Selected Publications

  1. Simon Waihenya, Pelin Şenel,  Francis J. Osonga, Taner Erdoğan, Filiz Altay, Ayşegül Gölcü, Omowunmi A. Sadik, Mechanism of interactions of dsDNA binding with apigenin and its sulfamate derivatives using multispectroscopic, voltammetric and molecular docking studies, ACS Omega, 6 (8), 5124-5137, 2021.
  2. Idris Yazgan, Francis J. Osonga, Roland M. Miller, Victor M. Kariuki, Jiang Zhang, Jun Feng, Zakiya Skeete, Heather Crapo, Jürgen Schulte &Omowunmi A. Sadik, Greener One-Pot Synthesis of Gold Nanoparticle Glycoconjugates using Functionalized Sugars, ACS Agric. Sci. Technol. 2021, 1, 4, 379–389.

  3. Francis J. Osonga, David C. Luther, & Omowunmi A. Sadik, Reactivity, mechanism, and stability of aqueous-based synthesized gold nanoparticles using apigenin triphosphate as a capping and stabilizing agent, ACS Omega (In Press) 2021.

  4. Francis J. Osonga,   Sanjay Kalra,  Roland M. Miller,  Daniel Isika  and  Omowunmi A. Sadik, Synthesis, characterization and antifungal activities of eco-friendly palladium nanoparticles, RSC Adv., 2020,10, 5894-5904
  5. Francis J. Osonga, Ali Akgul, Idris Yazgan, Ayfer Akgul, Gaddi B. Eshun, Laura Sakhaee,  and Omowunmi A. Sadik, Size and shape-dependent antimicrobial activities of silver and gold nanoparticles: A model study as potential fungicides, Molecules, 2020, 25, 2682.
  6. Jones A. Kapeleka, Elingarami Sauli, Omowunmi Sadik, and Patrick A. Ndakidemi, PONE-D-20-01490, Co-exposure risks of pesticides residues and bacterial contamination in fresh fruits and vegetables under smallholder horticultural production systems in Tanzania
    PLoS ONE 15(7), 2020.
  7. Francis J. Osonga, Victor M. Kariuki, Victor M. Wambua, Sanjay Kalra, Bruno Nweke, Roland M. Miller, Mustafa Çeşme, and Omowunmi A. Sadik, Photochemical Synthesis and Catalytic Applications of Gold Nanoplates Fabricated using Quercetin Diphosphate macromolecules, ACS Omega 2019 4 (4), 6511-6520.
  8. Francis J. Osonga, Ali Akgul, Roland M. Miller, Gaddi B. Eshun, Idris Yazgan, Ayfer Akgul, Omowunmi A. Sadik, Antimicrobial Activity of a New Class of Phosphorylated and Modified Flavonoids, ACS Omega 2019, 4, 12865-12871.
  9. Idris Yazgan, Ayfer Akgu, Lauren E. Cronmiller, Ali Akgul, Jing Zhang, Victor Kariuki, Francis Osonga, Abbey McMahon, Yang Gao, Seokheun Choi, Omowunmi A Sadik, Selective Detection of Penicillium italicum using Gold Nanoparticles and Carbohydrate-lectin Interactions at Paper and other Substrates, ACS Sensors, 3, 648−654, 2018.
  10. Omowunmi A Sadik, Idris Yazgan, Orhan Eroglu, Peng Liu, Sarah T. Olsen, Alecia M. Moser, Phillip G. Sander, Courage Tsiagbe, Kei Harada, Saeed Bajwa, Christian D. Tvetenstrand, Lijun Yin, Peter Gerhardstein, Objective Pain Analysis Using Serum Cyclooxygenase-2 and Inducible Nitric Oxide Synthase in American Patients, Clinical Chemistry, 484, 278-283, 2018.
  11. Francis J. Osonga, Phuong Le, David Luther, Laura Sakhaee, and Omowunmi A. Sadik, Water-based synthesis of gold and silver nanoparticles with cuboidal and spherical shapes using luteolin tetraphosphate at room temperature, Environmental Science: Nano, 5, 917, 2018.
  12. Maedeh Mohammadifar, Idris Yazgan, Omowunmi Sadik, and Seokheun Choi, Green Biobatteries: Hybrid Paper-Polymer Microbial Fuel Cells, Advanced Sustainable Systems, 2018, 2 (10), 1800041.

