1
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Everett J, Brooks J, Tjendana Tjhin V, Lermyte F, Hands-Portman I, Plascencia-Villa G, Perry G, Sadler PJ, O’Connor PB, Collingwood JF, Telling ND. Label-Free In Situ Chemical Characterization of Amyloid Plaques in Human Brain Tissues. ACS Chem Neurosci 2024; 15:1469-1483. [PMID: 38501754 PMCID: PMC10995949 DOI: 10.1021/acschemneuro.3c00756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/20/2024] [Accepted: 03/01/2024] [Indexed: 03/20/2024] Open
Abstract
The accumulation of amyloid plaques and increased brain redox burdens are neuropathological hallmarks of Alzheimer's disease. Altered metabolism of essential biometals is another feature of Alzheimer's, with amyloid plaques representing sites of disturbed metal homeostasis. Despite these observations, metal-targeting disease treatments have not been therapeutically effective to date. A better understanding of amyloid plaque composition and the role of the metals associated with them is critical. To establish this knowledge, the ability to resolve chemical variations at nanometer length scales relevant to biology is essential. Here, we present a methodology for the label-free, nanoscale chemical characterization of amyloid plaques within human Alzheimer's disease tissue using synchrotron X-ray spectromicroscopy. Our approach exploits a C-H carbon absorption feature, consistent with the presence of lipids, to visualize amyloid plaques selectively against the tissue background, allowing chemical analysis to be performed without the addition of amyloid dyes that alter the native sample chemistry. Using this approach, we show that amyloid plaques contain elevated levels of calcium, carbonates, and iron compared to the surrounding brain tissue. Chemical analysis of iron within plaques revealed the presence of chemically reduced, low-oxidation-state phases, including ferromagnetic metallic iron. The zero-oxidation state of ferromagnetic iron determines its high chemical reactivity and so may contribute to the redox burden in the Alzheimer's brain and thus drive neurodegeneration. Ferromagnetic metallic iron has no established physiological function in the brain and may represent a target for therapies designed to lower redox burdens in Alzheimer's disease. Additionally, ferromagnetic metallic iron has magnetic properties that are distinct from the iron oxide forms predominant in tissue, which might be exploitable for the in vivo detection of amyloid pathologies using magnetically sensitive imaging. We anticipate that this label-free X-ray imaging approach will provide further insights into the chemical composition of amyloid plaques, facilitating better understanding of how plaques influence the course of Alzheimer's disease.
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Affiliation(s)
- James Everett
- School
of Pharmacy and Bioengineering, Guy Hilton Research Centre, Keele University, Thornburrow Drive,Stoke-on-Trent,Staffordshire ST4 7QB, U.K.
- School
of Engineering, University of Warwick, Library Road,Coventry CV4 7AL, U.K.
| | - Jake Brooks
- School
of Engineering, University of Warwick, Library Road,Coventry CV4 7AL, U.K.
| | - Vindy Tjendana Tjhin
- School
of Engineering, University of Warwick, Library Road,Coventry CV4 7AL, U.K.
| | - Frederik Lermyte
- School
of Engineering, University of Warwick, Library Road,Coventry CV4 7AL, U.K.
- Department
of Chemistry, Technical University of Darmstadt, Alarich-Weiss-Strasse 4, 64287 Darmstadt, Germany
| | - Ian Hands-Portman
- School
of Life Sciences, University of Warwick, Gibbet Hill Campus,Coventry CV4 7AL, U.K.
| | - Germán Plascencia-Villa
- Department
of Developmental and Regenerative Biology, The University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
| | - George Perry
- Department
of Developmental and Regenerative Biology, The University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
| | - Peter J. Sadler
- Department
of Chemistry, University of Warwick, Library Road,Coventry CV4 7AL, U.K.
| | - Peter B. O’Connor
- Department
of Chemistry, University of Warwick, Library Road,Coventry CV4 7AL, U.K.
| | | | - Neil D. Telling
- School
of Pharmacy and Bioengineering, Guy Hilton Research Centre, Keele University, Thornburrow Drive,Stoke-on-Trent,Staffordshire ST4 7QB, U.K.
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2
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Rongpipi S, Barnes WJ, Siemianowski O, Del Mundo JT, Wang C, Freychet G, Zhernenkov M, Anderson CT, Gomez EW, Gomez ED. Measuring calcium content in plants using NEXAFS spectroscopy. FRONTIERS IN PLANT SCIENCE 2023; 14:1212126. [PMID: 37662163 PMCID: PMC10468975 DOI: 10.3389/fpls.2023.1212126] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/20/2023] [Indexed: 09/05/2023]
Abstract
Calcium is important for the growth and development of plants. It serves crucial functions in cell wall and cell membrane structure and serves as a secondary messenger in signaling pathways relevant to nutrient and immunity responses. Thus, measuring calcium levels in plants is important for studies of plant biology and for technology development in food, agriculture, energy, and forest industries. Often, calcium in plants has been measured through techniques such as atomic absorption spectrophotometry (AAS), inductively coupled plasma-mass spectrometry (ICP-MS), and electrophysiology. These techniques, however, require large sample sizes, chemical extraction of samples or have limited spatial resolution. Here, we used near-edge X-ray absorption fine structure (NEXAFS) spectroscopy at the calcium L- and K-edges to measure the calcium to carbon mass ratio with spatial resolution in plant samples without requiring chemical extraction or large sample sizes. We demonstrate that the integrated absorbance at the calcium L-edge and the edge jump in the fluorescence yield at the calcium K-edge can be used to quantify the calcium content as the calcium mass fraction, and validate this approach with onion epidermal peels and ICP-MS. We also used NEXAFS to estimate the calcium mass ratio in hypocotyls of a model plant, Arabidopsis thaliana, which has a cell wall composition that is similar to that of onion epidermal peels. These results show that NEXAFS spectroscopy performed at the calcium edge provides an approach to quantify calcium levels within plants, which is crucial for understanding plant physiology and advancing plant-based materials.
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Affiliation(s)
- Sintu Rongpipi
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, United States
| | - William J. Barnes
- Department of Biology, The Pennsylvania State University, University Park, PA, United States
| | - Oskar Siemianowski
- Department of Biology, The Pennsylvania State University, University Park, PA, United States
| | - Joshua T. Del Mundo
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, United States
| | - Cheng Wang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
| | - Guillaume Freychet
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, United States
| | - Mikhail Zhernenkov
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, United States
| | - Charles T. Anderson
- Department of Biology, The Pennsylvania State University, University Park, PA, United States
| | - Esther W. Gomez
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, United States
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, United States
| | - Enrique D. Gomez
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, United States
- Department of Materials Science and Engineering and Materials Research Institute, The Pennsylvania State University, University Park, PA, United States
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3
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Hsu YH, Hassan A, Trout A, Bartlett JD, Smith CE, Simmer JP, McComb DW. The Characterization of Hydroxyapatite and Octa-calcium Phosphate with Electron Energy Loss Spectroscopy. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2023; 29:1223-1225. [PMID: 37613591 DOI: 10.1093/micmic/ozad067.629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Ya-Hsiang Hsu
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA
| | - Asra Hassan
- Center for Electron Microscopy and Analysis, The Ohio State University, Columbus, OH, USA
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, USA
| | - Amanda Trout
- Center for Electron Microscopy and Analysis, The Ohio State University, Columbus, OH, USA
| | - John D Bartlett
- Division of Biosciences, Ohio State University College of Dentistry, Columbus, OH, USA
| | - Charles E Smith
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, USA
- Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
| | - James P Simmer
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - David W McComb
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA
- Center for Electron Microscopy and Analysis, The Ohio State University, Columbus, OH, USA
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4
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Rowley MC, Nico PS, Bone SE, Marcus MA, Pegoraro EF, Castanha C, Kang K, Bhattacharyya A, Torn MS, Peña J. Association between soil organic carbon and calcium in acidic grassland soils from Point Reyes National Seashore, CA. BIOGEOCHEMISTRY 2023; 165:91-111. [PMID: 37637456 PMCID: PMC10457245 DOI: 10.1007/s10533-023-01059-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 06/14/2023] [Indexed: 08/29/2023]
Abstract
Organo-mineral and organo-metal associations play an important role in the retention and accumulation of soil organic carbon (SOC). Recent studies have demonstrated a positive correlation between calcium (Ca) and SOC content in a range of soil types. However, most of these studies have focused on soils that contain calcium carbonate (pH > 6). To assess the importance of Ca-SOC associations in lower pH soils, we investigated their physical and chemical interaction in the grassland soils of Point Reyes National Seashore (CA, USA) at a range of spatial scales. Multivariate analyses of our bulk soil characterisation dataset showed a strong correlation between exchangeable Ca (CaExch; 5-8.3 c.molc kg-1) and SOC (0.6-4%) content. Additionally, linear combination fitting (LCF) of bulk Ca K-edge X-ray absorption near-edge structure (XANES) spectra revealed that Ca was predominantly associated with organic carbon across all samples. Scanning transmission X-ray microscopy near-edge X-ray absorption fine structure spectroscopy (STXM C/Ca NEXAFS) showed that Ca had a strong spatial correlation with C at the microscale. The STXM C NEXAFS K-edge spectra indicated that SOC had a higher abundance of aromatic/olefinic and phenolic C functional groups when associated with Ca, relative to C associated with Fe. In regions of high Ca-C association, the STXM C NEXAFS spectra were similar to the spectrum from lignin, with moderate changes in peak intensities and positions that are consistent with oxidative C transformation. Through this association, Ca thus seems to be preferentially associated with plant-like organic matter that has undergone some oxidative transformation, at depth in acidic grassland soils of California. Our study highlights the importance of Ca-SOC complexation in acidic grassland soils and provides a conceptual model of its contribution to SOC preservation, a research area that has previously been unexplored. Supplementary Information The online version contains supplementary material available at 10.1007/s10533-023-01059-2.
