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Ebrahim Ahmadi




Ebrahim Ahmadi
Associate professor

E-Mail
Ahmadi@znu.ac.ir       Abrahmadi2001@gmail.com
URL
 http://www.znu.ac.ir/members/ahmadi-ebrahim/en

Tel
      +98 (0) 24 3305 2269
Fax
   +98 (0) 24 3228 098-24-3305247
Address 
Chemistry Department, Zanjan University, P. O. Box 45195-313, Zanjan, Iran, postal code: 45371-38791.

 

Personal Information

Name: Ebrahim
Surname: Ahmadi
Date of birth: 21/02/1978
Place of birth: Varzeqan, Iran

Marital Status: Married
E-mail: Ahmadi@znu.ac.ir

  Abrahmadi2001@yahoo.com

  Abrahmadi2001@gmail.com

Postal address: Chemistry Department, University of Zanjan, P. O. Box 45195-313, Zanjan, Iran
TEL: +98 (0)241 5152269
Fax: +98 (0)241 5152472

Mobile phone: +98 (0) 9144015653
Web Address: http://www.znu.ac.ir/members/ahmadi_ebrahim

URL: http://www.researcherid.com/rid/R-8308-2017

Publication summary:

  • ISI indexed peer-reviewed publications: 86 papers with 1050+ total citations
  • ISI indexed publications: H-index 17 and over 1050+ citations (ISI Web of Knowledge)
  • Google Scholar: 1174+ citations, h-index 20, i-10 index 31 (Google scholar)
  • International Conference contributions: 60 papers
  • National Conference contributions: 80 papers
  • ISC indexed peer-reviewed publications: 5 papers

 

 

Education

  • High School Diploma, 1997, Shahid rajaee, Varzeqan
  • B.Sc. (Applied chemistry), 2001, Tabriz University, Tabriz
  • M.Sc. (Organic chemistry), 2003, University of Zanjan, Zanjan
  • Ph.D. (Polymer chemistry), 2008, University of Zanjan , Zanjan and

Iran Polymer & petrochemical Institute (IPPI)

 

Employment

  • Chemistry Department, University of Zanjan, 2008-present academic staff, assistant professor

 

 

Research Interests

  • The design and preparation of supported catalysts, chromium and tandem catalysts.
  • Coordination Polymerization of Olefins.
  • Chromium Catalyst: Preparation of various chromium catalysts, and their use for the preparation of polyethylene.
  • The Selective Trimerization of Ethylene to Hex-1-ene.

 

  • Nano Catalysts. Preparation of nano-silica supported chromium catalyst and its use for the preparation of nano-polyethylene, Tandem catalysts for LLDPE preparation.
  • Nano Support: Synthesis, characterization and modification of nano silica supports (such as SBA-15, SBA-11, Al/SBA-15, Ti/SBA-15, Spherical SBA-15, MCM-41 …) and their application for catalysts preparation, explosive detection, drug delivery, electrochemistry and etc.   
  • Atom Transfer Radical Polymerization (ATRP) : Fundamentals and Development of High-Efficiency Supported Catalyst Systems for Atom Transfer Radical Polymerization.
  • Polymer Hydrogels and Modification: Interpenetrating polymer network (IPN) and hybrid hydrogels are also interested. Natural polymers from renewable resources such as polysaccharides (Tragacanth …) interested to be modified (via chemical grafting, IPN formation, etc.) or combined to achieve water soluble/swellable materials with improved properties.
  • Polymers for Controlled Delivery of Bioactive Agents. Macromolecular systems are interested to be designed for controlled delivery of bioactive agents, e.g. drugs, pesticides and agrochemicals. Investigation of drug release by 1H NMR analysis
  • Polymerization & Characterization of polymers.
  •  Reactions of Polymers.
  •  Characterization of Polymers.

 

 

 

Honours and Awards

 

  1. First Class Honor in my M.Sc. program, 2003
  2. Distinguished M.Sc. student in University of Zanjan, 2003, Awarded by the Director of the University of Zanjan.
  3. Distinguished Ph.D. student in University of Zanjan, 2004, Awarded by the Director of the University of Zanjan.
  4. Distinguished Ph.D. Student in Iran, 2004, Awarded by His Excellency the President of Islamic Republic of Iran.
  5. 9th Kharazmi Festival Award (Ministry of Science and Higher Education of Iran), 2007, Awarded by His Excellency the Ministry of Science, Research and Technology.
  6. First Class Honor in my Ph.D. program, 2008.
  7. Selected as a best presentation in 9th International Seminar on Polymer Science and Technology, Iran Polymer and Petrochemical Institute, 17-21 October 2009, Awarded by His Excellency the chairman of 9th International Seminar on Polymer Science and Technology.
  8. Distinguished Scientific Married Couple in 1th Matla-e-Eshgh National Festival, 2008, Awarded by His Excellency the President of Islamic Republic of Iran.
  9. Scientific Secretary of the 16th Iranian Conference of Organic Chemistry, 2009, University of Zanjan, Zanjan, Iran.
  10. Distinguished Researcher, National Elites Foundation, Zanjan, First 1rank, 2014.

 

Scientific Society Member

  1. Iran Chemistry & Chemical Engineering Society (Member).
  2. Iran Inventors Associator (Member).
  3. Iran Polymer Society (Member).
  4. Iran Nanotechnology Society (Member).
  5. Iran Young researcher Club (Member).
  6. Board of directors of Estekhrajkarane Delta Shargh Company.
  7. National Elites Foundation (NEF) (Member).

 

 Current Researchs(CR) Or Completed Project(C) 

  1. Preparation of silica supported chromium catalyst and its use for the preparation of polyethylene(C).
  2. Preparation and characterization of Cr/SBA-15 Catalysts and its use for the preparation of nano-polyethylene fibres (C).
  3. Synthesis of coordination catalysts for preparation of LLDPE via tandem polymerization of ethylene (CR).
  4. Porphyrin-doped mesoporous silica films for rapid explosive compounds detection (CR).
  5. Preparation of novel drug delivery systems based on alginate-carrageenan hydrogels and PLGA for corticosteroid drugs(C).
  6. Synthesis of stabilized phosphorus ylides from C-H acids and their structure characterization(C).
  7. Synthesis of N-vinyl imides and their structure characterization(C).
  8.  Synthesis of stabilized phosphorus ylides from OH, NH, SH- acids, and their reaction investigation in the Presence of solid catalyst(C).
  9. Synthesis of electron-poor N-vinyl imides from stabilized phosphorus ylides in the Presence of solid catalyst(C).
  10.   One pot Synthesis of Substituted ylides using Trifluoroethanol(C).
  11. Crystal structure of dimethyl (Z)-2(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)2-butenedioate(C).
  12. Preparation of sodium permanganate and investigation possibility of its using in Iran zinc industry(C).  
  13. Semi-industrial extraction of V2O5 from Flexi coke and combustional waste(C).
  14. Semi-industrial production of cadmium sulfide, nickel oxide and zinc oxide from zinc factory wastage(C).

