Department: Chemistry Department

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Tilahun Yai

  • Title: Mr
  • Full Name:  Tilahun Yai
  • Nationality: Ethiopia
  • Academic Rank: Lecturer
  • College/institute: College of Natural Sciences
  • Department: Chemistry
  • Field of specialization: Physical Chemistry
  • Research interest: Synthesis of Nanostructured materials for Electrochemical (bio)sensor and Photocatalysis application
  • Publications:
  1. Tilahun Y. F*., Shimeles A. K., Dereje Y., Gebru G.; Simultaneous Electrochemical Determination of Paracetamol and Caffeine by using Activated Glassy Carbon Electrode, Analytical and Bioanalytical Electrochemistry, 2020, 12, 93-106. http://abechem.ir/No.%201-2020/2020,%2012(1),%2093-106.pdf
  2. Tadele KT, Abire TO, Feyisa TY. Green Synthesized Silver Nanoparticles using Plant Extracts as Promising Prospect for Cancer Therapy: A Review of Recent Findings. J Nanomed. 2021; 4(1): 1040.
  3. Teklu T., Tilahun Y. F*., Shimeles A. K., Gebru G., Dereje Y.; Simultaneous Voltammetric Determination of p-aminophenol and Paracetamol using Activated Glassy Carbon Electrode: Cyclic Voltammetry and Differential Pulse Voltammetry Study. Acta Chemica Iasi, 2020, 28 – 2, 146 – 162.
  • Contact Address:
  • Email: tilahunyai@gmail.com
  • Tel: +251 93 070 4505

Birkinesh Girma Alemu

Title: Mrs.

Full Name: Birkinesh Girma Alemu

Nationality: Ethiopian

Academic Rank: Lecturer

College/Institute: College of Natural Sciences

Department: Chemistry

Field of Specialization: Inorganic Chemistry

Research Interest:

  1. Synthesis, Characterizatio of Nanoparticles and their applications
  2. Synthesis and Characterization of metallic complexes and their applications

List of Publications:

Contact address

  1. O. Box: 378, Jimma University, Ethiopia

Office Tel.:

Cell Phone:+251-9-91-37-17-64

Fax:

E-mail Address: birkegirma1985@gmail.com

Kirubel Teshome Tadele

Title: Mr.

Full Name:  Kirubel Teshome Tadele

Nationality: Ethiopian

Academic Rank: Assistant professor

College/institute: College of Natural Sciences

Department: Chemistry

Field of specialization: Inorganic Chemistry

Research interest: Meat complexes and nanoparticles synthesis and their biological activities

Publications:

  1. Kirubel T. T., and Tilahun. W. T, Schiff bases and their metal complexes as potential anticancer candidates: A review of recent works. Anti-Cancer Agents in Medicinal Chemistry. 2019, 19(15), 1786 – 1795. DOI: 2174/1871520619666190227171716
  2. Kirubel T. T., and Gebeyanesh W. Z., Specific plant nutrients and vitamins that fortify immune system. In: Azamal H, Edr. Traditional Herbal Therapy for the Human Immune System. Taylor & Francis Books, 2 Park Square, Milton Park, Abingdon, 2021, 363-396. DOI: 10.1201/9781003137955-12
  3. Kirubel T. T., Temesgen O. A and Tilahun Y. F., Green Synthesized Silver Nanoparticles using Plant Extracts as Promising Prospect for Cancer Therapy: A Review of Recent Findings. Journal of Nanomedicine. 2021, 4(1), 1040.
  4. Kirubel T. T., Antioxidant activity of Schiff bases and their metal complexes: A recent review. Journal Pharmaceutical and Medicinal Research. 2017, 3(1), 73-77.
  5. Tamene S. S., Gutta G. M., Tilahun W. T. and Kirubel T. T., Green synthesis of copper oxide nanoparticle using Eichhornia crassipes leaf extract, its Antibacterial and Photocatalytic Activities. Current Nanomaterials,
  6. Tilahun Y. F. and Kirubel T. T., Nanocomposite Based Enzymless Electrochemical Sensors for Carbamate and Organophosphorus Pesticides Detection. Current Nanomaterials,

Contact Address:

Email: gebukiru@gmail.com/kirubel.teshome@ju.edu.et

Tel: +251972739922

Fax: –

P.O. Box: –

Kassim Kedir Fita

Title: Mr.

