Article
Materials Science, Multidisciplinary
M. Vollmer, S. Degener, A. Bolender, A. Bauer, A. Liehr, A. Stark, N. Schell, P. Barriobero-Vila, G. Requena, T. Niendorf
Summary: A recently developed strategy for promoting abnormal grain growth during cyclic heat treatment has the potential to manufacture single crystals with a size of several centimeters. However, there is still a lack of detailed understanding of the elementary mechanisms involved in this kind of abnormal grain growth. This study provides time resolved insights into the interplay of these mechanisms for the first time, using in situ synchrotron high energy X-ray diffraction analysis. The results not only deepen our understanding of abnormal grain growth, but also lay the foundation for improving the efficiency of the cyclic heat treatment process and obtaining even larger single crystals.
Article
Chemistry, Physical
Franz Eckelt, Patrick Rothweiler, Frederic Braun, Lukas Voss, Ankica Saric, Martina Vrankic, Dirk Luetzenkirchen-Hecht
Summary: This study investigates the formation of ZnO nanomaterials from different Zn acetylacetonate precursor solutions under different temperature and solvent conditions using X-ray diffraction and X-ray absorption spectroscopy. The results show that the efficiency and crystal orientation of ZnO formation are strongly influenced by the reaction temperature and solvent type.
Article
Chemistry, Multidisciplinary
Paolo P. Mazzeo, Michele Prencipe, Torvid Feiler, Franziska Emmerling, Alessia Bacchi
Summary: Mechanochemistry is a sustainable and cost-effective synthetic technique widely used in crystal engineering for the synthesis of cocrystals. While the macroscopic aspects of grinding are well understood, the fundamental principles underlying mechanochemical cocrystallization at the microscopic level remain unclear.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Physics, Applied
H. B. Radousky, M. R. Armstrong, N. Goldman
Summary: The availability of pulsed X rays on short timescales has opened up new avenues of research in the physics and chemistry of shocked materials, while theoretical advancements have increased the predictive capability of models. This paper discusses recent experimental results and developments in theory and modeling to address complex situations, as well as the potential impact of new platforms and increased beam time on the future direction of the field.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Crystallography
Shinobu Aoyagi, Ayumi Aoyagi, Hiroaki Takeda, Hitoshi Osawa, Kazushi Sumitani, Yasuhiko Imai, Shigeru Kimura
Summary: Lead-containing relaxor ferroelectrics exhibit significant piezoelectric capabilities due to their heterogeneous structures. Time-resolved nanobeam X-ray diffraction reveals the local lattice strain and Bragg intensity distributions under an alternating electric field, demonstrating the presence of nanodomains with different responses within the measured local area. The dynamic motion of nanodomains in the heterogeneous structure enables large piezoelectric lattice strain and fatigue-free ferroelectric polarization switching.
Article
Nanoscience & Nanotechnology
Gyanendra Panchal, Anjali Panchwanee, Manish Kumar, Katharina Fritsch, Ram Janay Choudhary, Deodutta Moreshwar Phase
Summary: By controlling the number of laser shots from two constituent phase targets in pulsed laser deposition film growth, the microstructures in vertically aligned nanocomposite thin films can be effectively tuned, leading to significantly enhanced magnetoresistance and modulated in-plane exchange bias. Additionally, a unique perpendicular exchange bias effect is observed in these heterostructures, showcasing an enhanced perpendicular exchange bias field.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Kristoffer Visti Graae, Poul Norby
Summary: Research has found that the rechargeability of Zn-air batteries is affected by phase transitions and morphology changes. Only a small portion of the anode can be accessed during discharge, while a larger portion of the anode can undergo simultaneous changes during charge, limiting the battery's rechargeability.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Multidisciplinary Sciences
Gisela Branden, Richard Neutze
Summary: Conformational changes within biological macromolecules regulate chemical reactions in living cells. Time-resolved crystallography can reveal these changes in detail, while serial crystallography approaches are now being routinely used for studying macromolecules. Recent progress includes visualizing ultrafast and slower time-scale structural changes in proteins like bacteriorhodopsin and photosystem II.
