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National Proceedings:
 
1. Fariba Dashtestani and Hedayatollah Ghourchian, Superoxide dismutase activity of silver nanoparticles, Seminar on Sensor Science and Technology, 5th Nov., 2015, Sharif University of Technology, Tehran, Iran. 2015.
2. Mohammad Behnam Rad, Hedayatollah Ghourchian, CuO-GO based nano-c0mposite as mimetic enzyme for glucose detection, Seminar on Sensor Science and Technology, 5th Nov., 2015, Sharif University of Technology, Tehran, Iran, 2015.
3. Mohammad Behnam Rad, Hedayatollah Ghourchian, Nonenzymatic glucose detection based on copper oxide palladium/CNT nanocomposite , 11th annual Electrochemistry Seminar of Iran, Tarbiat Modarres University, 18-19, Nov. 2015.
4. Fatemeh Hakimian, Hedayatollah Ghourchian, Azam Sadat Hashemi, Detection of mi RNA-155 by an optical nano aptasensor for breast cancer screening, 13th Conference on Biophysical Chemistry, 26-27 May, 2015 Mohaghegh Ardabili University, Ardabil, IR Iran.
5. Hesam Sepasi Tehrani, Hedayatollah Ghourchian, AliAkbar Moosavi Movahedi, Effect of PEGylation of biological activity and structural stability of bovine liver catalase, 13th Conference on Biophysical Chemistry, 26-27 May, 2015 Mohaghegh Ardabili University, Ardabil, IR Iran.
6. Rahele Torabi, Hedayatollah Ghourchian Novel DNA functinalized calcium phosphate nanoparticles for reducing the insulin resistance, 13th Conference on Biophysical Chemistry, 26-27 May, 2015 Mohaghegh Ardabili University, Ardabil, IR Iran.
7. Mostafa Shourian, Hedayatollah Ghourchian, Mahdi Boutorabi, Functionalizing the Gold Nano-particles by Biotin and Luminol, 13th Conference on Biophysical Chemistry, 26-27 May, 2015 Mohaghegh Ardabili University, Ardabil, IR Iran.
8. Hedayatollah Ghourchian, Cysteine modified electrodes for monitoring of protein electron transferring, 13th Conference on Biophysical Chemistry, 26-27 May, 2015 Mohaghegh Ardabili University, Ardabil, IR Iran.
9. Fariba Dashtestani and Hedayatollah Ghourchian, Apoferritin encapsulated copper complex as mimic superoxide dismutase, 13th Conference on Biophysical Chemistry, 26-27 May, 2015 Mohaghegh Ardabili University, Ardabil, IR Iran.
10. Mohammad Behnam Rad, Hedayatollah Ghourchian, Copper oxide based nanocomposite as mimetic enzyme for glucose detection, 13th Conference on Biophysical Chemistry, 26-27 May, 2015 Mohaghegh Ardabili University, Ardabil, IR Iran.
11. Marzieh Azizi, Hedayatollah Ghourchian, Fariba Dashtestani, Fatemeh Yazdian, Silver-albumin nanoparticles: structure and anti breast cancer function, 13th Conference on Biophysical Chemistry, 26-27 May, 2015 Mohaghegh Ardabili University, Ardabil, IR Iran.
12. Azizi M., Ghourchian H., Yazdian F., Dashtestani F., Anticancer and antioxidant properties og AgNPs-BSA, 15th ICHEC, Iranian National Congress of Chemichal Engineering, 17-19 Feb.  2015, University of Tehran, IR Iran.
13. Mostafa Shourian, Leila Shahriary, Hedayatollah Ghourchian, A.A. Athawale, Glucose Biosensor by Usage Graphene Oxide-Multiwalled Carbon Nanotube Hybrids by Microwave Irradiation Modified Glassy Carbon Electrode, 9th Iranian Annual Seminar of Electrochemistry 4 , 5 December 2013 University of Tarbiat Modares, Tehran, Iran 
14. H. Naserimoghadam, H. Ghourchian and A. Divsalar, The investigation of electron transfer of glucose Oxidase at graphene and graphene-cysteine modified electrode, 9th Iranian Annual Seminar of Electrochemistry 4 , 5 December 2013 University of Tarbiat Modares, Tehran, Iran
15. Farideh Gouranlou, Hedayatollah Ghourchian, Novel composition for anode and cathode in biofuel cell, 9th Iranian Annual Seminar of Electrochemistry; 4 , 5 December 2013 University of Tarbiat Modares, Tehran, Iran
16. Leila Mahrokh , Hedayatollah Ghourchian, Saeed Mirdamadi, Electron transferring of Shewanella sp. bacteria in a microbial fuel cell, The second conference on hydrogen and fuel cell, May 2-3 2012, Khajeh Nasir Toosi University of Technology, Tehran, Iran
17. H. Sepassi-Tehrani*, H. Ghourchian and A.A. Moosavi-Movahedi, Functional and structural stability of catalase by proline as a compatible osmolyte,  10th Iran Biophysical Chemistry Conference, 22-23 February 2011, Islamic Azad University, Jahrom Branch, Jahrom, Iran, J. Iran. Chem. Soc., Vol. 8, Suppl. 2, February 2011, pp. A13. 