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Affiliation(s)
- Mike C. Rowley
- Department of Geography, University of Zurich, Zurich, Switzerland
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 USA
- University California Davis, Davis, USA
| | - Peter S. Nico
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 USA
| | - Sharon E. Bone
- Stanford Synchrotron Radiation Lightsource, Menlo Park, USA
| | | | - Elaine F. Pegoraro
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 USA
| | - Cristina Castanha
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 USA
| | | | | | - Margaret S. Torn
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 USA
| | - Jasquelin Peña
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 USA
- University California Davis, Davis, USA
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5
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Rossi F, Picone G, Cappadone C, Sorrentino A, Columbaro M, Farruggia G, Catelli E, Sciutto G, Prati S, Oliete R, Pasini A, Pereiro E, Iotti S, Malucelli E. Shedding Light on Osteosarcoma Cell Differentiation: Impact on Biomineralization and Mitochondria Morphology. Int J Mol Sci 2023; 24:ijms24108559. [PMID: 37239904 DOI: 10.3390/ijms24108559] [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: 04/21/2023] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Osteosarcoma (OS) is the most common primary malignant bone tumor and its etiology has recently been associated with osteogenic differentiation dysfunctions. OS cells keep a capacity for uncontrolled proliferation showing a phenotype similar to undifferentiated osteoprogenitors with abnormal biomineralization. Within this context, both conventional and X-ray synchrotron-based techniques have been exploited to deeply characterize the genesis and evolution of mineral depositions in a human OS cell line (SaOS-2) exposed to an osteogenic cocktail for 4 and 10 days. A partial restoration of the physiological biomineralization, culminating with the formation of hydroxyapatite, was observed at 10 days after treatment together with a mitochondria-driven mechanism for calcium transportation within the cell. Interestingly, during differentiation, mitochondria showed a change in morphology from elongated to rounded, indicating a metabolic reprogramming of OS cells possibly linked to an increase in glycolysis contribution to energy metabolism. These findings add a dowel to the genesis of OS giving new insights on the development of therapeutic strategies able to restore the physiological mineralization in OS cells.
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Affiliation(s)
- Francesca Rossi
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Giovanna Picone
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Andrea Sorrentino
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain
| | - Marta Columbaro
- Piattaforma di Microscopia Elettronica, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy
| | - Emilio Catelli
- Department of Chemistry "G. Ciamician", Università di Bologna, Ravenna Campus, Via Guaccimanni, 42, 48121 Ravenna, Italy
| | - Giorgia Sciutto
- Department of Chemistry "G. Ciamician", Università di Bologna, Ravenna Campus, Via Guaccimanni, 42, 48121 Ravenna, Italy
| | - Silvia Prati
- Department of Chemistry "G. Ciamician", Università di Bologna, Ravenna Campus, Via Guaccimanni, 42, 48121 Ravenna, Italy
| | - Robert Oliete
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain
| | - Alice Pasini
- Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi" (DEI), University of Bologna, Via dell'Università 50, 47522 Cesena, Italy
| | - Eva Pereiro
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
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6
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Besnard C, Marie A, Sasidharan S, Harper RA, Shelton RM, Landini G, Korsunsky AM. Synchrotron X-ray Studies of the Structural and Functional Hierarchies in Mineralised Human Dental Enamel: A State-of-the-Art Review. Dent J (Basel) 2023; 11:98. [PMID: 37185477 PMCID: PMC10137518 DOI: 10.3390/dj11040098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/19/2023] [Accepted: 03/28/2023] [Indexed: 05/17/2023] Open
Abstract
Hard dental tissues possess a complex hierarchical structure that is particularly evident in enamel, the most mineralised substance in the human body. Its complex and interlinked organisation at the Ångstrom (crystal lattice), nano-, micro-, and macro-scales is the result of evolutionary optimisation for mechanical and functional performance: hardness and stiffness, fracture toughness, thermal, and chemical resistance. Understanding the physical-chemical-structural relationships at each scale requires the application of appropriately sensitive and resolving probes. Synchrotron X-ray techniques offer the possibility to progress significantly beyond the capabilities of conventional laboratory instruments, i.e., X-ray diffractometers, and electron and atomic force microscopes. The last few decades have witnessed the accumulation of results obtained from X-ray scattering (diffraction), spectroscopy (including polarisation analysis), and imaging (including ptychography and tomography). The current article presents a multi-disciplinary review of nearly 40 years of discoveries and advancements, primarily pertaining to the study of enamel and its demineralisation (caries), but also linked to the investigations of other mineralised tissues such as dentine, bone, etc. The modelling approaches informed by these observations are also overviewed. The strategic aim of the present review was to identify and evaluate prospective avenues for analysing dental tissues and developing treatments and prophylaxis for improved dental health.
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Affiliation(s)
- Cyril Besnard
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, Oxfordshire, UK
| | - Ali Marie
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, Oxfordshire, UK
| | - Sisini Sasidharan
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, Oxfordshire, UK
| | - Robert A. Harper
- School of Dentistry, University of Birmingham, 5 Mill Pool Way, Edgbaston, Birmingham B5 7EG, West Midlands, UK
| | - Richard M. Shelton
- School of Dentistry, University of Birmingham, 5 Mill Pool Way, Edgbaston, Birmingham B5 7EG, West Midlands, UK
| | - Gabriel Landini
- School of Dentistry, University of Birmingham, 5 Mill Pool Way, Edgbaston, Birmingham B5 7EG, West Midlands, UK
| | - Alexander M. Korsunsky
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, Oxfordshire, UK
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7
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Stanton C, Barnes BD, Kump LR, Cosmidis J. A re-examination of the mechanism of whiting events: A new role for diatoms in Fayetteville Green Lake (New York, USA). GEOBIOLOGY 2023; 21:210-228. [PMID: 36326137 PMCID: PMC10092686 DOI: 10.1111/gbi.12534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/24/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Whiting events-the episodic precipitation of fine-grained suspended calcium carbonates in the water column-have been documented across a variety of marine and lacustrine environments. Whitings likely are a major source of carbonate muds, a constituent of limestones, and important archives for geochemical proxies of Earth history. While several biological and physical mechanisms have been proposed to explain the onset of these precipitation events, no consensus has been reached thus far. Fayetteville Green Lake (New York, USA) is a meromictic lake that experiences annual whitings. Materials suspended in the water column collected through the whiting season were characterized using scanning electron microscopy and scanning transmission X-ray microscopy. Whitings in Fayetteville Green Lake are initiated in the spring within the top few meters of the water column, by precipitation of fine amorphous calcium carbonate (ACC) phases nucleating on microbial cells, as well as on abundant extracellular polymeric substances (EPS) frequently associated with centric diatoms. Whiting particles found in the summer consist of 5-7 μm calcite grains forming aggregates with diatoms and EPS. Simple calculations demonstrate that calcite particles continuously grow over several days, then sink quickly through the water column. In the late summer, partial calcium carbonate dissolution is observed deeper in the water column. Settling whiting particles, however, reach the bottom of the lake, where they form a major constituent of the sediment, along with diatom frustules. The role of diatoms and associated EPS acting as nucleation surfaces for calcium carbonates is described for the first time here as a potential mechanism participating in whitings at Fayetteville Green Lake. This mechanism may have been largely overlooked in other whiting events in modern and ancient environments.
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Affiliation(s)
- Chloe Stanton
- Department of GeosciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Ben Davis Barnes
- Department of GeosciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Lee R. Kump
- Department of GeosciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
- Earth and Environmental Systems InstituteThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Julie Cosmidis
- Department of GeosciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
- Earth and Environmental Systems InstituteThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
- Present address:
Department of Earth SciencesUniversity of OxfordOxfordUK
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8
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de Frutos M, Rodríguez-Navarro AB, Li X, Checa AG. Nanoscale Analysis of the Structure and Composition of Biogenic Calcite Reveals the Biomineral Growth Pattern. ACS NANO 2023; 17:2829-2839. [PMID: 36696398 DOI: 10.1021/acsnano.2c11169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The vast majority of calcium carbonate biocrystals differ from inorganic crystals in that they display a patent nanoroughness consisting of lumps of crystalline material (calcite/aragonite) surrounded by amorphous pellicles. Scanning transmission electron microscopy coupled with electron energy loss spectroscopy (STEM-EELS) was used to map the calcite secreted by a barnacle chemically and structurally with ultrahigh resolution (down to 1 nm). The material is composed of irregular lumps of calcite (up to two hundred nm in diameter) surrounded by relatively continuous cortexes (up to 20 nm thick) of amorphous calcium carbonate (ACC) and/or nanocalcite plus biomolecules, with a surplus of calcium relative to carbonate. We develop a model by which the separation of the crystalline and amorphous phases takes place upon crystallization of the calcite from a precursor ACC. The organic biomolecules are expelled from the crystal lattice and concentrate in the form of pellicles, where they stabilize minor amounts of ACC/nanocalcite. In this way, we change the previously established conception of biomineral structure and growth.
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Affiliation(s)
- Marta de Frutos
- Laboratoire de Physique des Solides (LPS), CNRS UMR 8502, Université Paris-Saclay, F-91405 Orsay, France
| | | | - Xiaoyan Li
- Laboratoire de Physique des Solides (LPS), CNRS UMR 8502, Université Paris-Saclay, F-91405 Orsay, France
| | - Antonio G Checa
- Departamento de Estratigrafía y Paleontología, Universidad de Granada, ES-18071 Granada, Spain
- Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada, 18100 Armilla, Spain
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9
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Bazin D, Reguer S, Vantelon D, Haymann JP, Letavernier E, Frochot V, Daudon M, Esteve E, Colboc H. XANES spectroscopy for the clinician. CR CHIM 2022. [DOI: 10.5802/crchim.129] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Liu J, Willick IR, Hiraki H, Forand AD, Lawrence JR, Swerhone GDW, Wei Y, Ghosh S, Lee YK, Olsen JE, Usadel B, Wormit A, Günl M, Karunakaran C, Dynes JJ, Tanino KK. Cold and exogenous calcium alter Allium fistulosum cell wall pectin to depress intracellular freezing temperatures. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:3807-3822. [PMID: 35298622 DOI: 10.1093/jxb/erac108] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
De-methyl esterification of homogalacturonan and subsequent cross-linking with Ca2+ is hypothesized to enhance the freezing survival of cold acclimated plants by reducing the porosity of primary cell walls. To test this theory, we collected leaf epidermal peels from non- (23/18 °C) and cold acclimated (2 weeks at 12/4 °C) Japanese bunching onion (Allium fistulosum L.). Cold acclimation enhanced the temperature at which half the cells survived freezing injury by 8 °C (LT50 =-20 °C), and reduced tissue permeability by 70-fold compared with non-acclimated epidermal cells. These effects were associated with greater activity of pectin methylesterase (PME) and a reduction in the methyl esterification of homogalacturonan. Non-acclimated plants treated with 50 mM CaCl2 accumulated higher concentrations of galacturonic acid, Ca2+ in the cell wall, and a lower number of visible cell wall pores compared with that observed in cold acclimated plants. Using cryo-microscopy, we observed that 50 mM CaCl2 treatment did not lower the LT50 of non-acclimated cells, but reduced the lethal intracellular ice nucleation to temperatures observed in cold acclimated epidermal cells. We postulate that the PME-homogalacturonan-mediated reduction in cell wall porosity is integral to intracellular freezing avoidance strategies in cold acclimated herbaceous cells.
