Results 1 to 10 of about 1,319,114 (288)

Electrochemical Method To Prepare Graphene Quantum Dots and Graphene Oxide Quantum Dots [PDF]

ACS Omega, 2017
In this study, we present the preparation of graphene quantum dots (GQDs) and graphene oxide quantum dots (GOQDs). GQDs/GOQDs are prepared by an easy electrochemical exfoliation method, in which two graphite rods are used as electrodes. The electrolyte used is a combination of citric acid and alkali hydroxide in water.
Satyaprakash Ahirwar, Sudhanshu Mallick, Dhirendra Bahadur   +2 more
doaj   +3 more sources

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

Nanomaterials, 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,
Paloma Yáñez-Sedeño, Susana Campuzano Ruiz, José Pingarrón   +2 more
exaly   +5 more sources

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

International 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, Seyedeh Mehri Hamidi   +1 more
doaj   +1 more source

Mechanical Properties of Green Synthesized Graphene Nano-Composite Samples

Applied 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, Ricardo Alves de Sousa, Mazaher Salamat-Talab, Jalal Joudaki, Davood Ghanbari, Amir Bakhtiari   +5 more
doaj   +1 more source

Quantum Dots in Graphene [PDF]

Physical Review Letters, 2007
4 pages, 3 ...
Silvestrov, P. G., Efetov, K. B.
openaire   +3 more sources

Graphene based quantum dots [PDF]

Journal of Physics: Condensed Matter, 2010
17pages, 4figures ...
Zhang, H G, Hu, H, Pan, Y, Mao, J H, Gao, M, Guo, H M, Du, S X, Greber, T, Gao, H J   +8 more
openaire   +4 more sources

Chiral Graphene Quantum Dots [PDF]

ACS Nano, 2016
Chiral nanostructures from metals and semiconductors attract wide interest as components for polarization-enabled optoelectronic devices. Similarly to other fields of nanotechnology, graphene-based materials can greatly enrich physical and chemical phenomena associated with optical and electronic properties of chiral nanostructures and facilitate their
Nozomu, Suzuki, Yichun, Wang, Paolo, Elvati, Zhi-Bei, Qu, Kyoungwon, Kim, Shuang, Jiang, Elizabeth, Baumeister, Jaewook, Lee, Bongjun, Yeom, Joong Hwan, Bahng, Jaebeom, Lee, Angela, Violi, Nicholas A, Kotov   +12 more
openaire   +2 more sources

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

Biosensors, 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, Seyyed Alireza Hashemi, Masoomeh Yari Kalashgrani, Darwin Kurniawan, Ahmad Gholami, Vahid Rahmanian, Navid Omidifar, Wei-Hung Chiang   +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

Nature 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, Thomas Liu, Silvio Osella, Hugo Levy-Falk, Nicolas Rolland, Christine Elias, Gaspard Huber, Pranav Ticku, Loïc Rondin, Bruno Jousselme, David Beljonne, Jean-Sébastien Lauret, Stephane Campidelli   +12 more
doaj   +1 more source

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

Nature 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, S. Möller, C. Steiner, E. Icking, S. Trellenkamp, F. Lentz, K. Watanabe, T. Taniguchi, C. Volk, C. Stampfer   +9 more
doaj   +1 more source