The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Preventing Protein Adsorption and Macrophage Uptake of Gold Nanoparticles via a Hydrophobic Shield
Open accessAbstract
Polyethylene glycol (PEG) surface coatings are widely used to render stealth properties to nanoparticles in biological applications. There is abundant literature on the benefits of PEG coatings and their ability to reduce protein adsorption, to diminish nonspecific interactions with cells, and to improve pharmacokinetics, but very little discussion of the limitations of PEG coatings. Here, we show that physiological concentrations of cysteine and cystine can displace methoxy-PEG-thiol molecules from the gold nanoparticle (GNP) surface that leads to protein adsorption and cell uptake in macrophages within 24 h. Furthermore, we address this problem by incorporating an alkyl linker between the PEG and the thiol moieties that provides a hydrophobic shield layer between the gold surface and the hydrophilic outer PEG layer. The mPEG-alkyl-thiol coating greatly reduces protein adsorption on GNPs and their macrophage uptake. This has important implications for the design of GNP for biological systems.
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Cites
Renal clearance of quantum dots
Soo Choi, H., Liu, W., Misra, P., Tanaka, E., Zimmer, J. P., Itty Ipe, B., Bawendi, M. G., & Frangioni, J. V. (2007) · Nature Biotechnology · doi:10.1038/nbt1340 · Cited by 4,476
Poly(ethylene glycol) in Drug Delivery: Pros and Cons as Well as Potential Alternatives
Knop, K., Hoogenboom, R., Fischer, D., & Schubert, U. S. (2010) · Angewandte Chemie International Edition · doi:10.1002/anie.200902672 · Cited by 3,533
Nanoparticle Size and Surface Chemistry Determine Serum Protein Adsorption and Macrophage Uptake
Walkey, C. D., Olsen, J. B., Guo, H., Emili, A., & Chan, W. C. W. (2012) · Journal of the American Chemical Society · doi:10.1021/ja2084338 · Cited by 1,926
Walkey, C. D., & Chan, W. C. W. (2012) · Chem. Soc. Rev. · doi:10.1039/c1cs15233e · Cited by 1,758
Time Evolution of the Nanoparticle Protein Corona
Casals, E., Pfaller, T., Duschl, A., Oostingh, G. J., & Puntes, V. (2010) · ACS Nano · doi:10.1021/nn901372t · Cited by 1,211
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Nanoparticle colloidal stability in cell culture media and impact on cellular interactions
Moore, T. L., Rodriguez-Lorenzo, L., Hirsch, V., Balog, S., Urban, D., Jud, C., Rothen-Rutishauser, B., Lattuada, M., & Petri-Fink, A. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00487f · Cited by 1,082
Biodegradable Polymer Nanogels for Drug/Nucleic Acid Delivery
Li, Y., Maciel, D., Rodrigues, J., Shi, X., & Tomás, H. (2015) · Chemical Reviews · doi:10.1021/cr500131f · Cited by 478
Recent advances and future prospects of iron oxide nanoparticles in biomedicine and diagnostics
Vallabani, N. V. S., & Singh, S. (2018) · 3 Biotech · doi:10.1007/s13205-018-1286-z · Cited by 322
Effects of engineered nanoparticles on the innate immune system
Liu, Y., Hardie, J., Zhang, X., & Rotello, V. M. (2017) · Seminars in Immunology · doi:10.1016/j.smim.2017.09.011 · Cited by 315
Huang, J., Li, Y., Orza, A., Lu, Q., Guo, P., Wang, L., Yang, L., & Mao, H. (2016) · Advanced Functional Materials · doi:10.1002/adfm.201504185 · Cited by 292
Metadata
- Authors
- Larson, T. A., Joshi, P. P., & Sokolov, K.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-09-25
- Volume
- 6
- Issue
- 10
- Pages
- 9182-9190
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2038282755
- Cited by
- 217
- References
- 5
- FWCI
- 7.53
- Type
- journal article
- Language
- en
- Open access
- green
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