Transport of citrate and polymer coated gold nanoparticles (AuNPs) in porous media: Effect of surface property and Darcy velocity

2020 ◽  
Vol 92 ◽  
pp. 235-244
Author(s):  
Chunyu Wen ◽  
Mette M. Broholm ◽  
Jun Dong ◽  
Basil Uthuppu ◽  
Mogens Havsteen Jakobsen ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Porous Media ◽  
Surface Property ◽  
Media Effect ◽  
Darcy Velocity ◽  
Effect Of Surface

Polymer-Modified Fe0Nanoparticles Target Entrapped NAPL in Two Dimensional Porous Media: Effect of Particle Concentration, NAPL Saturation, and Injection Strategy

2011 ◽  
Vol 45 (14) ◽  
pp. 6102-6109 ◽  
Author(s):  
Tanapon Phenrat ◽  
Fritjof Fagerlund ◽  
Tissa Illangasekare ◽  
Gregory V. Lowry ◽  
Robert D. Tilton
Keyword(s):  
Porous Media ◽  
Particle Concentration ◽  
Two Dimensional ◽  
Media Effect ◽  
Injection Strategy

scholarly journals Effect of Surface Wettability on Immiscible Displacement in a Microfluidic Porous Media

Energies ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 664 ◽  
Author(s):  
Jorge Avendaño ◽  
Nicolle Lima ◽  
Antonio Quevedo ◽  
Marcio Carvalho
Keyword(s):  
Porous Media ◽  
Water Injection ◽  
Residual Oil ◽  
Strong Function ◽  
Fluid Displacement ◽  
Oil Displacement ◽  
Displacement Front ◽  
Final Volume ◽  
Displacement Experiments ◽  
Effect Of Surface

Wettability has a dramatic impact on fluid displacement in porous media. The pore level physics of one liquid being displaced by another is a strong function of the wetting characteristics of the channel walls. However, the quantification of the effect is still not clear. Conflicting data have shown that in some oil displacement experiments in rocks, the volume of trapped oil falls as the porous media becomes less water-wet, while in some microfluidic experiments the volume of residual oil is higher in oil-wet media. The reasons for this discrepancy are not fully understood. In this study, we analyzed oil displacement by water injection in two microfluidic porous media with different wettability characteristics that had capillaries with constrictions. The resulting oil ganglia size distribution at the end of water injection was quantified by image processing. The results show that in the oil-wet porous media, the displacement front was more uniform and the final volume of remaining oil was smaller, with a much smaller number of large oil ganglia and a larger number of small oil ganglia, when compared to the water-wet media.

scholarly journals Effect of surface charge of gold nanoparticles on fluorescence amplification of polydiacetylene-based liposomes

2020 ◽  
Vol 15 (1) ◽  
pp. 174-181
Author(s):  
Kyu Ha Park ◽  
Sangjin Oh ◽  
Jeonghyo Kim ◽  
Seung Yun Yang ◽  
Beum-Soo An ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Charge ◽  
Fluorescence Amplification ◽  
Effect Of Surface
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