Physico-chemical mechanisms of redox processes with electron transfer involved in vital, technological and environmental systems

Programme

Research project within the State Program financed by the National Agency for Research and Development of the Republic of Moldova

Strategic priority

V. Economic competitiveness and innovative technologies

Strategic direction

3.  Materials, innovative technologies and products

Code
ANCD/20.80009.5007.27
Duration
2020-2023
Institutions
  1. Institute of Chemistry, Centre of Physical and Inorganic Chemistry, Laboratory of Physical and Quantum Chemistry
  2. State University of Moldova, Faculty of Chemistry and Chemical Technology
  3. Technical University of Moldova, Department of Oenology and Chemistry 
Project manager

Academician, dr. habilitate, professor Gheorghe DUCA

Team:

The team of the Institute of Chemistry

Cor. memb. GERU Ion Dr. ARSENE Ion
Dr. GORINCIOI Natalia   Dr. IALTICENCO Olga
Dr. habilitate COVALIOVA Olga   VICOL Crina
Dr. GORBACIOV Mihai HRAMCO Constantin
Dr. BARBA Alic SCALEȚCHI Valentina
Dr. ROMANCIUC Lidia MIDONI Irina
Dr. BALAN Iolanta BLAJA Piotr
Dr. ANGHEL (CAZACU) Lilia PIATÎGHIN Serghei
Dr. habilitate ZINICOVSCAIA Inga Dr. BOLOCAN Natalia
Dr. GORINCIOI Elena  

     

Abstract

Chemical reactions with electron transfer between oxidants and reducing agents lay in the base of most important processes in living organisms and in the environment. These transformations involve complex processes and require detailed research on electronic structure, thermodynamics, kinetics and catalysis of redox reactions. Although up until now multiple studies have been conducted in this area, the problem is far from being resolved. In particular, the role of vibronic coupling in forming the electron transfer barrier and its possible manipulation is not explored. Not all pathways for the transformation of substances with reducing properties have been comprehensively studied, particularly those of the classes of enodiols, thiols, polyphenols and vitamins. In the same context, the problem of preventing negative effects caused by oxidants, such as damage to living cells, DNA, proteins and lipids remains unresolved.
The proposed study will contribute to solving the aforementioned problems as well as other related ones. In carrying out this project, the Institute of Chemistry in partnership with the State University of Moldova and the Technical University of Moldova will conduct interdisciplinary fundamental studies using a diverse range of chemical and physical methods, which will cover various fields of chemistry, in particular quantum chemistry, food and ecological chemistry, etc.

The following series of research will be carried out:

• Theoretical study of the mechanisms of charge transfer reactions using quantum-chemical calculations of electronic structure and vibronic theory;
• Model of the kinetics and thermodynamics of redox reactions, research the impact of reducing substances on the processes of self-purification of the aquatic environment and the photocatalytic oxidation of emerging pollutants;
• Synthesis and study of carbon quantum dots with antioxidant properties for application in biomedicine and the use of nuclear magnetic resonance spectroscopy for food quality control;
• Exploration of the action synergism of antioxidants, study of the lipid oxidation and establishing the associative interactions between antioxidants and lactoferin for the design of new functional and nutraceutical foods;
• Kinetic study of antioxidants action on the methanogenic  microorganisms activity in anaerobic fermentation of biochemical systems.

The envisaged research will contribute to the accumulation of new knowledge regarding the essence of the oxidation-reduction processes, reveal and theoretical justification of key mechanisms, discovery of new aspects of methods of controlling the redox reactions, all of which have a major interest for life and health, food products quality, as well as the state of the environment.
The intelligent management of the obtained results will stimulate the development of innovative targeted products, which will contribute to the economic development of the country. At the same time, the results will serve as basis for applying to international programs Horizon 2020, Horizon Europe 2027, COST, USNSF, NATO.
The results of the project will be the subject of discussion at seminars and scientific conferences, published in impact factor journals, incorporated into lectures for bachelors, masters and doctoral students, all the while contributing to the increase of the level of teaching and aspiration of young researchers in the development of their scientific career.

Results, activities

The project addressed a series of complex studies in the field of quantum chemistry, ecological, and food sciences. Initially, a detailed computational study was conducted on dihydroxyfumaric acid, identifying 45 isomers and analyzing their relative abundance in various environments. The isomerization and tautomerization process of three stable isomers was investigated, determining the kinetic and thermodynamic parameters. Global and local reactivity indices were calculated, validating the KID procedure and exploring the antioxidant mechanism of the acid.

The studies included predictive analyses of the pharmacokinetic properties and the potential to inhibit the main protease of the SARS-CoV-2 virus. It was demonstrated that proton transfer can be controlled by the Pseudo-Jahn-Teller Effect. The antioxidant interactions of phenolic acids and flavonoids with free radicals were analyzed, highlighting significant synergies.

The project focused on the impact of oxidative conditions on lipid oxidation, relevant to the food industry, and on microbiological stabilization in winemaking, emphasizing the efficiency of natural antioxidants. The role of thiol substances and B-group vitamins in water self-purification was studied. Hydrochemical studies on the Nistru River identified negative influences and proposed methods to eliminate emerging pollutants.

Additionally, the project included studies on the oxidation mechanisms of pharmaceutical pollutants using the Fenton reagent, analysis, and monitoring of environmental pollution and food products in Moldova with metals using the neutron bombardment method. A new methodology was used to determine the synergy of antioxidants in grapes, analyzing their influence on composition and quality. The influence of antioxidants on the biochemical fermentation process was also investigated.

The study explored the oxidation of natural catechins and their resistance to oxidation, obtaining experimental wines from various grape varieties to analyze the oxidability of polyphenols and the impact of chemical transformations on the quality of wine products.

Scientific events:

Scientific seminar,
September 07 - 09, 2021
(online)		 Scientific seminar (online):  “RECENT SCIENTIFIC ACHIEVEMENTS IN QUANTUM CHEMISTRY AND THEORY OF VIBRONIC EFFECTS IN MOLECULAR SYSTEMS”, with participation of Academician Isaac BERSUKER, Professor of Texas University, USA.
Two public lectures ant two oral scientific reports were presented.
The seminar was attended by about 40 researchers.
Program
The 7th International Conference "Ecological and Environmental Chemistry-2022", EEC-2022,
March 3-4, 2022 
(online)		 On March 3-4, 2022, in Chisinau, Republic of Moldova was held the 7th International Conference: "Ecological and Environmental Chemistry" (EEC-2022). 

