Effect of concentration gradient on ionic current rectification in polyethyleneimine modified glass nano-pipettes
Ion current rectification dependent on the concentration gradient of KCl solutions was systematically investigated in polyethyleneimine modified glass nano-pipettes with inner diameter of 105 nm. Peak shape dependence of the rectification factor on outer KCl solution concentration was observed when...
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| Veröffentlicht in: | Scientific reports 2014-02, Vol.4 (1), p.4005, Article 4005 |
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| creator | Deng, Xiao Long Takami, Tomohide Son, Jong Wan Kang, Eun Ji Kawai, Tomoji Park, Bae Ho |
| description | Ion current rectification dependent on the concentration gradient of KCl solutions was systematically investigated in polyethyleneimine modified glass nano-pipettes with inner diameter of 105 nm. Peak shape dependence of the rectification factor on outer KCl solution concentration was observed when inner KCl solution with concentration from 1 mM to 500 mM was used. The peak shape dependence was also observed when the concentrations of the inner and outer KCl solutions were identically controlled. The peak shape in the ion current rectification could be explained by the ion conductance changes through the conical nano-pipette, which result from modulation of ion concentration. |
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Peak shape dependence of the rectification factor on outer KCl solution concentration was observed when inner KCl solution with concentration from 1 mM to 500 mM was used. The peak shape dependence was also observed when the concentrations of the inner and outer KCl solutions were identically controlled. 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All rights reserved</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c504t-ff49f6b7fce93a0b908083a5f489dc47b45ec3394a412f6c6770e861afbba56a3</citedby><cites>FETCH-LOGICAL-c504t-ff49f6b7fce93a0b908083a5f489dc47b45ec3394a412f6c6770e861afbba56a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3915318/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3915318/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,724,777,781,861,882,27906,27907,41102,42171,51558,53773,53775</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24500036$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Deng, Xiao Long</creatorcontrib><creatorcontrib>Takami, Tomohide</creatorcontrib><creatorcontrib>Son, Jong Wan</creatorcontrib><creatorcontrib>Kang, Eun Ji</creatorcontrib><creatorcontrib>Kawai, Tomoji</creatorcontrib><creatorcontrib>Park, Bae Ho</creatorcontrib><title>Effect of concentration gradient on ionic current rectification in polyethyleneimine modified glass nano-pipettes</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>Ion current rectification dependent on the concentration gradient of KCl solutions was systematically investigated in polyethyleneimine modified glass nano-pipettes with inner diameter of 105 nm. 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| subjects | 119/118 147/135 639/766/119/544 639/766/94 Conductance Electric Conductivity Glass - chemistry Humanities and Social Sciences Ions Ions - chemistry multidisciplinary Nanopores Nanostructures Osmolar Concentration Polyethyleneimine Polyethyleneimine - chemistry Potassium chloride Potassium Chloride - chemistry Science Surface Properties |
| title | Effect of concentration gradient on ionic current rectification in polyethyleneimine modified glass nano-pipettes |
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