Karim, S. ; Ensinger, Wolfgang ; Mujahid, S. A. ; Maaz, K. ; Khan, E. U. (2009)
Effect of etching conditions on pore shape in etched ion-track polycarbonate membranes.
In: Radiation Measurements, 44 (9-10)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We have undertaken a systematic investigation of the influence of methanol and applied transmembrane potential on the shape of conical pores produced by the track-etch technique. Heavy ion tracks in polycarbonate foils were chemically etched in an electrolytical cell under various conditions (different methanol content in the etchant, and applied potentials). It is found that the cone angle of the conical nanopore is dependent on the amount of methanol present in an alkaline etching solution as well as on the applied transmembrane potential. A combination of both these techniques is proposed to obtain conical nanopore with more exaggerated base opening. Controlling these conditions provide a route to fabricate controlled shape pores in polycarbonate membranes that have potential applications in a wide array of fields.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2009 |
| Autor(en): | Karim, S. ; Ensinger, Wolfgang ; Mujahid, S. A. ; Maaz, K. ; Khan, E. U. |
| Art des Eintrags: | Bibliographie |
| Titel: | Effect of etching conditions on pore shape in etched ion-track polycarbonate membranes |
| Sprache: | Englisch |
| Publikationsjahr: | Oktober 2009 |
| Verlag: | Elsevier Science Publishing Company |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Radiation Measurements |
| Jahrgang/Volume einer Zeitschrift: | 44 |
| (Heft-)Nummer: | 9-10 |
| URL / URN: | http://www.sciencedirect.com/science/article/B6TVS-4XHM1F1-4... |
| Kurzbeschreibung (Abstract): | We have undertaken a systematic investigation of the influence of methanol and applied transmembrane potential on the shape of conical pores produced by the track-etch technique. Heavy ion tracks in polycarbonate foils were chemically etched in an electrolytical cell under various conditions (different methanol content in the etchant, and applied potentials). It is found that the cone angle of the conical nanopore is dependent on the amount of methanol present in an alkaline etching solution as well as on the applied transmembrane potential. A combination of both these techniques is proposed to obtain conical nanopore with more exaggerated base opening. Controlling these conditions provide a route to fabricate controlled shape pores in polycarbonate membranes that have potential applications in a wide array of fields. |
| Freie Schlagworte: | Nanopores; Polycarbonate; Ion track etching |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 26 Feb 2010 12:32 |
| Letzte Änderung: | 05 Mär 2013 09:32 |
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