Article
Chemistry, Physical
Shukai Wang, Shuaiyu Wang, Rong Liu, Linwei Sai, Lei Wang, Fengyu Li
Summary: In this study, a general strategy was proposed to assemble two-dimensional ideal Dirac semimetals using transition metal boride clusters. This strategy was illustrated by creating a thermodynamically stable 2D titanium diboride called 2c-TiB2, which was found to be a Dirac semimetal with an ideal Dirac cone at the Fermi level. Furthermore, this monolayer exhibited intersecting Dirac phonons.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Maxime Durelle, Sophie Charton, Frederic Gobeaux, Corinne Chevallard, Luc Belloni, Fabienne Testard, Sylvain Trepout, David Carriere
Summary: Crystallization from solution often involves transient, non-crystalline states such as reactant-rich liquid droplets and amorphous particles. In this study, the crystallization process of cerium oxalate was investigated and a metastable chemical equilibrium between liquid droplets and solid amorphous particles was observed. Contrary to expectations, reactant-rich droplets do not transform into amorphous solids, but instead, amorphous and reactant-rich liquid phases coexist for a certain period of time.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Oscar A. Torres-Matheus, R. Edwin Garcia, Catherine M. Bishop
Summary: A novel multiphase field model was used to analyze the phase coexistence of tetragonal and rhombohedral phases in Pb-free BZT-40BCT. The study predicted metastable coexistence between the two phases, with domain microstructures exhibiting faceted domain walls and curved T-R phase interfaces near the polymorphic phase boundary. The miniaturization of domain structures near the boundary is due to low interfacial energies and a pinning effect from a large metastable phase fraction.
Review
Chemistry, Physical
Zheng Wei, Qinqin Wang, Lu Li, Rong Yang, Guangyu Zhang
Summary: Monolayer MoS(2) as an emerging 2D semiconductor material has various promising applications. Epitaxy is a promising technique for producing high-quality, large-area MoS(2) with controllable properties. Future research will focus on large-scale films with large domain sizes and high domain alignments.
Article
Multidisciplinary Sciences
Hamed Almohammadi, Sandra Martinek, Ye Yuan, Peter Fischer, Raffaele Mezzenga
Summary: In the process of nucleation and growth, thermodynamics and kinetics play crucial roles in determining the composition, shape, structure and physical properties of heterogeneous colloidal systems. By selectively choosing colloidal systems and controlling phase separation, we can separate the effects of kinetics from thermodynamics and discover new physical phenomena. This approach enables the on-demand fabrication of multicomponent heterogeneous liquid crystals and opens up new research directions in multicomponent structured fluids.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jun Zhou, Zishen Wang, Shijie Wang, Yuan Ping Feng, Ming Yang, Lei Shen
Summary: This study reports a novel charge density wave that generates 2D ferromagnetism instead of suppressing it by forming interstitial anionic electrons as the charge modulation mechanism. This transition introduces a new magnetic form of CDWs, offering promising opportunities for exploring novel fundamental physics and advanced spintronics applications.
NANOSCALE HORIZONS
(2023)
Article
Polymer Science
Dong Zhou, Miguel Fuentes-Cabrera, Akash Singh, Raymond R. Unocic, Jan Michael Y. Carrillo, Kai Xiao, Yumeng Li, Bo Li
Summary: In this study, the interaction between atomic edges and polyethylene chains was investigated using advanced synthesis and molecular simulations. It was discovered that Mo-ZZ edges act as preferred nucleation sites and strongly interact with HDPE chains. The atomic structure of MoSe2 was found to influence its interactions with HDPE chains.
Article
Physics, Nuclear
Dennis Bonatsos, Andriana Martinou, S. K. Peroulis, T. J. Mertzimekis, N. Minkov
Summary: Systematics of B(E2) transition rates connecting the first excited 0(2)(+) state to the first excited 2(1)(+) state of the ground state band in even-even nuclei indicates that shape coexistence is expected in nuclei within certain ranges of nucleon numbers, as predicted by the dual shell mechanism of the proxy-SU(3) model.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2023)
Article
Instruments & Instrumentation
Sergey V. Adichtchev, Konstantin A. Okotrub, Alexey M. Pugachev, Irina V. Zaytseva, Nikolay V. Surovtsev
Summary: This study investigated binary phospholipid bilayers composed of DPPC using Raman spectroscopy and DSC, finding that certain features in Raman spectra can accurately indicate lipid phase and phase coexistence. It was discovered that the spectral characteristics of specific Raman lines can be used to detect ordered and disordered lipid phases coexisting within the DPPC concentration range. The results provide a robust label-free contactless approach for the detection of lipid phase separation with micrometer resolution.
