East Tennessee State University - Chemistry
Accelerated Bachelor's of Science
Registered Nursing/Registered Nurse
Director (ETSU International Choir
2017 - 2018)
East Tennessee State University
Magna Cum Laude
Master’s Degree
Chemistry
Graduate and Professional Student Association (GPSA) ETSU
American Chemical Society
East Tennessee State University
Master's Degree
Thesis titled “Growth performance
bioconcentration of mineral elements and assessment rhizosphere microorganisms of African Yam Beans
Sphenostylis stenocarpa (Hoechst ex. A. Rich.) Harms grown on dumpsite soils in Benin City ”
2014. Published in International Journal of Microbiology and Mycology
1(1): 23 – 30 and Journal of Basic and Applied Sciences
357–365.\n\nCONFERENCES PAPERS\n1. Assessment of rhizosphere microorganism and mineral element bioconcentration of Sphenostylis stenocarpa Hoshst Ex. A. Rich Harms grown on two dumpsite soils in Benin City.\n\n2. Growth response and yield performance of Sphenostylis stenocarpa Hoshst Ex. A. Rich Harms grown on two dumpsite soils in Benin City. OSAZEE J.O. and Mgbeze
G. C. \n\nBoth papers presented at the 22nd Annual Conference of the Botanical Society of Nigeria (BOSON) organized by the University of Nigeria
Nsukka between 26th – 29th May
Plant Biology and Biotechnology (Environmental Plant Physiology/Phytoremediation Technology Option)
University of Benin
PhD Grade (GPA = 4.3/5.0)
Bachelor's Degree
Research Project titled “Microorganisms contaminating Pepper (Capsicum species) in a local market in Benin City
Nigeria”
2008. Published in Nigerian Journal of Life Sciences
1(2): 92 – 95.\n\n
Microbiology
General (GPA=3.5/5.0)
Class Representative Microbiology
2007 and 2008
\nSports Director - Christian Community on Campus (CCC) University of Benin (2007 - 2008).
University of Benin
Second Class Upper Division
Registered Nurse
Tennessee State Board of Nursing
Associate's Degree (Diploma)
Research Project titled \" Microbial Spoilage of Banana and Plantains\"
Applied Microbiology
University of Benin
Upper Credit
Drug Discovery and Evaluation
Start-ups
PowerPoint
Statistics
Laboratory
New Business Development
Entrepreneurship
Product Development
Bioremediation
Strategic Planning
Organic Synthesis
Business Strategy
DNA Barcoding
Data Analysis
Research
Microbiology
Microsoft Excel
Chemistry
Public Speaking
Science
In-vitro screening of antibacterial potentials of Aspilia africana leaves.
Ogunsan
F. E
Daniel
O. E
ABSTRACT \n\nIn-vitro screening of antibacterial potentials of aqueous
ethanolic and methanolic extracts of\nAspilia africana leaves was carried out using agar well diffusion method. Data obtained from\nthis study indicated that the leaf extracts of A. africana possessed antibacterial activity against\nStaphylococcus aureus
Pseudomonas aeruginosa
and Klebsiella pneumoniae. The\nmethanolic and ethanolic extract of A. africana showed antibacterial activity with the\ndiameter of zone of inhibition of 9.0 - 16.0 mm and 7.17 - 14.17 mm against S. aureus
8.0 –\n14.67 mm and 8.83 - 13.17 mm against K. pneumonia and 7.0 - 14.0 mm and 7.50 - 12.33 mm\nagainst P. aeruginosa respectively. Methanolic extract of A. africana was observed to be\nmore potent
inhibiting all isolates thus showing higher antibacterial activity than the\nethanolic and aqueous extracts. The efficacy of the extracts was further exhibited as the S.\naureus used for the study
was resistant to the positive control (gentamicin) while been\nsensitive to the extracts. The test organisms were not sensitive to the extractants alone. The\nefficacy of the extracts towards inhibition of the micro organisms increased with increased\nconcentration. The Minimum Inhibitory Concentration and Minimum Bactericidal\nConcentration of the extracts on the test organisms also increased in the following order;\naqueous < ethanolic < methanolic. Findings from this study further showed that plants are\npotential sources of new drugs for treating infections caused by these antibiotic resistant\nclinical pathogens.\n\n\nKey words: Antibacterial activity
A. africana
agar well diffusion assay
methanolic extract.
In-vitro screening of antibacterial potentials of Aspilia africana leaves.
Oziengbe
E. O
Antifungal activity of copper sulphate against Colletotrichum gloeosporioides.
