Polysiloxane Lce
Polysiloxane Lce - Related Videos
11:49
Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application
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Cited by 9 •
2019
This study describes synthetic routes for aminopropyl-terminated polydimethylsiloxanes and polydimethyl-methyl-phenyl-siloxane-block copolymers and for soft polysiloxane-based urea (PSU) elastomers. It presents the application of PSUs as accommodating an intraocular lens. An evaluation method for in vitro cytotoxicity is also described.
08:17
Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale
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2016
Here, we fabricate 3D polymeric micro/nano structures in which both the shape and the molecular alignment can be engineered with nanometer scale accuracy by the use of direct laser writing. Light induced deformation of several types of liquid crystalline elastomer microstructures can be controlled in the microscopic scale.
07:07
Tumor Hypoxia Assessment: In Vivo 3D Oxygen Imaging Through Electron Paramagnetic Resonance
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Cited by 1 •
2025
Quantitative 3D oxygen maps of murine tumors were imaged noninvasively using Pulse Electron Paramagnetic Resonance. Ultrasound B-mode and Power Doppler were used for anatomy and vascular structure. Images from both modalities were superimposed enabling multi-parametric tumor analysis.
06:43
Fluid Aspiration from Mouse Glomeruli: A Method to Aspirate Glomerular Fluid from Mouse Using Two-Photon Mediated Micropuncture
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2023
This video showcases fluid aspiration from mouse glomeruli using the two-photon mediated micropuncture technique. The technique provides access to the living mouse’s glomeruli and thus helps gain insights into renal physiology.
12:21
Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
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Cited by 8 •
2016
We demonstrate the preparation of siloxane-based and epoxy-based liquid crystal elastomers (LCEs) and LCE nanocomposites. The LCEs are characterized with respect to reversible strain, liquid crystal ordering, and stiffness. As a potential application, we demonstrate their use as shape-responsive substrates in a custom device for active cell culture.
FAQs
Motion arises because aligned liquid-crystal mesogens are embedded in a crosslinked polysiloxane network. When the mesogens change their molecular order, the network responds through directional deformation rather than uniform expansion. This coupling between molecular organization and elastic structure allows a sample to contract, expand, or bend, giving researchers a way to convert environmental changes into controlled mechanical movement.
Mesogen alignment creates anisotropy, meaning the material responds differently along different directions. That directional response is essential for producing organized contraction, expansion, or bending instead of nonspecific deformation. By controlling alignment within the polymer network, researchers can relate molecular orientation to the intended motion of a soft actuator, artificial muscle, or biomimetic structure.
Ordinary elastic polymers primarily provide shape recovery and mechanical compliance, whereas Polysiloxane LCEs add direction-dependent motion from liquid-crystal organization. Their crosslinked polysiloxane network supplies flexibility, while mesogen order supplies a stimulus-responsive mechanism. This combination enables reversible shape changes that are not explained by elasticity alone, making the materials relevant to adaptive devices and soft mechanical systems.
The outcome depends on how liquid-crystal mesogens are organized within the network, how the polysiloxane elasticity is tuned, and which external condition triggers the order change. These factors influence whether the response appears mainly as contraction, expansion, or bending. Microscale fabrication also affects how the material can be incorporated into compact responsive structures for bioengineering research.
A conceptual workflow begins by forming a crosslinked polysiloxane network containing aligned mesogens, selecting the desired elastic response, and shaping the material through microscale fabrication when needed. Researchers then apply an external stimulus and examine the resulting deformation. This sequence connects molecular organization and material design with the motion required for a particular soft device or biomimetic structure.
They are useful when a device must combine flexibility with reversible, direction-dependent movement. Reported research contexts include soft actuators, artificial muscle systems, adaptive biomedical devices, and biomimetic structures. Their tunable elasticity and compatibility with microscale fabrication support designs intended to interact mechanically with biological environments while remaining responsive to external conditions.
Artificial muscle research can use their reversible contraction or expansion as an active mechanical response. The liquid-crystal network provides organized deformation, while the polysiloxane component contributes flexible elastic behavior. By tuning these features, researchers can investigate soft systems that imitate selected aspects of muscle-like movement, especially where compact structures and stimulus-driven actuation are important.
Researchers can evaluate the direction and reversibility of deformation, including contraction, expansion, or bending after stimulation. They can also assess whether the material's elasticity and microscale form match the intended device function. In adaptive biomedical research, these observations help determine how effectively the elastomer can provide controlled mechanical interaction with biological environments.