The Formation of Hydrogen Peroxide on Fresh Metal Surfaces

Grunberg, L.

doi:10.1088/0370-1301/66/3/301

Cited by 49 publications

(18 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Most reports suggest that virus inactivation is likely to result from the generation of hydrogen peroxide (H 2 O 2 ) and/or reactive oxygen species (ROS) by redox cycling between the different copper species (9,11,16,28,36). These molecules are known to damage critical biological molecules, such as DNA (2,27,34,35), proteins (13,16,17), and phospholipids (23,31,33).…”

mentioning

confidence: 99%

Differential Bacteriophage Mortality on Exposure to Copper

Dennehy

2011

Appl Environ Microbiol

View full text Add to dashboard Cite

Many studies report that copper can be used to control microbial growth, including that of viruses. We determined the rates of copper-mediated inactivation for a wide range of bacteriophages. We used two methods to test the effect of copper on bacteriophage survival. One method involved placing small volumes of bacteriophage lysate on copper and stainless steel coupons. Following exposure, metal coupons were rinsed with lysogeny broth, and the resulting fluid was serially diluted and plated on agar with the corresponding bacterial host. The second method involved adding copper sulfate (CuSO 4 ) to bacteriophage lysates to a final concentration of 5 mM. Aliquots were removed from the mixture, serially diluted, and plated with the appropriate bacterial host. Significant mortality was observed among the double-stranded RNA (dsRNA) bacteriophages ⌽6 and ⌽8, the single-stranded RNA (ssRNA) bacteriophage PP7, the ssDNA bacteriophage ⌽X174, and the dsDNA bacteriophage PM2. However, the dsDNA bacteriophages PRD1, T4, and were relatively unaffected by copper. Interestingly, lipid-containing bacteriophages were most susceptible to copper toxicity. In addition, in the first experimental method, the pattern of bacteriophage ⌽6 survival over time showed a plateau in mortality after lysates dried out. This finding suggests that copper's effect on bacteriophage is mediated by the presence of water.

show abstract

mentioning

confidence: 99%

Differential Bacteriophage Mortality on Exposure to Copper

Dennehy

2011

Appl Environ Microbiol

View full text Add to dashboard Cite

show abstract

“…chain reaction between radical and double bond continues to form high molecular weight polymer, because the cleaved bond is left with a radical. It has been known that electron emission with abrasion of metal (Kramer effect) causes ‘mechanical activation’. 28 In some cases, the emission intensity varies with the increase/decrease in friction coefficient. 29 The processes mentioned above make clear of what mechanical activation is, by combining electron emission, negative-ion-radical and active sites on the surface.…”

Section: Active Sites Formationmentioning

confidence: 99%

Mechanochemistry as a key to understand the mechanisms of boundary lubrication, mechanolysis and gas evolution during friction

Hiratsuka

Kajdas

2013

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

Mechanical energy alters chemical reactions. Although the mechanisms of mechanochemical reactions are not understood well, they have been utilized for alloying, polishing, lubrication and so on. On the other hand, tribochemical reactions which involve the interactions between frictional materials and the environment accelerate the decomposition of solid and surrounding molecules. It results in the emission of small particles and gases, bringing problems to environment and health. Mechanochemical and tribochemical reactions are often studied in different fields and in different societies. Even if similar reactions from each field are named differently, the same physics and chemistry operate in both reactions. Therefore, this study aimed at better understanding of some tribochemical reactions from the mechanochemical point of view. The main mechanism is proposed to be the emission of electrons, which is enhanced by the energy input onto the surface and surrounding molecules due to the breakage of chemical bonds and chemisorption of environmental molecules.

show abstract

“…However, a thick sheet of polymer about a yard square would contain only 2 esu of charge from earlier contact on the one side, or double that from both. 21 If the energy gap is 0.1 ev, the charge (while still a true volume charge) will be concentrated close to the surface, decreasing by 99 percent in between 10-2 an.d 10-3 cm. If electrical breakdown were not to occur, thIS would mean that the charge density within the volume near the surface would be some 178 esu per cm 2 of surface.…”

Section: Before Separation From the Metalmentioning

confidence: 99%

“…Therefore it is possible to consider high charge densities and inner potentials,22 and apply the condition that the inner 21 The charge per cm 2 of surface contained in the plastic from one metallic contact is Q=efo" ndx=noexo. Values of no and Xo are given in Table I, reference 2. 22 With even somewhat extreme values of the constants the inner potential will not be above that at the interface by more than 0.7-1.0 ev.…”

Section: Edge Correctionsmentioning

confidence: 99%

Diffusion, Static Charges, and the Conduction of Electricity in Nonmetallic Solids by a Single Charge Carrier. I. Electric Charges in Plastics and Insulating Materials

Skinner¹

1955

Journal of Applied Physics

View full text Add to dashboard Cite

The dynamic equilibrium of space charge in insulators such as ceramics, molecular crystals, or high polymers, is considered from the thermodynamic point of view with quantum-mechanical boundary conditions. The treatment constitutes the opposite extreme from the usual ohmic; conduction equations; in the first paper, only the zero-current equilibrium of charge is considered. Applications are"made to the observed charging of high polymers during molding... * Initially

show abstract

The Formation of Hydrogen Peroxide on Fresh Metal Surfaces

Cited by 49 publications

References 19 publications

Differential Bacteriophage Mortality on Exposure to Copper

Differential Bacteriophage Mortality on Exposure to Copper

Mechanochemistry as a key to understand the mechanisms of boundary lubrication, mechanolysis and gas evolution during friction

Diffusion, Static Charges, and the Conduction of Electricity in Nonmetallic Solids by a Single Charge Carrier. I. Electric Charges in Plastics and Insulating Materials

Contact Info

Product

Resources

About