Molecular Docking
Synthesis and Evaluation of Pyrrolo[2
1-c][1
4]benzodiazepines Derivatives as Non-β-lactam β-lactamases Inhibitors
Ikhajiagbe
B
Chijioke – Osuji
C. C.
Abstract \nThis study investigated the heavy metal contents and microbial diversity of waste engine oil- polluted soil in some public and commercial centres in Benin City metropolis
Nigeria. The study was carried out in four Local Government Areas (Ikpoba Okha
Ovia North East
Egor and Oredo) within Benin Metropolis; the administrative headquarters of Edo State of Nigeria. Certain plots within the study area were selected based on the presence of waste engine oil spill on the ground
either due to activities of mechanics
parked vehicles
stationary diesel engines
or oil dump sites. However
in the present study only mechanic workshops (MW)
bakeries (BK)
generating plant houses (GN)
as well as spare part dealer shops (SP) located within the City were selected. Field reconnaissance studies were carried to estimate the extent of pollution on surrounding soil
using the presence and absence of some flora and fauna
and developmental defects on some flora. Top soil (0 - 10 cm) was randomly collected from about 30 cm from the periphery of the spill sites and then pooled together to obtain composite samples. These were labelled appropriately
and immediately transported in polythene bags
covered with aluminium foil papers
to the laboratory for heavy metal and microbial assay. Keywords: Hydrocarbons
heavy metal
waste engine oil
bio-remediation.
Heavy metal contents and microbial diversity of waste engine oil – polluted soil in some public and commercial centres in Benin City metropolis
Nigeria.
Victoria Palau
Crystal Whitted
Dobrusia Bialonska
Synthesis and biological activity of fused tetracyclic Pyrrolo [2
1- c][1
4]benzodiazepines.
G. C. Mgbeze
Survey of dumpsite plant composition
assessment of rhizosphere microorganisms and growth performance of Sphenostylis stenocarpa grown on two dumpsite (CAPITOL and NITEL ROAD) soils in Benin City was investigated. Control treatment was top soil. A total of 9 and 30 flora were observed at the CAPITOL and NITEL ROAD dumpsites respectively. Analysis of the rhizosphere soils of the plants grown in dumpsite soils at different amendments showed a total heterotrophic bacterial count ranging from 1.57 x 10^4 to 4.18 x 10^4cfu/g and a total heterotrophic fungal count in the various rhizosphere soils ranged from 5.05 x 10^3 to 1.68 x 10^4 cfu/g. The bacterial isolates from the rhizosphere soil samples were Arthrobacter sp.
Bacillus sp
Pseudomonas sp.
Escherichia coli
Enterobacter sp.
Klebsiella sp.
Micrococcus sp. and Staphylococcus sp. The fungal isolates were Aspergillus sp
Mucor sp
Fusarium sp
Penicillium sp
Trichoderma sp. and Saccharomyces sp. Bacillus sp.
Pseudomonas sp.
Penicillium sp. and Aspergillus sp. Aspergillus sp. 100 % (present in all dumpsite soils analyzed) had the highest frequency of occurrence amongst the isolates.Percentage seedling emergence was significantly reduced from 86.67± 13.33 % - 100.00 ± 0.00 % in control (top) soil to 60.00 ± 0.00 % to 93.33 ± 6.67 % in CAPITOL dumpsite soil. Shoot height at 6 weeks after planting (WAP) was significantly (p < 0.05) increased from 78.33± 18.53 cm in the control soil through 131.50 ± 18.79 cm in the CAPITOL dumpsite soil to 186.33 ± 13.68 cm in NITEL road dumpsite soil
all without amendment. Number of leaves at 6 WAP increased on addition of FYM in both soil types. In all parameters observed
it was noted that the control treatment did better than the plants grown in the dumpsite soils with increased amendment.
