Results 11 to 20 of about 39,355 (307)

Editorial for the Special Issue Entitled “Carbon-Based Quantum Dots”

open access: yesNanomaterials, 2023
Carbon-based quantum dots, also known as carbon dots (CDs), are a unique class of carbon-based nanoparticles with sizes below 10 nm [...]
Su Chen
doaj   +2 more sources

Fluorescent Quantum Dots and Its Composites for Highly Sensitive Detection of Heavy Metal Ions and Pesticide Residues: A Review

open access: yesChemosensors, 2023
Quantum dots nanomaterials have attracted extensive interest for fluorescence chemical sensors due their attributes, such as excellent optical characteristics, quantum size effects, interface effects, etc. Moreover, the fluorescence properties of quantum
Zhezhe Wang   +4 more
doaj   +1 more source

Multiwall Carbon Nanotubes as Quantum Dots [PDF]

open access: yesPhysical Review Letters, 2002
We have measured the differential conductance dI/dV of individual multi-wall carbon nanotubes (MWNT) of different lengths. A cross-over from wire-like (long tubes) to dot-like (short tubes) behavior is observed. dI/dV is dominated by random conductance fluctuations (UCF) in long MWNT devices (L=2...7 $μm$), while Coulomb blockade and energy level ...
Buitelaar, MR   +4 more
openaire   +5 more sources

Synergy between “Probiotic” Carbon Quantum Dots and Ciprofloxacin in Eradicating Infectious Biofilms and Their Biosafety in Mice

open access: yesPharmaceutics, 2021
Orally administrated probiotic bacteria can aid antibiotic treatment of intestinal infections, but their arrival at their intestinal target site is hampered by killing in the gastrointestinal tract and by antibiotics solely intended for pathogen killing.
Yanyan Wu   +5 more
doaj   +1 more source

Carbon quantum dots as a tracer of water seepage sources and pathways in grottoes

open access: yesHeritage Science, 2023
Water seepage is one of the main factors leading to the damage of grottoes. The sources and pathways of water seepage need to be identified to relieve it.
Bo Sun   +4 more
doaj   +1 more source

Modern advances in obtaining of carbon quantum dots, characterizing their properties and biomedical application: a review

open access: yesВестник. Серия физическая, 2021
Carbon quantum dots have attracted great interest in recent years due to their unique physical and chemical properties. The certain property that distinguishes carbon quantum dots from other priority nanomaterials is their visible photoluminescence at ...
N. Zhylkybayeva   +5 more
doaj   +1 more source

Double quantum dots in carbon nanotubes [PDF]

open access: yesPhysical Review B, 2010
We study the two-electron eigenspectrum of a carbon-nanotube double quantum dot with spin-orbit coupling. Exact calculation are combined with a simple model to provide an intuitive and accurate description of single-particle and interaction effects. For symmetric dots and weak magnetic fields, the two-electron ground state is antisymmetric in the spin ...
von Stecher, Javier   +4 more
openaire   +4 more sources

Recent advances of biomass carbon dots on syntheses, characterization, luminescence mechanism, and sensing applications

open access: yesNano Select, 2021
Carbon dots have attracted much attention due to their high fluorescence intensity, easy modification, good stability, and biocompatibility. However, the realization of low‐cost mass production of high‐quality carbon dots still faces great challenges ...
Ying Lou   +8 more
doaj   +1 more source

Carbon Dots and Graphene Quantum Dots in Electrochemical Biosensing [PDF]

open access: yesNanomaterials, 2019
Graphene quantum dots (GQDs) and carbon dots (CDs) are among the latest research frontiers in carbon-based nanomaterials. They provide interesting attributes to current electrochemical biosensing due to their intrinsic low toxicity, high solubility in many solvents, excellent electronic properties, robust chemical inertness, large specific surface area,
Susana Campuzano   +2 more
openaire   +5 more sources

Investigation of carbon nanotube quantum dots connected to ferromagnetic leads [PDF]

open access: yes, 2015
The implementation of ferromagnetic contacts in complex nanoelectronic devices, e.g. in spin-valves bears great potential for applications and fundamental investigations. Spin-valves are structures with two magnetic contacts and a non-magnetic medium (
Samm, Julia
core   +1 more source

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