Full Name:  Kassim Kedir Fita

Nationality: Ethiopian

Academic Rank: Assistant Professor

College/institute: College of Natural Sciences

Department: Chemistry

Field of specialization: Analytical Chemistry

Research interest:

  • Mycotoxin Degradation in Food and Feeds, Specialization of Heavy Metals and Pesticide Analysis, Food Analysis, Spectroscopic Method Development, Food safety & Quality, Porous and Nano material based pollutants removal from waste water/water

Publications:

  1. Kedir, A. Gure, Y. Merdassa, Speciation and Mobility study of selected Heavy Metals in Kofe dumpsite soil of Jimma town, Jimma, Ethiopia. Ethiopian Journal of Environmental Studies and Management 10 (5), 629-641
  2. Dejene, K. Kedir, S. Mekonen, A. Gure, Determination of Selected Pesticide Residues from Gilgel Gibe (I) Hydroelectric Dam Reservoir and Its Tributaries, Jimma Zone, Ethiopia, International Journal of New Chemistry 7 (1), 14-29
  3. Gure, K. Kedir, F. Abduro, Heavy metal concentrations in fish tissues from Gilgel Gibe (I) Hydroelectric Dam Reservoir, Ethiopia, Journal of Applied Sciences and Environmental Management 23 (8), 1411-1416.
  4. Kedir, A. Gure, Y. Merdassa, Heavy Metals in Sediments of Gilgel Gibe I Hydroelectric Dam Reservoir and its Tributaries. Ethiopian Journal of Education and Sciences 15 (1), 18-28

Contact Address:

Email: kassimkedir08@gmail.com/kasim.kedir@ju.edu.et

Tel: +251917015817

Fax:

P.O. Box: 378

Jabessa Nagasa

  • Title: Mr.
  • Full Name:  Jabessa Nagasa
  • Nationality: Ethiopian
  • Academic Rank: Lecturer
  • College/institute: College of Natural Sciences
  • Department: Chemistry
  • Field of specialization: Physical Chemistry
  • Research interest: Electrochemistry & Nanoscience
  • Contact Address:
  • Email: jabesanagasa@gmail.com
  • Tel: 0961530724

Gadisa Chirfa Mosisa

  • Title:MR.
  • Full Name: Gadisa Chirfa Mosisa
  • Nationality: Ethiopian
  • Academic Rank: Lecturer
  • College/institute: College of Natural Sciences
  • Department: Chemistry
  • Field of specialization: Analytical Chemistry
  • Research interest: Food and environmental pollutant

Publications:

 Salting-out Assisted Liquid–Liquid Extraction for Analysis of Caffeine and Nicotinic Acid in Coffee by HPLC–UV/Vis Detector. Journal of Analysis and Testing volume 4, pages 298–306(2020)

Contact Address:

  • Email: gchirfa @gmail.com
  • Tel: (+251)-09-10-28-56-41
  • Fax:
  • pO. Box:378

Dele Abdissa Keneni

 Full Name: Mr. Dele Abdissa Keneni

Nationality: Ethiopian

Academic Rank: (M.Sc, Ass.Prof., PhD Candidate, Rhodes University, South Africa)

Employing Institution: Jimma University, Ethiopia (https://www.ju.edu.et)
College: College of Natural Science

 Department: Chemistry

 Specialization: Organic Chemistry

Research Interest:

  Marine and Terrestrial Natural Product Chemistry:

  1. Marine Organisms (Sponges, Algae and etc) and evaluation of their antimicrobial activity
  2. Traditional Medicinal Plants and evaluation of their antimicrobial activity

List of Publications

  • Dele Abdissa, Girma Geleta, Ketema Bacha, Negera Abdissa (2017). Phytochemical investigation of Aloe pulcherrima roots and evaluation for its antibacterial and antiplasmodial activities. PLoS one 12 (3), e0173882. https://doi.org/10.1371/journal.pone.0173882
  • Dele Abdissa Keneni, Gezahegn Faye Demissie, Melkamu Fayera Fufa, Shifera Demissie Tola. Extraction and Isolation of Compounds from roots of Kniphofia pumila, and Evaluation of their Antibacterial Activities in Combination with Zinc Chloride. Walailak J Sci & Tech 2020; 17(7): 631-638.
  • Muaz Shifa, Dele Abdissa, Tsegaye Girma Asere. Chemical Constituents of Rumex abyssinicus Roots and Evaluation of Its Antimicrobial Activities. Journal of the Turkish Chemical Society, Section A: Chemistry. JOTCSA. 2021;8(1):21–46
  • Asnakew Amare Tadesse, Negera Abdissa Ayana, and Dele Abdissa Keneni. Anthraquinones from the Roots of Kniphofia insignis and Evaluation of Their Antimicrobial Activities. Journal of Chemistry 2021, https://doi.org/10.1155/2021/6661116
  • Yirga Kassa, Tsegaye Deyou, Dele Abdissa. Antimicrobial Activities of Tetracyclic Triterpenoids from the Seeds of A.indica. Algerian Journal of Natural Products 7:1 (2019) 679-684 (DOAJ Open access)
  • Tahir Tikisa, Dele Abdissa and Negera Abdissa. Chemical constituents of Securidaca longipedunculata root bark and evaluation of their antibacterial activities. Ethiopian Journal of Education and Sciences. 14: 2, 2019, 1-9

