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[Interaction between insulin with liposome]

Xuan Zhang1, Xian-rong Qi, Qiang Zhang

  • 1School of Pharmaceutical Science, Peking University, Beijing 100083, China.

Yao Xue Xue Bao = Acta Pharmaceutica Sinica
|February 13, 2003
PubMed

Insights

This study investigated insulin and liposome interactions using spectroscopy and calorimetry. Results reveal a weak interaction between insulin and liposomes, with only 0.2% combination observed.

Area of Science:

  • Biochemistry
  • Physical Chemistry
  • Drug Delivery Systems

Context:

  • Liposomes are widely used as drug delivery vehicles.
  • Understanding drug-carrier interactions is crucial for optimizing delivery efficacy.
  • Insulin delivery faces challenges due to its nature and potential interactions with carriers.

Purpose:

  • To characterize the interaction between insulin and liposomes.
  • To quantify the binding affinity and nature of insulin-liposome association.
  • To evaluate the stability of insulin within liposomal formulations.

Summary:

  • Insulin-liposome interactions were assessed using fluorescence spectroscopy and microcalorimetry.
  • Fluorescence quenching studies and thermodynamic analysis indicated weak binding.
  • High-performance liquid chromatography (HPLC) confirmed minimal insulin association with liposomes (0.2% combination).

Impact:

  • The findings suggest limited direct interaction between insulin and liposomes.
  • This information is vital for designing effective insulin-loaded liposomal formulations.
  • Further research may explore modifications to enhance insulin encapsulation and stability in liposomes.
Abstract

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