检索结果-南通市图书馆

Functionalized CVD monolayer graphene for label-free impedimetric biosensing

Nano Research 2015年第5期8卷 1698-1709页

作者： Shimaa Eissa Gaston Contreras Jimenez farzaneh Mahvash Abdeladim Guermoune Chaker Tlili Thomas Szkopek Mohammed Zourob Mohamed Siaj Institut national de la recherche scientifique Centre - Energie Matefiaux et Telecommunications 1650 BouL Lionel Boulet Varennes (Quebec) J3X 1S2 Canada Departemen t de Chimie et Biochimie Universite du Quebec a Montreal Mon trial Quebec H3C 3P8 Canada Dept. ofElectricaland Computer Engineering McGill University Montreal Quebec H3A 2A7 Canada Cranfield Health Vincent Building Cranfield University Cranfield Bedfordshire UK

Recent advances in large area graphene growth have led to many applications in different areas. In the present study, chemical vapor deposited （CVD） monolayer graphene supported on glass substrate electrochemical biosensing applications was examined as electrode material for We report a facile strategy for covalent functionalization of CVD monolayer graphene by electrochemical reduction of carboxyphenyl diazonium salt prepared in situ in acidic aqueous solution. The carboxyphenyl-modified graphene is characterized using Raman spectroscopy, X-ray photoelectron spectroscopy （XPS）, and atomic force microscopy （AFM）, as well as electrochemical impedance spectroscopy （hIS）. We also show that the number of grafted carboxyphenyl groups on the graphene surface can be controlled by the number of cyclic voltammetry （CV） scans used for electrografting. We further present the fabrication and characterization of an immunosensor based on immobilization of ovalbumin antibody on the graphene surface after the activation of the grafted carboxylic groups via EDC/NHS chemistry. The binding between the surface-immobilized antibodies and ovalbumin was then monitored using Faradaic EIS in [Fe（CN）6]^3-/4- solution. The percentage change of charge transfer resistance （Rct） after binding exhibited a linear dependence for ovalbumin concentrations ranging from 1.0 pg·mL^-1 to 100 ng·mL^-1, with a detection limit of 0.9 pg·mL^-1. Our results indicate good sensitivity of the developed functionalized CVD graphene platform, paving the way for using CVD monolayer graphene in a variety of electrochemical biosensing devices.

关键词： CVD graphene electrochemical impedance spectroscopy Biosensor diazoniumfunctionalization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Viral inactivation by light

引用

eLight 2022年第1期2卷 237-254页

作者： Mohammad Sadraeian Le Zhang farzaneh Aavani Esmaeil Biazar Dayong Jin Present Address:Institute for Biomedical Materials and Devices(IBMD) Faculty of ScienceUniversity of Technology SydneySydneyNSW 2007Australia Department of Oral and Maxillofacial Surgery Division of Regenerative Orofacial MedicineUniversity Hospital Hamburg-Eppendorf20251 HamburgGermany Department of Biomedical Engineering Islamic Azad UniversityTonekabon BranchTonekabonIran UTS‑SUStech Joint Research Centre for Biomedical Materials&Devices Department of Biomedical EngineeringCollege of EngineeringSouthern University of Science and TechnologyShenzhenGuangdongChina

Nowadays,viral infections are one of the greatest challenges for medical sciences and human *** antiviral compounds and chemical inactivation remain inadequate,physical approaches based on irradiation provide new potentials for prevention and treatment of viral infections,without the risk of drug resistance and other unwanted side *** across the electromagnetic spectrum can inactivate the virions using ionizing and non-ionizing *** review highlights the anti-viral utility of radiant methods from the aspects of ionizing radiation,including high energy ultraviolet,gamma ray,X-ray,and neutron,and non-ionizing photo-inactivation,including lasers and blue light.

关键词： Antiviral therapy Enveloped virus Photo-inactivation Ionizing radiation Nuclear radiations

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of contamination and relative humidity on the function of thyristor voltage monitoring board

引用

High Voltage 2022年第6期7卷 1165-1174页

作者： Zichen Liu Liming Wang Hongwei Mei Bin Cao Fanghui Yin Yongsheng Xu Fuzeng Zhang Yi Jiang Masoud farzaneh Shenzhen International Graduate School Tsinghua UniversityShenzhenChina Electric Power Research Institute China Southern Power Grid Co.LtdGuangzhouChina Department of Applied Sciences University of Quebec at ChicoutimiChicoutimiQuebecCanada

