How to measure release from nanosized carriers?

Eur J Pharm Sci. 2018 Jul 30;120:199-211. doi: 10.1016/j.ejps.2018.05.004. Epub 2018 May 8.


Novel drug delivery systems exhibit great potential in the formulation of poorly soluble compounds but have also been applied to reduce side effects of highly active drug molecules. Despite all efforts, there are only few technologies available to investigate the in vitro release of next-generation nanotherapeutics. In the following, different approaches for testing the drug release from nanoparticles in the fields of formulation development and quality control will be discussed. A variety of methods is available, starting from dialysis-based equipment, in situ measurements, flow-through devices and sample and separate setups. If possible, these methods should enable a more rapid formulation development and quality control of nanosized carriers as well as improve the prediction of in vivo performance and clinical outcomes.

Keywords: Dialysis; Dissolution; Drug delivery; Drug release; IVIVC; Nanoparticles; Sample and separate.

Publication types

  • Review

MeSH terms

  • Drug Carriers*
  • Drug Compounding
  • Drug Liberation
  • Kinetics
  • Models, Chemical
  • Nanoparticles*
  • Nanotechnology / methods*
  • Particle Size
  • Pharmaceutical Preparations / administration & dosage
  • Pharmaceutical Preparations / chemistry*
  • Solubility
  • Technology, Pharmaceutical / methods*


  • Drug Carriers
  • Pharmaceutical Preparations