 

 

 

Courses Taught

At University of Zanjan, Chemistry department

  1. Polymer chemistry.
  2. Advanced polymer Chemistry
  3. Inorganic Polymers
  4. Polymerization Kinetics
  5. Industrial catalysts
  6. Physical polymer science
  7. Polymer technology
  8. Novel subject in polymer science
  9. Polymer degradation and stabilization
  10. General chemistry
  11. Organic chemistry

 

Publications for Ebrahim Ahmadi (International ISI Journals):

 

86. Mousavi-Qeydari, S.R., Samimi, A., Mohebbi-Kalhori, D., Ahmadi, E., A mesoporous melamine/chitosan/activated carbon biocomposite: Preparation, characterization and its application for Ni (II) uptake via ion imprinting, International Journal of Biological Macromoleculesthis link is disabled, 2021, 188, pp. 126–136

 

85. Ahmadi, L., Ahmadi, E., Mohamadnia, Z., Imidazolium-based poly(ionic liquid)s for demulsification of water in crude oil emulsions, Polymers for Advanced Technologiesthis link is disabled, 2021, 32(9), pp. 3421–3435

 

84. Gharajedaghi, S., Mohamadnia, Z., Ahmadi, E., ...Poater, A., Bahri-Laleh, N., Experimental and DFT study on titanium-based half-sandwich metallocene catalysts and their application for production of 1-hexene from ethylene, Molecular Catalysisthis link is disabled, 2021, 509, 111636

 

83. Ahmadi, E., Hajifatheali, H., Valipoor, Z., Marefat, M., Synthesis, characterization and analytical applications of Ni(II) ion-imprinted polymer prepared by N-(2-hydroxyphenyl)acrylamide, Journal of Polymer Research this link is disabled, 2021, 28(5), 181.

 

82. A. Khavandi Khiavi, A. Ghanbari and E. Ahmadi, "Evaluation of Poly 2-Hydroxyethyl Methacrylate—Modified Bitumen Aging Using NMR and FTIR Techniques." Journal of Transportation Engineering, Part B: Pavements, 2021, 147(1): 04020087.

           

81. Mohamadreza Marefat, Ebrahim Ahmadi*, Zahra Mohamadnia, "Influence of ionic liquid counterions on activity and selectivity of ethylene trimerization using chromium‐based catalysts in biphasic media." Applied Organometallic Chemistry, 2021, 34(10): e5874.

 

80. Khaleghi, M., Ahmadi**, E., Khodabandeh Shahraki, M., Aliakbari, F., Morshedi*, D., Khaleghi, M., et al., "Temperature-dependent formulation of a hydrogel based on Hyaluronic acid-polydimethylsiloxane for biomedical applications." Heliyon, 2020, 6(3): e03494.

           

79. Khavandi Khiavi, A., Ghanbari, A., Ahmadi, E., Physical and High-Temperature Rheological Properties of PHEMA-Modified Bitumen, Journal of Materials in Civil Engineering, 2020, 32(3): 04020010

 

78. Firouzi, E., Hajifatheali, H., Ahmadi, E., Marefat, M., An overview of acrylonitrile production methods: Comparison of carbon fiber precursors and marketing, Mini-Reviews in Organic Chemistry this link is disabled, 2020, 17(5), pp. 570–588

 

77. Hajifatheali, H., Ahmadi*, E., Marefat, M., Synthesis of N-benzyl-2-(dodecylthio)-N-(2-(dodecylthio)ethyl)ethana Journal of Polymer Research mine: new ligand for block copolymerization of styrene and methyl methacrylate using ATRP, Journal of Polymer Research (2020) 27:22

 

76. Amani, S., Mohamadnia, Z., Ahmadi, E., Mahdavi, A., Kermanian, M., Self-assembled polyelectrolyte complex nanoparticles as a potential carrier in protein delivery systems, Journal of Drug Delivery Science and Technology 54 (2019) 101250

 

75. Fallahi, M., Ahmadi*, E., Mohamadnia, Z. Effect of inorganic oxide supports on the activity of chromium-based catalysts in ethylene trimerization, Appl Organometal Chem. 2019;33:e4975

 

74. Najafi, V., Ahmadi*, E., Ziaee, F., Omidian, H., Sedaghat, H. Polyaniline-Modified TiO2 , a Highly Effective Photo-catalyst for Solid-Phase Photocatalytic Degradation of PVC, Journal of Polymers and the Environment volume 27, pages784–793(2019)

 

73. Shambayati, M.H., Mehrabi, M., Dounighi, N.M., Ramazani, A., Mirakabadi, A.Z., Ahmadi, E., Characterizing and controlling the loading of Vipera albicornuta venom in chitosan nanoparticles as an adjuvant and vaccine delivery system, Nanomedicine Research Journal 4(4):220-227, Autumn 2019

 

72. Najafi, V.Ahmadi*, E., Ziaee, F. Chemical modification of PVC by different nucleophiles in solvent/non-solvent system at high temperature, Iranian Polymer Journal volume 27, pages841–850(2018).

 

71. Fallahi, M. Ahmadi, E. Ramazani, A. Mohamadnia, Z., Trimerization of ethylene catalyzed by Cr-based catalyst immobilized on the supported ionic liquid phase, Journal of Organometallic Chemistry, 2017.

 

70. Tabebordbar, H. Mohamadnia, Z. Ahmadi, E., Atom transfer radical polymerization of methyl methacrylate using copper-based homogeneous and heterogeneous catalysts, Chemical Papers, First Online: 07 June 2017.

 

69. Gharebaghi, F. Dalali, N. Ahmadi, E. Danafar, H., Preparation of wormlike polymeric nanoparticles coated with silica for delivery of methotrexate and evaluation of anticancer activity against MCF7 cells, Journal of Biomaterials Applications, 2017, 31(9), 1305-1316.