Article
Chemistry, Physical
Antonis Vamvakeros, Dorota Matras, Thomas E. Ashton, Alan A. Coelho, Hongyang Dong, Dustin Bauer, Yaroslav Odarchenko, Stephen W. T. Price, Keith T. Butler, Olof Gutowski, Ann-Christin Dippel, Martin von Zimmerman, Jawwad A. Darr, Simon D. M. Jacques, Andrew M. Beale
Summary: Synchrotron high-energy X-ray diffraction computed tomography has been employed to investigate the cycling performance of commercial cylindrical Li-ion batteries for the first time, showing its potential in detecting internal battery structure and chemical composition.
Article
Chemistry, Physical
Ashley Weiland, Matthew G. Frith, Saul H. Lapidus, Julia Y. Chan
Summary: Flux growth synthesis is an advantageous method for growing single crystals of both congruently melting and metastable phases. Determining synthetic parameters for new crystalline phases is complex, requiring consideration of factors such as starting material purity, morphology, and heating profile variables. In situ monitoring of crystallite growth can elucidate reaction intermediates and growth mechanisms.
CHEMISTRY OF MATERIALS
(2021)
Article
Engineering, Mechanical
Yuxiao Li, Jiawei Huang, Duan Fan, Lei Lu, Bingbing Zhang, Tao Zhong, Bo Dai, Siwei Zhang, Ye Tao, Yiyang Zhang, Sen Chen, Sheng-Nian Luo
Summary: In this study, deformation twinning in single-crystal Mg under different tension directions and high strain rates was investigated using in situ, time-resolved synchrotron X-ray diffraction. The findings reveal the mechanism and deformation anisotropy of extension twinning in Mg, which is important for understanding the deformation behavior of Mg.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Multidisciplinary Sciences
Lorenzo Massimi, Samuel J. Clark, Sebastian Marussi, Adam Doherty, Saurabh M. Shah, Joachim Schulz, Shashidhara Marathe, Christoph Rau, Marco Endrizzi, Peter D. Lee, Alessandro Olivo
Summary: This work presents the application of a time resolved multi-contrast beam tracking technique to study the melting and solidification process in metals. The technique allows retrieval of three contrast channels with millisecond time resolution. The results show that the additional contrast channels provide valuable information for observing density variations and surface roughness formation.
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
Brandon He, Lauren K. Macreadie, James Gardiner, Shane G. Telfer, Matthew R. Hill
Summary: Rapid synthesis of phase pure and highly crystalline multicomponent MOFs can be achieved using continuous flow chemistry. Key differences in the formation mechanisms between ternary UMCM-1 and quaternary MUF-7 have been uncovered, providing insights into MOFs formation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Multidisciplinary Sciences
C. Mariette, M. Lorenc, H. Cailleau, E. Collet, L. Guerin, A. Volte, E. Trzop, R. Bertoni, X. Dong, B. Lepine, O. Hernandez, E. Janod, L. Cario, V. Ta Phuoc, S. Ohkoshi, H. Tokoro, L. Patthey, A. Babic, I. Usov, D. Ozerov, L. Sala, S. Ebner, P. Bohler, A. Keller, A. Oggenfuss, T. Zmofing, S. Redford, S. Vetter, R. Follath, P. Juranic, A. Schreiber, P. Beaud, V. Esposito, Y. Deng, G. Ingold, M. Chergui, G. F. Mancini, R. Mankowsky, C. Svetina, S. Zerdane, A. Mozzanica, A. Bosak, M. Wulff, M. Levantino, H. Lemke, M. Cammarata
Summary: Researchers have used femtosecond powder X-ray diffraction to study the transition from semiconductor to metal in Ti3O5 nanocrystals, finding that strain waves and electronic precursor phenomena determine the transformation pathway. The study demonstrates that in nanocrystals, picosecond switching occurs simultaneously with the propagating acoustic wavefront.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Geo Paul, Enrico Boccaleri, Claudio Cassino, Daniela Gastaldi, Luigi Buzzi, Fulvio Canonico, Leonardo Marchese
Summary: The study explores the early hydration behavior of ye'elimite in the presence or absence of calcium sulfate. Different rates of hydration product formation were observed depending on the presence of calcium sulfate. Transient species like ettringite, monosulfate, and aluminum hydroxide gel were detected during hydration stages.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Joseph F. Moore, Erwan Paineau, Pascale Launois, Milo S. P. Shaffer
