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Related Concept Videos

Modified-Release Drug Delivery Systems: Stimuli-Activated01:30

Modified-Release Drug Delivery Systems: Stimuli-Activated

Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also called...
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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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Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization
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Polymer-based stimuli-responsive nanosystems for biomedical applications.

Madhura Joglekar1, Brian G Trewyn

  • 1Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, CO 80401, USA.

Biotechnology Journal
|July 12, 2013
PubMed
Summary
This summary is machine-generated.

Organic polymers and hybrid nanosystems are advancing biotechnology. Stimuli-responsive polymers and inorganic nanoparticles create smart nanomedicine for drug delivery, imaging, and tissue engineering.

Keywords:
BiomedicalHybridNanosystemsPolymersStimuli-responsive

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Area of Science:

  • Biotechnology and Nanomedicine
  • Materials Science

Background:

  • Organic polymers and inorganic/organic hybrid systems are increasingly used in biotechnology.
  • Polymeric nanosystems like micelles, polymersomes, and nanohydrogels are assembled from polymers with varying structures and molecular weights.
  • These nanosystems utilize hydrophobic and hydrophilic blocks, making them suitable for diagnostic and therapeutic applications.

Purpose of the Study:

  • To review the physical properties and applications of organic and organic/inorganic hybrid nanosystems.
  • To highlight recent breakthroughs in nanomedicine, focusing on drug delivery, imaging, tissue engineering, and separations.
  • To discuss future directions in the field of advanced nanosystems.

Main Methods:

  • Review of current literature on organic and hybrid nanosystems.
  • Analysis of stimuli-responsive polymer functionalities.
  • Integration of inorganic nanoparticles with polymer systems.

Main Results:

  • Stimuli-responsive polymers enable advanced nanosystems that react to internal/external triggers (pH, temperature, light, etc.).
  • Hybrid nanosystems incorporating inorganic nanoparticles (gold, silica, iron oxide) offer enhanced multifunctionality.
  • Nanosystems show significant progress in drug delivery, medical imaging, tissue engineering, and separation technologies.

Conclusions:

  • Organic and hybrid nanosystems, particularly stimuli-responsive ones, are crucial for next-generation nanomedicine.
  • The combination of smart polymers and inorganic nanoparticles opens new avenues for advanced biomedical applications.
  • Continued research is essential to fully realize the potential of these nanosystems in various biotechnological fields.