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Affiliation(s)
- Jun Liu
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ian R Willick
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Hayato Hiraki
- The United Graduate School of Agricultural Sciences, Iwate University, Morioka, Japan
| | - Ariana D Forand
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - John R Lawrence
- Watershed Hydrology and Ecology Research Division, Environment and Climate Change Canada, Saskatoon, SK, Canada
| | - George D W Swerhone
- Watershed Hydrology and Ecology Research Division, Environment and Climate Change Canada, Saskatoon, SK, Canada
| | - Yangdou Wei
- Biology Department, University of Saskatchewan, Saskatoon, SK, Canada
| | - Supratim Ghosh
- Department of Food and Bioproducts Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Yeon Kyeong Lee
- Department of Plant Sciences, Faculty of BioSciences, Norwegian University of Life Sciences, Ås, Norway
| | - Jorunn E Olsen
- Department of Plant Sciences, Faculty of BioSciences, Norwegian University of Life Sciences, Ås, Norway
| | - Björn Usadel
- RWTH Aachen University, Institute for Biology I, Aachen, Germany
- IBG-2: Plant Sciences, Forschungszentrum Jülich, Germany
| | - Alexandra Wormit
- RWTH Aachen University, Institute for Biology I, Aachen, Germany
| | - Markus Günl
- IBG-2: Plant Sciences, Forschungszentrum Jülich, Germany
| | | | | | - Karen K Tanino
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, SK, Canada
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11
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Nabeh N, Brokaw C, Picard A. Quantification of Organic Carbon Sequestered by Biogenic Iron Sulfide Minerals in Long-Term Anoxic Laboratory Incubations. Front Microbiol 2022; 13:662219. [PMID: 35572660 PMCID: PMC9093744 DOI: 10.3389/fmicb.2022.662219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/29/2022] [Indexed: 11/13/2022] Open
Abstract
Organic carbon sequestration in sedimentary environments controls oxygen and carbon dioxide concentrations in the atmosphere. While minerals play an important role in the preservation of organic carbon, there is a lack of understanding about the formation and stability of organo-mineral interactions in anoxic environments, especially those involving authigenic iron sulfide minerals. In this study, we quantified organic carbon and nitrogen sequestered in biogenic iron sulfide minerals co-precipitated with sulfate-reducing bacteria (SRB) in freshwater and marine conditions in long-term laboratory experiments. The amounts of C and N associated with biogenic iron sulfide minerals increased with increasing cell biomass concentrations available in the media. C and N levels stabilized over the first 2 months of incubation and remained stable for up to 1 year. Crystalline mackinawite (FeS) formed in all experimental conditions and transformed to greigite only in some experimental conditions. We did not find evidence that this mineral transformation affected C and N levels, neither could we identify the factors that controlled greigite formation. Pyrite did not form in our experimental conditions. While C concentrations in minerals correlated with concentrations of reduced sulfate in both the freshwater and marine media, removal of OC by iron sulfide minerals was more efficient in freshwater than marine conditions. Removal of OC by iron sulfide minerals was also more efficient when cells were present (SRB biomass) in comparison with abiotic incubations with organic mixtures (e.g., tryptone, yeast extract, and casamino acids). Our study highlights the potential for biogenic iron sulfide minerals to quantitatively contribute to organic carbon preservation in anoxic environments.
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Affiliation(s)
- Nader Nabeh
- School of Life Sciences, University of Nevada, Las Vegas, Las Vegas, NV, United States
| | - Cheyenne Brokaw
- School of Life Sciences, University of Nevada, Las Vegas, Las Vegas, NV, United States
| | - Aude Picard
- School of Life Sciences, University of Nevada, Las Vegas, Las Vegas, NV, United States
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12
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Mendoza M, Chen MH, Huang P, Mahler GJ. Shear and endothelial induced late-stage calcific aortic valve disease-on-a-chip develops calcium phosphate mineralizations. LAB ON A CHIP 2022; 22:1374-1385. [PMID: 35234762 DOI: 10.1039/d1lc00931a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Calcific aortic valve disease (CAVD) is an active pathobiological process leading to severe aortic stenosis, where the only treatment is valve replacement. Late-stage CAVD is characterized by calcification, disorganization of collagen, and deposition of glycosaminoglycans, such as chondroitin sulfate (CS), in the fibrosa. We developed a three-dimensional microfluidic device of the aortic valve fibrosa to study the effects of shear stress (1 or 20 dyne per cm2), CS (1 or 20 mg mL-1), and endothelial cell presence on calcification. CAVD chips consisted of a collagen I hydrogel, where porcine aortic valve interstitial cells were embedded within and porcine aortic valve endothelial cells were seeded on top of the matrix for up to 21 days. Here, we show that this CAVD-on-a-chip is the first to develop human-like calcified nodules varying in calcium phosphate mineralization maturity resulting from high shear and endothelial cells, specifically di- and octa-calcium phosphates. Long-term co-culture microfluidic studies confirmed cell viability and calcium phosphate formations throughout 21 days. Given that CAVD has no targeted therapies, the creation of a physiologically relevant test-bed of the aortic valve could lead to advances in preclinical studies.
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Affiliation(s)
- Melissa Mendoza
- Department of Biomedical Engineering, Binghamton University, P.O Box 6000, Binghamton, NY, 13902, USA.
| | - Mei-Hsiu Chen
- Department of Mathematical Sciences, Binghamton University, Binghamton, NY, 13902, USA
| | - Peter Huang
- Department of Mechanical Engineering, Binghamton University, Binghamton, NY, 13902, USA
| | - Gretchen J Mahler
- Department of Biomedical Engineering, Binghamton University, P.O Box 6000, Binghamton, NY, 13902, USA.
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Su T, Zheng A, Cao L, Peng L, Wang X, Wang J, Xin X, Jiang X. Adhesion-enhancing coating embedded with osteogenesis-promoting PDA/HA nanoparticles for peri-implant soft tissue sealing and osseointegration. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00184-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Shin J, Park S, Trinh TX, Kwon SJ, Bae J, Lee H, Valsami-Jones E, Wang J, Song J, Yoon TH. Scanning transmission X-ray microscopy study of subcellular granules in human platelets at the carbon K- and calcium L2,3-edges. Platelets 2021; 33:632-639. [PMID: 34904525 DOI: 10.1080/09537104.2021.1981846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Platelets and their subcellular components (e.g., dense granules) are essential components in hemostasis. Understanding their chemical heterogeneities at the sub-micrometer scale, particularly their activation during hemostasis and production of platelet-derived extracellular vesicles, may provide important insights into their mechanisms; however, this has rarely been investigated, mainly owing to the lack of appropriate chemical characterization tools at nanometer scale. Here, the use of scanning transmission X-ray microscopy (STXM) combined with X-ray absorption near edge structure (XANES) to characterize human platelets and their subcellular components at the carbon K-edge and calcium L2,3-edge, is reported. STXM images can identify not only the spatial distribution of subcellular components in human platelets, such as dense granules (DGs) with sizes of ~200 nm, but also their granule-to-granule chemical heterogeneities on the sub-micrometer scale, based on their XANES spectra. The calcium distribution map as well as the principal component analysis of the STXM image stacks clearly identified the numbers and locations of the calcium-rich DGs within human platelets. Deconvolution of the carbon K-edge XANES spectra, extracted from various locations in the platelets, showed that amide carbonyl and carboxylic acid functional groups were mainly found in the cytoplasm, while ketone-phenol-nitrile-imine, aliphatic, and carbonate functional groups were dominant in the platelet DGs. These observations suggest that platelet DGs are most likely composed of calcium polyphosphate associated with adenosine triphosphate (ATP) and adenosine diphosphate (ADP), with significant granule-to-granule variations in their compositions, while the cytoplasm regions of platelets contain significant amounts of proteins.
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Affiliation(s)
- Jeonghee Shin
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Sehee Park
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Tung X Trinh
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Sook Jin Kwon
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea.,Institute of Next Generation Material Design, Hanyang University, Seoul, Republic of Korea
| | - Jiwon Bae
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Hangil Lee
- Department of Chemistry, Sookmyung Women's University, Seoul, Republic of Korea
| | - Eugenia Valsami-Jones
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - Jian Wang
- Canadian Light Source, University of Saskatchewan, Saskatoon, Canada
| | - Jaewoo Song
- Department of Laboratory Medicine, College of Medicine, Yonsei University, Seoul Republic of Korea
| | - Tae Hyun Yoon
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea.,Institute of Next Generation Material Design, Hanyang University, Seoul, Republic of Korea
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Raman and XANES Spectroscopic Study of the Influence of Coordination Atomic and Molecular Environments in Biomimetic Composite Materials Integrated with Dental Tissue. NANOMATERIALS 2021; 11:nano11113099. [PMID: 34835863 PMCID: PMC8625886 DOI: 10.3390/nano11113099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 12/18/2022]
Abstract
In this work, for the first time, the influence of the coordination environment as well as Ca and P atomic states on biomimetic composites integrated with dental tissue was investigated. Bioinspired dental composites were synthesised based on nanocrystalline calcium carbonate-substituted hydroxyapatite Ca4ICa6IIPO46−xCO3x+yOH2−y (nano-cHAp) obtained from a biogenic source and a set of polar amino acids that modelled the organic matrix. Biomimetic composites, as well as natural dental tissue samples, were investigated using Raman spectromicroscopy and synchrotron X-ray absorption near edge structure (XANES) spectroscopy. Molecular structure and energy structure studies revealed several important features related to the different calcium atomic environments. It was shown that biomimetic composites created in order to reproduce the physicochemical properties of dental tissue provide good imitation of molecular and electron energetic properties, including the carbonate anion CO32− and the atomic Ca/P ratio in nanocrystals. The features of the molecular structure of biomimetic composites are inherited from the nano-cHAp (to a greater extent) and the amino acid cocktail used for their creation, and are caused by the ratio between the mineral and organic components, which is similar to the composition of natural enamel and dentine. In this case, violation of the nano-cHAp stoichiometry, which is the mineral basis of the natural and bioinspired composites, as well as the inclusion of different molecular groups in the nano-cHAp lattice, do not affect the coordination environment of phosphorus atoms. The differences observed in the molecular and electron energetic structures of the natural enamel and dentine and the imitation of their properties by biomimetic materials are caused by rearrangement in the local environment of the calcium atoms in the HAp crystal lattice. The surface of the nano-cHAp crystals in the natural enamel and dentine involved in the formation of bonds with the organic matrix is characterised by the coordination environment of the calcium atom, corresponding to its location in the CaI position—that is, bound through common oxygen atoms with PO4 tetrahedrons. At the same time, on the surface of nano-cHAp crystals in bioinspired dental materials, the calcium atom is characteristically located in the CaII position, bound to the hydroxyl OH group. The features detected in the atomic and molecular coordination environment in nano-cHAp play a fundamental role in recreating a biomimetic dental composite of the natural organomineral interaction in mineralised tissue and will help to find an optimal way to integrate the dental biocomposite with natural tissue.
