Thermoresponsive oil-continuous gels based on double-interpenetrating colloidal-particle networks

Soft Matter, Journal Year: 2024, Volume and Issue: 20(14), P. 3033 - 3043

Published: Jan. 1, 2024

Gels of multicomponent building blocks offer promising opportunities for the development novel soft materials with unique and useful structures properties.

Language: Английский

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Recent Advances in Soft Matter

Materials, Journal Year: 2025, Volume and Issue: 18(7), P. 1440 - 1440

Published: March 25, 2025

As the current Section Editor for Soft Matter of Materials, I am delighted to be able present a Special Issue journal:

Language: Английский

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Chiral, Topological, and Knotted Colloids in Liquid Crystals

Crystals, Journal Year: 2024, Volume and Issue: 14(10), P. 885 - 885

Published: Oct. 11, 2024

The geometric shape, symmetry, and topology of colloidal particles often allow for controlling phase behavior physical properties these soft matter systems. In liquid crystalline dispersions, with low symmetry nontrivial surface confinement are particular interest, including surfaces shaped as handlebodies, spirals, knots, multi-component links, so on. These types induce topologically three-dimensional director field configurations topological defects. Director switching by electric fields, laser tweezing defects, local photo-thermal melting the crystal host medium promote transformations among many stable metastable particle-induced that can be revealed means direct label-free nonlinear optical imaging. interplay between topologies surfaces, defects is found to show a number unexpected features, such knotting linking line uniquely arising from nonpolar nature nematic field. This review article highlights fascinating examples new molecular order both chiral inclusions within host. Furthermore, concludes brief discussion how findings may lay groundwork topology-dictated self-assembly in condensed leading novel mesostructured composite materials, well experimental insights into pure-math aspects low-dimensional topology.

Language: Английский

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An Approach to Monodisperse Polymeric Particles as Matrices for Immobilization of Biosystems

Physchem, Journal Year: 2025, Volume and Issue: 5(1), P. 2 - 2

Published: Jan. 2, 2025

In this paper, the benefits of using monodisperse polymeric particles as matrices to immobilize biosystems are presented and discussed. The nature polymer (natural, synthetic, or semisynthetic) immobilization techniques were directly related performance process. addition, work reviews major biological synthetic entities that have been immobilized on their potential applications available in literature. research revealed enzymes, proteins, cells, drugs main matrices. Several physicochemical characterization discussed determine presence after some enzymes different areas also since biomolecule was most frequent entity terms Finally, review describes advances materials used supports for immobilizing due interesting physical chemical properties.

Language: Английский

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Controlling multistimuli elastic response by bistable micromodules

Physical review. E, Journal Year: 2025, Volume and Issue: 111(2)

Published: Feb. 7, 2025

Controlling the elastic response of materials to multiple stimuli is a key prerequisite for design adaptive soft matter, e.g., applications in medicine or robotics. Here, we discuss statistical mechanics model which nonlinear governed by mechanically coupled bistable micromodules can be switched external stimuli. Exact analytical solutions show complex stimuli-mediated, stiffening/softening responses tuneable microscopic switching parameters. Importantly, report up two maxima softness (compliance) originating from cooperative transitions and how control their existence properties. We demonstrate usefulness fitting it experimental extension-force data on various scales. further illustrate explore entire map as function stimuli, utilizing distinct pathways either cancel/reset amplify through combination these Our analysis should useful elasticity, microgel networks mechanical metamaterials. Published American Physical Society 2025

Language: Английский

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Modeling the Temperature-Dependent Size Change of Polydisperse Nano-objects using a Deep Generative Model

Nano Letters, Journal Year: 2024, Volume and Issue: 24(15), P. 4447 - 4453

Published: April 8, 2024

Modern microscopy techniques can be used to investigate soft nano-objects at the nanometer scale. However, time-consuming measurements combined with low numbers of observable polydisperse objects often limit statistics. We propose a method for identifying most representative from their respective point clouds. These cloud data are obtained, example, through localization single emitters in super-resolution fluorescence microscopy. External stimuli, such as temperature, cause changes shape and properties adaptive objects. Due demanding nature experiments, only limited number temperature steps performed. Therefore, we deep generative model that learns underlying distribution temperature-dependent microgels, enabling reliable generation unlimited samples an arbitrary localizations. Our greatly cuts down collection effort across diverse experimental conditions, proving invaluable condensed matter studies.

