Enhancement of surface adsorption-desorption rates in microarrays invoking surface charge heterogeneity

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• 作者：Mojtaba Abdollahzadeh^a ; ^{abdollahzadehm@alum.sharif.edu}Author Vitae ; Mohammad Said Saidi^a ; ^{mssaidi@sharif.edu}Author Vitae ; Arman Sadeghi^b ; ^{a.sadeghi@eng.uok.ac.ir}Author Vitae
• 关键词：Electroosmotic flow ; Microarray ; Mass transport ; Surface reaction ; Numerical modeling
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：242
• 期：Complete
• 页码：956-964
• 全文大小：2992 K
• 卷排序：242

文摘

Influences of non-uniform wall characteristics on surface reaction rates in an electrokinetic microarray are studied. The problem is handled using a finite-volume-based numerical approach. Uniform, sinusoidal, and pulse-like distributions of the zeta potential are considered. The results reveal that the surface heterogeneity can reduce the saturation time by more than 60%.