Microfludic Chips for High-throughput Single-cell Analysis with Hydrodynamic focusing

来源 :第一届国际微纳尺度生物医学分离和分析技术学术会议暨第六届全国微全分析学术会议 | 被引量 : 0次 | 上传用户:money51
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
@@A microfluidic system for high-throughput single-cell analysis is described, with functional integration of continuous introduction of individual cells, rapid dynamic lysis, and capillary electrophoretic (CE) separation with laser induced fluorescence (LIF) detection. A cross microfluidic chip with two sheath-flow channels located on the both sides of the sampling channel was developed. The labeled cells were hydrodynamically focused by sheath-flow streams and sequentially introduced into the cross section by the hydrostatic pressure created by adjusting liquid levels in the reservoirs. Combined with the electric filed applied on the separation channel, the aligned cells were driven into the separation channel and rapid lysed within 33 ms at the entry of separation channel the by Triton X-100 added in the sheath-flow solution (Fig.1). The maximum rate for introduction of individual cells into the separation channel was about 150 cells /min. The introduction of sheath-flow streams also significantly reduced the concentration of phosphate-buffered saline (PBS) injected into the separation channel along with single cells, thus reducing Joule heating during electrophoresis. The microfluidic system was evaluated by analysis of GSH and ROS in single erythrocytes (Fig.2). A throughput of 38 samples/min was obtained. The proposed method is simple, easy to use and high-throughout, allows the analysis of cell populations of considerable sizes to generate the results with statistical significance.
其他文献
  本研究应用微米级二氧化钛微球对经SCX 预分离的小鼠肝癌细胞株Hepa1-6 全蛋白酶解产物多个流份进行磷酸化肽段的富集,联合应用LC和质谱鉴定技术检测与信号通路密切相关的
@@Electrogenerated chemiluminescence (ECL) is light-emitting phenomenon involving in electrochemical reaction. It is an attractive detection technique for mircr
会议
随着我国经济的发展和技术水平的提升,我国企业面临全新的发展机遇,必须采取合理的措施提升自身的管理水平,从而在新形势下进步发展.企业的成本管理是企业管理的重要环节,相
义务教育是我国提高国民综合素质、实现人才兴国的重要手段.学校在九年一贯制义务教育方面发挥着十分重要且突出的作用.随着我国教育事业的不断发展、教育环境的不断完善,学
从未进过医学院校,也不用消毒剂、麻醉药和缝合手术,仅凭他的超能力,就能轻松地施行各种外科手术,医治了许多令医学专家们棘手的顽疾,他的“医术”令拉美地区的医学界震惊。
  本文制作了一种用于微通道内流体流动和相变三维动态观测的集成微流控芯片。一个微型半导体制冷片被埋入芯片中用于控制相变阀的开合;两条光纤被插入芯片中用于将激发光导
  微流控技术的发展为研制新型的浓度梯度发生装置提供了新的机遇。本文报道了一种大跨度浓度梯度芯片,基于层流扩散原理,在微通道网络中,通过多级分配和混合过程,产生系列浓度
@@An in vitro method by using microfludic chip was reported to investigate the cellular uptake of FITC-doped SiO2 nano-particles to simulate the in vivo blood f
会议
  了解纳米限域空间对离子传输性质的影响具有重要的意义。它可以帮助我们构建刺激响应器件、揭示生物分子在纳米空间的行为、甚至实现单分子分析。本工作在纳米多孔氧化铝
人才是社会进步的源泉,是企业创新的主体。随着社会、行业的发展,施工企业技术人才队伍特点及功能在不断的发生着改变。如何从企业角度出发,全面推进人才队伍建设,使之适应社会、行业及企业发展的要求,是摆在我们面前急需解决的问题。  一、人才队伍对施工企业造成的可持续发展影响  (一)企业用人理念不新  近几年施工企业虽然对人才越来越重视,但仍存在重引进、轻培养,重产出、轻激励的现象,仍然使用传统的人事管理
期刊