John Mmari Onyari

John Mmari Onyari

University of Nairobi

H-index: 19

Africa-Kenya

About John Mmari Onyari

John Mmari Onyari, With an exceptional h-index of 19 and a recent h-index of 15 (since 2020), a distinguished researcher at University of Nairobi, specializes in the field of biodegradable polymers, Green environmental technologies, Material science, Adsorbents for water and effluent treatments, Marine.

His recent articles reflect a diverse array of research interests and contributions to the field:

Antibacterial Effects of Zinc and Copper Oxide Nanoparticles and their Miscibility simulations with Polylactic acid

Multi-omics analyses reveal rumen microbes and secondary metabolites that are unique to livestock species

Physicochemical and nutritional properties of Syzygium cumini (L.) skeels fruits grown in varied microclimates in Kenya

Determination of heavy metals concentrations in coal and coal gangue obtained from a mine, in Zambia

Effects of temperature and catalytic reduction of sulfur content on kinematic viscosity and specific gravity of tire pyrolysis oil

Enzymatic dehairing of sheep skin: Recovery and characterization of commercially important wool hydrolysate and fats

African Journal of Pure and Applied Chemistry

Catalytic pyrolysis and composition evaluation of tire pyrolysis oil

John Mmari Onyari Information

University

Position

Associate professor

Citations(all)

1682

Citations(since 2020)

948

Cited By

1183

hIndex(all)

19

hIndex(since 2020)

15

i10Index(all)

35

i10Index(since 2020)

18

Email

University Profile Page

University of Nairobi

Google Scholar

View Google Scholar Profile

John Mmari Onyari Skills & Research Interests

biodegradable polymers

Green environmental technologies

Material science

Adsorbents for water and effluent treatments

Marine

Top articles of John Mmari Onyari

Title

Journal

Author(s)

Publication Date

Antibacterial Effects of Zinc and Copper Oxide Nanoparticles and their Miscibility simulations with Polylactic acid

Dibli B Otieno

Geoffrey O Bosire

John M Onyari

Julius M Mwabora

2024/3/27

Multi-omics analyses reveal rumen microbes and secondary metabolites that are unique to livestock species

Msystems

Victor O Omondi

Geoffrey O Bosire

John M Onyari

Caleb Kibet

Samuel Mwasya

...

2024/2/20

Physicochemical and nutritional properties of Syzygium cumini (L.) skeels fruits grown in varied microclimates in Kenya

African Journal of Pure and Applied Chemistry

Rose Chiteva

John Mmari Onyari

Lydia Wanjiru Njenga

Vincent Odongo Madadi

2023/2/28

Determination of heavy metals concentrations in coal and coal gangue obtained from a mine, in Zambia

International Journal of Environmental Science and Technology

B Chilikwazi

JM Onyari

JM Wanjohi

2023/2

Effects of temperature and catalytic reduction of sulfur content on kinematic viscosity and specific gravity of tire pyrolysis oil

Chemical Engineering Communications

Job Bosire Omwoyo

Richard Kyalo Kimilu

John Mmari Onyari

2023/1/2

Enzymatic dehairing of sheep skin: Recovery and characterization of commercially important wool hydrolysate and fats

European Journal of Sustainable Development Research

SK Chebon

WC Wanyonyi

JM Onyari

SM Maru

FJ Mulaa

2023

African Journal of Pure and Applied Chemistry

African Journal of Pure and Applied Chemistry

Legesse Adane

Abera Tadesse

Tegene Tesfaye

2014/5/7

Catalytic pyrolysis and composition evaluation of tire pyrolysis oil

Chemical Engineering Communications

Job Bosire Omwoyo

Richard Kyalo Kimilu

John Mmari Onyari

2023/7/3

Assessing Social and Environmental Impacts of Artisanal and Small-Scale Gold Mining Practices in Lolgorian, Kenya

European Journal of Sustainable Development Research

Leonard L Tampushi

John M Onyari

Nzioka J Muthama

2022/6/7

Conglomeratin: a new antibacterial flavonol derivative from Macaranga conglomerata Brenan (Euphorbiaceae)

Natural Product Research

Ibrahim Hashim

John Mmari Onyari

Leonidah Kerubo Omosa

Shital Mahindra Maru

Vaderament-A Nchiozem-Ngnitedem

...

2022/12/1

Chemical Constituents from the Stem Bark of Ficus thonningii and their Chemotaxonomic Significance

European Journal of Medicinal Plants

Justus Mukavi

Shital Mahindra Maru

John Mmari Onyari

Leonidah Kerubo Omosa

Ibrahim Hashim

2022/10/7

Effect of Soil Properties on the Physical and Nutritional Content of Syzygium Fruits

Rose Chiteva

John M Onyari

Lydia W Njenga

Vincent O Madadi

2022

Environmental distribution and risk of exposure of heavy metal pollutants from Lolgorian Artisanal Gold Mining in Kenya

Bulletin of Environmental Contamination and Toxicology

Leonard L Tampushi

John M Onyari

Nzioka J Muthama

2022/8

Microplastics contamination of fish from the creeks along the Kenya coast, Western Indian Ocean (WIO).

Joyce O Kerubo

Agnes

WN Muthumbi

Deborah Robertson-Andersson

John M Onyari

...

2022

A comparative investigation of volatile organic compounds of cattle rumen metabolites using HS-SPME and PoraPak-Q odor trapping methods

Analytical Chemistry Letters

Victor O Omondi

Geoffrey O Bosire

John M Onyari

Merid N Getahun

2022/7/4

African Journal of Biological Sciences

Joyce O Kerubo

WN Agnes

Deborah Robertson-Andersson

John M Onyari

Edward N Kimani

2022

Comparative analysis of 3D-printed polylactic acid and acrylonitrile butadiene styrene: experimental and Materials-Studio-based theoretical studies

Journal of Polymer Research

Dibli B Otieno

Geoffrey O Bosire

John M Onyari

Julius M Mwabora

2022/7

Microplastics pollution in the sediments of creeks and estuaries of Kenya, western Indian Ocean

African Journal of Marine Science

JO Kerubo

AWN Muthumbi

JM Onyari

D Robertson-Andersson

E Kimani

2021/7/3

Physicochemical Properties, Fatty Acids Composition and Antioxidant Potential of the Seed Kernel Oil of Oysternut (Telfairia pedata) Found in Kenya

European Journal of Medicinal Plants

Leonidah K Omosa

John M Onyari

Benard M Isaiah

2021/3/12

A review of mining regulations and environmental sustainability of artisanal gold mining sector

Leonard L Tampushi

John M Onyari

Nzioka J Muthama

2021

See List of Professors in John Mmari Onyari University(University of Nairobi)