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Li Z, Yang C, Cho K. Dittmarite-type magnesium phosphates for highly efficient capture of Cs . JOURNAL OF HAZARDOUS MATERIALS 2023; 453:131385. [PMID: 37043858 DOI: 10.1016/j.jhazmat.2023.131385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/24/2023] [Accepted: 04/06/2023] [Indexed: 06/19/2023]
Abstract
The presence of cesium ions (Cs+) in radioactive wastewater has attracted considerable attention owing to their extreme toxic effects. Thus, there is an urgent need to develop adsorbents for Cs+ with high adsorption capacities (q). While phosphate-based adsorbents have advantages for their disposal, previous adsorbents have shown limited q because of their limited capacity for ion exchange, despite showing high theoretical q values. In this study, two dittmarite-type magnesium phosphates, KMgPO4·H2O (KMP) and NH4MgPO4·H2O (NMP), were synthesized because of their ability to contain readily exchangeable cations in their interlayers. KMP and NMP demonstrated remarkable adsorption capacities for Cs+ (qeKMP = 630 mg g-1 and qeNMP = 711 mg g-1), which were the highest among all reported adsorbents and are ∼84 % of their theoretical values. Their distribution coefficients in waters with high divalent ion concentrations were low, which limits their use for the adsorption of Cs+ from such environments. After adsorption, KMP and NMP were structurally transformed into struvite-type CsMgPO4·6H2O (CsMP), which has two different stacking structures, either cubic or hexagonal, depending on the pH of the solution. The high q values of KMP and NMP enable them to reduce the volume of radioactive waste for disposal.
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Affiliation(s)
- Zeqiu Li
- Department of Environmental Engineering, Pusan National University, 2 Busandaehak-ro, 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea
| | - Chenyang Yang
- Department of Environmental Engineering, Pusan National University, 2 Busandaehak-ro, 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea
| | - Kuk Cho
- Department of Environmental Engineering, Pusan National University, 2 Busandaehak-ro, 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea.
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Mugwili ME, Waanders FB, Masindi V, Fosso-Kankeu E. Effective removal of ammonia from aqueous solution through struvite synthesis and breakpoint chlorination: Insights into the synergistic effects of the hybrid system. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 334:117506. [PMID: 36801679 DOI: 10.1016/j.jenvman.2023.117506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/05/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
The ever-growing contamination of surface water due to various catchment activities poses threats and stress to downstream water treatment entities. Specifically, the presence of ammonia, microbial contaminants, organic matter, and heavy metals has been an issue of paramount concern to water treatment entities since stringent regulatory frameworks require these pollutants to be removed prior to water consumption. Herein, a hybrid approach that integrates struvite crystallization (precipitation) and breakpoint chlorination (stripping) for the removal of ammonia from aqueous solution was evaluated. To fulfil the goals of this study, batch experimental studies were pursued through the adoption of the well-known one-factor-at-a-time (AFAAT) method, specifically the effects of time, concentration/dosage, and mixing speed. The fate of chemical species was underpinned using the state-of-the-art analytical instruments and accredited standard methods. Cryptocrystalline magnesium oxide nanoparticles (MgO-NPs) were used as the magnesium source while the high-test hypochlorite (HTH) was used as the source of chlorine. From the experimental results, the optimum conditions were observed to be, i.e., Stage 1 - struvite synthesis, 110 mg/L of Mg and P dosage (concentration), 150 rpm of mixing speed, 60 min of contact time, and lastly, 120 min of sedimentation while optimum condition for the breakpoint chlorination (Stage 2) were 30 min of mixing and 8:1 Cl2:NH3 weight ratio. Specifically, in Stage 1, i.e., MgO-NPs, the pH increased from 6.7 to ≥9.6, while the turbidity was reduced from 9.1 to ≤1.3 NTU. Mn removal efficacy attained ≥97.70% (reduced from 174 μg/L to 4 μg/L) and Fe attained ≥96.64% (reduced from 11 mg/L to 0.37 mg/L). Elevated pH also led to the deactivation of bacteria. In Stage 2, i.e. breakpoint chlorination, the product water was further polished by eliminating residual ammonia and TPC at 8:1 Cl2-NH3 weight ratio. Interestingly, ammonia was reduced from 6.51 to 2.1 mg/L in Stage 1 (67.74% removal) and then from 2.1 to 0.002 mg/L post breakpoint chlorination (99.96% removal), i.e., stage 2. Overall, synergistic and complementary effects of integrating struvite synthesis and breakpoint chlorination hold great promise for the removal of ammonia from aqueous solutions thus confirming that this technology could potentially be used to curtail the effects of ammonia in the receiving environments and drinking water.
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Affiliation(s)
- Muyahavho Enemiah Mugwili
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa; Magalies Water, Scientific Services, Research & Development Division, Erf 3475, Stoffberg Street, Brits, 0250, South Africa
| | - Frans Boudewijn Waanders
- Water Pollution Monitoring and Remediation Initiatives Research Group, School of Chemical and Minerals Engineering, North-West University, Potchefstroom, 2531, South Africa
| | - Vhahangwele Masindi
- Magalies Water, Scientific Services, Research & Development Division, Erf 3475, Stoffberg Street, Brits, 0250, South Africa; Department of Environmental Sciences, School of Agriculture and Environmental Sciences, University of South Africa (UNISA), P. O. Box 392, Florida, 1710, South Africa.
| | - Elvis Fosso-Kankeu
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science Engineering and Technology (CSET), University of South Africa, Florida Science Campus, South Africa; Department of Mining Engineering, College of Science Engineering and Technology, University of South Africa, Florida Science Campus, South Africa
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Prywer J, Torzewska A, Cichomski M, Michałowski PP. Insights into the physical and chemical properties of struvite crystal surfaces in terms of the effectiveness of bacterial adhesion. Sci Rep 2023; 13:5557. [PMID: 37020117 PMCID: PMC10076433 DOI: 10.1038/s41598-023-32758-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/01/2023] [Indexed: 04/07/2023] Open
Abstract
In this paper, we present the results of research on the physicochemical properties of two selected faces of the struvite crystal, which is the main component of infectious urinary stones. Two main faces, (001) and ([Formula: see text]), ending the c-axis, were selected for the study. These faces are not related by symmetry relations, which means, among other things, that they should have a different atomic structure, which was confirmed experimentally. In addition, the studies show that the tested surfaces have hydrophilic properties, however, the ([Formula: see text]) face is more hydrophilic compared to the (001) face. The physicochemical properties of the crystal as a whole, as well as the physicochemical properties of these faces influence the magnitude of adhesion. The adhesive force in both water and artificial urine is greater for face ([Formula: see text]) compared to face (001). The assessment of the adhesion of Proteus mirabilis bacteria in artificial urine also shows that the adhesion is greater for face ([Formula: see text]) than for face (001). The adhesion of bacteria to the examined faces of the struvite crystal, and in particular the increased adhesion of bacteria to the face ([Formula: see text]), may be the first stage of biofilm formation, which may result in a high rate of recurrence of infectious urinary stones after treatment.
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Affiliation(s)
- Jolanta Prywer
- Institute of Physics, Lodz University of Technology, Wólczańska 217/221, 93-005, Łódź, Poland.
| | - Agnieszka Torzewska
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Łódź, Poland
| | - Michał Cichomski
- Department of Materials Technology and Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163, 90-236, Łódź, Poland
| | - Paweł Piotr Michałowski
- Łukasiewicz Research Network - Institute of Microelectronics and Photonics, Aleja Lotników 32/46, 02-668, Warsaw, Poland
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Eren E, Karabulut YY, Eren M, Kadir S. Mineralogy, geochemistry, and micromorphology of human kidney stones (urolithiasis) from Mersin, the southern Turkey. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023:10.1007/s10653-023-01525-8. [PMID: 36934357 DOI: 10.1007/s10653-023-01525-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
This study describes the primary characteristics of the selected kidney stones surgically removed from the patients at the Mersin University Hospital in the southern Turkey and interprets their formation via petrographic, geochemical, XRD, SEM-EDX, and ICP-MS/OES analyses. The analytical results revealed that the kidney stones are composed of the minerals whewellite, struvite, hydroxyapatite, and uric acid alone or in different combinations. The samples occur in staghorn, bean-shaped composite, and individual rounded particle shapes, which are controlled by the shape of the nucleus and the site of stone formation. The cross-section of the samples shows concentric growth layers due to variations in saturation, characterizing the metastable phase. Kidney stone formation includes two main stages: (i) nucleation and (ii) aggregation and/or growth. Nucleation was either Randall plaque of hydroxyapatite in tissue on the surface of the papilla or a coating of whewellite on the plaque, or crystallization as free particles in the urine. Subsequently, aggregation or growth occurs by precipitation of stone-forming materials around the plaque or coating carried into the urine, or around the nucleus formed in situ in the urine. Urinary supersaturation is the main driving force of crystallization processes; and is controlled by many factors including bacterially induced supersaturation.
