Lee, T. and Baac, H. W. and Ok, J. G. and Youn, H. S. and Guo, L. J.. (2015) Nozzle-Free Liquid Microjetting via Homogeneous Bubble Nucleation. Physical Review Applied, 3 (4).Full text not available from this repository.
We propose and demonstrate a physical mechanism for producing liquid microjets by taking an optoacoustic approach that can convert light to sound through a carbon-nanotube-coated lens, where light from a pulsed laser is converted to high momentum sound wave. The carbon-nanotube lens can focus high-amplitude sound waves to a microspot of < 100 mu m near the air-water interface from the water side, leading to microbubbles in water and subsequent microjets into the air. Laser-flash shadowgraphy visualizes two consecutive jets closely correlated with bubble dynamics. Because of the acoustic scattering from the interface, negative pressure amplitudes are significantly increased up to 80 MPa, even allowing homogeneous bubble nucleation. As a demonstration, this nozzle-free approach is applied to inject colored liquid into a tissue-mimicking gel as well as print a material on a glass substrate.
|Additional Information:||ISI Document Delivery No.: CG0VZTimes Cited: 0Cited Reference Count: 23Lee, Taehwa Baac, Hyoung Won Ok, Jong G. Youn, Hong Seok Guo, L. JayNational Science Foundation Scalable nanomanufacturing program DMR 1120187; NSF CMMI 1025020; Basic Science Research Program through the National Research Foundation of Korea - Ministry of Education NRF-2014R1A1A2059612This work was supported in part by the National Science Foundation Scalable nanomanufacturing program (DMR 1120187) and NSF CMMI 1025020. H. W. B. acknowledges the support from the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education (NRF-2014R1A1A2059612).Amer physical socCollege pk|
|Collections:||Nanomanufacturing Research Collection > Nanomanufacturing Nanoscale Science and Engineering Centers > Center for Hierarchical Manufacturing|
|Depositing User:||Robert Stevens|
|Date Deposited:||12 Nov 2015 18:38|
|Last Modified:||12 Nov 2015 18:38|
Actions (login required)