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Transport of 100 nm sulfate modified latex particles in the PBA-SHA crosslinked gel at 37°C as a function of pH. a–d) The mean squared displacement of a random sample of individual 100 nm beads (<Δr2(t)>, μm2) as a function of lag time (t, s). Three to five image stacks in each sample were taken with over 100 particle trajectories tracked total.
