Abstract
A microfluidic microreactor for the synthesis of gold nanorods is fabricated usingfemtosecond pulse laser microfabrication techniques. Femtosecond pulse lasers are able toetch a wide range of materials that are required for a microreactor, from the photomasks tothe microheaters. The heating of the fluid in the microreactor is achieved through thedesign and fabrication of a microscale heating element incorporated onto the bottomsurface of the microreactor which is capable of reaching temperatures greater than130 °C. Computational fluid dynamic simulations of the heating profile of an optimized microreactorshow increased heating performance with respect to a serpentine microreactor. The synthesisof gold nanorods is demonstrated in the optimized microreactor, based on a flow rate of0.5 µg min−1.
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