APPLIED SPECTROSCOPY
(2021)
Article
Chemistry, Multidisciplinary
David J. Hynek, Raivat M. Singhania, James L. Hart, Benjamin Davis, Mengjing Wang, Nicholas C. Strandwitz, Judy J. Cha
Summary: The chemical composition of the substrate plays a crucial role in the nucleation and growth of MoTe2, with high quality monolayer 2H MoTe2 formed on Al2O3 (0001) and AlOx, while mixed phase 2H/1T' MoTe2 formed on SiO2. The study demonstrates the importance of substrate properties in controlling the phase transition of 2D materials beyond graphene.
Article
Optics
Haiyang Liu, Xuanli Zheng, Gaohong Liu, Jun Yin, Congming Ke, Weihuang Yang, Yaping Wu, Zhiming Wu, Xu Li, Chunmiao Zhang, Feiya Xu, Junyong Kang
Summary: A phase engineering strategy aided by resonant plasmonic coupling is proposed to manipulate the valley degree of freedom in transition metal dichalcogenides. Through the designed plasmonic array, the hybrid phase WSe2 exhibits enhanced circular polarization and valley polarization. Finite difference time domain simulations demonstrate consistent polarization effects between theory and experiment. The high polarizations are attributed to increased exciton generation and radiation efficiency, chiral electromagnetic field, and non-equilibrium spin distribution in the hybrid phase.
LASER & PHOTONICS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Egor D. Leshchenko, Jonas Johansson
Summary: This research suggests that in certain cases, the compositional independence of surface energy is crucial for the suppression of the miscibility gap, especially in the case of InAs and GaAs pairs. However, a significant difference in surface energies between the two materials may also lead to a significant modification of liquid-solid composition and complete suppression of the miscibility gap.
Article
Multidisciplinary Sciences
Sun-Woo Kim, Hanbit Oh, Eun-Gook Moon, Youngkuk Kim
Summary: Recently, layered kagome metals AV(3)Sb(5) have attracted attention for their unique properties and potential for designer quantum phases. In this study, the authors explore the mono-layered form of AV(3)Sb(5) and demonstrate its different symmetries compared to the three-dimensional bulk. They predict the presence of enriched van Hove singularities, leading to various competing instabilities such as charge density waves and superconductivity. These findings highlight the monolayer kagome metal as a promising platform for further investigation and potential applications in quantum materials.
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
S. F. Ebadzadeh, H. Goudarzi, M. Khezerlou
Summary: This study investigates the spin-singlet and spin-triplet superconducting correlations with a magnetic exchange field in monolayer MoS2, exploring the coexistence effect from the perspective of Andreev process. It is found that the impact of a magnetic exchange field on superconducting energy excitations differs significantly between s- and p-wave symmetries. The research also examines the dependence of Andreev reflection on the exchange field in a normal/ferromagnetic superconductor junction on top of a monolayer MoS2.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2021)
Article
Chemistry, Physical
Hua Wang, Huan Yuan, Qiang Hu, Keying Wu, Qiaoji Zheng, Dunmin Lin
Summary: By regulating the phase transition temperatures, the BT-xCZ ceramics exhibit a high piezoelectric constant and large electromechanical coupling factor. The doping of CaZrO3 (CZ) distorts the lattice of ceramics, leading to increased ferroelectricity and piezoelectricity. The domain structure of BT-xCZ ceramics further proves that high piezoelectricity is attributed to the multiphase coexistence.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Agustin Mangiarotti, Vanesa V. Galassi, Elida N. Puentes, Rafael G. Oliveira, Mario G. Del Popolo, Natalia Wilke
Article
Biochemistry & Molecular Biology
Matias A. Crosio, Matias A. Via, Candelaria Camara, Agustin Mangiarotti, Mario G. Del Popolo, Natalia Wilke
Article
Biochemistry & Molecular Biology
Agustin Mangiarotti, Dario M. Genovese, Christoph A. Naumann, Mariela R. Monti, Natalia Wilke
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2019)
Article
Plant Sciences
Natalia L. Cancelarich, Natalia Wilke, Maria L. Fanani, Daniel C. Moreira, Luis O. Perez, Eder Alves Barbosa, Alexandra Placido, Renato Socodato, Camila C. Portugal, Joao B. Relvas, Beatriz G. de la Torre, Fernando Albericio, Nestor G. Basso, Jose R. Leite, Mariela M. Marani
JOURNAL OF NATURAL PRODUCTS
(2020)
Article
Biochemistry & Molecular Biology
Micaela Peppino Margutti, Natalia Wilke, Ana Laura Villasuso
CHEMISTRY AND PHYSICS OF LIPIDS
(2020)
Article
Biochemistry & Molecular Biology
Kenneth M. F. Miasaki, Natalia Wilke, Joao Ruggiero Neto, Dayane S. Alvares
CHEMISTRY AND PHYSICS OF LIPIDS
(2020)
Article
Chemistry, Multidisciplinary
B. Caruso, N. Wilke, M. A. Perillo
Summary: By studying the physical properties and topographic stability of TG bulk structures in contact with interfaces, researchers have discovered that the formation of lipid droplets on the endoplasmic reticulum membrane is influenced by the properties of EPC and TG mixtures at the interface. The appearance of stable microscopic collapsed structures and their solvatochromism characteristics provide insight into the initial step of LD biogenesis and the oil-water interfacial tension of lenses formed on air-water Langmuir films.