18. S. Sajjadi and H. Ghourchian, Determination of thermodynamic parameters for choline oxidase electron transfer process,  10th Iran Biophysical Chemistry Conference, 22-23 February 2011, Islamic Azad University, Jahrom Branch, Jahrom, Iran, J. Iran. Chem. Soc., Vol. 8, Suppl. 2, February 2011, pp. A32. 
19. R. Amjadi and H. Ghourchian, UV-visible and circular dichorism study of nitrite interaction with human hemoglobin,  10th Iran Biophysical Chemistry Conference, 22-23 February 2011, Islamic Azad University, Jahrom Branch, Jahrom, Iran, J. Iran. Chem. Soc., Vol. 8, Suppl. 2, February 2011, pp. A29. 
20. H. Ghourchian, Methods for direct electrochemistry of enzymes,  10th Iran Biophysical Chemistry Conference, 22-23 February 2011, Islamic Azad University, Jahrom Branch, Jahrom, Iran, J. Iran. Chem. Soc., Vol. 8, Suppl. 2, February 2011, pp. A2. 
21. Hedayatollah Ghourchian, Parvaneh Rahimi, Hossain-Ali Rafiee-Pour, Electrochemical and Electrocatalytic Properties of Chemically Modified Tyrosinase on Glassy Carbon Electrode, The 9th Iranian Biennial Electrochemistry Conference, 2-4 Bahman, 1389, P. 263, Yazd University, Iran.
22. H. Faridnouri, H. Ghourchian, Electrochemical and Electrocatalytic Properties of Chemically Modified Tyrosinase on Glassy Carbon Electrode, The 9th Iranian Biennial Electrochemistry Conference, 2-4 Bahman, 1389, P. 263, Yazd University, Iran. 
23. Aghdas banaei, Khadijeh Eskandari and Hedayatollah Ghourchian, Immobilization of human hemoglubi on magnetic nanoparticle modified gold electrode and its driect electrochemistry, 1st National Conference on Nanoscience and Nanotechnology, 16-18 Feb. 2011, Yazd Payam Nour University, Yazd, Iran.
24. Khadijeh Eskandari and Hedayatollah Ghourchian, Electrochemical glucose biosensor based on gold coated magnetic nanoparticles and investigation of nanoparticle effect on glucose oxidase, 1st National Conference on Nanoscience and Nanotechnology, 16-18 Feb. 2011, Yazd Payam Nour University, Yazd, Iran.
25. Hedayatollah Ghourchian, A biocopmatible nanocomposite for electrochemical biosensors, 1st National Conference on Nanoscience and Nanotechnology, 16-18 Feb. 2011, Yazd Payam Nour University, Yazd, Iran.
26. Faeze Hamidi Malayeri and Hedayatollah Ghourchian, Toluidine blue O removal from aqueous solution by magnetic carbon nanotubes, 1st National Conference on Nanoscience and Nanotechnology, P. 412, 16-18 Feb. 2011, Yazd Payam Nour University, Yazd, Iran.
27. Mahmoud Reza Sohrabi, Faeze Hamidi Malayeri and Hedayatollah Ghourchian, Organic dye removal from aqueous solution by magnetic carbon nanotubes, 17th Iranian Seminar of Analytical Chemistry, P 120, 12-14 Sept. 2010 (21-23 Shahrivar 1389) Kashan University.
