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Giubertoni G, Feng L, Klein K, Giannetti G, Rutten L, Choi Y, van der Net A, Castro-Linares G, Caporaletti F, Micha D, Hunger J, Deblais A, Bonn D, Sommerdijk N, Šarić A, Ilie IM, Koenderink GH, Woutersen S. Elucidating the role of water in collagen self-assembly by isotopically modulating collagen hydration. Proc Natl Acad Sci U S A 2024; 121:e2313162121. [PMID: 38451946 PMCID: PMC10945838 DOI: 10.1073/pnas.2313162121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 12/30/2023] [Indexed: 03/09/2024] Open
Abstract
Water is known to play an important role in collagen self-assembly, but it is still largely unclear how water-collagen interactions influence the assembly process and determine the fibril network properties. Here, we use the H[Formula: see text]O/D[Formula: see text]O isotope effect on the hydrogen-bond strength in water to investigate the role of hydration in collagen self-assembly. We dissolve collagen in H[Formula: see text]O and D[Formula: see text]O and compare the growth kinetics and the structure of the collagen assemblies formed in these water isotopomers. Surprisingly, collagen assembly occurs ten times faster in D[Formula: see text]O than in H[Formula: see text]O, and collagen in D[Formula: see text]O self-assembles into much thinner fibrils, that form a more inhomogeneous and softer network, with a fourfold reduction in elastic modulus when compared to H[Formula: see text]O. Combining spectroscopic measurements with atomistic simulations, we show that collagen in D[Formula: see text]O is less hydrated than in H[Formula: see text]O. This partial dehydration lowers the enthalpic penalty for water removal and reorganization at the collagen-water interface, increasing the self-assembly rate and the number of nucleation centers, leading to thinner fibrils and a softer network. Coarse-grained simulations show that the acceleration in the initial nucleation rate can be reproduced by the enhancement of electrostatic interactions. These results show that water acts as a mediator between collagen monomers, by modulating their interactions so as to optimize the assembly process and, thus, the final network properties. We believe that isotopically modulating the hydration of proteins can be a valuable method to investigate the role of water in protein structural dynamics and protein self-assembly.
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Affiliation(s)
- Giulia Giubertoni
- Van ’t Hoff Institute for Molecular Sciences, Department of Molecular Photonics, University of Amsterdam, Amsterdam1090 GD, The Netherlands
| | - Liru Feng
- Van ’t Hoff Institute for Molecular Sciences, Department of Molecular Photonics, University of Amsterdam, Amsterdam1090 GD, The Netherlands
| | - Kevin Klein
- Institute of Science and Technology Austria, Division of Mathematical and Physical Sciences, Klosterneuburg3400, Austria
- University College London, Division of Physics and Astronomy, LondonWC1E 6BT, United Kingdom
| | - Guido Giannetti
- Van ’t Hoff Institute for Molecular Sciences, Department of Molecular Photonics, University of Amsterdam, Amsterdam1090 GD, The Netherlands
| | - Luco Rutten
- Electron Microscopy Center, Radboud Technology Center Microscopy, Department of Medical BioSciences, Radboud University Medical Center, Nijmegen6525 GA, The Netherlands
| | - Yeji Choi
- Max Planck Institute for Polymer Research, Molecular Spectroscopy Department, Mainz55128, Germany
| | - Anouk van der Net
- Department of Bionanoscience, Kavli Institute of Nanoscience Delft, Delft University of Technology, Delft2628 HZ, The Netherlands
| | - Gerard Castro-Linares
- Department of Bionanoscience, Kavli Institute of Nanoscience Delft, Delft University of Technology, Delft2628 HZ, The Netherlands
| | - Federico Caporaletti
- Van ’t Hoff Institute for Molecular Sciences, Department of Molecular Photonics, University of Amsterdam, Amsterdam1090 GD, The Netherlands
- Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Amsterdam1090 GL, The Netherlands
| | - Dimitra Micha
- Amsterdam University Medical Centers, Human Genetics Department, Vrije Universiteit, Amsterdam1007 MB, The Netherlands
| | - Johannes Hunger
- Max Planck Institute for Polymer Research, Molecular Spectroscopy Department, Mainz55128, Germany
| | - Antoine Deblais
- Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Amsterdam1090 GL, The Netherlands
| | - Daniel Bonn
- Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Amsterdam1090 GL, The Netherlands
| | - Nico Sommerdijk
- Electron Microscopy Center, Radboud Technology Center Microscopy, Department of Medical BioSciences, Radboud University Medical Center, Nijmegen6525 GA, The Netherlands
