Oka Arjasa | Nanotechnology | Best Researcher Award

Published on by Analytical Chemistry

Assoc. Prof. Dr. Oka Arjasa | Nanotechnology | Best Researcher Award

BRIN | Indonesia

Assoc. Prof. Oka Pradipta Arjasa, Ph.D. is a leading researcher and Principal Investigator in Colloid and Nanoscience at the Fuel Cells System and Hydrogen Production Research Group, Energy Conversion and Conservation Research Centre (PR KKE), BRIN, Indonesia. With a strong focus on hydrogen technology and sustainable energy solutions, he has been instrumental in developing cutting-edge research and national policy frameworks for energy transition. Dr. Arjasa holds a Ph.D. in Chemistry from the University of Manchester, UK, where he specialized in the magnetic properties of graphene using Electron Spin Resonance. He also earned a Master of Engineering from the University of Indonesia, a Master of Science from National Taiwan University of Science and Technology, and a Bachelor’s degree in Chemical Engineering from Universitas Gadjah Mada. His professional journey includes over a decade of research at the Center for Material Technology (BPPT) and ongoing contributions to national and ASEAN-level scientific initiatives. He currently serves as a Technical Committee member for Indonesia’s Hydrogen Technology Standard (TC 27-11) and as the ASEAN COSTI focal point for Sustainable Energy Research. In Scopus, he has published 15 documents with 28 citations and an h-index of 3. Google Scholar reports 530 citations with an h-index of 10, reflecting his growing impact in sustainable energy research. In addition to his research, Dr. Arjasa is Vice President of Power Resilience at HAGI, a reviewer for international journals, and a dedicated member of multiple scientific consortia. His work in battery recycling, rare earth materials, and hydrogen fuel development reflects his commitment to advancing clean energy technologies in Indonesia and beyond.

Profiles : Scopus | Orcid | Google scholar 

Featured Publications

Bhagaskara, A., Wijaya, K., Trisunaryanti, W., Saputra, D. A., Agustanhakri, A., Taqwatomo, G., Arjasa, O. P., Budiman, A. H., & Anggaravidya, M. (2025, October). Upcycling secondary nickel from spent nickel-manganese-cobalt (NMC) batteries as a nanocatalyst on sulfated natural zeolite for converting LDPE plastic waste into jet-fuel hydrocarbons. Next Materials.

Hastuti, L. P., Budiman, A. H., Arjasa, O. P., Ristiana, D. D., Gumelar, M. D., Saputra, D. A., Rahayu, S., Husin, S., & Prasetyo, H. (2025, June 18). Synergistic NiS/CuO heterostructures as two-in-one catalysts for dye removal and bacterial inactivation. International Journal of Environmental Analytical Chemistry.

Hastuti, L. P., Budiman, A. H., Darsono, N., Timuda, G. E., Bakri, A., Darmawan, A., & Arjasa, O. P. (2025, May 4). Novel g-C₃N₄/rGO/NiS incorporated into GO free-standing membrane as a photocatalytic membrane for excellent dye photodegradation. Fullerenes, Nanotubes and Carbon Nanostructures.

Simamora, R. M. A., Setyadi, J. P., Pravitasari, R. D., Arjasa, O. P., Damisih, D., Hapsari, A. U., Raharjo, J., Indayaningsih, N., Subhan, A., Budiman, A. H., et al. (2025, January 13). Pt nanowire arrays on graphene-integrated cathode gas diffusion layer for proton exchange membrane fuel cells. ACS Applied Energy Materials.

Husin, S., Saudi, A. U., Taqwatomo, G., Gumelar, M. D., Raharjo, J., Rahayu, S., Prasetyo, H., Yuliani, H., Saputra, D. A., Arjasa, O. P., et al. (2024). Recovery of valuable metals from NMC-811 Li-ion battery waste with froth flotation and hydrometallurgical extraction. Engineering and Applied Science Research.

