Jonathan Johnson

ORCID: 0000-0001-6038-8690
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About
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Research Areas
  • Nanoparticles: synthesis and applications
  • Adipose Tissue and Metabolism
  • Moringa oleifera research and applications
  • Phytochemicals and Antioxidant Activities
  • Natural Antidiabetic Agents Studies
  • Birth, Development, and Health
  • Gestational Diabetes Research and Management
  • Adsorption and biosorption for pollutant removal
  • Natural Products and Applications
  • Diverse Scientific Research Studies
  • Papaya Research and Applications
  • Essential Oils and Antimicrobial Activity
  • Advanced Polymer Synthesis and Characterization
  • Diet, Metabolism, and Disease
  • Bee Products Chemical Analysis
  • Enhanced Oil Recovery Techniques
  • Hydrogen embrittlement and corrosion behaviors in metals
  • Psidium guajava Extracts and Applications
  • Magnesium Oxide Properties and Applications
  • Extraction and Separation Processes
  • Graphene and Nanomaterials Applications
  • Electrospun Nanofibers in Biomedical Applications
  • Groundwater and Isotope Geochemistry
  • Nanocomposite Films for Food Packaging
  • Biomedical Research and Pathophysiology

Afe Babalola University
2018-2022

East Carolina University
2022

Arunai Engineering College
2021

Ladoke Akintola University of Technology
2019

The present study described the synthesis of biocompatible Zinc oxide nanoparticles from zinc acetate through eco-friendly green process using leaf extract Cassia auriculata and their antibacterial activity. synthesized ZnO were characterized by Fourier-transform infrared (FTIR) spectroscopy, Ultra violet visible Photoluminescence X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM). FTIR studies confirm presence bio molecules metal oxides. calculated optical band gap values material...

10.1016/j.sbsr.2021.100399 article EN cc-by-nc-nd Sensing and Bio-Sensing Research 2021-01-14

The use of plant and products in the synthesis silver nanoparticles (AgNPs) gold (AuNPs) is made possible because natural inherent phytochemicals responsible for reduction respective metallic salts to nanoparticle forms, ensuring therapeutic applicability. In this study, AgNPs AuNPs was performed using two different aqueous extraction methods Crassocephalum rubens: maceration laboratory method (cold extract rubens (AECR)), decoction traditional healer's (hot crude (CECR)). synthesized were...

10.1016/j.heliyon.2020.e05501 article EN cc-by-nc-nd Heliyon 2020-11-01

This study investigated the feasibility of using acid activated carbon prepared from brewery spent barley husks for adsorption cadmium aqueous solution. The effects operation parameters such as pH, contact time, adsorbent dosage, concentration and temperature were verified. amount adsorbed increased with increase in solution initial dosed. A time 5 minutes was required attainment equilibrium. equilibrium data obtained analysed both Langmuir Freundlich isotherm models better described by...

10.22146/ijc.22422 article EN cc-by-nc-nd Indonesian Journal of Chemistry 2018-02-28

Preclinical rodent and nonhuman primate models investigating maternal obesity have highlighted the importance of intrauterine environment in development insulin resistance offspring; however, it remains unclear if these findings can be translated to humans. To investigate possible effects humans, we isolated mesenchymal stem cells (MSCs) from umbilical cord tissue infants born mothers normal weight or with obesity. Insulin-stimulated glycogen storage was determined MSCs undergoing myogenesis...

10.2337/db21-0812 article EN Diabetes 2022-05-27

The alarming rate of diabetes mellitus (DM) globally is bothersome and has drawn the search light researchers on naturally endowed phytonutrients being an alternative in managing menace. Therefore, current study was designed to investigate some antioxidant parameters embedded extract Dialium indium (DI) fruit pulp also, elucidate its antidiabetic potentials through inhibition two key carbohydrate-metabolizing enzymes such as α-amylase intestinal α-glucosidase. Hydro-ethanolic DI used for...

10.5219/911 article EN cc-by Potravinarstvo Slovak Journal of Food Sciences 2018-04-13

The inhibition eff ect of Hura Crepitans seed extract (HCS) on the corrosion Duplex Stainless Steel 2101 (DSS2101) in 0.5M H 2 SO 4 solution has been studied for fi rst time by weight loss test method and potentiodynamic polarization method.The extracts elemental compositions were characterized using at omic absorption spectroscopy (AAS).The phenolic aromatic functional groups revealed with Gas Chromatography Mass Spectroscopy (GC-MS).From result, phytochemicals such as saponin, tannins,...

10.12913/22998624/151693 article EN Advances in Science and Technology – Research Journal 2022-09-11

This analysis studied the effects modification on properties of starch-based polymer grafted with acrylonitrile (copolymers). Starch was extracted from bitter yam. The starch modified by heating solution above 70 °C and then esterified phthalic anhydride to produce a pregelatinized phthalated derivative. Acrylonitrile onto natural at 120 using calcium oxide snail shell as initiator. grafting reaction poly(acrylonitrile) phthalation were both confirmed Fourier transform infrared (FTIR)....