68. Ebrahim Ahmadi, Zahra Mohamadnia, Sajjad Rahimi, Mohammad Hasan Armanmehr, Mohammad Hossein Heydari, Mahmood Razmjoo, Phillips Catalysts Synthesized over Various Silica Supports: Characterization and Their Catalytic Evaluation in Ethylene Polymerization, Polyolefins Journal (ISC-Eng), Volume 3, Issue 1, 2016, Page 23-36.

 

67. Hashemikia, S., Hemmatinejad, N., Ahmadi, E., Montazer, M., Antibacterial and anti-inflammatory drug delivery properties on cotton fabric using betamethasone-loaded mesoporous silica particles stabilized with chitosan and silicone softener, 2016, Drug Delivery 23 (8) ,pp.2946.

 

66. Ahmadi, E.,Gatabi, J.,Mohamadnia, Z, Preparation and characterization of Zn(II) ion-imprinted polymer based on salicylic acrylate for recovery of Zn(II) ions, Polimeros, 2016, 26 (3) ,pp.242.

 

65. Samaneh Hashemikia, Nahid Hemmatinejad, Ebrahim Ahmadi, Majid Montazer, A novel anti-bacterial cotton fabric with drug delivery properties using SBA-15 NH2/polysiloxane hybrid containing tetracycline, Materials Science and Engineering: C, 2016, 59 ,pp.429.

 

64. Doustgani, A., Ahmadi, E., Evaluation of electrospinning process parameters of poly lactic-co-glycolic acid and hydroxyapatite nanocomposite nanofibrous scaffolds, Journal of Engineered Fibers and Fabrics, 2016, 11 (3), pp. 9.

 

63. Doustgani, A.,Ahmadi, E., Melt electrospinning process optimization of polylactic acid nanofibers, Journal of Industrial Textiles, 2016, 45 (4), pp. 626.

62. Rahdar, S.S., Abdollahi, M., Ahmadi, E., Biglari, A., Determining chemo specificity in reactions with chain transfer agent and corresponding radical via evaluation of molecular weight dependency of apparent comonomer reactivity ratios: Free-radical copolymerization of vinyl acetate and dibutyl maleate, RSC Advances, 2016, 6 (111) pp. 109759.

61. Hassan Hajifatheali, Ebrahim Ahmadi, Andrzej Wojtczak, Zvonko Jaglicic, The synthesis of N-methylbis[2-(dodecylthio)ethyl]amine (SNS) and investigation of its efficiency as new mononuclear catalyst complex in copper-based ATRP, Macromolecular Research, 2015, 23 (11), pp.977.

 

60. Zahra Mohamadnia, Ebrahim Ahmadi, Mehdi Nekoomanesh Haghighi, Atefe Farandpour, Zinat Rezazadeh, Maryam Fallahi, Preparation of LLDPE through tandem ethylene polymerization using chromium and zirconium catalysts, Iran Polym J (2015) 24:621–628.

 

59. M. Ghasemnejad, E. Ahmadi, Z. Mohamadnia, A. Doustgani, S. Hashemikia, Functionalized Silica Nanoparticles as a Carrier for Betamethasone Sodium Phosphate: Drug Release Study and Statistical Optimization of Drug Loading by Response Surface Method, Materials Science and Engineering: C, 56, 223-232, (2015).

 

58. Ebrahim Ahmadi, Ali Ramazani, Zahra Hamdi, Asemeh Mashhadi-Malekzadeh, Zahra Mohamadnia, 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin covalently bound to nano-silica surface: Preparation, characterization and chemosensor application to detect TNT, Silicon, October 2015, Volume 7, Issue 4, pp 323-332.

 

57. Z. Mohamadnia, E. Ahmadi, M. Ghasemnejad, S. Hashemikia and A. Doustgani, Surface Modification of Mesoporous Nanosilica with [3-(2-Aminoethylamino) propyl] trimethoxysilaneand Its Application in Drug Delivery, Int. J. Nanosci. Nanotechnol., Vol. 11, No. 3, Sept. 2015, pp. 167-177.

 

56. Samaneh Hashemikia, Nahid Hemmatinejad, Ebrahim Ahmadi, Majid Montazer, Optimization of tetracycline hydrochloride adsorption on amino modified SBA-15 using response surface methodology, Journal of Colloid and Interface Science, Volume 44, April 2015, pp.105

 

55. Seyed Saeid Rahdar, Ebrahim Ahmadi, Mahdi Abdollahi, Mahmood Hemmati*, A comprehensive study on kinetics of free-radical solution copolymerization of vinyl acetate and dibutyl maleate in chloroform, J Polym Res (2014) 21(11):582, DOI 10.1007/s10965  014-0582-5.

 

54. Fatemeh Saghatchi, Ebrahim Ahmadi, Zahra Mohamadnia, Hassan Hajifatheali, Hashem Tabebordbar, Farnoosh Karimi, Cu-based atom transfer radical polymerization of methyl methacrylate using a novel tridentate ligand with mixed donor atoms, Chemical Papers 68 (11) 1555–1560 (2014) DOI: 10.2478/s11696-014-0613-z.

 

53. Ebrahim Ahmadi, Nematollah Dehghannejad, Samaneh Hashemikia, Merajaddin Ghasemnejad, and Hashem Tabebordbar, Synthesis and surface modification of mesoporous silica nanoparticles and its application as carriers for sustained drug delivery, Drug Deliv, 2014; 21(3): 164–172.

 

52.  Ebrahim Ahmadi, Ali Ramazani, Asemeh Mashhadi-Malekzadeh, Zahra Hamdi, Zahra Mohamadnia, Preparation and characterization of mono-substituted porphyrins immobilized on Nano-Silica, Bull. Mater. Sci., Vol. 37, No. 5, August 2014, pp. 1101–1112.

 

 51. Ebrahim Ahmadi, Zahra Mohamadnia, Asemeh Mashhadi-Malekzadeh, Zahra Hamdi, Fatemeh Saghatchi, Preparation, characterization and polymerization of chromium complexes grafted Al/SBA-15 and Ti/SBA-15 nanosupports, Journal of Applied Polymer Science Vol. 128 Issue 6 (2013) PP. 4245-4252 DOI: DOI: 10.1002/app.38353. 

 

48. Z. Mohamadnia, E. Ahmadi, M. Nekoomanesh Haghighi, High Productive Ethylene Trimerization Catalyst Based on CrCl3/SNS Ligands, Journal of Catlysis letter Vol. 8 Issue 141 (2011) PP. 1191-1198. 