 

David Semeril | Supramolecular Chemistry | Best Researcher Award

Published on by Analytical Chemistry

Dr. David Semeril | Supramolecular Chemistry | Best Researcher Award

CNRS | France

Profiles

Orcid

Early Academic Pursuits

Dr. David Sémeril began his academic journey with a doctoral degree in chemistry from the University of Rennes, where he specialized in ruthenium-based catalysis involving functionalized diene and enyne substrates. His PhD research laid a strong foundation in organometallic chemistry and catalysis, demonstrating his early commitment to innovative reaction mechanisms and catalyst development. This academic training was further enriched by post-doctoral experiences in Italy, where he engaged in polymer chemistry and organometallic complex synthesis.

Professional Endeavors

Dr. Sémeril serves as a Chargé de Recherche (Research Scientist) at CNRS and holds a leadership position in the Organometallic Synthesis and Catalysis team within a recognized CNRS unit. His responsibilities span advanced research in homogeneous catalysis, academic mentorship, and project coordination at national and international levels. He has led multiple major research grants, including nationally funded ANR projects and internationally supported collaborations through TUBITAK and IFCPAR, reflecting a consistent trajectory of scientific leadership and innovation.

Contributions and Research Focus

His research spans a wide spectrum of advanced chemistry, with a strong focus on homogeneous catalysis using transition metal complexes. Core areas include carbon–carbon cross-coupling reactions, hydrogenation, hydroformylation, and olefin oligomerization/polymerization. Dr. Sémeril’s work often features the design and utilization of metallo-cavitands, modified calix[4]arene and resorcin[4]arene scaffolds, and constrained ligands such as phosphines and N-heterocyclic carbenes. These systems are investigated for their mechanistic behavior and functional utility in catalysis under nanoconfined conditions. His contributions also explore the interplay between molecular modeling, capsule-based chemistry, and reaction dynamics, pushing the boundaries of supramolecular catalysis.

Impact and Influence

With over a hundred peer-reviewed publications and a notable h-index, Dr. Sémeril has established a strong scientific footprint. His research is widely cited, underscoring the relevance and innovation of his work in catalysis and metallo-supramolecular chemistry. He has delivered numerous invited talks at international conferences and has collaborated with leading chemists and research groups across Europe, Asia, and North Africa. His role as a visiting professor in institutions abroad further emphasizes his global recognition and influence in the chemical sciences.

Academic Citations

Dr. Sémeril’s work has attracted substantial academic interest, accumulating over 3000 citations with a citation profile that reflects sustained impact across interdisciplinary research in organometallic chemistry, catalysis, and supramolecular science. His research outputs contribute both to fundamental understanding and to the development of practical applications in modern synthetic chemistry.

Technical Skills

He possesses a high level of technical expertise in the synthesis and characterization of metal complexes, ligand design, polymer chemistry, and mechanistic catalysis studies. Proficiency in infrared spectroscopy, molecular modeling, and the manipulation of air- and moisture-sensitive compounds forms a cornerstone of his laboratory work. His interdisciplinary approach integrates experimental chemistry with computational insight, which enhances the mechanistic depth of his research findings.

Teaching Experience

Dr. Sémeril is actively involved in the education and training of undergraduate and postgraduate students. He has led practical courses in both inorganic and organic chemistry, as well as specialized sessions in spectroscopy and lifelong learning modules. His mentoring portfolio includes the supervision of multiple PhD students, postdoctoral researchers, and numerous master-level students, demonstrating a strong commitment to academic development.

International and National Collaborations

Dr. Sémeril has cultivated active research collaborations with leading universities and institutions across Turkey, India, Japan, Tunisia, and France. These partnerships have yielded productive joint publications and shared funding initiatives, enhancing cross-cultural and interdisciplinary scientific exchange. His national network includes prominent French universities and CNRS institutes, contributing to both fundamental research and applied science.

Legacy and Future Contributions

Through a blend of pioneering research, mentorship, and collaboration, Dr. Sémeril has established a lasting legacy in the field of organometallic chemistry. His ongoing work in supramolecular catalysis and capsule-assisted reactivity is poised to generate further breakthroughs in sustainable and efficient synthetic methodologies. He continues to inspire emerging researchers and influence the direction of chemical sciences in academia and beyond.