28. S.A. Dehdast, H.Rafiaipour, M Shabani and H. Ghourchian, Ethanol biosensor based on the ADH immobilized on CNTs adsorbed on methylene green nano-layer, 9th Iran Biophysical Chemistry Conference, Tehran, Tarbiat Modares University, 24-25 February 2010, Journal of Iranian Chemical Society, Vol. 7, Suppl. 1, Feb. 2010, P. S64, Abstract N. 147
29. Jaleh Khanifar, Alireza Ahmadi, Hedayatollah Ghourchian, Reza Haji Hosaini, Determination of amino acids extracted from the single cell protein produced by treated wheat straw, 9th Iran Biophysical Chemistry Conference, Tehran, Tarbiat Modares University, 24-25 February 2010, Journal of Iranian Chemical Society, Vol. 7, Suppl. 1, Feb. 2010, P. S40, Abstract N. 91
30. M. Shourian, H. Tavakoli, H. Ghourchian, M.M. Modarres Mosalla, Detection of gamma rays emmited by Co60 using a modified HRP based biosensor, 9th Iran Biophysical Chemistry Conference, Tehran, Tarbiat Modares University, 24-25 February 2010Journal of Iranian Chemical Society, Vol. 7, Suppl. 1, Feb. 2010, P. S37, Abstract N. 84
31. H. Tavakoli, M. Shourian, H. Ghourchian, H.A Rafiee-Pour, M.M. Modarres Mosalla, Detection and dosimetry of gamma ray through reduction of cytochrome C based on superoxide radical anion production, 9th Iran Biophysical Chemistry Conference, Tehran, Tarbiat Modares University, 24-25 February 2010Journal of Iranian Chemical Society, Vol. 7, Suppl. 1, Feb. 2010, P. S36, Abstract N. 83
32. R. Rahimi, H.A Rafiee-Pour, H. Ghourchian, P. Norouzi, M.R. Ganjali, A Novel disposable functionalized CNTs/IL modified SP biosensor for glucose, 9th Iran Biophysical Chemistry Conference, Tehran, Tarbiat Modares University, 24-25 February 2010Journal of Iranian Chemical Society, Vol. 7, Suppl. 1, Feb. 2010, P. S17, Abstract N. 39
33. H. Tavakoli, M. Shourian, H. Ghourchian, M.M. Modarres Mosalla, Cotrel equation validity for modified HRP in the presence of gama ray radio isotope, 9th Iran Biophysical Chemistry Conference, Tehran, Tarbiat Modares University, 24-25 February 2010Journal of Iranian Chemical Society, Vol. 7, Suppl. 1, Feb. 2010, P. S38, Abstract N. 86
34. H. Faridnouri, H.A. Rafieepour, H. Ghourchian, Direct Electochemistry Of Chemically Modified Laccase Immobilized On Carbon Nanotube- Ionic Liquid Composite, 9th Iran Biophysical Chemistry Conference, Tehran, Tarbiat Modares University, 24-25 February 2010Journal of Iranian Chemical Society, Vol. 7, Suppl. 1, Feb. 2010, P. S19, Abstract N. 44
35. Hedayatollah Ghourchian, Improvement of carbon nanotubes performance for enzyme based electrochemical biosensors using ionic liquid, 9th Iran Biophysical Chemistry Conference, Tehran, Tarbiat Modares University, 24-25 February 2010Journal of Iranian Chemical Society, Vol. 7, Suppl. 1, Feb. 2010, P. S35, Abstract N. 80
36. S.A. Dehdast, H.Rafiaipour, S. Nobakht, M Shabani and H. Ghourchian, Fabrication of a nano-biosensor based on ADH and CNT for alcohol detection, 3rd IUMS Conference on Application of Nanotechnology in Medicine and Biomedical Sciences, P 116, Iran University of Medical Sceinces, Esfand 1388, Tehran, Iran
37. H. Rafiee-Pour, P. Rahimi, H. Ghourchian, Sensitivity improvement for glucose biosensing based on the nano-composit of ionic liquid amine functunalized CNT, 3rd IUMS Conference on Application of Nanotechnology in Medicine and Biomedical Sciences, P 121, Iran University of Medical Sceinces, Esfand 1388, Tehran, Iran
38. S. Sajjadi, H. Rafiee-Pour, P. Rahimi, H. Ghourchian, A. Keyhan, Carbon nanotube-ionic liquid composite for choline biosensing, 3rd IUMS Conference on Application of Nanotechnology in Medicine and Biomedical Sciences, P 9, Iran University of Medical Sceinces, Esfand 1388, Tehran, Iran
39. Hajar Zarei, Hedayatollah Ghourchian, Electrochemical Immunosensor for Detection of Human IgG Based on Modified Magnetic Carbon Nanotubes, 3rd IUMS Conference on Application of Nanotechnology in Medicine and Biomedical Sciences, P 8, Iran University of Medical Sceinces, Esfand 1388, Tehran, Iran
