Cited by 2,607Nanoparticle-Based Drug DeliveryAdvanced Drug Delivery SystemsRNA Interference and Gene Delivery

Effects of particle size and surface charge on cellular uptake and biodistribution of polymeric nanoparticles

He, Chunbai, Hu, Yiping, Yin, Lichen, Tang, Cui, Yin, Chunhua·2010·Biomaterials

Abstract

To elucidate the effects of particle size and surface charge on cellular uptake and biodistribution of polymeric nanoparticles (NPs), rhodamine B (RhB) labeled carboxymethyl chitosan grafted NPs (RhB-CMCNP) and chitosan hydrochloride grafted NPs (RhB-CHNP) were developed as the model negatively and positively charged polymeric NPs, respectively. These NPs owned well defined particle sizes (150-500 nm) and Zeta potentials (-40 mV - +35 mV). FITC labeled protamine sulfate (FITC-PS) loaded RhB-CMCNP and camptothecin (CPT) loaded RhB-CHNP with high encapsulation efficiency were prepared. The fluorescence stability in plasma and towards I(-) was investigated, and the result indicated it was sufficient for qualitative and quantitative analysis. NPs with high surface charge and large particle size were phagocytized more efficiently by murine macrophage. Slight particle size and surface charge differences and different cell lines had significant implications in the cellular uptake of NPs, and various mechanisms were involved in the uptake process. In vivo biodistribution suggested that NPs with slight negative charges and particle size of 150 nm were tended to accumulate in tumor more efficiently. These results could serve as a guideline in the rational design of drug nanocarriers with maximized therapeutic efficacy and predictable in vivo properties, in which the control of particle size and surface charge was of significance.

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Crossref · 10.1016/j.biomaterials.2010.01.065

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Authors
He, C., Hu, Y., Yin, L., Tang, C., & Yin, C.
Affiliations
Fudan University (CN)
Venue
Biomaterials
Publisher
Elsevier BV
Published
2010-05
Volume
31
Issue
13
Pages
3657-3666
ISSN
0142-9612 (ISSN-L)
OpenAlex
W2078057254
Cited by
2,607
References
36
Citations by year
2026: 120 · 2025: 181 · 2024: 157 · 2023: 189 · 2022: 176 · 2021: 198 · 2020: 234 · 2019: 216 · 2018: 227 · 2017: 208 · 2016: 191 · 2015: 161 · 2014: 126 · 2013: 101 · 2012: 74
FWCI
29.13
Type
journal article
Language
en
Open access
closed
Locations
  • Biomaterials (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (30772656)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
polymeric nanoparticles, particle size, surface charge, cellular uptake, tissue distribution, chitosan, carboxymethyl chitosan, chitosan hydrochloride, protamine sulfate, camptothecin, rhodamine B, zeta potential, macrophage phagocytosis, tumor accumulation, drug nanocarriers, nanoparticle drug delivery
MeSH terms
Animals, Cell Line, Humans, Macrophages, Neoplasms, Experimental, Particle Size, Polymers, Surface Properties, Tissue Distribution, Mice, Nanoparticles

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