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A Novel Magnetotactic Alphaproteobacterium Producing Intracellular Magnetite and Calcium-Bearing Minerals. Appl Environ Microbiol 2021; 87:e0155621. [PMID: 34756060 DOI: 10.1128/aem.01556-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Magnetotactic bacteria (MTB) are prokaryotes that form intracellular magnetite (Fe3O4) or greigite (Fe3S4) nanocrystals with tailored sizes, often in chain configurations. Such magnetic particles are each surrounded by a lipid bilayer membrane, called a magnetosome, and provide a model system for studying the formation and function of specialized internal structures in prokaryotes. Using fluorescence-coupled scanning electron microscopy, we identified a novel magnetotactic spirillum, XQGS-1, from freshwater Xingqinggong Lake, Xi'an City, Shaanxi Province, China. Phylogenetic analyses based on 16S rRNA gene sequences indicate that strain XQGS-1 represents a novel genus of the Alphaproteobacteria class in the Proteobacteria phylum. Transmission electron microscopy analyses reveal that strain XQGS-1 forms on average 17 ± 3 magnetite magnetosome particles with an ideal truncated octahedral morphology, with an average length and width of 88.3 ± 11.7 nm and 83.3 ± 11.0 nm, respectively. They are tightly organized into a single chain along the cell long axis close to the concave side of the cell. Intrachain magnetic interactions likely result in these large equidimensional magnetite crystals behaving as magnetically stable single-domain particles that enable bacterial magnetotaxis. Combined structural and chemical analyses demonstrate that XQGS-1 cells also biomineralize intracellular amorphous calcium phosphate (2 to 3 granules per cell; 90.5- ± 19.3-nm average size) and weakly crystalline calcium carbonate (2 to 3 granules per cell; 100.4- ± 21.4-nm average size) in addition to magnetite. Our results expand the taxonomic diversity of MTB and provide evidence for intracellular calcium phosphate biomineralization in MTB. IMPORTANCE Biomineralization is a widespread process in eukaryotes that form shells, teeth, or bones. It also occurs commonly in prokaryotes, resulting in more than 60 known minerals formed by different bacteria under wide-ranging conditions. Among them, magnetotactic bacteria (MTB) are remarkable because they might represent the earliest organisms that biomineralize intracellular magnetic iron minerals (i.e., magnetite [Fe3O4] or greigite [Fe3S4]). Here, we report a novel magnetotactic spirillum (XQGS-1) that is phylogenetically affiliated with the Alphaproteobacteria class. In addition to magnetite crystals, XQGS-1 cells form intracellular submicrometer calcium carbonate and calcium phosphate granules. This finding supports the view that MTB are also an important microbial group for intracellular calcium carbonate and calcium phosphate biomineralization.
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Awad K, Boyes NG, Iqbal R, Ahmed M, Mohamed A, Aswath P, Tomczak CR, Varanasi V. Hepatocyte growth factor administration increases bone soluble phosphate and alters bone chemical structure in diabetic hypertensive rats. JOURNAL OF MATERIALS RESEARCH 2021; 36:3936-3951. [PMID: 34992330 PMCID: PMC8725793 DOI: 10.1557/s43578-021-00300-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 07/06/2021] [Indexed: 06/14/2023]
Abstract
Hepatocyte growth factor (HGF) is a novel potential therapy for improving bone health in patients with type II diabetes and hypertension, but its effect on the bone molecular structure is not revealed yet. Here, X-ray absorption near edge structure (XANES) spectroscopy was used to explore the effects elicited by HGF on the bone chemical structure. This study assessed local calcium (Ca) and phosphorus (P) coordination of diabetic hypertensive rat bones, each with and without HGF treatment. Results revealed that HGF has significant effects on Ca and P coordination chemistry as confirmed by presence of more soluble phosphates in the HGT-treated groups. Data indicated that treated bones have a poorly developed phosphate structure as evidenced by drastic drop in post-edge shoulder in P L2,3-edge compared to diabetic hypertensive and diabetic control bone. Presence of soluble Ca and P, products of bone resorption, with HGF treatment suggests unbalanced bone resorption and formation.
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Affiliation(s)
- Kamal Awad
- Department of Materials Science and Engineering, College of Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas At Arlington, 655 W. Mitchell St., Box 19410, Arlington, TX 76019, USA
- Department of Ceramics and Building Materials, National Research Center, Dokki, Cairo 12622, Egypt
| | - Natasha G. Boyes
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ramlah Iqbal
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
- Departments of Anatomy, Physiology, and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Mohamed Ahmed
- Departments of Anatomy, Physiology, and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Adel Mohamed
- Departments of Anatomy, Physiology, and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Pranesh Aswath
- Department of Materials Science and Engineering, College of Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Corey R. Tomczak
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Venu Varanasi
- Department of Materials Science and Engineering, College of Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas At Arlington, 655 W. Mitchell St., Box 19410, Arlington, TX 76019, USA
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Dela Piccolla C, Hesterberg D, Muraoka T, Novotny EH. Optimizing pyrolysis conditions for recycling pig bones into phosphate fertilizer. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 131:249-257. [PMID: 34174561 DOI: 10.1016/j.wasman.2021.06.012] [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: 11/29/2020] [Revised: 06/01/2021] [Accepted: 06/13/2021] [Indexed: 06/13/2023]
Abstract
Selecting pyrolysis parameters for recycling P-rich and hazardous biowastes, such as bones, into fertilizers is still a challenge. Our objective was to improve pyrolysis procedures of pig bones for the production of P fertilizers. Bone chars were produced by pyrolysis at 400, 550, or 800 °C with no gas addition; 550 and 800 °C under N2; 800 °C under steam flux, using calcination at 800 °C as control treatment. Synchrotron-based X-ray diffraction and X-ray absorption near edge structure spectroscopy at the P and Ca K- and L-edges showed that these bone chars were largely composed of hydroxyapatite. Hydroxyapatite crystallization was inhibited by pyrolysis conducted in the absence of oxygen at 400, 550, or 800 °C, either under no gas or under N2 flux. The clogging of pores by lack of organic compounds removal was hypothesized to cause low surface area of 400 °C bone char, resulting in a fertilizer with citric-acid soluble P as low as calcination, while 550 and 800 °C bone chars obtained in absence of oxygen showed greater porosity, surface area, and citric acid-soluble P than steamed or calcined samples at 800 °C. Although extractable phosphate in water and neutral-ammonium-citrate showed trends comparable to those from citric acid, it was negligible for all heated materials. Since it is possible to produce bone chars with different chemical, physical and crystallographic properties by managing pyrolysis conditions, bone chars can be designed to increase their suitability as P fertilizers for different purposes, such as high solubility or slow P release.
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Affiliation(s)
- Cristiano Dela Piccolla
- Soil Science Department, Luiz de Queiroz College of Agriculture, University of Sao Paulo, Piracicaba, SP 13418900, Brazil.
| | - Dean Hesterberg
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695, USA.
| | - Takashi Muraoka
- Soil Science Department, Luiz de Queiroz College of Agriculture, University of Sao Paulo, Piracicaba, SP 13418900, Brazil; Center of Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, SP 13416000, Brazil.
| | - Etelvino Henrique Novotny
- Embrapa Soils, Brazilian Agricultural Research Corporation-Embrapa, Rio de Janeiro, RJ 22460000, Brazil.
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Sorrentino A, Malucelli E, Rossi F, Cappadone C, Farruggia G, Moscheni C, Perez-Berna AJ, Conesa JJ, Colletti C, Roveri N, Pereiro E, Iotti S. Calcite as a Precursor of Hydroxyapatite in the Early Biomineralization of Differentiating Human Bone-Marrow Mesenchymal Stem Cells. Int J Mol Sci 2021; 22:ijms22094939. [PMID: 34066542 PMCID: PMC8125725 DOI: 10.3390/ijms22094939] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 02/03/2023] Open
Abstract
Biomineralization is the process by which living organisms generate organized mineral crystals. In human cells, this phenomenon culminates with the formation of hydroxyapatite, which is a naturally occurring mineral form of calcium apatite. The mechanism that explains the genesis within the cell and the propagation of the mineral in the extracellular matrix still remains largely unexplained, and its characterization is highly controversial, especially in humans. In fact, up to now, biomineralization core knowledge has been provided by investigations on the advanced phases of this process. In this study, we characterize the contents of calcium depositions in human bone mesenchymal stem cells exposed to an osteogenic cocktail for 4 and 10 days using synchrotron-based cryo-soft-X-ray tomography and cryo-XANES microscopy. The reported results suggest crystalline calcite as a precursor of hydroxyapatite depositions within the cells in the biomineralization process. In particular, both calcite and hydroxyapatite were detected within the cell during the early phase of osteogenic differentiation. This striking finding may redefine most of the biomineralization models published so far, taking into account that they have been formulated using murine samples while studies in human cell lines are still scarce.
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Affiliation(s)
- Andrea Sorrentino
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain; (A.S.); (A.J.P.-B.); (J.J.C.); (E.P.)
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
- Correspondence:
| | - Francesca Rossi
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
| | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
- National Institute of Biostructures and Biosystems, 00136 Rome, Italy
| | - Claudia Moscheni
- Department of Biomedical and Clinical Sciences “Luigi Sacco”, Università degli Studi di Milano, 20157 Milan, Italy;
| | - Ana J. Perez-Berna
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain; (A.S.); (A.J.P.-B.); (J.J.C.); (E.P.)
| | - Jose Javier Conesa
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain; (A.S.); (A.J.P.-B.); (J.J.C.); (E.P.)
| | - Chiara Colletti
- Chemical Center S.r.l, Granarolo dell’ Emilia, 40057 Bologna, Italy; (C.C.); (N.R.)
| | - Norberto Roveri
- Chemical Center S.r.l, Granarolo dell’ Emilia, 40057 Bologna, Italy; (C.C.); (N.R.)
| | - Eva Pereiro
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain; (A.S.); (A.J.P.-B.); (J.J.C.); (E.P.)