40. Alireza Lotfabadi, Hajar Zarei and Hedayatollah Ghourchian, A novel Immunosensor: Using Functionalized CNTs and Modified Anti-IgG for Electrochemical Detection of Human IgG, 3rd IUMS Conference on Application of Nanotechnology in Medicine and Biomedical Sciences, P 125, Iran University of Medical Sceinces, Esfand 1388, Tehran, Iran
41. H. Faridnouri and H. Ghourchian, Catechol biosensor based on binding of chemically modified Tyr with WRK on OAGCE, 3rd IUMS Conference on Application of Nanotechnology in Medicine and Biomedical Sciences, P 167, Iran University of Medical Sceinces, Esfand 1388, Tehran, Iran
42. H. Ghourchian, Nanoparticles performance in electrochemical biosensors, 3rd IUMS Conference on Application of Nanotechnology in Medicine and Biomedical Sciences, P 7, Iran University of Medical Sceinces, Esfand 1388, Tehran, Iran
43. R. Rahimi, H.A. Rafieepour, H. Ghourchian, P. Norouzi, M.R. Ganjali, Direct electrochemistry and electrocatalysis of catalase immobilized on RTIL/ functionalized MWCNTs film, 8th Iranian Biennial Seminar of Electrochemistry, July, 14-16, 2009, P. 26; Department of Chemistry, University of Kurdistan
44. S. Hashemnia, Sh. Khayatzadeh, A. A. Moosavi Movahedi, H. Ghourchian, Direct electron trannsfer of catalaze in carbon nanotube surfactant film on a glassy carbon electrode, 8th Iranian Biennial Seminar of Electrochemistry, July, 14-16, 2009, P.  190; Department of Chemistry, University of Kurdistan
45. Mostafa Shourian, Hossain-Ali Rafiee-pour, Hedayatollah Ghourchian, Hassan Tavakoli, A Bioelectrochemical Method for Detection of Ionizing Ray Sources, 8th Iranian Biennial Seminar of Electrochemistry, July, 14-16, 2009, P. 11; Department of Chemistry, University of Kurdistan
46. F. Khodadadi, S. M. Hossainalipour, M. Soltanieha, H.A. Rafieepour, H. Ghourchian, Dielectric Barrier Discharge Plasma Functionalized Carbon Nanotubes For Glucose Biosensing Application, P. 146,  8th Iranian Biennial Seminar of Electrochemistry, July, 14-16, 2009, Department of Chemistry, University of Kurdistan
47. Faridnouri H., Hashemnia S., Ghourchian H., Direct Electochemistry Of Chemically Modified Laccase At Glassy Carbon Electrode, 8th Iranian Biennial Seminar of Electrochemistry, July, 14-16, 2009, P. 221; Department of Chemistry, University of Kurdistan
48. Hedayatollah Ghourchian, Evolution Of Electrochemichal Biosensors For Blood Glucose Monitoring, From Test Strips To Nanoparticles Based Biosensors, 8th Iranian Biennial Seminar of Electrochemistry, July, 14-16, 2009, P.2;  Department of Chemistry, University of Kurdistan
49. Sharareh Sajjadi, Hosein-Ali Rafiee Pour, Parvaneh Rahimi, Hedayatollah Ghourchian, Direct Electochemistry Of Choline Oxidase At Carbon Nanotube-Ionic Liquid Modified Electrode, 8th Iranian Biennial Seminar of Electrochemistry, July, 14-16, 2009, P. 191, Department of Chemistry, University of Kurdistan
50. A. Hekmat, A. Saboury, H. Ghourchian, Usage of Choline oxidase, a glycine betaine synthesis enzyme, to induce growing in plants at hyperosmotic stress, 10th Iranian Genetics Congress, 21-23 May 2008, Razi Conferences Hall, Tehran, Iran
51. A. Hekmat, A. Saboury, H. Ghourchian, Usage of Choline oxidase, a glycine betaine synthesis enyme, to inhibit human pathogens at hyperosmotic infection site, The first congress of medical proteomics Iranian Clinical Proteomica Society, 19 Feb 2007, Shahid Beheshti Medical Science University, Tehran, Iran
52. J. Hong, H. Ghourchian, A.A. Moosavi-Movahedi, "Methylene blue-Nafion nanoparticles and its application for determination of hydrogen peroxide", 8th Iran Biophysical Chemistry Conference, University of Sistan & Bluchestan, 11-13 March, 2008.
53. H. Shafiey, H. Ghourchian, "Change in reorganization energy during Cyt c unfolding", 8th Iran Biophysical Chemistry Conference, University of Sistan & Bluchestan, 11-13 March, 2008.
