Size-controlled chitosan nanoparticles prepared using ionotropic gelation

Setia Budi, B. Asih Suliasih, Indah Rahmawati, Erdawati

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


This work aimed at controlling the size of chitosan nanoparticles that were prepared by the ionotropic gelation method. Quantities of chitosan and sodium tripolyphosphate (STPP) were optimized to obtain a fine size and narrow size distribution of the nanoparticles. X-ray diffraction and selected area electron diffraction patterns indicated the existence of both crystalline and amorphous phases of chitosan. Particle size and size distribution were determined using transmission electron microscopy and dynamic laser scattering techniques. The size of the chitosan particles decreased with a reduction in STPP content due to a decrease in cross-link bonding and the formation of aggregate particles. Using this facile approach, the finest particles of chitosan were obtained in a range of 3-6 nm.

Original languageEnglish
Pages (from-to)457-461
Number of pages5
Issue number4
Publication statusPublished - Aug 2020


  • Chitosan nanoparticles
  • Ionotropic gelation method
  • Narrow size distribution
  • Size-controlled particles


Dive into the research topics of 'Size-controlled chitosan nanoparticles prepared using ionotropic gelation'. Together they form a unique fingerprint.

Cite this