Drug delivery systems based on nanoparticles and related nanostructures

Ana V Vujačić Nikezić1, Aleksandra M Bondžić1, Vesna M Vasić1

  • 1Department of Physical Chemistry, VINČA Institute of Nuclear Sciences - National Institute of th Republic of Serbia, University of Belgrade, Belgrade, Serbia.

Summary

Nanoparticles offer a promising avenue for advanced drug delivery systems, particularly in cancer therapy. These nanomaterials enhance drug efficacy and biocompatibility, paving the way for more effective treatments.

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Drug Delivery: Overview01:16

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The selection of a drug's delivery route depends upon its physicochemical properties, including lipid or water solubility and ionization, as well as the therapeutic requirement, such as immediate or sustained effect. These routes can be divided into three primary categories: enteral, parenteral, and topical.
Enteral delivery involves administering drugs directly through swallowing, sublingual placement, or buccal application. Orally administered drugs predominantly navigate the...
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Drug Delivery: Miscellaneous Routes01:22

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Factors Affecting Dissolution: Particle Size and Effective Surface Area01:23

Factors Affecting Dissolution: Particle Size and Effective Surface Area

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Bioavailability Enhancement: Drug Permeability Enhancement01:27

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Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
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Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

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Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
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Bioavailability Enhancement: Drug Solubility Enhancement01:16

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