Summary: Research on imogolite nanotube fibers reveals that the aspect ratio of the nanotubes plays a critical role in the spinning process, with longer nanotubes making the spinning process easier. Additionally, the study shows that the tensile behavior of imogolite nanotube fibers is strongly influenced by relative humidity, with lower humidity leading to a higher modulus.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Noel Essey N'Guessan, Emmanuel Joussein, Alexandra Courtin-Nomade, Erwan Paineau, Marilyne Soubrand, Olivier Grauby, Valentin Robin, Coelho Diogo Cristina, Delphine Vantelon, Pascale Launois, Patrice Fondaneche, Sylvie Rossignol, Nathalie Texier-Mandoki, Xavier Bourbon
Summary: This study investigates the dissolution mechanisms of kaolinite particles in alkaline media through aluminum and silicon leaching, revealing the impact of crystallinity and cations on reactivity. The results show that poorly crystallized kaolinites have higher dissolution rates, and the nature of the cation significantly affects the degree of dissolution, suggesting different mechanisms depending on the cations, such as uniform dissolution from edges in the presence of KOH and oriented edges dissolution with NaOH.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Physical
Geoffrey Monet, Stephan Rouziere, Delphine Vantelon, Cristina Coelho Diogo, David Maurin, Jean-Louis Bantignies, Pascale Launois, Erwan Paineau
Summary: This study provides a complete analysis of the structural transformation of single and double-walled aluminogermanate nanotubes at high temperatures. Through X-ray scattering and spectroscopy experiments, the evolution of aluminum and germanium atoms' coordination during the deformation process was studied, and a mechanism based on atomic jump processes for major structural reorganization was proposed.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Cyrille Hamon, Emmanuel Beaudoin, Pascale Launois, Erwan Paineau
Summary: The study successfully synthesized additive-free noble metal nanoparticles on the surface of charged inorganic nanotubes, while observing the spontaneous formation of liquid crystal phases induced by the nanotubes. The average interparticle distance in the resulting hybrids can be easily modulated by controlling electrostatic interactions.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Geriatrics & Gerontology
Hester Colboc, Juliette Fontaine, Dominique Bazin, Vincent Frochot, Emmanuel Letavernier, Michel Daudon, Naomi Laporte, Stephan Rouziere, Michael Reby, Agnes Galezowski, Christine Forasassi, Sylvie Meaume
Summary: DC in older patients with leg ulcers were associated with venous insufficiency, Pseudomonas aeruginosa colonization, longer healing time, hypercalcemia, and composed mainly of calcium-phosphate apatite associated with zinc. Microorganisms and inflammatory processes seem to play a role in DC formation, suggesting early management of venous insufficiency, treatment of chronic bacterial colonization, and use of calcium-solubilizing drugs as rational strategies for managing calcified leg ulcers in older patients.
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
(2022)
Article
Polymer Science
Xiang Shi, Pierre-Antoine Albouy, Pascale Launois
Summary: This study presents a different view that the evolution of X-ray patterns reflects changes in crystalline texture rather than polymorphism. This enables a quantitative description of X-ray fiber patterns but also highlights some fundamental structural issues.
Article
Chemistry, Physical
Gaelle Martin-Gassin, Erwan Paineau, Pascale Launois, Pierre-Marie Gassin
Summary: This study investigates the organization of water molecules around Imogolite nanotubes using the nonlinear optical technique of polarization resolved second harmonic scattering (SHS). The results demonstrate that water organization depends on the electric field induced by the nanotube walls and the ionic strength of the suspension.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Inorganic & Nuclear
S. Rouziere, V Baledent, E. Paineau, E. Elkaim, T. Bizien, L. Nataf, Y. Pan, P. Launois
Summary: We performed in situ pressure experiments on aluminogermanate nanotubes using X-ray scattering and absorption spectroscopy measurements. The effects of morphology, organization, and functionalization on the structural transformations under hydrostatic pressure below 10 GPa were investigated. It was found that isolated nanotubes exhibit radial deformations, while bundled nanotubes undergo ovalization and hexagonalization. Radial collapse was observed in single-walled nanotubes but not in double-walled nanotubes. The collapse onset pressure value was influenced by the transmitting pressure medium used. The axial Young's moduli of different types of nanotubes were determined.
INORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Mengli Ding, Jingwen Qiu, Stephan Rouziere, Christophe Rihouey, Luc Picton, Ruxandra Gref
Summary: Due to their flexible composition, large surface areas, versatile surface properties, and degradability, nanoscale metal organic frameworks (nano MOFs) are drawing significant attention in nanomedicine. In particular, iron trimesate MIL-100 (Fe) is extensively studied in drug delivery. The challenging synthesis of room-temperature (RT) MIL100 has been addressed by using acetic acid as a modulator and non-toxic cyclodextrin-based coatings for stability. RT MIL100 obtained using acetic acid showed good colloidal stability, low cytotoxicity, and high drug payload efficiency, making it suitable for cancer therapy.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Arianna D'Angelo, Erwan Paineau, Stephan Rouziere, Erik Elkaim, Claire Goldmann, Damien Toquer, Stephane Rols, Pascale Launois
Summary: In this study, the structure of synthetic imogolite nanotubes was reinvestigated and it was found that the sample consisted of a mixture of nanotubes with N = 13 and N = 14. The study suggests that the nanotubes undergo significant deformation when assembled in bundles in their dry state, which needs to be considered in the analysis of measured diffractograms.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Joseph F. Moore, Erwan Paineau, Pascale Launois, Milo S. P. Shaffer
Summary: Imogolite nanotubes (INTs) form transparent aqueous liquid-crystalline solutions with strong birefringence and X-ray scattering power. In this study, the wet spinning of pure INTs into fibers was studied using in situ polarized optical microscopy, revealing the influence of various process variables on the structure and mechanical properties. Tapered spinnerets were found to be more effective than thin cylindrical channels in forming homogeneous fibers, and the washing step significantly affected the structure and properties of the fibers. The research also demonstrated the successful cross-linking of INT solutions using multivalent anions, resulting in robust gels with potential applications in other fields.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Dominique Bazin, Ivan T. Lucas, Stephan Rouziere, Erik Elkaim, Cristian Mocuta, Solenn Reguer, David G. Reid, Jeremie Mathurin, Alexandre Dazzi, Ariane Deniset-Besseau, Margaux Petay, Vincent Frochot, Jean-Philippe Haymann, Emmanuel Letavernier, Marie-Christine Verpont, Eddy Foy, Elise Bouderlique, Hester Colboc, Michel Daudon
Summary: This paper introduces an analysis procedure for abnormal deposits in human tissues, starting from in vivo characterization and ending at the nanoscale using major instrumentation. It describes four analytical steps and the corresponding techniques and instruments used in each step.
COMPTES RENDUS CHIMIE
(2022)
Article
Chemistry, Multidisciplinary
Hester Colboc, Philippe Moguelet, Emmanuel Letavernier, Vincent Frochot, Jean-Francois Bernaudin, Raphael Weil, Stephan Rouziere, Patricia Senet, Claude Bachmeyer, Naomi Laporte, Ivan Lucas, Vincent Descamps, Reyhan Amode, Florence Brunet-Possenti, Nicolas Kluger, Lydia Deschamps, Arnaud Dubois, Solenn Reguer, Andrea Somogyi, Kadda Medjoubi, Matthieu Refregiers, Michel Daudon, Dominique Bazin
Summary: Characterization of skin deposits associated with various skin diseases using different physico-chemical techniques provides an opportunity to improve diagnosis, understand pathogenesis, and explore therapeutic interventions.
COMPTES RENDUS CHIMIE
(2022)
Article
Chemistry, Physical
Gaelle Martin-Gassin, Erwan Paineau, Pascale Launois, Pierre -Marie Gassin
Summary: In this study, the organization of water around imogolite nanotubes in solution was investigated using the nonlinear optical technique of polarization resolved second harmonic scattering (SHS). The results showed that the water organization was determined by the electric field induced by the nanotube walls and was strongly dependent on the ionic strength of the suspension.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