10.1590/0104-1428.20220020 article EN cc-by Polímeros 2022-01-01

THIS study was conducted to activate and characterize carbons prepared from coconut shells for subsequent adsorption of Cr (VI) synthetic wastewater.The process carried out through batch studies.The results showed that the pH, contact time temperature dependent.The optimum pH 2 both cashew bark extract activated (CNAC1) H3PO4 activated(CNAC2) carbons.Characterization using Fourier Transform-Infrared Spectroscopy (FTIR) revealed OH C=O were some prominent functional groups involved in...

10.21608/ejchem.2021.47465.2980 article EN Egyptian Journal of Chemistry 2021-11-29

Bryophyllum pinnatum (Lam.), Viscum album (L.) and Artocarpus altilis (Parkinson) are medicinal plants widely used based on their ethnomedicinal properties in the regulation of blood pressure. This study was designed to evaluate antioxidant activities compositional constituents these plants. The potentials were analyzed using DPPH FRAP assays, while Folin-Ciocalteu method employed determination total phenolic contents. Compositional analyses leave extracts determined Gas Chromatograghy-Mass...

10.5219/912 article EN cc-by Potravinarstvo Slovak Journal of Food Sciences 2018-04-13

Nanomaterials have gained much relevant in the world of science due to their applications catalysis, wastewater treatment and desulfurization fossil fuels, biotechnology, pharmaceuticals medicine. The green approach nanoparticle synthesis employs use non-toxic reagents is now preferred other methods which include thermal decomposition, electrochemical, photochemical, microwave assisted process chemical methods. Silver was biosynthesized using flower extract Musa acuminata as reducing capping...

10.7176/cmr/11-7-02 article EN cc-by chemistry and materials research 2019-09-01

Ponte Academic JournalMar 2017, Volume 73, Issue 3 KINETICS AND EQUILIBRIUM STUDIES ON THE ABSTRACTION NICKEL FROM AQUEOUS SOLUTION USING CHEMICALLY TREATED COW HOOFAuthor(s): Osasona Ilesanmi ,Adebayo Albert Ojo, Okronkwo Elvis Afemafuna, Johnson Jonathan, Osunlana OluronkeJ. - Mar 2017 73 doi: 10.21506/j.ponte.2017.3.2 Abstract:An investigation was conducted on the kinetics and equilibrium isotherm for adsorption of nickel from aqueous solution using citric acid treated (CTCH),...

10.21506/j.ponte.2017.3.2 article EN PONTE International Scientific Researchs Journal 2017-01-01

<p> </p> <p>Preclinical rodent and non-human primate models investigating maternal obesity have highlighted the importance of intrauterine environment for development insulin resistance in offspring; however, it remains unclear if these findings can be translated to humans. To investigate possible effects humans, we isolated mesenchymal stem cells (MSCs) from umbilical cord tissue infants born mothers normal weight (NW) or with (Ob). Insulin stimulated glycogen storage was...

10.2337/figshare.19808653.v1 preprint EN cc-by-nc-sa 2022-05-27

<p> </p> <p>Preclinical rodent and non-human primate models investigating maternal obesity have highlighted the importance of intrauterine environment for development insulin resistance in offspring; however, it remains unclear if these findings can be translated to humans. To investigate possible effects humans, we isolated mesenchymal stem cells (MSCs) from umbilical cord tissue infants born mothers normal weight (NW) or with (Ob). Insulin stimulated glycogen storage was...

10.2337/figshare.19808653 preprint EN cc-by-nc-sa 2022-05-27

Organic pollutants are that organic in nature, basically containing carbon covalently bonded with other elements. They known to be toxic or carcinogenic nature. Their presence water large quantity causes considerable and widespread concern. Ten samples -sachets bottles, were bought from different potable producing plants Ado-Ekiti environs. By using a separatory funnel liquid-liquid extraction system of 50mL:50mL n-Hexane: Dichloromethane, contaminants extracted the samples. These analyzed...

10.53982/aijnas.2022.0202.02-j article EN cc-by-nc-nd ABUAD International Journal of Natural and Applied Sciences 2022-09-05

Abstract There is recently a fast growing interest in green nanotechnology as better approach for managing diabetes mellitus (DM) and its associated complications. This study therefore aimed at exploring the protective potentials of biogenic phytomediated magnesium-based nanoparticles using Monodora myristica seed (Mg(OH) 2 NP -Mm ) against streptozotocin-induced diabetic hepatopathy, nephropathy neuropathy Wistar rats. Mg(OH) was biosynthesized characterized standard techniques. Forty-eight...

10.21203/rs.3.rs-1145241/v1 preprint EN cc-by Research Square (Research Square) 2021-12-22
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