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Affiliation(s)
- Elif Eren
- Faculty of Medicine, San Raffaele University, Milan, Italy.
| | | | - Muhsin Eren
- Department of Geological Engineering, Mersin University, Mersin, Turkey
| | - Selahattin Kadir
- Department of Geological Engineering, Eskişehir Osmangazi University, Eskişehir, Turkey
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He Y, Liu S, Shen G, Pan M, Cai Y, Yu J. Treatment of engineering waste slurries by microbially induced struvite precipitation mechanisms. Front Bioeng Biotechnol 2023; 11:1109265. [PMID: 36741750 PMCID: PMC9895107 DOI: 10.3389/fbioe.2023.1109265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 01/06/2023] [Indexed: 01/21/2023] Open
Abstract
With societal development, the growing scale of engineering construction, and the increase in environmental protection requirements, the necessity of engineering waste mud disposal is becoming increasingly prominent. In this study, microbially induced struvite precipitation (MISP) was introduced to treat engineering waste mud. The study mainly focused on: i) the optimal mineralization scheme for microbially induced struvite precipitation, ii) the feasibility of the process and the effect of reaction parameters on treating engineering waste mud with microbially induced struvite precipitation, and iii) the mechanism of microbially induced struvite precipitation in treating engineering waste mud. The results showed that the waste mud could be well treated with 8.36 × 10 6 c e l l ⋅ m L - 1 bacteria, 10 mM urea, 20 mM phosphate buffer, and 25 mM M g C l 2 at pH 7. The kaolin suspension could be effectively flocculated. The flocculation rate reached approximately 87.2% under the optimum mineralization conditions. The flocculation effect was mainly affected by the concentrations of reactants and heavy metals and the suspension pH. The X-ray diffraction (XRD) patterns showed a strong struvite (MAP) diffraction peak. Scanning electron microscopy (SEM) images indicated that under the optimal mineralization conditions, the crystals were large and showed prismatic shapes tilted at both ends with adhered kaolin particles. In summary, this manuscript provides an effective way to treat engineering waste mud, and the findings should have a positive effect on enhancing soil fertility and preventing secondary pollution.
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Affiliation(s)
- Yuhan He
- College of Civil Engineering, Huaqiao University, Xiamen, China
| | - Shiyu Liu
- College of Civil Engineering, Huaqiao University, Xiamen, China,*Correspondence: Shiyu Liu,
| | - Gangqiang Shen
- College of Civil Engineering, Huaqiao University, Xiamen, China
| | - Muzhi Pan
- Fujian Water Conservancy and Hydropower Engineering Bureau Company Limited, Quanzhou, China
| | - Yanyan Cai
- College of Civil Engineering, Huaqiao University, Xiamen, China
| | - Jin Yu
- College of Civil Engineering, Huaqiao University, Xiamen, China
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6
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Raj CT D, Palaninathan V, James RA. Anti-uropathogenic, antioxidant and struvite crystallization inhibitory potential of fresh and fermented coconut water. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Daudon M, Petay M, Vimont S, Deniset A, Tielens F, Haymann JP, Letavernier E, Frochot V, Bazin D. Urinary tract infection inducing stones: some clinical and chemical data. CR CHIM 2022. [DOI: 10.5802/crchim.159] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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8
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Fang C, Mi T, Achal V. Sustainable bio-bricks prepared with synthetic urine enabled by biomineralization reactions. Lett Appl Microbiol 2021; 73:793-799. [PMID: 34606639 DOI: 10.1111/lam.13574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/16/2021] [Accepted: 08/24/2021] [Indexed: 11/28/2022]
Abstract
In this study, mineralization during brick preparation was performed with ureolytic bacterium, Lysinibacillus fusiformis that use urine as a substrate, omitting the heat that is normally required. Artificial urine for reasons of standardization was used to grow the bacterium for bio-bricks made of clay and cement, but their mineralization was enabled by biological activity instead of by heat. Scanning electron microscopy and energy dispersion X-ray spectroscopy were conducted to analyse the microstructures formed by L. fusiformis that precipitated various minerals in synthetic urine. The brick specimens were tested for compressive strength that was 59% more than control ones, whereas porosity of bio-bricks was 13% compared to 22% of control specimens. The minerals formed in the bio-bricks confirmed as struvite, apatite and calcite by Fourier-transform infrared spectroscopy and X-ray diffraction spectra, were responsible for improved strength and reduced porosity. The research provided evidence in utilizing ureolytic bacteria as a mode to mineralize clay in brick production with the use of (artificial) urine as a substrate.
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Affiliation(s)
- C Fang
- Environmental Science and Engineering Program, Guangdong Technion - Israel Institute of Technology, Shantou, China.,Department of Civil and Environmental Engineering, Technion - Israel Institute of Technology, Haifa, Israel
| | - T Mi
- Environmental Science and Engineering Program, Guangdong Technion - Israel Institute of Technology, Shantou, China
| | - V Achal
- Environmental Science and Engineering Program, Guangdong Technion - Israel Institute of Technology, Shantou, China
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9
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Leng Y, Soares A. Understanding the mechanisms of biological struvite biomineralisation. CHEMOSPHERE 2021; 281:130986. [PMID: 34289630 DOI: 10.1016/j.chemosphere.2021.130986] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 03/14/2021] [Accepted: 05/22/2021] [Indexed: 06/13/2023]
Abstract
The mechanisms of struvite production through biomineralisation were investigated for five microorganisms (Bacillus pumilus, Brevibacterium antiquum, Myxococcus xanthus, Halobacterium salinarum and Idiomarina loihiensis). After 72-96 h of incubation, the microbial strains tested increased the solution pH from 7.5 to 7.7 to 8.4-8.7, and removed ortho-phosphate (63-71%) and magnesium (94-99%) by biomineralisation. The minerals formed were identified as struvite (i.e. bio-struvite). Within the initial 24 h of incubation, microbial growth rates of 0.16-0.28 1/h were measured, and bio-struvite production was observed when the solution supersaturation index with respect to struvite achieved 0.6-0.8 units. The crystals produced by B. pumilus, H. salinarum and M. xanthus were thin trapezoidal-platy shaped and presented a gap size about 200 μm for intervals between cumulative volume undersize distribution at 50% and 90%. While B. antiquum and I. loihiensis produced crystals of coffin-lid/long-bar shape and a narrow size gap around 100 μm for intervals between cumulative volume percentage of 50% and 90%, indicating homogeneous crystal size distribution. Intracellular supersaturation of struvite phase was achieved within B. antiquum and I. loihiensis cells, corresponding to observation of intracellular vesicle-like structures occupied with electron-dense granules/materials. This study suggests that B. antiquum and I. loihiensis produced bio-struvite through biologically controlled mineralisation. This mechanism is the preferred for recovering nutrients from streams such as wastewater because it allows a link between manipulation of microbial growth conditions and bio-struvite production, even in highly complex streams like wastewater.
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Affiliation(s)
- Yirong Leng
- Cranfield Water Science Institute, Cranfield University, Bedfordshire, MK43 0AL, UK
| | - Ana Soares
- Cranfield Water Science Institute, Cranfield University, Bedfordshire, MK43 0AL, UK.
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Nandre V, Kumbhar N, Battu S, Kale Y, Bagade A, Haram S, Kodam K. Siderophore mediated mineralization of struvite: A novel greener route of sustainable phosphate management. WATER RESEARCH 2021; 203:117511. [PMID: 34375932 DOI: 10.1016/j.watres.2021.117511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/24/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
Efficient and sustainable removal of phosphate ions from an aqueous solution is of great challenge. Herein we demonstrated a greener route for phosphate recovery through struvite formation by using bacterial siderophore. This method was efficient for removal of phosphate as low as 1.3 mM with 99% recovery efficiency. The siderophore produced by Pseudomonas taiwanensis R-12-2 act as template for the nucleation of struvite crystals and was found sustainable for recycling the phosphorous efficiently after twenty cycles. The formation of struvite crystals is driven by surrounding pH (9.0) and presence of Mg2+ and NH4+ ions along with PO43- and siderophore which was further validated by computational studies. The morphology of struvite was characterized by scanning electron microscopy, followed by elemental analysis. Furthermore, our results revealed that the siderophore plays an important role in struvite biomineralization. We have successfully demonstrated the phosphate sequestration by using industrial waste samples, as possible application for environmental sustainability and phosphate conservation. For the first time electrochemical super-capacitance performance of the struvite was studied. The specific capacitance value for the struvite was found to be 320 F g-1 at 1.87 A g-1 and retained 92 % capacitance after 250 cycles. The study revealed the potential implications of siderophore for the phosphate recycling and the new mechanism for biomineralization by sequestering into struvite.
