Nanoparticles have been used to overcome the limitations of oral drug delivery. This study was performed
to examine the effects of modifying Digitaria exilis starch by cross-linking with multifunctional excipients: citric acid (CA)
and sodium tripolyphosphate (STPP) to produce starch citrate and phosphate respectively at 20 % concentration.
Thereafter, nanoparticles were synthesized via the nanoprecipitation method in the presence of Tween® 80, using
ibuprofen as the model drug. The physicochemical properties of the modified starch were evaluated and the
nanoparticles characterized by the encapsulation efficiciency, loading capacity, particle size, polydispersity index,
scanning electron microscope (SEM), fourier transform infrared spectroscopy(FTIR), in vitro drug release and release
kinetics. Results show that both cross-linkers improved the physicochemical properties of the starch, and produced
particles in the nanometer range (616 nm and 933 nm) for citric acid and sodium tripolyphosphate nanoparticles
respectively. Spherical and pitted particles corresponding to citric acid and sodium tripolyphosphate nanoparticles
respectively were produced and they both showed a controlled release of ibuprofen from the formulation and both
followed the Higuchi kinetic model with R2 values that exhibited a non-fickian diffusion pattern. This study revealed
that the two excipients had different effects on the size and morphology of the nanoparticles and controlled the release of
drug from the nanoparticles.
Starch citric acid sodium tripolyphosphate nanoparticles ibuprofen multifunctional excipient
Birincil Dil | İngilizce |
---|---|
Konular | Farmasotik Biyoteknoloji, Farmasotik Kimya |
Bölüm | Articles |
Yazarlar | |
Yayımlanma Tarihi | 28 Haziran 2025 |
Yayımlandığı Sayı | Yıl 2022 Cilt: 26 Sayı: 5 |