Rayleigh surface acoustic wave as an efficient heating system for biological reactions: investigation of microdroplet temperature uniformity.
Fiche publication
Date publication
avril 2015
Journal
IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Auteurs
Membres identifiés du Cancéropôle Est :
Dr BEYSSEN Denis
Tous les auteurs :
Roux-Marchand T, Beyssen D, Sarry F, Elmazria O
Lien Pubmed
Résumé
When a microdroplet is put on the Rayleigh surface acoustic wave path, longitudinal waves are radiated into the liquid and induce several phenomena such as the wellknown surface acoustic wave streaming. At the same time, the temperature of the microdroplet increases as it has been shown. In this paper, we study the temperature uniformity of a microdroplet heated by Rayleigh surface acoustic wave for discrete microfluidic applications such as biological reactions. To precisely ascertain the temperature uniformity and not interfere with the biological reaction, we used an infrared camera. We then tested the temperature uniformity as a function of three parameters: the microdroplet volume, the Rayleigh surface acoustic wave frequency, and the continuous applied radio frequency power. Based on these results, we propose a new device structure to develop a future lab on a chip based on reaction temperatures.
Mots clés
Biosensing Techniques, instrumentation, Heating, instrumentation, Lab-On-A-Chip Devices, Solutions, chemistry, Sound, Temperature
Référence
IEEE Trans Ultrason Ferroelectr Freq Control. 2015 Apr;62(4):729-35