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Affiliation(s)
- Vinod Nandre
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India
| | - Navanath Kumbhar
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India
| | - Shateesh Battu
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India
| | - Yuvraj Kale
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India
| | - Aditi Bagade
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India
| | - Santosh Haram
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India
| | - Kisan Kodam
- Department of Chemistry, Savitribai Phule Pune University, Pune 411007, India.
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Elduayen-Echave B, Lizarralde I, Schneider PA, Ayesa E, Larraona GS, Grau P. Inclusion of shear rate effects in the kinetics of a discretized population balance model: Application to struvite precipitation. WATER RESEARCH 2021; 200:117242. [PMID: 34052476 DOI: 10.1016/j.watres.2021.117242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 05/02/2021] [Accepted: 05/08/2021] [Indexed: 06/12/2023]
Abstract
The effect of mixing in the modelling of processes based on mass transfer phenomena is commonly ignored in wastewater treatment industry. In this contribution, the effect of the average shear rate in the nucleation and growth rates of struvite is analyzed by combining experimental data with simulation results obtained with a previously presented mass-based discretized population balance model. According to the obtained results, the effect of the average shear rate is identifiable for the selected data and mechanisms. Therefore, it should be considered when a detailed modelling of the process is needed. Consequently, in this contribution, the average shear rate has been decoupled from the kinetic constants. In addition, kinetic rates where it is explicitly included as a power law function have been proposed. The exponents in these power law functions for the primary homogeneous nucleation and growth are 1.3 and 0.3, respectively. Considering shear rate effects allowed to see in the simulation outputs experimentally observed effects: a faster pH decay and smaller particle distribution for increasing mixing intensities.
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Affiliation(s)
- B Elduayen-Echave
- CEIT-Basque Research and Technology Alliance (BRTA), Manuel Lardizabal 15, Donostia, San Sebastián 20018, Spain.
| | - I Lizarralde
- Universidad de Navarra, Tecnun Escuela de Ingenieros, Manuel Lardizabal 13, Donostia, San Sebastián 20018, Spain.
| | - P A Schneider
- Engineering & Energy, Murdoch University, 90 South St, Murdoch WA 6150, Australia.
| | - E Ayesa
- CEIT-Basque Research and Technology Alliance (BRTA), Manuel Lardizabal 15, Donostia, San Sebastián 20018, Spain.
| | - G S Larraona
- Universidad de Navarra, Tecnun Escuela de Ingenieros, Manuel Lardizabal 13, Donostia, San Sebastián 20018, Spain.
| | - P Grau
- Universidad de Navarra, Tecnun Escuela de Ingenieros, Manuel Lardizabal 13, Donostia, San Sebastián 20018, Spain.
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Li H, Zhao TL, Qian FJ, Jiang HF, Yao QZ, Luo Y, Fu SQ, Zhou GT. A model of extracellular polymeric substances on crystal growth and morphogenesis of struvite: Effects of sodium alginate. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.11.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Saw JJ, Sivaguru M, Wilson EM, Dong Y, Sanford RA, Fields CJ, Cregger MA, Merkel AC, Bruce WJ, Weber JR, Lieske JC, Krambeck AE, Rivera ME, Large T, Lange D, Bhattacharjee AS, Romero MF, Chia N, Fouke BW. In Vivo Entombment of Bacteria and Fungi during Calcium Oxalate, Brushite, and Struvite Urolithiasis. KIDNEY360 2021; 2:298-311. [PMID: 35373025 PMCID: PMC8740987 DOI: 10.34067/kid.0006942020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 12/23/2020] [Indexed: 02/04/2023]
Abstract
Background Human kidney stones form via repeated events of mineral precipitation, partial dissolution, and reprecipitation, which are directly analogous to similar processes in other natural and manmade environments, where resident microbiomes strongly influence biomineralization. High-resolution microscopy and high-fidelity metagenomic (microscopy-to-omics) analyses, applicable to all forms of biomineralization, have been applied to assemble definitive evidence of in vivo microbiome entombment during urolithiasis. Methods Stone fragments were collected from a randomly chosen cohort of 20 patients using standard percutaneous nephrolithotomy (PCNL). Fourier transform infrared (FTIR) spectroscopy indicated that 18 of these patients were calcium oxalate (CaOx) stone formers, whereas one patient formed each formed brushite and struvite stones. This apportionment is consistent with global stone mineralogy distributions. Stone fragments from seven of these 20 patients (five CaOx, one brushite, and one struvite) were thin sectioned and analyzed using brightfield (BF), polarization (POL), confocal, super-resolution autofluorescence (SRAF), and Raman techniques. DNA from remaining fragments, grouped according to each of the 20 patients, were analyzed with amplicon sequencing of 16S rRNA gene sequences (V1-V3, V3-V5) and internal transcribed spacer (ITS1, ITS2) regions. Results Bulk-entombed DNA was sequenced from stone fragments in 11 of the 18 patients who formed CaOx stones, and the patients who formed brushite and struvite stones. These analyses confirmed the presence of an entombed low-diversity community of bacteria and fungi, including Actinobacteria, Bacteroidetes, Firmicutes, Proteobacteria, and Aspergillus niger. Bacterial cells approximately 1 μm in diameter were also optically observed to be entombed and well preserved in amorphous hydroxyapatite spherules and fans of needle-like crystals of brushite and struvite. Conclusions These results indicate a microbiome is entombed during in vivo CaOx stone formation. Similar processes are implied for brushite and struvite stones. This evidence lays the groundwork for future in vitro and in vivo experimentation to determine how the microbiome may actively and/or passively influence kidney stone biomineralization.
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Affiliation(s)
- Jessica J. Saw
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Mayo Clinic Alix School of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Mayandi Sivaguru
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Elena M. Wilson
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Yiran Dong
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Robert A. Sanford
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Geology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Chris J. Fields
- Roy J. Carver Biotechnology Center, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Melissa A. Cregger
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
| | - Annette C. Merkel
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - William J. Bruce
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Joseph R. Weber
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - John C. Lieske
- Department of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Amy E. Krambeck
- Department of Urology, Mayo Clinic, Rochester, Minnesota
- Department of Urology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Marcelino E. Rivera
- Department of Urology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Timothy Large
- Department of Urology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Dirk Lange
- The Stone Centre at Vancouver General Hospital, Department of Urologic Sciences, University of British Columbia, Jack Bell Research Centre, Vancouver, British Columbia, Canada
| | - Ananda S. Bhattacharjee
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Michael F. Romero
- Department of Individualized Medicine, Mayo Clinic, Rochester, Minnesota
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Nicholas Chia
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
- Department of Urology, Mayo Clinic, Rochester, Minnesota
| | - Bruce W. Fouke
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Geology, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Roy J. Carver Biotechnology Center, University of Illinois at Urbana-Champaign, Urbana, Illinois
- Department of Evolution, Ecology and Behavior, University of Illinois at Urbana-Champaign, Urbana, Illinois
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14
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Morphogenesis and evolution mechanisms of bacterially-induced struvite. Sci Rep 2021; 11:170. [PMID: 33420384 PMCID: PMC7794283 DOI: 10.1038/s41598-020-80718-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/15/2020] [Indexed: 11/09/2022] Open
Abstract
Bacteria are able to induce struvite precipitation, and modify struvite morphology, leading to the mineral with various growth habits. However, the relevant work involving the morphogenesis is limited, thereby obstructing our understanding of bacterially mediated struvite mineralization. Here, an actinomycete Microbacterium marinum sp. nov. H207 was chosen to study its effect on struvite morphology. A combination of bacterial mineralization and biomimetic mineralization techniques was adopted. The bacterial mineralization results showed that strain H207 could induce the formation of struvite with grouping structure (i.e., a small coffin-like crystal grown on a large trapezoid-like substrate crystal), and the overgrowth structure gradually disappeared, while the substrate crystal further evolved into coffin-like, and quadrangular tabular morphology with time. The biomimetic experiments with different organic components confirmed that the soluble macromolecules rich in electronegative carboxyl groups secreted by strain H207 dominate the formation of the struvite grouping. The time-course biomimetic experiments with supernatant testified that the increase in pH and NH4+ content promoted the evolution of crystal habits. Moreover, the evolution process of substrate crystal can be divided into two stages. At the first stage, the crystal grew along the crystallographic b axis. At the later stage, coupled dissolution–precipitation process occurred, and the crystals grew along the corners (i.e., [110] and [1-10] directions). In the case of dissolution, it was also found that the (00-1) face of substrate crystal preferentially dissolved, which results from the low initial phosphate content and high PO43− density on this face. As a result, present work can provide a deeper insight into bio-struvite mineralization.
