Abstract
A new transport technique of solute molecules in micro channel using the Soret effect and ratchet thermal potential, namely ratchet thermalphoresis, is developed. In the ratchet thermalphoresis, the solute molecules are driven by the Soret effect induced by the gradient of temperature distribution. The ratchet thermalphoresis has the potential of the applications for a separation technique of DNA fragments and a condensation method for protein crystallization. In present study, the validity of the driving theory of Gaussian concentration distribution was confirmed using slope temperature distribution. The Gaussian pattern was transferred by the thermalphoresis using the Soret effect. The displacement of the Gaussian pattern was consistent with the theory.