Notable Publications

Homo- versus hetero- [2+2+2] rhodium-catalyzed cycloaddition: effect of a self-assembled capsule on the catalytic outcome
Authors: Maxime Steinmetz, David Sémeril
Journal: Molecules
Year: 2025

Silver-NHC complexes against a clinical isolate of Acanthamoeba castellanii: time- and dose-dependent effects
Authors: Zübeyda Akın-Polat, Neslihan Şahin*, Shaima Hkiri, Bui Minh Thu Ly, İsmail Özdemir, David Sémeril
Journal: Inorganics
Year: 2025

Molecular modeling is key to understanding supramolecular resorcinarenyl capsules, inclusion complex formation and organic reactions in nanoconfined space
Authors: Maxime Steinmetz, David Sémeril
Journal: Molecules
Year: 2025

Effect of the positioning of metal centers on a cavitand in the ruthenium-catalyzed N-alkylation of amines
Authors: Neslihan Şahin, Christophe Gourlaouen, David Sémeril
Journal: Molecules
Year: 2025

Hydrogenation versus hydrosilylation: the substantial impact of a palladium capsule on the catalytic outcome
Authors: Maxime Steinmetz, Rachel Schurhammer, Christophe Gourlaouen, David Sémeril
Journal: Molecules
Year: 2024

Conclusion

Dr. David Sémeril exemplifies excellence in scientific research, mentorship, and academic leadership. His multidisciplinary expertise, international collaborations, and strong publication record mark him as a key contributor to modern organometallic and catalytic chemistry. His ongoing efforts are not only advancing scientific understanding but also shaping the future of sustainable chemical processes and innovation.

 

Myrtil Kahn | Coordination Chemistry | Best Researcher Award

Published on by Analytical Chemistry

Dr. Myrtil Kahn | Coordination Chemistry | Best Researcher Award

CNRS | France

Profiles

Scopus
Orcid

Early Academic Pursuits

Dr. Myrtil L. Kahn began her academic journey with a PhD in molecular compounds, under the supervision of a renowned expert in the field of coordination chemistry. Her doctoral work laid a strong foundation in molecular chemistry, which she later expanded into interdisciplinary domains. Her postdoctoral research included advanced work on ferrite nanoparticles and intermetallic particles, which positioned her at the intersection of nanoscience, materials chemistry, and applied physics.

Professional Endeavors

Following her postdoctoral experience, Dr. Kahn joined CNRS and quickly rose through the ranks to become a Senior Scientist and Research Director. She currently leads the “Nano-chemistry, Organization, and Sensors” team at the Laboratory of Coordination Chemistry (LCC) and also co-directs a multidisciplinary research initiative in collaboration with another leading national laboratory. This joint effort culminated in the establishment of a CNRS-affiliated joint research laboratory, reflecting her leadership in managing strategic partnerships with key industrial and governmental stakeholders, including aerospace and space agencies.

Contributions and Research Focus

Dr. Kahn’s research centers on nanoscience and its application to broad societal challenges such as energy, environment, space, aeronautics, and health. She has significantly contributed to the design and synthesis of hybrid nano-objects and multifunctional coatings. Her work focuses on controlling the structural and functional properties of nanoparticles particularly semiconductor and magnetic oxides and integrating them into real-world devices. Utilizing a safe-by-design philosophy, she innovates at the interface of molecular chemistry, surface science, and nanotechnology. Her research also emphasizes understanding surface-ligand interactions through advanced techniques like NMR spectroscopy, which is crucial for ensuring colloidal stability and optimizing material behavior in biological and industrial environments.

Impact and Influence

Dr. Kahn has established herself as a leader in applied nanosciences, successfully bridging fundamental chemistry with device integration. Her research has attracted substantial funding through over thirty competitive contracts, nearly half of which involve industrial collaborations. These projects have led to multiple patents with international extensions, showcasing her commitment to innovation and knowledge transfer. Beyond scientific output, her leadership in organizing large-scale conferences and her role in interdisciplinary teams underscore her influence across both academic and industrial landscapes.

