Surface acoustic wave-based generation and transfer of droplets onto wettable substrates

被引:10
作者
Nampoothiri, Krishnadas Narayanan [1 ]
Satpathi, Niladri Sekhar [1 ]
Sen, Ashis Kumar [1 ,2 ]
机构
[1] Indian Inst Technol Madras, Dept Mech Engn, Fluid Syst Lab, Chennai 600036, India
[2] Indian Inst Technol Madras, Micro Nano Bio Fluid Grp, Chennai 600036, India
关键词
ELECTROSPRAY; DELIVERY; IMPACT;
D O I
10.1039/d2ra04089a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Fluid manipulation using surface acoustic waves (SAW) has been utilized as a promising technique in the field of microfluidics due to its numerous advantages, over other active techniques, such as low power requirement, facile fabrication methods, and non-invasive nature. Even though SAW-based generation of micron-sized droplets through atomization has been studied, the role of substrate wettability on the characteristics of the transferred droplets has not been explored to date. Here, we study the generation and effective transfer of micron-sized droplets using SAW onto wettable substrates whose water contact angles vary from 5 degrees to 145 degrees. The characteristics of transferred droplets after impacting the wettable substrates are characterized in terms of the contact line diameter and polydispersity index. A theoretical model is formulated to predict the initial average size of the transferred droplets on the wettable substrates of different contact angles. The variation of polydispersity and number density with contact angle is explained by considering droplet coalescence and bouncing. The relevance of the technique in biological assays is demonstrated by transferring droplets of streptavidin protein samples onto a substrate.
引用
收藏
页码:23400 / 23410
页数:11
相关论文
共 81 条
[1]   Frequency effect on streaming phenomenon induced by Rayleigh surface acoustic wave in microdroplets [J].
Alghane, M. ;
Fu, Y. Q. ;
Chen, B. X. ;
Li, Y. ;
Desmulliez, M. P. Y. ;
Walton, A. J. .
JOURNAL OF APPLIED PHYSICS, 2012, 112 (08)
[2]   Assessment of the potential of a high frequency acoustomicrofluidic nebulisation platform for inhaled stem cell therapy [J].
Alhasan, Layla ;
Qi, Aisha ;
Rezk, Amgad R. ;
Yeo, Leslie Y. ;
Chan, Peggy P. Y. .
INTEGRATIVE BIOLOGY, 2016, 8 (01) :12-20
[3]   Rapid generation of protein aerosols and nanoparticles via surface acoustic wave atomization [J].
Alvarez, Mar ;
Friend, James ;
Yeo, Leslie Y. .
NANOTECHNOLOGY, 2008, 19 (45)
[4]   Nozzle less spray cooling using surface acoustic waves [J].
Ang, Kar M. ;
Yeo, Leslie Y. ;
Friend, James R. ;
Hung, Yew M. ;
Tan, Ming K. .
JOURNAL OF AEROSOL SCIENCE, 2015, 79 :48-60
[5]   Drop impact and wettability: From hydrophilic to superhydrophobic surfaces [J].
Antonini, Carlo ;
Amirfazli, Alidad ;
Marengo, Marco .
PHYSICS OF FLUIDS, 2012, 24 (10)
[6]   Cross-stream migration and coalescence of droplets in a microchannel co-flow using magnetophoresis [J].
Banerjee, U. ;
Mandel, C. ;
Jain, S. K. ;
Sen, A. K. .
PHYSICS OF FLUIDS, 2019, 31 (11)
[7]  
Banerjee U., 2022, MAT HORIZONS NATURE, P145
[8]   Microfluidic Air Sampler for Highly Efficient Bacterial Aerosol Collection and Identification [J].
Bian, Xiaojun ;
Lan, Ying ;
Wang, Bing ;
Zhang, Yu Shrike ;
Liu, Baohong ;
Yang, Pengyuan ;
Zhang, Weijia ;
Qiao, Liang .
ANALYTICAL CHEMISTRY, 2016, 88 (23) :11504-11512
[9]   Surface Acoustic Waves to Control Droplet Impact onto Superhydrophobic and Slippery Liquid-Infused Porous Surfaces [J].
Biroun, Mehdi H. ;
Haworth, Luke ;
Agrawal, Prashant ;
Orme, Bethany ;
McHale, Glen ;
Torun, Hamdi ;
Rahmati, Mohammad ;
Fu, YongQing .
ACS APPLIED MATERIALS & INTERFACES, 2021, 13 (38) :46076-46087
[10]  
Castro JO, 2018, SOFT MATTER, V14, P5721, DOI 10.1039/c7sm02534c