflected by association indices (A), over-representation in-dices (O), under-representation indices (U), R-value, the av-erage pollen percentages where parent plants are absent (Xa) and the average pollen percentages where parent plants are present (Xp). Zygophyllum, Calligonum, Tetraena, Tribulus and Tamariceae can indicate source plants very well, owing to high A scores. Artemisia, Chenopodiaceae and Gramineae have high R-values, and Nitraria, Cruciferae and sedum have high O scores, so they are over-represented types, but the higher Xp and the lower Xa values make that these pollen types can also indicate source plants moderately. Allium, Leguminosae, Roseceae, Pedicularis and Compositae have low A scores (less than 0.5), high O and/or U scores, so they cannot indicate source plants clearly. Some other pollen types, such as Pinus, Picea, Betula, Quercus, Ulmus, Ephedra, Elaegnaceae, Ranunculaceae, Caryophyllaceae, Polygona-ceae, Saxifragaceae, only appear in pollen assemblages, so their indication cannot be decided. Just like the pollen per-centage ratios of Artemisia and Chenopodiaceae (A/C), the ratios of Ephedra and Artemisia (E/A), Nitraria and Ephedra (N/E) can also indicate the aridity of environment. In typical desert communities, A/C ratios are less than 0.5, E/A ratios are more than 0.1, and N/E ratios are less than 1. In steppe desert, A/C ratios are 0.5―2, E/A ratios are less than 0.1, and N/E ratios are more than 1. | LI Yuecong XU Qinghai ZHAO Yinclkui YANG Xiaolan XIAO Jule CHEN Hui Lü Xinmiao | 2005 | Chinese Science Bulletin2005，50，15： | 17 |
| 2 | 中文版32项轻躁狂症状清单效度与信度显示文摘目的 研究中文版32项轻躁狂症状清单(HCL-32)在双相障碍(BP)患者中的信度、效度以及与重性抑郁障碍(单相抑郁障碍,UP)区分的最佳划界分、敏感性和特异性等.方法 征得HCL-32原作者同意后,对英文版本量表互译后适当修改成中文版本HCL-32.以美国精神障碍诊断与统计手册第四版为诊断标准,在深圳市及上海市精神卫生中心门诊及住院部收集300例双相障碍、156例重性抑郁障碍患者.所有研究对象使用中文版HCL-32进行测评,其中155例双相障碍患者(51.7%)在8~14d重测.结果 BP患者的中文版HCL-32结果 的KMO值0.83,Bartlett球形检验卡方值有统计学意义(P<0.01).因子分析显示前2个因子的特征值较佳(6.32,3.00),前2个因子对总方差的累积贡献率为29.1%.中文版HCL-32的Cronbach's alpha值0.86,因子Ⅰ、Ⅱ分别为0.86,0.69.HCL-32重测相关系数为0.62.32项条目阳性回答率为11.6%~89.7%.BP患者的HCL-32分平均分为(16.6±6.2)分,而UP患者的HCL-32分平均分为(10.9±6.4)分,差异有统计学意义(P<0.01).经ROC曲线法,HCL-32对于BP患者与单相抑郁障碍患者的最佳划界分为14分,相应敏感性、特异性为0.74,0.66,阳性预测值0.81,阴性预测值0.57.结论 中文版HCL-32经在双相患者中初步测试,其信度、效度满足心理测量学要求,并可作为双相障碍筛查的辅助工具. | 杨海晨 苑成梅 Jules Angst 刘铁榜 廖春平 荣晗 | 2010 | 中华行为医学与脑科学杂志2010，19，8： | 14 |
| 3 | 中文版32项轻躁狂症状清单在双相Ⅰ型障碍患者中的应用显示文摘目的研究中文版32项轻躁狂症状清单(HCL-32)在双相Ⅰ型障碍中的信度、效度等结果。方法对132例双相Ⅰ型障碍患者进行测评,并且有95例患者(72.0%)在8~14d重测。结果①经相关分析及Kruskal—Wallis检验,双相Ⅰ型障碍患者在接受测评时的心境状态对HCL-32得分的影响无统计学意义(P值分别为0.62,0.70)。②因子分析显示前2个因子的特征值较佳,分别为5.48,3.15,前2个因子对总方差的累积贡献率为27.0%。内部一致性信度分析HCL-32全量表Cronbach’s alpha值为0.83,因子Ⅰ、Ⅱ分别为0.83,0.72。全量表重测相关系数为0.61(P=0.00)。前后2次测评中,32项条目应答一致率为58.9%-91.6%,有5个条目该值低于70%。患者的HCL-32得分范围为5~32分,患者的HCL-32总分≥14分时,例数增加明显。32项条目阳性回答率为11.4%~93.9%。结论HCL-32中文版在双相Ⅰ型障碍患者中初步试用,其信度、效度尚满意。 | 杨海晨 Jules Angst 廖春平 苑成梅 位照国 王轶 孔志 杨颖佳 | 2008 | 中国行为医学科学2008，17，10： | 10 |