The EEC-2022 Conference is part of a series of successful conferences organized in 1995, 2002, 2005, 2008, 2012 and 2017, supported by different international organizations such as UNESCO, CRDF/MRDA, CEI, NATO, ONRG, as well as the local R&D organizations.
The EEC-2022 Conference was an important international event that attracted more than 270 scientists, researchers, engineers, experts and students from 30 countries, specifically:  Armenia, Algeria, Azerbaijan, Belarus, Brazil, Canada, China, Czech Republic, Finland, France, Georgia, Hungary, Israel, Italy, Iraq, Kazakhstan, Moldova, Montenegro, Morocco, Poland, Romania, Russia, South Korea, Switzerland, Turkey, Vietnam, Ukraine, Uzbekistan and USA.

   Within the EEC-2022 Conference the following presentations were held:

  • The Academic Lecture, delivered by Academician, Professor Gheorghe Duca;
  • 8 Plenary Presentations provided by worldwide recognized scientists;
  • 80 Oral Presentations in the Five Parallel Sessions, presented by the experienced and young scientists from the above mentioned countries;
  • 165 Poster Presentations discussed on-line by the conference participants.


The two Volumes of the Abstract Book have been published, which include 260 Abstracts presented by participants of the EEC-2022 Conference.

Scientific seminar ”Landmarks on the time axis. Edition dedicated to the 85th birth anniversary of the correspondent member Ion GERU",
December 8, 2022

 The seminar was attended by about 40 persons.
Program
Scientific Webinar entitled  ”Spontaneous Symmetry Breaking and Jahn-Teller Effects, dedicated to the 95th birthday of Academician Isaac BERSUKER”, February 10, 2023

The main aim of the Webinar is to pay tribute to the illustrious scientist Academician Isaac BERSUKER, who will mark the 95th anniversary of  birth on February 12, 2023.

Program

 

Publications

Monographs

  1. DUCA, Gh., VASEASHTA, A. Fundamental and Biomedical Aspects of Redox Processes. IGI Global: U.S.A., 2023, vol. 1, 495 p. ISBN13: 9781668471982/ISBN10: 1668471981/EISBN13: 9781668472002. 10.4018/978-1-6684-7198-2
  2. DUCA, Gh., VASEASHTA, A. Environmental and Technological Aspects of Redox Processes. Ed.: IGI Global, USA, 2023, vol. 2, 435 p. ISBN13: 9798369305126, EISBN13: 9798369305140. https://doi.org/10.4018/979-8-3693-0512-6.
  3. VASEASHTA, A.; DUCA, Gh.; TRAVIN, S. Handbook of Research on Water Science and Society. IGI Global, USA, 2022, 1, 931 p. DOI: http://doi.org/10.4018/978-1-7998-7356-3
  4. DUCA, Gh.; VASEASHTA, A. Handbook of Research ”Emerging Developments and Environmental Impacts of Ecological Chemistry”. IGI Global, SUA., 2020. 649 p. https://doi.org/10.4018/978-1-7998-1241-8
  5. MOCANU, L., GONŢA, M., DUCA, Gh., MATVEEVICI, V. Aplicarea metodelor fizico-chimice combinate la înlăturarea poluanților textili din soluții apoase. CEP USM: Chisinau, 2023, 194 p. ISBN 978-9975-62-511-1
  6. DUCA, Gh. (Ed.) Proceselor redox cu transfer de electroni și protoni. CEP USM: Chisinau, 2023, 493 p.  (în tipar)
  7. BLONSCHI, V.; GLADCHI, V.; DUCA, Gh. Participarea substanțelor tiolice în procese de autopurificare chimică a apelor naturale. Chișinău: CEP USM, 2022, 138 p. ISBN 978-9975-159-45-6. http://catalog.bnrm.md/opac/bibliographic_view/1163561?pn=opac%2FSearch&q=Participarea+substan%C8%9Belor+tiolice+%C3%AEn+procese+de+autopurificare+chimic%C4%83+a+apelor+naturale+%3A+Monografie#level=all&location=0&ob=asc&q=Participarea+substan%C8%9Belor+tiolice+%C3%AEn+procese+de+autopurificare+chimic%C4%83+a+apelor+naturale+%3A+Monografie&sb=relevance&start=0&view=CONTENT
  8. LIS, Angela; GLADCHI, Viorica; DUCA Gheorghe. Legități de transformare fotochimică a unor substanțe tiolice în sistemele acvatice. Chișinău: CEP USM, 2022. 194 p. ISBN 978-9975-159-85-2
  9. DUCA, Gh. Abstract Book of the 7th International Converence: Ecological and Environmental Chemistry. Chisinau : CEP USM, 2022, 1, 230 p. ISBN 978-9975-159-07-4, DOI : http://dx.doi.org/10.19261/eec.2022.v1
  10. DUCA, Gh. Abstract Book of the 7th International Converence: Ecological and Environmental Chemistry. Chisinau : CEP USM, 2022, 2, 350 p. ISBN 978-9975-159-07-4, DOI: http://dx.doi.org/10.19261/eec.2022.v2


