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Surface Modification by Combination of Dip-Pen Nanolithography and Soft Lithography for Reduction of Bacterial Adhesion
Joint Authors
Freitas, Sidónio C.
Pelaez-Vargas, Alejandro
Arango-Santander, Santiago
García, Claudia
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-21
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Dip-pen nanolithography (DPN) and soft lithography are techniques suitable to modify the surface of biomaterials.
Modified surfaces might play a role in modulating cells and reducing bacterial adhesion and biofilm formation.
The main objective of this study was threefold: first, to create patterns at microscale on model surfaces using DPN; second, to duplicate and transfer these patterns to a real biomaterial surface using a microstamping technique; and finally, to assess bacterial adhesion to these developed patterned surfaces using the cariogenic species Streptococcus mutans.
DPN was used with a polymeric adhesive to create dot patterns on model surfaces.
Elastomeric polydimethylsiloxane was used to duplicate the patterns and silica sol to transfer them to the medical grade stainless steel 316L surface by microstamping.
Optical microscopy and atomic force microscopy (AFM) were used to characterize the patterns.
S.
mutans adhesion was assessed by colony-forming units (CFUs), MTT viability assay, and scanning electron microscopy (SEM).
DPN allowed creating microarrays from 1 to 5 µm in diameter on model surfaces that were successfully transferred to the stainless steel 316L surface via microstamping.
A significant reduction up to one order of magnitude in bacterial adhesion to micropatterned surfaces was observed.
The presented experimental approach may be used to create patterns at microscale on a surface and transfer them to other surfaces of interest.
A reduction in bacterial adhesion to patterned surfaces might have a major impact since adhesion is a key step in biofilm formation and development of biomaterial-related infections.
American Psychological Association (APA)
Arango-Santander, Santiago& Pelaez-Vargas, Alejandro& Freitas, Sidónio C.& García, Claudia. 2018. Surface Modification by Combination of Dip-Pen Nanolithography and Soft Lithography for Reduction of Bacterial Adhesion. Journal of Nanotechnology،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1195661
Modern Language Association (MLA)
Arango-Santander, Santiago…[et al.]. Surface Modification by Combination of Dip-Pen Nanolithography and Soft Lithography for Reduction of Bacterial Adhesion. Journal of Nanotechnology No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1195661
American Medical Association (AMA)
Arango-Santander, Santiago& Pelaez-Vargas, Alejandro& Freitas, Sidónio C.& García, Claudia. Surface Modification by Combination of Dip-Pen Nanolithography and Soft Lithography for Reduction of Bacterial Adhesion. Journal of Nanotechnology. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1195661
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1195661