54. S. Sajjadi, H. Ghourchian, "A biosensor for determination of Organophosphorous compounds", 8th Iran Biophysical Chemistry Conference, University of Sistan & Bluchestan, 11-13 March, 2008.
55. B. Zahedi, H.A. Rafiee-Pour, S.A. Shojaosadati, H. Ghourchian, "Application of functionalized-multiwall carbon nanotubes for detection of thiocholine", 8th Iran Biophysical Chemistry Conference, University of Sistan & Bluchestan, 11-13 March, 2008.
56. A. Hekmat, A.A. Saboury, H. Ghourchian, A. Divsalar, "Effects of pH on the structure and conformation of choline oxidase from Alcaligenes species", 8th Iran Biophysical Chemistry Conference, University of Sistan & Bluchestan, 11-13 March, 2008.
57. S. Emami, H.A. Rafiee-Pour, H. Ghourchian, "Cyclic voltammetry of cytochrome c on gold nanoparticles modified Au electrode in presence of dimethyl sulphoxide", 8th Iran Biophysical Chemistry Conference, University of Sistan & Bluchestan, 11-13 March, 2008.
58. Azadeh Hekmat, Ali Akbar Saboury, Hedayatollah Ghourchian, Usage of choline oxidase, a glycin betaine synthesis enzyme, to inhibit human pathogens at hyperosmotic infection site, The first congress of medical proteomics, Iranian Proteomics Society, Shahid Beheshti University, Feb 20 2008, P 43-44.
59. Azadeh Hekmat, Ali Akbar Saboury, Hedayatollah Ghourchian, Effect of temperature and pH on the activity of choline oxidase from Alcaligenese speices, The 2nd National Congress ofCellular and Molecular Biology, International Center for Science and High Technology and Environmental Sciences,  Jan 29-30, 2008, Kerman.
60. Hassan Tavakoli, Hedayatollah Ghourchian, "The optimum pH for electrochemically determination of activity for immobilized choline oxidase", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ. (7 BESI), Aug. 28-30, 2007. 
61. Mostafa Shourian, Navid Mogharrab, Hedayatollah Ghourchian, "Determination of hydrogen peroxidase using a modified horseradish peroxidase enzyme electrode", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ. (7 BESI), Aug. 28-30, 2007.
62. H. Shafiey, H. Ghourchian, "Change in reorganization energy during Cyt c unfolding", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ. (7 BESI), Aug. 28-30, 2007.
63. Fatemeh Amini Akbarabadi, Hossain-Ali Rafiee-pour, Hedayatollah Ghourchian, "Detection of superoxide anion by gold enzyme electrode", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ. (7 BESI), Aug. 28-30, 2007.
64. Sedigheh Hashemnia, Hedayatollah Ghourchian, Ali-Akbar Moosavi-Movahedi, "Electrochemical behavior of catalase on activated glassy carbon electrode: a chemical modification approach", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ. (7 BESI), Aug. 28-30, 2007.
65. Jun Hong, Faezeh Hamidi, Hedayatollah Ghourchian, "Direct electron transfer of horseradish peroxidase on Nafion-cysteine modified gold electrode", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ. (7 BESI), Aug. 28-30, 2007.
66. Zahra Gholami, Hedayatollah Ghourchian, "Choline biosensor based on a modified carbon nanotube-gold electrode", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ. (7 BESI), Aug. 28-30, 2007.
67. Hedayatollah Ghourchian, "Protein electrochemistry and its application for biosensor development", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ. (7 BESI), Aug. 28-30, 2007.
68. Hana Hanaee, Hedayatollah Ghourchian, "Electrochemical detection of nucleic acid using stripping chronopotentiometry", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ.  (7 BESI), Aug. 28-30, 2007.
69. Hassan Faridnouri, Sedigheh Hashemnia, Hedayatollah Ghourchian, "Study of direct electrochemical redox of modified tyrosinase on activated glassy carbon electrode", 7th Biennial Electrochemistry Seminar of Iran, Uromieh Univ.  (7 BESI), Aug. 28-30, 2007.
70. S. Rezaee, AA Saboury, H, Ghourchian, H. Jun, P. Norouzi, A.A. Moosavi-Movahedi, M Ganjalir, Silver nanoparticles as electrontransfer factor in hemoglobine ligand binding, 14th National and 2 International Conference of Biology, Tarbiat Modares University Tehran, Iran,   29-31 Aug, 2006.
71. M. Bahksi, M Habibi, S. Rezaee, H, Ghourchian, AA Saboury, A.A. Moosavi-Movahedi, J zargar, Electrochemical analysis of protein stricture change during glication process,14th National and 2 International Conference of Biology, Tarbiat Modares University Tehran, Iran, 29-31 Aug, 2006. 
