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Bipolar nanochannels comprising two domains of positively and negatively charged walls along the pore axis are known to rectify current when exposed to an electric potential bias. We find that addition of charged nanoparticles can increase…

Polymer translocation is a promising strategy for the next-generation DNA sequencing technologies. The use of biological and synthetic nano-pores, however, still suffers from serious drawbacks. In particular, the width of the membrane layer…

Soft Condensed Matter · Physics 2017-11-30 Timothee Menais , Stefano Mossa , Arnaud Buhot

Nanopore-based sensing platforms have transformed single-molecule detection and analysis. The foundation of nanopore translocation experiments lies in conductance measurements, yet existing models, which are largely phenomenological, are…

Biological Physics · Physics 2023-12-19 Arjav Shah , Shakul Pathak , Slaven Garaj , Martin Z. Bazant , Ankur Gupta , Patrick S. Doyle

Molecular dynamics simulations are used to study the equilibrium distribution of monovalent ions in a nanopore connecting two water reservoirs separated by a membrane, both for the empty pore and that with a single stranded DNA molecule…

Soft Condensed Matter · Physics 2009-11-10 Yitzhak Rabin , Motohiko Tanaka

We present a tight-binding model study of a two-terminal graphene nanopore device for sequential determination of DNA bases. Using Green's function technique we investigate the changes in electronic transport properties of the device due to…

Mesoscale and Nanoscale Physics · Physics 2022-06-20 Sourav Kundu , S. N. Karmakar

It is shown that surface conduction can stabilize electrodeposition in random, charged porous media at high rates, above the diffusion-limited current. After linear sweep voltammetry and impedance spectroscopy, copper electrodeposits are…

Chemical Physics · Physics 2016-03-24 Ji-Hyung Han , Miao Wang , Peng Bai , Fikile R. Brushett , Martin Z. Bazant

We present an unique way to detect basepair mismatches in DNA leading to different epigenetic disorder by the method of nanopore sequencing. Based on a tight-binding formulation of graphene nanopore based device, using Greens function…

Mesoscale and Nanoscale Physics · Physics 2016-02-26 Sourav Kundu , S. N. Karmakar

Solid electrolytes (SEs) for sodium-based superionic conductors (NaSICON) are widely recognized for their excellent ionic conductivity and application in sodium based energy storage systems. While considerable effort has been made to…

Conformal Atomic Layer Deposition (ALD) of nanoparticles is an now an established nanofabrication concept employed by many researchers for applications such as creating diffusion barriers, tuning catalysis, or masking a toxic particle core…

Materials Science · Physics 2016-11-28 Ryan P Badman , Xinwei Wu , Vincent J Genova

Microstructural evolution of NMC secondary particles during the battery operation drives the electrochemical performance and impacts the Li-ion battery lifetime. In this work, we develop an in situ methodology using the FIB/SEM instrument…

Ionic Current Rectification (ICR) can appear in nanopores, causing a diode-like behavior that originates from different efficiency of ion transport through the pore channel with respect to the applied voltage bias polarity. This effect is…

In the past couple of decades, colloidal inorganic nanocrystals and, more specifically, semiconductor quantum dots have emerged as crucial materials for the development of nanoscience and nanotechnology, with applications in very diverse…

Chemical Physics · Physics 2018-01-08 Francisco Palazon , Mirko Prato , Liberato Manna

We use large scale ab-initio calculations to describe electronic structures of graphene, graphene nanoribbons, and carbon nanotubes periodically perforated with nanopores. We disclose common features of these systems and develop a unified…

Mesoscale and Nanoscale Physics · Physics 2011-07-25 Artem Baskin , Petr Kral

In recent years, extracellular vesicles such have become promising carriers as the next-generation drug delivery platforms. Effective loading of exogenous cargos without compromising the extracellular vesicle membrane is a major challenge.…

Biomolecules · Quantitative Biology 2023-04-14 Khayrul Islam , Meghdad Razizadeh , Yaling Liu

The discrete and charge-separated nature of matter - electrons and nuclei - results in local electrostatic fields that are ubiquitous in nanoscale structures and are determined by their shape, material, and environment. Such fields are…

Surfaces formed by extracellular polymeric substances enclosing individual and some small communities of {\it Acidithiobacillus ferrooxidans} on plates of hydrophobic silicon and hydrophilic mica are analyzed by means of atomic force…

Biological Physics · Physics 2007-05-23 Alberto Saa , Omar Teschke

The development of supercapacitors is impeded by the unclear relationships between nanoporous electrode structures and electrochemical performance, primarily due to challenges in decoupling the complex interdependencies of various…

Materials Science · Physics 2025-01-17 Zhenxiang Wang , Taizheng Wu , Liang Zeng , Jiaxing Peng , Ding Yu , Ming Gao , Guang Feng

In this thesis, we propose to tackle this important issue by designing and realizing a novel nano-optical device based on the use of a photonic crystal (PC) structure to generate an efficient coupling between the external source and a NA.…

Optics · Physics 2023-05-25 Taiping Zhang

In this manuscript, we outline a reliable procedure to manufacture photonic nanostructures from single-crystal diamond (SCD). Photonic nanostructures, in our case SCD nanopillars on thin (< 1$\mu$m) platforms, are highly relevant for…

Materials Science · Physics 2019-10-25 Mariusz Radtke , Richard Nelz , Abdallah Slablab , Elke Neu

With the importance of Li-ion and emerging alternative batteries to our electric future, predicting new sustainable materials, electrolytes and complete cells that safely provide high performance, long life, energy dense capability is…

Materials Science · Physics 2022-07-26 Alex Grant , Colm O'Dwyer