期刊論文

學年 103
學期 1
出版(發表)日期 2014-10-01
作品名稱 Diffusiophoresis of a pH-regulated, zwitterionic polyelectrolyte in a solution containing multiple ionic species
作品名稱(其他語言)
著者 Tseng, Shiojenn; Su, Chun-Yuan; Hsu, Jyh-Ping
單位 淡江大學數學學系
出版者 Kidlington: Pergamon Press
著錄名稱、卷期、頁數 Chemical Engineering Science 118, pp.164-172
摘要 The diffusiophoresis of a pH-regulated, zwitterionic polyelectrolyte (PE) simulating entities such as DNAs, proteins, and synthetic polymeric particles in a solution containing multiple ionic species is modeled theoretically. The results of numerical simulation reveal that the diffusiophoretic behavior of the PE is influenced significantly by its physicochemical properties, the solution pH, the bulk salt concentration, and the types of ionic species. In particular, both the magnitude and the sign of the PE mobility are influenced appreciably by the bulk salt concentration and the types of ionic species. We show that the induced electric field coming from the applied concentration gradient is weakened by the movement of H+ and OH−. This phenomenon is more appreciable when pH is away from the isoelectric point of a PE. The results obtained provide valuable and necessary information for the design of diffusiophoresis devices.
關鍵字 Diffusiophoresis;Polyelectrolyte;pH-regulated and zwitterionic;Multiple ionic species
語言 en
ISSN 0009-2509
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Hsu, Jyh-Ping
審稿制度
國別 GBR
公開徵稿
出版型式 ,紙本
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