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Related Concept Videos

Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...

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Related Experiment Video

Updated: May 20, 2026

In Vesiculo Synthesis of Peptide Membrane Precursors for Autonomous Vesicle Growth
07:10

In Vesiculo Synthesis of Peptide Membrane Precursors for Autonomous Vesicle Growth

Published on: June 28, 2019

Peptide delivery using phospholipid micelles.

Amrita Banerjee1, Hayat Onyuksel

  • 1Department of Biopharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA.

Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
|August 1, 2012
PubMed
Summary
This summary is machine-generated.

Phospholipid micelles enhance peptide drug stability and delivery by preventing aggregation and improving circulation. This nanomedicine approach offers a promising, scalable solution for effective peptide therapeutics.

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Last Updated: May 20, 2026

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Area of Science:

  • Biotechnology
  • Materials Science
  • Pharmaceutical Sciences

Background:

  • Peptide-based drugs show therapeutic potential but face challenges due to instability and aggregation.
  • Developing effective delivery systems is crucial for realizing the full potential of peptide therapeutics.

Purpose of the Study:

  • To investigate the use of phospholipid micelles as a delivery system for peptide-based drugs.
  • To evaluate the impact of micelle encapsulation on peptide stability, bioactivity, and pharmacokinetics.

Main Methods:

  • Peptides were formulated with phospholipid micelles to assess self-association and conformational changes.
  • The stability of encapsulated peptides against aggregation and proteolytic degradation was evaluated.
  • Pharmacokinetic and biodistribution profiles were analyzed, including passive targeting to tumor and inflamed tissues.

Main Results:

  • Phospholipid micelles effectively prevent peptide aggregation without chemical modification or loss of bioactivity.
  • Encapsulated peptides adopt a stable alpha-helical conformation, enhancing receptor interaction and proteolytic resistance.
  • Micelle encapsulation improves peptide pharmacokinetics, enabling passive targeting and reducing required dosage.

Conclusions:

  • Phospholipid micelles offer a safe, stable, and effective platform for peptide drug delivery.
  • This nanomedicine approach enhances peptide drug efficacy, reduces side effects, and is amenable to clinical scale-up and lyophilization.