James Friend

(BS Magna cum laude Aero Engr 1992, MS Mech Engr 1994, PhD Mech Engr 1998) directs the new MicroNano Research Facility at RMIT University, and co-founded and co-directs the $7.25 million MicroNanophysics Research Laboratory with clean room and biolab, a current staff of four academics, two post-doctorates and twelve PhD students. He is a professor and Vice-Chancellor's Senior Research Fellow in the School of Electrical and Computer Engineering at RMIT University and an MCN Senior Tech Fellow with the Melbourne Centre for Nanofabrication with research interests in micro/nanodevices for biomedical applications.

Publication list and PDFs of papers

He is an associate editor of Biomicrofludics, a senior member of IEEE, a member of ASME and Golden Key, and a committee member of IEEE Nanotechnology for Biology, and has over one hundred sixty peer-reviewed publications, with seven book chapters, ninety-six peer-reviewed journal papers, and twenty-five patents and patent applications.

He received excellence in teaching, early career researcher and research awards from the Monash Faculty of Engineering in 2006, 2008 and 2010, respectively, a Future Leader award from the Davos Future Summit in Sydney in 2008, and was awarded membership in the Top 100 emerging leaders/Top 10 emerging scientific leaders of Australia by Microsoft and The Australian newspaper in 2009. He recently received a Distinguished Young Alumni and Alumni of Influence awards from his alma mater, the University of Missouri-Rolla (now MST)

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UV epoxy bonding for enhanced SAW transmission and microscale acoustofluidic integration Surface acoustic waves (SAWs) are appealing as a means to manipulate fluids within lab-on-a-chip systems. However, current acoustofluidic devices almost universally rely on elastomeric materials, especially PDMS, that are inherently ill-suited for conveyance of elastic energy due to their strong attenuation properties. Here, we explore the use of a low-viscosity UV epoxy resin for room temperature bonding of lithium niobate (LiNbO3), the most widely used anisotropic piezoelectric substrate used in the generation of SAWs, to standard micromachined superstrates such as Pyrex1 and silicon. The bonding methodology is straightforward and allows for reliable production of sub- micron bonds that are capable of enduring the high surface strains and accelerations needed for conveyance of SAWs. Devices prepared with this approach display as much as two orders of magnitude, or 20 dB, improvement in SAW transmission compared to those fabricated using the standard PDMS elastomer. This enhancement enables a broad range of applications in acoustofluidics that are consistent with the low power requirements of portable battery-driven circuits and the development of genuinely portable lab-on-a-chip devices. The method is exemplified in the fabrication of a closed-loop bidirectional SAW pumping concept with applications in micro-scale flow control, and represents the first demonstration of closed channel SAW pumping in a bonded glass/LiNbO3 device. Publication here. 

UV epoxy bonding for enhanced SAW transmission and microscale acoustofluidic integration

Surface acoustic waves (SAWs) are appealing as a means to manipulate fluids within lab-on-a-chip systems. However, current acoustofluidic devices almost universally rely on elastomeric materials, especially PDMS, that are inherently ill-suited for conveyance of elastic energy due to their strong attenuation properties. Here, we explore the use of a low-viscosity UV epoxy resin for room temperature bonding of lithium niobate (LiNbO3), the most widely used anisotropic piezoelectric substrate used in the generation of SAWs, to standard micromachined superstrates such as Pyrex1 and silicon. The bonding methodology is straightforward and allows for reliable production of sub- micron bonds that are capable of enduring the high surface strains and accelerations needed for conveyance of SAWs. Devices prepared with this approach display as much as two orders of magnitude, or 20 dB, improvement in SAW transmission compared to those fabricated using the standard PDMS elastomer. This enhancement enables a broad range of applications in acoustofluidics that are consistent with the low power requirements of portable battery-driven circuits and the development of genuinely portable lab-on-a-chip devices. The method is exemplified in the fabrication of a closed-loop bidirectional SAW pumping concept with applications in micro-scale flow control, and represents the first demonstration of closed channel SAW pumping in a bonded glass/LiNbO3 device. Publication here. 

Source dx.doi.org

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  1. mnrl reblogged this from jamesfriend and added:
    UV epoxy bonding for enhanced SAW transmission and microscale acoustofluidic integration Surface acoustic waves (SAWs)...
  2. jamesfriend posted this

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