| | - Andela Šarić
- Institute of Science and Technology Austria, Division of Mathematical and Physical Sciences, Klosterneuburg3400, Austria
| | - Ioana M. Ilie
- Van ’t Hoff Institute for Molecular Sciences, Department of Molecular Photonics, University of Amsterdam, Amsterdam1090 GD, The Netherlands
- Amsterdam Center for Multiscale Modeling, University of Amsterdam, Amsterdam1090 GD, The Netherlands
| | - Gijsje H. Koenderink
- Department of Bionanoscience, Kavli Institute of Nanoscience Delft, Delft University of Technology, Delft2628 HZ, The Netherlands
| | - Sander Woutersen
- Van ’t Hoff Institute for Molecular Sciences, Department of Molecular Photonics, University of Amsterdam, Amsterdam1090 GD, The Netherlands
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Rutten L, de Beer M, Roverts R, Sánchez EM, Sommerdijk N. A Cryo-/Liquid Phase Correlative Light Electron Microscopy Workflow to Visualize Crystallization Processes in Graphene Liquid Cells. Microsc Microanal 2023; 29:1935-1936. [PMID: 37612957 DOI: 10.1093/micmic/ozad067.1002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Luco Rutten
- Department of Medical BioSciences, Research Institute for Medical Innovations, Radboud University Medical Center, Nijmegen, Netherlands
- Electron Microscopy Center, Radboudumc Technology Center Microscopy, Radboud University Medical Center, Nijmegen, Netherlands
| | - Marit de Beer
- Department of Medical BioSciences, Research Institute for Medical Innovations, Radboud University Medical Center, Nijmegen, Netherlands
- Electron Microscopy Center, Radboudumc Technology Center Microscopy, Radboud University Medical Center, Nijmegen, Netherlands
| | - Rona Roverts
- Department of Medical BioSciences, Research Institute for Medical Innovations, Radboud University Medical Center, Nijmegen, Netherlands
- Electron Microscopy Center, Radboudumc Technology Center Microscopy, Radboud University Medical Center, Nijmegen, Netherlands
| | - Elena Macías Sánchez
- Department of Medical BioSciences, Research Institute for Medical Innovations, Radboud University Medical Center, Nijmegen, Netherlands
- Electron Microscopy Center, Radboudumc Technology Center Microscopy, Radboud University Medical Center, Nijmegen, Netherlands
- Department of Stratigraphy and Palaeontolgy, University of Granada, Granada, Spain
| | - Nico Sommerdijk
- Department of Medical BioSciences, Research Institute for Medical Innovations, Radboud University Medical Center, Nijmegen, Netherlands
- Electron Microscopy Center, Radboudumc Technology Center Microscopy, Radboud University Medical Center, Nijmegen, Netherlands
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Carotti V, van Megen WH, Rigalli JP, Barros ER, Sommers V, Rutten L, Sommerdijk N, Peters DJM, van Asbeck-van der Wijst J, Hoenderop JGJ. Extracellular vesicles contribute to early cyst development in autosomal dominant polycystic kidney disease by cell-to-cell communication. FASEB J 2023; 37:e23006. [PMID: 37249915 DOI: 10.1096/fj.202300490r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/12/2023] [Accepted: 05/17/2023] [Indexed: 05/31/2023]
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is characterized by the formation of fluid-filled cysts within the kidney due to mutations in PKD1 or PKD2. Although the disease remains incompletely understood, one of the factors associated with ADPKD progression is the release of nucleotides (including ATP), which can initiate autocrine or paracrine purinergic signaling by binding to their receptors. Recently, we and others have shown that increased extracellular vesicle (EVs) release from PKD1 knockout cells can stimulate cyst growth through effects on recipient cells. Given that EVs are an important communicator between different nephron segments, we hypothesize that EVs released from PKD1 knockout distal convoluted tubule (DCT) cells can stimulate cyst growth in the downstream collecting duct (CD). Here, we show that administration of EVs derived from Pkd1-/- mouse distal convoluted tubule (mDCT15) cells result in a significant increase in extracellular ATP release from Pkd1-/- mouse inner medullary collecting duct (iMCD3) cells. In addition, exposure of Pkd1-/- iMCD3 cells to EVs derived from Pkd1-/- mDCT15 cells led to an increase in the phosphorylation of the serine/threonine-specific protein Akt, suggesting activation of proliferative pathways. Finally, the exposure of iMCD3 Pkd1-/- cells to mDCT15 Pkd1-/- EVs increased cyst size in Matrigel. These findings indicate that EVs could be involved in intersegmental communication between the distal convoluted tubule and the collecting duct and potentially stimulate cyst growth.
