Damping nonlinearity in agarose hydrogels under relative humidity: balancing network stiffness and energy dissipation [0.03%]
透明质酸水凝胶的非线性阻尼行为及其湿度依赖性研究
Ikenna Ojoboh,Manuel Dedola,Katherine Nelms et al.
Ikenna Ojoboh et al.
Sustainable, biodegradable elastomers are needed to replace fossil-based alternatives and reduce the environmental impact of traditional vibration damping materials. We investigate agarose-based hydrogels as eco-friendly vibration absorbers...
Spontaneous spatial sorting by cell shape in growing colonies of rod-like bacteria [0.03%]
杆状细菌生长菌落中细胞形态引起的自发空间排序现象
Mateusz Ratman,Jimmy Gonzalez Nuñez,Daniel A Beller
Mateusz Ratman
Mechanical interactions among cells in a growing microbial colony can significantly influence the colony's spatial genetic structure and, thus, evolutionary outcomes such as the fates of rare mutations. Here, we computationally investigate ...
The influence of ink preparation on the properties of 3D-printed liquid crystal elastomers [0.03%]
墨水制备对三维打印液晶弹性体性能的影响
Kyle Carothers,Jared Gibson,Mia Carrola et al.
Kyle Carothers et al.
Liquid crystal elastomers (LCEs) are excellent soft active materials for applications such as artificial muscles and soft robotics due to their capacity for large, reversible, and stimuli-responsive shape changes. This actuation depends on ...
Sameer Rajendra Kalghatgi,Sumesh P Thampi,Sanat K Kumar et al.
Sameer Rajendra Kalghatgi et al.
The crystallization of a subcooled polymer melt, described by a local scalar internal variable ϕ, is modeled by non-equilibrium thermodynamics, specifically using a dissipation argument. The formulation yields a pair of nonlinear different...
Leo-Stanley Chibuike Ndunagum,Gurmeet Singh,Fardad Azarmi et al.
Leo-Stanley Chibuike Ndunagum et al.
Many mishaps in the marine, transport, and energy sectors have resulted from the adhesion of ice to surfaces, prompting the need for anti-icing and de-icing strategies. Using coatings of soft elastomers such as polydimethylsiloxane (PDMS) h...
Drying of polymer solutions: formation of glassy crust and gelled skin [0.03%]
聚合物溶液的干燥：玻璃状外壳和凝胶态表皮的形成
Laurence Talini,François Lequeux,Jean-Baptiste Salmon
Laurence Talini
When a polymer solution film dries, a vertical concentration gradient may form, which leads to the formation of either a gelled skin or a thin glassy crust. The former is associated with a slight increase in the mutual diffusion coefficient...
Computational exploration of the structure and mechanical behaviour of hybrid epoxy-acrylate dual-cure systems [0.03%]
杂环氧丙烯酸酯双固化体系的结构与力学行为的计算研究
Shruti Iyer,Zheng Yu,Zachariah A Page et al.
Shruti Iyer et al.
Wavelength-selective dual-cure epoxy-acrylate polymers have recently been demonstrated experimentally as a platform for generating large mechanical contrasts from a single material system for additive manufacturing [Kim et al., Nat. Mater.,...
Designing DNA nanostar hydrogels for sequence-specific degradation and antibody release [0.03%]
设计DNA纳米星水凝胶以实现序列特异性降解和抗体释放
Giorgia Palombo,Christine A Merrick,Jennifer Harnett et al.
Giorgia Palombo et al.
DNA nanostar (DNAns) hydrogels are promising materials for in vivo applications, including tissue regeneration and drug and antibody delivery. However, a systematic and quantitative understanding of the design principles controlling their d...
Jooyeon Park,Théophile Meiller,Sreeram Rajesh et al.
Jooyeon Park et al.
The impact of polymer solution droplets on granular beds is relevant to powder processing, binder-jetting additive manufacturing, and environmental applications involving erosion control or spray deposition, yet most controlled studies of d...
Collagen type II dynamics and assembly in anisotropic porous polyacrylamide hydrogels [0.03%]
各向异性多孔聚丙烯酰胺水凝胶中的II型胶原动力学及聚集态行为研究
Mario Tsai,Adediwura Deborah Adedeji,Sneha Suresh et al.
Mario Tsai et al.
Inspired by liquid crystallinity and hierarchical organization in natural systems, we fabricate anisotropic polyacrylamide (PAAm) networks by templating polymerization around disodium cromoglycate (DSCG) liquid crystal phases. These anisotr...