scholarly journals Determination of the mobility of amine- and carboxy-terminated fluospheres and quantum dots by capillary electrophoresis

2016 ◽  
Vol 94 (4) ◽  
pp. 430-435 ◽  
Author(s):  
Amy Tekrony ◽  
David Cramb

The pharmacokinetics of nanoparticle (NP) theranostics can, in principle, be predicted based on NP size and zeta potential. Zeta potentials are typically measured using bench top zetasizer instruments, which calculate zeta potential based on mobility data collected from solutions in a small sample cell. However, correlations between zeta potentials measured by zetasizer instruments and those calculated from mobilities determined by instruments designed for capillary electrophoresis may not be direct. To that end, mobilities of a variety of NPs were determined by a capillary electrophoresis and used to calculate zeta potentials based on Henry’s equation. The calculated zeta potentials were then compared to zeta potentials measured directly from a zetasizer. It was found that absolute values of the two methods differed, but the relative zeta potential trends per particle type were similar. These trends were demonstrated by data that showed that the zeta potentials measured using a zetasizer correlated highly with zeta potentials determined by capillary electrophoresis.

1963 ◽  
Vol 18 (6) ◽  
pp. 1263-1264 ◽  
Author(s):  
R. E. Beck ◽  
V. Mirkovitch ◽  
P. G. Andrus ◽  
R. I. Leininger

A system was developed to measure the streaming potential generated between the ends of a capillary by the flow of a fluid through the capillary. Zeta potential can be calculated from the streaming potential. Adequate sensitivity and reproducibility were achieved by making special electrodes: silver wires plated in KCl solution and embedded in agar, careful electrical shielding, and provision for reversal of flow through the capillary to minimize electrode errors. The apparatus was developed to measure streaming potentials generated by either RingerS's solution or blood in contact with capillaries made of different materials such as quartz, polyethylene, etc. An example of a determination using a quartz capillary is presented. interfaces; blood; salt solutions; glass; quartz Submitted on February 25, 1963


2019 ◽  
Vol 146 ◽  
pp. 582-587 ◽  
Author(s):  
Raybel Muñoz ◽  
Alfredo Guevara-Lara ◽  
Joao L.M. Santos ◽  
Jose M. Miranda ◽  
Jose A. Rodriguez

2015 ◽  
Vol 36 (6) ◽  
pp. 867-874 ◽  
Author(s):  
Ivona Voráčová ◽  
Karel Klepárník ◽  
Marcela Lišková ◽  
František Foret

2009 ◽  
Vol 647 (2) ◽  
pp. 219-225 ◽  
Author(s):  
Yong-Qiang Li ◽  
Hai-Qiao Wang ◽  
Jian-Hao Wang ◽  
Li-Yun Guan ◽  
Bi-Feng Liu ◽  
...  

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