Soft Matter
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#1Yannick NziakouH-Index: 1
#2Matthieu GeorgeH-Index: 10
Last. Matteo CiccottiH-Index: 21
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Both an experimental and a theoretical investigation of the fracture propagation mechanisms acting at the process zone scale in glassy polymers are presented. The main aim is to establish a common modeling for different kinds of glassy polymers presenting either steady-state fracture propagation or stick-slip fracture propagation or both, depending on loading conditions and sample shape. On the experimental point of view, new insights are provided by in-situ AFM measurements of the viscoplastic ...
#1Jonghyun Ha (UIUC: University of Illinois Urbana-Champaign)H-Index: 5
#2Yun Seong Kim (UIUC: University of Illinois Urbana-Champaign)H-Index: 1
Last. Sameh H Tawfick (UIUC: University of Illinois Urbana-Champaign)H-Index: 25
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Drying of fine hair and fibers induces dramatic capillary-driven deformation, with important implications on natural phenomena and industrial processes. We recently observed peculiar self-assembly of hair bundles into various distinct patterns depending on the interplay between the bundle length and the liquid drain rate. Here, we propose a mechanism for this pattern selection, and derive and validate theoretical scaling laws for the polymorphic self-assembly of polygonal hair bundles. Experimen...
#1Elham VazirinasabH-Index: 6
#2Khosrow MaghsoudiH-Index: 8
Last. Reza JafariH-Index: 20
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To address the increased demand for greater mechanical robustness of superhydrophobic and icephobic surfaces, we fabricated damage-tolerant, abrasion-insensitive, and icephobic superhydrophobic bulk nanocomposites using a facile, cost-effective, industrially applicable, and environmentally benign strategy. We prepared nanocomposites composed of high-temperature vulcanized silicone rubber through the highly controlled incorporation of nanosized fumed silica and microsized aluminum trihydrate part...
#1Chao LangH-Index: 12
#2Manish Kumar (The University of Texas at Austin)H-Index: 31
Last. Robert J. Hickey (PSU: Pennsylvania State University)H-Index: 18
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One of the most efficient and promising separation alternatives to thermal methods such as distillation is the use of polymeric membranes that separate mixtures based on molecular size or chemical affinity. Self-assembled block copolymer membranes have gained considerable attention within the membrane field due to precise control over nanoscale structure, pore size, and chemical versatility. Despite the rapid progress and excitement, a significant hurdle in using block copolymer membranes for na...
#1Fan Cui (NYU: New York University)
#2David J. Pine (NYU: New York University)H-Index: 71
Total internal reflection microscopy (TIRM) measures changes in the distance between a colloidal particle and a transparent substrate by measuring the scattering intensity of the particle illuminated by an evanescent wave. From the distribution of the recorded separation distances, the height-dependent effective potential φ(z) between the colloidal particle and the substrate can be measured. In this work, we show that spatial resolution with which TIRM can measure φ(z) is limited by the photon c...
#1James M. Polson (UPEI: University of Prince Edward Island)H-Index: 19
#2Edgar J. Garcia (CSULB: California State University, Long Beach)
Last. Alexander R. Klotz (CSULB: California State University, Long Beach)H-Index: 12
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Recent experiments have elucidated the physical properties of kinetoplasts, which are chain-mail-like structures found in the mitochondria of trypanosome parasites formed from catenated DNA rings. Inspired by these studies, we use Monte Carlo simulations to examine the behavior of two-dimensional networks (“membranes”) of linked rings. For simplicity, we consider only identical rings that are circular and rigid and that form networks with a regular linking structure. We find that the scaling of ...
#1Michael BleyH-Index: 1
#2Pablo I. HurtadoH-Index: 21
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We employ Reactive Dynamical Density Functional Theory (R-DDFT) and Reactive Brownian Dynamics (R-BD) simulations to investigate the dynamics of a suspension of active soft Gaussian colloids with binary interaction switching, i.e., a one-component colloidal system in which every particle stochastically switches at predefined rates between two interaction states with different mobility. Using R-DDFT we extend a theory previously developed to access the dynamics of inhomogeneous liquids [Archer et...
#1Wei Wang (ANL: Argonne National Laboratory)
#2Jianguo Wen (ANL: Argonne National Laboratory)H-Index: 56
Last. Xuedan Ma (UC: University of Chicago)
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The construction of functional nano-/micro-architectures through self-assembly and self-organization of organic molecules and polymeric materials plays an important role in the development of many technologies. In this study, we report the spontaneous formation of uniform polymer microrods with lengths of up to a few tens of micrometers from paraffin wax. Through a solvent attrition approach, colloidal structures of paraffin wax are introduced into water. After the initial growth stage, the micr...
#1Dmitry V. Vishnevetskii (Institute of Business & Medical Careers)
#2Dmitry V. Averkin (Tver State University)H-Index: 1
Last. E. Ruehl (FU: Freie Universität Berlin)
view all 7 authors...
We report a new and the most simple strategy for the synthesis of silver molybdate functional composite microspheres based on low molecular weight gelators –amino acids, silver salts and heptamolybdate ions. The resulting material shows a high photocatalytic activity with respect to the methylene blue dye degradation at neutral pH.
#1Szu-Hao Cho (University of Akron)H-Index: 1
#2Elizabeth A. Lewis (University of Akron)H-Index: 2
Last. Bryan D. Vogt (PSU: Pennsylvania State University)H-Index: 38
view all 4 authors...
Layer-by-layer (LbL) assembly facilitates controlled coatings on a variety of surfaces with the ability to manipulate the composition through the thickness by selection of the complementary pairs. However, the characterization of these composition profiles tends to be destructive and requires significant compositional differences that can limit their utility. Here, we demonstrate the ability to non-destructively quantify the depth dependence of the allyl content associated with the selective inc...
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