Chapters in monographs 

  1. TRAVIN, S., DUCA, Gh. Electron and Proton Transfer Mechanisms from Marcus to Supramolecular Constructions. In.: Fundamental and Biomedical Aspects of Redox Processes, Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.1., Chapter 1,  p.1-26.
  2. DUCA, Gh., TRAVIN, S. Molecular Oxygen Activation Mechanisms in the Environmentally Significant Chemical Technologies. In.: Fundamental and Biomedical Aspects of Redox Processes, Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.1., Chapter 2, p.27-38.
  3. DUCA, Gh., TRAVIN, S. Hydrogen Peroxide, a Substance that Conquered the World. In.: Fundamental and Biomedical Aspects of Redox Processes, Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.1., Chapter 3,  pp. 39-70.
  4. GORINCHOY, N.; BALAN, I.; GORBACHEV, M.; ARSENE, I.; POLINGER, V.; DUCA, GH.; BERSUKER, I.B. Pseudo Jahn-Teller Effect in the Transition States of Redox Processes. Gheorghe Duca, Ashok Vaseashta (Eds.) Fundamental and Biomedical Aspects of Redox Processes. IGI Global, USA, 2023, Ch.4, pp. 71-110.
  5. GORBACHEV, M.; GORINCHOY, N.; BALAN, I.; ARSENE, I. Relationships Electronic Structure-Antioxidant Action for Chemical Compounds: A Quantum Chemical Study. Gheorghe Duca, Ashok Vaseashta (Eds.) Fundamental and Biomedical Aspects of Redox Processes. IGI Global, USA, 2023, Ch.6, pp. 143-158.  BOLOCAN, N., DUCA, Gh. Dihydroxyfumaric Acid. Transformations, Importance and Applications, New Derivatives: Review of Experimental and Theoretical Research. In.: Duca Gh., Vaseashta A. (Eds.) Fundamental and Biomedical Aspects of Redox Processes.  IGI Global, USA, 2023, Vol.1, Chapter 9, p. 198-223.
  6. VICOL, C., DUCA, Gh. Synergistic, Additive, Antagonistic Effects and the Prooxidant Character of Antioxidants. Interactions in Natural Compounds. In.: Fundamental and Biomedical Aspects of Redox Processes, Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.1., Chapter 10, p. 224-249.
  7. YALTYCHENKO, O.; GORINCHOY, N.; DUCA, G. The Immune Response Modeling to a Viral Load: A Minimal Model. Gheorghe Duca, Ashok Vaseashta (Eds.) Fundamental and Biomedical Aspects of Redox Processes. IGI Global, USA, 2023, Ch.13, pp. 302-314.  
  8. ANGHEL, L.; ERHAN, R.-V. Versatility and specificity of oxidoreductases in the electron transfer reactions. În: ”Fundamental and Biomedical Aspects of Redox Processes”. DUCA, Gh.; VASEASHTA, A., Editura IGI Global, USA, vol.1, 2023, pp. 327- 343.
  9. GONTA, M., MOCANU, L., DUCA. Gh. Redox Technologies in Wastewater Treatment for Removal of Pharmaceutical (Cephalexin) Contaminants. In.: Fundamental and Biomedical Aspects of Redox Processes, Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.1. Chapter 18, p. 400-416.
  10. GLADCHI, V., BUNDUCHI, E., BLONSCHI, V., ROMANCIUC, L. Redox Processes in Natural Waters. In.: Redox Processes within Environmental and Technological Contexts. Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.2, Chapter 2, pp. 20-42.   
  11. LIS, A., GLADCHI, V., DUCA, Gh., BUNDUCHI, E., BLONSCHI, V. Redox Self-purification Mechanism of Natural Waters with the Participation of Thioglycolic Acid and Thioure. In.: Redox Processes within Environmental and Technological Contexts. Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.2, Chapter 3, pp. 43-67.
  12. BLONSCHI, V., GLADCHI, V., DUCA, Gh., BUNDUCHI, E., LIS, A. Influence of Thiol Compounds on Redox State of Some Natural Waters in the Republic of Moldova. In.: Redox Processes within Environmental and Technological Contexts. Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.2, Chapter 4, pp. 68-89.  
  13. CRETESCU, I., BORODAEV, R., LUTIC, D., SOREANU, G., DUCA, Gh., RATNAWEERA, H. Redox measurements, a cheap and fast tool for preliminary ecotoxicity assessment of the surface waters: An early warning system for water pollution monitoring. In.: Redox Processes within Environmental and Technological Contexts. Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.2, Chapter 8, pp. 119-131. 
  14. DUCA, Gh., STURZA, R., COVALIOVA, O., COVACI, E., ROMANCIUC, L., TAȘCA, C. Modification of Waste Biomass Digestion in the Presence of Additives of Bioactive Substances. In.: Redox Processes within Environmental and Technological Contexts. Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.2, Chapter 9, pp. 149-165. 
  15. POPOVICI, V., STURZA, R., GHENDOV-MOSANU, A. Technological and Environmental Factors Impact on the Antioxidation Mechanism of Oil Lipids. Handbook of Research on Environmental and Technological Aspects of Redox Processes, U.S.A. IGI Global, Vol.2, 2023, Chapter 15, p. 212-237.
  16. DUCA, Gh., COVALIOVA, O., COVALIOV, V., ROMANCIUC, L., VASEASHTA, A. Combined Ferrite Treatment of Multi-Component Wastewaters. In.: Redox Processes within Environmental and Technological Contexts. Duca Gh., Vaseashta A., Ed.: U.S.A. IGI Global, 2023, Vol.2, Chapter 13, pp. 238-252. DOI: 10.4018/979-8-3693-0512-6.ch013