 

47. Z. Mohamadnia, E. Ahmadi, M. Nekoomanesh Haghighi, A. Ramazani and H. Salehi Mobarakeh, Synthesis and optimization of ethylene trimerization using [bis-(2-dodecylsulphanyl-ethyl)-amine]CrCl3 catalyst, Journal of Catlysis letter (2011) 141:474–480.

 

46. E. Ahmadi, M. Nekomanesh Haghighi, Z. Mohamadnia and A. Ramazani, Preparation of Shish-Kebab and Nanofiber Polyethylene with Chromium/Santa Barbara Amorphous Silica-15 Catalysts, Journal of Applied Polymer Science, 2010, 118, 3658–3665.

45. Effect of nano support structure on activity of Cr/nanosilica Catalysts and morphology of prepared polyethylene, Z. Mohamadnia, Ebrahim Ahmadi, M. Nekoomanesh Haghighi, A. Ramazani and H. Salehi, Polymer International, 2010, 59, 945–953.

 

44. Characterization of a carbon paste electrode containing organically modified nanostructure silica: Application to voltammetric detection of ferricyanide, Reza Ojani, Ebrahim Ahmadi, Jahan-Bakhsh Raoof and Fatemeh Mohamadnia; Journal of Electroanalytical Chemistry, 626 (2009) 23–29.

 

43. Investigation of drug release and 1H-NMR analysis of the in situ forming systems based on poly(lactide-co-glycolide), Z. Mohamadnia, E. Ahmadi, M. Rafienia, H. Mirzadeh, H. Mobedi, Journal of Polymer for  advanced Technologies, 2008, 19, 1–10.

 

42. Synthesis and reactions of stabilized phosphorus ylides, (Review Article), Ali Ramazani, Alireza Kazemizadeh, Ebrahim Ahmadi, Nader Noshiranzadeh and Ali Souldozi, Current Organic Chemistry,  2008, vol. 12, no. 1, pp 59-82, Dedicated to Professor Issa Yavari on the occasion of his 59th birthday.

 

41. Vinylphosphonium Salt Mediated Preparation of Substituted Imides and Furans from Benzoic acid, 1,1,3,3-Tetramethylbutyl Isocyanide and Acetylenic Esters, Mohsen Valizadeh Holagh, Ali Ramazani and Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; 2008; Volume 183, No.9 , Pages 2173.

 

40. Vinyltriphenylphosphonium Salt Mediated Preparation of Fully Substituted Furans and Electron-Poor Imides from Benzoic acid, Cyclohexyl Isocyanide and Acetylenic Esters, Mohsen Valizadeh Holagh, Ebrahim Ahmadi and  Ali Ramazani, Phosphorus, Sulfur, and Silicon and the Related Elements;  2008; Volume 183, No.9 ,  Pages  2173–2180.

 

39. A Novel Three-Component Reaction of Dibenzylamine and an Aromatic Aldehyde with an Alkyl Isocyanide in the Presence of Silica Gel: An Efficient Route for the One-Pot Synthesis of Sterically Congested 2-(Dibenzylamino)-2-Aryl Acetamide Derivatives, Ebrahim Ahmadi, Amir Tofangchi Mahyari, Ali Ramazani and Mehdi Nekomanesh Haghighi,  "Letters in Organic Chemistry", 2008, Volume 5, No.7, Pages 540-543.

 

38. Synthesis of Sterically Congested Stabilized Phosphorus Ylides from Acetylenic Esters, 4,4,4-Trifluoro-1-(2-naphthyl)-1,3-butanedione and Triphenylphosphine, Ali Ramazani, Ali Jafari, Ebrahim Ahmadi, Farzin Marandi, Phosphorus, Sulfur, and Silicon and the Related Elements; 2008; Volume 183, No, 7, Pages 1564-1570.

 

37. Synthesis of dialkyl 2-(2-oxo-2-phenylethyl)-3-(1,1,1-triphenyl-l 5-phosphanylidene) succinates from triphenylphosphine, acetylenic ester and 4,4,4-trifluoro-1-phenyl-1,3-butanedione in the presence of basic alumina powder, Ali Jafari, Ebrahim Ahmadi, Mokhtar Alinia, Ali Ramazani, Phosphorus, Sulfur, and Silicon and the Related Elements;  2008; Volume 183, No.5 ,  Pages 1116-1123.  

 

36. Synthesis of Thiophene-Containing Stabilized Phosphorus Ylides from 4,4,4-Trifluoro-1-(2-thienyl)-1,3-butanedione, Acetylenic Esters and Triphenylphosphine, Ali Jafari, Ebrahim Ahmadi, Ali Ramazani, Phosphorus, Sulfur, and Silicon and the Related Elements; May 2008; Volume 183, No.6, Pages. 1489.

 

35. Full natural hydrogel beads for controlled release of betamethasone, Z. Mohamadnia, A. Jamshidi, H. Mobedi, E. Ahmadi, M. J. Zohuriaan-Mehr, Iranian Polymer Journal, 16 (10), 2007, 711-718.

 

34. A novel four-component reaction of diethylamine, aromatic aldehyde and alkyl isocyanide with dialkyl acetylenedicarboxylate in the presence of silica gel: an efficient route for the regio- and stereoselective synthesis of sterically congested alkenes, E. Ahmadi, A. Ramazani, M. Nekomanesh Haghighi, Tetrahedron letters, Volume 48,  2007, pp.  6954-6957.

  

33. Synthesis of Dialkyl 8-Oxo-2,8-dihydroisoxazolo[3,2-a]isoindole-2,3-dicarboxylates from Dialkyl Acetylenedicarboxylates, N-Hydroxy Phthalimide and Tributylphosphine, Leila Youseftabar-Miri, Ali Ramazani, Ebrahim Ahmadi, Alireza Sedrpoushan, Phosphorus, Sulfur, and Silicon and the Related Elements; May 2007; Volume 182, No.11, Pages 2523.

 

32. Microwave Induced Stereoselective Conversion of Stabilized Phosphorus Ylides to Electron Poor (Z)-N-Vinylimides in the Presence of Supported Catalysts on Silica gel in Solvent Free Conditions, Ali Reza Kazemizadeh, Ebrahim Ahmadi, Farzin Marandi and Ali Ramazani, Phosphorus, Sulfur, and Silicon and the Related Elements; 2007; Volume 182, No.12, Pages 2855.

 

31. Crystal Structure of Dimethyl 2-[(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)oxy]-2-butenedioate, Leila Youseftabar-Miri, Ali Ramazani, Ebrahim Ahmadi and Ali Morsali, Analytical Sciences, 2007, vol. 23 , pp  x97-x98.

