Inuence of Coloring Agents on the Properties of Polymeric Coating Systems

2016 ◽  
pp. 165-190
Keyword(s):  
Polymeric Coating ◽  
Coloring Agents

Mathematical and algorithmic support of a model of drying a band with polymeric coating.

2018 ◽  
Vol 6 (87) ◽  
pp. 19-27 ◽  
Author(s):  
V. M. Oskolkov ◽  
T. O. Petrova ◽  
I. A. Varfolomeyev ◽  
L. N. Vinogradova ◽  
E. V. Ershov
Keyword(s):  
Polymeric Coating ◽  
Algorithmic Support

Novel Electro Polymerization Method to Synthesized Anti-corrosion Coated Layer on Stainless Steel Surface from (N-Benzothiazolyl Maleamic Acid) and Study its Biological Activity

2018 ◽  
Vol 9 (3) ◽  
Author(s):  
Muna I Khalaf ◽  
Khulood A Saleh ◽  
Khalil S Khalil
Keyword(s):  
Stainless Steel ◽  
Chemical Structure ◽  
Inhibition Efficiency ◽  
Steel Plate ◽  
Polymeric Coating ◽  
Stainless Steel Surface ◽  
Plate Electrode ◽  
Before And After ◽  
Maleamic Acid ◽  
Polymerization Method

Electro polymerization of N-benzothiazolyl maleamic acid (NBM) was carried out on stainless steel plate electrode in a protic medium of monomer aqueous solution using electrochemical oxidation procedure in electrochemical cell.Spectroscopic characterization techniques were investigated to obtain information about the chemical structure of polymer. The anti-corrosion action of polymer was investigated on stainless steel by electrochemical polarization method. In addition, the effect of adding nanomaterial (TiO2, ZnO (bulk-nano)) to monomer solution on the corrosion behavior of stainless steel was investigated. The results obtained showed that the corrosion rate of S-steel increased with temperature increase from 293K to 323K and the values of inhibition efficiency by coating polymer increase with nanomaterial addition. Apparent energies of activation have been calculated for the corrosion process of S-steel in acidic medium before and after polymeric coating. Furthermore were studied the effect of the preparing polymer on some strain of bacteria.

Clickable Cellulosic Surfaces for Peptide-Based Bioassays

2019 ◽  
Author(s):  
Maria Teresa Odinolfi ◽  
Alessandro Romanato ◽  
Greta Bergamaschi ◽  
Alessandro Strada ◽  
Laura Sola ◽  
...  
Keyword(s):  
Target Recognition ◽  
Real Case ◽  
Polymeric Coating ◽  
Healthy Controls ◽  
Nonspecific Adsorption ◽  
Cellulosic Materials ◽  
Cellulose Substrates

The use of peptides in paper-based analytics is a highly appealing field, yet it suffers from severe limitations. This is mostly due to the loss of effective target recognition properties of this relatively small bioprobes upon nonspecific adsorption onto cellulose substrates. Here, we address this issue by introducing a simple polymer-based strategy to obtain clickable cellulosic surfaces, that we exploited for the chemoselective bioconjugation of peptide bioprobes. Our method largely outperformed standard adsorption-based immobilization strategy in a challenging, real-case immunoassay, namely the diagnostic discrimination of Zika+ individuals from healthy controls. Of note, the clickable polymeric coating not only allows efficient peptides bioconjugation, but it provides favorable anti-fouling properties to the cellulosic support. We envisage our strategy to broaden the repertoire of cellulosic materials manipulation and promote a renewed interest in peptide-based paper bioassays.

Clickable Cellulosic Surfaces for Peptide-Based Bioassays

2019 ◽  
Author(s):  
Maria Teresa Odinolfi ◽  
Alessandro Romanato ◽  
Greta Bergamaschi ◽  
Alessandro Strada ◽  
Laura Sola ◽  
...  
Keyword(s):  
Target Recognition ◽  
Real Case ◽  
Polymeric Coating ◽  
Healthy Controls ◽  
Nonspecific Adsorption ◽  
Cellulosic Materials ◽  
Cellulose Substrates

The use of peptides in paper-based analytics is a highly appealing field, yet it suffers from severe limitations. This is mostly due to the loss of effective target recognition properties of this relatively small bioprobes upon nonspecific adsorption onto cellulose substrates. Here, we address this issue by introducing a simple polymer-based strategy to obtain clickable cellulosic surfaces, that we exploited for the chemoselective bioconjugation of peptide bioprobes. Our method largely outperformed standard adsorption-based immobilization strategy in a challenging, real-case immunoassay, namely the diagnostic discrimination of Zika+ individuals from healthy controls. Of note, the clickable polymeric coating not only allows efficient peptides bioconjugation, but it provides favorable anti-fouling properties to the cellulosic support. We envisage our strategy to broaden the repertoire of cellulosic materials manipulation and promote a renewed interest in peptide-based paper bioassays.

