Abstract
When nanoparticles (NPs) enter a biological environment, medium components, especially proteins, compete for binding to the NP’s surface, leading to development of a new interface, commonly referred to as the “protein corona.” This rich protein shell gives the NPs a biological identity that can be very different from their synthetic one, in terms of their chemical–physical properties. Understanding NP–protein interaction is crucial for both the bioapplications and safety of nanomaterials. The protein corona provides the primary contact to the cells and their receptors. It defines in vivo fate of the delivery systems, governing the stability, immunogenicity, circulation, clearance rates and organ biodistribution of the NPs. Given its importance, the application and the development of analytical methods to investigate the protein corona are crucial. This review gives an overview of chromatographic, electrophoretic, mass spectrometric and proteomic methods because these techniques have the advantage to be able to identify and quantify individual proteins adsorbed onto the corona. This capability opens up the possibility to exploit the protein corona for specific cell targeting.
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Abbreviations
- AET:
-
Aminoethanethiol
- BAM:
-
N-tert-Butylacrylamide
- BBB:
-
Blood–brain barrier
- CE:
-
Capillary electrophoresis
- CL:
-
Cationic liposome
- CID:
-
Collision-induced dissociation
- CuNPs:
-
Copper NPs
- DC-Chol:
-
3β-[N-(N′,N′-Dimethylaminoethane)-carbamoyl]-cholesterol
- DOPC:
-
Dioleoylphosphocholine
- DOPE:
-
Dioleoylphosphatidylethanolamine
- 1-DE:
-
One-dimensional gel electrophoresis
- 2-DE:
-
Two-dimensional gel electrophoresis
- FFFF:
-
Flow field-flow fractionation
- Hb:
-
Hemoglobin
- IEC:
-
Ion-exchange chromatography
- iTraq:
-
Isotope-coded tags
- LIF:
-
Laser-induced fluorescence
- MALDI-TOF:
-
Matrix-assisted laser desorption/ionization time-of-flight
- MS:
-
Mass spectrometry
- MudPIT:
-
Multidimensional protein identification technology
- NIPAM:
-
N-Isopropylacrylamide
- NP:
-
Nanoparticle
- PBCA:
-
Polyisobutylcyanoacrylate
- PHDCA:
-
Polyhexadecylcyanoacrylate
- PEG:
-
Polyethyleneglycol
- RPLC:
-
Reversed-phase liquid chromatography
- RS:
-
Raman spectroscopy
- SEC:
-
Size-exclusion chromatography
- SERS:
-
Surface-enhanced RS
- SPIONs:
-
Superparamagnetic iron oxide nanoparticles
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Capriotti, A.L., Caracciolo, G., Cavaliere, C. et al. Analytical Methods for Characterizing the Nanoparticle–Protein Corona. Chromatographia 77, 755–769 (2014). https://doi.org/10.1007/s10337-014-2677-x
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DOI: https://doi.org/10.1007/s10337-014-2677-x