Academic Citations

Her research excellence is reflected in her strong citation metrics. With thousands of citations and an impressive h-index, her work enjoys sustained recognition in the global scientific community. She has authored more than a hundred publications in peer-reviewed international journals, contributed to several book chapters, and is actively involved in reviewing and editorial responsibilities within leading scientific events and journals.

Technical Skills

Dr. Kahn possesses deep technical expertise in organometallic synthesis, nanoparticle surface chemistry, colloidal stability, and functional coatings. She has extensive experience in spectroscopic analysis, particularly NMR, for the investigation of ligand dynamics and surface coordination. Her proficiency extends to hybrid material fabrication, integration of nanoparticles into sensors and devices, and the development of safe-by-design methodologies. This multidisciplinary toolkit enables her to work effectively at the interface of chemistry, physics, and biology.

Teaching Experience

While her primary role is research-intensive, Dr. Kahn actively contributes to mentoring young researchers and postdoctoral fellows. She fosters scientific development through collaborative research, co-authorship, and direct supervision. Her mentorship style is marked by encouraging innovation and interdisciplinary approaches, preparing early-career scientists for careers in both academia and industry.

Legacy and Future Contributions

Dr. Kahn’s legacy is one of impactful science, interdisciplinary collaboration, and societal relevance. Her commitment to applied nanoscience has led to the development of novel materials and processes with potential applications in biotechnology, aerospace, and environmental technology. As co-director of a cutting-edge joint research lab, she continues to expand her collaborative reach, ensuring that her contributions influence the next generation of researchers. Her ongoing projects in multifunctional nanocomposites and hybrid processes promise continued breakthroughs in high-performance materials.

Notable Publications

Competition between ordered morphologies of functionalized silver nanoparticles elucidated by a joint experimental and multiscale theoretical study

Authors: David Loffreda; Nathalie Tarrat; Corinne Lacaze‑Dufaure; Franck Rabilloud; Katia Fajerwerg; Myrtil L. Kahn; Vincent Collière; Christine Lepetit; Pierre Fau
Journal: Nano Today
Year: 2025

Understanding Ion‑Exchange Processes in the Synthesis of ZnSₓ@ZnO₁₋ₓ Heterostructures from Controlled Sulfidation of ZnO Nanocrystals

Authors: Ekaterina Bellan; Martin Jakoobi; Vincent Collière; Yannick Coppel; Julien Trébosc; Olivier Lafon; Pierre Lecante; Paul Fleurat‑Lessard; Céline Dupont; Jean‑Cyrille Hierso; Pierre Fau; Katia Fajerwerg; Lauriane Pautrot‑d’Alençon; Thierry Le Mercier; Myrtil L. Kahn
Journal: Chemistry of Materials
Year: 2024

Spontaneous Emulsification of Organometallic Complexes Applied to the Synthesis of Nanocapsules Active for H₂ Release from Ammonia‑Borane

Authors: Olivier Gazil; Ludivine Rault; Déborah Iglicki; Vincent Collière; Gizem Karacaoglan; Didier Poinsot; Moad Bouzid; Jean‑Cyrille Hierso; Myrtil L. Kahn; Nick Virgilio; Fabienne Gauffre
Journal: Langmuir (The ACS Journal of Surfaces and Colloids)
Year: 2024

Synthesis of TiO₂/SBA‑15 Nanocomposites by Hydrolysis of Organometallic Ti Precursors for Photocatalytic NO Abatement

Authors: Ons El Atti; Julie Hot; Katia Fajerwerg; Christian Lorber; Bénédicte Lebeau; Andrey Ryzhikov; Myrtil L. Kahn; Vincent Collière; Yannick Coppel; Nicolas Ratel‑Ramond; Philippe Ménini; Pierre Fau
Journal: Inorganics
Year: 2024

Conclusion

Dr. Myrtil L. Kahn stands as a prominent figure in nanoscience and coordination chemistry. Her pioneering research, strong industrial collaborations, and leadership in both national and international scientific communities demonstrate her eligibility for high-level scientific honors. Through her interdisciplinary vision and dedication to real-world impact, she continues to shape the future of materials science and remains an exemplary model for academic and industrial synergy.

