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Cited by 267

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Controlled Surface Modification with Poly(ethylene)glycol Enhances Diffusion of PLGA Nanoparticles in Human Cervical Mucus

Open access
Cu, Yen, Saltzman, W. Mark·2009·Molecular Pharmaceutics

Abstract

Drug delivery to mucosal epithelia is severely limited by the mucus gel, which is a physical diffusion barrier as well as an enzymatic barrier in some sites. Loading of drug into polymer particles can protect drugs from degradation and enhance their stability. To improve efficacy of nanoparticulate drug carriers, it has been speculated that polymers such as poly(ethylene)glycol (PEG) incorporated on the particle surface will enhance transport in mucus. In the present study, we demonstrate the direct influence of PEG on surface properties of poly(lactic-co-glycolic)acid (PLGA) nanoparticles (d = 170 +/- 57 nm). PEG of various molecular weights (MW = 2, 5, 10 kDa) were incorporated at a range of densities from 5-100% on the particle surface. Our results indicate PEG addition improves dispersion, neutralize charge, and enhance particle diffusion in cervical mucus in a manner strongly dependent on polymer MW and density. Diffusion of PEGylated particles was 3-10x higher than that of unmodified PLGA particles. These findings improve the understanding of, and confirm a possible direction for, the rational design of effective carriers for mucosal drug/vaccine delivery.

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Crossref · 10.1021/mp8001254

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Metadata

Authors
Cu, Y., & Saltzman, W. M.
Venue
Molecular Pharmaceutics
Published
2008-11-20
Volume
6
Issue
1
Pages
173-181
ISSN
  • 1543-8384 (ISSN-L)
  • 1543-8392
OpenAlex
W2055454300
Cited by
267
References
7
FWCI
6.90
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Controlled Surface Modification with Poly(ethylene)glycol Enhances Diffusion of PLGA Nanoparticles in Human Cervical Mucus. https://app.cochat.ai/papers/10.1021/mp8001254
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Cu, Y., & Saltzman, W. M. (2009). Controlled Surface Modification with Poly(ethylene)glycol Enhances Diffusion of PLGA Nanoparticles in Human Cervical Mucus. Molecular Pharmaceutics. https://doi.org/10.1021/mp8001254

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.