Morphing Metal-Polymer Janus Particles

2013 ◽  
Vol 26 (6) ◽  
pp. 899-904 ◽  
Author(s):  
Lewis M. Cox ◽  
Jason P. Killgore ◽  
Zhengwei Li ◽  
Zheng Zhang ◽  
Donna C. Hurley ◽  
...  
Keyword(s):  
Janus Particles ◽  
Metal Polymer

scholarly journals Substrate wettability guided oriented self assembly of Janus particles

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Meneka Banik ◽  
Shaili Sett ◽  
Chirodeep Bakli ◽  
Arup Kumar Raychaudhuri ◽  
Suman Chakraborty ◽  
...  
Keyword(s):  
Self Assembly ◽  
Janus Particles ◽  
Water Molecules ◽  
Functional Coatings ◽  
Hexagonal Close Packed ◽  
Local Densities ◽  
Inhomogeneous Properties ◽  
Metal Polymer ◽  
Specific Orientation

AbstractSelf-assembly of Janus particles with spatial inhomogeneous properties is of fundamental importance in diverse areas of sciences and has been extensively observed as a favorably functionalized fluidic interface or in a dilute solution. Interestingly, the unique and non-trivial role of surface wettability on oriented self-assembly of Janus particles has remained largely unexplored. Here, the exclusive role of substrate wettability in directing the orientation of amphiphilic metal-polymer Bifacial spherical Janus particles, obtained by topo-selective metal deposition on colloidal Polymestyere (PS) particles, is explored by drop casting a dilute dispersion of the Janus colloids. While all particles orient with their polymeric (hydrophobic) and metallic (hydrophilic) sides facing upwards on hydrophilic and hydrophobic substrates respectively, they exhibit random orientation on a neutral substrate. The substrate wettability guided orientation of the Janus particles is captured using molecular dynamic simulation, which highlights that the arrangement of water molecules and their local densities near the substrate guide the specific orientation. Finally, it is shown that by spin coating it becomes possible to create a hexagonal close-packed array of the Janus colloids with specific orientation on differential wettability substrates. The results reported here open up new possibilities of substrate-wettability driven functional coatings of Janus particles, which has hitherto remained unexplored.

CHEMISTRY AND MICROSTRUCTURE AT METAL-POLYMER INTERFACES

1988 ◽  
Vol 49 (C5) ◽  
pp. C5-49-C5-59 ◽  
Author(s):  
P. S. HO ◽  
R. HAIGHT ◽  
R. C. WHITE ◽  
B. D. SILVERMAN
Keyword(s):  
Polymer Interfaces ◽  
Metal Polymer

A Quantitative Theory for the Computation of Tire Friction Under Severe Conditions of Sliding

1986 ◽  
Vol 14 (1) ◽  
pp. 44-72 ◽  
Author(s):  
C. M. Mc C. Ettles
Keyword(s):  
Friction Coefficient ◽  
Flash Temperature ◽  
Contact Conditions ◽  
Quantitative Form ◽  
Heating Effects ◽  
Rubber Friction ◽  
Viscoelastic Effects ◽  
Tire Friction ◽  
Pavement Friction ◽  
Metal Polymer

Abstract It is proposed that tire-pavement friction is controlled by thermal rather than by hysteresis and viscoelastic effects. A numerical model of heating effects in sliding is described in which the friction coefficient emerges as a dependent variable. The overall results of the model can be expressed in a closed form using Blok's flash temperature theory. This allows the factors controlling rubber friction to be recognized directly. The model can be applied in quantitative form to metal-polymer-ice contacts. Several examples of correlation are given. The difficulties of characterizing the contact conditions in tire-pavement friction reduce the model to qualitative form. Each of the governing parameters is examined in detail. The attainment of higher friction by small, discrete particles of aluminum filler is discussed.

Chemical Characterization of Metal/Polymer interface

2015 ◽  
Vol 84 (8) ◽  
pp. 591-595 ◽  
Author(s):  
Yukiko IZUMI ◽  
Naoki BADEN ◽  
Kazuhiro MATSUDA
Keyword(s):  
Chemical Characterization ◽  
Polymer Interface ◽  
Metal Polymer

scholarly journals Flexible Metal/Polymer Composite Films Embedded with Silver Nanowires as a Stretchable and Conductive Strain Sensor for Human Motion Monitoring

Micromachines ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 372 ◽  
Author(s):  
Jinjin Luan ◽  
Qing Wang ◽  
Xu Zheng ◽  
Yao Li ◽  
Ning Wang
Keyword(s):  
Polymer Composite ◽  
Silver Nanowires ◽  
Composite Films ◽  
Strain Sensor ◽  
High Sensitivity ◽  
Human Motion ◽  
Applied Strain ◽  
Potential Candidate ◽  
Flexible Metal ◽  
Metal Polymer

To avoid conductive failure due to the cracks of the metal thin film under external loads for the wearable strain sensor, a stretchable metal/polymer composite film embedded with silver nanowires (AgNWs) was examined as a potential candidate. The combination of Ag film and AgNWs enabled the fabrication of a conductive film that was applied as a high sensitivity strain sensor, with gauge factors of 7.1 under the applied strain of 0–10% and 21.1 under the applied strain of 10–30%. Furthermore, the strain sensor was demonstrated to be highly reversible and remained stable after 1000 bending cycles. These results indicated that the AgNWs could act as elastic conductive bridges across cracks in the metal film to maintain high conductivity under tensile and bending loads. As such, the strain sensor engineered herein was successfully applied in the real-time detection and monitoring of large motions of joints and subtle motions of the mouth.

Formation of the multifunctional metal-polymer composite with antiseptic, anesthetic and bactericidal properties by green technologies

2018 ◽  
Author(s):  
E. E. Said-Galiev ◽  
M. S. Rubina ◽  
A. Yu. Vasil’kov ◽  
A. V. Naumkin ◽  
A. R. Khokhlov ◽  
...  
Keyword(s):  
Polymer Composite ◽  
Green Technologies ◽  
Bactericidal Properties ◽  
Metal Polymer

scholarly journals Active Janus particles in a complex plasma

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
V. Nosenko ◽  
F. Luoni ◽  
A. Kaouk ◽  
M. Rubin-Zuzic ◽  
H. Thomas
Keyword(s):  
Janus Particles ◽  
Complex Plasma

scholarly journals Thermophoresis of Janus particles at large Knudsen numbers

2018 ◽  
Vol 3 (9) ◽  
Author(s):  
Tobias Baier ◽  
Sudarshan Tiwari ◽  
Samir Shrestha ◽  
Axel Klar ◽  
Steffen Hardt
Keyword(s):  
Janus Particles ◽  
Knudsen Numbers
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