ArticleACS applied materials & interfaces2024
Nanoetched Stainless Steel Architecture Enhances Cell Uptake of Biomacromolecules and Alters Protein Corona Abundancy.
Article in ACS applied materials & interfaces, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nanotexture on biocompatible surfaces promotes cell adhesion and proliferation. High aspect ratio nanoachitecture serves as an ideal interface between implant materials and host cells that is well-suited for localized therapeutic delivery. Despite this potential, nanotextured surfaces have not been widely applied for biomacromolecule delivery. Here, we employed a low-cost, industrially relevant nanoetching process to modify the surface of biocompatible stainless steel 316 (SS316L), creating nanotextured SS316L (NT-SS316L) as a material for intracellular biomacromolecule delivery. As biomacromolecule cargoes are adsorbed to the steel and ultimately would be used in protein-rich environments, we performed serum protein corona analysis on unmodified SS316L and NT-SS316L using tandem mass spectrometry. We observed an increase in proteins associated with cell adhesion on the surface of NT-SS316L compared to that of SS316L, supporting literature reports of enhanced adhesion on nanotextured materials. For delivery to adherent cells, a "hard corona" of model biomacromolecule cargoes including superfolder green fluorescent protein (sfGFP) charge variants, cytochrome c, and siRNA was adsorbed on NT-SS316L to assess delivery. Nanotextured surfaces enhanced cellular biomacromolecule uptake and delivered cytosolic-functional proteins and nucleic acids through energy-dependent endocytosis. Collectively, these findings indicate that NT-SS316L holds potential as a surface modification for implants to achieve localized drug delivery for a variety of biomedical applications.
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