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Articles by Ran Ni
Condensed Matter > Soft Condensed Matter
[Submitted on 3 Nov 2026 (v1), last revised 4 Nov 2026 (this version, v2)] View PDF HTML (experimental) Subjects: Soft Condensed Matter (cond-mat.soft) Cite as: arXiv:2611.05085 [cond-mat.soft] (or arXiv:2611.05085v2 [cond-mat.soft] for this version) https://doi.org/10.48550/arXiv.2611.05085
Condensed Matter > Soft Condensed Matter
Center-of-mass (COM) conservation has been widely accepted as an important mechanism for generating nonequilibrium dynamic hyperuniform states with vanishing long-wavelength density fluctuations, but whether it is sufficient for hyperuniformity remains unclear. Here, using particle simulations and a linear fluctuating theory, we show that spatiotemporally correlated activity regulation can destroy hyperuniformity while preserving COM conservation.
Entropy-Driven Physical Amplification in Multivalent Biosensing
1 Introduction Sensitive detection of biomarkers and pathogens requires achieving low detection limits at physiologically relevant analyte concentrations. In amplification-based platforms such as PCR, extraordinary sensitivity is obtained through exponential molecular replication [1, 2]. In contrast, amplification-free biosensing systems must rely directly on binding thermodynamics and collective molecular interactions to generate detectable signals [3, 4].
Quantitative evaluation of methods to analyze motion changes in single-particle experiments - Nature Communications
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Abstract The analysis of live-cell single-molecule imaging experiments can reveal valuable information about the heterogeneity of transport processes and interactions between cell components. These characteristics are seen as motion changes in the particle trajectories. Despite the existence of multiple approaches to carry out this type of analysis, no objective assessment of these methods has been performed so far.
By Gorka Muñoz-Gil, Harshith Bachimanchi, Jesús Pineda, Gabriel Fernández-Fernández, Borja Requena, Yusef Ahsini, Francisco Barrantes, Clément Cabriel, J. Alberto Conejero, Xiaochen Feng, Nikos S. Hatzakis, Zihan Huang, Ignacio Izeddin, Hawoong Jeong, Ran Ni, Junwoo Park, Xiang Qu, Yongbing Zhang, Giorgio Volpe, Maciej Lewenstein, Ralf Metzler, Diego Krapf, Giovanni Volpe
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Nature
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Glass Transition in Monolayers of Rough Colloidal Ellipsoids
Structure-dynamics correlation is one of the major ongoing debates in the glass transition, although a number of structural features have been found connected to the dynamic heterogeneity in different glass-forming colloidal systems. Here, using colloidal experiments combined with coarse-grained molecular dynamics simulations, we investigate the glass transition in monolayers of rough colloidal ellipsoids.
Accurate prediction of the lymph node status in ampullary duodenal carcinoma: potential guidance for clinical management - BMC Cancer
A total of 4077 patients diagnosed with a-DC between 2004 and 2020 were included in this study based on the SEER database screening flowchart. The external validation cohort comprised 173 patients who underwent radical pancreaticoduodenectomy for a-DC at Zhejiang Provincial People’s Hospital between 2010 and 2020. In the training cohort, there were 2298 men and 1779 women, with an average age of 65.9 years.
Obstacle-enhanced spontaneous oscillation of confined active granules
Obstacle-enhanced spontaneous oscillation of confined active granules Spontaneous oscillation in particle numbers has been reported recently, in which two chambers connected by a narrow channel are alternately filled and emptied by self-propelled particles. The challenge in realizing the application of this oscillation lies in a promotion of the oscillatory periodicity.
Janus particles with tunable patch symmetry and their assembly into chiral colloidal clusters - Nature Communications
Abstract Janus particles, which have an attractive patch on the otherwise repulsive surface, have been commonly employed for anisotropic colloidal assembly. While current methods of particle synthesis allow for control over the patch size, they are generally limited to producing dome-shaped patches with a high symmetry (C∞). Here, we report on the synthesis of Janus particles with patches of various tunable shapes, having reduced symmetries ranging from C2v to C3v and C4v.
Interplay between jamming and motility-induced phase separation in persistent self-propelling particles
COVID-19 has impacted many institutions and organizations around the world, disrupting the progress of research. Through this difficult time APS and the Physical Review editorial office are fully equipped and actively working to support researchers by continuing to carry out all editorial and peer-review functions and publish research in the journals as well as minimizing disruption to journal access.
Translational and rotational critical-like behaviors in the glass transition of colloidal ellipsoid monolayers
Abstract Critical-like behaviors have been found in translational degrees of freedom near the glass transition of spherical particle systems mainly with local polycrystalline structures, but it is not clear if criticality exists in more general glassy systems composed of nonspherical particles without crystalline structures.
Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations
Abstract Disordered hyperuniform structures are an exotic state of matter having vanishing long-wavelength density fluctuations similar to perfect crystals but without long-range order. Although its importance in materials science has been brought to the fore in past decades, the rational design of experimentally realizable disordered strongly hyperuniform microstructures remains challenging.
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