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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...
Gene Therapy00:59

Gene Therapy

Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be inserted. The...

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Updated: Jun 21, 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

Biodegradable poly(ester amine)s for gene delivery applications.

Rohidas B Arote1, Dhananjay Jere, Hu-Lin Jiang

  • 1Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Korea.

Biomedical Materials (Bristol, England)
|July 9, 2009
PubMed
Summary
This summary is machine-generated.

Poly(ester amine)s (PEAs) show promise as versatile gene delivery vectors. Their degradation, properties, and targeted modifications enhance efficiency and reduce toxicity for in vitro and in vivo applications.

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Gene Therapy

Background:

  • Cationic polymers are explored as gene delivery vectors due to their versatility.
  • Poly(ester amine)s (PEAs) are a class of cationic polymers with potential for gene delivery.

Purpose of the Study:

  • To characterize poly(ester amine)s (PEAs) as gene delivery carriers.
  • To evaluate the impact of degradation patterns on PEA toxicity.
  • To discuss modifications for targeted gene delivery.

Main Methods:

  • Classification of PEAs based on physicochemical properties.
  • In vitro and in vivo assessment of PEA gene delivery efficiency.
  • Analysis of ligand/charged group conjugation for receptor-mediated endocytosis.

Main Results:

  • PEAs demonstrate efficient gene delivery both in vitro and in vivo.
  • Degradation patterns are crucial for minimizing PEA toxicity.
  • Conjugation strategies enable targeted DNA delivery.

Conclusions:

  • Cationic PEAs are effective gene delivery carriers.
  • PEA characteristics, including degradation and targeted modifications, are key to their success.
  • PEAs serve as valuable models for understanding effective gene carrier properties.