A nuclepore filter (brand name Nuclepore from Whatman, part of GE Healthcare) is a kind of filter in which holes a few micrometres in size have been created in a plastic (e.g. polycarbonate) membrane. These filters are generally created by exposing the membrane to radiation that weakens the plastic and creates specific areas that can be removed by dousing the membrane in acid (or other chemicals). The technique and patent were developed by Robert L. Fleischer, P. Buford Price, and Robert M. Walker as an outgrowth of their research on radiation effects in solids, with a special focus on materials exposed to energetic particles in space. The technique allows for creating uniform holes of any desired diameter to allow even a virus to be filtered.
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| - Filtre Nuclepore (ca)
- Nuclepore filter (en)
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| - Un filtre Nuclepore (nom de marca Nuclepore de Whatman, part de GE Healthcare) és un tipus de filtre fet a partir d'una membrana amb forats de pocs micrometres feta de plàstic (p. ex. policarbonat). Aquests filtres es creen generalment exposant la membrana a radiació que debilita el plàstic i crea àrees específiques que es poden eliminar submergint la membrana en àcid (o altres substàncies químiques). La tècnica i la patent van ser desenvolupades per Robert L. Fleischer, P. Buford Preu, i Robert M. Walker com a resultat de la seva recerca sobre els efectes de la radiació en sòlids, amb atenció especial als materials exposats a partícules energètiques a l'espai. La tècnica permet crear forats uniformes de qualsevol diàmetre desitjat per permetre filtrar fins i tot un virus. (ca)
- A nuclepore filter (brand name Nuclepore from Whatman, part of GE Healthcare) is a kind of filter in which holes a few micrometres in size have been created in a plastic (e.g. polycarbonate) membrane. These filters are generally created by exposing the membrane to radiation that weakens the plastic and creates specific areas that can be removed by dousing the membrane in acid (or other chemicals). The technique and patent were developed by Robert L. Fleischer, P. Buford Price, and Robert M. Walker as an outgrowth of their research on radiation effects in solids, with a special focus on materials exposed to energetic particles in space. The technique allows for creating uniform holes of any desired diameter to allow even a virus to be filtered. (en)
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| - Un filtre Nuclepore (nom de marca Nuclepore de Whatman, part de GE Healthcare) és un tipus de filtre fet a partir d'una membrana amb forats de pocs micrometres feta de plàstic (p. ex. policarbonat). Aquests filtres es creen generalment exposant la membrana a radiació que debilita el plàstic i crea àrees específiques que es poden eliminar submergint la membrana en àcid (o altres substàncies químiques). La tècnica i la patent van ser desenvolupades per Robert L. Fleischer, P. Buford Preu, i Robert M. Walker com a resultat de la seva recerca sobre els efectes de la radiació en sòlids, amb atenció especial als materials exposats a partícules energètiques a l'espai. La tècnica permet crear forats uniformes de qualsevol diàmetre desitjat per permetre filtrar fins i tot un virus. L'ús més habitual dels filtres Nuclepore és en microbiologia on s'utilitzen per atrapar cèl·lules mentre s'eliminen tots els altres fluids i partícules més petites. (ca)
- A nuclepore filter (brand name Nuclepore from Whatman, part of GE Healthcare) is a kind of filter in which holes a few micrometres in size have been created in a plastic (e.g. polycarbonate) membrane. These filters are generally created by exposing the membrane to radiation that weakens the plastic and creates specific areas that can be removed by dousing the membrane in acid (or other chemicals). The technique and patent were developed by Robert L. Fleischer, P. Buford Price, and Robert M. Walker as an outgrowth of their research on radiation effects in solids, with a special focus on materials exposed to energetic particles in space. The technique allows for creating uniform holes of any desired diameter to allow even a virus to be filtered. The most common use of Nuclepore filters is in microbiology where they are used to trap cells while removing all other fluids and smaller particles, e.g. for counting bacteria by fluorescence microscopy. Because the filters have a flat surface, the cells are trapped on top of the filter and remain visible, unlike other types of filters where the cells may be trapped inside the filter. (en)
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