Results 31 to 40 of about 111,252 (299)

Current and Shot Noise Measurements in a Carbon Nanotube-Based Spin Diode [PDF]

open access: yes, 2008
Low-temperature measurements of asymmetric carbon nanotube (CNT) quantum dots are reported. The CNTs are end-contacted with one ferromagnetic and one normal-metal electrode.
Christopher A. Merchant   +3 more
core   +2 more sources

Electronic transport properties of double-wall carbon nanotubes [PDF]

open access: yes, 2011
We studied the discretized electronic spectra of double-wall carbon nanotube (DWCNT) quantum dots (QDs) in the Coulomb-blockade regime. At low temperatures, the stability diagrams show a clear and regular eight-electron periodicity, which is due to the ...
Datta, Subhadeep   +6 more
core   +4 more sources

New Immunosensing-Fluorescence Detection of Tumor Marker Cytokeratin-19 Fragment (CYFRA 21-1) Via Carbon Quantum Dots/Zinc Oxide Nanocomposite

open access: yesNanoscale Research Letters, 2020
The rapid detection of lung cancer in early stages using the antigen cytokeratin-19 fragment (CYFRA 21-1) as a tumor marker in human serum plays an important role in the survival of patients and taking a fast surgical reaction. This study aimed to employ
Nawal Ahmed Alarfaj   +2 more
doaj   +1 more source

Single wall carbon nanotube double quantum dot

open access: yes, 2006
We report on two top-gate defined, coupled quantum dots in a semiconducting single wall carbon nanotube, constituting a tunable double quantum dot system.
Grove-Rasmussen, K.   +3 more
core   +1 more source

Electronic Transport Spectroscopy of Carbon Nanotubes in a Magnetic Field [PDF]

open access: yes, 2004
We report magnetic field spectroscopy measurements in carbon nanotube quantum dots exhibiting four-fold shell structure in the energy level spectrum. The magnetic field induces a large splitting between the two orbital states of each shell, demonstrating
C. Dekker   +9 more
core   +1 more source

Mapping electron delocalization by charge transport spectroscopy in an artificial molecule

open access: yes, 2007
In this letter we present an experimental realization of the quantum mechanics textbook example of two interacting electronic quantum states that hybridize forming a molecular state.
Blick   +15 more
core   +1 more source

Quantum dots visibly forge carbon bonds [PDF]

open access: yesScience, 2017
Organic Chemistry Chemists are late to the game that plants play of using visible light to make carbon-carbon bonds. Nonetheless, they have made up for lost time over the past decade, applying light activation of precious iridium and ruthenium catalysts to a wide variety of molecular transformations. Zhang et al. and Caputo et al.
openaire   +2 more sources

Synthesis and physicochemical characterization of carbon quantum dots produced from folic acid

open access: yesScientific Reports, 2023
The rising interest in carbon dots (c-dots) is driven by their remarkable potential in the field of biomedical applications. This is due to their distinctive and adjustable photoluminescence characteristics, outstanding physicochemical properties ...
Walaa Fawaz   +2 more
doaj   +1 more source

Correlation effects and spin dependent transport in carbon nanostructures

open access: yes, 2013
The impact of symmetry breaking perturbations on the spin dependent transport through carbon nanotube quantum dots in the Kondo regime is discussed.Comment: 10 pages, 6 ...
Krychowski, D., Lipinski, S.
core   +1 more source

Carbon Quantum Dots for Zebrafish Fluorescence Imaging [PDF]

open access: yesScientific Reports, 2015
AbstractCarbon quantum dots (C-QDs) are becoming a desirable alternative to metal-based QDs and dye probes owing to their high biocompatibility, low toxicity, ease of preparation and unique photophysical properties. Herein, we describe fluorescence bioimaging of zebrafish using C-QDs as probe in terms of the preparation of C-QDs, zebrafish husbandry ...
Kang, Yan-Fei   +5 more
openaire   +2 more sources

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