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USD 250 /hr

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Hire Dr. Marko M.

Serbia

USD 250 /hr

Expert in organic and natural products chemistry, GC–MS/NMR analysis, and scientific research (15+ yrs).

Profile Summary

I am a responsible, dependable, and highly organized researcher with over 15 years of experience in organic chemistry, natural products chemistry, and the study of biologically active compounds. My expertise includes GC–MS, NMR, HPLC, and UV–Vis analyses, as well as the structural elucidation of organic molecules using NMR, IR, and MS techniques. I operate and maintain key laboratory instrumentation, including a Bruker 400 MHz NMR spectrometer (with cryogen handling), GC–MS, HPLC, and UV–Vis systems at both the research group and faculty levels. My research interests focus on organic synthesis, phytochemistry, mass spectrometry, gas chromatography, and structure–activity relationships. I also have practical experience in evaluating biological activities such as acute toxicity, acetylcholinesterase inhibition, and anti-inflammatory, antinociceptive, and anxiolytic effects. I am proficient in software tools including MS Office, AMDIS, NIST MS Search, ChemDraw, and MestReNova, and skilled in SciFinder and Scopus literature searches, as well as multivariate statistical analysis using XLSTAT. I serve as a guest editor for two international journals (Molecules and Processes), have authored over 30 scientific papers, and presented more than 60 conference contributions. My research experience includes participation in major national projects, such as the Ministry-funded project on combinatorial libraries of catalysts and natural products (2011–2019), a Science Fund–supported project on valorizing fermented ginger syrup residues (2025–2026), and leading the 2026 “Molecular Mysteries” project funded by the Center for the Promotion of Science.

Subject Matter Expertise

• ☆ Materials Science & Engineering
• ☆ Natural Product Chemistry
• ☆ Structural Chemistry
• ☆ Green Chemistry
• ☆ Botany
• ☆ Phytochemistry
• ☆ Flavor & Fragrance Chemistry
• ☆ Food Chemistry
• ☆ Applied Chemistry
• ☆ Drug Discovery
• ☆ Medicinal Chemistry
• ☆ Combinatorial Chemistry

Services

• Writing
• Research
• Consulting
• Data & AI

Writing General Proofreading & Editing

Research Scientific and Technical Research, Systematic Literature Review

Consulting Scientific and Technical Consulting

Data & AI Data Processing

Work Experience

Assistant Professor

State University of Novi Pazar

October 2024 - Present

Senior Research Associate

Faculty of Science and Mathematics

June 2022 - Present

Education

Postdoctoral research (Institute of Chemistry)

Université Côte d'Azur Faculté des Sciences

November 2018 - May 2019

PhD (Chemistry)

Faculty of sciences and mathematics

2010 - 2017

Certifications

• Teaching in English

  Tempus

  January 2025 - Present

Publications

CONFERENCE PAPER

Jelena Milovanović, Anđela Kovačić, Zvezdana Jovanović, Filip Šiljković, Marko Mladenović, Bojan Ilić, Ognjen Simić, Vladimir Tomić, Niko Radulović, Slobodan Makarov (2025). Do the combined compounds of millipede`s Megaphyllum bosniense (Verhoeff, 1897) defensive secretion exhibit synergistic effect in the Artemia salina test? . International Congress of Myriapodology.

Jelena Milovanović, Marko Mladenović, Niko Radulović, Vladimir Tomić, Slobodan Makarov, Bojan Ilić (2025). Ontogenetic shifts in the composition of chemical defenses in two julid millipedes . International Congress of Myriapodology.

Šejla Gusinac Avdović, Marko Mladenović, Niko Radulović (2025). Chemical composition of tea tree (Melaleuca alternifolia) (Maiden & Betche) Cheel essential oil . 15th Symposium on the Flora of Southeastern Serbia and Neighbouring Regions.

Šejla Gusinac Avdović, Marko Mladenović, Niko Radulović (2025). New esters from the essential oil of Pelargonium graveolens (Geraniaceae) . 15th Symposium on the Flora of Southeastern Serbia and Neighbouring Regions.