In recent years,shutdown accidents caused by thyristor voltage monitoring(TVM)board failure have occurred several times in converter *** the increase of operation time,the working reliability problem of TVM board becomes a challenge to the safe *** paper studies the effects of pollution severity and relative humidity(RH)on the function of TVM *** results show that the increase of RH can lead to the advance or even disappearance of check-back ***,the increase of pollution severity can decrease the failure RH *** simulation and equivalent experiment,it is verified that the resistance decrease of the voltage balancing resistor under the combined effect of contamination and RH is the main reason for the advance of check-back *** to the experiments,it is found that the upper surface contamination has a greater effect on the function of TVM board than the lower surface contamination,resulting in more decrease of the failure RH *** addition,leakage current at different RH is also *** show that the pulse peak of leakage current is closely related to check-back *** the pulse peak is too small or disappears,check-back signals also disappear,indicating that the TVM board fails.

关键词： function humidity TVM

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Vitamin D therapy in pediatric patients with inflammatory bowel disease:a systematic review and meta-analysis

引用

World Journal of Pediatrics 2023年第1期19卷 48-57页

作者： Mohammad Hassan Sohouli Fatemeh Farahmand Hosein Alimadadi Parisa Rahmani farzaneh Motamed Elma Izze da Silva Magalhaes Pejman Rohani Pediatric Gastroenterology and Hepatology Research Center Pediatrics Centre of ExcellenceChildren's Medical CenterTehran University of Medical SciencesTehranIran Department of Clinical Nutrition and Dietetics Faculty of Nutrition and Food TechnologyShahid Beheshti University of Medical SciencesTehranIran Postgraduate Programme in Collective Health Federal University of MaranhaoRua Barao de Itapary155CentroSao LuísMABrazil Pediatrics Gastroenterology Department of PediatricsSchool of MedicineChildren's Medical CenterTehran University of Medical SciencesTehranIran

Background There is some evidence for the role of vitamin D deficiency in the pathogenesis of inflammatory bowel disease(IBD)in the pediatric ***,the results are ***,we have conducted a systematic review and meta-analysis to evaluated the effect of vitamin D on pediatric patients with *** We carried out a systematic search in databases from inception until 20 January *** included all relevant articles that evaluate the efficacy and safety of vitamin D on disease activity,inflammatory factors,and vitamin D and calcium levels in pediatric patients with *** effects models were used to combine the *** main outcomes were then analyzed using weight mean difference(WMD)and respective 95%confidence interval(CI).Results Fifteen treatment arms met the eligibility criteria and were *** estimates indicated that intervention with vitamin D has a significantly beneficial effect on 25-hydroxy vitamin D3[25(OH)D3](pooled WMD of 17.662 ng/mL;CI 9.77-25.46;P<0.001),calcium(pooled WMD of 0.17 mg/dL;CI 0.04-0.30;P=0.009),and inflammatory factors including C-reactive protein(CRP)(pooled WMD of-6.57 mg/L;CI-11.47 to-1.67;P=0.009)and erythrocyte sedimentation rate(ESR)(pooled WMD of-7.94 mm/h;CI-12.65 to-3.22;P=0.001)*** addition,this effect was greater for vitamin D levels at doses greater than 2000 IU,and when follow-up duration was more than 12 *** This study showed that vitamin D therapy can have a significant and beneficial effect on 25(OH)D3,calcium,and inflammatory factors in children and adolescents with IBD.

关键词： Disease activity index Inflammation Meta-analysis IBD Pediatric Vitamin D

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A case report of prenatally detected achondrogenesis typeⅡ with an occipital cephalocele

引用

Asian pacific Journal of Reproduction 2017年第5期6卷 238-240页

作者： Behnaz Moradi Khadijeh Adabi Mohamad Ali Kazemi farzaneh Fattahi Masrour Department of Radiology Women HospitalTehran University of Medical SciencesTehranIran Department of Obstetrics and Gynecology Women HospitalTehran University of Medical SciencesTehranIran Department of Radiology Amiralam HospitalTehran University of Medical SciencesTehranIran Rastaak Sonography Center TehranIran

Achondrogenesis is a very rare lethal skeletal disorder. Here we describe a case of prenatally diagnosed achondrogenesis typeⅡ in a 28 year-old woman at (17+4) wk. She had history of 5 first trimester missed abortions. The couple is consanguineous. Ultrasonography showed extreme micromelia, short neck and trunk, large head and prominent abdomen. Delayed ossification in sacral bones was detected and ossification of pubic rami was poor. There were associated large cystic hygroma, anasarca and also high occipital cephalocele. Posterior fossa was normal. Mild hypothelorism, depressed nasal bridge, low set ear and mild retrognathia were identified too. Amniocentesis result was compatible with a normal female fetus. Post mortem whole body radiography confirmed the diagnosis. To our knowledge, this is the second case report with association of cephalocele and achondrogenesis typeⅡ.

