Applying the first microcapsule-based self-healing microbial-induced calcium carbonate materials to prevent the migration of Pb ions

Xue, Zhong-Fei; Cheng, Wen-Chieh; Wang, Lin; Qin, Peng; Xie, Yi-Xin; Hu, Wenle

doi:10.1016/j.envres.2023.117423

Cited by 15 publications

(4 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our study, we only assessed the concentrations of Pb and Cd in the blood and liver of treated and untreated animals as well-known elements for their toxicity [42,82]. Until today, these two elements have been the subject of many studies, in which scientists are increasingly discovering their innumerable harmful effects as well as innovative bio-inspired technologies for their remediation [30,53,55]. Obviously, our choice does not ex- In our study, we only assessed the concentrations of Pb and Cd in the blood and liver of treated and untreated animals as well-known elements for their toxicity [42,82].…”

Section: Heavy Metal Concentration In Blood and Liver Tissuementioning

confidence: 99%

“…In another study, the authors ensured the immobilization of Pb to prevent its migration, in a harsh environment, from Pbcontaminated water bodies and soils, by means of self-healing microbial-induced calcium carbonate (MICC) materials [29]. So far, studies relating to this new bio-inspired technology have been deepened by the application of the first microcapsule-based self-healing microbial-induced calcium carbonate materials to avoid the migration of Pb ions [30].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of Liver Toxicity in Wistar Rats after Chronic Exposure to Phosphate-Processing Wastewaters from Gafsa-Metlaoui Laundry in Tunisia

Brahmi,

Nasri,

Moula

et al. 2024

Water

View full text Add to dashboard Cite

In the mining basin of the Gafsa region in southwestern Tunisia, environmental exposure to randomly discharged phosphate-processing wastewaters (PPWW) presents a serious threat to health and the surrounding ecosystems. Thus, the contaminated areas are in continuous deterioration over time. There is a paucity of information on the deleterious effects of this kind of effluent. In the current work, the PPWW characterization showed the presence of high contents of Pb (0.90 ± 0.02 mg/L), Cd (0.35 ± 0.27 mg/L), Cr (0.43 ± 0.1 mg/L) and Fe (215.1 ± 2.41 mg/L), exceeding the permissible limits. To assess the chronic toxicity of the effluent in mammalians, two doses of PPWW (50% and 100%) were administered by gavage to Wistar rats for 28 consecutive days. The results revealed that the two PPWW concentrations significantly increased the plasma biochemical markers (bilirubin, alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), and lactate dehydrogenase (LDH)), compared to untreated animals. Moreover, PPWW treatment severely altered the lipid profile by increasing the contents of triglycerides, total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-cholesterol) by 143%, 114%, and 91%, respectively, and significantly reduced the high-density lipoprotein cholesterol (HDL-cholesterol) level by 46%, compared to the control animals. In addition to the significant decrease in activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) in the liver of intoxicated rats, the malondialdehyde (MDA) level was remarkably altered. All of these were associated with deep histopathological damages, materialized by dilatation of sinusoids, congestion of the centrilobular vein, and inflammatory cell infiltration. These disturbances were accompanied by metal detection in the liver and blood. Additionally, DNA fragmentation detected in hepatic tissues highlighted the genotoxic effects of PPWW. All of the aforementioned effects occurred in a PPWW dose-dependent manner. These findings evidenced, for the first time, the in vivo-deleterious impacts of this type of effluent on mammalians inhabiting the mining basin area and therefore showed the real threats to which humans, as consumers, could be exposed. Accordingly, there is a dire need to pay special attention to PPWW before being discharged into environmental ecosystems without any prior treatments.

show abstract

Section: Heavy Metal Concentration In Blood and Liver Tissuementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Liver Toxicity in Wistar Rats after Chronic Exposure to Phosphate-Processing Wastewaters from Gafsa-Metlaoui Laundry in Tunisia

Brahmi,

Nasri,

Moula

et al. 2024

Water

View full text Add to dashboard Cite

show abstract

“…In severe instances, seizures, coma, or death may take place ( Costa de Almeida et al, 2007 ; Chen et al, 2021 ). To tackle the said issue, many remediation technologies applied for Pb immobilization have been developed ( Bai et al, 2022 ; Xie et al, 2022 ; Xue et al, 2022 ; Xue et al, 2023 ). However, they are often criticized due to poor performance and are accompanied by a high risk of secondary contamination ( Yang et al, 2020 ; Meng et al, 2022 ; Hu et al, 2023a ; Hu et al, 2023b ; Wang et al, 2023 ; Bai et al, 2024 ; Xue et al, 2024b ).…”

Section: Introductionmentioning

confidence: 99%

Nano-hydroxyapatite-assisted enzyme-induced carbonate precipitation enhances Pb-contaminated aqueous solution and loess remediation

Bian,

Cheng,

Xie

et al. 2024

Front. Bioeng. Biotechnol.

