Journal ArticleDOI
Effects of Cell Culture Media on the Dynamic Formation of Protein−Nanoparticle Complexes and Influence on the Cellular Response
Gabriele Maiorano,Stefania Sabella,Barbara Sorce,Virgilio Brunetti,Maria Ada Malvindi,Roberto Cingolani,Pier Paolo Pompa +6 more
TLDR
The results show that, beyond an in-depth NPs characterization before cellular experiments, a detailed understanding of the effects elicited by cell culture media on NPs is crucial for standardized nanotoxicology tests.Abstract:
The development of appropriate in vitro protocols to assess the potential toxicity of the ever expanding range of nanoparticles represents a challenging issue, because of the rapid changes of their intrinsic physicochemical properties (size, shape, reactivity, surface area, etc.) upon dispersion in biological fluids. Dynamic formation of protein coating around nanoparticles is a key molecular event, which may strongly impact the biological response in nanotoxicological tests. In this work, by using citrate-capped gold nanoparticles (AuNPs) of different sizes as a model, we show, by several spectroscopic techniques (dynamic light scattering, UV−visible, plasmon resonance light scattering), that proteins−NP interactions are differently mediated by two widely used cellular media (i.e., Dulbecco Modified Eagle’s medium (DMEM) and Roswell Park Memorial Institute medium (RPMI), supplemented with fetal bovine serum). We found that, while DMEM elicits the formation of a large time-dependent protein corona, RPMI s...read more
Citations
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Journal ArticleDOI
Biomolecular coronas provide the biological identity of nanosized materials
TL;DR: The basic concept of the nanoparticle corona is reviewed and its structure and composition is highlighted, and how the properties of the corona may be linked to its biological impacts are highlighted.
Journal ArticleDOI
DLS and zeta potential - What they are and what they are not?
TL;DR: This review tries to address the issue while providing the fundamental principles of these techniques, summarizing the core mathematical principles and offering practical guidelines on tackling commonly encountered problems while running DLS and ZP measurements.
Journal ArticleDOI
Gold nanoparticles in biomedical applications: recent advances and perspectives
TL;DR: This critical review is focused on the application of GNP conjugates to biomedical diagnostics and analytics, photothermal and photodynamic therapies, and delivery of target molecules.
Journal ArticleDOI
Cellular uptake of nanoparticles: journey inside the cell.
Shahed Behzadi,Vahid Serpooshan,Wei Tao,Majd A. Hamaly,Mahmoud Y. Alkawareek,Erik C. Dreaden,Dennis Brown,Alaaldin M. Alkilany,Omid C. Farokhzad,Omid C. Farokhzad,Morteza Mahmoudi,Morteza Mahmoudi +11 more
TL;DR: This review provides an objective and comprehensive account of the cellular uptake of NPs and the underlying parameters controlling the nano-cellular interactions, along with the available analytical techniques to follow and track these processes.
Journal ArticleDOI
Understanding and controlling the interaction of nanomaterials with proteins in a physiological environment
Carl Walkey,Warren C. W. Chan +1 more
TL;DR: The formation of the protein corona, its structure and composition, and its influence on the physiological response are discussed, and an 'adsorbome' of 125 plasma proteins that are known to associate with nanomaterials are presented.
References
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Journal ArticleDOI
The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment
TL;DR: In this paper, the authors describe recent progress in the theory of nanoparticle optical properties, particularly methods for solving Maxwell's equations for light scattering from particles of arbitrary shape in a complex environment.
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Toxic Potential of Materials at the Nanolevel
TL;DR: The establishment of principles and test procedures to ensure safe manufacture and use of nanomaterials in the marketplace is urgently required and achievable.
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Controlled nucleation for the regulation of the particle size in monodisperse gold suspensions
TL;DR: In this article, a series of monodisperse suspensions of the same chemical composition but of rather different particle sizes was used to study particle size dependent phenomena, such as Brownian motion, light scattering, sedimentation and electrophoresis of small particles.
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A study of the nucleation and growth processes in the synthesis of colloidal gold
TL;DR: In this paper, a preliminary survey with the electron microscope of various preparations of colloidal gold, a study was made of the process of nucleation and growth in gold colloids, and it was shown that nucleating agents may be identified with reducing agents which form a mixed polymer with chlorauric ion before the reduction to the nucleus takes place.
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Understanding biophysicochemical interactions at the nano–bio interface
Andre E. Nel,Lutz Mädler,Darrell Velegol,Tian Xia,Eric M.V. Hoek,Ponisseril Somasundaran,Fred Klaessig,Vince Castranova,Mike Thompson +8 more
TL;DR: Probing the various interfaces of nanoparticle/biological interfaces allows the development of predictive relationships between structure and activity that are determined by nanomaterial properties such as size, shape, surface chemistry, roughness and surface coatings.