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
- National Institute of Biostructures and Biosystems, 00136 Rome, Italy
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Picard A, Gartman A, Girguis PR. Interactions Between Iron Sulfide Minerals and Organic Carbon: Implications for Biosignature Preservation and Detection. ASTROBIOLOGY 2021; 21:587-604. [PMID: 33780638 DOI: 10.1089/ast.2020.2276] [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] [Indexed: 06/12/2023]
Abstract
Microbe-mineral interactions can produce unique composite materials, which can preserve biosignatures. Geological evidence suggests that iron sulfide (Fe-S) minerals are abundant in the subsurface of Mars. On Earth, the formation of Fe-S minerals is driven by sulfate-reducing microorganisms (SRM) that produce reactive sulfide. Moreover, SRM metabolites, as well as intact cells, can influence the morphology, particle size, aggregation, and composition of biogenic Fe-S minerals. In this work, we evaluated how simple and complex organic molecules-hexoses and amino acid/peptide mixtures, respectively-influence the formation of Fe-S minerals (simulated prebiotic conditions), and whether the observed patterns mimic the biological influence of SRM. To this end, organo-mineral aggregates were characterized with X-ray diffraction, scanning electron microscopy, and scanning transmission X-ray microscopy coupled to near-edge X-ray absorption fine structure spectroscopy. Overall, Fe-S minerals were found to have a strong affinity for proteinaceous organic matter. Fe-S minerals precipitated at simulated prebiotic conditions yielded organic carbon distributions that were more homogeneous than treatments with whole SRM cells. In prebiotic experiments, spectroscopy detected potential organic transformations during Fe-S mineral formation, including conversion of hexoses to sugar acids and polymerization of amino acids/peptides into larger peptides/proteins. In addition, prebiotic mineral-carbon assemblages produced nanometer-scaled filamentous aggregated morphologies. On the contrary, in biotic treatments with cells, organic carbon in minerals displayed a more heterogeneous distribution. Notably, "hot spots" of organic carbon and oxygen-containing functional groups, with the size, shape, and composition of microbial cells, were preserved in mineral aggregates. We propose a list of characteristics that could be used to help distinguish biogenic from prebiotic/abiotic Fe-S minerals and help refine the search of extant or extinct microbial life in the martian subsurface.
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Affiliation(s)
- Aude Picard
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, USA
- School of Life Sciences, University of Nevada, Las Vegas, Las Vegas, Nevada, USA
| | - Amy Gartman
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, USA
| | - Peter R Girguis
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, USA
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Crystalline and amorphous calcium carbonate as structural components of the Calappa granulata exoskeleton. J Struct Biol 2020; 211:107557. [PMID: 32603682 DOI: 10.1016/j.jsb.2020.107557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/21/2020] [Accepted: 06/23/2020] [Indexed: 11/18/2022]
Abstract
The exoskeleton of crustaceans consists of chitin biopolymers where the embedded inorganic biominerals, mainly CaCO3, affect strongly its mechanical properties. Raman and Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopies and Transmission Electron Microscopy (TEM) are applied to investigate the CaCO3 structure in various parts of the Calappa granulata crab exoskeleton. The shape of the main Raman peak of CaCO3 reveals the presence of two phases which are identified as calcite and amorphous calcium carbonate (ACC). The relative concentration of the two phases in various parts of the exoskeleton is determined from the area ratio under the corresponding peaks. The results of the Ca L3,2-edge NEXAFS analysis are in line with the Raman findings, since the energy separation of peaks that appear in the lower frequency region of the main L2 and L3 peaks due to crystal field splitting, is directly related to the percentage of the ACC phase in the total CaCO3 mineral content. The C K-edge spectra are used for the determination of the extent of calcification of the exoskeleton. Furthermore, dark and bright field TEM images reveal the presence of nanocrystallites with an average size of 20 nm. The structure of the nanocrystallites, as derived from the Selected Area Electron Diffraction patterns, is calcite. The results suggest that ACC plays a structural role in the exoskeleton of Calappa granulata.
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Brooks J, Everett J, Lermyte F, Tjhin VT, Banerjee S, O'Connor PB, Morris CM, Sadler PJ, Telling ND, Collingwood JF. Label-Free Nanoimaging of Neuromelanin in the Brain by Soft X-ray Spectromicroscopy. Angew Chem Int Ed Engl 2020; 59:11984-11991. [PMID: 32227670 PMCID: PMC7383895 DOI: 10.1002/anie.202000239] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/10/2020] [Indexed: 12/22/2022]
Abstract
A hallmark of Parkinson's disease is the death of neuromelanin-pigmented neurons, but the role of neuromelanin is unclear. The in situ characterization of neuromelanin remains dependent on detectable pigmentation, rather than direct quantification of neuromelanin. We show that direct, label-free nanoscale visualization of neuromelanin and associated metal ions in human brain tissue can be achieved using synchrotron scanning transmission x-ray microscopy (STXM), through a characteristic feature in the neuromelanin x-ray absorption spectrum at 287.4 eV that is also present in iron-free and iron-laden synthetic neuromelanin. This is confirmed in consecutive brain sections by correlating STXM neuromelanin imaging with silver nitrate-stained neuromelanin. Analysis suggests that the 1s-σ* (C-S) transition in benzothiazine groups accounts for this feature. This method illustrates the wider potential of STXM as a label-free spectromicroscopy technique applicable to both organic and inorganic materials.
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Affiliation(s)
- Jake Brooks
- School of EngineeringUniversity of WarwickCoventryUK
| | - James Everett
- School of EngineeringUniversity of WarwickCoventryUK
- School of Pharmacy and BioengineeringKeele UniversityStoke-on-TrentUK
| | | | | | | | | | - Christopher M. Morris
- Newcastle Brain Tissue Resource, Translational and Clinical Research InstituteNewcastle UniversityNewcastle-upon-TyneUK
| | | | - Neil D. Telling
- School of Pharmacy and BioengineeringKeele UniversityStoke-on-TrentUK
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23
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Brooks J, Everett J, Lermyte F, Tjhin VT, Banerjee S, O'Connor PB, Morris CM, Sadler PJ, Telling ND, Collingwood JF. Label‐Free Nanoimaging of Neuromelanin in the Brain by Soft X‐ray Spectromicroscopy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jake Brooks
- School of Engineering University of Warwick Coventry UK
| | - James Everett
- School of Engineering University of Warwick Coventry UK
- School of Pharmacy and Bioengineering Keele University Stoke-on-Trent UK
| | | | | | - Samya Banerjee
- Department of Chemistry University of Warwick Coventry UK
| | | | - Christopher M. Morris
- Newcastle Brain Tissue Resource, Translational and Clinical Research Institute Newcastle University Newcastle-upon-Tyne UK
| | | | - Neil D. Telling
- School of Pharmacy and Bioengineering Keele University Stoke-on-Trent UK
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24
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Jiang YY, Wang ZQ, Chen JT, Li J, Zhu YJ, Liu LJ, Guo XX, Hu YF, He SS, Wu J, Chen F, Sham TK. Tracking the interaction of drug molecules with individual mesoporous amorphous calcium phosphate/ATP nanocomposites - an X-ray spectromicroscopy study. Phys Chem Chem Phys 2020; 22:13108-13117. [PMID: 32490501 DOI: 10.1039/d0cp00797h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adenosine triphosphate (ATP) biomolecules play critial roles in the biomineralization process during the formation of amorphous calcium phosphate composites (ACPC), and ACPC is an important drug carrier due to its significant advantages of biocompatibility and biodegradability. Hence, studying the behavior of ACPC nanodrug carriers is crucial to investigate the structural regulation of biomimetic minerals and calcium phosphate (CaP)-based drug delivery systems. However, it is difficult to probe these interactions using traditional characterization methods. In this paper, XANES analysis together with STXM successfully provided a method to reveal the interaction of ATP and drug molecules with individual mesoporous ACPC. We found that the adenosine and phosphate groups of ATP biomolecules coordinated with Ca2+ and played critical roles in the formation of ACPC; drug molecules with the -COOH groups were linked to Ca2+via carboxylic acid groups primarily by electrostatic interactions, and the N-containing ring structures within the drug molecules also coordinated with Ca2+.
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Affiliation(s)
- Ying-Ying Jiang
- Department of Orthopedic, Spinal Pain Research Institute, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, P. R. China.
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25
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Trinh TX, Kwon SJ, Gerelkhuu Z, Choi JS, Song J, Yoon TH. Identification of Ca-rich dense granules in human platelets using scanning transmission X-ray microscopy. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:720-724. [PMID: 32381773 PMCID: PMC7285678 DOI: 10.1107/s1600577520002702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 02/26/2020] [Indexed: 06/11/2023]
Abstract
Whole-mount (WM) platelet preparation followed by transmission electron microscopy (TEM) observation is the standard method currently used to assess dense granule (DG) deficiency (DGD). However, due to the electron-density-based contrast mechanism in TEM, other granules such as α-granules might cause false DG detection. Here, scanning transmission X-ray microscopy (STXM) was used to identify DGs and minimize false DG detection of human platelets. STXM image stacks of human platelets were collected at the calcium (Ca) L2,3 absorption edge and then converted to optical density maps. Ca distribution maps, obtained by subtracting the optical density maps at the pre-edge region from those at the post-edge region, were used to identify DGs based on the Ca richness. DGs were successfully detected using this STXM method without false detection, based on Ca maps for four human platelets. Spectral analysis of granules in human platelets confirmed that DGs contain a richer Ca content than other granules. The Ca distribution maps facilitated more effective DG identification than TEM which might falsely detect DGs. Correct identification of DGs would be important to assess the status of platelets and DG-related diseases. Therefore, this STXM method is proposed as a promising approach for better DG identification and diagnosis, as a complementary tool to the current WM TEM approach.
