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I just receive your conjugate spherical gold nanoparticles and according to the DLS, they are much bigger than the size I purchased. Why?

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I just receive your conjugate spherical gold nanoparticles and according to the DLS, they are much bigger than the size I purchased. Why?

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First, our polymer cages add to the diameter of the gold nanoparticle, upwards of 40 nm. Further, over time the gold nanoparticles will aggregate. However this is reversible. A quick sonication will resuspend and deaggregate the particles.

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