The metallic corrosion is a spontaneous process that causes damage in almost all sectors of human activity. Among the most affected structures stand out the pipes for oil transportation. The biocorrosion occurs due to the fixation of bacteria, release of metabolites and formation of biofilms that induce or accelerate the corrosion process. Among the groups of bacteria involved in the corrosion ...

We have found that novel pyridine oxide derivatives are inhibitors of a wide range of human immunodeficiency virus (HIV) type 1 (HIV-1) and HIV-2 strains in CEM cell cultures. Some of the compounds showed inhibitory activities against recombinant HIV-1 reverse transcriptase (RT), whereas others were totally inactive against this viral protein in vitro. Partial retention of anti-HIV-1 activity a...

Abstract The inability of metals to resist degradation as a result corrosion remains unique global problem that depend on different for daily operations. Therefore, knowing the appropriate method use is key ameliorate effect metals. Green inhibitors serve modern, cheaper and environmentally favorable retard effects corrosion. Drugs are which can reduce action without being hazardous environment...

Corrosion can be affected by flow differently depending on the mechanism governing the corrosion process. Two major cases can be distinguished: the effect of flow on corrosion when no surface films are present and the effect of flow on corrosion in the presence of surface films (precipitates, inhibitors, etc.). In the absence of films, the primary effect of flow on corrosion is through mass tra...

Polarized neutron reflectometry has been used to investigate the detailed adsorption behavior and corrosion inhibition mechanism of two surfactants on a nickel surface under acidic conditions. Both the corrosion of the nickel surface and the structure of the adsorbed surfactant layer could be monitored in situ by the use of different solvent contrasts. Layer thicknesses and roughnesses were eva...

This paper continues the analytical literature review on the theory and practice of metal protection by volatile corrosion inhibitors (VCI) supplemented by our own data. The principles and methods for fast estimation of VCI efficiency are reviewed.

The easy and scalable synthesis, biocompatibility, one-dimensionality, high aspect ratio, viability for surface modifications, the ability cargo-loading release make organic nanotubes ideal candidates smart coatings with slow controlled corrosion inhibitors anti-biofouling agents. wide-ranging applicability of as nanocarriers anti-corrosion is foreseen.

Abstract Corrosion is a complicated problem in everyday life. causes many losses because it reduces the life span of metal-based goods or buildings. One solution to use organic corrosion inhibitors. Organic inhibitors are an alternative choice they more environmentally friendly. Heteroatomic compounds containing nitrogen, oxygen, sulfur molecules such as those found MSG, papaya leaves and aloe ...

L. SMITH Controlling corrosion in production tubing is essential for maintaining production and for preventing loss of well control. Materials for use downhole have to meet criteria for corrosion resistance and also mechanical requirements. The potential corrosion rate can be estimated and the risks of sulphide stress corrosion cracking assessed on the basis of the anticipated environmental con...

With the phasing out of lead-bearing solders, electrically conductive adhesives (ECAs) have been identified as an environmentally friendly alternative to tin/lead (Sn/Pb) solders in electronics packaging applications. Compared to Sn/Pb solders, conductive adhesive technology offers numerous advantages. However, this new technology still has reliability limitations. Two critical limitations are ...