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. 2024 Jan 18;18(4):3382–3396. doi: 10.1021/acsnano.3c10339

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© 2024 The Authors. Published by American Chemical Society

Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).

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Enhanced strength and stiffness of PEG-cross-linked AP205 VLPs. Mechanical properties of PEG-cross-linked AP205 VLPs, namely bPEG₉-AP205 VLP, bPEG₁₇-AP205 VLP, and bPEG₂₅-AP205 VLP, and PEGylated but not cross-linked mPEG₂₅-AP205 VLP investigated using AFM force–indentation spectroscopy. Distributions of height before and after indentation, maximal force/indentation in linear response regime, and stiffness/strain rate are shown together with mean ± standard deviation. The number (n) of VLPs in repeat measurements is indicated.