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15
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Natural Cyanobacterial Polymer-Based Coating as a Preventive Strategy to Avoid Catheter-Associated Urinary Tract Infections. Mar Drugs 2020; 18:md18060279. [PMID: 32466349 PMCID: PMC7344411 DOI: 10.3390/md18060279] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/14/2020] [Accepted: 05/24/2020] [Indexed: 12/16/2022] Open
Abstract
Catheter-associated urinary tract infections (CAUTIs) represent about 40% of all healthcare-associated infections. Herein, the authors report the further development of an infection preventive anti-adhesive coating (CyanoCoating) meant for urinary catheters, and based on a natural polymer released by a marine cyanobacterium. CyanoCoating performance was assessed against relevant CAUTI etiological agents, namely Escherichia coli, Proteus mirabilis, Klebsiella pneumoniae, methicillin resistant Staphylococcus aureus (MRSA), and Candida albicans in the presence of culture medium or artificial urine, and under biofilm promoting settings. CyanoCoating displayed a broad anti-adhesive efficiency against all the uropathogens tested (68–95%), even in the presence of artificial urine (58–100%) with exception of P. mirabilis in the latter condition. Under biofilm-promoting settings, CyanoCoating reduced biofilm formation by E. coli, P. mirabilis, and C. albicans (30–60%). In addition, CyanoCoating prevented large crystals encrustation, and its sterilization with ethylene oxide did not impact the coating stability. Therefore, CyanoCoating constitutes a step forward for the implementation of antibiotic-free alternative strategies to fight CAUTIs.
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16
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Bayuseno AP, Perwitasari DS, Muryanto S, Tauviqirrahman M, Jamari J. Kinetics and morphological characteristics of struvite (MgNH 4PO 4.6H 2O) under the influence of maleic acid. Heliyon 2020; 6:e03533. [PMID: 32215325 PMCID: PMC7090354 DOI: 10.1016/j.heliyon.2020.e03533] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/22/2020] [Accepted: 03/02/2020] [Indexed: 11/29/2022] Open
Abstract
This work reports a stirred-batch lab crystallization to examine the influence of maleic acid (HO2CCHCHCO2H), and temperatures (30 and 40 °C) on crystallization kinetics and morphology of struvite. The crystallization was followed by measuring the pH change up to 70 min. The pH decreased drastically for the first 5 min of the run, then started to tail off. It was found that the crystallization rate constants range from 1.608 to 6.534 per hour, which agrees with the most published value. Higher maleic acid concentrations resulted in greater growth retardation; the highest retardation was 74.21%, which was achieved for 30 °C with 20.00 ppm maleic acid. SEM imaging of the obtained precipitates showed irregular prismatic morphology, and the associated EDX confirmed that the precipitates were struvite (MgNH4PO4⋅6H2O). As checked through XRD, the crystalline nature of the struvite was further confirmed, and that co-precipitation of struvite with struvite-K was observed. The co-precipitation was the result of K+ adsorption onto the crystal surface. Temperatures had less influence on struvite crystallization. At 40oC and 20.00 ppm the rate constant was 1.332 per hour; whereas at 30oC and 0.00 ppm) the corresponding was 1.776 per hour, indicating the retardation of about 25%. Thus, the temperature effect is only 1/3 of the maleic acid effect. The current findings suggest that the presence of maleic acid can be used to elucidate the mechanism of crystallization as well as the crystalline phase transformation of struvite. In practical terms, maleic acid could be potential as a scale inhibitor.
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Affiliation(s)
| | - Dyah Suci Perwitasari
- Department of Chemical Engineering, Universitas Pembangunan National "Veteran" Jawa Timur, Surabaya 60294 Indonesia
| | - Stefanus Muryanto
- Department of Chemical Engineering, UNTAG University in Semarang, Bendhan Dhuwur Campus, Semarang 50233, Indonesia
| | - Mohammad Tauviqirrahman
- Department of Mechanical Engineering, Diponegoro University, Tembalang Campus, Semarang 50275, Indonesia
| | - Jamari Jamari
- Department of Mechanical Engineering, Diponegoro University, Tembalang Campus, Semarang 50275, Indonesia
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17
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Kim D, Olympiou C, McCoy CP, Irwin NJ, Rimer JD. Time-Resolved Dynamics of Struvite Crystallization: Insights from the Macroscopic to Molecular Scale. Chemistry 2020; 26:3555-3563. [PMID: 31742800 DOI: 10.1002/chem.201904347] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 11/05/2019] [Indexed: 12/14/2022]
Abstract
The crystallization of magnesium ammonium phosphate hexahydrate (struvite) often occurs under conditions of fluid flow, yet the dynamics of struvite growth under these relevant environments has not been previously reported. In this study, we use a microfluidic device to evaluate the anisotropic growth of struvite crystals at variable flow rates and solution supersaturation. We show that bulk crystallization under quiescent conditions yields irreproducible data owing to the propensity of struvite to adopt defects in its crystal lattice, as well as fluctuations in pH that markedly impact crystal growth rates. Studies in microfluidic channels allow for time-resolved analysis of seeded growth along all three principle crystallographic directions and under highly controlled environments. After having first identified flow rates that differentiate diffusion and reaction limited growth regimes, we operated solely in the latter regime to extract the kinetic rates of struvite growth along the [100], [010], and [001] directions. In situ atomic force microscopy was used to obtain molecular level details of surface growth mechanisms. Our findings reveal a classical pathway of crystallization by monomer addition with the expected transition from growth by screw dislocations at low supersaturation to that of two-dimensional layer generation and spreading at high supersaturation. Collectively, these studies present a platform for assessing struvite crystallization under flow conditions and demonstrate how this approach is superior to measurements under quiescent conditions.
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Affiliation(s)
- Doyoung Kim
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
| | - Chara Olympiou
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Colin P McCoy
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Nicola J Irwin
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA
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18
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Behzadi P, Urbán E, Matuz M, Benkő R, Gajdács M. The Role of Gram-Negative Bacteria in Urinary Tract Infections: Current Concepts and Therapeutic Options. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1323:35-69. [PMID: 32596751 DOI: 10.1007/5584_2020_566] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Urinary tract infections (UTIs) are some of the most common infections in human medicine worldwide, recognized as an important public health concern to healthcare systems around the globe. In addition, urine specimens are one of the most frequently submitted samples for culture to the clinical microbiology laboratory, exceeding the number of most of the other sample types. The epidemiology, species-distribution and susceptibility-patterns of uropathogens vary greatly in a geographical and time-dependent manner and it also strongly correlated with the reported patient population studied. Nevertheless, many studies highlight the fact that the etiological agents in UTIs have changed considerably, both in nosocomial and community settings, with a shift towards "less common" microorganisms having more pronounced roles. There is increasing demand for further research to advance diagnostics and treatment options, and to improve care of the patients. The aim of this review paper was to summarize current developments in the global burden of UTI, the diagnostic aspects of these infectious pathologies, the possible etiological agents and their virulence determinants (with a special focus on the members of the Enterobacterales order), current guidelines and quality indicators in the therapy of UTIs and the emergence of multidrug resistance in urinary pathogens.
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Affiliation(s)
- Payam Behzadi
- Department of Microbiology, College of Basic Sciences Islamic Azad University, Tehran, Iran
| | - Edit Urbán
- Department of Public Health, Faculty of Medicine, University of Szeged, Szeged, Hungary.,Institute of Translational Medicine, University of Pécs, Medical School, Pécs, Hungary
| | - Mária Matuz
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
| | - Ria Benkő
- Department of Clinical Pharmacy, Faculty of Pharmacy, University of Szeged, Szeged, Hungary.,Central Pharmacy Service, Emergency Department, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Márió Gajdács
- Institute of Medical Microbiology, Faculty of Medicine, Semmelweis University, Budapest, Hungary. .,Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Szeged, Hungary.
