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001     943413
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024 7 _ |a 10.1126/sciadv.abn6129
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100 1 _ |a Houston, Judith Elizabeth
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245 _ _ |a Resolving the different bulk moduli within individual soft nanogels using small-angle neutron scattering
260 _ _ |a Washington, DC [u.a.]
|c 2022
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520 _ _ |a The bulk modulus, K, quantifies the elastic response of an object to an isotropic compression. For soft compressible colloids, knowing K is essential to accurately predict the suspension response to crowding. Most colloids have complex architectures characterized by different softness, which additionally depends on compression. Here, we determine the different values of K for the various morphological parts of individual nanogels and probe the changes of K with compression. Our method uses a partially deuterated polymer, which exerts the required isotropic stress, and small-angle neutron scattering with contrast matching to determine the form factor of the particles without any scattering contribution from the polymer. We show a clear difference in softness, compressibility, and evolution of K between the shell of the nanogel and the rest of the particle, depending on the amount of cross-linker used in their synthesis.
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700 1 _ |a Fruhner, Lisa
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700 1 _ |a de la Cotte, Alexis
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700 1 _ |a Rojo González, Javier
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700 1 _ |a Petrunin, Alexander Valerievich
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700 1 _ |a Gasser, Urs
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700 1 _ |a Schweins, Ralf
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700 1 _ |a Allgaier, J.
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700 1 _ |a Richtering, Walter
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700 1 _ |a Fernandez-Nieves, Alberto
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700 1 _ |a Scotti, Andrea
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773 _ _ |a 10.1126/sciadv.abn6129
|g Vol. 8, no. 26, p. eabn6129
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|y 2022
|x 2375-2548
856 4 _ |u https://juser.fz-juelich.de/record/943413/files/sciadv.abn6129.pdf
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