Tootfinder

Passive polymers in active turbulence undergo a collapse-stretch transition
Zahra K. Valei, Davide Marenduzzo, Tyler N. Shendruk
https://arxiv.org/abs/2509.23382 https://…

Passive polymers in active turbulence undergo a collapse-stretch transition
Active processes in living systems generate nonequilibrium forces that deform embedded passive macromolecules. To understand how such dynamics influence polymer conformation, we study a flexible passive chain in an active nematic fluid. Using hybrid simulations, we uncover a length-dependent transition in polymer behavior: long chains align with and stretch along defect-driven flows, while short chains bend and collapse due to localized stresses. These responses are controlled by a competition …

Extrapolation of Machine-Learning Interatomic Potentials for Organic and Polymeric Systems
Natalie E. Hooven, Arthur Y. Lin, Rose K. Cersonsky
https://arxiv.org/abs/2509.25022 h…

Extrapolation of Machine-Learning Interatomic Potentials for Organic and Polymeric Systems
Machine-Learning Interatomic Potentials (MLIPs) have surged in popularity due to their promise of expanding the spatiotemporal scales possible for simulating molecules with high fidelity. The accuracy of any MLIP is dependent on the data used for its training; thus, for large molecules, like polymers, where accurate training data is prohibitively difficult to obtain, it becomes necessary to pursue non-traditional methods to construct MLIPs, many of which are based on constructing MLIPs using sm…

ToPolyAgent: AI Agents for Coarse-Grained Topological Polymer Simulations
Lijie Ding, Jan-Michael Carrillo, Changwoo Do
https://arxiv.org/abs/2510.12091 https://

ToPolyAgent: AI Agents for Coarse-Grained Topological Polymer Simulations
We introduce ToPolyAgent, a multi-agent AI framework for performing coarse-grained molecular dynamics (MD) simulations of topological polymers through natural language instructions. By integrating large language models (LLMs) with domain-specific computational tools, ToPolyAgent supports both interactive and autonomous simulation workflows across diverse polymer architectures, including linear, ring, brush, and star polymers, as well as dendrimers. The system consists of four LLM-powered agents…

"Revolutionary Study Shows Plants That Remove Microplastics Work Better Than Current Technology"
#Microplastics #Plastic #Plastics

Revolutionary Study Shows Plants That Remove Microplastics Work Better Than Current Technology | Happy Eco News
Plants that remove microplastics from water could revolutionize treatment methods. Scientists discovered okra and fenugreek extracts capture up to 90% of plastic particles, outperforming synthetic chemicals. These natural, biodegradable alternatives cost less than industrial polymers while avoiding toxic additives, offering safer water treatment for communities worldwide.

🧵Researchers explore new strategies to develop environmentally safe polymer materials
https://phys.org/news/2025-09-explore-strategies-environmentally-safe-polymer.html

Researchers explore new strategies to develop environmentally safe polymer materials
Traditional polymers such as plastics are widely utilized for their chemical inertness and durability. However, these very properties make them non-degradable in nature and cause long-term environmental damage due to their persistence.

Crosslisted article(s) found for math.DS. https://arxiv.org/list/math.DS/new
[1/1]:
- Advanced creep modelling for polymers: A variable-order fractional calculus approach
Jos\'e Geraldo Telles Ribeiro, Americo Cunha Jr

Advanced creep modelling for polymers: A variable-order fractional calculus approach
Jos\'e Geraldo Telles Ribeiro, Americo Cunha Jr
https://arxiv.org/abs/2510.11765 https:/…

Advanced creep modelling for polymers: A variable-order fractional calculus approach
Polymer-based plastics exhibit time-dependent deformation under constant stress, known as creep, which can lead to rupture or static fatigue. A common misconception is that materials under tolerable static loads remain unaffected over time. Accurate long-term deformation predictions require experimental creep data, but conventional models based on simple rheological elements like springs and dampers often fall short, lacking the flexibility to capture the power-law behaviour intrinsic to creep …

Reverse Supply Chain Network Design of a Polyurethane Waste Upcycling System
Dalga Merve \"Ozkan, Sergio Lucia, Sebastian Engell
https://arxiv.org/abs/2510.08097 https://…

Reverse Supply Chain Network Design of a Polyurethane Waste Upcycling System
This paper presents a general mathematical programming framework for the design and optimization of supply chain infrastructures for the upcycling of plastic waste. For this purpose, a multi-product, multi-echelon, multi-period mixed-integer linear programming (MILP) model has been formulated. The objective is to minimize the cost of the entire circular supply chain starting from the collection of post-consumer plastic waste to the production of virgin-equivalent high value polymers, satisfying…