  13. Mohammaadifar; J. Zhang; I. Yazgan; O. Sadik; S. Choi. Power-on-paper: Origami-inspired Fabrication of 3-D Microbial Fuel Cells. Renewable Energy, 118, 696-700, 2018.

  14. Mohomodou Maiga, Idris Yazgan, Victor Kariuki, Dilek Odaci Demirkol, Omowunmi A. Sadik and Suna Timur, Brilliant green sequestered poly (amic) acid film for dual-mode detection: Fluorescence and electrochemical enzymatic biosensor, Sensors & Actuators, B 256, 71-78, 2018.

  15. Francis J. Osonga, Ali Akgul, Idris Yazgan, Ayfer Akgul, Renata Ontman, Victor M. Kariuki, Gaddi Eshun & Omowunmi A. Sadik, Quercetin phosphate derivatized anisotropic silver nanoparticles inhibit growth and change the expression of virulence genes in Escherichia coli SM1, RSC Advances, 8, 4649 – 4661, 2018.

  16. Victor M.  Kariuki, Jason C Hoffemeir, Idris Yazgan, and Omowunmi A. Sadik, Seedless synthesis and SERS characterization of multi-branched gold nanoflowers using water-soluble polymers, Nanoscale, 2017, 9, 8330-8340.
  17. Jing Zhang, Idris Yazgan, Victor M. Kariuki, and Omowunmi A. Sadik, Poly (amic) acid improves the efficiency and stability of PtCr Nanoparticle Catalyst during Ethanol Oxidation Reaction, Journal of Electrochemical Society, 164 (12) H701-H706, 2017, 10.1149/2.0211712jes.
  18. Francis J. Osonga, Joab O. Onyango, Samuel K. Mwilu, Naomih M.Noah, Jürgen Schulte, Ming An & Omowunmi A. Sadik, Synthesis and characterization of novel flavonoid derivatives via sequential phosphorylation of Quercetin, Tetrahedron Letters 58, 2017, 1474–1479).
  19. Kariuki, V. M., Panetier, J., Schulte, J., and Sadik, O. A. (2016) Directional Templating Mechanisms of Anisotropic Nanoparticles Using Poly (Pyromellitic Dianhydride-p-Phenylene Diamine), The Journal of Physical Chemistry C.. 2016, 120 (37), pp 21027–21036, DOI: 10.1021/acs.jpcc.6b03369.
  20. Francis J. Osonga, Idris Yazgan, Victor Kariuki, David Luther, Apryl Jimenez, Phuong Le & Omowunmi A. Sadik, Greener Synthesis and Characterization, Antimicrobial and Cytotoxicity Studies of Gold Nanoparticles of Different Shapes and Sizes, Journal of Total Environment, 563-564, 977-986, 2016, doi:10.1016/j.scitotenv.2015.12.064.
  21. Sadik O. A., Du N., Kariuki V., Okello V., &   Bushlyar V., Current and Emerging Technologies for the Characterization of Nanomaterials, ACS Sustainable Chemistry & Engineering, 2, 1707-1716, 2014.  
  22. Veronica A. Okello, Ailing Zhou, Jane Chong, Michael T. Knipfing, David Doetschman & Omowunmi A. Sadik, Reduction of Hexavalent Chromium using Naturally-derived Flavonoids, Environmental Science & Technology, 46 (19),  10743–10751, 2012.
  23. Ngundi M. Sadik O.A., Suye S., Takashi Y, “First Comparative Reaction Mechanisms for Estrogens and Environmental Hormones, Electrochemistry Communications, 5, 61-67, 2003.
  24. Breimer M.,  Yevgheny E., Sadik O. A., “Incorporation of Metal Particles in Polymerized Organic Conducting Polymers - A Mechanistic Insight,” Nano Letters, 1 (6), 305, 2001.