 

30. Regio- and Stereoselective Addition of 1,2,3,6-Tetrahydrophthalimide to Electron-poor Acetylenic Esters in the Presence of Triphenylphosphine, Amir Tofangchi Mahyari,  Nahid Shajari, Ebrahim Ahmadi,‌ Ali Ramazani, Phosphorus, Sulfur, and Silicon and the Related Elements; May 2007; Volume 182, No.7,  Pages 1653-1659.

 

29. Silica Gel Powder Catalyzed Stereoselective Synthesis of Dialkyl 1,1-Diacetyl-8a-hydroy-8-oxo-1,2,8,8atetrahydrocyclopenta[a]indene-2,3-dicarboxylates from the Reaction of Dialkyl 2-(1-Acetyl-2-oxopropyl)-3- (tributylphosphoranylidene)-succinates with Ninhydrin in Solvent-free Conditions Sadegh Salmanpour, Ebrahim Ahmadi, Nargess Khosravi and Ali Ramazani, Asian J. Chem., Vol. 19, pp. 1567-1569 (2007).

 

28. Synthesis of Dialkyl-1,1-diacetyl-8a-hydroxy-8-oxo-1,2,8,8a-tetrahydrocyclopenta-[a]indene-2,3 dicarboxylates  from the Reaction of Dialkyl-2-(1-acetyl-2-oxopropyl)-3 (tributylphosphoranylidene)succinates with Indene- 1,2,3-trione Ali Ramazani, Ebrahim Ahmadi, Leila Youseftabar Miri, Ali Jafari and Azam Heidari,  Asian J. Chem., Vol. 19, pp. 1575-1577 (2007).

 

27. Stereoselective Synthesis of Dialkyl-1,1-diacetyl-8a-hydroxy-8-oxo-1,2,8,8a-tetrahydrocyclopenta[a]-indene-2,3-dicarboxylates Ali Ramazani, Ebrahim Ahmadi, Leila Youseftabar Miri, Ali Jafari and Azam Heidari, Asian J. Chem., Vol. 19, pp. 1589-1591 (2007).

 

26. Microwave-Induced Conversion of Stabilized Phosphorus Ylides to Electron-Poor 2H-Cheromenes in the Presence of Silica Gel Powder in Solvent-Free Conditions Ali Ramazani; Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; December 2006; Volume 181 No. 12 Pages 2725–2729.   DOI: 10.1080/10426500600864395.

 

25. Microwave-Induced Stereoselective Conversion of Dialkyl 2-(1,1,3-Trioxo-1,3-dihydro-2H-1,2-Benzisothiazol-2-yl)-3-(triphenylphosphoranylidene)succinates to Dialkyl 2-(1,1,3-Trioxo-1,3-dihydro-2H-1,2-benzisothiazol-2-yl)-2-butendioates in the Presence of Silica-Gel Powder in Solvent-Free Conditions, Ali Ramazani;  Akram Abbasi Motejadded; Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; January 2006; Volume 181 No. 1 Pages 233-236.  DOI: 10.1080/104265090969838.

 

24. Synthesis and X-Ray Single Crystal Structure of Dialkyl 2-[1-(2,2-             Dimethylpropionyl)-3,3-dimethyl-2-oxobutyl]-3-(triphenylphosphoranylidene) succinates, Ali Ramazani, Ali Reza Kazemizadeh, Ebrahim Ahmadi, Katarzyna ´Slepokura, and Tadeusz Lis, Z. Naturforsch., 61b, 1128 – 1133(2006).

 

23. Microwave Induced Stereoselective Conversion of Dialkyl 2-(imido-N-yl)-3-(triphenylstibanylidene) Succinates  to Electron-poor(Z) – N – inylimides,  Ali Ramazani, Ebrahim Ahmadi and Nader Noshiranzadeh,  Asian J. Chem. Vol. 18 pp. 125-128 (2006).

 

22. Silica Gel Powder Catalyzed Intermolecular Wittig Reaction of Fluorine-Containing Stabilized Phosphorus Ylides with Ninhydrin in Solvent-Free Conditions, Ali Ramazani, Ali Reza Kazemizadeh, Ebrahim Ahmadi and Massoumeh Rahnema, Asian J. Chem. Vol. 18 pp. 701-703 (2006).

 

21. Stereoselective Synthesis of Dialkyl 1,1-Diacetyl-8a-Hydroxy-8-Oxo-1,2,8,8a-Tetrahydrocyclopenta[a]indene-2,3-Dicarboxylates From the Reaction of Dialkyl 2-(1-acetyl-2-oxopropyl)-3-(tributylphosphoranylidene) Succinates with Indene-1,2,3-Trione,  Ali Ramazani, Ebrahim Ahmadi and Nader Noshiranzadeh, Asian J. Chem. Vol. 18 pp. 704-706 (2006).

 

20. Microwave induced stereoselective conversion of dialkyl 2-(imido-n-yl)-3-(triphenylphosphoranylidene) butanedioates to electron-poor (Z)-N-vinylimides in the presence of Silica Gel Powder in solvent-free conditions, Ali Ramazani, Akram Abbasi Motijadded and Ebrahim AhmadiAsian J. Chem. Vol. 18 pp. 713-714 (2006).

 

19. Microwave induced stereoselective synthesis of alkyl Z-2-(2-amino-4-oxo- 1,3-thiazol-5(4H)-yliden)acetates from thiourea and dialkyl acetylenedicarboxylates in solvent-less conditions, Ali Ramazani, Ali Reza Kazemizadeh, Bijan Ganjeie and Ebrahim Ahmadi, Asian journal of chemistry, 17 (4): 2375-2378 OCT-DEC 2005.

 

  1. Microwave induced one-pot stereoselective synthesis of alkyl Z-2-[2-amino-4-oxo-1,3-selenazol-5(4H)-yliden)acetates in solvent-less conditions, Ali ramazani, Ebrahim Ahmadi, Bijan Ganjeie, Ali Reza Kazemizadeh and Ali Morsali, Asian journal of chemistry, 17 (4): 2371-2374 OCT-DEC 2005.

 

17. Synthesis of Highly Stabilized Phosphorus Ylides from Acetylenic Esters, CH-acids and Triphenylphosphine in Aqueous Media  Ali Ramazani, Leila Dolatyari, Ali Reza Kazemizadeh and Ebrahim Ahmadi, Asian J. Chem. Vol. 17 pp. 297-300 (2005).