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19
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Moragaspitiya C, Rajapakse J, Millar GJ. Effect of Ca:Mg ratio and high ammoniacal nitrogen on characteristics of struvite precipitated from waste activated sludge digester effluent. J Environ Sci (China) 2019; 86:65-77. [PMID: 31787191 DOI: 10.1016/j.jes.2019.04.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/19/2019] [Accepted: 04/22/2019] [Indexed: 06/10/2023]
Abstract
This study revealed the relationship between the presence of calcium impurities and ammoniacal nitrogen concentration upon crystallization of struvite. The research hypothesis was that the presence of both calcium and high concentrations of ammoniacal nitrogen (328-1000 mg/L) in waste activated sludge may influence the struvite quality and acid stability. Hence, we studied the impact of Ca:Mg ratio upon morphology, particle size, purity and dissolution of struvite, in the presence of varying levels of excess ammoniacal nitrogen. X-ray diffraction revealed that up to 31.4% amorphous material was made which was assigned to hydroxyapatite. Increasing the ammoniacal nitrogen concentration and elevation of the Mg:Ca ratio maximized the presence of struvite. Struvite particle size was also increased by ammoniacal nitrogen as was twinning of the crystals. Tests with dilute solutions of organic acid revealed the sensitivity of struvite dissolution to the physical characteristics of the struvite. Smaller particles (21.2 μm) dissolved at higher rates than larger particles (35.86 μm). However, struvite dissolved rapidly as the pH was further reduced irrespective of the physical characteristics. Therefore, addition of struvite to low pH soils was not viewed as beneficial in terms of controlled nutrient release. Overall, this study revealed that waste activated sludge effluent with high ammoniacal nitrogen was prospective for synthesis of high quality struvite material.
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Affiliation(s)
- Chathurani Moragaspitiya
- Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Queensland 4000, Australia
| | - Jay Rajapakse
- Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Queensland 4000, Australia.
| | - Graeme J Millar
- Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Queensland 4000, Australia
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20
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Prywer J, Torzewska A. Aggregation of poorly crystalline and amorphous components of infectious urinary stones is mediated by bacterial lipopolysaccharide. Sci Rep 2019; 9:17061. [PMID: 31745124 PMCID: PMC6863890 DOI: 10.1038/s41598-019-53359-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/23/2019] [Indexed: 11/23/2022] Open
Abstract
Poorly crystalline and amorphous precipitate (PCaAP) is one of the components of the so-called infectious urinary stones, which are the result of the activity of urease-producing microorganisms, mainly from the Proteus species, in particular Proteus mirabilis. The main component of this kind of stones is crystalline struvite (MgNH4PO4∙6H2O). Bacteria can build into the structure of the urinary stone and, in this way, they are one of the components of the urinary stone. From these three components - PCaAP, struvite and Proteus mirabilis - PCaAP exhibits the greatest ability to aggregate. The present study focuses on the aggregation of PCaAP. In particular, an influence of lipopolysaccharide (LPS) isolated from Proteus mirabilis on aggregation of PCaAP is presented. An aggregation of PCaAP is characterized by cross-sectional area of aggregates and zeta potential. The results demonstrate that, in artificial urine, the influence of freely suspended LPS on aggregation of PCaAP depends on the concentrations of LPS. Small concentrations of freely suspended LPS enhance the aggregation of PCaAP compared to the control test. For high concentrations of freely suspended LPS the formation of aggregates of PCaAP is inhibited. LPS, which is not freely suspended, but covers polystyrene latex beads, has no such properties. The investigations provide evidence for the importance of biological regulation in the PCaAP aggregation process.
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Affiliation(s)
- Jolanta Prywer
- Institute of Physics, Lodz University of Technology, ul. Wólczańska 219, 90-924, Łódź, Poland.
| | - Agnieszka Torzewska
- Department of Biology of Bacteria, Faculty of Biology and Environmental Protection, University of Lodz, ul. Banacha 12/16, 90-237, Łódź, Poland
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21
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Abstract
Infection stones are complex aggregates of crystals amalgamated in an organic matrix that are strictly associated with urinary tract infections. The management of patients who form infection stones is challenging owing to the complexity of the calculi and high recurrence rates. The formation of infection stones is a multifactorial process that can be driven by urine chemistry, the urine microenvironment, the presence of modulator substances in urine, associations with bacteria, and the development of biofilms. Despite decades of investigation, the mechanisms of infection stone formation are still poorly understood. A mechanistic understanding of the formation and growth of infection stones - including the role of organics in the stone matrix, microorganisms, and biofilms in stone formation and their effect on stone characteristics - and the medical implications of these insights might be crucial for the development of improved treatments. Tools and approaches used in various disciplines (for example, engineering, chemistry, mineralogy, and microbiology) can be applied to further understand the microorganism-mineral interactions that lead to infection stone formation. Thus, the use of integrated multidisciplinary approaches is imperative to improve the diagnosis, prevention, and treatment of infection stones.
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22
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Liu F, Lane P, Hewson JC, Stavila V, Tran-Gyamfi MB, Hamel M, Lane TW, Davis RW. Development of a closed-loop process for fusel alcohol production and nutrient recycling from microalgae biomass. BIORESOURCE TECHNOLOGY 2019; 283:350-357. [PMID: 30933901 DOI: 10.1016/j.biortech.2019.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 06/09/2023]
Abstract
Improving the economic feasibility is necessary for algae-based processes to achieve commercial scales for biofuels and bioproducts production. A closed-loop system for fusel alcohol production from microalgae biomass with integrated nutrient recycling was developed, which enables the reuse of nitrogen and phosphorus for downstream application and thus reduces the operational requirement for external major nutrients. Mixed fusel alcohols, primarily isobutanol and isopentanol were produced from Microchloropsis salina hydrolysates by an engineered E. coli co-culture. During the process, cellular nitrogen from microalgae biomass was converted into ammonium, whereas cellular phosphorus was liberated by an osmotic shock treatment. The formation of struvite from the liberated ammonium and phosphate, and the subsequent utilization of struvite to support M. salina cultivation was demonstrated. The closed loop system established here should help overcome one of the identified economic barriers to scale-up of microalgae production, and enhance the sustainability of microalgae-based chemical commodities production.
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Affiliation(s)
- Fang Liu
- Department of Biomass Science & Conversion Technologies, Sandia National Laboratories, Livermore, CA 94550, USA
| | - Pamela Lane
- Department of Systems Biology, Sandia National Laboratories, Livermore, CA 94550, USA
| | - John C Hewson
- Department of Fire Science and Technology, Sandia National Laboratories, Livermore, CA 94550, USA
| | - Vitalie Stavila
- Department of Energy Nanomaterials, Sandia National Laboratories, Livermore, CA 94550, USA
| | - Mary B Tran-Gyamfi
- Department of Biomass Science & Conversion Technologies, Sandia National Laboratories, Livermore, CA 94550, USA
| | - Michele Hamel
- Department of Biomass Science & Conversion Technologies, Sandia National Laboratories, Livermore, CA 94550, USA
| | - Todd W Lane
- Department of Systems Biology, Sandia National Laboratories, Livermore, CA 94550, USA
| | - Ryan W Davis
- Department of Biomass Science & Conversion Technologies, Sandia National Laboratories, Livermore, CA 94550, USA.
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23
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Imani Rad H, Peeri H, Amani M, Mohammadnia A, Ogunniyi AD, Khazandi M, Venter H, Arzanlou M. Allicin prevents the formation of Proteus-induced urinary crystals and the blockage of catheter in a bladder model in vitro. Microb Pathog 2019; 132:293-301. [PMID: 31082531 DOI: 10.1016/j.micpath.2019.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 10/26/2022]
Abstract
Stone formation and catheter blockage are major complications of Proteus UTIs. In this study, we investigated the ability of allicin to inhibit P. mirabilis-induced struvite crystallization and catheter blockage using a synthetic bladder model. Struvite crystallization inhibition study was carried out using P. mirabilis lysate as urease enzyme source in synthetic urine (SU). Struvite productions were monitored by phase contrast light microscopy and measurements of pH, Mg2+ and Ca2+ precipitation and turbidity. A catheter blockage study was performed in a synthetic bladder model mimicking natural UTI in the presence of allicin at sub-MIC concentrations (MIC = 64 μg/ml). The results of crystallization study showed that allicin inhibited pH rise and consequently turbidity and precipitation of ions in a dose-dependent manner. The results of catheter blockage study showed that allicin at sub-MIC concentrations (2, 4, 8 μg/ml) significantly increased the time for catheter blockage to occur to 61, 74 and 92 h respectively compared to allicin-free control (48 h). In a similar way, the results showed that allicin delayed the increase of SU pH level in bladder model in a dose-dependent manner compared to allicin-free control. The results also showed that following the increase of allicin concentration, Mg2+ and Ca2+ deposition in catheters were much lower compared to allicin-free control, further confirmed by direct observation of the catheters' eyehole and cross sections. We conclude that allicin prevents the formation of Proteus-induced urinary crystals and the blockage of catheters by delaying pH increase and lowering Mg2+ and Ca2+ deposition in a dose-dependent manner.