JOURNAL ARTICLE

Milan Ž. Dimitrijević, Marko Z. Mladenović, Milica D. Nešić, Milan S. Dekić, Vidak N. Raičević, Niko S. Radulović (2025). New Oxygenated Methoxy-p-Cymene Derivatives from Leopard’s Bane (Doronicum columnae Ten., Asteraceae) Essential Oil: Synthesis Facilitating the Identification of Isomeric Minor Constituents in Complex Matrices . Molecules.

Milan Ž. Dimitrijević, Marko Z. Mladenović, Milica D. Nešić, Milan S. Dekić, Vidak N. Raičević, Niko S. Radulović (2025). New Oxygenated Methoxy-<i>p</i>-Cymene Derivatives from Leopard’s Bane (<i>Doronicum columnae</i> Ten., Asteraceae) Essential Oil: Synthesis Facilitating the Identification of Isomeric Minor Constituents in Complex Matrices . Molecules.

Niko S. Radulović, Marko Z. Mladenović, Clarissa Silva Lima, Elza Caroline Alves M&#252;ller, Elizabeth Vianna Moraes da Costa, Rozilene Valadares Martins, Fabio Boylan (2024). Amazon Rainforest Hidden Volatiles—Part I: Unveiling New Compounds from Acmella oleracea (L.) R.K. Jansen Essential Oil . Plants.

Niko S. Radulović, Marko Z. Mladenović, Clarissa Silva Lima, Elza Caroline Alves M&#252;ller, Elizabeth Vianna Moraes da Costa, Rozilene Valadares Martins, Fabio Boylan (2024). Amazon Rainforest Hidden Volatiles—Part I: Unveiling New Compounds from <i>Acmella oleracea</i> (L.) R.K. Jansen Essential Oil . Plants.

Marko Z. Mladenović, Ou Huang, Bo Wang, Alexandre Ginestet, Didier Desbiaux, Nicolas Baldovini (2024). Chemical Investigation on the Volatile Part of the CO2 Supercritical Fluid Extract of Infected Aquilaria sinensis (Chinese Agarwood) . Molecules.

Marko Z. Mladenović, Ou Huang, Bo Wang, Alexandre Ginestet, Didier Desbiaux, Nicolas Baldovini (2024). Chemical Investigation on the Volatile Part of the CO₂ Supercritical Fluid Extract of Infected <i>Aquilaria sinensis</i> (Chinese Agarwood) . Molecules.

Vidak Raičević, Marko Mladenović, Milica Aćimović, Niko Radulović (2024). New esters from the essential oil of dry flowers of elder (Sambucus nigra L.) . Journal of the Science of Food and Agriculture.

Sejla Gusinac-Avdovic, F., Marko Mladenovic, Z., Niko Radulovic, S. (2024). Essential-oil composition of plant species of the genus pelargonium . Facta universitatis - series: Physics, Chemistry and Technology.

Vidak Raičević, Marko Mladenović, Milica Aćimović, Niko Radulović(2023). New Esters from the Essential Oil of Dry Flowers of Elder (<i>Sambucus nigra</i> L.) . Journal of the Science of Food and Agriculture. Wiley

Niko S. Radulović, Marko Z. Mladenović, Milan S. Dekić, Fabio Boylan (2023). Synthesis of Small Libraries of Natural Products: Part II: Identification of a New Natural Product from the Essential Oil of Pleurospermum austriacum (L.) Hoffm. (Apiaceae) . Molecules.

Niko S. Radulović, Marko Z. Mladenović, Milan S. Dekić, Fabio Boylan (2023). Synthesis of Small Libraries of Natural Products: Part II: Identification of a New Natural Product from the Essential Oil of <i>Pleurospermum austriacum</i> (L.) Hoffm. (Apiaceae) . Molecules.

