Biomedical Applications of Quantum Dots: Overview, Challenges, and Clinical Potential

Int J Nanomedicine. 2022 May 2:17:1951-1970. doi: 10.2147/IJN.S357980. eCollection 2022.

Abstract

Despite the massive advancements in the nanomedicines and their associated research, their translation into clinically-applicable products is still below promises. The latter fact necessitates an in-depth evaluation of the current nanomedicines from a clinical perspective to cope with the challenges hampering their clinical potential. Quantum dots (QDs) are semiconductors-based nanomaterials with numerous biomedical applications such as drug delivery, live imaging, and medical diagnosis, in addition to other applications beyond medicine such as in solar cells. Nevertheless, the power of QDs is still underestimated in clinics. In the current article, we review the status of QDs in literature, their preparation, characterization, and biomedical applications. In addition, the market status and the ongoing clinical trials recruiting QDs are highlighted, with a special focus on the challenges limiting the clinical translation of QDs. Moreover, QDs are technically compared to other commercially-available substitutes. Eventually, we inspire the technical aspects that should be considered to improve the clinical fate of QDs.

Keywords: biosensors; clinical translation; clinical trials; in vivo imaging; photodynamic therapy; quantum dots.

Publication types

  • Review

MeSH terms

  • Drug Delivery Systems / methods
  • Nanomedicine
  • Nanostructures*
  • Quantum Dots*
  • Semiconductors

Grants and funding

The authors extend their appreciation to the Deputyship for Research and Innovation, Ministry of Education, Saudi Arabia, for funding this research (project number QU-IF-1-2-1). Authors also thank Qassim University for the technical support. The researchers would like to thank the Deanship of Scientific Research, Qassim University for funding the publication of this project.