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Scalable hydrogen production using proton exchange membrane water electrolyzers depends on overcoming efficiency losses arising from coupled multiphase, multicomponent transport and interfacial phenomena across the membrane electrode…

Macrocellular silicone polymers are obtained after solidification of the continuous phase of a PDMS (polydimethylsiloxane) emulsion, which contains PEG (polyethylene glycol) drops of sub-millimetric dimensions. Coalescence of the liquid…

Soft Condensed Matter · Physics 2016-10-21 Anaïs Giustiniani , Philippe Guégan , Manon Marchand , Christophe Poulard , Wiebke Drenckhan

Light weight and mechanically robust cellular polymer nanofilms provide materials solutions to many cutting-edge technologies, such as high-flux membrane filtration, ultrathin flexible energy storage, and skin-conformable devices. However,…

Materials Science · Physics 2020-11-24 Ping Gao , Qiao Gu , Jin Li , Runlai Li , Qinghua Zhang , Lu-tao Weng , Tianshou Zhao , T. X. Yu , Minhua Shao , Khalil Amine

Some highly unusual features of a lipid-water liquid crystal are revealed by high pressure x-ray diffraction, light scattering and dilatometric studies of the lamellar (bilayer $L_{\alpha}$) to nonlamellar inverse hexagonal ($H_{II}$) phase…

Condensed Matter · Physics 2009-10-22 P. T. C. So , Sol M. Gruner , Shyamsunder Erramilli

Precisely measuring pressure in microfluidic flows is essential for flow control, fluid characterization, and monitoring, but faces specific challenges such as \RE{achieving} sufficient resolution, non-invasiveness, or ease of use. Here, we…

Recent synthesis of monolayer fullerene networks [$Nature$ 606, 507 (2022)] provides new opportunities for photovoltaics and photocatalysis because of their versatile crystal structures for further tailoring of electronic, optical and…

Materials Science · Physics 2023-12-29 Cory Jones , Bo Peng

In this study, we investigate the appeared complexity of two-phase flow (air/water) in a heterogeneous soil where the supposed porous media is non-deformable media which is under the timedependent gas pressure. After obtaining of governing…

Computational Engineering, Finance, and Science · Computer Science 2010-09-01 Hamed O. Ghaffari

Engineering simple, artificial models of living cells allows synthetic biologists to study cellular functions under well-controlled conditions. Reconstituting multicellular behaviors with synthetic cell-mimics is still a challenge because…

Biomolecules · Quantitative Biology 2021-04-29 Imre Banlaki , Francois-Xavier Lehr , Henrike Niederholtmeyer

We firstly demonstrate physically-prepared compliant PVA hydrogel electrodes as a promising supplement in dielectric elastomer actuators. They are capable of conducting high voltages over 5 kV without electrolysis by an electrical double…

Materials Science · Physics 2014-09-10 Chengyi Xu , Chunye Xu , Jianming Zheng

Acid-induced release of stored ions from polyacrylic acid hydrogels (with a free surface fully permeable to the ion and acid flux) was observed to increase the gel osmotic pressure that leads to rapid, temporary swelling faster than the…

Soft Condensed Matter · Physics 2024-01-24 Chinmay Katke , Peter A. Korevaar , C. Nadir Kaplan

A desktop experiment has been done to show the nonlinearity in the I-V characteristics of an ion conducting electrochemical micro-system. Its chaotic dynamics is being reported for the first time which has been captured by an electronic…

Chaotic Dynamics · Physics 2015-06-04 Sangeeta Rawat , Barnamala Saha , Awadhesh Prasad , Amita Chandra

The advent of graphene created a revolution in materials science. Because of this there is a renewed interest in other carbon-based structures. Graphene is the ultimate (just one atom thick) membrane. It has been proposed that graphene can…

Mesoscale and Nanoscale Physics · Physics 2017-01-24 Vinicius Splugues , Pedro Alves da Silva Autreto , Douglas S. Galvao

Photodynamically active fibres (PAFs) are a novel class of stimulus-sensitive systems capable of triggering antibiotic-free antibacterial effect on-demand when exposed to light. Despite their relevance in infection control, however, the…

Tissues and Organs · Quantitative Biology 2021-01-07 Amy Contreras , Michael J. Raxworthy , Simon Wood , Giuseppe Tronci

The layers of graphene oxide (GO) are found to be good for permeation of water but not for helium (Science 2012 335 (6067): 442-444) suggesting that the GO layers are dynamic in the formation of permeation route depending on the environment…

Mesoscale and Nanoscale Physics · Physics 2015-10-01 Nallani Raghav , Sudip Chakraborty , Prabal K. Maiti

Extensibility is beyond the paradigm of classical soft glassy materials, and more broadly, yield-stress fluids. Recently, model yield-stress fluids with significant extensibility have been designed by adding polymeric phases to classically…

Soft Condensed Matter · Physics 2023-11-29 Samya Sen , Rubens R. Fernandes , Randy H. Ewoldt

Biological hydrogels have been increasingly sought after as e.g. wound dressings or scaffolds for regenerative medicine, due to their inherent biofunctionality in biological environments. Especially in moist wound healing, the ideal…

Chemical Physics · Physics 2014-10-24 Giuseppe Tronci , Colin A. Grant , Neil H. Thomson , Stephen J. Russell , David J. Wood

In this paper, we study the effects of both the amount of open cell walls and their aperture sizes on solid foams permeability. FEM flow simulations are performed at both pore and macroscopic scales. For foams with fully interconnected…

Soft Condensed Matter · Physics 2018-06-06 V. Langlois , V. H. Trinh , C. Lusso , C. Perrot , X. Chateau , Y. Khidas , O. Pitois

From microactuators to biological tissues, non-porous materials with the ability to strongly expand when in contact with a solvent are ubiquitous. Consequently, the swelling of polymer systems such as hydrogel has received recently much…

Soft Condensed Matter · Physics 2024-11-04 George T. Fortune , Merlin A. Etzold , Julien R. Landel , Stuart B. Dalziel

Hyaluronic acid is an abundant polyelectrolyte in the human body that forms extracellular hydrogels in connective tissues. It is essential for regulating tissue biomechanics and cell-cell communication, yet hyaluronan overexpression is…

Porous membranes are thin solid structures that allow the flow to pass through their tiny openings, called pores. Flow inertia may play a significant role in several filtration flows of natural and engineering interest. Here, we develop a…

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