Figure 1
From: Continuous Isotropic-Nematic Transition in Amyloid Fibril Suspensions Driven by Thermophoresis
Schematic of the experimental setup for thermophoresis. (a) The microfluidic device is placed on an aluminium support, whose temperature is controlled by two separate Peltier modules and two water blocks are used as heat sink in conjunction with a temperature controlled water bath. (b) Detailed view of the microfluidic channel: a 30 mm long, 100 µm wide microchannel contains the fluorescent β-lactoglobulin fibrils, two larger (1 mm width) channels, separated by a 75 µm layer of polydimethylsiloxane (PDMS) from the microchannel, are used as heater (where ∆V is the potential applied to the Joule heater) and cooler to impose a temperature gradient. The whole device has a thickness of 120 µm.
