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- W2896887487 abstract "Abstract Soft lithography and Dip-Pen Nanolithography (DPN) are techniques that have been used to modify the surface of biomaterials. Modified surfaces play a role in reducing bacterial adhesion and biofilm formation. Also, titanium dioxide has been reported as an antibacterial substance due to its photocatalytic effect. This work aimed at creating patterns on model surfaces using DPN and soft lithography combined with titanium dioxide to create functional antibacterial micropatterned surfaces, which were tested against Streptococcus mutans . DPN was used to create a master pattern onto a model surface and microstamping was performed to duplicate and transfer such patterns to medical-grade stainless steel 316L using a suspension of TiO 2 . Modified SS316L plates were subjected to UVA black light as photocatalytic activator. Patterns were characterized by atomic force microscopy and biologically evaluated using S. mutans . A significant reduction of up to 60% in bacterial adhesion to TiO 2 -coated and -micropatterned surfaces was observed. Moreover, both TiO 2 surfaces reduced the viability of adhered bacteria after UV exposure. TiO 2 micropatterned demonstrated a synergic effect between physical and chemical modification against S. mutans . This dual effect was enhanced by increasing TiO 2 concentration. This novel approach may be a promising alternative to reduce bacterial adhesion to surfaces." @default.
- W2896887487 created "2018-10-26" @default.
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- W2896887487 date "2018-10-25" @default.
- W2896887487 modified "2023-10-10" @default.
- W2896887487 title "A novel approach to create an antibacterial surface using titanium dioxide and a combination of dip-pen nanolithography and soft lithography" @default.
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- W2896887487 doi "https://doi.org/10.1038/s41598-018-34198-w" @default.
- W2896887487 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6202409" @default.
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