| 4 | Antibacterial and Antibiotic-Potentiation Activities of Some Cameroonian Food Plants against Multi-Drug Resistant Gram-Negative Bacteria显示文摘Objective:To evaluate the in vitro antibacterial properties and the ability to potentiate some common antibiotics effects of the methanol extracts of 11 Cameroonian food plants on 29 Gram-negative bacteria expressing multidrug resistant(MDR) phenotypes.Methods:The antimicrobial activity of the extracts was performed using the broth microdilution method.The phytochemical screening of these extracts was also performed using standard methods.Resutts:Ocimum basilicum,Gnetum africanum and Eucalyptus robusta extracts possessed an antibacterial activity against all the 29 studied bacteria.The extracts from G.africanum and E.robusta were the most active with the lowest minimal inhibitory concentration of 64 μg/mL on Escherichia coli AG100 A for both extracts and also against Klebsiella pneumoniae K24 for G.africanum.When tested in the presence of phenylalanine-arginine β-Naphtylamide(PA β N),an efflux pump inhibitor,the extract of Thymus vulgaris and E.Robusta showed the best activities on most tested strains.E.Robusta extract showed good synergistic effects,improving the activity of commonly used antibiotics in about 85%of cases.Conclusion:The overall results obtained provide the baseline information for the use of the tested plants in the treatment of bacterial infections. | Simplice B.Tankeo Stephen T.Lacmata Jaures A.K.Noumedem Jean P.Dzoyem Jules R Kuiate Victor Kuete | 2014 | Chinese Journal of Integrative Medicine2014，20，7： | 7 |
| 5 | Diagnosis of gastrointestinal stromal tumors: A consensus approach显示文摘 | Christopher D.M. Fletcher Jules J. Berman Christopher Corless Fred Gorstein Jerzy Lasota B.Jack Longley Markku Miettinen Timothy J. O’Leary Helen Remotti Brian P. Rubin Barry Shmookler Leslie H. Sobin Sharon W. Weiss | 2002 | Human Pathology2002，，5： | 7 |
| 6 | 非光滑表面减阻研究进展显示文摘基于仿生学研究发展的非光滑表面减阻技术在海洋工程装备和高技术船舶等领域具有广阔的应用而备受学者关注。对非光滑表面减阻的研究方法进行了系统介绍,概述了沟槽、凹坑和自适应3种非光滑表面的相关研究进展:(1)沟槽表面的减阻机理以及沟槽结构的几何参数、形状和排布等对减阻性能的影响;(2)凹坑表面应用于旋成体及平板上的减阻效果和湍流流动中凹坑表面上的流动结构和减阻性能;(3)自适应表面的理论模型,自适应表面的减阻机理,以及壁面运动对流动转捩和湍流结构的影响。最后总结了这3种非光滑表面的减阻效果以及相关减阻机理的研究趋势,并指出非光滑表面减阻在未来研究中需要重点关注的问题。从已有的研究成果和部分应用成果来看,非光滑表面具有巨大的工程价值和广阔的应用潜力。本文旨在更具体、全面地了解非光滑表面减阻,从而为改进当前的减阻节能技术提供必要的理论基础。 | 秦立果 龚朝永 孙红江 席奂 Fagla Jules Mawignon 郭飞飞 董光能 | 2022 | 表面技术2022，51，8： | 6 |
| 7 | 经颈内静脉长期透析管:HR-MRCP和HR-T_2WI对透析导管相关并发症及其尖端位置的评估显示文摘目的评估高分辨率MRCP(HR-MRCP)和高分辨率T_2WI(HR-T_2WI)显示经颈内静脉置入长期透析导管(CDC)的尖端位置和相关并发症的能力。方法 41例怀疑CDC功能不良和相关性并发症的终末期肾病(ESRD)患者接受了HR-MRCP和HR-T_2WI扫描。在扫描之前,每位ESRD患者的CDC管腔内注入5 ml生理盐水。扫描完成后由两名副主任医师对CDC的尖端位置和相关性并发症进行评估。所有患者在MRI检查后1-2 d内行胸部X线检查。对于HR-MRI诊断为CDC相关性并发症的患者,CDC在3-10 d内拔出。结果 38例成功执行了HR-MRI扫描,其中的13名ESRD患者CDC的HR-MRI结果正常,HR-T_2WI表现为"双眼征"和HR-MRCP为"双轨征"。25名患者CDC的HR-MRI结果为异常,包括纤维蛋白鞘22例、附壁血栓6例、静脉血栓3例及血凝块4例。对于纤维蛋白鞘(22例),HR-T_2WI表现为"薄环征"(小于3 mm)——环绕CDC周围薄层高信号;对于附壁血栓(6例),HR-T_2WI表现为片状高信号且基底于静脉壁;对于静脉血栓(3例),HR-T_2WI表现为"厚环征"(大于5 mm)且占满整个血管管腔;对于血凝块(4例),当CDC一侧管腔内出现血凝块时,HR-T_2WI表现为"单眼征"及HR-MRCP为"单轨征"(2例),当CDC双侧管腔内出现血凝块时,HR-T_2WI的"眼征"和HR-MRCP的"轨道征"均缺失(2例)。对于MRI诊断为CDC异常的ESRD患者,拔除CDC后发现纤维蛋白鞘12例、静脉血栓4例和血凝块4例。对于显示导管尖端的位置,HR-MRCP和胸片之间无显著性差异(P=0.132)。结论 HRMRCP联合HR-T_2WI能准确显示CDC尖端的位置及其相关并发症,是一种很有前景的无创检查方法 ,有助于ESRD患者的治疗方案调整。 | 袁妍 裴贻刚 龙学颖 李文政 Jules Zogbelemou 宁建平 肖湘成 钟勇 | 2016 | 影像诊断与介入放射学2016，25，2： | 4 |
| 8 | 中文版32项轻躁狂症状清单在双相Ⅱ型障碍患者中的应用显示文摘目的:研究中文版32项轻躁狂症状清单(32-item hypomania checklist,HCL-32)在双相Ⅱ型障碍患者中应用的效度、信度。方法:对69例双相II型障碍患者应用HCL-32进行测评,其中有26例(37.7%)患者在8~14d后重测。结果:经相关分析及Kruskal-Wallis检验,双相II型障碍患者在接受测评时的心境状态对HCL-32得分的影响无统计学意义(P分别为0.48、0.23)。因子分析显示前2个因子的特征值较佳,分别为6.19和3.57,前2个因子对总方差的累积贡献率为30.5%。内部一致性信度分析HCL-32全量表Cronbach'salpha值为0.84,因子I和因子II分别为0.85和0.66。全量表重测相关系数为0.51(P=0.007)。前后两次测评中,32项条目重测一致率为53.8%~96.2%。患者的HCL-32得分范围为3~26分,HCL-32总分≥14的患者有46例(66.7%)。量表分均值为(15.26±5.91)分。32项条目阳性回答率为7.2%~82.6%。结论:HCL-32中文版在双相II型障碍患者中初步试用,其效度、内部一致性信度尚满意,但重测信度偏低。 | 杨海晨 苑成梅 Jules Angst 刘铁榜 廖春平 荣晗 | 2010 | 临床精神医学杂志2010，20，3： | 4 |
