Exocytosis of nanoparticles from cells: Role in cellular retention and toxicity

Ramin Sakhtianchi, Rodney F. Minchin, Ki Bum Lee, Alaaldin M. Alkilany, Vahid Serpooshan, Morteza Mahmoudi

Research output: Contribution to journalReview articlepeer-review

145 Scopus citations


Over the past decade, nanoparticles (NPs) have been increasingly developed in various biomedical applications such as cell tracking, biosensing, contrast imaging, targeted drug delivery, and tissue engineering. Their versatility in design and function has made them an attractive, alternative choice in many biological and biomedical applications. Cellular responses to NPs, their uptake, and adverse biological effects caused by NPs are rapidly-growing research niches. However, NP excretion and its underlying mechanisms and cell signaling pathways are yet elusive. In this review, we present an overview of how NPs are handled intracellularly and how they are excreted from cells following the uptake. We also discuss how exocytosis of nanomaterials impacts both the therapeutic delivery of nanoscale objects and their nanotoxicology.

Original languageEnglish (US)
Pages (from-to)18-29
Number of pages12
JournalAdvances in colloid and interface science
StatePublished - 2013

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry


  • Exocytosis
  • Nanoparticles
  • Nanotoxicology
  • Therapeutic delivery

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