 

Georgy Mochalov | Inorganic Chemistry | Best Researcher Award

Published on by Analytical Chemistry

Prof. Dr. Georgy Mochalov | Inorganic Chemistry | Best Researcher Award

Nizhny Novgorod State Technical University named after R.E. Alekseev, Russia

👨‍🎓Profiles

🎓 Early Academic Pursuits

Prof. Dr. Georgy Mochalov began his academic journey at the prestigious National Research Lobachevsky State University of Nizhny Novgorod, where he laid a strong foundation in the field of chemical sciences. Further sharpening his expertise, he underwent professional training at the G.G. Devyatykh Institute of Chemistry of High-Purity Substances under the Russian Academy of Sciences. This early academic background equipped him with the critical knowledge needed for his future pioneering work in high-purity chemical production.

💼 Professional Endeavors

With an impressive career spanning over 50 years, Prof. Dr. Mochalov has devoted his professional life to the advancement of chemical technologies, specifically focusing on the development of processes for synthesizing and purifying high-purity volatile silicon compounds and alkyl organometallic compounds. His professional journey is closely linked to Nizhny Novgorod State Technical University named after R.E. Alekseev, Russia, where he has played a significant role in both academic and industrial research.

🔬 Contributions and Research Focus

Prof. Dr. Mochalov is recognized for his outstanding contributions in developing technologies for the synthesis, deep purification, and analysis of high-purity volatile substances. His research focuses primarily on alkyl compounds of cadmium, zinc, tellurium, as well as hydrides and chlorides of silicon. His work also addresses the vital need for safe and sustainable waste disposal methods for hazardous materials such as silicon and germanium tetrachlorides.

🌍 Impact and Influence

Through his research and innovations, Prof. Dr. Mochalov has greatly influenced the fields of materials science and semiconductor technology. His development of high-pressure distillation processes for purifying silane and the creation of gas chromatographic methods for analyzing various volatile compounds has had a profound impact on both academia and industry, particularly in the production of ultra-pure substances critical for advanced electronic applications.

🏆 Patents and Industry Contributions

A prolific innovator, Prof. Dr. Mochalov holds 9 patents related to the synthesis and purification of volatile compounds and waste treatment technologies. His consultancy and industry engagements span 3 major projects, underscoring his role as a trusted expert for advancing technological solutions in industrial chemistry.

🧪 Technical Skills

Prof. Dr. Mochalov is skilled in developing gas chromatographic analytical techniques, high-pressure distillation processes, and designing systems for synthesizing and purifying high-purity silicon-based and organometallic compounds. His technical acumen has been instrumental in creating scalable solutions for both laboratory and industrial applications.

👨‍🏫 Teaching Experience

Alongside his research, Prof. Dr. Mochalov has mentored and guided students and young researchers at Nizhny Novgorod State Technical University. His teaching experience is enriched by decades of hands-on research and development, making him a valued academician and mentor in his department.

🌟 Legacy and Future Contributions

Prof. Dr. Mochalov’s legacy lies in his significant advancements in high-purity compound synthesis and purification, which continue to influence semiconductor and materials industries globally. Looking forward, he aims to further innovate in the field of waste management and green chemistry by enhancing methods for the safe and efficient disposal of toxic chlorides and organometallic by-products.

📖Notable Publications

Promising Catalyst for Chlorosilane Dismutation
Authors: O. Zhuchok, Y. Stolmakov, A.A. Kalinina, N. Maleev, G.M. Mochalov
Journal: Sci
Year: 2024

Plasma-Chemical Disposal of Silicon and Germanium Tetrachlorides Waste by Hydrogen Reduction
Authors: R.A. Kornev, I.B. Gornushkin, L.V. Shabarova, D. Belousova, N. Maleev
Journal: Sci
Year: 2024

Synthesis, Structure, and Biological Activity of the Germanium Dioxide Complex Compound with 2-Amino-3-Hydroxybutanoic Acid
Authors: A.V. Kadomtseva, G.M. Mochalov, M.A. Zasovskaya, A.M. Ob’’edkov
Journal: Inorganics
Year: 2024