Assessment of Floristic
Microbial Composition and Growth of Sphenostylis stenocarpa (Hochst Ex A. Rich) in Soil from Two Dumpsites in Benin City
Nigeria
Carla Slebodnick
The rapid emergence of antimicrobial resistance has threatened the efficacy of first-line antibiotic therapeutics and presents health care systems with serious challenges. There is an urgent need to design and develop both additional therapeutic alternatives and enhanced antibacterial stewardship. Production and dissemination of β-lactamases as the major cause of bacterial resistance to β-lactam antibiotics initiates the catalytic hydrolysis and therefore
inactivates the β-lactams. A program was initiated to discover a series of novel non-β-lactam inhibitors containing 7-membered ring dilactam scaffolds to explore potent inhibitors of serine β-lactamases. All designed compounds 1-13 passed the Lipinski’s rule of five test which is used to identify potential drug-like compounds and were docked into the active site of TEM-1 β-lactamase using ParDOCK software. Pyrrolo[2
1-c][1
4]benzodiazepine (PBD) derivatives 1-7 were synthesized and the association of ligands with purified enzymes in solution was examined. The competitive enzyme inhibition kinetics results have shown that PBDs are quite weak inhibitors when tested against TEM-1 and P99. The limited inhibitory activity of the compounds 1-7 was assumed to happen due to the lack of solubility and bulky nature of the molecules
thus limiting the optimal ligand-enzyme interactions. Analogs 11-13 were further synthesized to reduce the steric hindrance of the PBDs while promoting the electrophilicity of the active lactam. Compounds 8-13 were also exhibited low inhibitory activity against both enzymes.
Structure-Based Discovery and Synthesis of Pyrrolo[2
1-c][1
4]-benzodiazepine Derivatives as Non-β-lactam Serine β-lactamase Inhibitors
Adesanmi
E. A
Daniel
O. E
ABSTRACT \nThe antibacterial efficacy of crude aqueous
ethanolic and methanolic extracts of Ocimum gratissimum and Ageratum conyzoides L. against Staphylococcus aureus
Pseudomonas aeruginosa and Escherichia coli weredetermined using disc diffusion method. All the extracts (aqueous
ethanol
methanol extracts) showed marked antibacterial activity. Results obtained revealed that methanolic extracts were more potent inhibiting all isolates with zones of inhibition ranging from 7 mm – 17 mm for A. conyzoides L. and 9 mm – 19 mm for O. gratissimum. Ethanolic extracts showed 7 mm – 16 mm for both plants. Aqueous extracts showed the least with diameter zones of inhibition ranging from 7mm – 12 mm for A. conyzoides L. and 6 mm – 10 mm for O. gratissimum. When the antibacterial activity of each of the plant extracts were compared for aqueous
ethanol and methanol extracts
there was no observable difference noticed in their spectra of activity. The efficacy of both plants towards inhibition of the micro organisms increased with increased concentration. The antibacterial activity of the extracts could be enhanced if the components were purified. These plants therefore
are potential sources of new drugs for treating infections caused by these clinical pathogens. \n\nKeywords:\n Disk diffusion method
antimicrobial activity
A. conyzoides
O. gratissimum
methanolic extract.
Comparative analysis of Ageratum conyzoides L. and Ocimum gratissimum extracts on some clinical bacterial isolates.
Daniel
E. O.
Obayagbona
N. O
Abstract\nSeveral methodologies were utilized to evaluate the microbiological and physico chemical properties of top soil samples bored from four municipal waste dumpsites and a farmland (control sample) all located in Benin City
Edo State. The soil samples were obtained during the month of January
2013. The mean aerobic bacterial counts for the soil samples ranged from \n9.7 × 10^3 cfu/g for the control soil to 1.80 × 10^4 cfu/g for the soil sourced from the dump site at Ikheuniro. The mean heterotrophic fungal counts varied from 7.0 × 10^2 cfu/g for capitol dumpsite to 3.3 × 10^3 cfu/g for the control soil. Ten (10) microbial isolates were characterized and identified; Bacillus sp.
Pseudomonas sp.
Aeromonas sp.
Enterobacter sp.
Klebsiella sp. and Staphylococcus sp.
Aspergillus sp.
Mucor sp.
Saccharomyces sp. and Fusarium sp. respectively. Both Bacillus sp. and Pseudomonas sp. were the most dominant amongst the bacterial isolates whilst Staphylococcus sp. was the least occurring bacterial isolate. Aspergillus sp. was the highest occurring fungal isolate while the least isolated fungal culture was Saccharomyces sp. The physico chemical results showed values which ranged from 5.60 to 8.08
164.00 μS/cm to 540.00 μS/cm
2.378 mg/kg to 3.444 mg/kg
0.009 mg/kg to 0.016 mg/kg for pH
electrical conductivity
sulphate and cadmium. Despite the positive impacts of the dumped municipal wastes on the microbial and organic properties of the analyzed soils
disposal of municipal wastes in open dump sites is an archaic and unsustainable option in the management of municipal wastes.
Microbiological and Physiochemical Analyses of Top soils obtained from four municipal waste dumpsites in Benin City
Nigeria.
Daniel
E.O.