On the Cahn-Hilliard equation with nonlinear diffusion: the non-convex case
Monica Conti, Stefania Gatti, Andrea Giorgini, Giulio Schimperna
https://arxiv.org/abs/2510.08287 htt…

On the Cahn-Hilliard equation with nonlinear diffusion: the non-convex case
We investigate the Cahn-Hilliard equation with nonlinear diffusion and non-degenerate mobility modeling phase separation phenomena in complex systems (e.g., crystals and polymers). Previous results in the literature on this model relied on the strong convexity assumption of the gradient part of the energy, which excludes relevant cases. In this work, we remove the convexity condition and establish new qualitative properties of solutions under general assumptions on the diffusion and mobility fu…

Elasto-viscous regime in coalescence of viscoelastic droplets
Pallavi Katre, Bimalendu Mahapatra, Manaswita Karmakar, Sarang Jagdish, Navin Kumar Chandra, Aloke Kumar
https://arxiv.org/abs/2510.06686

Elasto-viscous regime in coalescence of viscoelastic droplets
We report a regime transition in the coalescence of concentrated polymeric droplets in a pendant-pendant configuration. While Newtonian droplet coalescence has been extensively studied with distinct identification of viscous and inertial regimes, the presence of polymers introduces additional regimes governed by elasticity and molecular relaxation effects. The coalescence process is typically characterized by the neck radius, $R$, of the liquid bridge connecting the two droplets, following a po…

Crosslisted article(s) found for physics.app-ph. https://arxiv.org/list/physics.app-ph/new
[1/1]:
- Advanced creep modelling for polymers: A variable-order fractional calculus approach
Jos\'e Geraldo Telles Ribeiro, Americo Cunha Jr

Polymer Topology and the Depletion Interaction
Mauro L. Mugnai
https://arxiv.org/abs/2510.09890 https://arxiv.org/pdf/2510.09890

Polymer Topology and the Depletion Interaction
Using a theoretical model we show that ideal ring polymers are stronger depletants than ideal linear polymers of equal radii of gyration, but not of equal hydrodynamic radii. The difference in the depletion-induced force profile is largely controlled by the thickness of the depletion layer. Theory suggests that this thickness is equal to the average extent of a polymer along the direction perpendicular to the surfaces of the colloids. Within the limits of finite-size effects, Molecular Dynamics…

Compounding formula approach to chromatin and active polymer dynamics
Takahiro Sakaue, Enrico Carlon
https://arxiv.org/abs/2510.07949 https://arxiv.org/pdf…

Compounding formula approach to chromatin and active polymer dynamics
Active polymers are ubiquitous in nature, and often kicked by persistent noises that break detailed balance. In order to capture the out-of-equilibrium dynamics of such active polymers, we propose a simple yet reliable analytical framework based on a compounding formula. Connecting polymeric dynamics to the isolated monomeric behavior via the notion of tension propagation, the formula allows us to clarify rich scaling scenarios alongside corresponding intuitive physical pictures. We demonstrate…

Finite element models for Self-Deployable Miura-folded origami
Suraj Singh Gehlot, Siddhanth Gautam, Sanhita Das
https://arxiv.org/abs/2510.08029 https://a…

Finite element models for Self-Deployable Miura-folded origami
Origami-inspired self-deployable structures offer lightweight, compact, and autonomous deployment capabilities, making them highly attractive for aerospace and defence applications, such as solar panels, antennas, and reflector systems. This paper presents finite element frameworks for simulating Miura-origami units in ABAQUS, focusing on two deployment mechanisms: elastic strain energy release and thermally activated shape-memory polymers (SMPs). Validation against experimental data for elasti…

Heterogenous Dynamics in a Polymer Solution Revealed through Measurement of Ultraslow Convection
Thomas P. Chaney, Samuel D. Marks, Dylan M. Ladd, Andrei Fluerasu, Federico Zontone, Yuriy Chushkin, Sebastian Fr\"ucht, Dina Sheyfer, Kelsey Levine, Amnahir E. Pe\~na-Alc\'antara, Hans-Georg Steinr\"uck, Michael F. Toney
https://…

Heterogenous Dynamics in a Polymer Solution Revealed through Measurement of Ultraslow Convection
Understanding solution-phase aggregation and dynamics in complex fluids is critical for material processing, yet widely used dynamic light scattering (DLS) fails for strongly attenuating systems such as conjugated polymers. We use X-ray photon correlation spectroscopy (XPCS) to probe the dynamics of a polymer, PM7, in toluene, revealing unexpected oscillations in the autocorrelation function that show vertical flow during measurement. Despite the relatively low X-ray absorption, measured flow v…