Evaluation of E. coli biofilm as a protective barrier against microbiologically influenced deterioration of concrete (MICD) under mesophilic temperatures

Soleimani, Sahar; Örmeci, Banu; Isgor, O. Burkan

doi:10.2166/wst.2013.252

Cited by 6 publications

(3 citation statements)

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“…One of the challenges in propagating beneficial biofilms is their viability on the surface. Microorganisms are susceptible to changing environment; therefore, the efficient stimulants should be sought in order to achieve a successful (and beneficial) colonisation (Soleimani et al 2013;Huang et al 2019). This research was executed with reference strains that are frequently applied as models in microbiological studies (Sikora et al 2018).…”

Section: Gained Results In Scope Of Applied Microbiology and Construcmentioning

confidence: 99%

The effects of calcium–silicate–hydrate (C–S–H) seeds on reference microorganisms

et al. 2020

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Building materials are constantly improved with various additives and admixtures in order to achieve goals ranging from obtaining increased durability or antimicrobial activity up to reducing the carbon footprint left by the cement production. Since nanomaterials were proposed for cement products, many studies explored the possibilities for their incorporation. One of the novel trends in studying these materials is evaluating their impact on living organisms, with the focus not only on toxicology but also on the application potential. Therefore, in this study, we investigated the effects of three types of calciumsilicate-hydrate (C-S-H) seeds on reference microorganisms in the scope of their basic physiology and primary metabolism. Shape, size and elemental composition of C-S-H seeds were also evaluated. The tests on the reference microorganisms have shown that the reaction to these nanomaterials can be specific and depends on the strain as well as the type of used nanomaterial. Furthermore, the presence of C-S-H seeds in the growth environment led to metabolic stimulation that resulted in faster growth, higher biochemical activity, and increased biofilm formation. Based on our findings, we conclude that even though C-S-H seeds have antimicrobial potential, they can be potentially used to promote the growth of selected microbial strains. This phenomenon could be further investigated towards the formation of beneficial biofilms on building materials.

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Section: Gained Results In Scope Of Applied Microbiology and Construcmentioning

confidence: 99%

The effects of calcium–silicate–hydrate (C–S–H) seeds on reference microorganisms

et al. 2020

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“…Apart from remediating heavy metals (usually accompanied by formation of NPs), biofilms can be applied on concrete surfaces. While biofilms have been more widely applied to protect the metal surfaces from corrosion (Zuo, 2007), several applications to concrete have been reported (Soleimani et al, 2013a;Soleimani et al, 2013b;Soleimani et al, 2013c). An E. coli DH5α biofilm can successfully cover mortar samples, continue to grow (almost doubling the thickness) despite application of sulfuric acid down to pH of 3, and reduce leaching of Ca 2+ by 23-47% compared to samples without the biofilms (Soleimani et al, 2013a).…”

Section: Surface Treatment Via Formation Of Beneficial Biofilmsmentioning

confidence: 99%

Nanoscale Construction Biotechnology for Cementitious Materials: A Prospectus

Chen

2021

Front. Mater.

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Climate change, infrastructure resilience, and resource recovery from waste have emerged as grand challenges for civil engineers in the 21st century. Wicked problems associated with these global grand challenges are necessitating innovative, multidisciplinary thinking and multiscale, integrated solutions that are spurring the development of a new field-construction biotechnology. While the field of construction biotechnology spans multiple scales, this review highlights the promise and potential of nanoscale (<100 nm) biotechnological applications to civil engineering. While the field of nanotechnology has revolutionized other industries, applications of nanotechnology in civil engineering have remained limited due to techno-economic and environmental barriers. Biological production of functional nanoparticles (NPs), however, offers new economical routes to develop resilient, high-performance cementitious materials while simultaneously addressing critical needs related to wastewater treatment and resource recovery. Recent research has elucidated that biological production of NPs exhibit preferred-and genetically controllable-morphological characteristics that could tailor the structure-property relationships of civil engineering materials. The natural ability of microorganisms to immobilize heavy metals (eg, Hg, Cr, Zn, Cd, Cu, Ag)-and the programmability of microorganisms to do so via synthetic biology-as well as their ability to sequester greenhouse gases and neutralize volatile organic compounds affords civil engineers a grand opportunity to treat wastewater, recover rare earth elements, and minimize air pollution. In addition to featuring state-of-the-art research in the field, this review summarizes the opportunities and challenges of nanoscale biotechnology and proposes a roadmap of research for civil engineers of the 21st century.

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“…Various strategies have been employed to reduce the risk of damage caused by concrete bio-corrosion, such as improving concrete design features, controlling the sewer environment, and applying chemicals or antimicrobial coatings [8][9][10][11]. Compared to OPC, using alkaliactivated materials (AAMs) can enhance the acid resistance due to the lower amounts of Ca in the reaction products, which prevents the decalci cation and dealumination of the gel phases [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Recycling of incinerated sewage sludge ash and waste glass powder in alkali-activated slag/glass powders for sewer rehabilitation

Sun,

Ali,

Cai

et al. 2024

Preprint

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A new era has dawned in the manufacturing of cement-free binders with appropriate mechanical strengths and durability to combat CO2 emissions. However, the assessment of their performance in extreme conditions is ongoing. Here, we attempted to use incinerated sewage sludge ash (ISSA), a waste product of sewage sludge incineration that contains limited amounts of heavy metals, along with waste glass powder (GP) and ground granulated blast furnace slag (GGBS), as precursors to produce cement-free binders through alkali-activation. The alkali-activated materials (AAMs) were then subjected to an intensified sewage corrosion test for 6 months. The aim was to utilize the heavy metals in the ISSA as biocides to resist the biogenic acid attack on the AAMs. The experimental results indicated that superior performance was achieved by using a ternary binder prepared with ISSA, GP, and GGBS under biogenic acid simulation. Such enhanced durability can be attributed to the low Ca content in the resulting alkali-activated gels, which also reduced the grain size of gypsum formed and prevented expansion deterioration. Furthermore, the slow release of heavy metals from the AAMs prepared with the ISSA, evidenced by the leaching test results, was able to inhibit microbial growth.

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Evaluation of E. coli biofilm as a protective barrier against microbiologically influenced deterioration of concrete (MICD) under mesophilic temperatures

Cited by 6 publications

References 0 publications

The effects of calcium–silicate–hydrate (C–S–H) seeds on reference microorganisms

The effects of calcium–silicate–hydrate (C–S–H) seeds on reference microorganisms

Nanoscale Construction Biotechnology for Cementitious Materials: A Prospectus

Recycling of incinerated sewage sludge ash and waste glass powder in alkali-activated slag/glass powders for sewer rehabilitation

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