Public Conference

  • Bule University First International Research Conference, 2019 (Oral Paper Presenter)
  • Microbiology Society Annual Research Conference, 2018 (Oral Paper Presenter)
  • Jimma University 9th Annual Research Conference of 2018 (Oral Paper Presenter)
  • Research Validation Workshop at Jimma University, 2018 (Oral Paper Presenter)

Invitation

  • Professional Skill training on Research Proposal Development, 2021 (via DAAD)
  • Royal Chemistry GC-MS Training Workshop, 2019
  • To the 4th International Oromo Studies Conferences at Jimma University, 2018.
  • To National Curriculum Review Workshop on Postgraduate Programs, 2018
  • Institutional Intellectual Property Policy and Development of Technology and Innovation Support Centers Organized by Jimma University, 2018

Contact address:

e-mail: deleabdissa@gmail.com

Mob.:  +251-913878714

P.O.Box 378

Ephrem Tilahun Woldemariam

Name: Ephrem Tilahun Woldemariam

Nationality: Ethiopian

Academic rank: Assistant Professor

College:  College of Natural Sciences

Department: Department of Chemistry

Education: M.Sc in Analytical Chemistry, Erasmus Mundus Master of Science (EMQAL), (PhD

Candidate of Human Nutrition)

Field of specialization: Analytical Chemistry, Quality in Analytical Laboratories (Food

Analysis), Chemometrics

Research interest:

Development of spectroscopic and separation methods for analyzing biological molecules and organic compounds in food samples. Food Safety and Quality, Micronutrients, Nutrition assessment, Food Analysis. Also interested to combine analytical techniques with different Chemometric techniques to improve efficiency of the methods.

Research Products

Thesis

  • Ephrem T.; Merid T., Determination of trace Metals in Commercially Available Khat ( Catha edulisForsk) in Addis Ababa, graduate project, department of chemistry, Addis Ababa University, 2009.
  • Ephrem T., Pedro Araujo and Bjørn Grung, Isolation of lipid classes from nutritional marine oils: improved extraction strategy and discrimination studies based on the positional distribution of omega-3 polyunsaturated fatty acids on triacylglycerol structures using liquid chromatography tandem mass spectrometry and principal component analysis, graduate project Department of Chemistry, University of Bergen, Norway (2014)

List of publications:

  • Tesfaye Nemomsa, Shimeles Addisu K., Ephrem Tilahun W. and Tadesse Haile F. : Indirect electrochemical determination of riboflavin (vb2) using 1, 4-benzaquinone modified carbon paste electrode, ACTA CHEMICA IASI , 28_1, (2020), 1 – 18.
  • Temesgen Takele N., Tesfaye Refera S and Ephrem Tilahun W.: Electrochemical          determination of 2,4-dichlorophenoxyacetic acid using bismuth film modified screen printed carbon electrode. Afr. J. Chem., 71(2018,), 160–165
  • Pedro Araujo, Ephrem Tilahun and Yingxu Zeng, A novel strategy for discriminating marine oils by using the positional distribution (sn-1,sn-2, sn-3) of omega-3  polyunsaturated fatty acids in triacylglycerols, Talanta,182(2018)32-37
  • Pedro Araujo, Ephrem Tilahun, Joar Fjørtoft Breivik, Bashir Abdulkader, Livar Frøyland, Yingxu Zeng, A simple liquid extraction protocol for overcoming the ion suppression of  triacylglycerols by phospholipids in liquid chromatography mass spectrometry studies, Talanta 148 (2016) 463-47.
  • EphremTilahun, Trace metals in Ethiopian Khat (book) publisher: VDM Verlag Dr. Müller Aktiengesellschaft& Co. KG, DudweilerLandstr. 99 66123 Saarbrücken, Germany, vdm-publishing.com, 2010.Available in www.amazon.com
  • Aster K., Ephrem T.,Assessment of Physicochemical Parameters of Sombo Spring Water in Jimma Town, South-West Ethiopia, Elixir Appl. Chem. 111 (2017) 48693-48696