Nikola M. Stojanović, Marko Z. Mladenović, Pavle J. Randjelović, Niko S. Radulović(2023). The potential of lemon balm (Melissa officinalis L.) essential oil as an anti-anxiety agent – is the citronellal the activity carrier? . Journal of Ethnopharmacology. p. 116661. Elsevier {BV}

Marko Z. Mladenović, Milenko N. Ristić, Andrija I. Bogdanović, Novica R. Ristić, Fabio Boylan, Niko S. Radulović (2023). Wax Composition of Serbian <i>Dianthus</i> spp. (Caryophyllaceae): Identification of New Metabolites and Chemotaxonomic Implications . Plants.

Niko S. Radulović, Marko Z. Mladenović, Dušan R. Vukićević, Nikola M. Stojanović, Pavle J. Randjelović, Zorica Z. Stojanović-Radić, Fabio Boylan(2022). Pulicaria dysenterica (L.) Bernh.—Rightfully Earned Name? Identification and Biological Activity of New 3-Methoxycuminyl Esters from P. dysenterica Essential Oil . Plants. 11. (23). p. 3340. {MDPI} {AG}

Niko S. Radulović, Marko Z. Mladenović, Dušan R. Vukićević, Nikola M. Stojanović, Pavle J. Randjelović, Zorica Z. Stojanović-Radić, Fabio Boylan (2022). Pulicaria dysenterica (L.) Bernh.—Rightfully Earned Name? Identification and Biological Activity of New 3-Methoxycuminyl Esters from P. dysenterica Essential Oil . Plants.

Niko S. Radulović, Marko Z. Mladenović, Dušan R. Vukićević, Nikola M. Stojanović, Pavle J. Randjelović, Zorica Z. Stojanović-Radić, Fabio Boylan (2022). <i>Pulicaria dysenterica</i> (L.) Bernh.—Rightfully Earned Name? Identification and Biological Activity of New 3-Methoxycuminyl Esters from <i>P. dysenterica</i> Essential Oil . Plants.

Marija S. Genčić, Nikola M. Stojanović, Marko Z. Mladenović, Niko S. Radulović(2022). An HPLC-based assay for improved measurement of glutamate decarboxylase inhibition/activation . Neurochemistry International. 161. p. 105433. Elsevier {BV}

Marija S. Genčić, Jelena M. Aksić, Milena Z. Živković Stošić, Miljana R. Đorđević, Marko Z. Mladenović, Niko S. Radulović(2022). New neryl esters from Helichrysum italicum (Roth) G. Don (Asteraceae) essential oil . Natural Product Research. 36. (8). p. 2002--2008. Informa {UK} Limited

Niko S. Radulović, Milica G. Nikolić, Marko Z. Mladenović, Pavle Ranđelović, Nikola M. Stojanović, Zorica Stojanović‐Radić, Ljiljana Jovanović(2022). Antispasmodic and antimicrobial activities of pyrazole‐containing ferrocenyl alkanols versus their phenyl analogs, and the entry point to potential multitarget treatment for inflammatory bowel diseases . Applied Organometallic Chemistry. 36. (2). Wiley

Nikola M. Stojanović, Marko Z. Mladenović, Aleksandra Maslovarić, Nenad I. Stojiljković, Pavle J. Randjelović, Niko S. Radulović(2022). Lemon balm (Melissa officinalis L.) essential oil and citronellal modulate anxiety-related symptoms – In vitro and in vivo studies . Journal of Ethnopharmacology. 284. p. 114788. Elsevier {BV}

Niko S. Radulović, Magdalena M. Tasić, Marko Z. Mladenović (2021). Oximes of 3,7-dimethylocta-2,6-dienal: Green synthesis, preparative separation of all diastereomers and complete assignment of 1H and 13C NMR spectra . Journal of Molecular Structure.

Marija Gencic, S., Jelena Aksic, M., Marko Mladenovic, M., Milena Zivkovic-Stosic, Z., Niko Radulovic, S. (2021). Phenethyl angelate - a new ester from immortelle essential oil? . Facta universitatis - series: Physics, Chemistry and Technology.

