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Label-free spectromicroscopy methods offer the capability to examine complex cellular phenomena. Electron and X-ray-based spectromicroscopy methods, though powerful, have been hard to implement with hydrated objects due to the vacuum…

Exercising direct control over the unusual electronic structures arising from quantum confinement effects in graphene nanoribbons (GNRs) - atomically defined quasi one-dimensional (1D) strips of graphene - is intimately linked to geometric…

介观与纳米尺度物理 · 物理学 2023-04-18 Sai Ho Pun , Aidan Delgado , Christina Dadich , Adam Cronin , Felix R. Fischer

Graphene-based laminates, with ultralong and tortuous nanocapillaries formed by simply stacking graphene flakes together, have great promises in filtration and separation. However, the information on liquid water trans-membrane permeation…

化学物理 · 物理学 2015-02-11 Pengzhan Sun , He Liu , Kunlin Wang , Minlin Zhong , Dehai Wu , Hongwei Zhu

We demonstrate a new design of graphene liquid cell consisting of a thin lithographically patterned hexagonal boron nitride crystal encapsulated from both sides with graphene windows. The ultra-thin window liquid cells produced have…

Graphene nanoribbons with sub-nanometer widths are extremely interesting for nanoscale electronics and devices as they combine the unusual transport properties of graphene with the opening of a band gap due to quantum confinement in the…

A nano-stitching method is proposed and investigated to modify graphene bilayers. Based this method, four types of low energy carbon allotropes, "wormhole graphene" allotropoes, are obtained and their structures, stabilities and electronic…

材料科学 · 物理学 2015-05-18 Chaoyu He , JinLi , Jianxin Zhong

Dielectrophoretic (DEP) sensing is an extremely important sensing modality that enables the rapid capture and detection of polarizable particles of nano-scale size. This makes it a versatile tool for applications in medical diagnostics,…

介观与纳米尺度物理 · 物理学 2025-11-26 Nezhueyotl Izquierdo , Ruixue Li , Peter R. Christenson , Sang-Hyun Oh , Steven J. Koester

There has been an increasing interest in atom probe tomography (APT) to characterise hydrated and biological materials. A major benefit of APT compared to microscopy techniques more commonly used in biology is its combination of outstanding…

应用物理 · 物理学 2023-11-13 Florant Exertier , Levi Tegg , Adam Taylor , Julie M. Cairney , Jing Fu , Ross K. W. Marceau

Various properties of water are affected by confinement as the space-filling of the water molecules is very different from bulk water. In our study, we challenged the creation of a stable system in which water molecules are permanently…

介观与纳米尺度物理 · 物理学 2026-04-28 Tim Verhagen , Jiri Klimes , Barbara Pacakova , Martin Kalbac , Jana Vejpravova

The synthesis, physical, photocatalytic, and antibacterial properties of MgO and graphene nanoplatelets (GNPs) nanocomposites are reported. The crystallinity, phase, morphology, chemical bonding, and vibrational modes of prepared…

材料科学 · 物理学 2017-01-13 Aqsa Arshad , Javed Iqbal , M. Siddiq , Qaisar Mansoor , M. Ismail , Faisal Mehmood , M. Ajmal , Zubia Abid

Knowledge of the topology of the electronic ground state of materials has led to deep insights to novel phenomena such as the integer quantum Hall effect and fermion-number fractionalization, as well as other properties of matter. Joining…

介观与纳米尺度物理 · 物理学 2017-08-18 Ting Cao , Fangzhou Zhao , Steven G. Louie

Nano-rippled graphene, a structurally modified graphene, presents a novel material with a large range of possible applications including sensors, electrodes, coatings, optoelectronics, spintronics and straintronics. In this work we have…

介观与纳米尺度物理 · 物理学 2015-11-20 Iva Šrut Rakić , Davor Čapeta , Milivoj Plodinec , Marko Kralj

Understanding the phase behaviors of nanoconfined water has driven notable research interests recently. In this work, we examine the structures and thermodynamics of water encapsulated under a graphene cover. We find layered water…

统计力学 · 物理学 2016-07-19 Shuping Jiao , Chuanhua Duan , Zhiping Xu

An analytical device model for a graphene nanoribbon phototransistor (GNR-PT) is presented. GNR-PT is based on an array of graphene nanoribbons with the side source and drain contacts, which is sandwiched between the highly conducting…

介观与纳米尺度物理 · 物理学 2015-05-13 Victor Ryzhii , Vladimir Mitin , Maxim Ryzhii , Nadezhda Ryabova , Taiichi Otsuji

A significant advance toward achieving practical applications of graphene as a two-dimensional material in nanoelectronics would be provided by successful synthesis of both n-type and p-type doped graphene. However reliable doping and a…

Graphene holds great potential for superconductivity due to its pure two-dimensional nature, the ability to tune its carrier density through electrostatic gating, and its unique, relativistic-like electronic properties. At present, we are…

Growing graphene nanoribbons from small organic molecules encapsulated in carbon nanotubes can result in products with uniform width and chirality. We propose a method based on encapsulation of 1,2,4-trichlorobenzene from the liquid phase…

We propose a new class of semiconducting graphene-based nanostructures: hydrogenated graphene nanoripples (HGNRs), based on continuum-mechanics analysis and first principles calculations. They are formed via a two-step combinatorial…

介观与纳米尺度物理 · 物理学 2015-05-20 Z. F. Wang , Yu Zhang , Feng Liu

Graphene-induced energy transfer (GIET) is a recently developed fluorescence-spectroscopic technique that achieves sub-nanometric optical localization of fluorophores along the optical axis of a microscope. GIET is based on the near-field…

光学 · 物理学 2022-11-08 Tao Chen , Arindam Ghosh , Jörg Enderlein

Nanoparticles (NPs) are promising therapeutic delivery agents, yet it is increasingly apparent that the number and manner of presentation of cell binding ligands on the NP can affect the eventual fate of the therapeutic. Whenever NPs are…

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