Preparation and characterization of antibacterial paper coated with sodium lignosulfonate stabilized ZnO nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 9753-9759 ◽  
Author(s):  
Bo Pang ◽  
Jipeng Yan ◽  
Lan Yao ◽  
Huan Liu ◽  
Jing Guan ◽  
...  
Keyword(s):  
Sodium Hydroxide ◽  
Zno Nanoparticles ◽  
Layer By Layer ◽  
Sodium Lignosulfonate ◽  
Stabilizing Agent ◽  
Cellulose Paper

The ZnO nanoparticles were synthesized using sodium lignosulfonate as a stabilizing agent and sodium hydroxide as a precipitation agent. The negatively charged ZnO nanoparticles were deposited onto cellulose paper through a layer-by-layer approach.

scholarly journals Whiter, brighter, and more stable cellulose paper coated with antibacterial carboxymethyl starch stabilized ZnO nanoparticles

2014 ◽  
Vol 2 (20) ◽  
pp. 3057-3064 ◽  
Author(s):  
Fei Cheng ◽  
Jonathan W. Betts ◽  
Stephen M. Kelly ◽  
David W. Wareham ◽  
Andreas Kornherr ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Zno Nanoparticles ◽  
Layer By Layer ◽  
Carboxymethyl Starch ◽  
Cellulose Paper ◽  
Coated Papers ◽  
Good Antibacterial Activity

A coating of CMS-stabilized ZnO nanoparticles has been deposited on a cellulose paper by a layer-by-layer approach. The coated papers show higher brightness and whiteness compared with blank paper. They also show good antibacterial activity against MRSA and A. baumannii.

Microstructural characterization of CoPtCr/Cr thin film disks by cross-section TEM and elongated probe micro-diffraction

1991 ◽  
Vol 49 ◽  
pp. 762-763
Author(s):  
M.A. Parker ◽  
K.E. Johnson ◽  
C. Hwang ◽  
A. Bermea
Keyword(s):  
Magnetic Recording ◽  
Electron Probe ◽  
Microstructural Characterization ◽  
Crystallographic Structure ◽  
Recording Media ◽  
Layer By Layer ◽  
Cross Sectional ◽  
New Techniques ◽  
Polished Side

We have reported the dependence of the magnetic and recording properties of CoPtCr recording media on the thickness of the Cr underlayer. It was inferred from XRD data that grain-to-grain epitaxy of the Cr with the CoPtCr was responsible for the interaction observed between these layers. However, no cross-sectional TEM (XTEM) work was performed to confirm this inference. In this paper, we report the application of new techniques for preparing XTEM specimens from actual magnetic recording disks, and for layer-by-layer micro-diffraction with an electron probe elongated parallel to the surface of the deposited structure which elucidate the effect of the crystallographic structure of the Cr on that of the CoPtCr.XTEM specimens were prepared from magnetic recording disks by modifying a technique used to prepare semiconductor specimens. After 3mm disks were prepared per the standard XTEM procedure, these disks were then lapped using a tripod polishing device. A grid with a single 1mmx2mm hole was then glued with M-bond 610 to the polished side of the disk.

Preparation and Characterization of Vanadium-Doped ZnO Nanoparticles for Environmental Application

2011 ◽  
Vol 11 (1) ◽  
pp. 681-685 ◽  
Author(s):  
Hankwon Chang ◽  
Jonian Nikolov ◽  
Sun-Kyung Kim ◽  
Hee Dong Jang ◽  
Seng Lim ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
Environmental Application ◽  
Doped Zno

scholarly journals Graphene Oxide Layer-by-Layer Films for Sensors and Devices

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1556
Author(s):  
Ivan C. C. Assunção ◽  
Susana Sério ◽  
Quirina Ferreira ◽  
Nykola C. Jones ◽  
Søren V. Hoffmann ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrical Properties ◽  
Vacuum Ultraviolet ◽  
Morphological Characterization ◽  
Linear Increase ◽  
Layer By Layer ◽  
Absorption Bands ◽  
Semiconductor Behavior ◽  
Vacuum Ultraviolet Spectroscopy

Layer-by-layer films of poly (allylamine hydrochloride) (PAH) and graphene oxide (GO) were characterized, looking at growth with the number of bilayers, morphology, and electrical properties. The PAH/GO films revealed a linear increase in absorbance with the increase in the number of deposited bilayers, allowing the determination that 10.7 ± 0.1 mg m−2 of GO is adsorbed per unit of area of each bilayer. GO absorption bands at 146, 210, 247 and 299 nm, assigned to π-π* and n-π* transitions in the aromatic ring (phenol) and of the carboxylic group, respectively, were characterized by vacuum ultraviolet spectroscopy. The morphological characterization of these films demonstrated that they are not completely uniform, with a bilayer thickness of 10.5 ± 0.7 nm. This study also revealed that the films are composed of GO and/or PAH/GO fibers and that GO is completely adsorbed on top of PAH. The electrical properties of the films reveal that PAH/GO films present a semiconductor behavior. In addition, a slight decrease in conduction was observed when films were prepared in the presence of visible light, likely due to the presence of oxygen and moisture that contributes to the damage of GO molecules.

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