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Curr Med Chem. 2018;25(35):4553-4586. doi: 10.2174/0929867325666180601101859.

Coating Matters: Review on Colloidal Stability of Nanoparticles with Biocompatible Coatings in Biological Media, Living Cells and Organisms.

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Department of Nanostructured Materials, Leibniz-Institut fur Polymerforschung Dresden, Dresden, Germany.
Physical Chemistry of Polymer Materials, Technische Universität Dresden, D-01062 Dresden, Germany.
Department of Physical Chemistry II, University of Bayreuth, 95447 Bayreuth, Germany.
Institute of Building Materials (IfB), ETH Zurich, 8093 Zurich, Switzerland.
Swiss Wood Solutions AG, Stefano- Franscini-Platz 3, 8093, Zurich, Switzerland.


Within the last two decades, the field of nanomedicine has not developed as successfully as has widely been hoped for. The main reason for this is the immense complexity of the biological systems, including the physico-chemical properties of the biological fluids as well as the biochemistry and the physiology of living systems. The nanoparticles' physicochemical properties are also highly important. These differ profoundly from those of freshly synthesized particles when applied in biological/living systems as recent research in this field reveals. The physico-chemical properties of nanoparticles are predefined by their structural and functional design (core and coating material) and are highly affected by their interaction with the environment (temperature, pH, salt, proteins, cells). Since the coating material is the first part of the particle to come in contact with the environment, it does not only provide biocompatibility, but also defines the behavior (e.g. colloidal stability) and the fate (degradation, excretion, accumulation) of nanoparticles in the living systems. Hence, the coating matters, particularly for a nanoparticle system for biomedical applications, which has to fulfill its task in the complex environment of biological fluids, cells and organisms. In this review, we evaluate the performance of different coating materials for nanoparticles concerning their ability to provide colloidal stability in biological media and living systems.


Nanoparticles; biological media; biopolymers; coating materials; colloidal stability; polymeric coatings; protein corona.

[Indexed for MEDLINE]

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