| 9 | Maintenance Peginterferon Therapy and Other Factors Associated With Hepatocellular Carcinoma in Patients With Advanced Hepatitis C显示文摘 | Anna S. Lok James E. Everhart Elizabeth C. Wright Adrian M. Di Bisceglie Hae–Young Kim Richard K. Sterling Gregory T. Everson Karen L. Lindsay William M. Lee Herbert L. Bonkovsky Jules L. Dienstag Marc G. Ghany Chihiro Morishima Timothy R. Morgan | 2011 | Gastroenterology2011，，3： | 4 |
| 10 | 消融的冰川:加拿大班夫国家公园亚高山带鲍湖中持久性有机氯的主要来源显示文摘有机氯杀虫剂和多氯联苯(PCB)是环境中普遍而稳固的化合物。现已查明,由于它们从温暖的地区逐渐蒸发出来,并在较冷的地区凝聚下来,因而它们富集在寒冷的环境中。在本研究中,我们的结果是,消融的冰川供给阿尔伯达亚高山带湖泊中的有机氯输入量为50%~97%,而提供的水量为73%。对氚的分析结果表明,在夏季的中、晚期,至少10%的冰川消融物是在1950~1970年期间沉积下来的,这期间它受到有机氯更多的污染。这一发现表明,气候变暖可能会使消融的冰川成为日益增多的淡水污染物来源。由于有机物贫乏的冰川粘土对多氯联苯这样的疏水化合物的吸附能力有限,因此冰川水流带来的有机氯大多呈溶解状态。 | Jules M. Blais David W. Schindler Derek C. G. Muir Martin Sharp David Donald MelissaLafrenière Eric Braekevelt William M. J. Strachan 周立志 | 2001 | AMBIO-人类环境杂志2001，30，7： | 4 |
| 11 | Spatial patterns of vegetation and climate in the North China Plain during the Last Glacial Maximum and Holocene climatic optimum显示文摘Reconstructing the spatial patterns of regional climate and vegetation during specific intervals in the past is important for assessing the possible responses of the ecological environment under future global warming scenarios. In this study, we reconstructed the history of regional vegetation and climate based on six radiocarbon-dated pollen records from the North China Plain. Combining the results with existing pollen records, we reconstruct the paleoenvironment of the North China Plain during the Last Glacial Maximum(LGM) and the Holocene Climatic Optimum(HCO). The results show that changes in the regional vegetation since the LGM were primarily determined by climatic conditions, the geomorphic landscape and by human activity.During the LGM, the climate was cold and dry;mixed broadleaf-coniferous forest and deciduous-evergreen broadleaf forest developed in the southern mountains, and cold-resistant coniferous forest and mixed broadleaf-coniferous forest were present in the northern mountains. The forest cover was relatively low, with mesophytic and hygrophilous meadow occupying the southern part of the plain, and temperate grassland and desert steppe were distributed in the north;Chenopodiaceae-dominated halophytes grew on the exposed continental shelf of the Bohai Sea and Yellow Sea. During the HCO, the climate was warm and wet;deciduous broadleaf forest and deciduous-evergreen broadleaf forest, with subtropical species, developed in the southern mountains, and deciduous broadleaf forest with thermophilic species was present in northern mountains. Although the degree of forest cover was greater than during the LGM, the vegetation of the plain area was still dominated by herbs, while halophytes had migrated inland due to sea level rise. In addition, the expansion of human activities, especially the intensification of cultivation,had a significant influence on the natural vegetation. Our results provide data and a scientific basis for paleoclimate modelling and regional carbon cycle assessment in north China, with implications for predicting changes in the ecological environment under future global warming scenarios. | Manyue LI Shengrui ZHANG Qinghai XU Jule XIAO Ruilin WEN | 2019 | Science China Earth Sciences2019，62，8： | 4 |