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Affiliation(s)
- Tung X. Trinh
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
| | - Sook Jin Kwon
- Center for Next Generation Cytometry, Hanyang University, Seoul 04763, Republic of Korea
| | - Zayakhuu Gerelkhuu
- Center for Next Generation Cytometry, Hanyang University, Seoul 04763, Republic of Korea
| | - Jang Sik Choi
- Center for Next Generation Cytometry, Hanyang University, Seoul 04763, Republic of Korea
- Institute of Next Generation Material Design, Hanyang University, Seoul 04763, Republic of Korea
| | - Jaewoo Song
- Department of Laboratory Medicine, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Tae Hyun Yoon
- Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
- Center for Next Generation Cytometry, Hanyang University, Seoul 04763, Republic of Korea
- Institute of Next Generation Material Design, Hanyang University, Seoul 04763, Republic of Korea
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26
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Colocho Hurtarte LC, Santana Amorim HC, Kruse J, Criginski Cezar J, Klysubun W, Prietzel J. A Novel Approach for the Quantification of Different Inorganic and Organic Phosphorus Compounds in Environmental Samples by P L 2,3-Edge X-ray Absorption Near-Edge Structure (XANES) Spectroscopy. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:2812-2820. [PMID: 32068384 DOI: 10.1021/acs.est.9b07018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Phosphorus (P) is an essential element for life on Earth, with an important and oftentimes unaccounted organic biogeochemical component. Current methods for the quantification of different organic P compounds in environmental samples (e.g., soils, sediments) are based on extraction techniques and often associated with incomplete P recovery or sample changes. In this study, we present a protocol for the quantification of different organic and inorganic P species in soils using synchrotron-based X-ray absorption near-edge structure (XANES) spectroscopy at the P L2,3-edge. Its accuracy and precision was evaluated by analyzing 40 standard mixtures composed of seven different inorganic and organic P compounds (with a mean of R2 = 0.85). In addition, we quantified the P species of two soils and two agro-industrial byproducts using P L2,3-edge XANES spectroscopy and the results were compared with those obtained by P K-edge XANES or 31P NMR spectroscopy. Using the P L2,3-edge, we identified different organic P species, including those not identified by the common P K-edge XANES. However, there is a consistent underestimation of organic polyphosphates. Overall, the application of P L2,3-edge XANES provides a higher level of information than by P K-edge XANES, although the ubiquitous use of this novel methodology is still limited to samples with a phosphorus content above 3 mg g-1.
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Affiliation(s)
- Luis Carlos Colocho Hurtarte
- Lehrstuhl für Bodenkunde, Research Department Ecology and Ecosystem Management, Technische Universität München, Emil-Ramann-Straße 2, 85354 Freising, Germany
| | - Helen Carla Santana Amorim
- Universidade Federal de Lavras, Departamento de Ciência do Solo, 1001 Av. Doutor Silvio Menicucci, Lavras, MG 37200-000, Brazil
| | - Jens Kruse
- Institute of Bio- and Geosciences, Agrosphere Institute (IBG-3), Forschungszentrum Jülich GmbH, Wilhelm Johnen Straße, 52425 Jülich, Germany
- Institute of Crop Science and Resource Conservation (INRES), Soil Science and Soil Ecology, University Bonn, Nussallee 13, 53115 Bonn, Germany
| | - Julio Criginski Cezar
- Laboratório Nacional de Luz Síncrotron (LNLS) -Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas, SP 13083-971, Brazil
| | - Wantana Klysubun
- Synchrotron Light Research Institute, Muang District, 111 University Avenue, Nakhon Ratchasima 30000, Thailand
| | - Jörg Prietzel
- Lehrstuhl für Bodenkunde, Research Department Ecology and Ecosystem Management, Technische Universität München, Emil-Ramann-Straße 2, 85354 Freising, Germany
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27
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Gay C, Letavernier E, Verpont MC, Walls M, Bazin D, Daudon M, Nassif N, Stéphan O, de Frutos M. Nanoscale Analysis of Randall's Plaques by Electron Energy Loss Spectromicroscopy: Insight in Early Biomineral Formation in Human Kidney. ACS NANO 2020; 14:1823-1836. [PMID: 31909991 DOI: 10.1021/acsnano.9b07664] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Idiopathic kidney stones originate mainly from calcium phosphate deposits at the tip of renal papillae, known as Randall's plaques (RPs), also detected in most human kidneys without stones. However, little is known about the mechanisms involved in RP formation. The localization and characterization of such nanosized objects in the kidney remain a real challenge, making their study arduous. This study provides a nanoscale analysis of the chemical composition and morphology of incipient RPs, characterizing in particular the interface between the mineral and the surrounding organic compounds. Relying on data gathered from a calculi collection, the morphology and chemical composition of incipient calcifications in renal tissue were determined using spatially resolved electron energy-loss spectroscopy. We detected microcalcifications and individual nanocalcifications found at some distance from the larger ones. Strikingly, concerning the smaller ones, we show that two types of nanocalcifications coexist: calcified organic vesicles and nanometric mineral granules mainly composed of calcium phosphate with carbonate in their core. Interestingly, some of these nanocalcifications present similarities with those reported in physiological bone or pathological cardiovascular biominerals, suggesting possible common formation mechanisms. However, the high diversity of these nanocalcifications suggests that several mechanisms may be involved (nucleation on a carbonate core or on organic compounds). In addition, incipient RPs also appear to present specific features at larger scales, revealing secondary calcified structures embedded in a fibrillar organic material. Our study proves that analogies exist between physiological and pathological biominerals and provides information to understand the physicochemical processes involved in pathological calcification formation.
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Affiliation(s)
- Clément Gay
- Laboratoire de Physique des Solides, CNRS UMR 8502 , Université de Paris-Saclay , F-91405 , Orsay , France
| | - Emmanuel Letavernier
- Sorbonne Université , UPMC Univ Paris 06, UMR S 1155, F-75020 , Paris , France
- INSERM , UMR S 1155, F-75020 , Paris , France
- Physiology Unit, APHP , Hôpital Tenon , F-75020 , Paris , France
| | - Marie-Christine Verpont
- Sorbonne Université , UPMC Univ Paris 06, UMR S 1155, F-75020 , Paris , France
- INSERM , UMR S 1155, F-75020 , Paris , France
| | - Michael Walls
- Laboratoire de Physique des Solides, CNRS UMR 8502 , Université de Paris-Saclay , F-91405 , Orsay , France
| | - Dominique Bazin
- Laboratoire de Chimie Physique, UMR 8000-CNRS , Université de Paris-Saclay , F-91405 , Orsay , France
| | - Michel Daudon
- Sorbonne Université , UPMC Univ Paris 06, UMR S 1155, F-75020 , Paris , France
- INSERM , UMR S 1155, F-75020 , Paris , France
- Physiology Unit, APHP , Hôpital Tenon , F-75020 , Paris , France
| | - Nadine Nassif
- Sorbonne Université , CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), 4 Place Jussieu , F-75005 , Paris , France
| | - Odile Stéphan
- Laboratoire de Physique des Solides, CNRS UMR 8502 , Université de Paris-Saclay , F-91405 , Orsay , France
| | - Marta de Frutos
- Laboratoire de Physique des Solides, CNRS UMR 8502 , Université de Paris-Saclay , F-91405 , Orsay , France
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28
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Gourgas O, Cole GB, Muiznieks LD, Sharpe S, Cerruti M. Effect of the Ionic Concentration of Simulated Body Fluid on the Minerals Formed on Cross-Linked Elastin-Like Polypeptide Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15364-15375. [PMID: 31729882 DOI: 10.1021/acs.langmuir.9b02542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Deposition of calcium phosphate minerals on the elastin-rich medial layers of arteries can cause severe cardiovascular complications. There are no available treatments for medial calcification, and the mechanism of mineral formation on elastin layers is still unknown. We recently developed an in vitro model of medial calcification using cross-linked elastin-like polypeptide (ELP) membranes immersed in simulated body fluid (SBF). While mineral phase evolution matched that observed in a mouse model of medial calcification, the long incubation required was a practical limitation of this model. Using higher SBF ion concentrations could be a solution to speed up mineral deposition, but its effect on the mineralization process is still not well understood. Here we analyze mineral formation and phase transformation on ELP membranes immersed in high concentration SBF. We show that while mineral deposition is significantly accelerated in these conditions, the chemistry and morphology of the minerals deposited on the ELP membranes and the overall mineralization process are strongly affected. Overall, this work suggests that while the use of low concentration SBF in this in vitro model is more appropriate to study medial calcification associated with the loss of calcification inhibitors, higher SBF ion concentration may be more relevant to study medial calcification in patients with life-threatening diseases such as chronic kidney disease.
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Affiliation(s)
- Ophélie Gourgas
- Department of Mining and Materials Engineering , McGill University , Montreal , Quebec H3A 0C5 , Canada
| | - Gregory B Cole
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
- Department of Biochemistry , University of Toronto , Toronto , Ontario M5S 1A8 , Canada
| | - Lisa D Muiznieks
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
| | - Simon Sharpe
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
- Department of Biochemistry , University of Toronto , Toronto , Ontario M5S 1A8 , Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering , McGill University , Montreal , Quebec H3A 0C5 , Canada
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29
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Emerging Approaches to Investigate the Influence of Transition Metals in the Proteinopathies. Cells 2019; 8:cells8101231. [PMID: 31658742 PMCID: PMC6829613 DOI: 10.3390/cells8101231] [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: 08/30/2019] [Revised: 10/04/2019] [Accepted: 10/06/2019] [Indexed: 12/18/2022] Open
Abstract
Transition metals have essential roles in brain structure and function, and are associated with pathological processes in neurodegenerative disorders classed as proteinopathies. Synchrotron X-ray techniques, coupled with ultrahigh-resolution mass spectrometry, have been applied to study iron and copper interactions with amyloid β (1–42) or α-synuclein. Ex vivo tissue and in vitro systems were investigated, showing the capability to identify metal oxidation states, probe local chemical environments, and localize metal-peptide binding sites. Synchrotron experiments showed that the chemical reduction of ferric (Fe3+) iron and cupric (Cu2+) copper can occur in vitro after incubating each metal in the presence of Aβ for one week, and to a lesser extent for ferric iron incubated with α-syn. Nanoscale chemical speciation mapping of Aβ-Fe complexes revealed a spatial heterogeneity in chemical reduction of iron within individual aggregates. Mass spectrometry allowed the determination of the highest-affinity binding region in all four metal-biomolecule complexes. Iron and copper were coordinated by the same N-terminal region of Aβ, likely through histidine residues. Fe3+ bound to a C-terminal region of α-syn, rich in aspartic and glutamic acid residues, and Cu2+ to the N-terminal region of α-syn. Elucidating the biochemistry of these metal-biomolecule complexes and identifying drivers of chemical reduction processes for which there is evidence ex-vivo, are critical to the advanced understanding of disease aetiology.