  17. STURZA, R., SCUTARU, I., DUCA, Gh. Redox Processes in Grape Processing. In.: Redox Processes within Environmental and Technological Contexts. Duca Gh., Vaseashta A., Ed.: U.S.A.IGI Global, 2023, Vol.2, Chapter 15, pp. 276-306.
  18. DUCA,Gh. Modelarea matematica a proceselor chimice. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 19-25. (in tipar)
  19. BOLOCAN, N., BĂLAN, I., DUCA Gh. Metodologia calculelor cuanto-chimice. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 26-29. (in tipar)
  20. DUCA, Gh., GORBACEV, M. Teoriile de transfer de electroni si protoni si necesitatea dezvoltării lor. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 30-61. (in tipar)
  21. BALAN, I.; GORINCHOY, N.; GORBACHEV, M.; ARSENE, I.; BERSUKER, I.B. Originea Pseudo Jahn-Teller a barierei energetice a proceselor chimice. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, cap.6, pp. 62-97. (in tipar)
  22. GORBACIOV, M., GORINCIOI, N., BĂLAN, I., ARSENE, I. Studiul cuanto-chimic al relației structura electronică - acțiune antioxidantă a unor compușii chimici. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 98-122. (in tipar)
  23. IALTYCHENKO, O., GORINCHOY, N., DUCA, Gh. Modelarea răspunsului imun la o sarcină virală: Model minimal. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 123-134. (in tipar)
  24. BOLOCAN N., DUCA, Gh. Cercetarea proprietăților antiradicalice ale acidului dihidroxifumaric și a unor derivați ai săi cu aplicarea metodelor cinetice și computaționale. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 135-158. (in tipar)
  25. VICOL, C., DUCA, Gh. Interacțiuni antioxidante dintre unii compuși naturali din struguri. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 159-183. (in tipar)
  26. GORINCIOI, E., BARBA, A., VICOL, C. Datele spectrale RMN - mărturii notabile în studiile interacțiunilor antioxidante: Studii de caz privind unii metaboliți din struguri. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 184-198. (in tipar)
  27. CAZACU, L. Proprietăți structurale și mecanisme de interacțiune ale unor macromolecule cu activitate antioxidantă cercetate prin metoda de împrăștiere la unghiuri mici. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 199-210. (in tipar)
  28. DUCA, Gh., COVALIOV, V., COVALIOVA, O., ROMANCIUC, L., TASCA, C. Studiul proceselor redox în sisteme biochimice în prezența antioxidanților. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 211-237. (in tipar)
  29. BUNDUCHII, E., DUCA, Gh. Mecanisme de autopurificare chimică a apelor naturale, cu utilizarea teoriei proceselor redox. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 238-248. (in tipar)
  30. BUNDUCHII, E., DUCA, Gh., GLADCHI, V. Monitorizarea, în baza indicatorilor cinetici, a proceselor de autopurificare chimică redox a apelor naturale. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 250-258. (in tipar)
  31. LIS, A., DUCA, Gh., GLADCHI, V., BUNDUCHI, E., BLONSCHI, V. Modelarea proceselor de autopurificare a apelor în prezența compușilor tiolici. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 259-289. (in tipar)
  32. BLONSCHI, V., GLADCHI, V., LIS, A., CULEA, M. Modelarea proceselor de autopurificare a apelor în prezența vitaminelor grupului B. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 290-301. (in tipar)
  33. BUNDUCHII, E., BORODAEV, R., GLADCHI, V., Lis, A. Evaluarea capacității sistemului redox de autopurificare a apelor lacului Dănceni la poluarea cu tioli și vitamine. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 302-316. (in tipar)
  34. GLADCHI, V., BLONSCHI, V., BUNDUCHI, E., LIS, A. Compoziția chimică, procese de poluare și autopurificare a fluviului Nistru în porțiunea barajul Dubăsari (amonte r. Răut) – or. Vadul lui Vodă  (amonte r. Ichel). Perioada anilor 2020 – 2022. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 317-336. (in tipar)
  35. BLONSCHI, V., GLADCHI, V. Dinamica conținutului compușilor tiolici în apele lotice și lentice din Republica Moldova. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 337-345. (in tipar)
  36. BORODAEV, R. Continutul şi legităţile migrării diverselor forme existenţionale ale cuprului şi fierului în apele bazinului Nistru de jos pe parcursul anilor 2015-2022. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 346-368. (in tipar)
  37. GONȚA, M., MOCANU, L., MATVEEVICI, V. Oxidarea fotocatalitică eterogenă cu dioxid de titan a antibioticelor și antiinflamatoarelor din soluții apoase. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 369-397. (in tipar)
  38. MOCANU, L., GONȚA, M., MATVEEVICI, V. Oxidarea catalitică omogenă a produselor medicamentoase din sisteme apoase model. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 398-422. (in tipar)
  39. STURZA, R., DRUŢĂ, R., COVACI, E., SUBOTIN, Iu. Cinetica oxidării forţate a uleiurilor de floarea soarelui, seminţe de struguri, nuc, porumb sub acţiunea diferitor factori. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 423-442. (in tipar)
