Publications

A-G

• J. Blamey, L. Y. Yeo, and J. R. Friend. Microscale capillary wave turbulence excited by high frequency vibration. Langmuir, Accepted 20 February 2013 – first article to show the presence of capillary wave turbulence at the microscale, and shows that it must arise through a mechanism of acoustic streaming-induced turbulence within the fluid bulk itself in an entirely unanticipated way.
• J. R. Friend and L. Y. Yeo. Microscale acoustofluidics: microfluidics driven via acoustics and ultrasonics. Reviews of Modern Physics, 83:647-704, 2011 – seminal 52-page review article on the entire topic of microscale acoustofluidics, including analysis and applications.
• J. Friend, L. Yeo, D. Arifin, and A. Mechler. Evaporative self-assembly assisted synthesis of polymeric nanoparticles by surface acoustic wave atomization. Nanotechnology, 19:145301, 2008 – shows the formation of stable, monodisperse ~10 nm diameter polymer particles through a two-step process, which has since found many applications in drug encapsulation and delivery and may provide an effective route to form novel nanomaterials.

H-K
 

L-O

• H. Li, J. Friend, and L. Yeo. Surface acoustic wave concentration of particle and bioparticle suspensions. Biomedical Microdevices, 28:4098-4104, 2007 – first article to show rapid concentration of particles in a 10 microlitre drop, with the aim of blood separation.
• H. Li, J. Friend, and L. Yeo, Colloidal island formation and erasure in a microfluidic system induced by surface acoustic wave radiation, Physical Review Letters, 101, 084502, 2008 – Physical modeling of the exceptionally chaotic phenomena of surface-acoustic wave driven particle collection and flow in colloidal suspensions.
• K. C. Liu, J. Friend, and L. Yeo. Rotating bouncing disks, tossing pizza dough, and the behavior of ultrasonic motors. Physical Review E, 80(046201)2009 – an 11-page comprehensive analysis of solid-solid interaction under fretting contact for microactuators driven with ultrasound, a key analysis work that demonstrates a route to optimize micro to nanoactuator design despite the complexity of the contact problem, and of substantial potential use in understanding atomic force microscopy problems in contact in this Centre.

P-T

• A. Qi, P. Chan, J. Ho, A. Rajapaksa, J. Friend, and L. Yeo. Template-free synthesis and encapsulation technique for layer-by-layer polymer nanocarrier fabrication. ACS Nano, 5(12):9583-9591, 2011 – demonstrates the ability to form multilayer polymer nanoparticles encapsulating plasmid DNA to illustrate our novel method for forming such particles without substantial concern for the underlying chemistry.
• A. Rezk, O. Manor, J. R. Friend, and L. Y. Yeo. Unique fingering instabilities and soliton-like wave propagation in thin acoustowetting films. Nature Communications, 3(1167), 2012 – This shows the existence of nanoscale thin fluid films generated by high frequency acoustic waves.
• M. K. Tan, J. Friend, and L. Y. Yeo. Interfacial jetting phenomena induced by focused surface vibrations. Physical Review Letters, 103(2)2009 – shows and thoroughly explains the curious physical phenomena of fluid jetting using microscale MHz-order ultrasound; techniques of vibration measurement, analysis, and scaling employed in this study will be directly applicable to many projects of the Centre.

U-Z

• C.-H. Yun, L. Yeo, B. Yan, and J. Friend. Multi-degree-of-freedom ultrasonic micromotor for guidewire and catheter navigation: the NeuroGlide actuator. Applied Physics Letters (and the May 1, 2012 issue of Virtual Journal of Biological Physics Research), 100:164101, 2012 – awarded as one of the top 50 articles of Applied Physics Letters in its 50 year history, and illustrative of the potential of micro to nanoscale actuators that function in fluids, a key activity of the Centre.