Corvini, Philippe
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Insights into the applications of 3D bioprinting for bioremediation technologies
2021, Ke, Zhuang, Obamwonyi, Osagie, Kolvenbach, Boris, Ji, Rong, Liu, Shuangjiang, Jiang, Jiandong, Corvini, Philippe
A plethora of organic pollutants such as pesticides, polycyclic and halogenated aromatic hydrocarbons, and emerging pollutants, such as flame retardants, is continuously being released into the environment. This poses a huge threat to the society in terms of environmental pollution, agricultural product quality, and general safety. Therefore, effective removal of organic pollutants from the environment has become an important challenge to be addressed. As a consequence of the recent and rapid developments in additive manufacturing, 3D bioprinting technology is playing an important role in the pharmaceutical industry. At the same time, an increasing number of microorganisms suitable for the production of biomaterials with complex structures and functions using 3D bioprinting technology, have been identified. This article briefly discusses the principles, advantages, and disadvantages of different 3D bioprinting technologies for pollutant removal. Furthermore, the feasibility and challenges of developing bioremediation technologies based on 3D bioprinting have also been discussed
Biomineralisierung von Selen: Von Abwasserbehandlung zu Ressourcen-Wiedergewinnung
2015, Lenz, Markus, Kolvenbach, Boris, Corvini, Philippe
New insights into biological sulfonamide degradation
2015, Kolvenbach, Boris, Ricken, Benjamin, Fellmann, Oliver, Kohler, Hans-Peter E., Schäffer, Andreas, Corvini, Philippe
Ipso-substitution--the hidden gate to xenobiotic degradation pathways
2015, Ricken, Benjamin, Kolvenbach, Boris, Corvini, Philippe
Biodegradation of sulfamethoxazole by a bacterial consortium of Achromobacter denitrificans PR1 and Leucobacter sp. GP
2018-12, Reis, Ana C., Cvancarova Småstuen, M., Liu, Ying, Lenz, Markus, Hettich, Timm, Kolvenbach, Boris, Corvini, Philippe, Nunes, Olga C.
In the last decade, biological degradation and mineralization of antibiotics have been increasingly reported feats of environmental bacteria. The most extensively described example is that of sulfonamides that can be degraded by several members of Actinobacteria and Proteobacteria. Previously, we reported sulfamethoxazole (SMX) degradation and partial mineralization by Achromobacter denitrificans strain PR1, isolated from activated sludge. However, further studies revealed an apparent instability of this metabolic trait in this strain. Here, we investigated this instability and describe the finding of a low-abundance and slow-growing actinobacterium, thriving only in co-culture with strain PR1. This organism, named GP, shared highest 16S rRNA gene sequence similarity (94.6–96.9%) with the type strains of validly described species of the genus Leucobacter. This microbial consortium was found to harbor a homolog to the sulfonamide monooxygenase gene (sadA) also found in other sulfonamide-degrading bacteria. This gene is overexpressed in the presence of the antibiotic, and evidence suggests that it codes for a group D flavin monooxygenase responsible for the ipso-hydroxylation of SMX. Additional side reactions were also detected comprising an NIH shift and a Baeyer–Villiger rearrangement, which indicate an inefficient biological transformation of these antibiotics in the environment. This work contributes to further our knowledge in the degradation of this ubiquitous micropollutant by environmental bacteria.
Elucidating the genetic basis for sulfonamide degradation in isolates with diverse phylogenetic background
2015, Kolvenbach, Boris, Ricken, Benjamin, Corvini, Philippe, Reis, Ana C., Nunes, Olga C., Manaia, Célia M., Strnad, Hynek, Vlcek, Cestmir
Evaluating the potential of bacterial biodegradation of sulfonamides to improve wastewater processing
2015, Kolvenbach, Boris, Ricken, Benjamin, Corvini, Philippe, Reis, Patricia J. M., Reis, Ana C., Manaia, Célia M., Nunes, Olga C.
Arsenic Mobilization from Historically Contaminated Mining Soils in a Continuously Operated Bioreactor: Implications for Risk Assessment
2016, Rajpert, Liwia, Kolvenbach, Boris, Ammann, Erik, Hockmann, Kerstin, Nachtegaal, Maarten, Eiche, Elisabeth, Schäffer, Andreas, Corvini, Philippe, Sklodowska, Aleksandra, Lenz, Markus
Concentrations of soil arsenic (As) in the vicinity of the former Złoty Stok gold mine (Lower Silesia, southwest Poland) exceed 1000 μg g–1 in the area, posing an inherent threat to neighboring bodies of water. This study investigated continuous As mobilization under reducing conditions for more than 3 months. In particular, the capacity of autochthonic microflora that live on natural organic matter as the sole carbon/electron source for mobilizing As was assessed. A biphasic mobilization of As was observed. In the first two months, As mobilization was mainly conferred by Mn dissolution despite the prevalence of Fe (0.1 wt % vs 5.4 for Mn and Fe, respectively) as indicated by multiple regression analysis. Thereafter, the sudden increase in aqueous As[III] (up to 2400 μg L–1) was attributed to an almost quintupling of the autochthonic dissimilatory As-reducing community (quantitative polymerase chain reaction). The aqueous speciation influenced by microbial activity led to a reduction of solid phase As species (X-ray absorption fine structure spectroscopy) and a change in the elemental composition of As hotspots (micro X-ray fluorescence mapping). The depletion of most natural dissolved organic matter and the fact that an extensive mobilization of As[III] occurred after two months raises concerns about the long-term stability of historically As-contaminated sites.
Insights into the sulfonamide degrading protein complex
2015, Ricken, Benjamin, Bucher, Andreas, Mariossi, Andrea, Fellmann, Oliver, Adaixo, Ricardo, Schäffer, Andreas, Corvini, Philippe, Kolvenbach, Boris, Kohler, Hans-Peter E., Leu, Cedric
Degradation of sulfonamide antibiotics by Microbacterium sp. strain BR1 - elucidating the downstream pathway
2015, Ricken, Benjamin, Fellmann, Oliver, Kohler, Hans-Peter E., Schäffer, Andreas, Corvini, Philippe, Kolvenbach, Boris