OOIR: Observatory of International Research

Papers

(The H4-Index of Reviews in Environmental Science and Bio-Technology is 34. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-06-01 to 2026-06-01.)

Article	Citations
Photoelectrotrophy: a novel mode of microbial metabolism and its biogeochemical effects	396
Beyond landfills: transforming biodegradable waste into climate solutions and valuable resources	124
Phytoremediation for the indoor environment: a state-of-the-art review	114
Grape pomace, an undervalued by-product: industrial reutilization within a circular economy vision	105
Retention of soil organic matter by occlusion within soil minerals	92
Biodegradation of per- and polyfluoroalkyl substances: microbes, enzymes and their interactions	87
Selective protein-based separation of critical elements from mine wastes	71
A critical review of experimental and CFD techniques to characterize the mixing performance of anaerobic digesters for biogas production	68
Prospective bioconversion of CO2 and CO into fine chemicals via halophilic purple phototrophic bacteria	66
Chemical oxidation as an alternative for municipal wastewater secondary treatment: a review	65
Biological perspectives in geotechnics: theoretical developments	63
Physiological response and metabolic regulation of pollutant stress in Suaeda salsa: a review	59
Hybrid ion exchange and biological processes for water and wastewater treatment: a comprehensive review of process applications and mathematical modeling	59
The role of the sewer system in estimating urban emissions of chemicals of emerging concern	55
The uptake and in-vivo migration of Hg by plants: a critical review	54
Biogeochemical cycle and isotope fractionation of copper in plant–soil systems: a review	51
Coupling of algae, algal organic matter, and nutrient biogeochemical cycling in eutrophic waters	50
Nanocellulose from agro-waste: a comprehensive review of extraction methods and applications	49
Biogenesis of thiosulfate in microorganisms and its applications for sustainable metal extraction	48
Biochar: a potential and green adsorbent for antibiotics removal from aqueous solution	45
Dissimilatory nitrate reduction to ammonium has a competitive advantage over denitrification under nitrate-limited conditions	43
Biotechnological advances in Bacillus thuringiensis and its toxins: Recent updates	42
Non-steroidal anti-inflammatory drugs as emerging water and food contaminants: review	42
Chemical composition and industrial applications of Maritime pine (Pinus pinaster Ait.) bark and other non-wood parts	41
Filamentous nitrogen-fixing cyanobacteria: contributing to filling nitrogen and water gaps in a context of climate change	40

Passive flux samplers for estimating airborne pollutants emissions: a comprehensive review	40
Microbial fuel cell mediated azo dye degradation: a comprehensive review on anode, cathode, membrane interfaces and scale-up potential	40
Correction to: Non-steroidal anti-inflammatory drugs as emerging water and food contaminants: review	39
Biocontrol and beyond: the versatile roles of Streptomyces in agriculture	38
Biosurfactants and bioemulsifiers for soil remediation as a green solution from waste	37
Elucidating electron transfer pathways in N2OR catalysis for mitigation of N2O emissions: a comprehensive review	37
Current progress on the biodegradation of synthetic plastics: from fundamentals to biotechnological applications	36
Functional and molecular approaches for studying and controlling microbial communities in anaerobic digestion of organic waste: a review	36
Spent coffee ground: transformation from environmental burden into valuable bioactive metabolites	34
Harnessing economical biopolymer extrusion: the Bacillus clade as endotoxin-free platforms for next-generation bioprocesses	34