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Related Concept Videos

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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 18, 2026

Evaluation of Polymeric Gene Delivery Nanoparticles by Nanoparticle Tracking Analysis and High-throughput Flow Cytometry
08:51

Evaluation of Polymeric Gene Delivery Nanoparticles by Nanoparticle Tracking Analysis and High-throughput Flow Cytometry

Published on: March 1, 2013

Degradable polymers for gene delivery.

Joel Sunshine1, Nupura Bhise, Jordan J Green

  • 1Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|December 8, 2009
PubMed
Summary
This summary is machine-generated.

New degradable polymers effectively deliver genes by self-assembling with DNA into particles. These novel materials outperform existing options for gene delivery to fibroblasts, showing promise for cancer therapeutics and regenerative medicine.

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Last Updated: Jun 18, 2026

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Methionine Functionalized Biocompatible Block Copolymers for Targeted Plasmid DNA Delivery
08:09

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Published on: August 6, 2019

Area of Science:

  • Biomaterials Science
  • Gene Therapy
  • Polymer Chemistry

Background:

  • Gene delivery is crucial for therapeutics and research.
  • Current gene delivery vectors face limitations in efficiency and cell-type specificity.
  • Developing novel, effective, and safe gene delivery systems is a priority.

Purpose of the Study:

  • To synthesize and characterize novel degradable polymers for gene delivery.
  • To investigate the self-assembly of these polymers with DNA into functional particles.
  • To evaluate the efficacy of these polymer-DNA particles for gene delivery across different cell types.

Main Methods:

  • Synthesis of various degradable polymers.
  • Characterization of polymer structure and properties.
  • Formation of polymer-DNA nanoparticles.
  • In vitro gene delivery assays using cancerous and primary human fibroblasts.
  • Comparison with commercial transfection reagents (Lipofectamine 2000, polyethylenimine).

Main Results:

  • Degradable polymers successfully self-assembled with DNA into gene-delivery particles.
  • Particle efficacy was sensitive to polymer synthesis and formulation conditions.
  • The synthesized polymers demonstrated superior gene delivery efficiency compared to Lipofectamine 2000 and polyethylenimine in both cancerous and primary human fibroblasts.
  • Cell-type dependent variations in efficacy were observed.

Conclusions:

  • Novel degradable polymers can form effective DNA nanoparticles for gene delivery.
  • Optimization of polymer synthesis and formulation is key to maximizing gene delivery efficiency.
  • These materials represent a promising alternative to existing gene delivery vectors, particularly for fibroblast applications.
  • Potential applications include cancer therapeutics and regenerative medicine.