Results 121 to 130 of about 301,103 (302)

SU(4) and SU(2) Kondo Effects in Carbon Nanotube Quantum Dots

, 2007
We study the SU(4) Kondo effect in carbon nanotube quantum dots, where doubly degenerate orbitals form 4-electron ``shells''. The SU(4) Kondo behavior is investigated for one, two and three electrons in the topmost shell.
A. C. Hewson, A. Makarovski, A. Zhukov, D. V. Averin, G. Finkelstein, J. Liu, J. Schmid, L. P. Kouwenhoven, L. P. Kouwenhoven   +8 more
core   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Copper and nickel doped carbon dots for rapid and sensitive fluorescent turn-off detection of bilirubin

Scientific Reports
Carbon dots doped with metals and non-metals have gained much popularity due to the enhancement in their optical and electronic properties. In this study, polyethyleneimine-functionalized transition metal (nickel or copper) doped carbon dots (CD, NiCD ...
A. Lakshmi Devi, M. Sreelakshmi, P. V. Suneesh, T. G. Satheesh Babu   +3 more
doaj   +1 more source

Formation of a gold-carbon dot nanocomposite with superior catalytic ability for the reduction of aromatic nitro groups in water [PDF]

, 2014
We report the synthesis of a gold-carbon dot nanocomposite and its utility as a recyclable catalyst for the reduction of aromatic nitro groups.
Bera, Abhijit, Bhattacharyya, Swarup Krishna, Das, Mithun, Dwivedi, Jaya, Ganguly, Debabrata, Ghosal, Krishanu, Gupta, Bipin Kumar, Gupta, R. K., Kumar, Pawan, Maiti, Subhabrata, Mart, Angel A., Mondal, Pritiranjan   +11 more
core  

Defining and controlling double quantum dots in single-walled carbon nanotubes

, 2006
We report the experimental realization of double quantum dots in single-walled carbon nanotubes. The device consists of a nanotube with source and drain contact, and three additional top-gate electrodes in between.
C Schönenberger, Furer J, Gräber M R Coish W A Hoffmann C Weiss M Furer J Oberholzer S Loss D Schönenberger C, Kastner M, Kouwenhoven L P Marcus C M McEuen P L Tarucha S Westervelt R M Wingreen N S Sohn L L Kouwenhoven L P Schön G, Loss D, M R Gräber, M Weiss, Sapmaz S Meyer C Beliczynski P Jarillo-Herrero P Kouwenhoven L P   +8 more
core   +2 more sources

Carbon Dots as Bioactive Antifungal Nanomaterials

ChemMedChem
AbstractNowadays, the widespread diffusion of infections caused by opportunistic fungi represents a demanding threat for global health security. This phenomenon has also worsened by the emergence of contagious events in hospitalisation environments and by the fact that many fungi have developed harsh and serious resistance mechanisms to the traditional
Elisa Sturabotti, Alessandro Camilli, Francesca Leonelli, Fabrizio Vetica   +3 more
openaire   +3 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Synthesis and Characterization of Polycaprolactone Scaffolds Containing Carbon Quantum Dots Nanoparticles for Tissue Engineering Applications [PDF]

Journal of Ardabil University of Medical Sciences
Background: Tissue engineering, by designing biological scaffolds and imitating the extracellular environment, helps the growth and proliferation of cells and plays a key role in replacing and repairing damaged tissues.
Faranak Hasanpour, Saber Zahri, Arash Abdolmaleki, Asadolah Asadi   +3 more
doaj  

Detection of ferric ions by nitrogen and sulfur co-doped potato-derived carbon quantum dots as a fluorescent probe

Materials Research Express
This paper reports the detection of ferric ions (Fe ^3+ ) based on nitrogen and sulfur co-doped carbon quantum dots. These nitrogen and sulfur co-doped carbon quantum dots were synthesized via a hydrothermal route using northern Shaanxi potatoes as ...
Miao Mu, Zhenzhen Duan, Shanshan Fan, Wei Zhao, Wenwen Gao, Rui Bai, Yanjun Li, Yuhong Kang   +7 more
doaj   +1 more source

Non-Fermi liquid behavior in transport across carbon nanotube quantum dots

, 2006
A low energy-theory for non-linear transport in finite-size single-wall carbon nanotubes, based on a microscopic model for the interacting pz electrons and successive bosonization, is presented.
Grifoni, Milena, Mayrhofer, Leonhard
core   +1 more source