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Affiliation(s)
- Hamed Imani Rad
- Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Hadi Peeri
- Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mojtaba Amani
- Department of Clinical Chemistry, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran; Department of Biochemistry, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Alireza Mohammadnia
- Department of Information Technologies, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Abiodun David Ogunniyi
- Australian Centre for Antimicrobial Resistance Ecology, School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia, Australia
| | - Manouchehr Khazandi
- Australian Centre for Antimicrobial Resistance Ecology, School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia, Australia
| | - Henrietta Venter
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, 5000, Australia
| | - Mohsen Arzanlou
- Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
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24
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Yee RA, Leifels M, Scott C, Ashbolt NJ, Liu Y. Evaluating Microbial and Chemical Hazards in Commercial Struvite Recovered from Wastewater. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:5378-5386. [PMID: 30964655 DOI: 10.1021/acs.est.8b03683] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Controlled struvite (NH4MgPO4·6H2O) precipitation has become a well-known process for nutrient recovery from wastewater treatment systems to alleviate the pressures of diminishing, finite rock phosphate reservoirs. Nonetheless, coprecipitation of potential microbial and chemical hazards is poorly understood. On the other hand, antimicrobial resistance (AMR) is a major global public health concern and wastewater is thought to disseminate resistance genes within bacteria. Fecal indicator bacteria (FIB) are typically used as measures of treatment quality, and with multiresistant E. coli and Enterococcus spp. rising in concern, the quantification of FIB can be used as a preliminary method to assess the risk of AMR. Focusing on struvite produced from full-scale operations, culture and qPCR methods were utilized to identify FIB, antibiotic resistance genes, and human enteric viruses in the final product. Detection of these hazards occurred in both wet and dry struvite samples indicating that there is a potential risk that needs further consideration. Chemical and biological analyses support the idea that the presence of other wastewater components can impact struvite formation through ion and microbial interference. While heavy metal concentrations met current fertilizer standards, the presence of K, Na, Ca, and Fe ions can impact struvite purity yet provide benefit for agricultural uses. Additionally, the quantified hazards detected varied among struvite samples produced from different methods and sources, thus indicating that production methods could be a large factor in the risk associated with wastewater-recovered struvite. In all, coprecipitation of metals, fecal indicator bacteria, antimicrobial resistance genes, and human enteric viruses with struvite was shown to be likely, and future engineered wastewater systems producing struvite may require additional step(s) to manage these newly identified public health risks.
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Affiliation(s)
- Rachel A Yee
- Department of Civil and Environmental Engineering , University of Alberta , Edmonton , Alberta T6G 2R3 , Canada
| | - Mats Leifels
- Centre for Water and Environmental Research (ZWU) , University Duisburg-Essen , Essen , 47057 , Germany
- School of Public Health , University of Alberta , Edmonton , Alberta T6G 2R3 , Canada
| | - Candis Scott
- School of Public Health , University of Alberta , Edmonton , Alberta T6G 2R3 , Canada
| | - Nicholas J Ashbolt
- School of Public Health , University of Alberta , Edmonton , Alberta T6G 2R3 , Canada
| | - Yang Liu
- Department of Civil and Environmental Engineering , University of Alberta , Edmonton , Alberta T6G 2R3 , Canada
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25
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Manzoor MAP, Duwal SR, Mujeeburahiman M, Rekha PD. Vitamin C inhibits crystallization of struvite from artificial urine in the presence of Pseudomonas aeruginosa. Int Braz J Urol 2019; 44:1234-1242. [PMID: 29617075 PMCID: PMC6442181 DOI: 10.1590/s1677-5538.ibju.2017.0656] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 02/13/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Formation of struvite stones is associated with urinary tract infection by urease-producing bacteria. Biogenic crystal growth in natural and synthetic materials is regulated by the action of inhibitors, ranging from small ions, molecules to large macromolecules. MATERIALS AND METHODS We report the dynamics of in vitro crystallization of struvite in presence of vitamin C in synthetic urine using single diffusion gel growth technique. Sodium metasilicate gel of specific gravity 1.05 and the aqueous solution of ammonium dihydrogen phosphate were used as the medium for growing the struvite crystals. The crystallization process was induced by a urease positive struvite stone associated Pseudomonas aeruginosa to mimic the infection leading to stone formation. The grown crystals were characterized by ATR-FTIR and powder XRD. The surface morphology was analysed through FE-SEM for comparison between treatments. RESULTS We observed decrease in number, dimension, and growth rate of struvite crystals with the increasing concentrations of vitamin C. Crystals displayed well-defined faces and dendritic morphology of struvite in both control and biogenic systems. CONCLUSION The results strongly suggest that, vitamin C can modulate the formation of struvite crystals in the presence of uropathogenic bacteria.
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Affiliation(s)
- Muhammed A P Manzoor
- Yenepoya Research Centre, Yenepoya Medical College, Yenepoya University, Mangalore, Karnataka, India
| | - Surya Ram Duwal
- Department of Biochemistry, Yenepoya Medical College, Yenepoya University, Mangalore, Karnataka, India
| | - M Mujeeburahiman
- Department of Urology, Yenepoya Medical College, Yenepoya University, Mangalore, Karnataka, India
| | - Punchappady-Devasya Rekha
- Yenepoya Research Centre, Yenepoya Medical College, Yenepoya University, Mangalore, Karnataka, India
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26
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Kaleeswaran B, Ramadevi S, Murugesan R, Srigopalram S, Suman T, Balasubramanian T. Evaluation of anti-urolithiatic potential of ethyl acetate extract of Pedalium murex L. on struvite crystal (kidney stone). J Tradit Complement Med 2019; 9:24-37. [PMID: 30671363 PMCID: PMC6335495 DOI: 10.1016/j.jtcme.2017.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 05/16/2017] [Accepted: 08/01/2017] [Indexed: 11/25/2022] Open
Abstract
Pedalium murex (L.) is a traditional herb, commonly used for the treatment of kidney stone related problems. Struvite stone can swiftly grow and become 'staghorn calculi' in kidney and its associated areas, which is the most aching urological disorder. The present study investigated the anti-urolithiasis activities of ethyl acetate extract of P. murex L. (EAEP) against struvite crystal. The antibacterial activity of EAEP examined against several urease producing bacteria. It showed the minimum bactericidal concentration (MBC) against Escherichia coli and Staphylococcus aureus (>125). On the other hand, total mass, volume, number, growth rate and dissolution rate of synthesised struvite crystals were observed at different concentrations 0.5%, 0.75%, 1% of EAEP and without EAEP. In which, EAEP addition showed appreciably reduced struvite crystal. Alternatively, MgO (300 mg of EAEP/kg/body weight) induced urolithiasis of Wistar albino rat at the rate of 1 ml for 28 days. Various biochemical parameters in serum, urine and histological analysis of kidney were taken for evaluation. Significant results (p < 0.05) were observed in 1% EAEP (300 mg) treated group than cystone treated group. From the histological study, reduced renal damage and glomerular development were observed. Our experiment, P. murex L. enhances the reducing activity on struvite crystal and prevents the crystal formation both in-vitro and in-vivo. It can be suggesting that P. murex L. and its phyto-components could be used as remedy for the management of kidney stone by dissolving the struvite stone in kidney.