关键词： Achondrogenesis typeⅡ Cephalocele Cystic hygroma Lethal skeletal dysplasia

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

介孔硅铝分子筛的合成、表征及其作为固体酸催化苯酚与1-辛烯的烷基化反应

引用

催化学报 2007年第4期28卷 357-363页

作者： Zahra MEHRABAN Faezeh farzaneh Mehdi GHANDI Alireza ABBASI 埃尔扎哈卡大学化学系德黑兰大学理学院化学系

以异丙醇铝、硅酸四乙酯和十六烷基三甲基溴化胺为原料,以乙酰丙酮为螯合剂,采用溶胶-凝胶法合成了硅铝比分别为25,50,100和150的介孔硅铝分子筛,并用其催化苯酚与1-辛烯的液相烷基化反应.X射线衍射、N2吸附、高分辨透射电镜及27Al核磁... 详细信息

以异丙醇铝、硅酸四乙酯和十六烷基三甲基溴化胺为原料,以乙酰丙酮为螯合剂,采用溶胶-凝胶法合成了硅铝比分别为25,50,100和150的介孔硅铝分子筛,并用其催化苯酚与1-辛烯的液相烷基化反应.X射线衍射、N2吸附、高分辨透射电镜及27Al核磁共振光谱表征结果表明,该介孔分子筛具有蠕虫状骨架结构.在160℃时,硅铝比为25的介孔硅铝分子筛催化剂上苯酚可以完全转化为单烷基苯酚.

关键词：介孔硅铝分子筛溶胶-凝胶法乙酰丙酮苯酚 1-辛烯烷基化

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Circulating tumor DNAs and non-coding RNAs as potential biomarkers for hepatocellular carcinoma diagnosis, prognosis and response to therapy

引用

Hepatoma Research 2019年第2期5卷 12-33页

作者： Paola Guerriero farzaneh Moshiri Laura Lupini Silvia Sabbioni Massimo Negrini Elisa Callegari Department of Morphology Surgery and Experimental MedicineUniversity of FerraraFerrara 44121Italy Department of Molecular Medicine School of Advanced Technologies in MedicineTehran University of Medical SciencesTehran 11369Iran Department of Life Sciences and Biotechnologies University of FerraraFerrara 44121Italy

Hepatocellular carcinoma(HCC)is the second leading cause of cancer-related deaths worldwide and despite improvement in therapeutic approaches,prognosis remains *** can be partly attributed to the fact that the majority of HCCs are diagnosed at intermediate or advanced *** of circulating biomarkers able to detect HCC at early stages could improve patients'*** present,however,alpha fetoprotein or des-g-carboxyprothrombin are unable to reliably detect HCC at early stages and better circulating biomarkers are *** tumor DNA(ctDNA)and non-coding RNAs(ncRNAs)are emerging as promising biomarkers to achieve the *** and epigenetic alterations in ctDNA allow to pinpoint tumor-specific biomarkers,reveal tumor heterogeneity,help monitor tumor evolution over time and assess therapy *** remains to be fully evaluated the possibility of detecting these biomarkers at early tumor *** ncRNAs are quantitative biomarkers with potential use in diagnostic,prognostic and predictive clinical *** may help to reveal HCC at early ***,because of heterogeneous and sometimes conflicting reported results,they still require validation and standardization of pre-analytical and analytical approaches before clinical applications could be envisaged.

关键词： Liquid biopsy hepatocellular carcinoma circulating tumor DNA non-coding RNA diagnosis prognosis therapy response

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neuroprotective effects of the immunomodulatory drug Setarud on cerebral ischemia in male rats

引用

Neural Regeneration Research 2012年第27期7卷 2085-2091页

作者： farzaneh Vafaee Nasser Zangiabadi Fatemeh Mehdi Pour farzaneh Dehghanian Majid Asadi-Shekaari Hossein Karimi Afshar Neuroscience Research Center Department of Physiology School of Medicine Mashhad University of Medical SciencesMashhadIran Neuroscience Research Center Kerman University of Medical SciencesKerman Iran Member of Research Committee Kerman University of Medical SciencesKerman Iran

immunomodulary drug Setarud, which is composed of herbal extracts including Rosa canina, Urtica dioica and Tanacetum vulgare, supplemented with selenium exhibits anti-inflammatory and anti-oxidant properties. Therefore, we hypothesized that Setarud will have a neuroprotective effect against ischemic cerebral injury. To validate this hypothesis, rats were intraperitoneally administered with 0.66 mL/kg Setarud for 30 minutes after middle cerebral artery occlusion. Triphenyltetrazolium chloride staining showed that Setarud could reduce cerebral infarct volume of rats subjected to cerebral ischemia. Transmission electron microscopy and hematoxylin-eosin staining results showed that Setarud could alleviate the degenerative changes in cortical neurons of rats with cerebral ischemia. The inclined plate test and prehensile test showed that Setarud could significantly improve the motor function of rats with cerebral ischemia. These findings suggest that Setarud shows neuroprotective effects against ischemic brain injury.

