Biological Applications and Toxicity Minimization of Semiconductor Quantum Dots

Samira Filali1, Fabrice Pirot2, Pierre Miossec3

  • 1Immunogenomics and Inflammation Research Unit EA 4130, Department of Immunology and Rheumatology, Edouard Herriot Hospital, Hospices Civils de Lyon, University of Lyon, Lyon, France; Laboratory of Research and Development of Industrial Galenic Pharmacy and Laboratory of Tissue Biology and Therapeutic Engineering UMR-CNRS 5305, Pharmacy Department, FRIPHARM Platform, Edouard Herriot Hospital, Hospices Civils de Lyon, University of Lyon, Lyon, France.

Trends in Biotechnology
|September 2, 2019
PubMed
Summary

Semiconductor quantum dots (QDs) show great promise but have toxicity concerns. This study explores strategies to minimize QD toxicity for safe biomedical applications.

Related Concept Videos

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

The fabrication process and experimental characterization techniques relevant to single-electron pumps based on silicon metal-oxide-semiconductor quantum dots are...
15.4K
Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications10:56

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

In this protocol, the synthesis of Cd-free InP/ZnS quantum dots (QDs) is detailed. InP-based QDs are gaining popularity due to the toxicity of Cd2+ ions that may be released through nanoparticle degradation. After synthesis, QDs are solubilized in water using an amphiphilic polymer for use in biomedical...
14.5K
Production and Targeting of Monovalent Quantum Dots10:16

Production and Targeting of Monovalent Quantum Dots

We provide detailed instructions for the preparation of monovalent targeted quantum dots (mQDs) from phosphorothioate DNA of defined length. DNA wrapping occurs in high yield, and therefore, products do not require purification. We demonstrate the use of the SNAP tag to target mQDs to cell-surface receptors for live-cell imaging applications.
26.0K
Compact Quantum Dots for Single-molecule Imaging17:14

Compact Quantum Dots for Single-molecule Imaging

We describe the preparation of colloidal quantum dots with minimized hydrodynamic size for single-molecule fluorescence imaging. Compared to conventional quantum dots, these nanoparticles are similar in size to globular proteins and are optimized for single-molecule brightness, stability against photodegradation, and resistance to nonspecific binding to proteins and...
18.7K
Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection12:57

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Resonant excitation of a single self-assembled quantum dot can be achieved using an excitation mode orthogonal to the fluorescence collection mode. We demonstrate a method using the waveguide and Fabry-Perot modes of a planar microcavity surrounding the quantum dots. The method allows complete freedom in the detection...
9.6K
Fluorescent Lateral Flow Immunoassay Based on Quantum Dots Nanobeads07:13

Fluorescent Lateral Flow Immunoassay Based on Quantum Dots Nanobeads

Here, we describe a protocol for the preparation of quantum dot nanobeads (QDNB) and the detection of disease biomarkers using QDNB-based lateral flow immunoassay strips. The test results can be qualitatively assessed under UV light illumination and quantitatively measured using a fluorescent strip reader within 15...
2.1K