| 12 | Control of malaria and other vector-borne protozoan diseases in the tropics: enduring challenges despite considerable progress and achievements显示文摘Vector-borne protozoan diseases represent a serious public health challenge,especially in the tropics where poverty together with vector-favorable climates are the aggravating factors.Each of the various strategies currently employed to face these scourges is seriously inadequate.Despite enormous efforts,vaccines-which represent the ideal weapon against these parasitic diseases—are yet to be sufficiently developed and implemented.Chemotherapy and vector control are therefore the sole effective attempts to minimize the disease burden.Nowadays,both strategies are also highly challenged by the phenomenon of drug and insecticide resistance,which affects virtually all interventions currently used.The recently growing support from international organizations and governments of some endemic countries is warmly welcome,and should be optimally exploited in the various approaches to drug and insecticide research and development to overcome the burden of these prevalent diseases,especially malaria,leishmaniasis,Human African Trypanosomiasis(HAT),and Chagas disease. | Denis Zofou Raymond B Nyasa Dickson S Nsagha Fidele Ntie-Kang Henry D Meriki Jules Clement N Assob Victor Kuete | 2014 | Infectious Diseases of Poverty2014，3，1： | 4 |
| 13 | 认知偏差及其对专家证人和法院的影响显示文摘专家证据为法院司法做出了巨大贡献。但是,在对人类思维方式和大脑信息处理过程有所知悉后,我们认识到,专家证据可能会受到情境信息和认知偏差的影响。认知科学能够发现这些潜在的弱点,并提出切实可行的办法来减少它们。 | Itiel E.Dror Bridget M.McCormack Jules Epstein 王进喜(译) 朱海(译) | 2019 | 证据科学2019，27，3： | 4 |
| 14 | Muc2-Deficient Mice Spontaneously Develop Colitis, Indicating That MUC2 Is Critical for Colonic Protection显示文摘 | Maria Van der Sluis Barbara A.E. De Koning Adrianus C.J.M. De Bruijn Anna Velcich Jules P.P. Meijerink Johannes B. Van Goudoever Hans A. Büller Jan Dekker Isabelle Van Seuningen Ingrid B. Renes Alexandra W.C. Einerhand | 2006 | Gastroenterology2006，，1： | 3 |
| 15 | Incidence of Hepatocellular Carcinoma and Associated Risk Factors in Hepatitis C-Related Advanced Liver Disease显示文摘 | Anna S. Lok Leonard B. Seeff Timothy R. Morgan Adrian M. di Bisceglie Richard K. Sterling Teresa M. Curto Gregory T. Everson Karen L. Lindsay William M. Lee Herbert L. Bonkovsky Jules L. Dienstag Marc G. Ghany Chihiro Morishima Zachary D. Goodman | 2009 | Gastroenterology2009，，1： | 3 |
| 16 | High-precision uranium-series dating of lacustrine carbonates from Daihai Lake显示文摘Ages of small aragonite samples retrieved from sediments from the Daihai Lake are determined by using the Thermal Ionization Mass Spectrometry (TIMS) technique. The ages of the samples range from (8740±601) to (10446±489) a, with a precision of 2%-3% for non-corrected dating ages and 4.7%-9.8% for corrected ages respectively, and are consistent within the deviation range. At about 10.5 ka BP, the grain-size of the sediments coarsens sharply, the frequency curves of grain-size distribution show coarse grain dominated single-double kurtosis, indicating cooling, decreased hydrodynamic conditions and increased wind influence procedure. This is in good agreement with previous results obtained from the Daihai Lake, which suggests that the climate was cold and the lake surface was shrinking. The TIMS ages of the sediments are therefore believed to be credible. | SUN Qianli ZHOU Jie PENG Zicheng LIU Weiguo Xiao Jule | 2001 | Chinese Science Bulletin2001，46，7： | 3 |
