scholarly journals Synthesis of Poly(methyl methacrylate-co-butyl acrylate)/Perfluorosilyl Methacrylate Core-Shell Nanoparticles: Novel Approach for Optimization of Coating Process

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1186 ◽  
Author(s):  
Jun-Won Kook ◽  
Yongsoo Kim ◽  
Kiseob Hwang ◽  
Jung Kim ◽  
Jun-Young Lee

In this study, the coating order of two monomers in the shell polymerization process of core-shell nanoparticles was altered to facilitate easy coating and optimize the properties of the coated surface to simplify the additional coating formulation process. To obtain a glass transition temperature suitable for coating, a core was synthesized by the copolymerization of an acryl monomer. A perfluoro monomer and silane monomer were additionally added to synthesize nanoparticles exhibiting both water–oil repellency and anchoring properties. In order to realize various surface properties, the nanoparticles underwent surface modification and cellulose fiber was introduced. Through the various data described in this text, the surface properties improved with the order of the introduction of the two monomers.

Author(s):  
Jun-Won Kook ◽  
Yongsoo Kim ◽  
Kiseob Hwang ◽  
Jung Hyun Kim ◽  
Jun-Young Lee

In this study, the coating order of two monomers in the shell polymerization process of core–shell nanoparticles was altered to facilitate easy coating and optimize the properties of the coated surface to simplify the additional coating formulation process. To obtain a glass transition temperature suitable for coating, a core was synthesized by the copolymerization of an acryl monomer. A perfluoro monomer and silane monomer were additionally added to synthesize nanoparticles exhibiting both water–oil repellency and anchoring properties. In order to realize various surface properties, the nanoparticles underwent surface modification and cellulose fiber was introduced. Through the various data described in this text, the surface properties improved with the order of introduction of the two monomers.


Nanoscale ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 4519-4529
Author(s):  
J. Mohapatra ◽  
J. Elkins ◽  
M. Xing ◽  
D. Guragain ◽  
Sanjay R. Mishra ◽  
...  

Self-assembly of nanoparticles into ordered patterns is a novel approach to build up new consolidated materials with desired collective physical properties.


2008 ◽  
Vol 8 (5) ◽  
pp. 2488-2491 ◽  
Author(s):  
Jing-Liang Li ◽  
Xiang-Yang Liu

Selenium-polypyrrole core–shell nanoparticles are fabricated by an in-situ polymerization process and functionalized with transferrin for targeting and imaging of human cervical cancer cells. The shell thickness and chemical composition of the as-synthesized particles can be manipulated by controlling the precursor concentration. The presence of the polymer layer can greatly increase the thermal stability of the selenium nanoparticles. The presence of transferrin molecules on the surface of the core–shell nanoparticles can significantly enhance their cellular uptake. The tranferrin-conjugated core–shell nanoparticles can be potentially used for the targeting and imaging of cancer cells.


2018 ◽  
Vol 5 (8) ◽  
pp. 180633 ◽  
Author(s):  
Jaya Verma ◽  
Arpita Bhattacharya

In the present study, we developed an antifungal coating formulation using silica, titania and silica–titania core–shell nanoparticles individually. The idea behind the synthesis of core–shell nanoparticles was to use the mechanical strength of silica and the antimicrobial property of TiO 2 together. These nanoparticles were characterized by dynamic light scattering, transmission electron microscopy, scanning electron microscopy, EDX, FTIR and X-ray diffraction. Silica nanoparticles of 92 nm were prepared by the sol–gel process, while TiO 2 nanoparticles and nano-core–shells were prepared through the peptization process with a size of 77 and 144 nm separately. The antifungal effect of the prepared nanoparticles was observed in potato dextrose agar media using the concentration of nanoparticles at 1 wt%. These nanoparticles were incorporated in two types of binder, polyurethane and polyacrylic, with the same concentration of nanoparticles. Coatings were applied on tiles, dried and tested against pathogenic fungus, and fungus growth reduction was observed up to 7–10 days. Coatings developed with TiO 2 nanoparticles have shown good growth reduction of pathogenic fungus, but coatings formulated with silica–titania core–shell nanoparticles killed the fungus fusarium completely and have shown around 90% growth reduction for acremonium species also.


2019 ◽  
Vol 10 (7) ◽  
pp. 2171-2178 ◽  
Author(s):  
Sarai García-García ◽  
Alberto López-Ortega ◽  
Yongping Zheng ◽  
Yifan Nie ◽  
Kyeongjae Cho ◽  
...  

An appropriate atomic layer deposition precursor, as a function of the ligand of the metal source, can unveil a novel approach to concertedly coat and reduce γ-Fe2O3 nanoparticles to form Fe3O4/TiO2 core/shell nanoparticles.


RSC Advances ◽  
2016 ◽  
Vol 6 (102) ◽  
pp. 99752-99763 ◽  
Author(s):  
Anne-Larissa Kampmann ◽  
Tobias Grabe ◽  
Carolin Jaworski ◽  
Ralf Weberskirch

Surface-functional nanoparticles have been fabricated by utilizing bifunctional poly(2-oxazoline) macromonomers as surfactants in a microemulsion process.


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