  40. STURZA, R., COVACI, E., SUBOTIN, Iu., DRUŢĂ, R., DUCA, Gh. Polifenolii din vinurile moldovenești și implicarea lor în procese antioxidante și anti-stres. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 443-474. (in tipar)
  41. ZINICOVSCAIA, I., DUCA, Gh. Impactul elementelor chimice determinate prin analiza de activare cu neutroni asupra calitatii mediului ambiant in Republica Moldova. In Monografia „Procese redox cu transfer de  electroni și protoni”. CEP USM: Chisinau, 2023, pp. 475-489. (in tipar)
  42. VASEASHTA, A.; DUCA, GH.; COVALIOVA, O.; ROMANCIUC, L. Water Safety, Security, and Sustainability - Emerging Trends and Future Pathways. In: VASEASHTA, A.; DUCA, Gh.; TRAVIN, S. (Eds.) In: Handbook of Research on Water Sciences and Society. IGI Global, SUA, 2022, pp. 1-36. DOI: http://doi.org/10.4018/978-1-7998-7356-3.ch001
  43. BUNDUCHI, E.; DUCA, Gh.; GLADCHI, V. New Kinetic Parameters for Natural Water Quality Assessment. In: VASEASHTA, A.; DUCA, Gh.; TRAVIN, S. (Eds.) In: Handbook of Research on Water Sciences and Society, USA, 2022, 1, pp. 257-270.  DOI: http://doi.org/10.4018/978-1-7998-7356-3.ch004
  44. BOGDEVICI, O.; DUCA, GH.; SIDOROFF, M.E.; STANICA, A.; PERSOIU, A.; VASEASHTA, A. Groundwater Resource Investigation Using Izotope Technology ob River-Sea System.  In: VASEASHTA, A.; DUCA, Gh.; TRAVIN, S. (Eds.) In: Handbook of Research on Water Sciences and Society. IGI Global, USA, 2022, 1, pp. 87-100. DOI: http://doi.org/10.4018/978-1-7998-7356-3.ch004
  45. GLADCHI, V.; BUNDUCHI, E.; BLONSCHI, V.; ROMANCIUC, L. Hydrochemistry of Polluted Surface Water: Case Study of Moldova. In: VASEASHTA, A.; DUCA, Gh.; TRAVIN, S. (Eds.) In: Handbook of Research on Water Sciences and Society. IGI Global, USA, 2022, 1, pp. 501-529. DOI: http://doi.org/10.4018/978-1-7998-7356-3.ch022 
  46. GLADCHI, V.; BUNDUCHI, E.; BLONSCHI, V.; ROMANCIUC, L. Chimia ecologică a apelor naturale și procese de autopurificare a sistemelor acvatice. Istoria și dezvoltarea la Universitatea de Stat din Moldova. In: Chimie ecologică: istorie și realizări: Academicianul Gheorghe Duca, 70 ani de la naștere: Monografie. Coordonatori ed.: V. Gladchi, A. Arîcu. Chișinău: CEP USM, 2022, pp. 37-85.
  47. ROMANCIUC, L. Overview of the Ecological and Environmental Chemistry International Conferences in the Republic of Moldova within the 1985-2022. In: Chimie ecologică: istorie și realizări: Academicianul Gheorghe Duca, 70 ani de la naștere: Monografie. Coordonatori ed.: V. Gladchi, A. Arîcu. Chișinău: CEP USM, 2022, pp. 284-302. ISBN 978-9975-159-05-0.
  48. GORINCIOI, N.N.; BERSUKER, I.B. Origin of puckering (buckling) of planar heterocycles and methods of its suppression. In: Heterocycles, Danielsen J.M. (ed.), Nova Science Publishers, Inc., 2020, Chapter 3, pp. 129-188. ISBN: 978-1-53617-804-3. https://novapublishers.com/shop/heterocycles-synthesis-reactions-and-applications/ 
  49. DUCA, Gh.; COVALIOV, V.; COVALIOVA, O. Intensive Biochemical Processes of Wastewater Treatment with High Caloricity Biogas Production. In Handbook of Research. In:” Emerging Developments and Environmental Impacts of Ecological Chemistry”. IGI Global, SUA., 2020, pp. 291-306. DOI: http://doi.org/10.4018/978-1-7998-1241-8.ch013
  50. DUCA, Gh.; MEREUTA, A.; TĂNĂSELIA, C.; LEVEI, E.; VELISCO, N. Assessment of Surface Water Pollution With Heavy Metals. In; Handbook of Research” Emerging Developments and Environmental Impacts of Ecological Chemistry”. IGI Global, SUA., 2020, pp. 212-228. DOI: http://doi.org/10.4018/978-1-7998-1241-8.ch010
  51.  GLADCHI, V., BUNDUCHI, E.; ROMANCIUC, L. Ecological Chemistry of the Natural Waters. In:” Emerging Developments and Environmental Impacts of Ecological Chemistry”, IGI Global, SUA, 2020, Chapter 9, pp. 197-211. DOI: http://doi.org/10.4018/978-1-7998-1241-8.ch009
  52. POVAR, I.; SPINU, O.; LUPASCU, T.; DUCA, Gh. Thermodynamic Stability of Natural Aqueous Systems. In: Handbook of Research” Emerging Developments and Environmental Impacts of Ecological Chemistry”. IGI Global, SUA., 2020, pp. 76-108. DOI: http://doi.org/10.4018/978-1-7998-1241-8.ch004
  53. GONŢA, M. The Study of N-Nitrosoamines Formation in Model and Real Gastric Juice Systems.În:”Handbook of Research on Emerging Developments and Environmental Impacts of Ecological Chemistry”. Red. Gh. Duca, A. Vaseashta. Ed.: IGI Global, SUA, 2020, pp. 491-510. ISSN: 23626-9162, eISSN: 2326-9170, doi: http://doi.org/10.4018/978-1-7998-1241-8.ch23
  54. STURZA, R.; SCUTARU, Yu.; DUCA, Gh.; Quality Management of Wines and Redox Processes. In: Proceedings of the XIVth  International Conference ”Management of Science and Engineering Management” ICMSEM, Editura: Springer, 2020, Volume 1191, pp. 583-591.
  55. VASEASHTA, A.; DUCA ,Gh,; CULIGHIN, E.; BOGDEVICI, O.; KHUDAVERDYAN, S. Smart and Connected Sensors Network for Water Contamination Monitoring and Situational Awareness. In: Functional Nanostructures and Sensors for CBRN Defence and Environmental Safety and Security (NATO Science for Peace and Security Series C: Environmental Security), January 2020, pp 283-296. doi: http://doi.org/10.1007/978-94-024-1909-2_19.