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30
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Procopio A, Malucelli E, Pacureanu A, Cappadone C, Farruggia G, Sargenti A, Castiglioni S, Altamura D, Sorrentino A, Giannini C, Pereiro E, Cloetens P, Maier JAM, Iotti S. Chemical Fingerprint of Zn-Hydroxyapatite in the Early Stages of Osteogenic Differentiation. ACS CENTRAL SCIENCE 2019; 5:1449-1460. [PMID: 31482128 PMCID: PMC6716342 DOI: 10.1021/acscentsci.9b00509] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Indexed: 06/01/2023]
Abstract
The core knowledge about biomineralization is provided by studies on the advanced phases of the process mainly occurring in the extracellular matrix. Here, we investigate the early stages of biomineralization by evaluating the chemical fingerprint of the initial mineral nuclei deposition in the intracellular milieu and their evolution toward hexagonal hydroxyapatite. The study is conducted on human bone mesenchymal stem cells exposed to an osteogenic cocktail for 4 and 10 days, exploiting laboratory X-ray diffraction techniques and cutting-edge developments of synchrotron-based 2D and 3D cryo-X-ray microscopy. We demonstrate that biomineralization starts with Zn-hydroxyapatite nucleation within the cell, rapidly evolving toward hexagonal hydroxyapatite crystals, very similar in composition and structure to the one present in human bone. These results provide experimental evidence of the germinal role of Zn in hydroxyapatite nucleation and foster further studies on the intracellular molecular mechanisms governing the initial phases of bone tissue formation.
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Affiliation(s)
- Alessandra Procopio
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
| | | | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
- National Institute of Biostructures and Biosystems, Rome 00136, Italy
| | - Azzurra Sargenti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
| | - Sara Castiglioni
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan 20122, Italy
| | - Davide Altamura
- Institute of Crystallography, National Research Council, Bari 70126, Italy
| | - Andrea Sorrentino
- ALBA Synchrotron Light Source, Cerdanyola del Vallès, Barcelona 08290, Spain
| | - Cinzia Giannini
- Institute of Crystallography, National Research Council, Bari 70126, Italy
| | - Eva Pereiro
- ALBA Synchrotron Light Source, Cerdanyola del Vallès, Barcelona 08290, Spain
| | - Peter Cloetens
- ID16A Beamline, ESRF, the European Synchrotron, Grenoble 38043, France
| | - Jeanette A M Maier
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan 20122, Italy
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
- National Institute of Biostructures and Biosystems, Rome 00136, Italy
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31
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Gourgas O, Muiznieks LD, Bello DG, Nanci A, Sharpe S, Cerruti M. Cross-Linked Elastin-like Polypeptide Membranes as a Model for Medial Arterial Calcification. Biomacromolecules 2019; 20:2625-2636. [DOI: 10.1021/acs.biomac.9b00417] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Ophélie Gourgas
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Lisa D. Muiznieks
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
| | - Dainelys Guadarrama Bello
- Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Antonio Nanci
- Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Simon Sharpe
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
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32
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Everett J, Collingwood JF, Tjendana-Tjhin V, Brooks J, Lermyte F, Plascencia-Villa G, Hands-Portman I, Dobson J, Perry G, Telling ND. Nanoscale synchrotron X-ray speciation of iron and calcium compounds in amyloid plaque cores from Alzheimer's disease subjects. NANOSCALE 2018; 10:11782-11796. [PMID: 29688240 PMCID: PMC6034173 DOI: 10.1039/c7nr06794a] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 03/19/2018] [Indexed: 05/11/2023]
Abstract
Altered metabolism of biometals in the brain is a key feature of Alzheimer's disease, and biometal interactions with amyloid-β are linked to amyloid plaque formation. Iron-rich aggregates, including evidence for the mixed-valence iron oxide magnetite, are associated with amyloid plaques. To test the hypothesis that increased chemical reduction of iron, as observed in vitro in the presence of aggregating amyloid-β, may occur at sites of amyloid plaque formation in the human brain, the nanoscale distribution and physicochemical states of biometals, particularly iron, were characterised in isolated amyloid plaque cores from human Alzheimer's disease cases using synchrotron X-ray spectromicroscopy. In situ X-ray magnetic circular dichroism revealed the presence of magnetite: a finding supported by ptychographic observation of an iron oxide crystal with the morphology of biogenic magnetite. The exceptional sensitivity and specificity of X-ray spectromicroscopy, combining chemical and magnetic probes, allowed enhanced differentiation of the iron oxides phases present. This facilitated the discovery and speciation of ferrous-rich phases and lower oxidation state phases resembling zero-valent iron as well as magnetite. Sequestered calcium was discovered in two distinct mineral forms suggesting a dynamic process of amyloid plaque calcification in vivo. The range of iron oxidation states present and the direct observation of biogenic magnetite provide unparalleled support for the hypothesis that chemical reduction of iron arises in conjunction with the formation of amyloid plaques. These new findings raise challenging questions about the relative impacts of amyloid-β aggregation, plaque formation, and disrupted metal homeostasis on the oxidative burden observed in Alzheimer's disease.
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Affiliation(s)
- James Everett
- Institute for Science and Technology in Medicine
, Thornburrow Drive
, Keele University
,
Staffordshire
, ST4 7QB
, UK
- Warwick Engineering in Biomedicine
, School of Engineering
, Library Road
, University of Warwick
,
Coventry
, CV4 7AL
, UK
.
| | - Joanna F. Collingwood
- Warwick Engineering in Biomedicine
, School of Engineering
, Library Road
, University of Warwick
,
Coventry
, CV4 7AL
, UK
.
- Department of Materials Science and Engineering
, University of Florida
,
Gainesville
, FL 32611
, USA
| | - Vindy Tjendana-Tjhin
- Warwick Engineering in Biomedicine
, School of Engineering
, Library Road
, University of Warwick
,
Coventry
, CV4 7AL
, UK
.
| | - Jake Brooks
- Warwick Engineering in Biomedicine
, School of Engineering
, Library Road
, University of Warwick
,
Coventry
, CV4 7AL
, UK
.
| | - Frederik Lermyte
- Warwick Engineering in Biomedicine
, School of Engineering
, Library Road
, University of Warwick
,
Coventry
, CV4 7AL
, UK
.
| | - Germán Plascencia-Villa
- Department of Physics and Astronomy. The University of Texas at San Antonio (UTSA)
,
San Antonio
, TX
78249
, USA
| | - Ian Hands-Portman
- School of Life Sciences
, Gibbet Hill Campus
, University of Warwick
,
Coventry
, CV4 7AL
, UK
| | - Jon Dobson
- Department of Materials Science and Engineering
, University of Florida
,
Gainesville
, FL 32611
, USA
- J. Crayton Pruitt Family Department of Biomedical Engineering
, Institute for Cell and Tissue Science & Engineering
, University of Florida
,
Gainesville
, FL 32611
, USA
| | - George Perry
- Department of Biology and UTSA Neurosciences Institute. The University of Texas at San Antonio (UTSA)
,
San Antonio
, TX
78249
, USA
| | - Neil D. Telling
- Institute for Science and Technology in Medicine
, Thornburrow Drive
, Keele University
,
Staffordshire
, ST4 7QB
, UK
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33
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Konashuk AS, Samoilenko DO, Klyushin AY, Svirskiy GI, Sakhonenkov SS, Brykalova XO, Kuz’mina MA, Filatova EO, Vinogradov AS, Pavlychev AA. Thermal changes in young and mature bone nanostructure probed with Ca 2p excitations. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aab92b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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34
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Pavlychev AA, Avrunin AS, Vinogradov AS, Filatova EO, Doctorov AA, Krivosenko YS, Samoilenko DO, Svirskiy GI, Konashuk AS, Rostov DA. Local electronic structure and nanolevel hierarchical organization of bone tissue: theory and NEXAFS study. NANOTECHNOLOGY 2016; 27:504002. [PMID: 27875332 DOI: 10.1088/0957-4484/27/50/504002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Theoretical and experimental investigations of native bone are carried out to understand relationships between its hierarchical organization and local electronic and atomic structure of the mineralized phase. The 3D superlattice model of a coplanar assembly of the hydroxyapatite (HAP) nanocrystallites separated by the hydrated nanolayers is introduced to account the interplay of short-, long- and super-range order parameters in bone tissue. The model is applied to (i) predict and rationalize the HAP-to-bone spectral changes in the electronic structure and (ii) describe the mechanisms ensuring the link of the hierarchical organization with the electronic structure of the mineralized phase in bone. To check the predictions the near-edge x-ray absorption fine structure (NEXAFS) at the Ca 2p, P 2p and O 1s thresholds is measured for native bone and compared with NEXAFS for reference compounds. The NEXAFS analysis has demonstrated the essential hierarchy induced HAP-to-bone red shifts of the Ca and P 2p-to-valence transitions. The lowest O 1s excitation line at 532.2 eV in bone is assigned with superposition of core transitions in the hydroxide OH-(H2O) m anions, Ca2+(H2O) n cations, the carboxyl groups inside the collagen and [PO4]2- and [PO4]- anions with unsaturated P-O bonds.
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Affiliation(s)
- A A Pavlychev
- Solid State Electronics Department, St. Petersburg State University, St. Petersburg, 198504, Russian Federation
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In Situ Soft X-ray Spectromicroscopy of Early Tricalcium Silicate Hydration. MATERIALS 2016; 9:ma9120976. [PMID: 28774096 PMCID: PMC5457008 DOI: 10.3390/ma9120976] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 11/29/2016] [Accepted: 11/29/2016] [Indexed: 11/27/2022]
Abstract
The understanding and control of early hydration of tricalcium silicate (C3S) is of great importance to cement science and concrete technology. However, traditional characterization methods are incapable of providing morphological and spectroscopic information about in situ hydration at the nanoscale. Using soft X-ray spectromicroscopy, we report the changes in morphology and molecular structure of C3S at an early stage of hydration. In situ C3S hydration in a wet cell, beginning with induction (~1 h) and acceleration (~4 h) periods of up to ~8 h, was studied and compared with ex situ measurements in the deceleration period after 15 h of curing. Analysis of the near-edge X-ray absorption fine structure showed that the Ca binding energy and energy splitting of C3S changed rapidly in the early age of hydration and exhibited values similar to calcium silicate hydrate (C–S–H). The formation of C–S–H nanoseeds in the C3S solution and the development of a fibrillar C–S–H morphology on the C3S surface were visualized. Following this, silicate polymerization accompanied by C–S–H precipitation produced chemical shifts in the peaks of the main Si K edge and in multiple scattering. However, the silicate polymerization process did not significantly affect the Ca binding energy of C–S–H.
