Publications !!


1.   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.

2.  Idris Yazgan, Ayfer Akgu, Lauren E Cronmiller, Ali Akgul, JingZhang, 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.

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

4. Maedeh Mohammadifar, Idris Yazgan, Omowunmi Sadik, and SeokheunChoi, Green Biobatteries: Hybrid Paper-Polymer Microbial Fuel Cells, Advanced Sustainable Systems, in-print, 2018.

5. Mohomodou Maiga, Idris Yazgan, Victor Kariuki, Dilek OdaciDemirkol, 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.

6. 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.


1.   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.

2. 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).

3. Francis J. Osonga, Joab O. Onyango, Samuel K. Mwilu, NaomihM.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.

4. S.M. Rodrigues, P., Demokritou, N. Dokoozlian, C. Hendren, B.Karn, M. S. Mauter, O. A. Sadik, M. Safarpour, J. Unrine, J., Viers, P. Welle, J. White, M. Wiesner and G. V. Lowry, Nanotechnology for Sustainable Food Production: Promising opportunities, and scientific challenges, Environ. Sci.: Nano, 2017, 4, 767-781.

5. E. Cho, M. Mohammadifar, and S. Choi, ¡°A Single-use, Self-powered, Paper-based Sensor Patch for Detection of Exercise-induced Hypoglycemia,¡± Micromachines, VIP Feature Article (Invited), 8, 265, 2017.

6. M.  Mohammadifar and S. Choi, ¡°A Papertronics, On-demand and Disposable Biobattery: Saliva-activated Electricity Generation from Lyophilized Exoelectrogens pre-inoculated on Paper,¡± Advanced Materials Technologies, 2, 1700127, 2017.


1.    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 Novel Shapes and Sizes, RSC Advances, 2016, 6, 2302.

2.     Kun Xiang, Yinglei Li, William Ford, Walker Land, David Schaffer, RobertCongdon, Omowunmi Sadik, Automated Analysis of Food-borne Pathogens using a Novel Microbial Cell Culture, Sensing and Classification System, Analyst, 2016, 141, 1472 – 1482.

3.    Victor M.  Kariuki , Sohaib A Fasih-Ahmad, Francis J Osonga and Omowunmi A. Sadik, Electrochemical Sensor for Nitrobenzene using ¥ğ-conjugated Polymer-embedded Nanosilver, Analyst 2016, 14, 2259-2269, DOI: 10.1039/C6an00029k.

4.    Veronica Okello, Francis Osonga,Michael Knipfing, Victor Bushlyar & Omowunmi Sadik, Total Removal of Lead in Water and Sediments using Quercetin and Other Flavonoids, Environmental Science: Processes & Impacts, 2016, 18, 306 – 313, DOI: 10.1039/C5EM00580A.

5.    Victor M.  Kariuki · Jing Zhang , Magdalena Parlinska, Omowunmi Sadik, 3D ¥ğ-Conjugated Poly(amic) Acid Polymer as Support Matrices for Ethanol Electro-oxidation on Palladium and Platinum Catalysts, Electrocatalysis, 2016 (In Press), DOI 10. 1007/s12678-016-0307-0.

6.   A. Fraiwan, H. Lee, and S. Choi, ¡°A Paper-based Cantilever Array Sensor: Monitoring Volatile Organic Compounds with Naked Eye,¡± Talanta, in-print, 2016.

7.     A. Fraiwan,  L. Kwan, and S. Choi, ¡°A Disposable Power Source in Resource-limited Environments: A Paper-based Biobattery Generating Electricity from Wastewater,¡± Biosensors and Bioelectronics, 85, 190-197, 2016.

8.    A. Fraiwan, and S. Choi, ¡°A stackable, Two-chambered, Paper-based Microbial Fuel Cell,¡± Biosensors and Bioelectronics, 83, 27-32, 2016 .

9.    X. Wei, H. Lee, and S. Choi, ¡°Biopower generation in a microfluidic bio-solar panel,¡± Sensors & Actuators: B. Chemical, 228, pp.151-155, 2016

10.    C. Fischer, A. Fraiwan, and S. Choi, ¡°A 3D paper-based enzymatic fuel cell for self-powered, low-cost glucose monitoring,¡±  Biosensors and Bioelectronics, 79, pp.193-197, 2016.

11.    W. Yang, X. Wei, A. Fraiwan, C.G. Coogan, H. Lee, and S. Choi, ¡°Fast and Sensitive Water Quality Assessment: A uL-scale Microbial Fuel Cell-based biosensor Integrated with an air-bubble trap and electrochemical sensing functionality,¡± Sensors & Actuators: B. Chemical, 226, pp.191-195, 2016

12.    G. Choi and S. Choi, ¡°Cellular Flow in Paper-based Microfluidics,¡± Sensors & Actuators: B. Chemical, In print, 2016.

13.    S. Choi, ¡°Powering point-of-care diagnostic devices,¡± Biotechnology Advances, Review Article, 34, pp. 321-330, 2016.