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Biography

I continue to acquire experience in the development of amperometric sensors and biosensors based on Clays, composite materials,nanomaterials, polymers, metal organic frameworks, and their applications to the electroanalysis of organic compounds using electrochemical techniques. I have Good knowledge on the different electrochemical techniques (Cyclic voltammetry, pulse voltammetry, electrochemical impedance spectroscopy, chronoamerometry) and some physico-chemical characterization techniques of materials like X-Ray Diffraction (XRD), Thermogravimetric analysis (TG-DTG), Infrared spectroscopy, Elemental analysis, BET’s technique, Nuclear Magnetic Resonance (13C and 1H NMR), Scanning Electron Microscopy (SEM)/Energy dispersive X-ray (EDX), X-Ray Photoelectron Spectroscopy (XPS).
I'm currently working in the development of wearable sensors, on the coupling of electrochemical (EC), liquid chromatography (LC), and mass spectrometry (MS) methods EC-MS/EC-LC-MS for phenolic compounds application and interactions between biological molecules and metal-based anticancer complexes.

Activities

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Employment (1)

MINESEC: ABONGMBANG, EAST, CM

2018-02-05 to present | TEACHER (CHEMISTRY)
Employment
Source: Self-asserted source
DEFFO Gullit

Education and qualifications (2)

MINESUP: DSCHANG, WEST, CM

2011-10-15 to present | MASTER OF SCIENCE (CHEMISTRY)
Education
Source: Self-asserted source
DEFFO Gullit

University of Dschang: Dschang, West, Cameroon, CM

2017-10-17 to 2023-04-11 | Doctorat/PhD (Chemistry)
Education
Source: Self-asserted source
DEFFO Gullit

Professional activities (5)

Royal Society of Chemistry: London, GB

2024-04-01 to present | Member (Chemistry)
Membership
Source: Self-asserted source
DEFFO Gullit

GROUPE CAMEROUNAIS DE CHIMIE ANALYTIQUE: DSCHANG, WEST, CM

2019-09-04 to present | Member (Chemistry)
Membership
Source: Self-asserted source
DEFFO Gullit

INTERNATIONAL UNION OF CRYSTALLOGRAPHY & CAMEROONIAN CRYSTALLOGRAPHY ASSOCIATION: DSCHANG, WEST, CM

2016-10-06 to present | Member (Chemistry)
Membership
Source: Self-asserted source
DEFFO Gullit

International Society of Electrochemistry: Lausanne, CH

2024-01-24 to 2025-01-23 | Doctorat/PhD (Chemistry)
Membership
Source: Self-asserted source
DEFFO Gullit

DBT-TWAS: TEZPUR, ASSAM, IN

2020-06-08 | AWARDED DBT-TWAS POST GRADUATE SANDWICH FELLOWSHIP (CHEMICAL SCIENCES)
Distinction
Source: Self-asserted source
DEFFO Gullit

Funding (1)

AGNES Grant for Junior Researchers

2023-12 to 2024-02 | Salary award
AGNES Grant for Junior Researchers - supported by BMZ/AvH (Osogbo, Osun State, NG)
Source: Self-asserted source
DEFFO Gullit

Works (14)

Bionanocomposite materials for electroanalytical applications: current status and future challenges

Nanoscale Advances
2024 | Journal article
DOI: 10.1039/D3NA01111A
Contributors: Gullit Deffo; Ranil Clément Tonleu Temgoua; Evangéline Njanja; Panchanan Puzari
Source: check_circle
Crossref

Evaluation of two core–shell (Ag2S@- and Bi2S3@-) sensors based on a metal–organic framework (NH2-MIL-125-Ti)/polyaniline for the electroanalysis of uric acid in urine samples

Materials Advances
2024 | Journal article
DOI: 10.1039/D3MA01182H
Contributors: Gullit Deffo; Cyrille Ghislain Fotsop; Marcel Cédric Deussi Ngaha; Sengor Gabou Fogang; Lionnel Averie Vomo; Bibiane Wandji Nkuigoua; Calmette Akenmo Shella; Alex Vincent Somba; Thierry Flavien Nde Tene; Ida Kouam Tchummegne et al.
Source: check_circle
Crossref

Sensitive determination of 4,6-dinitro-o-cresol based on a glassy carbon electrode modified with Zr-UiO-66 metal–organic framework entrapped FMWCNTs

Analytical Methods
2024 | Journal article
DOI: 10.1039/D3AY01723K
Contributors: Ranjit Hazarika; Gullit Deffo; Honore Nogholesso Wamba; Nayab Hussain; Shyamali Kalita; Mwina Basumatary; Evangéline Njanja; Soumen Dasgupta; Panchanan Puzari
Source: check_circle
Crossref

Simultaneous electrochemical determination of carbendazim and thiabendazole pesticides based on UiO-66(Zr)-NH-OC-MWCNT 3D coated glassy carbon electrode

Journal of Solid State Electrochemistry
2024-08-13 | Journal article
DOI: 10.1007/s10008-024-06039-6
Part of ISSN: 1432-8488
Part of ISSN: 1433-0768
Contributors: Ranjit Hazarika; Gullit Deffo; Nayab Hussain; Honore Nogholesso Wamba; Uddipana Saikia; Mwina Basumatary; Mridupavan Dutta; Soumen Dasgupta; Evangéline Njanja; Ranjit Hazarika
Source: Self-asserted source
DEFFO Gullit

Synthesis of Zinc Oxide Nanoparticles Based on Coffee Husks Embedded on Mesoporous Silica for the Sensing of Acetaminophen

ChemElectroChem
2024-06-03 | Journal article
DOI: 10.1002/celc.202400088
Contributors: Lionnel Averie Vomo; Gullit Deffo; Cyrille Ghislain Fotsop; Lydiane Ghislaine Djemmoe; Victor Kougoum Tchieda; François Meva Eya'ane; Evangeline Njanja
Source: check_circle
Crossref

