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Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.

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Related Experiment Video

Updated: Jun 8, 2026

Formulation of Diblock Polymeric Nanoparticles through Nanoprecipitation Technique

Formulation of Diblock Polymeric Nanoparticles through Nanoprecipitation Technique

Published on: September 20, 2011

Polymer nanomedicines.

Jindřich Kopeček¹, Jiyuan Yang²

¹Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, USA; Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA.

Advanced Drug Delivery Reviews

|August 1, 2020

Summary

This summary is machine-generated.

Polymer nanomedicines, large molecules for drug delivery, show promise in treating diseases. This review covers their design, efficacy, and innovative applications like combination chemotherapy and drug-free therapeutics.

Keywords:

Cancer Checkpoint inhibition Drug-free macromolecular therapeutics Macromolecular therapeutics Multivalent polymer peptide antagonists Nanomedicine Polymer-drug conjugates Polymeric nanomedicines

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Area of Science:

Polymer chemistry
Nanomedicine
Drug delivery systems

Background:

Polymer nanomedicines are large biologically active compounds.
This review focuses on polymer-drug conjugates and polymer-protein bioconjugates.

Purpose of the Study:

To review the design principles and structures of polymer nanomedicines.
To examine the efficacy of polymer nanomedicines in preclinical models.
To highlight innovative directions in macromolecular therapeutics.

Main Methods:

Analysis of design principles for polymer carriers.
Review of bioconjugates of water-soluble macromolecules with drugs and proteins.
Examination of efficacy in animal models.

Main Results:

Discussion of various polymer carrier structures.
Evaluation of conjugate efficacy in preclinical studies.
Identification of challenges for clinical translation.

Conclusions:

Polymer nanomedicines offer versatile platforms for drug delivery.
Innovative strategies include receptor crosslinking for combination chemotherapy and drug-free therapeutics.
Further research is needed for successful clinical translation.