کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
609760 880629 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Concentrating molecules in a simple microchannel
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Concentrating molecules in a simple microchannel
چکیده انگلیسی

A simple method is proposed and tested to concentrate sample molecules from a dilute solution in a microchannel by electrokinetic means. The microfluidic chip has a straight microchannel connecting two wells and three electrodes. This method uses electrokinetic trapping and flow control simultaneously to concentrate a charged species of interest. A numerical model of the sample concentration process is presented in this paper. Using a fluorescent dye as the sample molecules, experimental investigation into the concentration process was performed. The 90 times of the concentration increase was achieved in 110 s. The numerical simulations of the concentrating and the subsequent dispensing processes agree well with the experimental results.

Concentrating sample molecules from a dilute solution in a microfluidic channel by electrokinetic means.Figure optionsDownload high-quality image (72 K)Download as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 347, Issue 2, 15 July 2010, Pages 324–331
نویسندگان
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