Combination of Microfluidic Devices with Mass Spectrometry and Fluorescence Imaging for Cell Analysi

来源 :第九届全国微全分析系统学术会议、第四届全国微纳尺度生物分离分析学术会议、2014国际微流控芯片与微纳尺度生物分离分析学术 | 被引量 : 0次 | 上传用户:xp108999
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In this work,we developed a new technology by the combination of microfluidic device with mass spectrometry for the study of cell drug metabolism and cell-cell information exchange.The microfluidic device contains two different functional units:(1) a circular cell culture chamber;(2) a micro-solid phase extraction channel for sample cleanup and concentration prior to mass analysis.By connecting the two separated microchannels with polyethylene tubes,drug metabolism studies related to functional units,containing cell culture,metabolism generation,sample pretreatment and detection were all integrated into a microfluidic device.
其他文献
The interaction between naringenin and human serum albumin was carried out under physiological conditions via fluorescence spectroscopy and electrochemical measurements.The experimental results demons
尽管氧化石墨烯早在155年前就被制备出来[1],然而直到近些年来,才因其一些优越的特性如良好的电导性、更高的机械功能和耐热功能、超强的分散性及两亲性等[2],应用到电子、催化、生物医药等方面的研究中,引起广泛关注,且目前已有将其共聚到甲基丙烯酸为单体的整体柱中并成功实现中性芳香烃类样品电色谱分离的报道[2]。借鉴于毛细管柱蛋白分离的经验[3],我们将石墨烯共聚到丙烯酰胺类整体柱中以求提高色谱分离的
We present a unique electrochemical method for monodisperse bubble generation on a microfluidic chip and demonstrate its application in determination of liquid surface tension.Efficient generation of
A hybrid organic-inorganic monolith functionalized with mercapto(-SH)groups was synthesized by a two-step acid/base-catalyzed hydrolysis/concondensation of tetraethoxysilane and 3-mercaptopropyltrimet
A micro-/nano-fluidic device was designed and used to quantify highly reactive oxygen species(hROS)in the mainstream of cigarette smoke(CS)based on surface plasmon resonance-enhanced fluorescence(SPRE
亲水作用色谱(HILIC)是采用极性强的固定相和极性相对弱的含水流动相进行分离的一种色谱模式,其作为反相液相色谱的重要补充,是解决极性和亲水性化合物的分离问题的重要方法.此外,作为一种有效的样品预处理方法,基于亲水作用机理的固相萃取技术(HILIC-SPE)被广泛地应用于糖基化肽的富集[1,2].但是,该方法应用于极性小分子化合物的样品预处理方面,报道较少[3].HILIC-SPE作为样品预处理的
缺血性心脏病是目前一大研究热点。传统的缺氧模型大多直接使用培养箱控制氧气浓度达到缺氧效果[1],这种方法虽然简单,但不能形成浓度梯度,亦无法实现特定位点氧含量的实时在线检测。经典二叉树结构虽可实现氧气梯度的灵活调节[2],但芯片结构复杂,制作困难,可利用性低。本课题组设计、发展了基于吸氧反应和气体扩散的集成氧气浓度梯度的微流控芯片装置,建立了芯片上的心肌缺氧模型,应用于细胞层面在线培养、梯度缺氧及
It is well established that individual cells differ from each other in many aspects due to stochastic biological processes and differences in environmental perturbations.However,the underlying biochem
Glioblastoma multiforme is the most common brain cancer,and has been got much attention as its resistance to radiotherapy and chemotherapy,easy to relapse,high mortality rate and low survival rate.The
本研究了建立一种新型结合聚合酶链式反应(PCR),限制性片段多态性(RFLP)分析和芯片电泳检测的人乳头状瘤病毒(HPV)自动分型方法,用于高效,高通量,高灵敏辅助宫颈癌的早期筛查和诊断以及HPV相关流行病调查。方法以46种HPV类型为对象,人宫颈癌细胞为模型建立PCR-RFLP-MCE自动分型的方法,并与细胞学检查和DNA测序方法对比,考察其在临床宫颈脱落细胞样品中的检测结果。结果 检测结果信号