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Related Concept Videos

Modified-Release Drug Delivery Systems: Site-Targeted01:24

Modified-Release Drug Delivery Systems: Site-Targeted

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.
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...
Bioavailability Enhancement: Drug Permeability Enhancement01:27

Bioavailability Enhancement: Drug Permeability Enhancement

After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt secretion,...

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Related Experiment Video

Updated: May 19, 2026

Solid Lipid Nanoparticles (SLNs) for Intracellular Targeting Applications
08:19

Solid Lipid Nanoparticles (SLNs) for Intracellular Targeting Applications

Published on: November 17, 2015

Engineering Bioactive Liposomal Nanoparticles for Kidney-Targeted ECFC Backpacks.

Brenda Cruz-Gonzalez1, Fei Fan1, Eva Hall1

  • 1Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, Indiana 46556, United States.

ACS Applied Bio Materials
|May 18, 2026
PubMed
Summary
This summary is machine-generated.

Engineered endothelial cells (ECFCs) with targeted nanoparticles show improved kidney cell binding for enhanced vascular repair and regeneration. This nanotechnology advances precision medicine for organ-specific therapies.

Keywords:
KTPactive targetingbackpack moleculesclick-chemistryendothelial colony-forming cellsnanoparticlesregenerative medicinerenal delivery

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Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Nanotechnology

Background:

  • Endothelial colony-forming cells (ECFCs) are crucial for vascular repair and kidney regeneration.
  • Current limitations include poor selective homing and retention of ECFCs in target tissues.

Purpose of the Study:

  • To enhance ECFC targeting to human renal proximal tubular epithelial cells.
  • To develop a cell surface engineering strategy using kidney-targeted liposomal nanoparticles.

Main Methods:

  • Conjugation of kidney-targeted liposomal nanoparticles to ECFCs via thiol-maleimide chemistry.
  • Incorporation of a targeting peptide for receptor-mediated binding.
  • Optimization of nanoparticle conjugation and loading while assessing ECFC phenotype and viability.

Main Results:

  • Achieved enhanced binding of engineered ECFCs to renal epithelial cells in vitro.
  • Demonstrated preservation of ECFC phenotypes and cellular function post-engineering.
  • Showcased tunable nanoparticle properties for renal targeting and minimal off-target interactions with fibroblasts.

Conclusions:

  • Surface-engineered ECFCs exhibit in vitro kidney cell selectivity.
  • This approach provides a foundation for precision nanotechnology in regenerative therapies.
  • The modular design offers potential for enhanced biocompatibility and organ-specific treatments.