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Related Concept Videos

Micelles01:30

Micelles

Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...
Colloids03:22

Colloids

Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
Surface Active Agents01:27

Surface Active Agents

Surfactants, named for their behavior at interfaces, positively adsorb at the interfaces of two phases, reducing interfacial tension. Their versatility as emulsifiers, detergents, and foaming agents stems from this ability. Surfactants, often termed amphiphiles, share the property of amphipathy, with molecules having both hydrophilic and hydrophobic portions. The hydrophilic part is called the head, and the hydrophobic part, including an elongated alkyl substituent, forms the tail.Surfactants...
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: Jun 17, 2026

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
10:53

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

Micelles based on HPMA copolymers.

M Talelli1, C J F Rijcken, C F van Nostrum

  • 1Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands.

Advanced Drug Delivery Reviews
|December 17, 2009
PubMed
Summary
This summary is machine-generated.

Polymeric micelles using poly[N-(2-hydroxypropyl) methacrylamide] (pHPMA) show promise for drug delivery. These nanoparticles can be engineered as drug carriers, leveraging the enhanced permeation and retention effect for cancer therapy.

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Last Updated: Jun 17, 2026

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
10:53

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

Assembly and Characterization of Polyelectrolyte Complex Micelles
08:44

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Published on: December 23, 2016

Area of Science:

  • Biomedical Engineering
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Polymeric micelles are nano-sized drug delivery systems formed by amphiphilic block copolymers.
  • They accumulate in tumors via the enhanced permeation and retention (EPR) effect, ideal for anticancer drug delivery.
  • Effective micelles require long circulation times and stable drug loading.

Purpose of the Study:

  • To review the applications of poly[N-(2-hydroxypropyl) methacrylamide] (pHPMA) in polymeric micelle drug delivery systems.
  • To highlight pHPMA's dual role as a hydrophilic stealth corona or a hydrophobic core component.
  • To summarize the potential of pHPMA-based micelles in pharmaceutical and biomedical research.

Main Methods:

  • Self-assembly of amphiphilic block copolymers in aqueous solutions to form micelles.
  • Modification of pHPMA with hydrophobic moieties to create micellar cores for drug solubilization.
  • Evaluation of pHPMA-based micelles for drug loading, stability, and in vitro/in vivo performance.

Main Results:

  • pHPMA demonstrates versatility, functioning as a hydrophilic "stealth" coating or a hydrophobic core for drug encapsulation.
  • HPMA-based micelles exhibit promising in vitro and in vivo results for drug delivery applications.
  • The biocompatibility and functionalization potential of pHPMA contribute to its suitability for micelle technology.

Conclusions:

  • pHPMA is a valuable polymer for developing advanced polymeric micelle drug delivery systems.
  • HPMA-based micelles offer a tunable platform for solubilizing and retaining hydrophobic drugs.
  • The properties of pHPMA support its use in enhancing drug delivery efficacy, particularly for anticancer therapies.