Fig. 2
From: Humidity-tolerant rate-dependent capillary viscous adhesion of bee-collected pollen fluids
Rate- and humidity-dependent adhesion of bee pollen adhesive. a Schematic of adhesive force measurement of cleaned sunflower pollen with bee pollen adhesive fluid using AFM colloidal probe microscopy. Scale bar = 10 μm. b Adhesive force versus retraction rate of a sunflower pollen (Helianthus annuus) on the core (mainly aqueous phase) and the surrounding (oily phase) liquid regions of a bee pollen adhesive droplet. The error bars are s.e.m. c, d Adhesive force of a sunflower pollen on the aqueous phase droplets with oil phase removed (c) and the oil phase coat intact (d), for bee pollen adhesive stored at different relative humidity levels and at two retraction rates of 31 and 117 µm s−1. The error bars are s.e.m.