Articles in international journals

  1. ANGHEL, L.; RADA, S.; ERHAN, R.-V. Structural Factors and Electron Transfer Mechanisms in Flavoenzymes. Analytical Letters, 2023, 56(15), pp. 2412-2425. DOI: https://doi.org/10.1080/00032719.2023.2174131  (IF 2,267)
  2. DUCA, Gh., LIS, A., GLADCHI, V., TRAVIN, S. Indirect photolysis of cysteine and thiourea in the aquatic environment. Inorganica Chimica Acta, 2023, 557, 121682. DOI: https://doi.org/10.1016/j.ica.2023.121682 (IF 2,8)
  3. GORBACHEV, M.YU.; GORINCHOY, N.N.; BALAN, I.I. "Electronic aspects of the synergistic antioxidant interaction of various pairs ‘phenolic food acid and glutathione’ in their reactions with the stable radical cation ABTS+". International Journal of Organic Chemistry (IJOC), Vol.13 No.3, 2023, pp. 96-108. DOI: https://doi.org/10.4236/ijoc.2023.133008 (IF 1,26)
  4. GORINCHOY, N.; BALAN, I.; POLINGER, V.; BERSUKER, I.B. ”Inversion barrier in X2CE systems (X=H, F; E=O, S, Se) in their reduced and the first excited states as a Pseudo Jahn-Teller Effect”. Journal of Physics, Conference Series, 2023, 13 p. (IF 0,5) accepted
  5. YALTYCHENKO, O.; KANAROVSKII, Ev.  Consideration of the synergy of vitamins e and c in the kinetic model of lipid peroxidation. Surface Engineering and Applied Electrochemistry, 59(4), 2023, pp. 473-478. DOI:  https://doi.org/10.3103/S1068375523040038  (IF 0,243)
  6. LIS, A., GLADCHI, V., DUCA, Gh., TRAVIN, S. Indirect photolysis of cysteine and thiourea in the presence of metal ions in the aquatic environment. In: Inorganica Chimica Acta, 2023, 560, 121832. DOI: https://doi.org/10.1016/j.ica.2023.121832  (IF 2,8)
  7. YUSHIN, N.; ZINICOVSCAIA, I.; CEPOI, L.; CHIRIAC, T.; RUDI, L.; GROZDOV, D. Praseodymium (III) Removal from Aqueous Solutions Using Living and Non-Living Arthrospira platensis Biomass. Water, 2023, 15(11), 2064, pp. 1-15.  DOI: https://doi.org/10.3390/w15112064 (IF 3,530)
  8. PESHKOVA, A.; ZINICOVSCAIA, I.; CEPOI, L.; RUDI, L.; CHIRIAC, T.; YUSHIN, N.; SOHATSKY, A. Features of Copper and Gold Nanoparticle Translocation in Petroselinum crispum Segments. Nanomaterials, 2023, 13, 1754, pp. 1-14.  DOI: https://doi.org/10.3390/nano13111754  (IF 5,719)
  9. IVLIEVA, A.L.; PETRITSKAYA, E.N.; ROGATKIN, D.A.; ZINICOVSCAIA, I.; YUSHIN, N.; GROZDOV, D. Impact of Chronic Oral Administration of Gold Nanoparticles on Cognitive Abilities of Mice. International Journal of Molecular Science, 2023, 24, 8962.  DOI: https://doi.org/10.3390/ijms24108962 (IF 6,208)
  10. YUSHIN, N.; ZINICOVSCAIA, I.; CEPOI, L.; CHIRIAC, T.; RUDI, L.; GROZDOV, D. Cyanobacteria Arthospira platensis as an Effective Tool for Gadolinium Removal from Wastewater. Clean Technologies, 2023, 5, pp. 638-651.  DOI: https://doi.org/10.3390/cleantechnol5020032   (IF 3,7)
  11. ABULADZE, M.; ASATIANI, N.; KARTVELISHVILI, T.; KRIVONOS, D.; POPOVA, N.; SAFONOV, A.; SAPOJNIKOVA, N.; YUSHIN, N.; ZINICOVSCAIA, I. Adaptive Mechanisms of Shewanella xiamenensis DCB 2-1 Metallophilicity. Toxics, 2023, 11, 304.  DOI: https://doi.org/10.3390/toxics11040304   (IF 4,472)
  12. CEPOI, L., ZINICOVSCAIA, I., CHIRIAC, T., RUDI, L., YUSHIN, N., GROZDOV, D., TASCA, I., KRAVCHENKO, E., TARASOV, K. Modification of Some Structural and Functional Parameters of Living Culture of Arthrospira platensis as the Result of Selenium Nanoparticle Biosynthesis. Materials, 2023, 16(2), 852.  DOI: https://doi.org/10.3390/ma16020852  (IF 3,748)
  13. VICOL, C.; DUCA, Gh. Synergistic, Additive and Antagonistic Interactions of Grapes’ Phenolic Compounds and Organic Acids. Acta Chemica Slovenica, 2023, 70, p. 588–600. DOI: https://doi.org/10.17344/acsi.2023.8214  (IF 1,2)
  14. DUCA, GH.; ARICU, A.; GORINCHOY, N.; BALAN, I. Celebration of Academician Isaac Bersuker’S 95th Birthday!  Chemistry Journal of Moldova, 2023, 18(1), pp. 7-8. DOI: https://doi.org/10.19261/cjm.2023.1092
  15. GONŢA, M., DUCA, GH., SIRBU, E., ROBU, S., MOCANU, L. Synthesis of quercetin functionalized chitosan and determination of antioxidant properties. Chemistry Journal of Moldova, 2023, 18(1), pp. 38-45. DOI: http://doi.org/10.19261/cjm.2023.910
  16. TALMACI, N.; DRAGANCEA, D.; GORINCIOI, E.; BOUROSH, P.; KRAVTSOV; V. Crystal structure and NMR spectroscopic characterization of 1,5-bis(2-hydroxy-3-methoxybenzylidene) carbonohydrazide. Chemistry Journal of Moldova, 2023, 18(2), 8p. DOI: https://doi.org/10.19261/cjm.2023.1074
  17. DUCA, Gh,; COVALIOV, V.; COVALIOVA, O. Novel Materials and Reactors for the Efficient Electrochemical Porduction of Hydrogen. In: Environmental Engineering and Management Journal, 2022, 21(6), 1037-1046. http://www.eemj.icpm.tuiasi.ro (IF 0,9)
  18. CEPOI, L.; ZINICOVSCAIA, I.; RUDI, L.; CHIRIAC, T.; DJUR, S.; YUSHIN, N.; GROZDOV, D. Assessment of Metal Accumulation by Arthrospira platensis and Its Adaptation to Iterative Action of Nickel Mono- and Polymetallic Synthetic Effluents. In: Microorganisms, 2022, 10(5), p. 1041. DOI: https://doi.org/10.3390/microorganisms10051041 (IF 4,5)
  19. GORBACHEV, M.; GORINCHOY, N.; BALAN, I. Some particularities of the reaction between antioxidant phenolic acids and the free radical ABTS•+: A comparative DFT study for the gas phase and ethanol. In: Chemistry Journal of Moldova, 2022, 17(1), pp. 24-30. DOI: http://dx.doi.org/10.19261/cjm.2021.919
  20. DUCA, Gh.; TRAVIN, S.; VASEASHTA, A.; GLADCHI, V.; KOZLOV, Yu. Global warming – pro and contrary interpretations using modelling and analysis of two cities. In: International Journal of Global Warming (IJGW), 24(2), 2021, pp. 108-130. DOI: https://doi.org/10.1504/IJGW.2021.115894  (IF 0,9)
  21. GORBACHEV, M.YU., GORINCHOY, N.N., ARSENE, I. Key Role of Some Specific Occupied Molecular Orbitals of Short Chain n-Alkanes in Their Surface Tension and Reaction Rate Constants with Hydroxyl Radicals: DFT Study. In: International Journal of Organic Chemistry, 2021, 11(1), pp. 1-13. DOI: https://doi.org/10.4236/ijoc.2021.111001 (IF 1,26)
  22. VICOL, C.; CIMPOIU, C.; DUCA, G. Investigation of synergic/anti-synergic interactions of dihydroxifumaric acid and ascorbic acis with DPPH. In: Studia Universitatis Babeș-Bolyai Chemia, 2021, 66 (2), p. 49-58. DOI: https://doi.org/10.24193/subbchem.2021.2.04  (IF 0,56)