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Affiliation(s)
- B Kaleeswaran
- Department of Zoology and Biotechnology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur, Tamil Nadu, India
| | - S Ramadevi
- Department of Zoology and Biotechnology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur, Tamil Nadu, India
| | - R Murugesan
- Department of Zoology and Biotechnology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur, Tamil Nadu, India
| | - S Srigopalram
- Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Cheonan, South Korea
| | - T Suman
- Department of Botany, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - T Balasubramanian
- Department of Pharmacology, Al Shifa College of Pharmacy, Poonthavanam Post, Kizhattur Village, Perinthalmanna, Malappuram Dist, Kerala, India
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Investigation on growth and morphology of in vitro generated struvite crystals. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.01.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Manzoor MAP, Singh B, Agrawal AK, Arun AB, Mujeeburahiman M, Rekha PD. Morphological and micro-tomographic study on evolution of struvite in synthetic urine infected with bacteria and investigation of its pathological biomineralization. PLoS One 2018; 13:e0202306. [PMID: 30106992 PMCID: PMC6091953 DOI: 10.1371/journal.pone.0202306] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 07/31/2018] [Indexed: 11/24/2022] Open
Abstract
Pathological biomineralization in the urinary system leads to urolithiasis. Formation of kidney stones involves a series of events during which they undergo morphological and mineralogical changes. We investigated the mineralization of biogenic struvite (in vitro) and examined the transformation of distinct interior and exterior structure of struvite. In vitro crystallization of struvite was performed in the presence of two bacteria that were originally isolated from the kidney stone patients. Morphological evaluation was carried out using SR-μCT as well as FESEM, XRD and FT-IR. Characteristic internal 3-D morphology and porosity of the stones were studied. For comparison, patient derived struvite stones were used. From the results obtained, we report that the presence of bacteria enhances the crystallization process of struvite in vitro. A series of time-resolved experiments revealed that struvite crystals experienced a significant morphologic evolution from pin pointed structure to X-shaped and tabular morphologies. These X-shaped and unusual tabular habits of struvite resembled biogenic morphologies of struvite. SR-μCT showed similarities between the patient derived and the in vitro derived struvite crystals. In conclusion, these experiments revealed that the bacteria play a major role in the specific morphogenesis of struvite and can able to control the nucleation, modulate crystalline phases, and shape of the growing crystal.
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Affiliation(s)
- Muhammed A. P. Manzoor
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
- Department of Urology, Yenepoya Medical College, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
| | - Balwant Singh
- Technical Physics Division, Bhabha Atomic Research Centre, Indore-Mumbai, India
| | - Ashish K. Agrawal
- Technical Physics Division, Bhabha Atomic Research Centre, Indore-Mumbai, India
| | | | - M. Mujeeburahiman
- Department of Urology, Yenepoya Medical College, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
- * E-mail: (RPD); (MM)
| | - Punchappady-Devasya Rekha
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
- * E-mail: (RPD); (MM)
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Chatterjee P, Chakraborty A, Mukherjee AK. Phase composition and morphological characterization of human kidney stones using IR spectroscopy, scanning electron microscopy and X-ray Rietveld analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 200:33-42. [PMID: 29660680 DOI: 10.1016/j.saa.2018.04.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 03/31/2018] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
Pathological calcification in human urinary tract (kidney stones) is a common problem affecting an increasing number of people around the world. Analysis of such minerals or compounds is of fundamental importance for understanding their etiology and for the development of prophylactic measures. In the present study, structural characterization, phase quantification and morphological behaviour of thirty three (33) human kidney stones from eastern India have been carried out using IR spectroscopy (FT-IR), powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM). Quantitative phase composition of kidney stones has been analyzed following the Rietveld method. Based on the quantitative estimates of constituent phases, the calculi samples have been classified into oxalate (OX), uric acid (UA), phosphate (PH) and mixed (MX) groups. Rietveld analysis of PXRD patterns showed that twelve (36%) of the renal calculi were composed exclusively of whewellite (calcium oxalate monohydrate, COM). The remaining twenty one (64%) stones were mixture of phases with oxalate as the major constituent in fourteen (67%) of these stones. The average crystallite size of whewellite in oxalate stones, as determined from the PXRD analysis, varies between 93 (1) nm and 202 (3) nm, whereas the corresponding sizes for the uric acid and struvite crystallites in UA and PH stones are 79 (1)-155 (4) nm and 69 (1)-123(1) nm, respectively. The size of hydroxyapatite crystallites, 10 (1)-21 (1) nm, is smaller by about one order of magnitude compared to other minerals in the kidney stones. A statistical analysis using fifty (50) kidney stones (33 calculi from the present study and 17 calculi reported earlier from our laboratory) revealed that the oxalate group (whewellite, weddellite or mixture of whewellite and weddellite as the major constituent) is the most prevalent (82%) kidney stone type in eastern India.
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Affiliation(s)
- Paramita Chatterjee
- Department of Physics, Jadavpur University, Kolkata 700032, India; Department of Physics, Lady Brabourne College, Kolkata 700017, India
| | - Arup Chakraborty
- Department of Community Medicine, Medical College, Kolkata 700073, India
| | - Alok K Mukherjee
- Department of Physics, Jadavpur University, Kolkata 700032, India.
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Solid Phases Precipitating in Artificial Urine in the Absence and Presence of Bacteria Proteus mirabilis—A Contribution to the Understanding of Infectious Urinary Stone Formation. CRYSTALS 2018. [DOI: 10.3390/cryst8040164] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Tansel B, Lunn G, Monje O. Struvite formation and decomposition characteristics for ammonia and phosphorus recovery: A review of magnesium-ammonia-phosphate interactions. CHEMOSPHERE 2018; 194:504-514. [PMID: 29241124 DOI: 10.1016/j.chemosphere.2017.12.004] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 10/31/2017] [Accepted: 12/02/2017] [Indexed: 05/10/2023]
Abstract
Struvite (MgNH4PO4·6H2O) forms in aqueous systems with high ammonia and phosphate concentrations. However, conditions that result into struvite formation are highly dependent on the ionic compositions, temperature, pH, and ion speciation characteristics. The primary ions involved in struvite formation have complex interactions and can form different crystals depending on the ionic levels, pH and temperature. Struvite as well as struvite analogues (with substitution of monovalent cations for NH4+ or divalent cations for Mg2+) as well as other crystals can form simultaneously and result in changes in crystal morphology during crystal growth. This review provides the results from experimental and theoretical studies on struvite formation and decomposition studies. Characteristics of NH4+ or divalent cations for Mg2+ were evaluated in comparison to monovalent and divalent ions for formation of struvite and its analogues. Struvite crystals forming in wastewater systems are likely to contain crystals other than struvite due to ionic interactions, pH changes, temperature effects and clustering of ions during nucleation and crystal growth. Decomposition of struvite occurs following a series of reactions depending on the rate of heating, temperature and availability of water during heating.
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Affiliation(s)
- Berrin Tansel
- Florida International University, Civil and Environmental Engineering Department, Miami, FL, USA.
| | - Griffin Lunn
- Vencore Services and Solutions, Inc., Kennedy Space Center, FL, USA
| | - Oscar Monje
- Vencore Services and Solutions, Inc., Kennedy Space Center, FL, USA
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Evaluation of Biofilm Induced Urinary Infection Stone Formation in a Novel Laboratory Model System. J Urol 2018; 199:178-185. [DOI: 10.1016/j.juro.2017.08.083] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2017] [Indexed: 11/23/2022]
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Merino-Jimenez I, Celorrio V, Fermin DJ, Greenman J, Ieropoulos I. Enhanced MFC power production and struvite recovery by the addition of sea salts to urine. WATER RESEARCH 2017; 109:46-53. [PMID: 27866103 PMCID: PMC5234473 DOI: 10.1016/j.watres.2016.11.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/01/2016] [Accepted: 11/03/2016] [Indexed: 05/09/2023]
Abstract
Urine is an excellent fuel for electricity generation in Microbial Fuel Cells (MFCs), especially with practical implementations in mind. Moreover, urine has a high content in nutrients which can be easily recovered. Struvite (MgNH4PO4·6H2O) crystals naturally precipitate in urine, but this reaction can be enhanced by the introduction of additional magnesium. In this work, the effect of magnesium additives on the power output of the MFCs and on the catholyte generation is evaluated. Several magnesium sources including MgCl2, artificial sea water and a commercially available sea salts mixture for seawater preparation (SeaMix) were mixed with real fresh human urine in order to enhance struvite precipitation. The supernatant of each mixture was tested as a feedstock for the MFCs and it was evaluated in terms of power output and catholyte generation. The commercial SeaMix showed the best performance in terms of struvite precipitation, increasing the amount of struvite in the solid collected from 21% to 94%. Moreover, the SeaMix increased the maximum power performance of the MFCs by over 10% and it also changed the properties of the catholyte collected by increasing the pH, conductivity and the concentration of chloride ions. These results demonstrate that the addition of sea-salts to real urine is beneficial for both struvite recovery and electricity generation in MFCs.
