scholarly journals Effect of Bulk Viscosity and Emulsion Droplet Size on the Separation Efficiency of Model Mineral Oil-in-Water (O/W) Emulsions under Ultrasonic Standing Wave Fields: A Theoretical and Experimental Investigation

2020 ◽  
Vol 59 (16) ◽  
pp. 7901-7912 ◽  
Author(s):  
Srinivas Mettu ◽  
Shunyu Yao ◽  
Qiang Sun ◽  
Samuel Ronald Lawson ◽  
Peter J. Scales ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Standing Wave ◽  
Droplet Size ◽  
Bulk Viscosity ◽  
Separation Efficiency ◽  
Mineral Oil ◽  
Emulsion Droplet ◽  
Wave Fields ◽  
Oil In Water ◽  
Ultrasonic Standing Wave

Review on the viability of mammalian cells in ultrasonic standing wave fields

1999 ◽  
Vol 105 (2) ◽  
pp. 1325-1326
Author(s):  
Otto Doblhoff‐Dier ◽  
Theo Gaida ◽  
Wolfgang Burger ◽  
Felix Trampler ◽  
Martin Gröschl ◽  
...  
Keyword(s):  
Standing Wave ◽  
Mammalian Cells ◽  
Wave Fields ◽  
Ultrasonic Standing Wave

scholarly journals Gravity-Aided Ultrasonic Separation of Nanoparticles from Liquid Using Macro-Scale Separator

2021 ◽  
Vol 79 (2) ◽  
pp. 74-82
Author(s):  
Khin Nwe Zin Tun ◽  
Khine Zin Mar ◽  
Thein Min Htike
Keyword(s):  
Titanium Dioxide ◽  
Wave Field ◽  
Standing Wave ◽  
Separation Efficiency ◽  
Acoustic Energy ◽  
Fluidic Channel ◽  
Fem Simulations ◽  
Standing Wave Field ◽  
Macro Scale ◽  
Ultrasonic Standing Wave

Acoustophoresis is the technology to separate the microparticles and cells from suspending fluid. This research focuses on the separation of nanoparticles from water by using macro-scale fluidic separator which works based on gravity-aided ultrasonic standing wave technology. Titanium dioxide particles of 40 nm diameter were concentrated by the combination of ultrasonic standing wave field at 2.2 MHz and gravity-aided sedimentation. The purpose of this study is to investigate the performance of gravity-aided ultrasonic particle to concentrate nanoparticles. It was found that the separation efficiency is 83% at a flow rate of 0.1 mL/min. FEM simulations were also conducted to evaluate characteristics of variation of acoustic energy inside the fluidic channel. Results indicate that nanoparticles can be concentrated using gravity-aided ultrasonic standing wave field, however optimization of the design of the fluidic channel is required for increasing throughput of the separator.

scholarly journals Single-Conidium Encapsulation in Oil-in-Water Pickering Emulsions at High Encapsulation Yield

2021 ◽  
Vol 9 ◽  
Author(s):  
Liliya Kotliarevski ◽  
Karthik Ananth Mani ◽  
Reut Amar Feldbaum ◽  
Noga Yaakov ◽  
Eduard Belausov ◽  
...  
Keyword(s):  
Confocal Microscopy ◽  
Droplet Size ◽  
Pickering Emulsion ◽  
Mineral Oil ◽  
High Yield ◽  
Pickering Emulsions ◽  
Amine Functionalized ◽  
Oil In Water ◽  
The Stability

This study presents an individual encapsulation of fungal conidia in an oil-in-water Pickering emulsion at a single-conidium encapsulation yield of 44%. The single-conidium encapsulation yield was characterized by analysis of confocal microscopy micrographs. Mineral oil-in-water emulsions stabilized by amine-functionalized titania dioxide (TiO2-NH2 or titania-NH2) particles were prepared. The structure and the stability of the emulsions were investigated at different compositions by confocal microscopy and a LUMiSizer® respectively. The most stable emulsions with a droplet size suitable for single-conidium encapsulation were further studied for their individual encapsulation capabilities. The yields of individual encapsulation in the emulsions; i.e., the number of conidia that were individually encapsulated out of the total number of conidia, were characterized by confocal microscopy assay. This rapid, easy to use approach to single-conidium encapsulation, which generates a significantly high yield with eco-friendly titania-based emulsions, only requires commonly used emulsification and agitation methods.

Manipulation of Microparticles Using Acoustic Standing Wave: Recent Trend

2013 ◽  
Vol 433-435 ◽  
pp. 460-463
Author(s):  
Hai Yan Yin ◽  
Chun Cheng Zuo ◽  
Hong Cheng Wang ◽  
Yan Ping Meng
Keyword(s):  
Standing Wave ◽  
Biochemical Analysis ◽  
Recent Trend ◽  
Separation Efficiency ◽  
Industrial Processes ◽  
Acoustic Standing Wave ◽  
Ultrasonic Standing Wave ◽  
Low Energy Consumption ◽  
Future Direction ◽  
High Separation

Ultrasonic standing wave (USW) manipulation of suspension microparticles separation has attracted wide attention due to its non-direct contact, being harmless to the particles, easy to manufacture, low energy consumption and high separation efficiency. USW is widely used in industrial processes, environmental assessment, biochemical analysis, clinical diagnosis and other fields. In this article, particles stress and movement process is analyzed, meanwhile, aggregation and separation of the particles is discussed respectively and the future direction of development is pointed out.

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