 

16. Silica-Gel Catalyzed Stereoselective Conversion of Dialkyl 2-(Imido-N-YL)-3- (triphenylstibanylidene)succinates to Electron-Poor (Z)-N-Vinylimides in Solvent-Free Conditions,   Ali Ramazani; Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; September 2005; Volume 180 No. 9 Pages 2023–2027. DOI: 10.1080/104265090902787.

 

15. One-Pot Stereoselective Synthesis of Alkyl Z-2-[2-Amino-4-oxo-1,3-selenazol-5(4H)-yliden] Acetates, Ali Ramazani; Ali Morsali; Bijan Ganjeie; Ali Reza Kazemizadeh; Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; November 2005; Volume 180 No. 11 Pages 2439 – 2442.   DOI: 10.1080/104265090921164.

 

14. One-Pot, Three-Component Synthesis of Dialkyl 1,2-Dihydroquinoline-2,3-Dicarboxylates from Triphenylphosphine, Acetylenic Esters, and Amide Derivatives of 2-Aminobenzaldehyde in Aqueous Acetone,   Ali Ramazani;  Ebrahim Ahmadi;  Ali Reza Kazemizadeh;  Leila Dolatyari;  Nader Noshiranzadeh;  Issa Eskandari; Ali Souldozi,   Phosphorus, Sulfur, and Silicon and the Related Elements; November 2005; Volume 180 No. 11 Pages 2419 – 2422.    DOI: 10.1080/104265090921137.

 

13. Stereoselective Synthesis of Alkyl Z-2-(2-Amino-4-oxo-1,3-thiazol-5(4H)-yliden)Acetates in Solventless Conditions, Ali Ramazani; Ali Reza Kazemizadeh; Bijan Ganjeie; Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; November 2005; Volume 180 No. 11 Pages 2569-2572 .

 

12. One-Step Stereoselective Synthesis of Dialkyl 1,1-Diacetyl-8a-hydroxy-8-oxo-1,2,8,8a-Tetrahydrocyclopenta[a]indene-2,3-dicarboxylates from the Reaction of Dialkyl 2-(1-Acetyl-2-oxopropyl)-3- (tributylphosphoranylidene) Succinates with Indene-1,2,3-trione, Ali Ramazani; Ebrahim Ahmadi; Nader Noshiranzadeh, Phosphorus, Sulfur, and Silicon and the Related Elements; October 2005; Volume 180 No. 10 Pages 2285 – 2290. DOI: 10.1080/104265090920912.

 

11. Four-Component Synthesis of Dialkyl 2-(1,3-Dioxo-1,3-dihydro-2H-inden-2-yliden)-3-(2,2,2-trifluoroethoxy)succinates from Triphenylphosphine, Acetylenic Esters, 2,2,2-Trifluoroethanol, and Ninhydrin, Ali Ramazani; Ali Reza Kazemizadeh; Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; August 2005; Volume 180 No. 8 Pages 1781– 1784. DOI: 10.1080/104265090888405.

 

10. Stereoselective Syntheses of Alkyl Z-2-(2-amino-4-oxo-1,3-selenazol-5(4H)-ylidene)acetates in Solvent-Free Conditions, X-Ray Single Crystal Structure Analysis of Ethyl Z-2-(2-amino-4-oxo-1,3-selenazol-5(4H)-ylidene)acetate, A. Ramazani, A. Morsali, B. Ganjeie, A. R. Kazemizadeh, E. Ahmadi, R. Kempe, and I. Hertle zeitschrift fur naturforschung section b-a journal of chemical sciences 60 (5): 569-571 MAY 2005.

 

9. "Lead (II): misleading or merely hermaphroditic?", Soudi, A. A., Marandi, F., Ramazani, A., Ahmadi, A. and Morsali, A.,C. R. Chimie, 8, 157–168 (2005).

 

8. Conversion of in situ generated stabilized phosphorus ylides to chromene derivatives in solvent-free conditions, Ali Ramazani;  Liela Yousefi;  Ebrahim Ahmadi; Ali Souldozi, Phosphorus, Sulfur, and Silicon and the Related Elements; July 2004; Volume 179 No. 7 Pages 1459 – 1464.   DOI: 10.1080/10426500490463682.

 

7. Microwave induced stereoselective conversion of dialkyl 2-(imido-n-yl)-3- (triphenylphosphoranylidene)butanedioates to electron-poor (z)-n-vinylimides in the presence of iron(ii) sulfate powder in solvent-free conditions, Ali Ramazani; Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; July 2004; Volume 179 No. 7 Pages 1455-1457. DOI: 10.1080/10426500490463673.

 

6. Magnesium hydrogen sulfate powder catalyzed stereoselective conversion of dialkyl 2-(imido-N-yl)-3-(triphenylphosphoranylidene)- butanedioates to electron-poor (z)-N-vinylimides in solvent-free conditions, Ali Ramazani; Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; March 2004; Volume 179 No. 3 Pages 565-567. DOI: 10.1080/10426500490422218.

 

5. Crystal structure of diethyl 2-(dibenzoylmethyl)-3 (triphenylphosphoranylidene) succinate, Ramazani A., Dolatyari L., Kazemizadeh A. R., Ahmadi E, Torabi A. A.,  Welter R,  C41H37O6P Zeitschrift fur kristallographie-new crystal structures, 219 (2): 181-183, 2004.

 

4. Crystal structure of dimethyl (Z)-2(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)2-butenedioate, Ramazani A., Marandi F., Ahmadi E. and Morsali A., C14H11NO6, Zeitschrift fur kristallographienew crystal structures, 219 (2): 179-180, 2004.

 

3. Crystal structure of dimethyl 1-benzoyl-1,2-dihydro-2,3- quinolinedicarboxylate, Ramazani A., Ahmadi E, Torabi A. A., Welter R., Dolatyari L., Kazemizadeh A. R. and Souldozi A., C20H17NO5, Zeitschrift fur kristallographie-new crystal structures 219 (3): 243-244, 2004.

 

2. Manganese Dioxide is an Efficient Catalyst for the Stereoselective Conversion of Dialkyl 2-(Imido-N-yl)-3-(triphenylphosphoranylidene)butanedioates to Electron-Poor (Z)-N-vinylimides in Solvent-Free Conditions, Ali Ramazani; Ebrahim Ahmadi,    Phosphorus, Sulfur, and Silicon and the Related Elements; December 2003; Volume 178 No. 12 Pages 2659 – 2661. DOI: 10.1080/714040979.