Language: Английский

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Space-resolved dynamic light scattering within a millimeter-sized drop: From Brownian diffusion to the swelling of hydrogel beads

Physical review. E, Journal Year: 2024, Volume and Issue: 109(6)

Published: June 27, 2024

We present a dynamic light scattering setup to probe, with time and space resolution, the microscopic dynamics of soft matter systems confined within millimeter-sized spherical drops. By using an ad hoc optical layout, we tackle challenges raised by refraction effects due unconventional shape samples. first validate investigating suspension Brownian particles. The measured at different positions in drop, hence angles, are found be excellent agreement those obtained for same sample conventional setup. then demonstrate capabilities bead made polymer hydrogel undergoing swelling. gel exhibit dependence that strongly varies elapsed since beginning Initially, periphery much faster than core, indicative nonuniform As swelling proceeds, slow down become more spatially homogeneous. comparing experimental results numerical analytical calculations homogeneous, purely elastic sphere swelling, establish mean square displacement strands deviates from affine motion inferred macroscopic deformation, evolving fast diffusivelike onset slower, yet supradiffusive, rearrangements later stages.

Language: Английский

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Surface Deformation of Biocompatible Materials: Recent Advances in Biological Applications

Biomimetics, Journal Year: 2024, Volume and Issue: 9(7), P. 395 - 395

Published: June 28, 2024

The surface topography of substrates is a crucial factor that determines the interaction with biological materials in bioengineering research. Therefore, it important to appropriately modify according research purpose. Surface can be fabricated various forms, such as wrinkles, creases, and ridges using deformation techniques, which contribute performance enhancement cell chips, organ biosensors. This review provides comprehensive overview characteristics soft, hard, hybrid used field techniques applied substrates. Furthermore, this summarizes cases cell-based other applications, biosensor research, utilize techniques. In studies have reported optimized behavior differentiation through deformation, while, biofilm fields, improvement due been reported. Through these studies, we confirm contribution advancement field. future, expected application real-time analysis between dynamically deformable will increase utilization importance including

Language: Английский

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Observation of liquid glass in molecular dynamics simulations

The Journal of Chemical Physics, Journal Year: 2024, Volume and Issue: 160(16)

Published: April 24, 2024

Molecular anisotropy plays an important role in the glass transition of a liquid. Recently, novel bulk state has been discovered by optical microscopy experiments on suspensions ellipsoidal colloids. “Liquid glass” is disordered analog nematic liquid crystal, which rotation motion hindered but particles diffuse freely. Global order suppressed as clusters aligned intertwine. We perform Brownian dynamics simulations to test structure and dense system soft particles. As seen accordance with predictions from mode coupling theory, time scale our simulations, frozen translation persists glass. Analyses dynamic functions for corroborates presence two separate transitions translation, respectively. Even though equilibrium should be nematic, structures remain small orientational rapidly decays increasing size. Long-wavelength fluctuations are remnants isotropic-nematic transition.

Language: Английский

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Observation of Liquid Glass in Molecular Dynamics Simulations

arXiv (Cornell University), Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Molecular anisotropy plays an important role in the glass transition of a liquid. Recently, novel bulk state has been discovered by optical microscopy experiments on suspensions ellipsoidal colloids. 'Liquid glass' is disordered analog nematic liquid crystal, which rotation motion hindered but particles diffuse freely. Global order suppressed as clusters aligned intertwine. We perform Brownian dynamics simulations to test structure and dense system soft particles. As seen accordance with predictions from mode coupling theory, time scale our frozen translation persists glass. Analyses dynamic functions for corroborates presence two separate transitions translation, respectively. Even though equilibrium should be nematic, structures remain small orientational rapidly decays increasing size. Long-wavelength fluctuations are remnants isotropic-nematic transition.

Language: Английский

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