Iseh
E.C.
Daniel
E.O.
OSAZEE
J.O. And Iseh
E.C. (2013). Total Microbial count and nutritional analysis of four weaning foods sold in Benin City. NISEB Journal
13 (3&4): 61 – 64.\n\nABSTRACT: Four (4) different weaning food samples purchased from Oba market located in Benin City
Edo State
Nigeria encoded A
B
C and Ogi (Nigerian indigenous weaning food) respectively were analyzed for their microbial and nutritional content in this study. Enumeration of total aerobic viable count was done using Nutrient agar. Eosin methylene blue (EMB) agar was used for coliform count
Salmonella - Shigella agar was used for Salmonella and Shigella count
mannitol salt agar for staphylococcal count and Sabouraud dextrose agar for mould and yeast counts. Total aerobic counts of organisms in weaning food C (21 ± 1.4 ×103 cfu g -1) was significantly (P< 0.05) higher while weaning B and A had lowest aerobic count of 0.5 ± 0.04 ×103 cfu g -1 and 0.5 ± 0.07 ×103 cfu g -1 respectively. Ogi has a total aerobic count of 1.0 x 104. No Salmonella - Shigella count was observed in all weaning foods sampled. Coliform count and fungi and mould counts were only observed in Ogi and weaning food C. High percentage carbohydrate (73.75 ± 0.61) and moisture (9.3 ± 0.8) was observed in ogi. \nKeywords: Total aerobic counts
Weaning food
Microbial analysis
Nutritional analysis
coliform. \n
Total Microbial count and nutritional analysis of four weaning foods sold in Benin City.
I am passionate about research and developing new products that would make the world a better and safer place to live in. With the increase in antimicrobial resistance of deadly pathogens world over
increased cases of neurodegenerative diseases and cancers
there is need for more researches in these area to curb the mortality caused by these diseases and their causative agents. This is what drives my research sense currently.
Joseph Osamudiamen
Osazee
The Evangelical Lutheran Good Samaritan Society
Johnson City Medical Center
Johnson City
East Tennessee State University
Gracefield Farms
ETSU Department of Intercollegiate Athletics
Language & Culture Resource Center
East Tennessee State University
Johnson City
Tuition Scholar
East Tennessee State University
Dr Abbas Shilabin Lab
Department of Chemistry
ETSU
Johnson City
TN
Molecular Docking
Synthesis and Evaluation of Pyrrolo[2
1-C][1
4]benzodiazepine Derivatives as Novel Non-β-lactam β-Lactamase Inhibitors
Graduate Research Assistant
East Tennessee State University
Benin City
Nigeria
Gracefield Farms
East Tennessee State University
Johnson City
Tennessee
Supervised undergraduate research students\nInstructed in Organic Chemistry lab course\nAssisted professors in teaching Organic Chemistry I and II class and led review sessions for students\nInstructed General Chemistry lab course
Graduate Teaching Assistant
Johnson City
Tennessee Area
Tutoring student athletes Organic Chemistry
General Chemistry
Probability and statistics
Microbiology
Biology for majors and non majors and introduction to Chemistry Survey\n
Tutor
East Tennessee State University
ETSU Department of Intercollegiate Athletics
Johnson City
Tennessee Area
Johnson City Medical Center
Johnson City Medical Center
Johnson City
Sioux Falls
South Dakota Area
Charge Nurse
The Evangelical Lutheran Good Samaritan Society
Graduate Member
Nigerian Institute of Management (Chartered)
Graduate Student Member
American Chemical Society
Member
The Nigerian Society for Experimental Biology (NISEB)
Member
Nigerian Society of Biochemistry and Molecular Biology (NSBMB)
Global Outreach Membership
American Society for Microbiology
Bini
English
First Place Award Winner - Natural Sciences (Group B) - Master Student Poster Presentation
2015 Appalachian Student Research Forum
Natural Sciences Session
D.P. Culp Center
East Tennessee State University
Johnson City
TN 37604
USA
April 8 – 9
2015. Poster Presentation 1st prize winner). Osazee
J. O. and Shilabin
A. G.
Fragment-Based Design and Evaluation of Pyrrolo[2
1-C][1
4]benzodiazepine Derivatives as Novel Non-β-lactam β-Lactamase Inhibitors.
Appalachian Student Research Forum & Office of Research and Sponsored Programs
ETSU
Graduate Student Star (2)
Chair
Chemistry - ETSU
ETSU Public Performance Tuition Scholarship
ETSU Multicultural Center