Characterizing the surface quality and droplet interface shape for microarray plates |
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Authors: | Schertzer M J Ahamed M J Ben-Mrad R Lea P Sullivan P E |
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Institution: | Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada. |
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Abstract: | The variation in the surface quality of microarray plates was examined by measuring the contact angles of 480 droplets on five microarray plates. It was found that the measured contact angle did not accurately predict the droplet shape for moderate Bond numbers (~0.5 ≤ N(B) ≤ 5). By defining an apparent contact angle using the ratio of the contact radius to the height, the variance in the predicted interface shape decreased by greater than a factor of 3 for both local and globally averaged characteristics. The error in the predicted droplet height was also reduced by 3 orders of magnitude. |
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