| 17 | Flooding and its relationship with land cover change, population growth, and road density显示文摘Bangladesh experiences frequent hydro-climatic disasters such as flooding.These disasters are believed to be associated with land use changes and climate variability.However,identifying the factors that lead to flooding is challenging.This study mapped flood susceptibility in the northeast region of Bangladesh using Bayesian regularization back propagation(BRBP)neural network,classification and regression trees(CART),a statistical model(STM)using the evidence belief function(EBF),and their ensemble models(EMs)for three time periods(2000,2014,and 2017).The accuracy of machine learning algorithms(MLAs),STM,and EMs were assessed by considering the area under the curve—receiver operating characteristic(AUC-ROC).Evaluation of the accuracy levels of the aforementioned algorithms revealed that EM4(BRBP-CART-EBF)outperformed(AUC>90%)standalone and other ensemble models for the three time periods analyzed.Furthermore,this study investigated the relationships among land cover change(LCC),population growth(PG),road density(RD),and relative change of flooding(RCF)areas for the period between 2000 and 2017.The results showed that areas with very high susceptibility to flooding increased by 19.72%between 2000 and 2017,while the PG rate increased by 51.68%over the same period.The Pearson correlation coefficient for RCF and RD was calculated to be 0.496.These findings highlight the significant association between floods and causative factors.The study findings could be valuable to policymakers and resource managers as they can lead to improvements in flood management and reduction in flood damage and risks. | Mahfuzur Rahman Chen Ningsheng Golam Iftekhar Mahmud Md Monirul Islam Hamid Reza Pourghasemi Hilal Ahmad Jules Maurice Habumugisha Rana Muhammad Ali Washakh Mehtab Alam Enlong Liu Zheng Han Huayong Ni Tian Shufeng Ashraf Dewan | 2021 | Geoscience Frontiers2021，12，6： | 3 |
| 18 | Long-term safety of lamivudine treatment in patients with chronic hepatitis B显示文摘 | Anna S.F Lok Ching-Lung Lai Nancy Leung Guang-Bi Yao Zhen-Yu Cui Eugene R Schiff Jules L Dienstag E.Jenny Heathcote Nancy R Little Dorothea A Griffiths Stephen D Gardner Mary Castiglia | 2003 | Gastroenterology2003，，6： | 3 |
| 19 | Prevalence and correlates of depressive symptoms in adult patients with pulmonary tuberculosis in the Southwest Region of Cameroon显示文摘Background:Tuberculosis(TB)remains a global health challenge and depression is a significant contributor to the global burden of disease.Current evidence suggests that there is an association between depressive symptoms and TB,lower adherence to treatment,and increased morbidity and mortality.However,there is paucity of data regarding these associations in Cameroon.This study aimed to determine the prevalence and correlates of