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Quantum confinement significantly influences the excited states of sub-10 nm single-walled carbon nanotubes (SWCNTs), crucial for advancements in transistor technology and the development of novel opto-electronic materials such as…

Mesoscale and Nanoscale Physics · Physics 2024-10-30 Benjamin Eller , Charles W. Clark , YuHuang Wang

Based on our formulation of the DNA electrophoresis near a pore [P. Rowghanian and A. Y. Grosberg, Phys. Rev. E 87, 042723 (2013)], we address the electrophoretic DNA capture into a nanopore as a steady-state process of particle absorption…

Biological Physics · Physics 2013-06-20 Payam Rowghanian , Alexander Y. Grosberg

Recently we investigated from first principles screening properties in systems where small molecules, characterized by a finite electronic dipole moment, are encapsulated into different nanocages. The most relevant result was the…

Chemical Physics · Physics 2024-05-30 Pier Luigi Silvestrelli , Matteo Tessarolo , Abdolvahab Seif , Alberto Ambrosetti

We use a nanofluidic system to investigate the emergence of thermally driven collective phenomena along a single polymer chain. In our approach, a single DNA molecule is confined in a nanofluidic slit etched with arrays of embedded…

Soft Condensed Matter · Physics 2016-10-26 Alexander R. Klotz , Hendrick W. de Haan , Walter W. Reisner

Monte Carlo simulations are used to study the conformational properties of a folded semiflexible polymer confined to a long channel. We measure the variation in the conformational free energy with respect to the end-to-end distance of the…

Soft Condensed Matter · Physics 2018-09-05 James M. Polson

A purely electrical sensing scheme is presented that determines the concentration of macromolecules in solution by measuring the capacitance between planar microelectrodes. Concentrations of DNA in the ng/mL range have been used in samples…

Biological Physics · Physics 2009-01-20 Anja Henning , Joerg Henkel , Frank F Bier , Ralph Hoelzel

We address small volume-fraction asymptotic properties of a nonlocal isoperimetric functional with a confinement term, derived as the sharp interface limit of a variational model for self-assembly of diblock copolymers under confinement by…

Analysis of PDEs · Mathematics 2018-10-25 Stan Alama , Lia Bronsard , Rustum Choksi , Ihsan Topaloglu

This paper devotes to formulating several multiscale models to study the effect of pH-dependent ionic inhomogeneity on the electrical potential distributions and the graded elastic properties of a nanoscale DNA film and the related bending…

Applied Physics · Physics 2017-06-27 Neng-Hui Zhang , Wei-Lie Meng , Cheng-Yin Zhang , Jun-Zheng Wu

The excluded volume effects of randomly branched polymers are investigated. To approach this problem we assume the Gaussian distribution of segments around the center of gravity. Once this approximation is introduced, we can make use of the…

Soft Condensed Matter · Physics 2017-09-27 Kazumi Suematsu

We report a comprehensive study of the energy response to low-energy recoils in dual-phase xenon-based dark matter experiments. A recombination model is developed to explain the recombination probability as a function of recoil energy at…

Instrumentation and Detectors · Physics 2017-04-26 L. Wang , D. -M. Mei

Zero mode waveguide technology of next generation sequencing demonstrated sequence-dependence of the enzymatic reaction, incorporating a base into the genomic DNA. We show that these experimental results indicate existence of a previously…

Other Quantitative Biology · Quantitative Biology 2012-06-12 Petr Pancoska , Zdenek Moravek , Uday Kiran Para , Jaroslav Nesetril

Foundation models in genomics have shown mixed success compared to their counterparts in natural language processing. Yet, the reasons for their limited effectiveness remain poorly understood. In this work, we investigate the role of…

Machine Learning · Computer Science 2026-04-07 Maxime Rochkoulets , Lovro Vrček , Mile Šikić

DNA is now firmly established as a versatile and robust platform for achieving synthetic nanostructures. While the folding of single molecules into complex structures is routinely achieved through engineering basepair sequences, much less…

Soft Condensed Matter · Physics 2025-05-15 Soumen De Karmakar , Thomas Speck

We analyze electromagnetic modes in multi-layered nano-composites and demonstrate that the response of a majority of realistic layered structures is strongly affected by the non-local effects originating from strong field oscillations…

How the geometry of nano-sized confinement affects dynamics of biomaterials is interesting yet poorly understood. An elucidation of structural details upon nano-sized confinement may benefit manufacturing pharmaceuticals in biomaterial…

Biological Physics · Physics 2015-05-13 Shao-Qing Zhang , Margaret S. Cheung

We derive the single molecule equation of state (force-extension relation) for DNA molecules bearing sliding loops and deflection defects. Analytical results are obtained in the large force limit by employing an analogy with instantons in…

Soft Condensed Matter · Physics 2009-11-11 Igor M. Kulic , H. Mohrbach , V. Lobaskin , R. Thaokar , H. Schiessel

We studied the electrical conductivity of DNA molecules with conducting atomic force microscopy as a function of the chemical nature of the substrate surfaces, the nature of the electrical contact, and the number of DNA molecules (from a…

Materials Science · Physics 2009-11-10 Thomas Heim , Dominique Deresmes , Dominique Vuillaume

Novel approaches to DNA sequencing and detection require the measurement of electrical currents between metal probes immersed in ionic solution. Here, we experimentally demonstrate that these systems maintain large background currents with…

The goal of this note is to show that the analysis of the minimum output p-Renyi entropy of a typical quantum channel essentially amounts to applying Milman's version of Dvoretzky's Theorem about almost Euclidean sections of…

Quantum Physics · Physics 2010-02-07 Guillaume Aubrun , Stanislaw Szarek , Elisabeth Werner

Conformational change of a DNA molecule is frequently observed in multiple biological processes and has been modelled using a chain of strongly coupled oscillators with a nonlinear bistable potential. While the mechanism and properties of…

Biological Physics · Physics 2020-08-07 Soumyadip Banerjee , Kushal Shah , Shaunak Sen