Preparation and Characterization of Alkali Activated Carbon Based Theobroma Cocoa Pods: Application for Electrochemical Determination of Xanthine in Fresh Fish Sample

ChemistrySelect
2024-03-05 | Journal article
DOI: 10.1002/slct.202303250
Contributors: Alex Vincent Somba; Théophile Kamgaing; Cyrille Ghislain Fotsop; Gullit Deffo; Bibiane Wandji Nkuigoua; Rufis Fregue Tiegam Tagne; Kevin Yemele Tajeu; Ranil Clément Tonleu Temgoua; Evangeline Njanja; Ignas Kenfack Tonlé
Source: check_circle
Crossref

Differential pulse and square-wave voltammetry as sensitive methods for electroanalysis applications

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering
2023 | Book chapter
DOI: 10.1016/b978-0-323-85669-0.00040-4
Part of ISBN: 9780124095472
Contributors: Gullit Deffo; Thierry Flavien Nde Tene; Liliane Medonbou Dongmo; Sherman Lesly Zambou Jiokeng; Ranil Clément Tonleu Temgoua
Source: Self-asserted source
DEFFO Gullit

Evaluation of Silver Nanoparticles Based on Fresh Cocoa Pods (Theobroma Cacao) Extracts as New Potential Electrode Material

Journal of Chemistry
2023-11-21 | Journal article
DOI: 10.1155/2023/6447994
Part of ISSN: 2090-9071
Part of ISSN: 2090-9063
Contributors: Alex Vincent Somba; Evangéline Njanja; Gullit Deffo; Cyrille Ghislain Fotsop; Kevin Yemele Tajeu; Armel Florian Tchangou Njiemou ; Francois Eya'ane Meva; kamgaing theophile
Source: Self-asserted source
DEFFO Gullit

Sample Preparation Techniques for Electrochemical Analysis of Pesticides and Heavy Metals in Environmental and Food Samples

Environmental Sciences
2023-09-06 | Book chapter
DOI: 10.5772/intechopen.112589
Part of ISSN: 2754-6713
Contributors: Ranil Clément Tonleu Temgoua; Sherman Lesly Zambou Jiokeng; Kevin Yemele Tajeu; Gullit Deffo; Lionnel Averie Vomo; Fabiola Tonleu Dontsi; Evangeline Njanja; Ignas Kenfack Tonlé
Source: Self-asserted source
DEFFO Gullit

Nafion/Multiwalled Carbon Nanotubes/Mesoporous Silica Composite Modified Glassy Carbon Electrode for the Simultaneous Electrochemical Determination of Indigo Carmine and Carbendazim by Differential Pulse Voltammetry

Analytical Letters
2023-08-13 | Journal article
DOI: 10.1080/00032719.2023.2245083
Part of ISSN: 0003-2719
Part of ISSN: 1532-236X
Contributors: Sengor Gabou Fogang; Gullit Deffo; Leopoldine Sonfack Guenang; Ranil Clement Tonleu Temgoua; Evangeline Njanja; Ignas Kenfack Tonle; Asim Bhaumik; Emmanuel Ngameni
Source: Self-asserted source
DEFFO Gullit

An ultra-sensitive uric acid second generation biosensor based on chemical immobilization of uricase on functionalized multiwall carbon nanotube grafted palm oil fiber in the presence of a ferrocene mediator

Analytical Methods
2023-04-20 | Journal article
DOI: 10.1039/d3ay00053b
Part of ISSN: 1759-9660
Part of ISSN: 1759-9679
Contributors: Gullit Deffo; Ranjit Hazarika; Marcel Cédric Deussi Ngaha; Mwina Basumatary; Shyamali Kalita; Nayab Hussain; Evangéline Njanja; PANCHANAN PUZARI; Emmanuel Ngameni
Source: Self-asserted source
DEFFO Gullit

Eggshell nano-CaCO3 decorated PANi/rGO composite for sensitive determination of ascorbic acid, dopamine, and uric acid in human blood serum and urine

Materials Today Communications
2022-12 | Journal article
DOI: 10.1016/j.mtcomm.2022.104357
Part of ISSN: 2352-4928
Contributors: Gullit Deffo; Mwina Basumatary; Nayab Hussain; Ranjit Hazarika; Shyamali Kalita; Evangéline Njanja; Panchanan Puzari
Source: Self-asserted source
DEFFO Gullit

Signal amplification by electropolymerization of alizarin red S for improved diuron detection at organosmectite modified glassy carbon electrode

Journal of the Chinese Chemical Society
2022-02 | Journal article
DOI: 10.1002/jccs.202100387
Part of ISSN: 0009-4536
Part of ISSN: 2192-6549
Contributors: Gullit Deffo; Ranil Clément Tonleu Temgoua; Kevin Yemele Tajeu; Evangeline Njanja; Giscard Doungmo; Ignas Kenfack Tonle; Emmanuel Ngameni
Source: Self-asserted source
DEFFO Gullit

A sensitive voltammetric analysis and detection of Alizarin Red S onto a glassy carbon electrode modified by an organosmectite

Sensors International
2021 | Journal article
DOI: 10.1016/j.sintl.2021.100126
Contributors: Gullit Deffo; Ranil Clément Tonleu Temgoua; Serge Foukmeniok Mbokou; Evangéline Njanja; Ignas Kenfack Tonlé; Emmanuel Ngameni
Source: check_circle
Crossref

Peer review (5 reviews for 3 publications/grants)

Review activity for Chemické zvesti. (1)
Review activity for International Journal of Electrochemical Science. (2)
Review activity for Sensors and actuators. (2)
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