 Oral Presentations

  1. Pedro Araujo, Ephrem Tilahun, Joar Fjørtoft Breivik, Bashir Abdulkader, Livar Frøyland, Yingxu Zeng, A simple liquid extraction protocol for overcoming the ion suppression of  triacylglycerols by phospholipids in liquid chromatography mass spectrometry studies, at the 8th Annual Research Conference of Jimma University, Held on April 27-28, 2017.

 

Contact address:

P.O.Box:5067
Cell phone: +251 911311780

Fax:+251 471112214

E-mail:ephrem.tilahun@ju.edu.et,  ephy2000@yahoo.com,  ephremtw271@gmail.com

Tamene Tadesse Beyene

  • Title: Dr
  • Full Name:  Tamene Tadesse Beyene
  • Nationality: Ethiopian
  • Academic Rank: Assistant professor
  • College/institute: College of Natural Sciences
  • Department: Chemistry
  • Field of specialization: Physical Chemistry/Electrochemistry/Chemical Engineering
  • Research interest:
  1. Surface modification and characterizations of materials for energy storage applications
  2. Modifications and engineering of the components secondary batteries to enhance their efficiency, stability, safety and energy density.
  • Preparations of an artificial solid electrolyte interface to improve safety and lifespan of active metals (Li, Na) batteries
  1. Working towards Reducing energy gaps of Metal Oxide nanomaterials to improve their performance
  • Publications: Lists of some selected publications
  1. Beyene TTet al., Decoupling the origins of irreversible coulombic efficiency in anode-free lithium metal batteries, Commun., 12, 1452 (2021). https://doi.org/10.1038/s41467-021-21683-6
  2. Beyene, TT et al., Concentrated Dual-Salt Electrolyte to Stabilize Li Metal and Increase Cycle Life of Anode Free Li-Metal Batteries Electrochem. Soc. 166, 1501 (2019) https://doi.org/10.1149/2.0731908jes
  3. ZT Wondimkun, and TT Beyene, et al., Binder-free ultra-thin graphene oxide as an artificial solid electrolyte interphase for anode-free rechargeable lithium metal batteries, JPS, 450, 227589, (2020) https://doi.org/10.1016/j.jpowsour.2019.227589
  4. MA Woret, and TT Beyene, et al., Mechanistic understanding of the Sulfurized-Poly(acrylonitrile) cathode for lithium-sulfur batteries. Energy Strage material., 26, 483-493 (2020)  https://doi.org/10.1016/j.ensm.2019.11.022
  5. Beyene, TT. and BA Jote et al., Effects of Concentrated Salt and Resting Protocol on Solid Electrolyte Interface Formation for Improved Cycle Stability of Anode-Free Lithium Metal Batteries. ACS Appl. Mater. Interfaces, 11, 35, 31962–31971 (2019) https://doi.org/10.1021/acsami.9b09551
  6. BW Olbasa TT Beyene et al., High-Rate and Long-Cycle Stability with a Dendrite-Free Zinc Anode in an Aqueous Zn-Ion Battery Using Concentrated Electrolytes ACS Appl. Energy Mater., 3, 5, 4499–4508 (2020) https://doi.org/10.1021/acsaem.0c00183
  7. TM Hagos and TT Beyene et al., Dual electrolyte additives of potassium hexafluorophosphate and tris (trimethylsilyl) phosphite for anode-free lithium metal batteries., Electrochimica-Acta 316, 52-59 (2019) https://doi.org/10.1016/j.electacta.2019.05.061
  8. TT Beyene et al., Effect of diethyl carbonate solvent with fluorinated solvents as electrolyte system for anode free battery 461, 228102, (2020) https://doi.org/10.1016/j.jpowsour.2020.228102
  9. TT Beyene et al., Roles of film-forming additives in diluted and concentrated electrolytes for lithium metal batteries: A density functional theory-based approach. Electrochemistry Communications, 113, 106685, (2020) https://doi.org/10.1016/j.elecom.2020.106685
  10. KG Motora and TT Beyene Determination of Caffeine in Raw and Roasted Coffee Beans of Ilu Abba Bora Zone, South West Ethiopia, Indo Am. J. Pharm Res., 7, 463-70 (2017)