Niko Radulovic, Sonja I. Filipović, Milan S. Nešić, Nikola M. Stojanović, Katarina V. Mitić, Marko Z. Mladenović, Vladimir N. Ranđelović(2020). Immunomodulatory Constituents of Conocephalum conicum (Snake Liverwort) and the Relationship of Isolepidozenes to Germacranes and Humulanes . Journal of Natural Products. 83. (12). p. 3554--3563. American Chemical Society ({ACS})

Niko Radulovic, Marko Z. Mladenović, Milenko N. Ristić, Vidoslav S. Dekić, Biljana R. Dekić, Novica R. Ristić(2020). A new longipinane ketone from Achillea abrotanoides (Vis.) Vis.: chemical transformation of the essential oil enables the identification of a minor constituent . Phytochemical Analysis. 31. (4). p. 501--515. Wiley

Marko Z. Mladenović, Niko S. Radulović(2019). A synthetic library of allylmethoxyphenyl esters: spectral characterization and gas chromatographic behavior . Flavour and Fragrance Journal. 34. (6). p. 471--484. Wiley

Nikola M. Stojanović, Pavle J. Randjelović, Marko Z. Mladenović, Ivan R. Ilić, Vladimir Petrović, Nenad Stojiljković, Sonja Ilić, Niko S. Radulović(2019). Toxic essential oils, part VI: Acute oral toxicity of lemon balm (Melissa officinalis L.) essential oil in BALB/c mice . Food and Chemical Toxicology. 133. p. 110794. Elsevier {BV}

Niko Radulovic, Marko Z. Mladenović, Nikola M. Stojanović, Pavle J. Randjelović, Polina D. Blagojević(2019). Structural Elucidation of Presilphiperfolane-7α,8α-diol, a Bioactive Sesquiterpenoid from Pulicaria vulgaris: A Combined Approach of Solvent-Induced Chemical Shifts, GIAO Calculation of Chemical Shifts, and Full Spin Analysis . Journal of Natural Products. 82. (7). p. 1874--1885. American Chemical Society ({ACS})

Biljana R. Dekić, Milenko N. Ristić, Marko Z. Mladenović, Vidoslav S. Dekić, Novica R. Ristić, Vladimir Ranđelović, Niko S. Radulović(2019). Diethyl‐Ether Flower Washings of Dianthus cruentus Griseb. (Caryophyllaceae): Derivatization Reactions Leading to the Identification of New Wax Constituents . Chemistry and Biodiversity. 16. (7). Wiley

Niko S. Radulović, Vojkan M. Miljković, Marko Z. Mladenović, Goran S. Nikolić(2017). Essential Oils of Morus alba and M. nigra Leaves: Effect of Drying on the Chemical Composition . Natural Product Communications. 12. (1). p. 1934578X1701200. {SAGE} Publications

Marko Z. Mladenović, Niko S. Radulović(2017). The essential oil of Achillea ageratifolia (Sm.) Boiss. subsp. serbica (Nyman) Heimerl (Asteraceae) revisited: the stereochemical nomenclature issues, structural elucidation and synthesis of (new) sabinyl esters . Flavour and Fragrance Journal. 32. (1). p. 5--23. Wiley

Marko Mladenovic, Niko Radulovic(2016). Quantitative structure-gas chromatographic retention index relationship of long-chain esters: The case of Scandix pecten-veneris L. essential-oil constituents . Facta universitatis - series: Physics, Chemistry and Technology. 14. (2). p. 97--104. National Library of Serbia

Niko S. Radulović, Marko Z. Mladenović, Pavle J. Randjelovic, Nikola M. Stojanović, Milan S. Dekić, Polina D. Blagojević(2015). Toxic essential oils. Part IV: The essential oil of Achillea falcata L. as a source of biologically/pharmacologically active trans-sabinyl esters . Food and Chemical Toxicology. 80. p. 114--129. Elsevier {BV}

Niko S. Radulović, Marko Z. Mladenović, Polina D. Blagojević(2014). (Un)Targeted Metabolomics in Asteraceae: Probing the Applicability of Essential-Oil Profiles of Senecio L. (Senecioneae) Taxa in Chemotaxonomy . Chemistry and Biodiversity. 11. (9). p. 1330--1353. Wiley

