scholarly journals Recent Advances in Computational Design of Organic Materials for Corrosion Protection of Steel in Aqueous Media

10.5772/57245 ◽  
2014 ◽  
Author(s):  
Ime Bassey
Keyword(s):  
Corrosion Protection ◽  
Organic Materials ◽  
Aqueous Media ◽  
Computational Design ◽  
Recent Advances

scholarly journals Efficient encapsulation of proteins with random copolymers

2018 ◽  
Vol 115 (26) ◽  
pp. 6578-6583 ◽  
Author(s):  
Trung Dac Nguyen ◽  
Baofu Qiao ◽  
Monica Olvera de la Cruz
Keyword(s):  
Enzymatic Activity ◽  
Average Distance ◽  
Aqueous Media ◽  
Adsorbed Layer ◽  
Computational Design ◽  
Polymer Chains ◽  
Disordered Proteins ◽  
Random Copolymers ◽  
Adsorption Sites

Membraneless organelles are aggregates of disordered proteins that form spontaneously to promote specific cellular functions in vivo. The possibility of synthesizing membraneless organelles out of cells will therefore enable fabrication of protein-based materials with functions inherent to biological matter. Since random copolymers contain various compositions and sequences of solvophobic and solvophilic groups, they are expected to function in nonbiological media similarly to a set of disordered proteins in membraneless organelles. Interestingly, the internal environment of these organelles has been noted to behave more like an organic solvent than like water. Therefore, an adsorbed layer of random copolymers that mimics the function of disordered proteins could, in principle, protect and enhance the proteins’ enzymatic activity even in organic solvents, which are ideal when the products and/or the reactants have limited solubility in aqueous media. Here, we demonstrate via multiscale simulations that random copolymers efficiently incorporate proteins into different solvents with the potential to optimize their enzymatic activity. We investigate the key factors that govern the ability of random copolymers to encapsulate proteins, including the adsorption energy, copolymer average composition, and solvent selectivity. The adsorbed polymer chains have remarkably similar sequences, indicating that the proteins are able to select certain sequences that best reduce their exposure to the solvent. We also find that the protein surface coverage decreases when the fluctuation in the average distance between the protein adsorption sites increases. The results herein set the stage for computational design of random copolymers for stabilizing and delivering proteins across multiple media.

Recent advances of metal-organic frameworks in corrosion protection: from synthesis to applications

2021 ◽  
pp. 132823
Author(s):  
Li Jiang ◽  
Yanmao Dong ◽  
Yan Yuan ◽  
Xing Zhou ◽  
Yingrui Liu ◽  
...  
Keyword(s):  
Corrosion Protection ◽  
Metal Organic Frameworks ◽  
Recent Advances ◽  
Metal Organic

ChemInform Abstract: Recent Advances in C-H Bond Formation in Aqueous Media: A Mechanistic Perspective

ChemInform ◽  
2008 ◽  
Vol 39 (23) ◽  
Author(s):  
V. Tamara Perchyonok ◽  
Ioannis N. Lykakis ◽  
Kellie L. Tuck
Keyword(s):  
Bond Formation ◽  
Aqueous Media ◽  
Recent Advances

Recent advances in clean-up strategies of waters polluted with sulfonamide antibiotics: a review of sorbents and related properties

2014 ◽  
Vol 78 (5) ◽  
pp. 1115-1140 ◽  
Author(s):  
A. Martucci ◽  
I. Braschi ◽  
L. Marchese ◽  
S. Quartieri
Keyword(s):  
Bacterial Resistance ◽  
Aqueous Media ◽  
Sulfa Drugs ◽  
Sulfonamide Antibiotics ◽  
Physical Methods ◽  
Recent Advances ◽  
Porous Adsorbent ◽  
Adsorbent Materials

AbstractSeveral strategies are available to reduce or eliminate recalcitrant sulfonamide antibiotics (sulfa drugs) from aqueous media. These contaminants are bioactive and ubiquitous pollutants of soils and watercourses and are known to induce bacterial resistance. Here the biological, chemical and physical methods developed over the last 5 years to decontaminate waters polluted with sulfa drugs are reviewed with special attention to procedures that make use of porous adsorbent materials and their applicability to real waters.

Recent advances in purely organic phosphorescent materials

2015 ◽  
Vol 51 (55) ◽  
pp. 10988-11003 ◽  
Author(s):  
Sanjoy Mukherjee ◽  
Pakkirisamy Thilagar
Keyword(s):  
Organic Materials ◽  
Recent Advances ◽  
Recent Advancement

A review of the recent advancement in the development of organic materials with efficient phosphorescent emission features is presented.

Evolution of TSA/TSZ coatings: a review on recent advances on cold gas spraying for steel corrosion protection

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Vicente Albaladejo-Fuentes ◽  
Ana María Martos ◽  
Javier Sánchez ◽  
Irene Garcia-Cano
Keyword(s):  
Corrosion Protection ◽  
Thermal Spraying ◽  
Steel Corrosion ◽  
Cost Effective ◽  
Relevant Information ◽  
Flame Spraying ◽  
Arc Spraying ◽  
Recent Advances ◽  
Cold Gas

Abstract For decades, zinc- and aluminum-based coatings have been considered the best material choice for steel corrosion protection since they may act as a protective barrier and show sacrificial behavior. These coatings are often prepared by galvanizing methods. However, their application by thermal spraying techniques (wire arc spraying, WAS and flame spraying, FS) has been proved as a cost-effective solution for the preparation of long-term corrosion-resistant coatings. This review selectively collects the most relevant information about the application and performance of these two techniques on Zn and Al coatings for corrosion protection. The report summarizes separately the Zn and Al data from the effect of the spraying parameters on coating properties on the one hand, and the results shown in long-term studies carried out in relevant and real exposure conditions, on the other. Finally, this review includes a description and comparison of the most recent advances found out with the novel and emerging spray technique, cold gas spray, for the deposition of Zn and Al coatings for corrosion protection purposes. Nevertheless, the use of this technique has not reached the stage of wide industrial application yet and therefore its long-term performance is unknown, which suggests that there is still room for further development.

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