72. J. Hong, H. Ghourchian, A.A. Moosavi-Movahedi, Direct electron transfer of superoxide dismutase on Nafion cystein modified gold electrode, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran, 18-19 July, 2006. 
73. J. Hong, A.A. Moosavi-Movahedi, H. Ghourchian, Conformational lock of bovine superoxide dismutase, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran,   18-19 July, 2006.
74. H. Hanaee, H. Ghourchian,  Nanoparticle-based electrochemical detection of nucleic acid using stripping chronopotentiometry, First International Congress on Nanoscience and Nanotechnology, Faculty of Engineering, University of Tehran 18th to 20th December 2006, pp. 27.
75. S. Maghsoodi, Z.Gholami, Y. Mortazavi, A.Khodadadi and H. Ghourchian, Single wall carbon nano tubes grown by CCVD of methan on an alumina substrate used as a novel and mediator free electrode for glucose biosensor,  First International Congress on Nanoscience and Nanotechnology, Faculty of Engineering, University of Tehran 18th to 20th December 2006, pp. 25.
76. Z.Gholami, H. Ghourchian and A.Khodadadi, Amperometric choline biosensor based on a modified carbon nanotube-gold electrode, First International Congress on Nanoscience and Nanotechnology, Faculty of Engineering, University of Tehran 18th to 20th December 2006, pp. 24.
77. H. Tavakoli, H. Ghourchian, A monoenzyme biosensor for detection organophosphorous compounds, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran,   18-19 July, 2006.
78. H. Shafiey, H. Ghourchian, Reorganization  energy as an electrochemical variable for monitoring protein refolding, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran,   18-19 July, 2006. 
79. S. Sjjadi, H.Ghourchian, Characterization of an amperometric choline biosensor, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran,   18-19 July, 2006. 
80. S. Sjjadi, H. Ghourchian, Choline oxidase biosensor for detection of paraoxon, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran,   18-19 July, 2006. 
81. A. Moulaie Rad, H. Ghourchian, N. safari, A.A. Moosavi-Movahedi, Comparative study of Peroxidase-Like Activity of Substituted Ionic porphyrines in Horseradish Peroxidase, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran,   18-19 July, 2006. 
82. N. Mogharrab, H. Ghourchian, Anthraquinone-modified Horseradish Peroxidase : A novel derivative with improved efficiency for electrochemical biosensors, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran,   18-19 July, 2006. 
83. J. Hong, H. Ghourchian, A.A. Moosavi-Movahedi, A biosensor for detection of hydrogen peroxide based on a Nafion-methylene blue functional membrane, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran,   18-19 July, 2006. 
84. S. Badieian, H. Hanaee, H. Ghourchian,  Detection of purine bases using chemically modified electrode, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran, 18-19 July, 2006. 
85. H.Ghourchian, F.Hamidi, Recent researches in electrochemistry of proteins in the of Laboratory  Microanalysis,  7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran,   18-19 July, 2006. 
86. Z.Gholami, H.Ghourchian, S.Maghsoodi, A.Khodadadi, Glucose biosensor based on single- walled carbon nanotubes electrode, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran, 18-19 July, 2006. 
87. S. Hashemnia, A.A. Moosavi-Movahedi, H. Ghourchian, Chemical modification of acidic residues as a tool to prevent the aggregation of bovine liver catalase, 7th Iranian Biophysical Chemistry Conference, Research Institute for Fundamental Science,Tabriz University,Tabriz, Iran, 18-19 July, 2006. 
88. N. Mogharrab, H. Ghourchian, Anthraquinone- modified horseradish peroxidase: A navel derivative with improved efficiency for electrochemical biosensors, 6th Biennial Electrochemistry seminar of Iran (6BESI), chemistry Department, Facclty of science, Bu-Ali sina University, Hamedan, Iran, 7-9 Sep, 2005, p. 163.
89. H Tavakoli, H Ghourchian, Amperometric determination of choline using a choline oxidase based biosensor, 6th Biennial Electrochemistry seminar of Iran (6BESI), chemistry Department, Faculty of science, Bu-Ali Sina University, Hamedan, Iran, 7-9 Sep, 2005, p. 34.
90. K. Niknam, H. Ghourchian, Amperometric  determination of H2O2 produced by glucose oxidase catalytic activity using prussian blue, 6th Biennial Electrochemistry seminar of Iran (6BESI), chemistry Department, Faculty of science, Bu-Ali sina University, Hamedan, Iran, 7-9 Sep, 2005, p. 187.
