Results 71 to 80 of about 72,241 (278)

Isotropic-Nematic Transition in Liquid-Crystalline Elastomers

, 2002
In liquid-crystalline elastomers, the nematic order parameter and the induced strain vary smoothly across the isotropic-nematic transition, without the expected first-order discontinuity.
B. R. Ratna, E. M. Terentjev, Hong G. Jeon, J. Schätzle, Jonathan V. Selinger, P. G. de Gennes, S. Disch, W. Kaufhold   +7 more
core   +1 more source

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

Advanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee, Inhoo Choi, Anara Molkenova, Yengwoo Son, Seungmin Yang, Mina Kwon, Tae‐Im Kim, Ki Su Kim, Sei Kwang Hahn   +8 more
wiley   +1 more source

The effect of dietary pigmentation on the esthetic appearance of clear orthodontic elastomeric modules

Journal of Orthodontic Science, 2016
Objective: To compare the stain resistance of three types of clear elastomeric modules exposed to several common dietary substances through the assessment of the perception of a group of dentists to discoloration using visual analog scale (VAS ...
Nabeel F Talic, Abdullazez A Almudhi
doaj   +1 more source

Synthesis of bio-based thermoplastic polyurethane elastomers containing isosorbide and polycarbonate diol and their biocompatible properties. [PDF]

, 2015
A new family of highly elastic polyurethanes (PUs) partially based on renewable isosorbide were prepared by reacting hexamethylene diisocyanate with a various ratios of isosorbide and polycarbonate diol 2000 (PCD) via a one-step bulk condensation ...
Gong, MS, Kang, MS, Knowles, JC, Oh, SY
core   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Nonlinear Elasticity, Fluctuations and Heterogeneity of Nematic Elastomers

, 2007
Liquid crystal elastomers realize a fascinating new form of soft matter that is a composite of a conventional crosslinked polymer gel (rubber) and a liquid crystal. These {\em solid} liquid crystal amalgams, quite similarly to their (conventional, fluid)
Anderson, Aronovitz, Bellini, Chaikin, Clarke, de Gennes, de Gennes, Deam, DiDonna, Dotsenko, Edwards, Ettouham, Fisher, Fisher, Fridrikh, Goldbart, Golubović, Grinstein, Grinstein, Hagen, Kundler, Kupfer, Kupfer, Kutter, Landau, Leo Radzihovsky, Love, Lubensky, Ma, Mao, Nelson, Nelson, Nelson, Ogden, Olmsted, Radzihovsky, Radzihovsky, Radzihovsky, Rubinstein, Saunders, Selinger, Stenull, Stenull, Terentjev, Treloar, Warner, Warner, Warner, Wilson, Xiangjun Xing, Xing, Xing, Ye   +52 more
core   +1 more source

Visco-hyperelastic model with damage for simulating cyclic thermoplastic elastomers behavior applied to an industrial component [PDF]

, 2018
In this work a nonlinear phenomenological visco-hyperelastic model including damage consideration is developed to simulate the behavior of Santoprene 101-73 material.
Elduque, D., Fernández Canteli, Alfonso Carlos, Gracia, L., Ibarz, E., Javierre, C., Tobajas, R.   +5 more
core   +4 more sources

Bioinspired Bromination Enables Extensible, Strain‐Stiffening Resilin Peptide Scaffolds with Tunable Degradation

Advanced Functional Materials, EarlyView.
Bioinspired bromination of a resilin‐derived peptide enables the fabrication of electrospun nanofibrous scaffolds that uniquely combine strain‐stiffening elasticity, proteolytic stability, and antioxidant functionality. These brominated peptide–gelatin hybrids mimic the extensibility of natural elastomers, demonstrating tunable mechanical resilience ...
Elisa Marelli, Lorenzo Sori, Chiara Russo, Claudia Pigliacelli, Lorenza Draghi, Monica Soncini, Pierangelo Metrangolo   +6 more
wiley   +1 more source

Microplastics from Wearable Bioelectronic Devices: Sources, Risks, and Sustainable Solutions

Advanced Functional Materials, EarlyView.
Bioelectronic devices (e.g., e‐skins) heavily rely on polymers that at the end of their life cycle will generate microplastics. For research, a holistic approach to viewing the full impact of such devices cannot be overlooked. The potential for devices as sources for microplastics is raised, with mitigation strategies surrounding polysaccharide and ...
Conor S. Boland
wiley   +1 more source

3D printing of polybutadiene rubber cured by photo-induced thiol-ene chemistry: A proof of concept

eXPRESS Polymer Letters, 2020
Mechanical performance of 3D printed ‘Rubber-like’ commercial resins are not comparable to typical vulcanized diene rubbers since they show lower strain at break.
M. Bragaglia, F. R. Lamastra, V. Cherubini, F. Nanni   +3 more
doaj   +1 more source