Results 1 to 10 of about 24,885 (302)

Aptamer-functionalized graphene quantum dots combined with artificial intelligence detect bacteria for urinary tract infections [PDF]

open access: yesFrontiers in Cellular and Infection Microbiology
ObjectivesUrinary tract infection is one of the most prevalent forms of bacterial infection, and prompt and efficient identification of pathogenic bacteria plays a pivotal role in the management of urinary tract infections.
Kun Li   +9 more
doaj   +2 more sources

Facile Synthetic Method for Pristine Graphene Quantum Dots and Graphene Oxide Quantum Dots: Origin of Blue and Green Luminescence

open access: yesAdvanced Materials, 2013
Pristine graphene quantum dots and graphene oxide quantum dots are synthesized by chemical exfoliation from the graphite nanoparticles with high uniformity in terms of shape (circle), size (less than 4 nm), and thickness (monolayer).
Fei Liu, Min-Ho Jang, Hyun Dong Ha
exaly   +2 more sources

Polypyrrole-Graphene Quantum dots Nanocomposite Layer for Detection of Uric Acid Using Plasmonic Sensor [PDF]

open access: yesInternational Journal of Biophotonics and Biomedical Engineering, 2021
A polypyrrole-graphene quantum dots nanocomposite layer was prepared on the surface of the gold layer for detection of the uric acid using the surface plasmon resonance technique.
Amir Reza Sadrolhosseini   +1 more
doaj   +1 more source

Mechanical Properties of Green Synthesized Graphene Nano-Composite Samples

open access: yesApplied Sciences, 2021
Graphene quantum dots are zero-dimensional nanoparticles that are used widely in advanced composite materials such as filtration membranes, adsorbent materials, optical devices, biomedical applications (especially biosensors), flame retardancy, and ...
Mehdi Safari   +5 more
doaj   +1 more source

Recent Advances in Inflammatory Diagnosis with Graphene Quantum Dots Enhanced SERS Detection

open access: yesBiosensors, 2022
Inflammatory diseases are some of the most common diseases in different parts of the world. So far, most attention has been paid to the role of environmental factors in the inflammatory process.
Seyyed Mojtaba Mousavi   +7 more
doaj   +1 more source

Interplay of structure and photophysics of individualized rod-shaped graphene quantum dots with up to 132 sp² carbon atoms

open access: yesNature Communications, 2023
Nanographene materials are promising building blocks for the growing field of low-dimensional materials for optics, electronics and biophotonics applications.
Daniel Medina-Lopez   +12 more
doaj   +1 more source

Spin-valley coupling in single-electron bilayer graphene quantum dots

open access: yesNature Communications, 2021
Understanding the interaction between spin and valley degrees of freedom in graphene-based quantum dots underpins their applications in electronics and quantum information.
L. Banszerus   +9 more
doaj   +1 more source

Kondo effect and spin–orbit coupling in graphene quantum dots

open access: yesNature Communications, 2021
The Kondo effect has been observed in a variety of systems, including carbon nanotube quantum dots and graphene in the presence of impurities. Here, the authors report the observation of the Kondo effect in bilayer graphene quantum dots and study its ...
Annika Kurzmann   +14 more
doaj   +1 more source

Interaction between Graphene Nanoribbon and an Array of QDs: Introducing Nano Grating

open access: yesPhotonics, 2022
In this work, the interaction between an array of QDs and Graphene nanoribbon is modeled using dipole–dipole interaction. Then, based on the presented model, we study the linear optical properties of the considered system and find that by changing the ...
Sahar Armaghani   +2 more
doaj   +1 more source

Graphene Quantum Dots Modified with Metformin/Co(II) as Efficient Oxidation Catalyst [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
While one of the valuable approaches to obtaining a heterogeneous catalyst is supporting them on a high surface area supports, the strategy mainly suffers from the low number of chelating agents on most of the supports to grip the metal cations catalysts.
Saeid Nejati   +2 more
doaj   +1 more source

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