Isopore™ Membrane Filters

Polycarbonate membrane for microscopy and visual analysis

Descripción

Especificaciones

Información para pedidos

White Membrane Filters · Catalogue No. Borrar Clasificación y Filtrado
Número de referenciaicon Tamaño de poro (µm)icon Diámetro del filtro (mm)icon Tamaño de envaseicon
ATTP013000,813100 Precios y disponibilidad
ATTP025000,825100 Precios y disponibilidad
ATTP037000,837100 Precios y disponibilidad
ATTP047000,847100 Precios y disponibilidad
ATTP142500,814250 Precios y disponibilidad
DTTP013000,613100 Precios y disponibilidad
DTTP025000,625100 Precios y disponibilidad
DTTP047000,647100 Precios y disponibilidad
GTTP013000,213100 Precios y disponibilidad
GTTP025000,225100 Precios y disponibilidad
GTTP037000,237100 Precios y disponibilidad
GTTP047000,247100 Precios y disponibilidad
GTTP090300,29030 Precios y disponibilidad
GTTP142500,214250 Precios y disponibilidad
HTTP013000,413100 Precios y disponibilidad
HTTP025000,425100 Precios y disponibilidad
HTTP037000,437100 Precios y disponibilidad
HTTP047000,447100 Precios y disponibilidad
HTTP090300,49030 Precios y disponibilidad
HTTP142500,414250 Precios y disponibilidad
RTTP013001,213100 Precios y disponibilidad
RTTP025001,225100 Precios y disponibilidad
RTTP047001,247100 Precios y disponibilidad
RTTP142501,214250 Precios y disponibilidad
TCTP0130010,013100 Precios y disponibilidad
TCTP0250010,025100 Precios y disponibilidad
TCTP0470010,047100 Precios y disponibilidad
TCTP1425010,014250 Precios y disponibilidad
TETP013008,013100 Precios y disponibilidad
TETP025008,025100 Precios y disponibilidad
TETP047008,047100 Precios y disponibilidad
TETP090308,09030 Precios y disponibilidad
TETP142508,014250 Precios y disponibilidad
TMTP013005,013100 Precios y disponibilidad
TMTP025005,025100 Precios y disponibilidad
TMTP047005,047100 Precios y disponibilidad
TMTP090305,09030 Precios y disponibilidad
TMTP142505,014250 Precios y disponibilidad
TSTP013003,013100 Precios y disponibilidad
TSTP025003,025100 Precios y disponibilidad
TSTP047003,047100 Precios y disponibilidad
TSTP142503,014250 Precios y disponibilidad
TTTP025002,025100 Precios y disponibilidad
TTTP047002,047100 Precios y disponibilidad
VCTP013000,113100 Precios y disponibilidad
VCTP025000,125100 Precios y disponibilidad
VCTP047000,147100 Precios y disponibilidad
VCTP142500,114250 Precios y disponibilidad

Volver al principio

Brown Membrane Filters Borrar Clasificación y Filtrado
Número de referenciaicon Tamaño de poro (µm)icon Diámetro del filtro (mm)icon Tamaño de envaseicon
GTBP013000,213100 Precios y disponibilidad
GTBP025000,225100 Precios y disponibilidad
GTBP047000,247100 Precios y disponibilidad
HTBP013000,413100 Precios y disponibilidad
HTBP025000,425100 Precios y disponibilidad
HTBP047000,447100 Precios y disponibilidad

Volver al principio

    Documentation

    Referencias bibliográficas

    Visión general referencias
    Urea transport in kidney brush-border membrane vesicles from an elasmobranch, Raja erinacea
    Robyn L. et al,J. experimental biology, 206, 3293-3302, 2003; internal ref BB04
    J. experimental biology, 206, 3293-3302, 2003; internal ref BB04 2003

    Comparison of microporous membrane morphologies using confocal scanning laser microscopy
    Charcosset C (reprint), et al.
    Journal of membrane science. 2000. v168, n2, p53-62 2000

    Preguntas frecuentes

    PreguntaRespuesta
    How do I clear my Millipore filters? It is possible to clear Millipore filters by choosing a clearing agent with the same refractive index as the membrane. This is called the PORE FILLING TECHNIQUE. Filters appear opaque because of the diffraction of light through the tortuous pores. Filling the pores with a liquid that has the same refractive index as the membrane (ex. xylene for MF filters) allows light to pass through the filter at a uniform speed thus rendering the filter transparent. This technique can be used for most membrane filters with a single refractive index. The refractive index for Durapore membrane is 1.42 and for MF membrane its 1.50.

    Please note that this does not work for polycarbonate membranes because these membranes have more than one refractive index (1.62 and 1.58). If desired, the porous structure can be dissolved from Isopore polycarbonates by dissolving the filter in chloroform, methylene chloride or 1-methyl-2 pyrrolidone.
    What is the blue separation paper between my filters? It is a parchmentalized paper specially formulated for Millipore Corporation.
    How do I tell the membrane from the separator? The blue paper is the separator.
    Which side of the membrane should I use, the shiny or dull side? Most researchers may not even notice that there is a "sidedness" to filters, and, for most applications, orientation will not affect filter performance. However, membranes do have a slightly asymmetric pore structure: the shiny side of the membrane is the "tighter" side. In some applications, you can take advantage of this difference by selecting a specific filter orientation. ultrafiltration membranes should always be used shiny side up, regardless of application for drop dialysis ( a buffer exchange technique in which a few drops of DNA or protein are placed in a 0.05 or 0.025 um filter and floated on a buffer solution), apply the sample to the shiny side of the filter and float the filter dull side to the buffer. This measure will enhance buffer exchange and discourage sample loss. The Millipore Express and Express Plus membranees are also sided - these membranes should be used shiny side facing down.
    What is the difference between pore size and pore size distribution? Whereas pore size is a measure of the diameter of the largest pore, pore size distribution is a measure of the range of pore sizes. The range of pore sizes can be normally distributed, and the spread can be quite narrow (e.g. the ratio of largest to smallest may be less than 2). On the other hand, pore size distribution can be very heterogeneous. In the case of large spreads and heterogeneity, the pore size will be far less predictive of flow rate (either filtration or capillary) than it will be for a membrane with a narrow pore size distribution. It is important to note that the pore size corresponding to the bubble point is not at the middle of the distribution, but is the largest pore.
    Is Polyvinylpyrolidone (PVP) toxic to cell growth on our Isopore membrane? PVP coated membranes are not suitable and will not support the attachment of cells to the membrane. PVP in Millicell-PC membranes has been validated for hybridoma cell growth and subsequent antibody production and found to be non-toxic. PVP is generally considered non-toxic and for a while was used in vivo as a plasma expander.