Encapsulation of microorganisms for bioremediation: Techniques and carriers

Valdivia-Rivera, Sergio; Ayora‐Talavera, Teresa; Lizardi-Jiménez, Manuel Alejandro; García-Cruz, Ulises; Cuevas-Bernardino, Juan Carlos; Pacheco, Neith

doi:10.1007/s11157-021-09577-x

Cited by 31 publications

(9 citation statements)

References 145 publications

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“…This adaptation could be achieved by selecting the most efficient strains [244][245][246], entrapment [247,248] or encapsulation [249][250][251], genetic modification or engineering of microorganisms by spontaneous or induced mutation, gene cloning, the removal of cell walls, or the insertion of genes from other species [252]. It should be emphasised that both dead and living bacteria can be used to remove pollutants.…”

Section: Biodegradation/bioremediationmentioning

confidence: 99%

A Critical Review of the Modelling Tools for the Reactive Transport of Organic Contaminants

Samborska-Goik,

Pogrzeba

2024

Applied Sciences

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The pollution of groundwater and soil by hydrocarbons is a significant and growing global problem. Efforts to mitigate and minimise pollution risks are often based on modelling. Modelling-based solutions for prediction and control play a critical role in preserving dwindling water resources and facilitating remediation. The objectives of this article are to: (i) to provide a concise overview of the mechanisms that influence the migration of hydrocarbons in groundwater and to improve the understanding of the processes that affect contamination levels, (ii) to compile the most commonly used models to simulate the migration and fate of hydrocarbons in the subsurface; and (iii) to evaluate these solutions in terms of their functionality, limitations, and requirements. The aim of this article is to enable potential users to make an informed decision regarding the modelling approaches (deterministic, stochastic, and hybrid) and to match their expectations with the characteristics of the models. The review of 11 1D screening models, 18 deterministic models, 7 stochastic tools, and machine learning experiments aimed at modelling hydrocarbon migration in the subsurface should provide a solid basis for understanding the capabilities of each method and their potential applications.

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Section: Biodegradation/bioremediationmentioning

confidence: 99%

A Critical Review of the Modelling Tools for the Reactive Transport of Organic Contaminants

Samborska-Goik,

Pogrzeba

2024

Applied Sciences

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“…Spray-drying, extrusion, freeze drying, electrospinning, coacervation, liposomes, ionic gelation, molecular inclusion (Sarma, Pakshirajan and Mahanty, 2011;San Keskin et al, 2018;Bamidele and Emmambux, 2020;Guo et al, 2020;Valdivia-Rivera et al, 2021) Drug delivery (Colon-targeted antitumour drugs-acid tolerant pectin polymers to release active drugs at site) Hydrogels, pellets, microspheres, microsponges Khotimchenko, (2020) Enhanced construction materials (Concretestrengthening enhancements)…”

Section: Encapsulation Application Encapsulation Technique Referencesmentioning

confidence: 99%

“…• Bioactive oligosaccharides improve resistance to pathogens and overall antimicrobial properties of the capsule (Estevinho et al, 2013;Berger et al, 2014;Muxika et al, 2017;Nah and Jeong, 2021) Humic acid • Enhance nutrient uptake by encapsulated cells • Bio-stimulants • Improved encapsulation rates • Improved linkage between microorganisms and exopolysaccharides (Nesterenko et al, 2013;Elzoghby, Elgohary and Kamel, 2015;Colla et al, 2017;Casadesús, Polo and Munné-Bosch, 2019;Vejan et al, 2019;Valdivia-Rivera et al, 2021) Frontiers in Built Environment frontiersin.org…”

Section: Additive Encapsulation Advantages Referencesmentioning

confidence: 99%

Novel biodesign enhancements to at-risk traditional building materials

Booth

Jankovic²

2022

Front. Built Environ.

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Extreme weather conditions increase the frequency of regular maintenance on heritage buildings and cause erosion of traditional materials. Developments in bio-enhanced self-repair materials provide an opportunity to improve building performance and reduce the frequency of costly maintenance schedules. The microbial sequestration of carbon by bacteria, encapsulated and layered into several limewash coats, facilitates capturing atmospheric carbon and reduces carbon-generating maintenance regimes. The use of hydrogels, alginates and biofilm derived biopolymers as novel bacterial encapsulation and nutrient delivery vehicles is discussed and the opportunity to develop self-healing sacrificial limewash as a future research project. Microbial enhanced carbon-fixing limewash may also offer a broader application to improve the performance of sustainable materials such as hemp-lime bio-composites as a fast-forward projection of problems and solutions with these materials in the future.

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“…Microbial encapsulation is a versatile environmental biotechnology with applications ranging from nutrient removal (Wang et al, 2021 ) and resource recovery (Chen et al, 2021 ) from wastewater to bioremediation of contaminants (Valdivia‐Rivera et al, 2021 ). The permeable matrices used as encapsulants not only selectively retain microorganisms but also protect them against potential inhibitors in the external environment (Zhu et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Quantification of depth‐dependent microbial growth in encapsulated systems

Wang,

Ishii,

Novak

2023

Microbial Biotechnology

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Encapsulated systems have been widely used in environmental applications to selectively retain and protect microorganisms. The permeable matrix used for encapsulation, however, limits the accessibility of existing analytical methods to study the behaviour of the encapsulated microorganisms. Here, we present a novel method that overcomes these limitations and enables direct observation and enumeration of encapsulated microbial colonies over a range of spatial and temporal scales. The method involves embedding, cross‐sectioning, and analysing the system via fluorescence in situ hybridization and retains the structure of encapsulants and the morphology of encapsulated colonies. The major novelty of this method lies in its ability to distinguish between, and subsequently analyse, multiple microorganisms within a single encapsulation matrix across depth. Our results demonstrated the applicability and repeatability of this method with alginate‐encapsulated pure (Nitrosomonas europaea) and enrichment cultures (anammox enrichment). The use of this method can potentially reveal interactions between encapsulated microorganisms and their surrounding matrix, as well as quantitatively validate predictions from mathematical models, thereby advancing our understanding of microbial ecology in encapsulated or even biofilm systems and facilitating the optimization of these systems.

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Encapsulation of microorganisms for bioremediation: Techniques and carriers

Cited by 31 publications

References 145 publications

A Critical Review of the Modelling Tools for the Reactive Transport of Organic Contaminants

A Critical Review of the Modelling Tools for the Reactive Transport of Organic Contaminants

Novel biodesign enhancements to at-risk traditional building materials

Quantification of depth‐dependent microbial growth in encapsulated systems

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