Prof. Armen Trchounian

Yerevan State University, Armenia

Email: Trchounian@ysu.am

Qualifications

1990 D. Sc., Biophysics, USSR HCC, Moscow, Russia

1982 Ph.D., (Biophysics) Yerevan State University

1978 M.Sc., Division of Biophysics, Yerevan State University

Publications (selected)

1. Abrahamyan V., Poladyan A., Vassilian A., Trchounian A. (2015) Hydrogen production by Escherichia coli during glucose fermentation: effects of oxidative and reductive routes using  the strain lacked of hydrogen oxidizing hydrogenases 1 (hya) and 2 (hyb) // // Int. J. Hydrogen Energy 40, 7459-7464.
2. Avakyan S. V., Kovalenok V. V., Savinykh V. P., Ivanchenkov A. S., Voronin N. A., Trchounian A., Baranova L. A. (2015) The role of a space patrol of solar X-ray radiation in the Provisioning of the safety of orbital and interplanetary manned space flights // Acta Astronautica  109, 194-202.
3. Blbulyan S., Trchounian A. (2015) Impact of membrane-associated hydrogenases on the FoF1-ATPase in Escherichia coli during glycerol and mixed carbon fermentation: atpase activity and its inhibition by N,N’-dicyclohexylcarbodiimide in the mutants lacking hydrogenases // Arch. Biochem. Biophys. 579, 67-72.
4. Ginovyan M., Keryan A., Bazukyan I., Ghazaryan P.,  Trchounian A. (2015) The large scale antibacterial, antifungal and anti-phage efficiency of Petamcin-A: New multicomponent preparation for skin diseases treatment // Ann. Clin. Microbiol. Anrimicrob. 14, 28.
5. Ghazaryan A., Blbulyan S., Poladyan A., Trchounian A. (2015) Redox stress in geobacilli from geothermal springs: phenomenon and membrane-associated response mechanisms // Bioelectrochemistry 105, 1-6.
6. Sargsyan H., Gabrielyan L., Hakobyan L., Trchounian A. (2015) Light-dark duration alternation effects on Rhodobacter sphaeroides growth, membrane properties and bio-hydrogen production in batch culture // Int. J. Hydrogen Energy 40, 4084-4091.
7. Torgomyan H., Trchounian A. (2015) The enhanced effects of antibiotics irradiated of extremely high frequency electromagnetic field on Escherichia coli growth properties // Cell Biochem. Biophys. 71, 419-424
8. Trchounian K., Trchounian A. (2015) Escherichia coli hydrogen gas production from glycerol: effects of external formate // Renewable Energy 83, 345-351.
9. Trchounian K., Abrahamyan V., Poladyan A., Trchounian A. (2015) Escherichia coli growth and hydrogen production in batch culture upon formate alone and with glycerol co-fermentation at different pHs // Int. J. Hydrogen Energy 40,
10. Vardanyan Z., Trchounian A. (2015) Cu(II), Fe(III) and Mn(II) combinations as environment stress factors have distinguishing effects on Enterococcus hirae // J. Environm. Sci. 28, 95-100.
11. Du P., Viswanatham U.M., Khairan K., Buric T.,  Saidu N.E.B., Xu Z., Han B., Bazukyan I., Trchounian A., Hannemann F., Bernhard I., Burkholz T., Diesel B., Kiemer A.K., Schäfer K.H., Montenarh M.,  Kirsch G., Jacob C. (2014) Synthesis of amphiphilic, chalcogen-based redox modulators with in vitro cytotoxic activity against cancer cells, macrophages and microbes // Med. Chem. Comm. 5, 25-31.
12. Gabrielyan L., Sargsyan H., Hakobyan L., Trchounian A. (2014) Regulation of hydrogen photoproduction in Rhodobacter sphaeroides batch culture by external oxidizers and reducers // Appl. Energy 131, 20-25.
13. Sargsyan H., Gabrielyan L., Trchounian A. (2014) Concentration-dependent effects of metronidazole, inhibiting nitrogenase, on hydrogen photoproduction and proton-translocating ATPase activity of Rhodobacter sphaeroides // Int. J. Hydrogen Energy  39, 100-106.
14. Trchounian K., Sargsyan H., Trchounian A. (2014) Hydrogen production by Escherichia coli depends on glucose concentration and its combination with glycerol at different pHs // Int. J. Hydrogen Energy 39, 6419-6423.
15. Trchounian K., Trchounian A (2014) Different role of focA and focB encoding formate channels for hydrogen production by Escherichia coli during glucose or glycerol fermentation // Int. J. Hydrogen Energy 39, 20987-20991.
16. Trchounian K., Trchounian A (2014) Hydrogen producing activity by Escherichia coli hydrogenase 4 (hyf) depends on glucose concentration // Int. J. Hydrogen Energy 39, 16914-16918.
17. Kirakosyan G., Torgomyan H., Malakyan M., Bajinyan S., Trchounian A.  (2013) Protective effects of some amino acids synthesized derivatives and their chelates on Escherichia coli under X-ray irradiation // Ind. J. Biochem. Biophys. 50, 289-295.
18. Poladyan A., Avagyan A., Vassilian A., Trchounian A. (2013) Oxidative and reductive routes of glycerol and glucose fermentation by Escherichia coli batch cultures and their regulation by oxidizing and reducing reagents at different pHs // Curr. Microbiol. 66, 49-55.
19. Poladyan A., Trchounian K., Sawers G., Trchounian A. (2013) Hydrogen-oxidizing hydrogenases 1 and 2 of Escherichia coli regulate the onset of hydrogen evolution and ATPase activity, respectively, during glucose fermentation at alkaline pH // FEMS Microbiol. Lett. 348, 143-148.
20. Soghomonyan D., Trchounian A. (2013) Comparable effects of low-intensity electromagnetic irradiation at the frequency of 51.8 GHz and 53 GHz and antibiotic ceftazidime on Lactobacillus acidophilus growth and survival // Cell Biochem. Biophys.  67, 829-835.
21. Torgomyan H., Hovnanyan K.,  Trchounian A. (2013) Escherichia coli growth changes by the mediated effects after low-intensity electromagnetic irradiation of extremely high frequencies // Cell Biochem. Biophys.  65, 445-454.
22. Trchounian K., Blbulyan S., Trchounian A. (2013) Hydrogenase activity and proton-motive force generation by Escherichia coli during glycerol fermentation // J. Bioenerg. Biomembr. 45, 253-260.
23. Trchounian K., Soboh B., Sawers R.G.,  Trchounian A. (2013) Contribution of hydrogenase 2 to stationary phase H2 production by Escherichia coli during fermentation of glycerol // Cell Biochem. Biophys.  66, 103-108.
24. Trchounian K., Trchounian A. (2013) Escherichia coli hydrogenase 4 (hyf) and hydrogenase 2 (hyb) contribution in H2 production during mixed carbon (glucose and glycerol) fermentation at pH 7.5 and pH 5.5 // Int. J. Hydrogen Energy 38, 3919-3927.
25. Trchounian K., Trchounian A. (2013) Escherichia coli multiple [Ni-Fe]-hydrogenases are sensitive to osmotic stress during glycerol fermentation but at different pHs // FEBS Lett. 587, 3562-3566.