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Investigating the cellular internalization pathways of single molecules or single nano-objects is important to understanding cell-matter interactions and to applications in drug delivery and discovery. Imaging and tracking the motion of…

Biological Physics · Physics 2015-06-04 Guosong Hong , Justin Z. Wu , Joshua T. Robinson , Hailiang Wang , Bo Zhang , Hongjie Dai

Localized particle-like spin textures have been found to exhibit emergent electromagnetic properties, which hold promise for the development of intriguing spintronic devices. Among these textures, magnetic bubbles represent localized spin…

We report on electrical resistance measurements of an individual carbon nanotube down to a temperature T=20 mK. The conductance exhibits a ln T dependence and saturates at low temperature. A magnetic field applied perpendicular to the tube…

Low-dimensional metallic transport is at the heart of modern high-performance transistors. While the best devices are currently based on III-V heterojunction quantum-well channels, we demonstrate that much greater performance gains reside…

Materials Science · Physics 2007-05-23 F. Green , D. Neilson

For single particle electron cryo-microscopy (cryoEM), contrast loss due to beam-induced charging and specimen movement is a serious problem, as the thin films of vitreous ice spanning the holes of a holey carbon film are particularly…

Biological Physics · Physics 2011-10-07 Daniel Rhinow , Nils-Eike Weber , Andrey Turchanin , Armin Gölzhäuser , Werner Kühlbrandt

We show that packed, horizontally aligned films of single-walled carbon nanotubes are hyperbolic metamaterials with ultra-subwavelength unit cells and dynamic tunability. Using Mueller-matrix ellipsometry, we characterize the films'…

We study a general model describing a self-detecting single electron transistor realized by a suspended carbon nanotube actuated by a nearby antenna. The main features of the device, recently observed in a number of experiments, are…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 A. Nocera , C. A. Perroni , V. Marigliano Ramaglia , V. Cataudella

Metal nanoantennas enable the manipulation of light emission and detection at the single photon level by confining light into very small volumes. Emitters coupled to these plasmonic structures are thus ideal candidates for usage in quantum…

Optics · Physics 2020-08-11 Nathan Kimmitt , Esther A. Wertz

We report on an electrical detection method of ultrasensitive carbon nanotube mechanical resonators. The noise floor of the detection method is reduced using a RLC resonator and an amplifier based on a high electron mobility transistor…

Mesoscale and Nanoscale Physics · Physics 2018-09-14 Jil Schwender , Ioannis Tsioutsios , Alexandros Tavernarakis , Quan Dong , Yong Jin , Urs Staufer , Adrian Bachtold

A highly sensitive optical capillary electrophoresis measurement method based on a nanofluidic optical fiber platform is presented. By using scaling arguments and considering realistic instrument limitations, I underline the feasibility of…

Soft Condensed Matter · Physics 2016-01-07 Sanli Faez

We investigate the effects of magnetic and electric fields on electron wavefunction interactions in single walled carbon nanotube bundles. The magnetoresistance measurements performed at 4.2K and the dependence of the data upon the electric…

Mesoscale and Nanoscale Physics · Physics 2010-09-15 M. Salvato , M. Lucci , I. Ottaviani , M. Cirillo , S. Orlanducci , F. Toschi , M. L. Terranova

We report the controlled integration, via Dip Pen Nanolithography, of monolayer dots of ferritin-based CoO nanoparticles (12 Bohr magnetons) into the most sensitive areas of a microSQUID sensor. The nearly optimum flux coupling between…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 M. J. Martínez-Pérez , E. Bellido , R. de Miguel , J. Sesé , A. Lostao , C. Gómez-Moreno , D. Drung , T. Schurig , D. Ruiz-Molina , F. Luis

Non-trivial topology of phase is crucial for many important physics phenomena such as, for example, the Aharonov-Bohm effect 1 and the Berry phase 2. Light phase allows one to create "twisted" photons 3, 4 , vortex knots 5, dislocations 6…

We study transport properties of a single electron transistor based on elastic nanotube. Assuming that an external compressive force is applied to the nanotube, we focus on the vicinity of the Euler buckling instability. We demonstrate that…

Mesoscale and Nanoscale Physics · Physics 2022-02-15 S. S. Evseev , I. S. Burmistrov , K. S. Tikhonov , V. Yu. Kachorovskii

Scalable atom-based quantum platforms for simulation, computing, and metrology require fast high-fidelity, low-loss imaging of individual atoms. Standard fluorescence detection methods rely on continuous cooling, limiting the detection…

Single-molecule sensing is at the core of modern biophysics and nanoscale science, from revolutionizing healthcare through rapid, low-cost sequencing to understanding various physical, chemical, and biological processes at their most basic…

Mesoscale and Nanoscale Physics · Physics 2018-04-10 Daniel Gruss , Alex Smolyanitsky , Michael Zwolak

We report on the fabrication and characterization of all-carbon hybrid quantum devices based on graphene and single-walled carbon nanotubes. We discuss both, carbon nanotube quantum dot devices with graphene charge detectors and nanotube…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 S. Engels , P. Weber , B. Terrés , J. Dauber , C. Meyer , C. Volk , S. Trellenkamp , U. Wichmann , C. Stampfer

The transport of motile entities across modulated energy landscapes plays an important role in a range of phenomena in biology, colloidal science and solid-state physics. Here, an easily implementable strategy that allows for the collective…

Soft Condensed Matter · Physics 2020-03-11 Fernando Martínez-Pedrero , Francisco Ortega , Ramón G. Rubio , Carles Calero

Devices formed from single molecules attached to noble-metal electrodes exhibit large conductance fluctuations, which inhibit their development as reproducible functional units. We demonstrate that single molecules with planar anchor groups…

Mesoscale and Nanoscale Physics · Physics 2014-05-15 Csaba G. Péterfalvi , Colin J. Lambert

Single molecule detection has revolutionised the fields of chemistry and biology by offering powerful ways to study individual molecules under different scenarios. Nanophotonic structures, including plasmonic antennas, significantly…

Biological Physics · Physics 2022-01-31 Pamina M. Winkler , Thomas S. van Zanten , Satyajit Mayor , Maria F. Garcia-Parajo