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Affiliation(s)
- Valentina Carotti
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Wouter H van Megen
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Juan P Rigalli
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, the Netherlands
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Eric R Barros
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Vera Sommers
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Luco Rutten
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, the Netherlands
- Electron Microscopy Center, Radboudumc Technology Center Microscopy, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Nico Sommerdijk
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, the Netherlands
- Electron Microscopy Center, Radboudumc Technology Center Microscopy, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Dorien J M Peters
- Department of Human Genetics, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Joost G J Hoenderop
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, the Netherlands
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de Beer M, Daviran D, Roverts R, Rutten L, Macías-Sánchez E, Metz JR, Sommerdijk N, Akiva A. Precise targeting for 3D cryo-correlative light and electron microscopy volume imaging of tissues using a FinderTOP. Commun Biol 2023; 6:510. [PMID: 37169904 PMCID: PMC10175257 DOI: 10.1038/s42003-023-04887-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 04/28/2023] [Indexed: 05/13/2023] Open
Abstract
Cryo-correlative light and electron microscopy (cryoCLEM) is a powerful strategy to high resolution imaging in the unperturbed hydrated state. In this approach fluorescence microscopy aids localizing the area of interest, and cryogenic focused ion beam/scanning electron microscopy (cryoFIB/SEM) allows preparation of thin cryo-lamellae for cryoET. However, the current method cannot be accurately applied on bulky (3D) samples such as tissues and organoids. 3D cryo-correlative imaging of large volumes is needed to close the resolution gap between cryo-light microscopy and cryoET, placing sub-nanometer observations in a larger biological context. Currently technological hurdles render 3D cryoCLEM an unexplored approach. Here we demonstrate a cryoCLEM workflow for tissues, correlating cryo-Airyscan confocal microscopy with 3D cryoFIB/SEM volume imaging. Accurate correlation is achieved by imprinting a FinderTOP pattern in the sample surface during high pressure freezing, and allows precise targeting for cryoFIB/SEM volume imaging.
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Affiliation(s)
- Marit de Beer
- Electron Microscopy Center, Radboud Technology Center Microscopy, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Deniz Daviran
- Electron Microscopy Center, Radboud Technology Center Microscopy, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Rona Roverts
- Electron Microscopy Center, Radboud Technology Center Microscopy, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Luco Rutten
- Electron Microscopy Center, Radboud Technology Center Microscopy, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Elena Macías-Sánchez
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Stratigraphy and Paleontology, University of Granada, Granada, Spain
| | - Juriaan R Metz
- Department of Animal Ecology and Physiology, Radboud Institute for Biological and Environmental Sciences, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Nico Sommerdijk
- Electron Microscopy Center, Radboud Technology Center Microscopy, Radboud University Medical Center, Nijmegen, The Netherlands.
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Anat Akiva
- Electron Microscopy Center, Radboud Technology Center Microscopy, Radboud University Medical Center, Nijmegen, The Netherlands.
- Department of Medical Biosciences, Radboud University Medical Center, Nijmegen, The Netherlands.
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Stan D, Yang J, Wahner-Roedler D, Venegas-Pont M, Sandhu A, Fischer K, Bauer B, Rutten L, Brockman T, Valdez Soto M, Wi C, Yost K. Effect of socio-economic status and acculturation on breast cancer screening in Asian American women. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01426-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Soleimani M, Rutten L, Maddala SP, Wu H, Eren ED, Mezari B, Schreur-Piet I, Friedrich H, van Benthem RATM. Author Correction: Modifying the thickness, pore size, and composition of diatom frustule in Craspedostauros sp. with Al 3+ ions. Sci Rep 2022; 12:4175. [PMID: 35264709 PMCID: PMC8907179 DOI: 10.1038/s41598-022-08154-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Mohammad Soleimani
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Luco Rutten
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Sai Prakash Maddala
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Hanglong Wu
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - E Deniz Eren
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Brahim Mezari
- Laboratory for Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Ingeborg Schreur-Piet
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Heiner Friedrich
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands. .,Institute for Complex Molecular Systems, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands.
| | - Rolf A T M van Benthem
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands.
