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Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

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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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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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Targeting Endothelial Cells with Multifunctional GaN/Fe Nanoparticles.

Tudor Braniste1,2, Ion Tiginyanu1, Tibor Horvath2

  • 1National Center for Materials Study and Testing, Technical University of Moldova, Stefan cel Mare av. 168, MD-2004, Chisinau, Republic of Moldova.

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Multifunctional gallium nitride nanoparticles are taken up by endothelial cells without causing damage. These nanoparticles can be used for cell manipulation in external magnetic fields.

Keywords:
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Area of Science:

  • Nanotechnology
  • Materials Science
  • Cell Biology

Background:

  • Endothelial cells play a crucial role in vascular health.
  • Developing safe and effective nanoparticles for biomedical applications is essential.

Purpose of the Study:

  • To investigate the interaction of novel gallium nitride-based nanoparticles with living endothelial cells.
  • To assess the biocompatibility and cellular uptake of these nanoparticles.
  • To explore the potential of these nanoparticles for cell manipulation.

Main Methods:

  • Synthesis of iron oxide-alloyed zinc oxide nanoparticles with gallium nitride.
  • Core decomposition using hydrogen flow at high temperature.
  • Transmission electron microscopy to observe nanoparticle-cell interactions.
  • Assessment of cellular damage and nanoparticle localization within endothelial cells.

Main Results:

  • Porcine aortic endothelial cells successfully internalized the gallium nitride-based nanoparticles.
  • Nanoparticles were observed within intracellular vesicles.
  • No signs of cellular damage were detected after nanoparticle exposure.
  • Demonstrated potential for using intracellular nanoparticles as guiding elements for cell manipulation.

Conclusions:

  • Gallium nitride-based nanoparticles exhibit excellent biocompatibility with endothelial cells.
  • These nanoparticles can be safely internalized by cells.
  • The study highlights the potential of these nanoparticles for controlled cell transportation and spatial distribution using external magnetic fields.