关键词： immunomodulatory drug stroke prehensile test antioxidant inclined plate test cerebral infarct cortex neuroprotection brain injury neural regeneration

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Developing grey-box model to diagnose asphaltene stability in crude oils: Application of refractive index

引用

Petroleum 2016年第4期2卷 369-380页

作者： Mahdi Zeinali Hasanvand Mohammad Ali Ahmadi Reza Mosayebi Behbahani farzaneh Feyzi Department of Chemical Engineering Ahwaz Faculty of Petroleum EngineeringPetroleum University of TechnologyAhwazIran Department of Petroleum Engineering Ahwaz Faculty of Petroleum EngineeringPetroleum University of TechnologyAhwazIran Department of Chemical Engineering Iran University of Science and TechnologyTehranIran

Asphaltene precipitation can cause serious problems in petroleum industry while diagnosing the asphaltene stability conditions in crude oil system is still a challenge and has been subject of many *** monitor and diagnose asphaltene stability,high performance intelligent approaches based bio-inspired science like artificial neural network which have been optimized by various optimization techniques have been carried *** main purpose of the implemented optimization algorithms is to decide high accurate interconnected weights of proposed neural network *** proposed intelligent approaches are examined by using extensive experimental data reported in open ***,to highlight robustness and precision of the addressed approaches,two different regression models have been developed and results obtained from the aforementioned intelligent models and regression approaches are compared with the corresponding refractive index data measured in *** on the results,hybrid of genetic algorithm and particle swarm optimization have high performance and average relative absolute deviation between the model outputs and the relevant experimental data was found to be less than 0.2%.Routs from this work indicate that implication of HGAPSO-ANN in monitoring refractive index can lead to more reliable estimation of addressed issue which can lead to design of more reliable phase behavior simulation and further plans of oil production.

关键词： Asphaltene Refractive index Stability Evolutionary algorithm Neural network

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

White-box machine-learning models for accurate interfacial tension prediction in hydrogen-brine mixtures

引用

Clean Energy 2024年第5期8卷 252-264页

作者： Qichao Lv Jinglei Xue Xiaochen Li farzaneh Rezaei Aydin Larestani Saeid Norouzi-Apourvari Hadi Abdollahi Abdolhossein Hemmati-Sarapardeh College of Carbon Neutral Energy China University of Petroleum(Beijing)BeijingChina Unconventional Petroleum Research Institute China University of Petroleum(Beijing)BeijingChina CNPC Bohai Drilling Engineering Company Limited TianjinChina Department of Petroleum Engineering Amirkabir University of TechnologyTehranIran Department of Petroleum Engineering Shahid Bahonar University of KermanKermanIran

The severity of climate change and global warming necessitates the need for a transition from traditional hydrocarbon-based energy sources to renewable energy *** intrinsic challenge with renewable energy sources is their intermittent nature,which can be addressed by transforming excess energy into hydrogen and storing it safely for future *** securely store hydrogen underground,a comprehensive knowledge of the interactions between hydrogen and residing fluids is *** tension is an important variable influenced by cushion gases such as CO_(2) and *** research developed explicit correlations for approximating the interfacial tension of a hydrogen–brine mixture using two advanced machine-learning techniques:gene expression programming and the group method of data *** interfacial tension of a hydrogen–brine mixture was considered to be heavily influenced by temperature,pressure,water salinity,and the average critical temperature of the gas *** results indicated a higher performance of the group method of data handling-based correlation,showing an average absolute relative error of 4.53%.Subsequently,Pearson,Spearman,and Kendall methods were used to assess the influence of individual input variables on the outputs of the *** showed that the temperature and the average critical temperature of the gas mixture had considerable inverse impacts on the estimated interfacial tension ***,the reliability of the gathered databank and the scope of application for the proposed correlations were verified using the leverage approach by illustrating 97.6%of the gathered data within the valid range of the Williams plot.

关键词： underground hydrogen storage interfacial tension cushion gas correlation gene expression programming group method of data handling

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：