  23. ZINICOVSCAIA, I.; HRAMCO, C.; CHALIGAVA, O.; YUSHIN, N.; GROZDOV, D.; VERGEL, K.; DUCA, Gh. Accumulation of potentially toxic elements in mosses collected in the Republic of Moldova. In: Plants, 2021, 3(10), pp. 1-13. DOI: http://doi.org/10.3390/plants10030471 (IF 4,8)
  24. CIOCARLAN, A.; HRISTOZOVA, G.; ARICU, A.; DRAGALIN, I.; ZINICOVSCAIA, I.; YUSHIN, N.; GROZDOV, D.; POPESCU, V. Determination of the elemental composition of aromatic plants cultivated industrially in the republic of moldova using neutron activation analysis. In: Agronomy. 2021, 5(11), pp. 1-20. DOI: https://doi.org/10.3390/agronomy11051011  (IF 4,0)
  25. ZINICOVSCAIA, I.; YUSHIN, N.; GROZDOV, D. et.al. Removal of metals from synthetic and real galvanic nickel-containing effluents by Saccharomyces cerevisiae. In: Chemistry and Ecology, 2021, 1(37), pp. 83-103. DOI: https://doi.org/10.1080/02757540.2020.1817404   (IF 2,0)
  26. GORINCHOY, N., BALAN, I., POLINGER, V., BERSUKER, I. Pseudo Jahn-Teller origin of the proton-transfer energy barrier in the hydrogen-bonded [FHF]- system. In: Chemistry Journal of Moldova. 2021, nr. 1(16), pp. 115-120. DOI: http://dx.doi.org/10.19261/cjm.2021.834
  27. LIS, A., GLADCHI, V., DUCA, Gh., TRAVIN, S. Sensitized photolysis of thioglycolic acid in aquatic environment. In: Chemistry Journal of Moldova, 2021, 1(16), pp. 46-59. DOI: http://dx.doi.org/10.19261/cjm.2021.796
  28. GORBACHEV, M.Yu., GORINCHOY, N.N., OSIPOV, I. Accelerated decomposition of the fungicide, iprodione, on TiO2 surface under solar irradiation: experimental study and DFT mechanisms. J. Environmental Science and Health, Part B, 2020, 55(10), pp. 876-888.  https://doi.org/10.1080/03601234.2020.1790965  (IF 2,2)
  29. DUCA, Gh.; COVALIOV, V.; COVALIOVA, O. Production, Structure and Photocatalytic Properties of Nanotubular TiO2. Environmental Engineering and Management Journal, 2020, 19(1), pp. 65-73. http://www.eemj.eu/index.php/EEMJ/issue/view/205  (IF 0,8)
  30. CHMIELOWSKA-BAK, J.; HOLUBEK, R.; FRONTASYEVA, M.; ZINICOVSCAIA, I.: ISIDOGRU, S. Tough Sprouting – Impact of Cadmium on Physiological State and Germination Rate of Soybean Seeds. Acta Societatis Botanicorum, 2020, 89(2), article 8923, 10 p. DOI: https://doi.org/10.5586/asbp.8923 (IF 1,4)
  31. ERHAN, R.V.; BODNARCHUK, V.I.; RADULESCU, A.; ANGHEL, L. Small Angle Neutron Scattering Reveals Dimeric Glucose Oxidase from Aspergillus niger at pH 5.9. Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques, 2020, 14, pp. S5–S10. DOI: https://doi.org/10.1134/S1027451020070125  (IF 0,4)
  32. HOLUBEK, R.; DECKERT, J.; ZINICOVSCAIA, I.; YUSHIN, N.; VERGEL, K. et al. The recovery of soybean plants after short-term cadmium stress. Plants, 2020, 9, 782, 17 p. DOI: https://doi.org/10.3390/plants9060782 (IF 4,8)
  33. HRISTOZOVA, G.; MARINOVA, S.; MOTYKA, O.; SVOZILIK, V.; ZINICOVSCAIA, I. Multivariate assessment of atmospheric deposition studies in Bulgaria based on moss biomonitors: trends between the 2005/6 and 2015/16 surveys. Environmental Science and Pollution Research, 2020, vol.27, pp. 39330-39342. DOI: https://doi.org/10.1007/s11356-020-10005-w  (IF 5,4)
  34. MOTYKA, O.; STRBOVA, K.; ZINICOVSCAIA, I. Chlorophyll content in two medicinal plant species following nano-TiO2 exposure. Bulletin of Environmental Contamination and Toxicology, 2020, 104, pp. 373-379. DOI: https://doi.org/10.1007/s00128-020-02787-z (IF 2,4)
  35. ZINICOVSCAIA, I.; YUSHIN, N.; PANTELICA, A.; DEMCAK, Š.; MITU, A.; APOSTOL, A. Lithium biosorption by Arthrospira (Spirulina) platensis biomass. Ecological Chemistry and Engineering S., 2020, 27(2), pp. 271-280. DOI: https://doi.org/10.2478/eces-2020-0017 (IF 1,7)
  36. DUCA, GH.; BOLOCAN, N. Understanding the chemical reactivity of dihydroxyfumaric acid and its derivatives trough conceptual DFT. In: Revista de Chimie, 2021, 72(4), pp. 162-174. https://doi.org/10.37358/RC.21.4.8465
  37. ДУКА, Г.; БЛОНСКИ, В.; ГЛАДКИ, В.; ТРАВИН, С. Фотохимические превращения  тиолов на примере цистеина и их влияние на формирование редокс-состояния природных вод. В: Экологическая химия. 2021, 30(2); pp. 94–100. https://chemjournals.thesa.ru/eco/a/30_2/p93.pdf 
  38. BOLOCAN, N., DUCA, Gh. DFT study of geometric isomerization and keto–enol tautomerization of dihydroxyfumaric acid. In: STUDIA UBB CHEMIA, LXVI, 4, 2021, pp. 341-353. DOI: https://doi.org/10.24193/subbchem.2021.4.2
  39. ZINICOVSCAIA, I., IVLIEVA, A., PETRITSKAYA, E., ROGATKIN, D., YUSHIN, N., GROZDOV, D., VERGEL, K., MAMULOVÁ-KUTLÁKOVÁ, K. Assessment of TiO2 Nanoparticles Accumulation in Organs and Their Effect on Cognitive Abilities of Mice. In: Physics of Particles and Nuclei Letters. 2021, 3(18), pp. 378-384. DOI: https://doi.org/10.1134/S1547477121030146
  40. DUCA, Gh.; BLONSCHI, V.; GLADCHI, V.; TRAVIN, S. Dynamics of Different Sulfur Forms in Natural waters and Their Influence on the Redox State. American Journal of Physical Chemistry, 2020, 9(3), pp. 52-61. DOI:  https://doi.org/10.11648/j.ajpc.20200903.12
  41. DUCA, Gh.; TRAVIN, S.O. Reactions’ Mechanisms and Applications of Hydrogen Peroxide. American Journal of Physical Chemistry. 2020, 9(2), pp. 36-44. https://doi.org/10.11648/j.ajpc.20200902.13
  42. ZINICOVSCAIA, I.; STURZA R.; DULIU, O.G.; GROZDOV, D.; GUNDORINA, S.; GHENDOV-MOSANU, A.; DUCA, Gh. Determination of major and minor elements in Moldavan fruits by neutron activation analysis and assessment of their provenance. International Journal of Environmental Research and Public Health, 2020, 17(9), 7112, 19 p. DOI: https://doi.org/10.3390/ijerph17197112
  43. КОВАЛЕВА, О., КОВАЛЕВ, В. Получение биоводорода для отопительных систем за счет биологически активных веществ. Vestnik Vologda State University (Science Journal, Vologda), 2020, 2(8), pp. 62-66. https://vestnik.vogu35.ru/docs/2020/tekhnich/2/62.pdf
  44. ДУКА, Г.; ЗИНЬКОВСКАЯ, И.; ГРОЗДОВ, Д. Биосорбция ионов металлов микроводорослью Spirulina plantensis. Экологическая химия, 2020, 29(1); pp. 28–35.


