Mussel-inspired polyelectrolyte multilayer for reinforcing the interfacial mechanical stability of plasmonic microstructures

In this paper, mussel-inspired polyelectrolyte was prepared through grafting catechol-contained molecules onto the backbone of the polyelectrolyte, and then introduced between the plasmonic microstructures and substrates to reinforce the mechanical stability of the microstructures. The plasmonic mic...

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Bibliographic Details
Published in:Surface & coatings technology 2018-01, Vol.334, p.305-311
Main Authors: Jiao, Yonghua, Luo, Chengsheng, Chen, Dan, Zhang, Xuemin, Li, Yunong, Wang, Tieqiang, Fu, Yu
Format: Article
Language:English
Subjects:
Body fluids
Catechol
Interface stability
Mechanical stability
Microstructure
Mollusks
Morphology
Multilayers
Mussel-inspired
Optical properties
Plasmonic sensing
Polyelectrolytes
Rubbing
Sensitivity analysis
Studies
Substrates
Ultrasonic processing
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Summary:In this paper, mussel-inspired polyelectrolyte was prepared through grafting catechol-contained molecules onto the backbone of the polyelectrolyte, and then introduced between the plasmonic microstructures and substrates to reinforce the mechanical stability of the microstructures. The plasmonic microstructures with mussel-inspired adhesive multilayers show greatly improved mechanical stability against both rubbing and ultrasonic treatment without significant alteration of the original morphology and optical property. Additionally, label-free sensing could also be achieved with reasonable sensitivity. We believe that such stabilizing strategy based on mussel-inspired polyelectrolyte will show great potential towards practical applications of plasmonic microstructures, even in the presence of water or body fluid. [Display omitted] •Mussel-inspired polymer is prepared by grafting catechol group onto polymer chain.•Mussel-inspired multilayer is used to improve the interfacial mechanical stability.•Plasmonic Sensing performance is well preserved after the stability is reinforced.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2017.11.055