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Gold nanoparticles as carriers for efficient transmucosal insulin delivery
Hrushikesh M Joshi1, Devika R Bhumkar, Kalpana Joshi
1Nanoscience Group, Materials Chemistry Division, National Chemical Laboratory, Pune 411 008, India.
Langmuir : the ACS Journal of Surfaces and Colloids
|December 28, 2005
Summary
Gold nanoparticles effectively deliver insulin via transmucosal routes, significantly reducing blood glucose levels in diabetic rats. This nanoparticle-based insulin delivery shows promise for diabetes mellitus treatment.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Pharmacology
Background:
- Nanomaterials are crucial in medicine for drug delivery.
- Insulin delivery is vital for managing diabetes mellitus.
- Current insulin delivery methods have limitations.
Purpose of the Study:
- To investigate gold nanoparticles as carriers for insulin.
- To evaluate transmucosal insulin delivery for diabetes treatment.
- To compare oral and intranasal delivery of insulin-loaded nanoparticles.
Main Methods:
- Insulin was loaded onto bare and aspartic acid-capped gold nanoparticles.
- Diabetic Wistar rats were used to test oral and intranasal delivery.
- Blood glucose levels were monitored to assess efficacy.
Main Results:
- Gold nanoparticles successfully bound insulin.
- Transmucosal delivery of insulin via gold nanoparticles significantly reduced blood glucose.
- Intranasal delivery showed comparable results to subcutaneous insulin injection.
Conclusions:
- Gold nanoparticles are effective carriers for insulin delivery.
- Transmucosal administration offers a promising alternative for diabetes treatment.
- Further development of this nanoparticle-based system is warranted.