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Several enzymes exhibit enhanced diffusion in the presence of a substrate. One explanation of this enhancement arises from fluctuating dimer models, which suggest that enzymes have a higher diffusion constant when interacting with…

Soft Condensed Matter · Physics 2024-05-14 Amit Singh Vishen , Jacques Prost , Madan Rao

Plasmonically enhanced fluorescence is a widely studied and applied phenomenon, however only a comparative theoretical and experimental analyses of coupled fluorophores and plasmonic nanoresonators makes it possible to uncover, how this…

Experimental data are reported on moisture diffusion and the elastoplastic response of an intercalated nanocomposite with vinyl ester resin matrix and montmorillonite clay filler at room temperature. Observations in diffusion tests show…

Materials Science · Physics 2015-06-24 A. D. Drozdov , J. deC. Christiansen , R. K. Gupta , A. P. Shah

We present an experimental study of energy transfer in a thermal vapor of atomic rubidium. We measure the fluorescence spectrum in the visible and near infra-red as a function of atomic density using confocal microscopy. At low density we…

The ever-growing field of microfluidics requires precise and flexible control over fluid flow at the micro- and nanoscales. Current constraints demand a variety of controllable components for performing different operations inside closed…

In this article we present a new diagnostic approach utilizing flow-cytometry to study compounds of nanoparticle samples in solution by analysis of their scattering patterns retrieved from the cytometric measurements. As a specific…

The fluorescence of organic fluorophore molecules is enhanced when they are placed in contact with certain metals (Al, Ag, Cu, Au, etc.) whose surface plasmon waves couple into the radiative modes of the molecules and increase the radiative…

Mesoscale and Nanoscale Physics · Physics 2015-04-21 S. Sarkar , B. Kanchibotla , J. D. Nelson , J. D. Edwards , J. Anderson , G. C. Tepper , S. Bandyopadhyay

Predicting and controlling the transport of colloids in porous media is essential for applications ranging from contaminant remediation to drug delivery. In these complex environments, solute gradients are ubiquitous and could drive…

Soft Condensed Matter · Physics 2026-05-27 Aditya R. Pujari , Amir A. Pahlavan

This study numerically investigates heat transfer enhancement in laminar, incompressible viscoplastic nanofluid flow through the entrance region of a circular cylinder with a uniformly heated wall, including the effects of both,…

Fluid Dynamics · Physics 2026-04-08 Deepa Madivalar , Vishwanath Kadaba Puttanna , A Kandasamy

Electrophoresis has been shown as a novel methodology to enhance heat conduction capabilities of nanocolloidal dispersions. A thoroughly designed experimental system has been envisaged to solely probe heat conduction across nanofluids by…

Applied Physics · Physics 2018-07-10 Purbarun Dhar , Lakshmi Sirisha Maganti , A R Harikrishnan , Chandan Rajput

The filling behavior of a room temperature solvent, perfluoromethylcyclohexane, in approximately 20 nm nanoporous alumina membranes was investigated in situ with small angle x-ray scattering. Adsorption in the pores was controlled…

Soft Condensed Matter · Physics 2007-05-23 K. J. Alvine , O. G. Shpyrko , P. S. Pershan , K. Shin , T. P. Russell

The permeability of certain polymer membranes with impenetrable nanoinclusions increases with the particle volume fraction (Merkel et al., Science, 296, 2002). This intriguing observation contradicts even qualitative expectations based on…

Materials Science · Physics 2007-05-23 Reghan J. Hill

Efficient water transport through nanostructure membranes is essential for advancing filtration and desalination technologies. In this study, we investigate the flow of water through molybdenum disulfide (MoS$_{2}$) nanopores of varying…

Materials Science · Physics 2025-10-14 João Victor Lemos Vale , Lucas Cesena , Bruno H. S. Mendonça , Elizane E. de Moraes

We study the contribution of advection by thermal velocity fluctuations to the effective diffusion coefficient in a mixture of two identical fluids. The steady-state diffusive flux in a finite system subject to a concentration gradient is…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 A. Donev , A. de la Fuente , J. B. Bell , A. L. Garcia

Understanding the ultrafast dynamics and transport of photoexcited carriers in topological insulators is crucial for the optical manipulation of spins and may shed light on the nature of topological excitons. Here we investigate…

Mesoscale and Nanoscale Physics · Physics 2025-02-07 Rodrigo Becerra Silva , Jay Huang , Bob Minyu Wang , Ziyi Song , Henry Clark Travaglini , Dong Yu

The existence of resonant enhanced transmission and collimation of light waves by subwavelength slits in metal films [for example, see T.W. Ebbesen et al., Nature (London) 391, 667 (1998) and H.J. Lezec et al., Science, 297, 820 (2002)]…

Optics · Physics 2013-05-29 S. V. Kukhlevsky , M. Mechler , L. Csapo , K. Janssens , O. Samek

A liquid volume containing dissolved solutes moves through a charged nanofluidic channel under the influence of the concentration gradient of the solutes, non-trivially modulated by the electrostatic interaction between ionic liquid and…

Fluid Dynamics · Physics 2023-08-31 Pranab Kumar Mondal

This work presents a performance analysis for diffusive molecular communication with mobile transmit and receive nanomachines. To begin with, the optimal test is obtained for symbol detection at the receiver nanomachine. Subsequently,…

Information Theory · Computer Science 2017-10-04 Neeraj Varshney , Aditya K. Jagannatham , Pramod K. Varshney

The convective heat transfer and flow behavior of graphene-water nanofluids are studied experimentally by focusing on transitional flow. Graphene-water nanofluids with different particle mass fractions (0.025, 0.1 and 0.2%) are produced…

Applied Physics · Physics 2020-09-23 Cayan Demirkir , Hakan Erturk

Passive and active targets, implanted with gold nanoprisms, were designed to achieve enhanced and uniform power absorption during two-sided illumination by short laser pulses. The target length was adjusted to match the short laser…