Self Cite

View full text Add to dashboard Cite

Intensive agricultural activities could cause lead (Pb) bioaccumulation, threatening human health. Although the enzyme-induced carbonate precipitation (EICP) technology has been applied to tackle the aforesaid problem, the urease may denature or even lose its activity when subjected to a significant Pb2+ toxicity effect. To this end, the nano-hydroxyapatite (nHAP)-assisted EICP was proposed to reduce the mobility of Pb2+. Results indicated that a below 30% immobilization efficiency at 60 mM Pb2+ was attained under EICP. nHAP adsorbed the majority of Pb2+, preventing Pb2+ attachment to urease. Further, hydroxylphosphohedyphane or hydroxylpyromorphite was formed at 60 mM Pb2+, followed by the formation of cerussite, allowing hydroxylphosphohedyphane or hydroxylpyromorphite to be wrapped by cerussite. By contrast, carbonate-bearing hydroxylpyromorphite of higher stability (Pb10(PO4)6CO3) was developed at 20 mM Pb2+ as CO32− substituted the hydroxyl group in hydroxylpyromorphite. Moreover, nHAP helped EICP to form nucleated minerals. As a result, the EICP-nHAP technology raised the immobilization efficiency at 60 mM Pb2+ up to 70%. The findings highlight the potential of applying the EICP-nHAP technology to Pb-containing water bodies remediation.

show abstract

“…Some researchers have also applied enzymatic precipitation of carbonates and bio-inspired heavy immobilization for supplementing the elemental sources to the microbes for calcite precipitation. [19][20][21][22] The most prevalent ureolytic bacteria are Bacillus sphaericus, megaterium and pasteurii, which can hydrolyse the urea into calcite carbonate through metabolic processes. [23][24][25][26] Ammonium can also result from the process of urea hydrolysis, a situation that holds the potential to harm the environment and negatively impact human health.…”

Section: Introductionmentioning

confidence: 99%

Effects of bacterial consortium enhanced recycled coarse aggregates on self‐healing concrete immobilized with Bacillus megaterium MTCC 1684 and Bacillus subtilis NCIM 2193

Bakr,

Hussain,

Singh

et al. 2023

Structural Concrete

View full text Add to dashboard Cite

The strength and durability properties of the recycled aggregate concrete (RAC) have been affected by the cracks and the weak interfacial transition zone (ITZ) of the recycled coarse aggregates (RCA). However, the mechanical and physical features of RCA can be improved by microbially induced calcite precipitation (MICP). Therefore, immobilization techniques were used to protect and maintain the high efficiency of Bacillus bacteria for the formation and precipitation of calcium carbonates in self‐healing concrete over a period of time. The objective of the present study was to show the viability of the immobilized bacterial consortium‐enhanced RCA to form self‐healing cracks. Further, the self‐healing capability of enhanced RCA was investigated along with two other immobilization methods, that is, RCA and hydrated lime and brick powder (HBr)‐immobilized bacteria. The experimental results show that the increase in the bio‐deposition time improved the physical and mechanical properties of the RCA. Further, subsequently 56 days of the healing incubation period, the immobilized consortium‐enhanced RCA concrete specimens completely healed the cracks of width 0.58 mm. However, the equivalent cracks of width 0.56 mm were also recovered by the HBr immobilized bacterial cultures. Furthermore, the field emission scanning electron microscope (FESEM), energy dispersive spectroscopy (EDS) and X‐ray diffraction (XRD) analysis revealed that the existence of precipitation at the crack surface was calcium carbonate with a regular cubic‐shaped and lamellar layer morphology. The outcomes of the current study show that consortium‐enhanced RCA has promising potential to develop self‐healing concrete with self‐repaired and improved durability properties in the concrete construction field.

show abstract

Applying the first microcapsule-based self-healing microbial-induced calcium carbonate materials to prevent the migration of Pb ions

Cited by 15 publications

References 58 publications

Assessment of Liver Toxicity in Wistar Rats after Chronic Exposure to Phosphate-Processing Wastewaters from Gafsa-Metlaoui Laundry in Tunisia

Assessment of Liver Toxicity in Wistar Rats after Chronic Exposure to Phosphate-Processing Wastewaters from Gafsa-Metlaoui Laundry in Tunisia

Nano-hydroxyapatite-assisted enzyme-induced carbonate precipitation enhances Pb-contaminated aqueous solution and loess remediation

Effects of bacterial consortium enhanced recycled coarse aggregates on self‐healing concrete immobilized with Bacillus megaterium MTCC 1684 and Bacillus subtilis NCIM 2193

Contact Info

Product

Resources

About