 

1. Silica Gel Catalyzed Stereoselective Conversion of Dialkyl 2-(Imido- N -YL)-3-(triphenylphosphoranylidene)-butanedioates to Electron-Poor ( Z )- N -Vinylimides in Solvent-Free Conditions, Ali Ramazani; Ebrahim Ahmadi, Phosphorus, Sulfur, and Silicon and the Related Elements; October 2003; Volume 178 No. 10 Pages 2293–2295. DOI: 10.1080/713744565.

 

مقالات مقالات علمی - پژوهشی (ISC )

3. عاطفه سادات فرندپور، زهرا محمدنیا و ابراهیم احمدی، "بهينه سازي عوامل موثر بر اُليگومريزاسيون اتيلن به 1-هگزن توسط کاتاليزور­ کروميوم/اتيل هگزانوات"، مجله شیمی و مهندسی شیمی، داوری، شهریور 1396.

2. فرنوش کریمی، زهرا محمدنیا و ابراهیم احمدی، "پلیمریزاسیون رادیکالی انتقال اتم متیل‌متاکریلات توسط کاتالیزور بیس(2-دودسیل‌سولفانیل-اتیل)-آمین/مس‌برمید: مطالعه سینتیکی"، نشریه علوم و تکنولوژی پلیمر، داوری، شهریور 1396.

1 . ابراهيم احمدی و  سوسن يزدی، "تهيه و ساخت نانوفوتوکاتاليزور Ti/SBA-15 بسيار منظم برای تخريب آلاينده های سمی آب"، فصلنامه فن آوري هاي نوين در مهندسي محيط زيست و منابع تجديدپذير سال اول، شماره  2، پاييز 1393.

 

مقالات مقالات علمی - ترویجی

1. لیلا عظیم نوه سی، زهرا محمدنیا و ابراهیم احمدی، "پلی اتیلن سبک خطی، خواص، کاربرد و تولید به روش پلیمرشدن آبشاری اتیلن"، بسپارش، انتشار آنلاین از تاریخ 30 اردیبهشت 1396.

2. زهرا محمدنیا، ابراهیم احمدی و زینت رضازاده، "مروري بر توليد گزينشي 1-هگزن از اتيلن با استفاده از کاتاليزورهاي متالوسني پايه کروم"، پژوهش و توسعه فناوری پلیمر ایران، شماره 4، زمستان 1395.

 

Publications for Ebrahim Ahmadi (International conferences)

17.  E. Ahmadi, A. Malekzadeh, Z. Hamdi, A. Ramazani, Preparation of porphyrin doped nanosilica, 2st Iran International Zeolite conference(IIZC'10), April 29-30, 2010, Tehran University, Tehran, Iran.

 

16. E. Ahmadi, Z. Mohamadnia, Preparation, characterization and polymerization of chromium complexes grafted Al/SBA-15 catalyst, 2st Iran International Zeolite conference(IIZC'10), April 29-30, 2010, Tehran University, Tehran, Iran.

 

15. E. Ahmadi, M. Nekoomanesh Haghighi, A. Ramazani, Z. Mohamadnia, Preparation of porous polyethylene using Spherical SBA-15 supported Philips catalysts, 9th International Seminar on Polymer Science and Technology, Iran Polymer and Petrochemical Institute, Tehran, Iran, 17-21 October 2009, Oral presentation (The presentation is performed in English language).

 

14. E. Ahmadi, M. Nekoomanesh Haghighi, A. Ramazani, Z. Mohamadnia, Preparation, characterization and polymerization of [Cr(NO3)3.9H2O] complexes grafted SBA-11 and MCM-41 materials, 9th International Seminar on Polymer Science and Technology, Iran Polymer and Petrochemical Institute, Tehran, Iran, 17-21 October 2009, Oral presentation (The presentation is performed in English language).

 

13. E. Ahmadi, A. Ramazani, M. Nekomanesh Haghighi and Z. Mohamadnia, Preparation of Shish-Kebab and nano-fiber polyethylene using Cr/SBA-15 Catalysts, International Symposium “Supramolecular and NanoChemistry: Toward Applications” August 25-29, 2008, Kharkov, Ukraine.

 

12. Fatemeh Mohamadnia, Reza Ojani, Ebrahim Ahmadi, Zahra mohamadnia, Electrocatalytic oxidation of methanol on carbon paste electrode modified by nickel ions dispersed into SBA-15 nanoporous structure, International Catalysis Conference (ICC 2008), 28-30 April 2008, PA-107, Shahid Beheshti University, Tehran, Iran.

 

11. Reza Ojani, Ebrahim Ahmadi, Jahan-Bakhsh Raoof, Fatemeh Mohamadnia, Characterization of a carbon paste electrode containing organically modified nanostructure silica; Application in voltammetric ferricyanide detection, 1st Iran International zeolite conference(IIZC'08), April 29-May 1, 2008, Amirkabir University, Tehran, Iran, (IIZC-08-232).

 

10. E. Ahmadi, A. Ramazani, M. Nekoomanesh Haghighi, Z. Mohamadnia, Preparation of nano-silica supported chromium catalyst and its use for the preparation of nano-polyethylene, International Catalysis Conference(ICC 2008), 28-30 April 2008, PB-57, Shahid Beheshti University, Tehran, Iran.

 

9. Ali Ramazani, Ali Reza Kazemizadeh, E. Ahmadi, Nader Noshiranzadeh and Ali Souldozi, Synthesis and Reactions of Stabilized Phosphorus Ylides, ICPC 2007.

 

8. Ali Ramazani;  Akram Abbasi Motejadded; E. Ahmadi, Microwave-Induced Stereoselective Conversion of Dialkyl 2-(1,1,3-Trioxo-1,3-dihydro-2H-1,2-Benzisothiazol-2-yl)-3-(triphenylphosphoranylidene) succinates to Dialkyl 2-(1,1,3-Trioxo-1,3-dihydro-2H-1,2-benzisothiazol-2-yl)-2-butendioates in the Presence of Silica-Gel Powder in Solvent-Free Conditions, , The fourth Jordanian international conference of chemistry, 19-21 sept. 2005.

 

7. Ramazani A., Leila Dolatyari, Ali Raza Kazemizadeh and Ahmadi E.,environment – friendly synthesis of highly stabilized phosphorous from acetylenic esters, CH-Acids and triphenylphosphine in aqueous media, International Conference on Chemistry and Industry, Future Trends for the Third Millennium, December 11-14, 2004,  King Saud University, Kingdom of Saudi Arabia, Riyadh.

