Gold nanoparticles dispersion stability under dynamic coating conditions in capillary zone electrophoresis

Szymon Dziomba , Krzesimir Ciura , Paulina Kocialkowska , Adam Prahl , Bartosz Wielgomas


Capillary zone electrophoresis (CZE) of unmodified gold nanoparticles (Au NPs) was investigated in terms of dispersion stability in a presence of buffering counter-ions in background electrolyte (BGE). Capillary length, migration time and electric field strength were identified among factors influencing particles CZE. Moreover, BGE electrolysis was found to significantly affect analyses repeatability. The adsorption of NPs to capillary wall was recognized as the main problem. It was shown that this inconvenience can be overcome by the application of relatively big counter-ions. According to this observation, steric stabilization of NPs suspension by BGE components during CZE was hypothesized. In result, repeatable CZE of bare Au NPs under dynamic coating conditions was shown.
Author Szymon Dziomba - [Gdanski Uniwersytet Medyczny]
Szymon Dziomba,,
- Gdanski Uniwersytet Medyczny
, Krzesimir Ciura - [Gdanski Uniwersytet Medyczny]
Krzesimir Ciura,,
- Gdanski Uniwersytet Medyczny
, Paulina Kocialkowska - [Gdanski Uniwersytet Medyczny]
Paulina Kocialkowska,,
- Gdanski Uniwersytet Medyczny
, Adam Prahl (FCh / DOCh / LChB)
Adam Prahl,,
- Laboratory of Chemistry of Biopolymers
, Bartosz Wielgomas - [Gdanski Uniwersytet Medyczny]
Bartosz Wielgomas,,
- Gdanski Uniwersytet Medyczny
Journal seriesJournal of Chromatography A, ISSN 0021-9673, (A 40 pkt)
Issue year2018
Publication size in sheets0.5
Keywords in Englishadsorption, aggregation, electrolysis, nanoparticles, stability
ASJC Classification2700 General Medicine; 1303 Biochemistry; 1308 Clinical Biochemistry; 1313 Molecular Medicine; 1602 Analytical Chemistry; 1605 Organic Chemistry
Languageen angielski
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 03-04-2020, ArticleFromJournal
Publication indicators WoS Citations = 5; Scopus Citations = 6; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.167; WoS Impact Factor: 2018 = 3.858 (2) - 2018=3.741 (5)
Citation count*6 (2020-03-25)
Share Share

Get link to the record

* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
Are you sure?