中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Electrical Control of Individual Droplet Breaking and Droplet Contents Extraction
作者: Zeng, Shaojiang1;  Pan, Xiaoyan1;  Zhang, Qingquan1;  Lin, Bingcheng1;  Qin, Jianhua1
刊名: ANALYTICAL CHEMISTRY
发表日期: 2011-03-15
DOI: 10.1021/ac1028775
卷: 83, 期:6, 页:2083-2089
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: The controllable extraction of the contents from an individual droplet is very important for the analysis and further processing of droplets. Most of the available methods lack the control and flexibility over the extraction of droplet contents. Here, we present a novel electrical-based method that can selectively break a droplet and extract its contents into aqueous buffer in a controllable manner on a microfluidic device. The device consisted of two layers, in which the top layer was modified to be hydrophobic for droplet generation and the bottom layer modified to be hydrophilic for maintaining aqueous buffer. A stable oil/water interface was formed at the intersection of the two layers where the oil and aqueous buffer met. When a droplet flew through the oil/water interface, a voltage was applied in the aqueous buffer. The generated electro-osmotic flow in the aqueous buffer and the electric field facilitated the breaking of the water/oil interface between the droplet and aqueous buffer, promoting the breaking of the droplet and a transient coalescence of the droplet with aqueous buffer. During the transient coalescence, droplet contents could be extracted into aqueous buffer. The amount of the droplet contents extracted into the aqueous buffer could be controlled by varying the strength of the electric field, and the droplet still existed and could be further processed after complete extraction of the droplet contents. This method could be used for droplet analysis and may provide a way to perform complex fluid handling in a droplet.
关键词[WOS]: IONIZATION-MASS-SPECTROMETRY ;  MICROFLUIDIC DEVICES ;  ELECTROPHORETIC ANALYSIS ;  SEGMENTED FLOW ;  MICRODROPLETS ;  SYSTEM ;  SCALE ;  CHIP ;  SURFACTANTS ;  CHEMISTRODE
语种: 英语
WOS记录号: WOS:000288182900030
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142379
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Biotechnol, Dalian, Peoples R China

Recommended Citation:
Zeng, Shaojiang,Pan, Xiaoyan,Zhang, Qingquan,et al. Electrical Control of Individual Droplet Breaking and Droplet Contents Extraction[J]. ANALYTICAL CHEMISTRY,2011,83(6):2083-2089.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Zeng, Shaojiang]'s Articles
 [Pan, Xiaoyan]'s Articles
 [Zhang, Qingquan]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Zeng, Shaojiang]‘s Articles
 [Pan, Xiaoyan]‘s Articles
 [Zhang, Qingquan]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace