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Brandwein M, Horev A, Bogen B, Fuks G, Israel A, Shalom G, Pinsk V, Steinberg D, Bentwich Z, Shental N, Meshner S. The role of sweat in the composition of skin microbiome: lessons learned from patients with congenital insensitivity to pain with anhidrosis. J Eur Acad Dermatol Venereol 2020; 34:e183-e186. [DOI: 10.1111/jdv.16170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- M. Brandwein
- Biofilm Research Laboratory Institute of Dental Sciences Faculty of Dental Medicine The Hebrew University of Jerusalem Jerusalem Israel
- Cutaneous Microbiology Laboratory The Skin Research Institute The Dead Sea and Arava Science Center Masada Israel
| | - A. Horev
- Division of Pediatrics Soroka University Medical Center Yavne Israel
- Faculty of Health Sciences Ben‐Gurion University of the Negev Beer‐Sheva Israel
| | - B. Bogen
- Department of Dermatology and Venereology Soroka University Medical Center Yavne Israel
| | - G. Fuks
- Department of Physics of Complex Systems Weizmann Institute of Science Rehovot Israel
| | - A. Israel
- Cutaneous Microbiology Laboratory The Skin Research Institute The Dead Sea and Arava Science Center Masada Israel
| | - G. Shalom
- Faculty of Health Sciences Ben‐Gurion University of the Negev Beer‐Sheva Israel
- Siaal Research Center for Family Medicine and Primary Care Beer‐Sheva Israel
| | - V. Pinsk
- Division of Pediatrics Soroka University Medical Center Yavne Israel
- Faculty of Health Sciences Ben‐Gurion University of the Negev Beer‐Sheva Israel
- Department of Pediatrics Samson Ashdod Assuta Medical Center Ashdod Israel
| | - D. Steinberg
- Biofilm Research Laboratory Institute of Dental Sciences Faculty of Dental Medicine The Hebrew University of Jerusalem Jerusalem Israel
| | - Z. Bentwich
- Cutaneous Microbiology Laboratory The Skin Research Institute The Dead Sea and Arava Science Center Masada Israel
| | - N. Shental
- Department of Mathematics and Computer Science Open University of Israel Raanana Israel
| | - S. Meshner
- Cutaneous Microbiology Laboratory The Skin Research Institute The Dead Sea and Arava Science Center Masada Israel
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Brandwein M, Fuks G, Israel A, Nejman D, Straussman R, Hodak E, Harari M, Steinberg D, Bentwich Z, Shental N, Meshner S. Identification of a unique Staphylococcus aureus ribosomal signature in severe atopic dermatitis. Br J Dermatol 2018; 179:1222-1224. [PMID: 29962038 DOI: 10.1111/bjd.16936] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M Brandwein
- Biofilm Research Laboratory, Institute of Dental Sciences, Faculty of Dental Medicine, The Hebrew University of Jerusalem, POB 12272, Jerusalem, 91120, Israel.,Cutaneous Microbiology Laboratory, The Skin Research Institute, The Dead Sea and Arava Science Center, Masada, 8693500, Israel
| | - G Fuks
- Department of Physics of Complex Systems, Weizmann Institute of Science, POB 26, Rehovot, 76100, Israel
| | - A Israel
- Cutaneous Microbiology Laboratory, The Skin Research Institute, The Dead Sea and Arava Science Center, Masada, 8693500, Israel
| | - D Nejman
- Department of Molecular Cell Biology, Weizmann Institute of Science, POB 26, Rehovot, 76100, Israel
| | - R Straussman
- Department of Molecular Cell Biology, Weizmann Institute of Science, POB 26, Rehovot, 76100, Israel
| | - E Hodak
- Department of Dermatology, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
| | - M Harari
- Cutaneous Microbiology Laboratory, The Skin Research Institute, The Dead Sea and Arava Science Center, Masada, 8693500, Israel
| | - D Steinberg
- Biofilm Research Laboratory, Institute of Dental Sciences, Faculty of Dental Medicine, The Hebrew University of Jerusalem, POB 12272, Jerusalem, 91120, Israel
| | - Z Bentwich
- Cutaneous Microbiology Laboratory, The Skin Research Institute, The Dead Sea and Arava Science Center, Masada, 8693500, Israel
| | - N Shental
- Department of Mathematics and Computer Science, The Open University of Israel, POB 808, Raanana, 4353701, Israel
| | - S Meshner
- Cutaneous Microbiology Laboratory, The Skin Research Institute, The Dead Sea and Arava Science Center, Masada, 8693500, Israel
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Glaria A, Soulé S, Hallali N, Ojo WS, Mirjolet M, Fuks G, Cornejo A, Allouche J, Dupin JC, Martinez H, Carrey J, Chaudret B, Delpech F, Lachaize S, Nayral C. Silica coated iron nanoparticles: synthesis, interface control, magnetic and hyperthermia properties. RSC Adv 2018; 8:32146-32156. [PMID: 35547528 PMCID: PMC9085846 DOI: 10.1039/c8ra06075d] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [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: 07/17/2018] [Accepted: 09/09/2018] [Indexed: 12/02/2022] Open
Abstract
This work provides a detailed study on the synthesis and characterization of silica coated iron nanoparticles (NPs) by coupling Transmission Electronic Microscopy (TEM), X-ray Photoelectron Spectroscopy (XPS) and magnetic measurements. Remarkably, iron NPs (of 9 nm of mean diameter) have been embedded in silica without any alteration of the magnetization of the iron cores, thanks to an original protocol of silica coating in non alcoholic medium. Tuning the synthesis parameters (concentration of reactants and choice of solvent), different sizes of Fe@SiO2 composites can be obtained with different thicknesses of silica. The magnetization of these objects is fully preserved after 24 h of water exposure thanks to a thick (14 nm) silica layer, opening thus new perspectives for biomedical applications. Hyperthermia measurements have been compared between Fe and Fe@SiO2 NPs, evidencing the self-organization of the free Fe NPs when a large amplitude magnetic field is applied. This phenomenon induces an increase of heating power which is precluded when the Fe cores are immobilised in silica. High-frequency hysteresis loop measurements allowed us to observe for the first time the increase of the ferrofluid susceptibility and remanence which are the signature of the formation of Fe NPs chains. A novel method has been developed for the silica coating of iron nanoparticles while preserving the magnetic properties.![]()
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Affiliation(s)
- A. Glaria
- LPCNO
- Université de Toulouse
- CNRS
- INSA
- UPS
| | - S. Soulé
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux
- Université de Pau et des Pays de l’Adour
- Hélioparc
- F-64053 Pau
- France
| | | | - W.-S. Ojo
- LPCNO
- Université de Toulouse
- CNRS
- INSA
- UPS
| | | | - G. Fuks
- LPCNO
- Université de Toulouse
- CNRS
- INSA
- UPS
| | | | - J. Allouche
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux
- Université de Pau et des Pays de l’Adour
- Hélioparc
- F-64053 Pau
- France
| | - J. C. Dupin
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux
- Université de Pau et des Pays de l’Adour
- Hélioparc
- F-64053 Pau
- France
| | - H. Martinez
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux
- Université de Pau et des Pays de l’Adour
- Hélioparc
- F-64053 Pau
- France
| | - J. Carrey
- LPCNO
- Université de Toulouse
- CNRS
- INSA
- UPS
| | | | | | | | - C. Nayral
- LPCNO
- Université de Toulouse
- CNRS
- INSA
- UPS
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Nguyen R, Jouault N, Zanirati S, Rawiso M, Allouche L, Fuks G, Buhler E, Giuseppone N. Core-shell inversion by pH modulation in dynamic covalent micelles. Soft Matter 2014; 10:3926-3937. [PMID: 24699990 DOI: 10.1039/c4sm00072b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Dynamic covalent surfactants have been obtained by the reversible condensation of a hydrophobic aldehyde (ended by an ionic tip) with various neutral polyethylene glycol based hydrophilic amines. In water, the duality between the two hydrophilic domains (charged and neutral) leads to their segregation when the surfactants are self-assembled within micelles. Depending on the number of polyethylene glycol units, a core-shell inversion leading to a switching orientation of the ionic tips from the inside to the outside of the micelles has been demonstrated by a combination of scattering techniques. In competition experiments, when several amines of different pKas and hydrophilic polyethylene glycol chains are competing for the same aldehyde, it becomes possible to trigger this core-shell inversion by pH modulation and associated dynamic constitutional reorganization.
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Affiliation(s)
- R Nguyen
- Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France.
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Meffre A, Mehdaoui B, Fuks G, Lacroix L, Lachaize S, Carrey J, Nayral C, Delpech F, Gougeon M, Respaud M, Chaudret B. R106: Nanoparticules de fer(0) pour une application en hyperthermie magnétique. Bull Cancer 2010. [DOI: 10.1016/s0007-4551(15)31025-0] [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: 11/24/2022]
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