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. 2021 Apr 21;7(17):eabe0143. doi: 10.1126/sciadv.abe0143

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Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).

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Fig. 1 — (A) Schematic and representative confocal microscopy fluorescence images of hydrogel MPs evaluated, having varied modulus and NP loading. Red is MP hydrogel, green is 50-nm PS NPs, and the two are overlaid to show colocalization of NPs and hydrogel MPs. Scale bar, 5 μm. Swollen shear moduli for (B) 15% PEG and (C) 50% PEG hydrogels showing the influence of adding NPs to bulk material rheometry. Statistical analyses were performed using one-way analysis of variance (ANOVA) with Fisher’s least significant difference (LSD) test, where (***) indicates P < 0.001 in comparison to the nonloaded hydrogels. N = 3. Error bars plot SE.