91. Hassan Tavakoli, Hedayatollah Ghourchian, Ali Akbar Saboury, Detarmination of thermodynamic parameters of the interaction of paraxon and ethylparathion with choline oxidase by fluorescence spectroscopy, 9nd Iranian Chemical Enginnering Congress, Iranian University of Science and Technolpgy, 23-25 Nov, 2004, P.333.
92. Hassan Tavakoli, Hedayatollah Ghourchian, Ali Akbar Moosavi Movahedi, The Effect of Paraoxon and Parathion on the Structure of Choline Oxidase and its Importance in Biosensors", 2nd Congress on Applied Biology, Biology Department, Faculty of Science, Islamic Azad University of Mashhad, 29-30 Sep, 2004, P. 483.
93. Hedayatollah Ghourchian., Kaveh Niknam, Farnaz Leilazy, Faezeh Hamidi, Disposable Enzymatic Biosensors Using Screen Printing Technique, 2nd Congress on Applied Biology, Biology Department, Faculty of Science, Islamic Azad University of Mashhad, 29-30 Sep, 2004, P. 277.
94. Kaveh Niknam, Hedayatollah Ghourchian, A New Biosensor for Glucose Detection by Glucose Oxidase and HRP in Negative Potentials, 2nd Congress On Applied Biology, Biology Department, Faculty of Science, Islamic Azad University of Mashhad, 29-30 Sep, 2004, P. 364.
95. K. Fatemi, H. Ghourchian, Application of electrochemical methods in nucleic acids consideration, 2nd Congress on Applied Biology, Biology Department, Faculty of Science, Islamic Azad University of Mashhad, 29-30 Sep, 2004, P. 158.
96. Ahmad Moulaie Rad, Hedayatollah Ghourchian, Application of Conductometric Method For Enzymatic Determination of Urea, 6th Iranian Biophysical Chemistry Conference, Department of Chemistry, Damghan University of Basic Sciences, 7-9 Sep, 2004,P. 47.
97. Hassan Tavakoli, Hedayatollah Ghourchian, Ali Akbar Saboury, Choline oxidase inhibition kinetics in the presence of paraoxon and ethylparathion, 6th Iranian Biophysical Chemistry Conference, Department Of Chemistry, Damghan University of Basic Sciences, 7-9 Sep, 2004, P. 31.98. Hassan Tavakoli, Hedayatollah Ghourchian, Ali Akbar Moosavi Movahedi, Determination of histidine role in choline oxidase activity by chemical modification, 6th Iranian Biophysical Chemistry Conference, Department of Chemistry, Damghan University of Basic Sciences, 7-9 Sep, 2004,P. 21.
99. Hedayatollah Ghourchian, Faezeh Hamidi, Kaveh Niknam, New generation electrochemical biosensors, 6th Iranian Biophysical Chemistry Conference, Department Of Chemistry, Damghan University of Basic Sciences, 7-9 Sep, 2004, P. 6.
100. Sedighe Hashemnia, Hedayatollah Ghourchian, Ali Akbar Moosavi Movahedi, Purification and characterization of laccase from lacqure tree Rhus vernicifera, 6th Iranian Biophysical Chemistry Conference, Department Of Chemistry, Damghan University Of Basic Sciences, 7-9 Sep, 2004, P. 71.
101. Kamal Fatemi, Hedayatollah Ghourchian, Hana Hanaie; DNA Based Electrochemical Biosensor for Detection of Hepatitis B Virus, 6th Iranian Biophysical Chemistry Conference, Department Of Chemistry, Damghan University Of Basic Sciences, 7-9 Sep 2004, P. 51.
102. Hassan Tavakoli, Hedayat O. Ghourchian, Choline oxidase Denaturation by Ethylparathion Hydrophobic Effect; 12th Iranian Biology Conference, Department of Biology, Bu Ali Sina University of Hamedan, 1-2 Sep 2004, P. 148.
103. Hassan Tavakoli, Hedayatollah Ghourchian, The Investigation, on the Inhibition Effect of Ethylparathion on the Choline Oxidase and its Applications in the Design of Mono Enzymatic Biosensors, 11Th Iranian Conference on Biomedical Engineering, Faculty Of Biomedical Engineering, University of, Amir kabir, Iran, Tehran, Feb, 2004, P. 5.
104. Hassan Tavakoli, Hedayatollah Ghourchian, The Effect of Paraoxon and Parathion Organophosphates on Serine Phosphorylation in the Enzyme Biosensors, 2nd Seminar on the Modern War, Scientific and Applications Approaches, Faculty of Modern War, University of Imam Hossein, Iran, Tehran, 2003, P. 50.
