Some journal wrote that the nanoparticles were filtered using filter paper or filter membrane after synthesis of nanoparticles. Can we use the nylon membrane directly for nanoparticles filtration??
Product Number: 000000000000058067
Description: MEMBRANES NYLON 66 0.45UM
Dear Shivani,
Using nylon filter of 0.45 um you can filter (collect) nanoparticles with sizes more the 0.45 um. Nanoparticles with a size less 0.45 um will pass into the filtrate.
Nylon6,6 membranes of Ultipleat○R P-Nylon ANM (filter rating 20 nm, Pall) filter have been used to filter gold nanoparticles. For more on this topic, please see the publication contained in the following link:
https://www.pall.com/pdfs/Microelectronics/UC-O-56_ISSM_copyright.pdf
Hoping this will be helpful,
Rafik
Thank you, @Rafik. But i want to know that can we use them without prewetting with Isopropyl alcohol?
Nanoparticles assume < 100 nm (ISO and ASTM)....
BTW, pre-wetting is a good idea for all filters.
Dear Shivani,
Nylon membrane filters are specifically designed to wet-out evenly and retain membrane integrity without cracking, tearing, curling or breaking. In addition to their compatibility with most aqueous and alcoholic solvents and solutions, nylon membrane filters are also widely used for vacuum degassing. Nylon’s natural hydrophilic tendency and material properties eliminate the need for wetting agents.
Therefore, the above mentioned nylon membrane does not require the need for wetting agents in addition to its compatibility with alcohols such as isopropyl alcohol.
Rafik
What would be using for filtration? A mechanical set-up recommended or a manual, slow-moving filtration assembly?! Keep your filter components in place, intact, stick and flawless fitting! Simple precautions are absolute for better and desired results.
@ Rafik A lot of filters shed some material when the first amount of fluid I'd passed through. That's why it's a good idea to wet (with appropriate solvent) and discard the first portions eluding from the filter before filtering the material itself.
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