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Carotti V, van der Wijst J, Verschuren EHJ, Rutten L, Sommerdijk N, Kaffa C, Sommers V, Rigalli JP, Hoenderop JGJ. Involvement of ceramide biosynthesis in increased extracellular vesicle release in Pkd1 knock out cells. Front Endocrinol (Lausanne) 2022; 13:1005639. [PMID: 36299464 PMCID: PMC9589111 DOI: 10.3389/fendo.2022.1005639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Autosomal Dominant Polycystic Kidney Disease (ADPKD) is an inherited disorder characterized by the development of renal cysts, which frequently leads to renal failure. Hypertension and other cardiovascular symptoms contribute to the high morbidity and mortality of the disease. ADPKD is caused by mutations in the PKD1 gene or, less frequently, in the PKD2 gene. The disease onset and progression are highly variable between patients, whereby the underlying mechanisms are not fully elucidated. Recently, a role of extracellular vesicles (EVs) in the progression of ADPKD has been postulated. However, the mechanisms stimulating EV release in ADPKD have not been addressed and the participation of the distal nephron segments is still uninvestigated. Here, we studied the effect of Pkd1 deficiency on EV release in wild type and Pkd1-/- mDCT15 and mIMCD3 cells as models of the distal convoluted tubule (DCT) and inner medullary collecting duct (IMCD), respectively. By using nanoparticle tracking analysis, we observed a significant increase in EV release in Pkd1-/- mDCT15 and mIMCD3 cells, with respect to the wild type cells. The molecular mechanisms leading to the changes in EV release were further investigated in mDCT15 cells through RNA sequencing and qPCR studies. Specifically, we assessed the relevance of purinergic signaling and ceramide biosynthesis enzymes. Pkd1-/- mDCT15 cells showed a clear upregulation of P2rx7 expression compared to wild type cells. Depletion of extracellular ATP by apyrase (ecto-nucleotidase) inhibited EV release only in wild type cells, suggesting an exacerbated signaling of the extracellular ATP/P2X7 pathway in Pkd1-/- cells. In addition, we identified a significant up-regulation of the ceramide biosynthesis enzymes CerS6 and Smpd3 in Pkd1-/- cells. Altogether, our findings suggest the involvement of the DCT in the EV-mediated ADPKD progression and points to the induction of ceramide biosynthesis as an underlying molecular mechanism. Further studies should be performed to investigate whether CerS6 and Smpd3 can be used as biomarkers of ADPKD onset, progression or severity.
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Affiliation(s)
- Valentina Carotti
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Jenny van der Wijst
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Eric H. J. Verschuren
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Luco Rutten
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Nico Sommerdijk
- Electron Microscopy Center, Radboud Institute of Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Charlotte Kaffa
- Radboud Technology Center for Bioinformatics, Radboud Institute of Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Vera Sommers
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Juan P. Rigalli
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Joost G. J. Hoenderop
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
- *Correspondence: Joost G. J. Hoenderop,
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Soleimani M, Rutten L, Maddala SP, Wu H, Eren ED, Mezari B, Schreur-Piet I, Friedrich H, van Benthem RATM. Modifying the thickness, pore size, and composition of diatom frustule in Pinnularia sp. with Al 3+ ions. Sci Rep 2020; 10:19498. [PMID: 33177559 PMCID: PMC7658998 DOI: 10.1038/s41598-020-76318-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/23/2020] [Indexed: 11/09/2022] Open
Abstract
Diatoms are unicellular photosynthetic algae that produce a silica exoskeleton (frustule) which exposes a highly ordered nano to micro scale morphology. In recent years there has been a growing interest in modifying diatom frustules for technological applications. This is achieved by adding non-essential metals to the growth medium of diatoms which in turn modifies morphology, composition, and resulting properties of the frustule. Here, we investigate the frustule formation in diatom Pinnularia sp., including changes to overall morphology, silica thickness, and composition, in the presence of Al3+ ions at different concentrations. Our results show that in the presence of Al3+ the total silica uptake from the growth medium increases, although a decrease in the growth rate is observed. This leads to a higher inorganic content per diatom resulting in a decreased pore diameter and a thicker frustule as evidenced by electron microscopy. Furthermore, 27Al solid-state NMR, FIB-SEM, and EDS results confirm that Al3+ becomes incorporated into the frustule during the silicification process, thus, improving hydrolysis resistance. This approach may be extended to a broad range of elements and diatom species towards the scalable production of silica materials with tunable hierarchical morphology and chemical composition.