105. Hossein Allahyari, Morovat Taheri, Mohamad Iman Eini, Hedayatollah Ghourchian, SAW Biosensor, 2nd Seminar on the Modern War, Scientific and Applications Approaches, Faculty of Modern War, University of Imam Hossein, Iran, Tehran, 2003, P. 2.
106. M. Dayer, P. Nourozi, H. Ghourchian, A. A. Moosavi Movahedi, Stabilizing of Deoxy Conformer for Hemoglobin by SDS; Fifth Iranian Biophysical Chemistry Seminar, Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, 6-8 Jun. 2001, P. 25.
107. Nematollah Dousti, Hedayat O. Ghourchian, Pulsed Field Electrophoresis Evaluation of Constructed System; First National Congress of Biotechnology, Tarbiat Modaress University, Tehran 22-24 Feb. 2000, P. 1014-1017.
108. Nematollah Dousti, Hedayat O. Ghourchian, Design ond Construction of Pulsed Field Electrophoresis for DNA Separation; First Conference on the Application of Physics and Nuclear Sciences in Medicine and Industry, Faculty of Physics and Nuclear Science, Amir Kabir University of Tehran, Tehran, 7 Feb. 2000, P. 228-232.
109. Ahmad Mowlaie Rad, Hedayat O. Ghourchian, Application of Conductometric Method for Enzymatic Determination of Urea; The First Iranian Congress of Biochemistry and Biophysics, Institute of Biochemistry and Biophysics, The University of Tehran, Tehran, 16-17 Jan. 2001, P. 45. , Iranian Biomedical Journal, V. 4, No. 4, Oct 2000, P. 148.
110. Ebrahim Vakilpour, Hedayat O. Ghourchian, Chemical Modification of GOD In Order to Make it Electrochemically Conductive; The First Iranian Congress of Biochemistry and Biophysics, Institute of Biochemistry and Biophysics, The University of Tehran, Tehran, 16-17 Jan. 2001, P. 100, Iranian Biomedical Journal, V. 4, No. 4, Oct 2000, P. 170.
111. Reza Toufani, Hedayat O. Ghourchian, Horseradish Peroxidase Immobilized Electrode for H2O2 Analysis, Submitted toThe Fifth Biochemistry Congress of Iran, Urmia University of Medical Sciences, 6-9 Sept. 1999. 
112. Reza Toufani, Hedayat O. Ghourchian, Determination of Hydrogen Peroxide by Utilizing a Biochemically Modified Platinum Electrode, Third Biennial Seminar of Electrochemistry of Iran; Babolsar, Iran, 19-20 May. 1999. P.47-8.
113. Headyet O. Ghourchian, Masoumeh Ghannadi, Study and Application of Conductometric Techniques on Development of Enzyme Biosensors, The Thirteenth Iranian Chemistry and Chemical Engineering Congress, University of Tarbiat Modarres, Tehran, Iran, 16-18 Feb. 1999. P. 72.
114. Hedayat O. Ghourchian, Reza Toufani, Enzyme Electrode for Determination of Hydrogen Peroxide, The Seventh Iranian Biology Conference, University of Isfahan, Department of Biology, Isfahan, Iran, 22-24 Aug. 1998. P. 165. 
115. Hedayat O. Ghourchian, Hamideh Hoseinzadeh, Development of a Thin Layer Immobilized Enzyme Using Non-denaturing Electrophoresis Technique, The Seventh Iranian Biology Conference, University of Isfahan, Department of Biology, Isfahan, Iran, 22-24 Aug. 1998. P. 164. 
116. Hedayat O. Ghourchian, Masoumeh Ghannadi, Immobilization of an Enzymatic Monolayer on Glass Beads, The Seventh Iranian Biology Conference, University of Isfahan, Department of Biology, Isfahan, Iran, 22-24 Aug. 1998, P. 58. 
117. Hedayat O. Ghourchian, Hamideh Hoseinzadeh, A New Method for Assay of Acethylcholinesterase Activity. The Fourth Biochemistry Congress, Babol University of Medical Science, Babol, Iran, 19-22 Oct. 1997, P. 138. 
118. Hedayat O. Ghourchian, Naoki Kamo, Application of Piezoelectric Quartz Crystal on Development of Rheumatoid Factor Biosensors. The Thirteenth Iranian Congress of Physiology pharmacology, Isfahan Selected Publications in Persian: University of Medical Science, Isfahan, Iran. 28-31 Aug. 1997. P. 185.