Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A DFT study of physical properties of the new Cr<sub>2</sub>S<sub>2</sub>BrCl material.

Journal of molecular graphics & modelling·2025
Same author

Enhancing organic SCs efficiency with CSi quantum dots in A-π-D architectures.

Physical chemistry chemical physics : PCCP·2025
Same author

Thermal transport in multilayer silicon carbide nanoribbons: reverse non-equilibrium molecular dynamics.

Physical chemistry chemical physics : PCCP·2024
Same author

Size engineering optoelectronic features of C, Si and CSi hybrid diamond-shaped quantum dots.

RSC advances·2022
Same author

Graphene-based SiC Van der Waals heterostructures: nonequilibrium molecular dynamics simulation study.

Journal of molecular modeling·2022
Same author

Thermal strain engineering of mechanical properties in Si-based hybrid sheets via molecular dynamics simulations.

Journal of molecular modeling·2021

Related Experiment Video

Updated: Sep 25, 2025

Rapid Detection of Helicobacter pylori Virulence and Typing Using Quantum Dot Labeling Technology
05:13

Rapid Detection of Helicobacter pylori Virulence and Typing Using Quantum Dot Labeling Technology

Published on: June 13, 2025

263

Graphene and silicene quantum dots for nanomedical diagnostics.

L B Drissi1,2,3, H Ouarrad1, F Z Ramadan1

  • 1LPHE, Modeling and Simulations, Faculty of Science, Mohammed V University in Rabat Rabat Morocco ldrissi@fr.ac.ma.

RSC Advances
|May 2, 2022
PubMed
Summary

Edge functionalization of graphene and silicene quantum dots significantly alters their electronic and optical properties. This tunability makes them promising for advanced nanomedical imaging and diagnostic applications.

More Related Videos

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays
07:13

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Published on: June 28, 2024

1.6K
Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
10:56

Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications

Published on: February 6, 2016

14.1K

Related Experiment Videos

Last Updated: Sep 25, 2025

Rapid Detection of Helicobacter pylori Virulence and Typing Using Quantum Dot Labeling Technology
05:13

Rapid Detection of Helicobacter pylori Virulence and Typing Using Quantum Dot Labeling Technology

Published on: June 13, 2025

263
Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays
07:13

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Published on: June 28, 2024

1.6K
Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
10:56

Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications

Published on: February 6, 2016

14.1K

Area of Science:

  • Computational materials science
  • Quantum chemistry
  • Nanotechnology

Background:

  • Graphene and silicene quantum dots (QDs) are nanomaterials with tunable properties.
  • Their optoelectronic characteristics are crucial for applications in bioimaging and diagnostics.
  • Controlling these properties through edge modification is an active area of research.

Purpose of the Study:

  • To investigate the impact of edge functionalization, size, and base material on diamond-shaped graphene and silicene QDs.
  • To explore the effects of specific functional groups (-CH3, -OH, -COOH) on QD properties.
  • To assess the potential of these modified QDs for nanomedical applications.

Main Methods:

  • First-principles calculations based on density functional theory (DFT).
  • Time-dependent density functional theory (TD-DFT) for optical properties.
  • Many-body perturbation theory for electronic structure.
  • Analysis of structural, electronic, and optical properties.

Main Results:

  • Edge functionalization significantly modulates the highest occupied molecular orbital-lowest unoccupied molecular orbital (HOMO-LUMO) energy gap.
  • Optical absorption and photoluminescence spectra are altered by functional groups and geometric distortions.
  • Properties can be tuned across the ultra-violet to near-infra-red spectrum.
  • Functionalized QDs show distinct changes compared to hydrogen-passivated ones.

Conclusions:

  • Edge functionalization is a key strategy for tuning the optoelectronic properties of graphene and silicene QDs.
  • These modified QDs show potential for diverse nanomedical applications.
  • Specifically, they are suitable for in vitro and in vivo bioimaging in medical diagnostics and therapy.