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Related Experiment Videos

Simulation and optimisation of a self-regulating insulin delivery system

F Fischel-Ghodsian1, J M Newton

  • 1Department of Engineering Science, University of Oxford, UK.

Journal of Drug Targeting
|January 1, 1993
PubMed
Summary

This study models an implantable artificial pancreas that releases insulin based on glucose levels. Computer simulations guide development, showing potential for improved diabetes management.

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Area of Science:

  • Biomaterials Science
  • Chemical Engineering
  • Endocrinology

Background:

  • Diabetes mellitus management requires precise insulin delivery.
  • Implantable polymeric systems offer a promising approach for glucose-responsive insulin release.
  • Existing systems require further optimization for clinical application.

Purpose of the Study:

  • To develop a mathematical model of a glucose-responsive polymer matrix for insulin delivery.
  • To analyze the functional characteristics of the system using computer simulations.
  • To guide experimental development of a polymer-based artificial pancreas.

Main Methods:

  • Constructed a mathematical model based on physical and chemical properties of the polymer system.
  • Utilized scanning electron microscopy, experimental measurements, and reported values for model development.

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  • Validated the model through comparison with experimental results and assumption verification.
  • Performed computer simulations to optimize system parameters and assess performance.

    • Main Results:

    • Enzyme concentration, pore length, particle size, and insulin loading showed minimal impact on performance.
    • System performance was significantly enhanced by utilizing a hypothetical insulin molecule with altered solubility.
    • The model provides a rational basis for experimental development of the artificial pancreas.

    Conclusions:

    • Mathematical modeling and computer simulations are valuable tools for optimizing implantable drug delivery systems.
    • The developed model can guide the design of more effective polymer-based artificial pancreas devices.
    • Further research into insulin solubility characteristics could significantly improve glucose-responsive delivery systems.