Dendritic Silica Particles with Well-Dispersed Ag
Nanoparticles for Robust Antireflective and Antibacterial Nanocoatings
on Polymeric Glass
Posted on 2018-09-25 - 15:04
Robust nanocoatings with both antireflective
(AR) and antibacterial
properties for transparent plastic substrates are not only significantly
attractive in science but also urgently needed in wide applications.
However, it is still a great challenge to realize the fabrication
of this kind of multifunctional nanocoatings on plastic/polymer substrates.
In this work, a series of single-particle-layered nanocoatings were
prepared by partially embedding dendritic fibrous nanosilica (DFNS)
with well-dispersed Ag nanoparticles (NPs) onto the surface of poly(methyl
methacrylate) (PMMA) polymeric glass via organic vapor treatment.
The optimal coated PMMA slide not only exhibits the enhanced transmittance
with the highest one of 94.5% but also shows excellent antibacterial
activity (at least killing 80% bacteria) toward both Gram-positive Staphylococcus aureus and Gram-negative Escherichia
coli. Moreover, both long-term ultrasonic processing and
pencil hardness tests proved strong adhesion of particles on PMMA
substrate due to partial embedding. This work provides an exploration
approach to construct the multifunctional nanocoatings on polymeric
substrates for potential applications in various optical devices and
daily touch plastic glass.
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Wang, Yulu; Wang, Yabin; Li, Xiaoyu; Li, Jianqiang; Su, Lei; Zhang, Xueji; et al. (2018). Dendritic Silica Particles with Well-Dispersed Ag
Nanoparticles for Robust Antireflective and Antibacterial Nanocoatings
on Polymeric Glass. ACS Publications. Collection. https://doi.org/10.1021/acssuschemeng.8b02617
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AUTHORS (7)
YW
Yulu Wang
YW
Yabin Wang
XL
Xiaoyu Li
JL
Jianqiang Li
LS
Lei Su
XZ
Xueji Zhang
XD
Xin Du