Erica Quagliarini, Francesca Giulimondi, Serena Renzi, Andrea Pirrottina, Alessandra Zingoni, Nicholas Carboni, Daniela Pozzi, Giulio Caracciolo
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引用次数: 0
Abstract
Understanding interactions between nanomaterials and biomolecules is essential for advancing biomedical nanotechnologies. This study investigates how double-stranded DNA of varying sizes affects the protein corona (PC) surrounding Graphene Oxide (GO) nanosheets in DNA-supplemented human plasma. The findings reveal that DNA plays a pivotal role in modulating the PC composition through dynamic competition governed by factors like surface charge, affinity, and DNA fragment size. At lower DNA concentrations, competition between DNA and proteins for binding sites on GO leads to a corona predominantly composed of proteins, with some DNA molecules also bound. However, as the DNA concentration increases beyond a threshold, a shift occurs. DNA increasingly outcompetes proteins for binding sites, resulting in a two-component corona enriched with both DNA and proteins. Notably, the proportion of DNA within the corona progressively increases with rising DNA concentration, while the protein content decreases. This dynamic interplay between DNA and proteins has significant biological implications. A monotonic increase in Toll-like receptor 9 (TLR9) activation is observed as the DNA content within the corona increases. As the corona composition and its influence on cellular responses are crucial, this study emphasizes the relevance of exploring competition at the bio-nano interface for the advancement of these applications.
期刊介绍:
Advanced Materials Interfaces publishes top-level research on interface technologies and effects. Considering any interface formed between solids, liquids, and gases, the journal ensures an interdisciplinary blend of physics, chemistry, materials science, and life sciences. Advanced Materials Interfaces was launched in 2014 and received an Impact Factor of 4.834 in 2018.
The scope of Advanced Materials Interfaces is dedicated to interfaces and surfaces that play an essential role in virtually all materials and devices. Physics, chemistry, materials science and life sciences blend to encourage new, cross-pollinating ideas, which will drive forward our understanding of the processes at the interface.
Advanced Materials Interfaces covers all topics in interface-related research:
Oil / water separation,
Applications of nanostructured materials,
2D materials and heterostructures,
Surfaces and interfaces in organic electronic devices,
Catalysis and membranes,
Self-assembly and nanopatterned surfaces,
Composite and coating materials,
Biointerfaces for technical and medical applications.
Advanced Materials Interfaces provides a forum for topics on surface and interface science with a wide choice of formats: Reviews, Full Papers, and Communications, as well as Progress Reports and Research News.