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36
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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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37
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Chappard C, André G, Daudon M, Bazin D. Analysis of hydroxyapatite crystallites in subchondral bone by Fourier transform infrared spectroscopy and powder neutron diffraction methods. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.03.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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38
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Bazin D, Letavernier E, Jouanneau C, Ronco P, Sandt C, Dumas P, Matzen G, Véron E, Haymann JP, Traxer O, Conort P, Daudon M. New insights into the presence of sodium hydrogen urate monohydrate in Randall's plaque. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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39
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Payne SA, Katti DR, Katti KS. Probing electronic structure of biomineralized hydroxyapatite inside nanoclay galleries. Micron 2016; 90:78-86. [PMID: 27619364 DOI: 10.1016/j.micron.2016.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 08/30/2016] [Accepted: 09/01/2016] [Indexed: 11/17/2022]
Abstract
Hydroxyapatite, the most abundant mineral in the human body, is also an important component in design of biomaterials for bone tissue regeneration. Synthetic hydroxyapatite mineralized in the laboratory often does not exhibit the same biological and morphological properties of biogenic hydroxyapatite in human bone. A biomimetic hydroxyapatite structure is synthesized using biomineralization routes inside the clay galleries of montmorillonite clay. Amino acids are used to modify the clay galleries. These amino acids are used to mineralize hydroxyapatite. The molecular interactions between nanoclay, modifiers inside nanoclay (amino acids) and biomineralized hydroxyapatite result in unique morphology, structure and stoichiometry of the biomineralized hydroxyapatite. Prior studies have indicated that this biomineralized hydroxyapatite inside nanoclay galleries is an effective component of tissue engineering bone scaffolds that elicits an optimal biological response from human mesenchymal stem cells. Here, a detailed electron energy-loss spectroscopy (EELS) study is reported that elucidates the differences in hydroxyapatite, biomineralized hydroxyapatite and β-tricalcium phosphate (β-TCP). Comparison of EELS low-loss transitions and energy loss near-edge structure (ELNES) of P-L2,3 edges for these three compounds is done to determine if there are differences in their electronic structures. These changes observed experimentally are compared with prior predictions and simulations using molecular dynamics studies. The simulations predict attractive and repulsive interactions between phosphate, modified MMT clay and aminovaleric acid (amino acid) molecules. Kramers-Kronig analysis is performed on the loss spectra obtained to yield the real and imaginary parts of the dielectric function of the apatites (ε1 and ε 2). We have also used the ε2 spectra obtained to calculate the AC conductivity spectra for the apatites. This study represents a unique experimental probe into molecular interactions in complex biomineralized hydroxyapatite structures. The small changes observed in the energy loss spectra appear to play important biological roles in biomineralized hydroxyapatite such as the ability to differentiate human mesenchymal stem cells into osteoblasts without growth media.
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Affiliation(s)
- Scott A Payne
- Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND 58105, USA
| | - Dinesh R Katti
- Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND 58105, USA
| | - Kalpana S Katti
- Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND 58105, USA.
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40
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Demir S, Brune N, Van Humbeck J, Mason JA, Plakhova T, Wang S, Tian G, Minasian SG, Tyliszczak T, Yaita T, Kobayashi T, Kalmykov SN, Shiwaku H, Shuh DK, Long JR. Extraction of Lanthanide and Actinide Ions from Aqueous Mixtures Using a Carboxylic Acid-Functionalized Porous Aromatic Framework. ACS CENTRAL SCIENCE 2016; 2:253-65. [PMID: 27163056 PMCID: PMC4850516 DOI: 10.1021/acscentsci.6b00066] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Indexed: 05/04/2023]
Abstract
Porous aromatic frameworks (PAFs) incorporating a high concentration of acid functional groups possess characteristics that are promising for use in separating lanthanide and actinide metal ions, as required in the treatment of radioactive waste. These materials have been shown to be indefinitely stable to concentrated acids and bases, potentially allowing for multiple adsorption/stripping cycles. Additionally, the PAFs combine exceptional features from MOFs and inorganic/activated carbons giving rise to tunable pore surfaces and maximum chemical stability. Herein, we present a study of the adsorption of selected metal ions, Sr(2+), Fe(3+), Nd(3+), and Am(3+), from aqueous solutions employing a carbon-based porous aromatic framework, BPP-7 (Berkeley Porous Polymer-7). This material displays high metal loading capacities together with excellent adsorption selectivity for neodymium over strontium based on Langmuir adsorption isotherms and ideal adsorbed solution theory (IAST) calculations. Based in part upon X-ray absorption spectroscopy studies, the stronger adsorption of neodymium is attributed to multiple metal ion and binding site interactions resulting from the densely functionalized and highly interpenetrated structure of BPP-7. Recyclability and combustibility experiments demonstrate that multiple adsorption/stripping cycles can be completed with minimal degradation of the polymer adsorption capacity.
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Affiliation(s)
- Selvan Demir
- Department of Chemistry and Department of
Chemical and Biomolecular Engineering, University
of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Materials Sciences
Division,
and Advanced Light
Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Nicholas
K. Brune
- Department of Chemistry and Department of
Chemical and Biomolecular Engineering, University
of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Materials Sciences
Division,
and Advanced Light
Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jeffrey
F. Van Humbeck
- Department of Chemistry and Department of
Chemical and Biomolecular Engineering, University
of California, Berkeley, California 94720, United States
| | - Jarad A. Mason
- Department of Chemistry and Department of
Chemical and Biomolecular Engineering, University
of California, Berkeley, California 94720, United States
| | - Tatiana
V. Plakhova
- Chemical Sciences Division, Materials Sciences
Division,
and Advanced Light
Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Chemistry
Department, Lomonosov Moscow State University, Leninskie Gory, Moscow 11991, Russia
| | - Shuao Wang
- Department of Chemistry and Department of
Chemical and Biomolecular Engineering, University
of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Materials Sciences
Division,
and Advanced Light
Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Guoxin Tian
- Chemical Sciences Division, Materials Sciences
Division,
and Advanced Light
Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Radiochemistry
Department, China Institute of Atomic Energy, Beijing 102413, China
| | - Stefan G. Minasian
- Chemical Sciences Division, Materials Sciences
Division,
and Advanced Light
Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Tolek Tyliszczak
- Chemical Sciences Division, Materials Sciences
Division,
and Advanced Light
Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Tsuyoshi Yaita
- Actinide
Chemistry Group, Energy and Environment Science Division, Quantum
Beam Science Center, Japan Atomic Energy
Agency, 1-1-1 Kouto,
Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Tohru Kobayashi
- Actinide
Chemistry Group, Energy and Environment Science Division, Quantum
Beam Science Center, Japan Atomic Energy
Agency, 1-1-1 Kouto,
Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Stepan N. Kalmykov
- Chemistry
Department, Lomonosov Moscow State University, Leninskie Gory, Moscow 11991, Russia
| | - Hideaki Shiwaku
- Actinide
Chemistry Group, Energy and Environment Science Division, Quantum
Beam Science Center, Japan Atomic Energy
Agency, 1-1-1 Kouto,
Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - David K. Shuh
- Chemical Sciences Division, Materials Sciences
Division,
and Advanced Light
Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jeffrey R. Long
- Department of Chemistry and Department of
Chemical and Biomolecular Engineering, University
of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Materials Sciences
Division,
and Advanced Light
Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- E-mail:
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41
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Biomineralization Patterns of Intracellular Carbonatogenesis in Cyanobacteria: Molecular Hypotheses. MINERALS 2016. [DOI: 10.3390/min6010010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Yusop AHM, Daud NM, Nur H, Kadir MRA, Hermawan H. Controlling the degradation kinetics of porous iron by poly(lactic-co-glycolic acid) infiltration for use as temporary medical implants. Sci Rep 2015; 5:11194. [PMID: 26057073 PMCID: PMC4460907 DOI: 10.1038/srep11194] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 05/15/2015] [Indexed: 11/09/2022] Open
Abstract
Iron and its alloy have been proposed as biodegradable metals for temporary medical implants. However, the formation of iron oxide and iron phosphate on their surface slows down their degradation kinetics in both in vitro and in vivo scenarios. This work presents new approach to tailor degradation behavior of iron by incorporating biodegradable polymers into the metal. Porous pure iron (PPI) was vacuum infiltrated by poly(lactic-co-glycolic acid) (PLGA) to form fully dense PLGA-infiltrated porous iron (PIPI) and dip coated into the PLGA to form partially dense PLGA-coated porous iron (PCPI). Results showed that compressive strength and toughness of the PIPI and PCPI were higher compared to PPI. A strong interfacial interaction was developed between the PLGA layer and the iron surface. Degradation rate of PIPI and PCPI was higher than that of PPI due to the effect of PLGA hydrolysis. The fast degradation of PIPI did not affect the viability of human fibroblast cells. Finally, this work discusses a degradation mechanism for PIPI and the effect of PLGA incorporation in accelerating the degradation of iron.
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Affiliation(s)
- Abdul Hakim Md Yusop
- Medical Devices Technology Group (MediTeg), Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310, Malaysia
| | - Nurizzati Mohd Daud
- Medical Devices Technology Group (MediTeg), Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310, Malaysia
| | - Hadi Nur
- Center for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, Johor Bahru, 81310, Malaysia
| | - Mohammed Rafiq Abdul Kadir
- Medical Devices Technology Group (MediTeg), Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310, Malaysia
| | - Hendra Hermawan
- Medical Devices Technology Group (MediTeg), Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310, Malaysia
- Dept. of Mining, Metallurgical and Materials Engineering & CHU de Québec Research Center, Laval University, Quebec City, G1V 0A6, Canada
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43
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Hendley CT, Tao J, Kunitake JAMR, De Yoreo JJ, Estroff LA. Microscopy techniques for investigating the control of organic constituents on biomineralization. MRS BULLETIN 2015; 40:480-489. [PMID: 27358507 PMCID: PMC4922639 DOI: 10.1557/mrs.2015.98] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This article addresses recent advances in the application of microscopy techniques to characterize crystallization processes as they relate to biomineralization and bio-inspired materials synthesis. In particular, we focus on studies aimed at revealing the role organic macromolecules and functionalized surfaces play in modulating the mechanisms of nucleation and growth. In nucleation studies, we explore the use of methods such as in situ transmission electron microscopy, atomic force microscopy, and cryogenic electron microscopy to delineate formation pathways, phase stabilization, and the competing effects of free energy and kinetic barriers. In growth studies, emphasis is placed on understanding the interactions of macromolecular constituents with growing crystals and characterization of the internal structures of the resulting composite crystals using techniques such as electron tomography, atom probe tomography, and vibrational spectromicroscopy. Examples are drawn from both biological and bio-inspired synthetic systems.
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