Fabrication Technologies and Applications of Graphene-based co-polymeric Nano-composites: its challenges and Future works

2019 ◽  
Vol 09 ◽  
Author(s):  
Pratik Chhapia ◽  
Harshad Patel
Keyword(s):  
Review Paper ◽  
Polymeric Coating ◽  
Nano Composites ◽  
Future Prospects ◽  
Electrical And Optical Properties ◽  
In Situ Techniques ◽  
Surface Areas ◽  
Ink Jet ◽  
Enhanced Conductivity

: Graphene based co-polymeric Nano-composites explored and trending in various applications as ascribing to its enhanced conductivity and controlled modification with wide specific surface areas. With the number of advantages of co-polymeric coating on Graphene or Graphene sheets and their derivatives, Graphene based co-polymeric Nano-composites fabricated by various techniques (deposition, ink jet, electro spinning, spin coating, in-situ techniques, etc.) and different conducting co-polymers show its exceptional chemical, mechanical, electrical and optical properties. Therefore, in the today’s world with greater quantities of various properties of co-polymer with Graphene based Nano-composites with enhanced stability, selectivity and sensitivity have been formed. In this review paper, we have particularly focused on recent advancing in fabrication of different technologies with the help of Graphene based co-polymeric Nano-composites and its various trending and future applications. Finally, on the personal standpoint; the key challenges of Graphene based co-polymeric Nano-composites are mentioned in hope to shed a light on their potential future prospects.

scholarly journals On-Site Raman Spectroscopic Study of Beads from the Necropolis of Vohemar, Northern Madagascar (>13th C.)

Heritage ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 524-540
Author(s):  
Philippe Colomban ◽  
Gulsu Simsek Franci ◽  
Farahnaz Koleini
Keyword(s):  
Western Indian Ocean ◽  
Soda Lime ◽  
Transition Metal Ions ◽  
Soda Lime Glass ◽  
Late 19Th Century ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study ◽  
Maritime Networks ◽  
Coloring Agents ◽  
The Village

In the late 19th century, ancient tombs were discovered near the village of Vohemar at the northeastern point of Madagascar, and subsequent excavations during the French period (1896–1945) revealed the presence of a major necropolis active from ~13th to 18th centuries. Some artefacts (Chinese ceramic shards and glass trade beads) recovered from these excavations was sent to France and now in part belong to the collection of the Musée d’Histoire Naturelle, Nimes. Carnelian and glass trade beads were analyzed with a mobile Raman spectrometer, which identified different materials (soda-lime glass, quartz/moganite, carnelian/citrine, chalcedony) and coloring agents (Naples yellow, cassiterite, amber chromophore, transition metal ions, etc.). The results are compared with those obtained on beads excavated at different sites of Southern Africa and at Mayotte Island, and it appears that (most of) the beads come from southern Asia and Europe. The results confirmed the role that northern Madagascar played within the maritime networks of the Western Indian Ocean during the 15th–16th century.

scholarly journals NIR-responsive MXene nanobelts for wound healing

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Lin Jin ◽  
Xiaoqing Guo ◽  
Di Gao ◽  
Cui Wu ◽  
Bin Hu ◽  
...  
Keyword(s):  
Wound Healing ◽  
Vitamin E ◽  
Surface Area ◽  
Near Infrared ◽  
Coating Layer ◽  
High Surface ◽  
High Surface Area ◽  
High Mass ◽  
Polymeric Coating ◽  
Mass Loading

AbstractEffectively achieving wound healing is a great challenge. Herein, we facilely prepared temperature-responsive MXene nanobelt fibers (T-RMFs) carrying vitamin E with a controllable release ability for wound healing. These T-RMFs were composed of MXene nanosheets spread along polyacrylonitrile and polyvinylpyrrolidone composite nanobelts together with a thermosensitive PAAV- coating layer. The high mass loading and high surface area of the MXene nanosheets endow the T-RMFs with excellent photothermal properties. The temperature could be easily controlled by near-infrared (NIR) irradiation exposure, and then the thermoresponsive polymeric coating layer relaxed the interface to dissolve vitamin E and promote vitamin E release. The T-RMFs demonstrated excellent biocompatibility and wound-healing functions in cellular and animal tests. The facile method, high mass loading, high surface area, excellent wound-healing functions, interesting nanosheet/nanobelt structure, mass production potential, and NIR responsive properties of these T-RMFs indicate the great potential of our nanobelts for wound healing, tissue engineering, and much broader application areas. This facile nanosheet/nanobelt preparation strategy paves a new way for nanomaterial fabrication and applications.

scholarly journals Long-lasting renewable antibacterial porous polymeric coatings enable titanium biomaterials to prevent and treat peri-implant infection

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Shuyi Wu ◽  
Jianmeng Xu ◽  
Leiyan Zou ◽  
Shulu Luo ◽  
Run Yao ◽  
...  
Keyword(s):  
Dental Implant ◽  
Pathogenic Bacteria ◽  
Titanium Surface ◽  
Polymeric Coating ◽  
Antibacterial Efficacy ◽  
Polymeric Coatings ◽  
Implant Infection ◽  
Titanium Surfaces

AbstractPeri-implant infection is one of the biggest threats to the success of dental implant. Existing coatings on titanium surfaces exhibit rapid decrease in antibacterial efficacy, which is difficult to promisingly prevent peri-implant infection. Herein, we report an N-halamine polymeric coating on titanium surface that simultaneously has long-lasting renewable antibacterial efficacy with good stability and biocompatibility. Our coating is powerfully biocidal against both main pathogenic bacteria of peri-implant infection and complex bacteria from peri-implantitis patients. More importantly, its antibacterial efficacy can persist for a long term (e.g., 12~16 weeks) in vitro, in animal model, and even in human oral cavity, which generally covers the whole formation process of osseointegrated interface. Furthermore, after consumption, it can regain its antibacterial ability by facile rechlorination, highlighting a valuable concept of renewable antibacterial coating in dental implant. These findings indicate an appealing application prospect for prevention and treatment of peri-implant infection.

New polymeric coating compositions

1989 ◽  
Vol 18 (10) ◽  
pp. 4-12
Author(s):  
Nadia M. Thha ◽  
M. Moustafa ◽  
N. Abd El‐Khalik ◽  
A.M. Naser
Keyword(s):  
Polymeric Coating
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