Measuring nanoparticle aggregates

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In summary, the conversation is about working with magnetic nanoparticles and measuring their velocity as they move through different liquids. The current method involves timing their distance traveled, but the person is seeking a more precise way of measuring this. Suggestions are given such as using a ferrofluid or moving the liquid at a steady rate and using an LVDT to measure the bulk position of the aggregates.
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kurite
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Hello,
I am currently working with magnetic nanoparticles that aggregate and can be measured on the micro scale. Part of the project involves measuring their velocity as it move through vrious liquids. My current set up is simply timing their distance traveled. Does anyone know of a more precise way of measuring this?
Thank you
 
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Welcome to PF.
Is this a ferrofluid or are the particles permanent magnets ?
https://en.wikipedia.org/wiki/Ferrofluid

Do the particles aggregate in the liquid and then begin to fall through the liquid ?
How many aggregations do you have moving through the liquid at one time ?

You might consider moving the liquid at a rate that holds the particles in a steady position. Over time the flow rate would give the velocity. It might be possible to measure bulk position of aggregates in a column with an LVDT made from three coils wound around the column.
https://en.wikipedia.org/wiki/Linear_variable_differential_transformer
 
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FAQ: Measuring nanoparticle aggregates

What are nanoparticle aggregates?

Nanoparticle aggregates are clusters of nanoparticles that are physically bound together, either through van der Waals forces or through chemical interactions.

Why is measuring nanoparticle aggregates important?

Measuring nanoparticle aggregates is important because it can provide information on the size, shape, and stability of these clusters, which can impact their properties and potential applications in various industries.

How are nanoparticle aggregates measured?

Nanoparticle aggregates can be measured through various techniques such as dynamic light scattering, electron microscopy, and centrifugation. Each method has its own advantages and limitations, so it is important to choose the appropriate technique for the specific sample being measured.

What factors can affect the accuracy of measuring nanoparticle aggregates?

Some factors that can affect the accuracy of measuring nanoparticle aggregates include sample preparation, instrument calibration, and the presence of impurities or contaminants in the sample. It is important to carefully control these factors to obtain reliable and accurate measurements.

What are the potential applications of measuring nanoparticle aggregates?

Measuring nanoparticle aggregates can be useful in a variety of fields, including nanotechnology, drug delivery, and environmental science. It can help researchers understand the behavior and properties of nanoparticles, and potentially improve their design for specific applications.

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