Niko S. Radulović, Marko Z. Mladenović, Zorica Stojanović-Radić, Goran A. Bogdanović, Dragana Stevanović, Rastko D. Vukićević(2014). Synthesis, characterization, and antimicrobial evaluation of a small library of ferrocene-containing acetoacetates and phenyl analogs: the discovery of a potent anticandidal agent . Molecular Diversity. 18. (3). p. 497--510. Springer Science and Business Media {LLC}

Niko S. Radulović, Marko Z. Mladenović, Zorica Z. Stojanović-Radić(2014). Synthesis of small libraries of natural products: New esters of long-chain alcohols from the essential oil of Scandix pecten-veneris L. (Apiaceae) . Flavour and Fragrance Journal. 29. (4). p. 255--266. Wiley

Niko S. Radulović, Marko Z. Mladenović, Polina D. Blagojević, Zorica Z. Stojanović-Radić, Tatjana Ilic-Tomic, Lidija Senerovic, Jasmina Nikodinovic-Runic(2013). Toxic essential oils. Part III: Identification and biological activity of new allylmethoxyphenyl esters from a Chamomile species (Anthemis segetalis Ten.) . Food and Chemical Toxicology. 62. p. 554--565. Elsevier {BV}

Niko S. Radulović, Marko Z. Mladenović, Polina D. Blagojević(2013). A ‘Low-Level’ Chemotaxonomic Analysis of the Plant Family Apiaceae: The Case of Scandix balansae Reut. ex Boiss. (Tribe Scandiceae) . Chemistry and Biodiversity. 10. (7). p. 1202--1219. Wiley

Niko S. Radulović, Marko Z. Mladenović, Nevenka D. &#208;orđević(2012). Chemotypification of Astrantia major L. (Apiaceae): Essential-Oil and Lignan Profiles of Fruits . Chemistry and Biodiversity. 9. (7). p. 1320--1337. Wiley

CONFERENCE ABSTRACT

Marko Mladenović, Bojan Ilić, Luka Vasić, Jelena Milovanović, Mirko Šević, Slobodan Makarov, Niko Radulović (2023). Chemical composition of the defensive secretion from Pachyiulus varius (Fabricius, 1781) (Diplopoda, Julida) . 26th Congress of the Society of Chemists and Technologists of Macedonia (SCTM).

Milan Dimitrijević, Milica Nešić, Marko Mladenović, Niko Radulović (2023). New esters from the essential oil of Doronicum columnae Ten . 26th Congress of the Society of Chemists and Technologists of Macedonia (SCTM).

Marko Mladenović, J. Liu, E.C. Muller, C. Lima, F. Boylan, N. Radulović (2023). The essential oil of Acmella oleracea (L.) R. K. Jansen: structural elucidation and acute toxicity of new esters . 26th Congress of the Society of Chemists and Technologists of Macedonia (SCTM).

Jelena Milovanović, Bojan Ilić, Marko Mladenović, Niko Radulović, Slobodan Makarov, Aleksandar Divac Rankov (2023). Embriotoksični potencijal ekstrakata i odabranih estara iz odbrambenih sekreta dve vrste iz roda Megaphyllum Verhoeff, 1894 (Diplopoda: Julida) . XIV Simpozijum entomologa Srbije sa međunarodnim učešćem.

Niko Radulović, Marko Mladenović, Milan Dekić, Fabio Boylan (2023). Identification of a new natural product from the essential oil of Pleurospermum austriacum (L.) Hoffm. (Apiaceae) . 71st International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research (GA).

Nikola Stojanović, Marko Mladenović, Milica Nešić, Goran Nikolić, Pavle Ranđelović, Niko Radulović (2022). Involvement of serotonergic neurotransmission in the anxiolytic potential of Melissa officinalis essential oil and citronellal . 52nd International Symposium on Essential Oils.

Fabio Boylan , Niko Radulović, Nikola Stojanović, Marko Mladenović, J. Liu, E. C. Muller, C. Lima (2022). Amazon rainforest hidden volatiles: Unveiling new minor compounds from paracress essential oil . 70th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research (GA).