Left: 0.2 μm polystyrene beads in lettuce root (a-b) and leaf (c); right: 2.0 μm polystyrene beads in wheat seedling root (a-d), stem (e-f) and leaf (g-h) Disclaimer: AAAS and EurekAlert! are not ...
A 2-μm polystyrene bead passing through a 3-μm diameter pore. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions ...
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