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Affiliation(s)
- Irene Merino-Jimenez
- Bristol BioEnergy Centre, Bristol Robotics Laboratory, University of the West of England, BS16 1QY, UK.
| | - Veronica Celorrio
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - David J Fermin
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - John Greenman
- Bristol BioEnergy Centre, Bristol Robotics Laboratory, University of the West of England, BS16 1QY, UK; Biological, Biomedical and Analytical Sciences, University of the West of England, BS16 1QY, UK
| | - Ioannis Ieropoulos
- Bristol BioEnergy Centre, Bristol Robotics Laboratory, University of the West of England, BS16 1QY, UK; Biological, Biomedical and Analytical Sciences, University of the West of England, BS16 1QY, UK.
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34
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Combining field effect scanning electron microscopy, deep UV fluorescence, Raman, classical and synchrotron radiation Fourier transform Infra-Red Spectroscopy in the study of crystal-containing kidney biopsies. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.03.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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35
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36
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Poulard C, Dessombz A, Daudon M, Bazin D. Duration of JJ stent in situ is critical: An ultrastructural and mechanical investigation. CR CHIM 2016. [DOI: 10.1016/j.crci.2016.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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Dessombz A, Coulibaly G, Kirakoya B, Ouedraogo RW, Lengani A, Rouziere S, Weil R, Picaut L, Bonhomme C, Babonneau F, Bazin D, Daudon M. Structural elucidation of silica present in kidney stones coming from Burkina Faso. CR CHIM 2016. [DOI: 10.1016/j.crci.2016.06.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Li X, Lu N, Brady HR, Packman AI. Biomineralization strongly modulates the formation ofProteus mirabilisandPseudomonas aeruginosadual-species biofilms. FEMS Microbiol Ecol 2016; 92:fiw189. [DOI: 10.1093/femsec/fiw189] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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39
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Grela E, Dziełak A, Szydłowska K, Mucha A, Kafarski P, Grabowiecka AM. Whole-cell Proteus mirabilis urease inhibition by aminophosphinates for the control of struvite formation. J Med Microbiol 2016; 65:1123-1129. [PMID: 27550502 DOI: 10.1099/jmm.0.000342] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The study evaluated the in vitro impact of a series of aminophosphinic urease inhibitors on Proteusmirabilis. The group of compounds comprised structurally diverse analogues of diamidophosphate built on an N-C-P scaffold. The influence of urease inhibition on urea-splitting activity was assessed by whole-cell pH-static kinetic measurements. The potential to prevent struvite formation was determined by monitoring changes in pH and ionic composition of artificial urine medium during P. mirabilis growth. The most active compounds exhibited stronger positive effect on urine stability than the acknowledged inhibitor acetohydroxamic acid. The high anti-ureolytic and pH-stabilizing effect of urease inhibitors 4 and 14 was well correlated with their reported kinetic properties against pure urease from P. mirabilis (Ki values of 0.62±0.09 and 0.202±0.057 µM, respectively, compared to 5.7±0.4 µM for acetohydroxamic acid). The effect of repressed ureolysis upon the viability of Proteus cells was studied using MTT [3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide] metabolic efficiency assay and LIVE/DEAD fluorescent staining. Most of the compounds caused whole-cell dehydrogenase activity loss; four structures (1, 2, 4 and 14) reduced the culture viability by nearly 70 % at 1 mM concentration. Results of dual fluorescent staining suggested that besides urea-splitting prevention, the structures additionally exerted an outer-membrane-destabilizing effect.
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Affiliation(s)
- Ewa Grela
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
| | - Anna Dziełak
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
| | - Katarzyna Szydłowska
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
| | - Artur Mucha
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
| | - Paweł Kafarski
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
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Vol’khin VV, Kazakov DA, Leont’eva GV, Andreeva YV, Nosenko EA, Siluyanova MY. Synthesis of struvite (MgNH4PO4·6H2O) and its use for sorption of nickel ions. RUSS J APPL CHEM+ 2016. [DOI: 10.1134/s10704272150120149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Prywer J, Olszynski M, Mielniczek-Brzóska E. Inhibition of precipitation of carbonate apatite by trisodium citrate analysed in base of the formation of chemical complexes in growth solution. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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43
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Biomimetic synthesis of struvite with biogenic morphology and implication for pathological biomineralization. Sci Rep 2015; 5:7718. [PMID: 25591814 PMCID: PMC4296295 DOI: 10.1038/srep07718] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 12/09/2014] [Indexed: 02/07/2023] Open
Abstract
Recent studies have found that certain urinary proteins can efficiently inhibit stone formation. These discoveries are significant for developing effective therapies for stone disease, but the inhibition mechanism of crystallization remains elusive. In the present study, polyaspartic acid (PASP) was employed as a model peptide to investigate the effect of urinary proteins on the crystallization and morphological evolution of struvite. The results demonstrate that selective adsorption/binding of PASP onto the {010} and {101} faces of struvite crystals results in arrowhead-shaped morphology, which further evolves into X-shaped and unusual tabular structures with time. Noticeably, these morphologies are reminiscent of biogenic struvite morphology. Concentration-dependent experiments show that PASP can inhibit struvite growth and the inhibitory capacity increases with increasing PASP concentration, whereas aspartic acid monomers do not show a significant effect. Considering that PASP is a structural and functional analogue of the subdomains of aspartic acid-rich proteins, our results reveal that aspartic acid-rich proteins play a key role in regulating biogenic struvite morphology, and aspartic acid residues contribute to the inhibitory capacity of urinary proteins. The potential implications of PASP for developing therapeutic agents for urinary stone disease is also discussed.
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44
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Sadowski RR, Prywer J, Torzewska A. Morphology of struvite crystals as an evidence of bacteria mediated growth. CRYSTAL RESEARCH AND TECHNOLOGY 2014. [DOI: 10.1002/crat.201400080] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rafal R. Sadowski
- Institute of Physics; Lodz University of Technology; ul. Wólczańska 219 93-005 Łódź Poland
| | - Jolanta Prywer
- Institute of Physics; Lodz University of Technology; ul. Wólczańska 219 93-005 Łódź Poland
| | - Agnieszka Torzewska
- Department of Immunobiology of Bacteria; Institute of Microbiology; Biotechnology and Immunology; University of Lodz; ul. Banacha 12/16 90-237 Łódź Poland
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45
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Sinha A, Singh A, Kumar S, Khare SK, Ramanan A. Microbial mineralization of struvite: a promising process to overcome phosphate sequestering crisis. WATER RESEARCH 2014; 54:33-43. [PMID: 24531293 DOI: 10.1016/j.watres.2014.01.039] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 01/16/2014] [Accepted: 01/20/2014] [Indexed: 06/03/2023]
Abstract
Due to extensive exploitation of non-renewable phosphate minerals, their natural reserves will exhaust very soon. This necessitates looking for alternatives and an efficient methodology through which indispensable phosphorus can be harvested back. The current study was undertaken to explore the potential of a metallophilic bacterium Enterobacter sp. EMB19 for the recovery of phosphorus as phosphate rich mineral. A very low phosphate concentration strategy was adopted. The process led to the mineralization of phosphorus as homogeneous struvite crystals. For each gram of Epsom salt added, the cells effectively mineralized about 20% of the salt into struvite. The effect of different inorganic sources, culture profile and plausible mechanism involved in crystal formation was also explored. The synthesized struvite crystals typically possessed a prismatic crystal habit. The characterization and identification of the crystals were done using single crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), energy dispersive X-ray analysis (EDAX) and fourier transform infrared (FTIR). The thermal characteristics were studied using thermo gravimetric analysis (TGA) and differential scanning calorimetric (DSC) processes. The synthesis of struvite by this bacterium seems to be a promising and viable strategy since it serves dual purpose (i) obtaining phosphorus and nitrogen rich fertilizer and (ii) conservation of natural phosphate reserves. This study is very significant in the sense that the process may be used for harvesting and synthesizing other valuable minerals. Also, it will provide new insights into phosphate biomineralization mechanisms.
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Affiliation(s)
- Arvind Sinha
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Amit Singh
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Sumit Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Sunil Kumar Khare
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India.
| | - Arunachalam Ramanan
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
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46
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Bazin D, Haymann JP, Letavernier E, Rode J, Daudon M. Calcifications pathologiques : un diagnostic médical basé sur leurs paramètres physicochimiques. Presse Med 2014; 43:135-48. [DOI: 10.1016/j.lpm.2013.02.333] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 01/28/2013] [Accepted: 02/27/2013] [Indexed: 10/26/2022] Open
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