 

6. E. Ahmadi, M. Nekomanesh Haghighi, A. Ramazani and Z. Mohamadnia, Preparation and characterization of Cr/ SBA-15 Catalysts and its use for Ethylene Polymerization, The 8th International seminar on polymer science and technology (ISPST), 23-25 Octobr 2007, OP1030, 173, Sharif University of Technology, Tehran, Iran.

 

5. Z. Mohamadnia, E. Ahmadi, M. Rafienia, H. Mobedi, A. Nouri, Investigation of drug release and 1H-NMR analysis of the in situ forming systems based on poly(lactide-co-glycolide), The 8th International seminar on polymer science and technology (ISPST), 23-25 Octobr 2007, BPM1064, 86, Sharif University of Technology, Tehran, Iran.

 

4. A. Ramazani and E. Ahmadi,  Silica gel catalyzed stereoselective conversion of dialkyl 2-(imido-n-yl)-3-(triphenylstibanylidene)succinates to electron-poor (z)-n-vinylimides in solvent-free conditions, Transmediterranen symposium on Organometallic Chemistry and catalysis, Marrakech 5-7 may 2005.

 

3. Ali Ramazani, E. Ahmadi, Synthesis of 2h-chromene derivatives from in situ generated sabilized phophorus ylides via intramolecular wittig reaction in the presence of silica gel powder in sol vent- free conditions, 16TH International Conference on Phosphorus Chemistry (ICPC2004), July 4-9, 2004, International Convention Centre, Birmingham, UK.

 

2. A. Ramazani, A. R. Kazemizadeh, F. Marandi, E. Ahmadi, Microwave induced stereoselective of electoron – poor (z)-n- vinylimides phosphorus ylides in solwent–free conditions, 16TH International Conference on Phosphorus Chemistry (ICPC2004), July 4-9, 2004, International Convention Centre, Birmingham, UK.

 

1. A. Ramazani  and E. Ahmadi, Synthesis of electron-poor (z)-n-vinylimides in the presence of solid catalysts in solvent-free conditions,  International Conference on Chemistry and Industry, Future Trends for the Third Millennium, December 11-14, 2004,  King Saud University, Kingdom of Saudi Arabia, Riyadh.

 

 

Publications for Ebrahim Ahmadi (National conferences)

20 E. Ahmadi, Z. Mohamadnia, M. Nekoomanesh Haghighi, High activity ethylene trimerization catalyst based on new Cr-SNS ligands, 17th Iranian Seminar of Organic Chemistry, Mazandaran University, October, 2010.

 

19. N. Khosravi, A. Ramazani, A. Ramazani S. A, E. Ahmadi, M. Nourani, Preparation of appropriate polymers based on polyacrylamide for enhanced oil recovery in carbonate reservoir, 16th Iranian Seminar of Organic Chemistry, Zanjan University, August, 2009, poster presentation.

 

18. P. Azimzadeh Asiabi, A. sadigzadeh, A. Ramazani, E. Ahmadi, The effect of radiation cross-linking on mechanical and thermal properties of High density polyethylene (HDPE) and Low density polyethylene (LDPE), 16th Iranian Seminar of Organic Chemistry, Zanjan University, August, 2009, poster presentation.

 

17. Mohsen Valizadeh Holagh, Ali Ramazani, Ebrahim Ahmadi, Vinyltriphenylphosphonium salt mediated preparation of fully substituted furans and electron-poor imides from benzoic acid, cyclohexyl isocyanide and acetylenic esters, 16th Iranian Seminar of Organic Chemistry, Zanjan University, August, 2009, poster presentation.

 

16. E. Ahmadi, M. Nekoomanesh Haghighi, A. Ramazani and Z. Mohamadnia, Effect of nanosupport structure on activity of Cr/silica catalysts and morphology of prepared polyethylene, 16th Iranian Seminar of Organic Chemistry, Zanjan University, August, 2009, oral presentation.

15. Z. Mohamadnia, M. Nekoomanesh Haghighi, E. Ahmadi, and H. Salehi, A. Farhadi, Highly selective chromium-based ethylene trimerization catalysts with Bis-sulphanylamine ligands, 16th Iranian Seminar of Organic Chemistry, Zanjan University, August, 2009.

 

14. E. Ahmadi, A. Ramazani, M. Nekoomanesh Haghighi and Z. mohamadnia, SBA-15 promoted reaction of zwitterionic intermediate formed in situ from DMAD and isocyanide with iminium ion intermediate, 16th Iranian Seminar of Organic Chemistry, Zanjan University, August, 2009.

 

13. Z. Mohamadnia, E. Ahmadi, and H. Mobedi, 1H-NMR analysis of biodegradable polymeric systems based on poly(lactide-co-glycolide) and their drug release behaviors, 16th Iranian Seminar of Organic Chemistry, Zanjan University, August, 2009.

 

12. Reza Ojani, Ebrahim Ahmadi, Fatemeh Mohamadnia, Jahan-Bakhsh Raoof, Characterization of a carbon paste electrode containing organically modified nanostructure silica; Application in voltammetric ferricyanide detection, Third nanotechnology student conference, Oral (Shiraz), 2008.

 

11. Preparation of Polyethylene Nanofibers using Novel Generation of Phillips Catalysts, E. Ahmadi, M. Nekomanesh Haghighi, A. Ramazani and Z. Mohamadnia, The second nanotechnology student conference, Oral (Kashan), 2007.

 

10. Nanosilica–Based Organically Modified Carbon Paste Electrode as a Sensor for Ferricyanide Detection, Reza Ojani, Ebrahim Ahmadi, Jahan-Bakhsh Raoof, Fatemeh Mohamadnia, 7th Biennial Electrochemistry Seminar of Iran (7 BESI), Aug. 28-30, 2007.

 

9. Hydrogel Beads for Controlled Release of Betamethasone, Z. Mohamadnia, E. Ahmadi, M. J. Zohuriaan-Mehr, H. Mobedi, A. Jamshidi, 3rd Iranain Conference of Novel Drug Delivery Systems, 21tst– 22nd June 2007 , Tehran –Iran(Oral).

 

8. Silica gel powder catalyzed intermolecular wittig reaction of fluorin-containing stabilized phosphorus ylides with ninhydrin in solvent-free conditions, Ebrahim Ahmadi, Ali  Ramazani, Leila Youseftabar Miri, Ali Jafari,