Hi. I am currently designing an experiment based on X-ray scattering and I was looking for a way of introducing some microvoids into a water solution. Hollow glass or polymeric microspheres may work for my application providing control on the size and stability over time. Ideally, I would like to have a monodispersed solution with diameters ranging from 5 microns, or less if any, to a maximum of about 10 microns. However, I am struggling to find some commercially available solutions. Those I found have larger diameters or are not monodispersed. I am not sure what the fabrication limit is and if diameters smaller than 10 microns can be obtained. Do you have any suggestions about companies producing these kinds of products? Based in Europe or US would make the purchase easier.
Thank you!
Hi Lorenzo,
From my knowledge, any of the hollow microspheres (glass, ceramic) will have moderately high polydispersity and are mostly greater than 10um. There is a company in China that looks like they have what you're looking for: https://www.nanoparticles-microspheres.com/product/monodisperse-hollow-microspheres.html.
Otherwise, I may suggest you look into ultrasound contrast agents which are hollow lipid microspheres. Look up perflutren, e.g. Definity - https://www.definityimaging.com/. As these are injectable into the vascular system, they are usually below 8um with good size control.
Have a look here:
https://www.cd-bioparticles.com/product/silica-particles-list-168.html?gclid=CjwKCAjw6fyXBhBgEiwAhhiZsmzmnk1btiC5M1DCzzdjvy-HgefNirxKtPsIz86iE9EaqjKtfhW0cBoC56YQAvD_BwE
https://www.glass-microspheres.com/
I doubt they will be mono-dispersed and your size is probably a little small
Hi Lorenzo,
You may make an inquiry at Alfa Chemistry, they offer kinds of good-quality materials.
https://materials.alfachemic.com/inquiry
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