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Simultaneous Quanti...
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Zhang, Xin-WeiGothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
(författare)
Simultaneous Quantification of Vesicle Size and Catecholamine Content by Resistive Pulses in Nanopores and Vesicle Impact Electrochemical Cytometry
- Artikel/kapitelEngelska2020
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2020-02-18
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American Chemical Society (ACS),2020
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LIBRIS-ID:oai:gup.ub.gu.se/291953
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https://gup.ub.gu.se/publication/291953URI
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https://doi.org/10.1021/jacs.9b13221DOI
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We have developed the means to simultaneously measure the physical size and count catecholamine molecules in individual nanometer transmitter vesicles. This is done by combining resistive pulse (RP) measurements in a nanopore pipet and vesicle impact electrochemical cytometry (VIEC) at an electrode as the vesicle exits the nanopore. Analysis of freshly isolated bovine adrenal vesicles shows that the size and internal catecholamine concentration of vesicles varies with the occurrence of a dense core inside the vesicles. These results might benefit the understanding about the vesicles maturation, especially involving the "sorting by retention" process and concentration increase of intravesicular catecholamine. The methodology is applicable to understanding soft nanoparticle collisions on electrodes, vesicles in exocytosis and phagocytosis, intracellular vesicle transport, and analysis of electroactive drugs in exosomes.
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Hatamie, AmirGothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
(författare)
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Ewing, Andrew G,1957Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology(Swepub:gu)xewian
(författare)
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Göteborgs universitetInstitutionen för kemi och molekylärbiologi
(creator_code:org_t)
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Ingår i:Journal of the American Chemical Society: American Chemical Society (ACS)142:9, s. 4093-40970002-78631520-5126
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