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Related Concept Videos

Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

67
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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Modified-Release Drug Delivery Systems: Stimuli-Activated01:30

Modified-Release Drug Delivery Systems: Stimuli-Activated

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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...
58

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Related Experiment Video

Updated: Mar 7, 2026

Evaluation of Polymeric Gene Delivery Nanoparticles by Nanoparticle Tracking Analysis and High-throughput Flow Cytometry
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Stimuli-Responsive Polymeric Nanocarriers for Efficient Gene Delivery.

Yingqin Li1, Jinbiao Gao1, Chao Zhang1

  • 1Department of Biomedical Engineering, School of Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China.

Topics in Current Chemistry (Cham)
|February 15, 2017
PubMed
Summary

Researchers are developing smart, non-viral gene delivery carriers to improve gene therapy. These stimuli-responsive nanocarriers overcome biological barriers for more effective treatment of genetic diseases and cancers.

Keywords:
Gene therapyNanocarriersNon-viral vectorPolymerStimuli-responsive

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Gene Therapy

Background:

  • Gene therapy offers a promising treatment for genetic diseases and cancers.
  • Effective gene delivery vectors are crucial for successful gene therapy.
  • Current non-viral vectors have limitations in gene transfection efficiency compared to viral vectors.

Purpose of the Study:

  • To review recent advancements in stimuli-sensitive polymeric nanocarriers for gene delivery.
  • To discuss the potential of multi-stimuli-responsive strategies for enhanced gene therapy.

Main Methods:

  • Focus on stimuli-responsive polymeric nanocarriers.
  • Exploration of internal tumor-specific stimuli (pH, redox, enzymes, thermal gradients).
  • Investigation of external stimuli (ultrasound, light, magnetic, electric fields).

Main Results:

  • "Smart" non-viral carriers are being developed to overcome extra- and intracellular gene delivery obstacles.
  • Stimuli-responsive carriers can react to internal and external triggers for targeted delivery.
  • Combinations of stimuli offer potential for enhanced gene transfection efficiency.

Conclusions:

  • Stimuli-sensitive polymeric nanocarriers represent a significant advancement in non-viral gene delivery.
  • Multi-stimuli-responsive strategies hold great potential for future gene therapy applications.
  • Development of smart nanocarriers is key to overcoming current gene delivery challenges.