Tag: Microspheres

Total: 1 post

Multi-unit dosage forms-pelletization

Head of Core Facility
Prof. István Antal

Core Facility Address
Department of Pharmaceutics, Semmelweis University;
Hőgyes Endre u. 7.
H-1092

Contact E-mail
Dr. Nikolett Kállai-Szabó
gyogyszereszeti.titkarsag@semmelweis.hu
kallai.nikolett@semmelweis.hu

Staff
5

Quality Control
ISO9001

What we offer

  • Optimisation of pellet production composition and process (DoE)
  • Investigation of the micro- and macrostructure of the pellets produced (determination of shape parameters by image analysis, bulk density, in vitro drug release)
  • Preparation and testing of drug formulation from pellets

Why work with us

We have decades of experience in formulating multiparticle systems. Our Institute has been involved in several formulation development projects.

Our equipment

  • Layering and Drying process: Aeromatic Fielder fluid bed model STREA 1 (Aeromatic-Fielder AG, Switzerland) – With plastic chamber (max 2 kg capacity), bottom and top spraying option, different nozzle diameters (d=0.5; 0.8 and 1.2 mm) available
  • Extrusion: Caleva Multi Lab extruder (Caleva Process Solutions Ltd., Sturminster Newton, UK) – To produce the homogeneous powder mixture required for extrusion, we have a lab-scale V-blender and a high-speed mixer (Stephan UMC 5).
    5 various die hole diameters (0.8 mm; 1.0 mm; 1.5 mm; 2.00 mm and 2.5 mm) can be built into the single screw extruder.
  • Spheronization: Spheronizer (Locost GSZF-AK spheronizer; Locost Kft., Tiszaalpár, Hungary)
  • In vitro drug release: Hanson SR8-PlusTM Dissolution Test Station with E-probe; AutoPlus Maximizer and Multifill collector, Hanson Research, USA
  • Shape parameters: Keyence VHX digital microscope or Nikon SMZ 1000 stereomicroscope. Shape parameters can be determined using ImagePro Plus 4.5 software developed by Media Cybernetics, USA. Measurments with Fiji ImageJ also possible.

References

  • Kállai-Szabó, N. ; Farkas, D. ; Lengyel, M. ; Basa, B. ; Fleck, C. ; Antal, I. ✉
    Microparticles and multi-unit systems for advanced drug delivery
    EUROPEAN JOURNAL OF PHARMACEUTICAL SCIENCES 194 Paper: 106704 , 25 p. (2024)
  • Király, Márton ; Sántha, Konrád ; Kállai-Szabó, Barnabás ; Pencz, Kriszta Mariann ; Ludányi, Krisztina ✉ ; Kállai-Szabó, Nikolett ✉ ; Antal, István ✉
    Development and Dissolution Study of a β-Galactosidase Containing Drinking Straw
    PHARMACEUTICS 14 : 4 Paper: 769 , 15 p. (2022)
  • Lengyel, Miléna ; Kállai-Szabó, Nikolett ; Antal, Vince ; Laki, András József ; Antal, István ✉
    Microparticles, Microspheres, and Microcapsules for Advanced Drug Delivery
    SCIENTIA PHARMACEUTICA 87 : 3 Paper: 20 , 31 p. (2019)
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