Joseph Osazee

 Joseph Osazee

Joseph O. Osazee

  • Courses1
  • Reviews1

Biography

East Tennessee State University - Chemistry


Resume

  • 2017

    Accelerated Bachelor's of Science

    Registered Nursing/Registered Nurse

    Director (ETSU International Choir

    2017 - 2018)

    East Tennessee State University

    Magna Cum Laude

  • 2014

    Master’s Degree

    Chemistry

    Graduate and Professional Student Association (GPSA) ETSU

    American Chemical Society

    East Tennessee State University

  • 2012

    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)

  • 2006

    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

  • 2004.

    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