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Affiliation(s)
- Mohammad Soleimani
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Luco Rutten
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Sai Prakash Maddala
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Hanglong Wu
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - E Deniz Eren
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Brahim Mezari
- Laboratory for Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Ingeborg Schreur-Piet
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands
| | - Heiner Friedrich
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands. .,Institute for Complex Molecular Systems, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands.
| | - Rolf A T M van Benthem
- Laboratory of Physical Chemistry, and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 5, 5612 AE, Eindhoven, The Netherlands.
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Rutten L, Smets P, Vandenabeele S. Post-grooming furunculose bij een hond. VLAAMS DIERGEN TIJDS 2017. [DOI: 10.21825/vdt.v86i2.16294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Een mannelijke, intacte labrador retriever van vijf jaar oud werd op spoed aangeboden met algemene klachten van koorts, lethargie en anorexie. Tijdens het klinisch onderzoek werden erg pijnlijke huidletsels dorsaal ter hoogte van de nek en rug opgemerkt. Verder was er links apicaal een duidelijk systolisch bijgeruis met een graad van 4/6 aanwezig. Het histopathologisch onderzoek van een huidbiopt vertoonde een ruptuur van de follikelwand met daarrond een uitgesproken suppuratieve ontstekingsreactie. De hond werd gediagnosticeerd met post-grooming furunculose en mitralisklependocardiose ACVIM stage B2. De kiem verantwoordelijk voor de post-grooming folliculitis en furunculose werd door middel van bacteriologisch onderzoek ook gevonden in de shampoo waarmee de hond werd gewassen net voor de ontwikkeling van de huidletsels, waardoor een oorzakelijk verband tussen het wassen en de huidletsels kon aangenomen worden.
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Weissenhorn W, Lutje Hulsik D, Hock M, Liu YY, Strokappe NM, Khattabi ME, Langedijk JP, McCoy LE, Forsman-Quigley A, Aasa-Chapman MM, Weiss RA, Verrips TC, Rutten L. A gp41 MPER-specific llama VHH requires a hydrophobic CDR3 determinant for neutralization but not for antigen recognition. Retrovirology 2012. [PMCID: PMC3441701 DOI: 10.1186/1742-4690-9-s2-p317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
| | | | - M Hock
- Grenoble University, Grenoble, France
| | - YY Liu
- Biomolecular Imaging (BMI), Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - NM Strokappe
- Biomolecular Imaging (BMI), Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - ME Khattabi
- Biomolecular Imaging (BMI), Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | | | - LE McCoy
- MRC Centre for Medical Molecular Virology, University College London, London, UK
| | - A Forsman-Quigley
- MRC Centre for Medical Molecular Virology, University College London, London, UK
| | - MM Aasa-Chapman
- MRC Centre for Medical Molecular Virology, University College London, London, UK
| | - RA Weiss
- MRC Centre for Medical Molecular Virology, University College London, London, UK
| | - TC Verrips
- Biomolecular Imaging (BMI), Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - L Rutten
- Biomolecular Imaging (BMI), Faculty of Science, Utrecht University, Utrecht, the Netherlands
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McCoy LE, Rutten L, Dekkers G, Blanchetot C, Strokappe NM, Forsman-Quigley A, Seaman MS, de Haard H, Verrips T, Weiss RA. Broad and potent neutralization of HIV-1 by human-llama fusion antibodies derived from immunized llamas. Retrovirology 2012. [PMCID: PMC3442071 DOI: 10.1186/1742-4690-9-s2-p94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Rutten L, Stevenson S. P04.20. Health informaton seeking, trust in information sources and use of complementary and alternative medicine. BMC Complement Altern Med 2012. [PMCID: PMC3373444 DOI: 10.1186/1472-6882-12-s1-p290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Rutten L. Patient outcome study in homeopathy applying Bayes’ theorem. Eur J Integr Med 2010. [DOI: 10.1016/j.eujim.2010.09.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Rutten L, Rutten P. [Irregularity is everything. Aspects of individual combination techniques]. Dent Labor (Munch) 1992; 40:607-9. [PMID: 1426446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Rutten L, Rutten P. [Complete dentures and fixed partials. Provocation for every ceramic worker]. Dent Labor (Munch) 1992; 40:75-7. [PMID: 1612174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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