Articles in national journals

  1. DUCA, GH.; BALAN, I.; GORINCHOY, N. Savantul afirmat pe două continente. Academicianul Isaak BERSUKER la 95 de ani. Akademos, 2023, 1(68) (categoria B) http://akademos.asm.md/files/171-172_0.pdf
  2. COVALIOV, V., UNGUREANU, D., DUCA, Gh., COVALIOVA, O., ROMANCIUC, L. A New Concept Regarding the Selection of Sewerage Systems and Natural Treatment of Municipal Wastewaters: Case Study of Moldova. Journal of Engineering Science (UTM), 2023, XXX (1), pp. 129-138. DOI: https://doi.org/10.52326/jes.utm.2023.30(1).11 (Categoria B+, Open Science).
  3. БЛОНСКИ, В., ГЛАДКИЙ, В., ЧИСТЯКОВ, М. Влияние химического состава поверхностных вод на интенсивность фотолиза глутатиона. In: Studia Universitatis Moldaviae (Seria Ştiinţe Reale şi ale Naturii). 2022, nr. 6(156), pp. 182-189. DOI: 10.5281/zenodo.7445875
  4. DUCA, Gh.; COVALIOVA, O.; COVACI, E.; ROMANCIUC, L.; TAȘCA, C. Effect of bioactive additives on biomass fermentation from agro-industrial sector. In: Journal of Engineering Science, 2022, 29(3), pp. 176-188. https://doi.org/10.52326/jes.utm.2022.29(3).15 (Categoria B+)
  5. ЯЛТЫЧЕНКО, О.В.; КАНАРОВСКИЙ, Е.Ю., Учёт синергии витаминов E и C в кинетической модели перекисного окисления липидов. B: Журнал «Электронная обработка материалов», 2022, 58(5), pp. 44-50. DOI:  https://doi.org/10.52577/eom.2022.58.5.44
  6. КОВАЛЕВА, О., КОВАЛЕВ, В. Фотокаталитическое обеззараживание патогенных бактериальных систем в водной среде.  In: Intellectus, 2021, 3-4, pp. 80-87. (Categoria C)   http://www.agepi.md/ro/intellectus
  7. MOCANU, L., GONŢA, M., MATVEEVICI, V., DUCA, Gh., PORUBIN-SCHIMBĂTOR, V. Îndepărtarea cefalexinei din soluții apoase utilizând procesul fotocatalitic Fenton. In: Revista de Ştiinţă, Inovare, Cultură şi Artă „Akademos”, 2021, 2(61), pp. 53-60. DOI: https://doi.org/10.52673/18570461.21.2-61.03 (Categoria C)
  8. STURZA, R., DRUŢĂ, R., COVACI, E., DUCA, Gh., SUBOTIN I. Mecanisms of sunflower oil transforming into forces thermal oxidation processes. In: Journal of Engineering Science, XXVII, 3, 2020. DOI: https://doi.org/10.5281/zenodo.3949716 (Categoria B+)
  9. STURZA, R.; DRUȚĂ, R.; COVACI, E.; DUCA, Gh.; SUBOTIN, I. Mechanisms of sunflower oil transforming into forced thermal oxidation process. Journal of Engineering Science, 2020, XXVII (3), pp. 239-251. DOI: http://doi.org/10.5281/zenodo.3949716
  10. VICOL, C., DUCA, GH. Influența acidului tartric asupra procesului de anihilare a radicalilor liberide către acidul ascorbic. Akademos, 2020, 1(56), pp. 39 - 43 (Cat.B) http://doi.org/10.5281/zenodo.4094736
  11. КОВАЛЕВ, В., КОВАЛЕВА, О., НЕННО, В. Повышение энергетических характеристик биогаза: Часть 2. Технологические аспекты управления процессом метаногенеза. Intellectus. 2020, Nr.1-2, pp. 177-187. http://www.agepi.gov.md/ro/intellectus/intellectus-1-2-2020
  12. КОВАЛЕВ, В., КОВАЛЕВА, О. Биохимическая трансформация сероводорода и пути дезодорирования сточных вод.  In: Studia Universitatis Moldaviae, Ser. “Şt. reale şi ale naturii”. 2020, Nr.6 (136), pp. 177-185. Categoria B. DOI: http://doi.org./10.5281/zenodo.4431823 
  13. BUNDUCHI, E., GLADCHI, V. Evaluarea, în baza produselor de activare ale oxigenului, a poluării şi a autopurificării prin procese redox a unor ape naturale. Studia Universitatis Moldaviae, Seria “Științe reale și ale naturii”, 2020, nr.1(131), p.48-52. DOI: http://doi.org/10.5281/zenodo.3953838.
  14. MOCANU, L., GONTA M., MATVEEVICI, V. Optimizarea procesului de oxidare catalitică a amoxicilinei  în soluții apoase. În: Studia Universitatis, Seria “Științe reale și ale naturii”, 2020, nr. 1 (131), pp. 38-47. ISSN 1814-3237, ISSNe 1857-498X.


Patents

  1. COVALIOVA, Olga; COVALIOV, Victor; UNGUREANU, Dumitru; COPTIUG, Eduard. Instalaţie de decontaminare a toxinelor organice şi bacteriilor din mediul acvatic. Brevet MD Nr. 4738.  http://www.db.agepi.md/inventions/     
  2. COVALIOV, Victor; COVALIOVA, Olga; UNGUREANU, Dumitru Instalaţie de obţinere a biogazului. Brevet MD Nr. 4744. 2021-09-30. http://www.db.agepi.md/inventions/   
  3. COVALIOV, Victor; SACHEVICI, Veaceslav; COVALIOVA, Olga; RUSNAC, Arcadie; POLESCHUK, Gheorgy. Procedeu de deodorizare a deşeurilor organice. Brevet MD nr.4750, 2021-10-31. http://www.db.agepi.md/inventions/    
  4. COVALIOV, Victor, COVALIOVA, Olga, NENNO, Vladimir, UNGUREANU, Dumitru, CIOBANU, Natalia, Dispozitiv pentru arderea fără fum a combustibilului gazos cu conţinut redus de metan. Brevet MD Nr. 4766. 2021-08-31. http://www.db.agepi.md/inventions/
  5. COVALIOV, Victor, COVALIOVA, Olga, NENNO, Vladimir, DUCA, Gheorghe, Procedeu de obţinere a biogazului. Brevet MD Nr. 4767. 2021-09-30. http://www.db.agepi.md/inventions/


Lucrări științifico-metodice și didactice

  1. GLADCHI, V. Tehnologie chimică organică: Note de curs. Chișinău, CEP USM, 2023, 157 p. ISBN 978-9975-62-545-6.