depression in adult patients with pulmonary TB(PTB)in the Southwest Region of Cameroon.Methods:A hospital-based cross-sectional study involving 265 patients with PTB was conducted from 2nd January to 31st March 2015 in the Limbe Regional Hospital and the Kumba District Hospital.Depression was diagnosed using the standard nine-item Patient Health Questionnaire,and classified as none,mild or moderate.Logistic regressions were used to investigate correlates of depression in these patients.Results:Of the 265 patients(mean age 36.9±10 years)studied,136(51.3%)were female.The prevalence of depression was 61.1%(95%CI:55.1–66.8),with a significant proportion(36.6%)having mild depression.Multivariable logistic regression analysis showed that being female(aOR=3.0,95%CI(1.7–5.5),P<0.001),having a family history of mental illness(aOR=2.5,95%CI:1.3–5.4,P>0.05),being on retreatment for TB(aOR=11.2,95%CI:5.2–31.1,P<0.001),having discontinued treatment(aOR=8.2,95%CI:1.1–23.3,P<0.05)and having a HIV/TB co-infection(aOR=2.5,95%CI:1.2–6.5,P<0.001)were factors associated with having a higher chance of being depressed.Conclusion:Our study suggests that there is a high prevalence of depression among PTB patients,with more than one in two patients affected.Multidisciplinary care for TB patients involving mental health practitioners is highly encouraged,especially for high-risk groups. | Jules Kehbila Cyril Jabea Ekabe Leopold Ndemnge Aminde Jean Jacques NNoubiap Peter Nde Fon Gottlieb Lobe Monekosso | 2016 | Infectious Diseases of Poverty2016，5，1： | 3 |
| 20 | Microfluidic actuators based on temperature-responsive hydrogels显示文摘The concept of using stimuli-responsive hydrogels to actuate fluids in microfluidic devices is particularly attractive,but limitations,in terms of spatial resolution,speed,reliability and integration,have hindered its development during the past two decades.By patterning and grafting poly(N-isopropylacrylamide)PNIPAM hydrogel films on plane substrates with a 2μm horizontal resolution and closing the system afterward,we have succeeded in unblocking bottlenecks that thermo-sensitive hydrogel technology has been challenged with until now.In this paper,we demonstrate,for the first time with this technology,devices with up to 7800 actuated micro-cages that sequester and release solutes,along with valves actuated individually with closing and opening switching times of 0.6±0.1 and 0.25±0.15 s,respectively.Two applications of this technology are illustrated in the domain of single cell handling and the nuclear acid amplification test(NAAT)for the Human Synaptojanin 1 gene,which is suspected to be involved in several neurodegenerative diseases such as Parkinson’s disease.The performance of the temperature-responsive hydrogels we demonstrate here suggests that in association with their moderate costs,hydrogels may represent an alternative to the actuation or handling techniques currently used in microfluidics,that are,pressure actuated polydimethylsiloxane(PDMS)valves and droplets. | Loïc D'Eramo Benjamin Chollet Marie Leman Ekkachai Martwong Mengxing Li Hubert Geisler Jules Dupire Margaux Kerdraon Clémence Vergne Fabrice Monti Yvette Tran Patrick Tabeling | 2018 | Microsystems & Nanoengineering2018，4，1： | 3 |
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