scholarly journals The release of iron from horse spleen ferritin to 1,10-phenanthroline

1974 ◽  
Vol 137 (1) ◽  
pp. 67-70 ◽  
Author(s):  
Terence G. Hoy ◽  
Pauline M. Harrison ◽  
Mohammad Shabbir ◽  
Ian G. Macara

The rate of release of iron to 1,10-phenanthroline from ferritin fractions of different iron contents has been studied. The experimental results could be interpreted by a simple hypothetical model of the shape of the hydrous ferric oxide micelle at different iron contents, and reasonable correlation obtained between the rate of release and the calculated micelle surface areas. Initial rates of release did not correlate significantly with protein concentration.

1974 ◽  
Vol 139 (3) ◽  
pp. 603-607 ◽  
Author(s):  
Terence G. Hoy ◽  
Pauline M. Harrison ◽  
Mohammad Shabbir

The uptake and subsequent release of iron by apoferritin and ferritin was studied by using labelled iron (59Fe). The experimental results are consistent with predictions arising from a model system developed in the interpretation of previous experiments. In this model, uptake and release of ferritin iron is controlled by the available surface area of the small crystalline particles of hydrous ferric oxide found within the ferritin molecule. Evidence is also presented for the exchange of Fe3+ ions among the various cation sites within these crystallites.


Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 265
Author(s):  
Ameer Suhel ◽  
Norwazan Abdul Rahim ◽  
Mohd Rosdzimin Abdul Rahman ◽  
Khairol Amali Bin Ahmad ◽  
Yew Heng Teoh ◽  
...  

In recent years, industries have been investing to develop a potential alternative fuel to substitute the depleting fossil fuels which emit noxious emissions. Present work investigated the effect of ferrous ferric oxide nano-additive on performance and emission parameters of compression ignition engine fuelled with chicken fat methyl ester blends. The nano-additive was included with various methyl ester blends at different ppm of 50, 100, and 150 through the ultrasonication process. Probe sonicator was utilized for nano-fuel preparation to inhibit the formation of agglomeration of nanoparticles in base fuel. Experimental results revealed that the addition of 100 ppm dosage of ferrous ferric oxide nanoparticles in blends significantly improves the combustion performance and substantially decrease the pernicious emissions of the engine. It is also found from an experimental results analysis that brake thermal efficiency (BTE) improved by 4.84%, a reduction in brake specific fuel consumption (BSFC) by 10.44%, brake specific energy consumption (BSEC) by 9.44%, exhaust gas temperature (EGT) by 19.47%, carbon monoxides (CO) by 53.22%, unburned hydrocarbon (UHC) by 21.73%, nitrogen oxides (NOx) by 15.39%, and smoke by 14.73% for the nano-fuel B20FFO100 blend. By seeing of analysis, it is concluded that the doping of ferrous ferric oxide nano-additive in chicken fat methyl ester blends shows an overall development in engine characteristics.


2006 ◽  
Vol 40 (19) ◽  
pp. 5950-5955 ◽  
Author(s):  
Kate M. Campbell ◽  
Davin Malasarn ◽  
Chad W. Saltikov ◽  
Dianne K. Newman ◽  
Janet G. Hering

2007 ◽  
Vol 71 (17) ◽  
pp. 4206-4220 ◽  
Author(s):  
Juraj Majzlan ◽  
Bronislava Lalinská ◽  
Martin Chovan ◽  
L’ubomír Jurkovič ◽  
Stanislava Milovská ◽  
...  

2010 ◽  
Vol 275 (3-4) ◽  
pp. 262-271 ◽  
Author(s):  
Thomas J. Reich ◽  
Soumya Das ◽  
Carla M. Koretsky ◽  
Tracy J. Lund ◽  
Christopher J. Landry

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