Review
Biochemistry & Molecular Biology
Vanesa Viviana Galassi, Natalia Wilke
Summary: Cell membrane structure is mainly composed of lipids and embedded proteins, with their properties influenced by lipid behavior and interactions with other factors. The lipid bilayer consists of a soft, dynamic and viscoelastic structure, affected by lipid composition, temperature, pH, etc.
Article
Biophysics
Julio Pusterla, Juan Martin Hernandez, Natalia Wilke, Emanuel Schneck, Rafael G. Oliveira
Summary: In this study, purified myelin membranes (PMM) were observed as monomolecular films at different lateral pressures on three specific aqueous solutions, revealing distinct phase behaviors with the presence or absence of salts. The Liquid Ordered (LO) phase was found to be more reflective and thicker at lower lateral pressures, while less reflective and thinner at higher pressures. Additionally, the line tension of PMM monolayers at domain boundaries decreased as lateral pressure increased, and both line tension and thickness differences increased significantly when calcium was present in the subphase, suggesting a stabilizing effect of divalent cations on phase separation in PMM monolayers.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Dayane S. Alvares, Matias Crosio, Natalia Wilke
Summary: Hopanoids are proposed as sterol surrogates in some bacteria, and their effects on lipid membranes were studied, particularly focusing on the location and effects of hopene in the membrane. The presence of hopene significantly affected the stiffness, shear viscosity, and bending dynamics of the membranes in comparison with pure phospholipid membranes.
Article
Plant Sciences
Ana Carolina Vilchez, Micaela Peppino Margutti, Matias Reyna, Natalia Wilke, Ana Laura Villasuso
Summary: The study compared the lipid profile in barley roots under chilling stress and subsequent recovery, revealing that lipid metabolism and editing were affected by cold stress, with acyl-editing of phosphatidic acid possibly being a regulatory mechanism for cold tolerance in barley.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Pharmacology & Pharmacy
Candelaria Ines Camara, Matias Ariel Crosio, Ana Valeria Juarez, Natalia Wilke
Summary: Dexamethasone and Dexamethasone phosphate, synthetic glucocorticoids, have been shown to reduce mortality in critically ill COVID-19 patients. Their effects on DMPC membranes were studied and both were found to penetrate and alter the mechanical properties of the membranes. Dexamethasone had a greater effect on surface pressure and induced the appearance of aggregates, while Dexamethasone phosphate decreased membrane deformability.
Article
Chemistry, Physical
Matias A. Via, Natalia Wilke, Luis S. Mayorga, Mario G. Del Popolo
Meeting Abstract
Biophysics
D. Alvares, J. Ruggiero Neto, N. Wilke
EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS
(2019)
Article
Chemistry, Multidisciplinary
Candelaria I. Camara, Florencia E. Lurgo, Maria Laura Fanani, Natalia Wilke
Article
Biochemistry & Molecular Biology
Raja Narayanasamy, Dandamudi Usharani, Ram Rajasekharan
Summary: This study investigated the role of ABHD16B in lipid metabolism. The overexpression of ABHD16B was found to decrease cellular triacylglycerol levels and increase phospholipid synthesis in yeast cells. Additionally, ABHD16B overexpression led to a reduction in lipid droplets and significant modifications in fatty acid composition. These findings highlight the importance of ABHD16B in lipid homeostasis and provide insights into its regulatory function in cellular lipid metabolism.
CHEMISTRY AND PHYSICS OF LIPIDS
(2024)
