Near infrared quantum dots in biomedical applications: current status and future perspective

Area of Science:

• Nanotechnology
• Biomedical Engineering
• Materials Science

Background:

• Fluorescent nanomaterials are crucial for biomedical applications like biosensing, bioimaging, and drug delivery.
• Near-infrared quantum dots (NIR QDs) combine quantum dot properties with near-infrared light advantages, making them promising fluorescent labels.

Purpose of the Study:

• To review the basic structures, properties, classification, and synthesis of NIR QDs.
• To highlight the functionalization and bioconjugation strategies for NIR QDs.
• To summarize the biomedical applications of NIR QDs in diagnostics and therapeutics.

Main Methods:

• Comprehensive literature search of scientific references from the past 10 years.
• Systematic review and summarization of existing research on NIR QDs.
• Categorization of NIR QDs based on structure, properties, and applications.

Main Results:

• NIR QDs exhibit unique optical and electronic properties suitable for biomedical use.
• Various synthetic methods exist for NIR QDs, with ongoing advancements in control and efficiency.
• Functionalization and bioconjugation enable targeted delivery and specific detection in biological systems.

Conclusions:

• NIR QDs are versatile tools for advanced biomedical applications, including diagnostics and drug delivery.
• Continued research into NIR QD synthesis and bioconjugation will further enhance their utility.
• NIR QDs represent a significant advancement in nanodiagnostics and nanomedicine.