Comment on “An alternative theory to explain the effects of coalescing oil drops on mouthfeel” by B. Le Reverend and J. Engmann, Soft Matter, 2015, 11, 7077

Soft Matter ◽  
2016 ◽  
Vol 12 (12) ◽  
pp. 2987-2990 ◽  
Author(s):  
Qiuyang Xia

The article “An alternative theory to explain the effects of coalescing oil drops on mouthfeel” provided a physical scenario that involves two phases in parallel and claimed that the phase separated state of an emulsion is more viscous than a homogeneous emulsion before phase separation.

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Mun Mun Nahar ◽  
Hyejin Moon

Abstract This study reports the first comprehensive investigation of separation of the immiscible phases of multiphase droplets in digital microfluidics (DMF) platform. Electrowetting-on-dielectric (EWOD) actuation has been used to mechanically separate the phases. Phase separation performance in terms of percentage residue of one phase into another phase has been quantified. It was conceived that the residue formation can be controlled by controlling the deformation of the phases. The larger capillary number of the neck forming phase is associated with the larger amount of deformation as well as more residue. In this study, we propose two different ways to control the deformation of the phases. In the first method, we applied different EWOD operation voltages on two phases to maintain equal capillary numbers during phase separation. In the second method, while keeping the applied voltages same on both sides, we tested the phase separation performance by varying the actuation schemes. Less than 2% of residue was achieved by both methods, which is almost 90% improvement compared to the phase separation by the conventional droplet splitting technique in EWOD DMF platform, where the residue percentage can go up to 20%.


Author(s):  
Pulat K. Khabibullaev ◽  
Abdulla A. Saidov

2020 ◽  
Vol 8 (5) ◽  
pp. 2412-2423 ◽  
Author(s):  
Shu Yan ◽  
Guijin He ◽  
Dengfeng Ye ◽  
Yongsheng Guo ◽  
Wenjun Fang

Core–shell structural amphiphilic soft matter, HPEI-g-Cn, can achieve phase separation thoroughly, in which an interfacial active-polymer layer is formed after demulsification.


1987 ◽  
Vol 99 ◽  
Author(s):  
L. A. Curtiss ◽  
T. O. Brun ◽  
D. M. Gruen

ABSTRACTOn the basis of semi-empirical extended Hiickel molecular orbital calculations of copper-oxide clusters representing the new superconducting material YBa2Cu3Ox, a phase diagram is proposed which suggests that the 94 K high temperature superconducting phase of YBa2Cu3Ox is characterized by an oxygen stoichiometry near 7.0. The phase diagram predicts that a plateau should exist for Tc in the region x = 0.0 – 0.25 and that in this region two phases are present which are characterized by compositions having oxygen stoichiometries 6.5–6.75 and ca. 7.0.


Soft Matter ◽  
2015 ◽  
Vol 11 (27) ◽  
pp. 5580-5581
Author(s):  
Richard M. Epand ◽  
Diana Bach ◽  
Ellen Wachtel

As consistently described in the literature, the solubility limit of cholesterol in phospholipid bilayers is defined by its phase separation and crystallization.


2021 ◽  
Vol 9 ◽  
Author(s):  
Xiaoqi Li ◽  
Jichao Fang ◽  
Bingyu Ji

Phase separation is widely observed in multiphase systems. In this study, it has been investigated using Shan–Chen lattice Boltzmann method. The adhesion parameter in SC model leads to the desired fluid–fluid phenomenon, which was varied to specify the strength of separation between two phases to present emulsified performance in oil production. In order to describe such behaviors quantitatively, graphical distributions were described with time and were corresponded with a statistical index–Fourier structure factor that is able to predict complex phase separation behaviors, thereby providing a measurement for calculating such random distribution during the process of separation as well as evaluating heterogeneous degrees of the entire domain. The repulsive interactions are specified as low, intermediate, and high values. Phase separations with clear boundaries have been observed and each stage of separation evolvement has been discussed in this study. Magnitudes of structure factors are increased with higher degrees of fluctuations.


2007 ◽  
Vol 127 ◽  
pp. 141-146
Author(s):  
Hidehiro Yasuda ◽  
A. Tanaka ◽  
H. Usui ◽  
Hirotaro Mori ◽  
Jung Goo Lee

The effect of electron dose rate on phase separation induced by electronic excitation in GaSb nanoparticles has been studied in order to see whether a nonlinear relation between density of excited states introduced and the efficiency of the phase separation is found or not. The phase separation to two phases consisting of an antimony core and a gallium shell proceeds after incubation time with increasing electron dose and does only at the dose rate above a threshold value. It is suggested that such nonlinear behaviors take place as a cooperative phenomenon among electronic-excitation effect, nano-size effect and temperature.


2014 ◽  
Vol 16 (17) ◽  
pp. 7741-7748 ◽  
Author(s):  
Shengjie Ling ◽  
Zeming Qi ◽  
Benjamin Watts ◽  
Zhengzhong Shao ◽  
Xin Chen

The combination of FTIR and STXM imaging provides complimentary information that enables a greater understanding of protein-based polymer blends. They can monitor the phase separation behavior of the blends, and show the composition and protein conformation difference in two phases.


2019 ◽  
Vol 123 (27) ◽  
pp. 5866-5874 ◽  
Author(s):  
Kazuhiko Tanimura ◽  
Misaki Amau ◽  
Ryosuke Kume ◽  
Keishi Suga ◽  
Yukihiro Okamoto ◽  
...  

2005 ◽  
Vol 17 (45) ◽  
pp. S3195-S3204 ◽  
Author(s):  
Hajime Tanaka ◽  
Takeaki Araki ◽  
Takehito Koyama ◽  
Yuya Nishikawa
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