THE SIZE OF PORES IN COLLODION MEMBRANES

By the application of Poiseuille's law to the rate of flow of water through collodion membranes, it is calculated that the membranes used had pore radii of the order of 0.3 to 2 x 10(–6) cm. On the same basis the number of pores per sq. cm. appears to vary from 270 x 10(10) to 7 x 10(10), decre...

Descripción completa

Detalles Bibliográficos
Autor principal: Hitchcock, David I.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1926
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2140906/
https://www.ncbi.nlm.nih.gov/pubmed/19872289
_version_ 1782144091280113664
author Hitchcock, David I.
author_facet Hitchcock, David I.
author_sort Hitchcock, David I.
collection PubMed
description By the application of Poiseuille's law to the rate of flow of water through collodion membranes, it is calculated that the membranes used had pore radii of the order of 0.3 to 2 x 10(–6) cm. On the same basis the number of pores per sq. cm. appears to vary from 270 x 10(10) to 7 x 10(10), decreasing with increase in pore size. Reasons are given for preferring these figures for the radii to figures, 100 times as large, which were calculated by others. Microscopic examination of the membranes, with dark-field illumination, indicates that they are made up of solid granules or filaments of collodion much less than 1 x 10(–4) cm. in thickness.
format Text
id pubmed-2140906
institution National Center for Biotechnology Information
language English
publishDate 1926
publisher The Rockefeller University Press
record_format MEDLINE/PubMed
spelling pubmed-21409062008-04-23 THE SIZE OF PORES IN COLLODION MEMBRANES Hitchcock, David I. J Gen Physiol Article By the application of Poiseuille's law to the rate of flow of water through collodion membranes, it is calculated that the membranes used had pore radii of the order of 0.3 to 2 x 10(–6) cm. On the same basis the number of pores per sq. cm. appears to vary from 270 x 10(10) to 7 x 10(10), decreasing with increase in pore size. Reasons are given for preferring these figures for the radii to figures, 100 times as large, which were calculated by others. Microscopic examination of the membranes, with dark-field illumination, indicates that they are made up of solid granules or filaments of collodion much less than 1 x 10(–4) cm. in thickness. The Rockefeller University Press 1926-07-20 /pmc/articles/PMC2140906/ /pubmed/19872289 Text en Copyright © Copyright, 1926, by The Rockefeller Institute for Medical Research This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).
spellingShingle Article
Hitchcock, David I.
THE SIZE OF PORES IN COLLODION MEMBRANES
title THE SIZE OF PORES IN COLLODION MEMBRANES
title_full THE SIZE OF PORES IN COLLODION MEMBRANES
title_fullStr THE SIZE OF PORES IN COLLODION MEMBRANES
title_full_unstemmed THE SIZE OF PORES IN COLLODION MEMBRANES
title_short THE SIZE OF PORES IN COLLODION MEMBRANES
title_sort size of pores in collodion membranes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2140906/
https://www.ncbi.nlm.nih.gov/pubmed/19872289
work_keys_str_mv AT hitchcockdavidi thesizeofporesincollodionmembranes
AT hitchcockdavidi sizeofporesincollodionmembranes

Ejemplares similares