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. 2021 Jan 25;70(3):001287. doi: 10.1099/jmm.0.001287

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© 2021 The Authors

This is an open-access article distributed under the terms of the Creative Commons Attribution License.

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Fig. 5. — Mechanical properties. Young’s modulus (elasticity) in kPa and standard deviation (sd) of S. epidermidis 1585 biofilms, calculated from AFM nanoindentation. Biofilms in which PIA production was induced [ S. epidermidis 1585pTXicaADBC grown in TSB and S. epidermidis 1585pTXicaADBC grown in BHI with 10 % (v/v) human plasma (HP)] were less stiff than biofilms in which only Embp was induced [( S. epidermidis 1585P_xyl/tetembp grown in BHI with 10 % (v/v) plasma] [Welch’s t-test, ±sd, t(df)]: 0.876±0.521, n=3, P<0.05; and 1.263±0.403, n=3, P<0.05; compared with 2.616±0.243, n=3. Each sample (n) represents 1 biological replica with 5 measurement points and 10 force curves at each point.