Article
Chemistry, Multidisciplinary
Annabel Rae, Keelan M. Byrne, Scott A. Brown, Alan R. Kennedy, Tobias Kramer, Robert E. Mulvey, Stuart D. Robertson
Summary: In this review, the structures and interactions between arylmethyl anions and alkali metals are explored. The study demonstrates that larger alkali metals interact with adjacent arene carbons, while introducing a nitrogen atom in the ring leads to charge redistribution onto the nitrogen atom and alters the coordination modes.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Materials Science, Coatings & Films
Shuang Zhang, Chuang Dong, Peter Haeussler
Summary: This article discusses the spherical-periodic order in the pair-correlation functions of crystalline systems, using simple crystal structures as examples. The spherical-periodic picture helps to understand the atomic density distribution and charge-neutral entities in crystal structures.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Chemistry, Multidisciplinary
Neil R. Judge, Leonie J. Bole, Eva Hevia
Summary: This study advances the understanding of using alkali-metal alkoxides as additives to organomagnesium reagents in Mg-Br exchange reactions. A series of mixed-ligand alkyl/alkoxide alkali-metal magnesiates has been prepared and their reactivity towards 2-bromoanisole has been evaluated. The alkali-metal effect on the reaction efficiency has been observed, with potassium magnesiate being the most efficient. Furthermore, the constitution of the exchange product has been studied, revealing the importance of reaction components in the stability of metalated intermediates.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Christoph Emeis, Sanjoy Kr Mahatha, Sebastian Rohlf, Kai Rossnagel, Fabio Caruso
Summary: This study combines ab initio calculations and ARPES to investigate the electron-plasmon interaction in highly doped semiconducting 1T-HfS2. Experimental results reveal the emergence of satellite spectral features near quasiparticle excitations, indicating coupling to bosonic excitations. First-principles calculations demonstrate that these features can be attributed to electronic coupling to carrier plasmons. Additionally, reduced screening at the surface enhances the electron-plasmon interaction and leads to the formation of plasmonic polarons.
Article
Chemistry, Multidisciplinary
Gerd M. Ballmann, Thomas X. Gentner, Alan R. Kennedy, Eva Hevia, Robert E. Mulvey
Summary: Rare examples of heavier alkali metal manganates have been synthesized and characterized, with the crystal structures of rubidium and cesium examples determined. These manganates form polymeric zig-zag chains through AM center dot center dot center dot pi-arene interactions. The preparation of these compounds requires the avoidance of Lewis base donor solvents, as the use of multidentate nitrogen donors leads to ligand scrambling. Additionally, new derivatives based on rubidium and cesium have been structurally authenticated, and a monomeric, dinuclear structure of sodium manganate has been isolated and characterized.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Engineering, Multidisciplinary
Zhang Ying, Bai QingGuo, Yang WanFeng, Zhang ZhongHua
Summary: Nanoporous metals have garnered attention as a new class of materials, but macroscopic brittle fracture during tensile tests hinders their practical use. Developing low-cost, highly ductile nanoporous materials is crucial. This study demonstrates that designing a film-substrate structure enhances the mechanical properties of nanoporous metals.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2021)
Article
Chemistry, Inorganic & Nuclear
Chaohong Jia, Yeye She, Yanhua Lu, Mengxiang Wu, Xiaohan Yang, Ling Chen, Yahong Li
Summary: In this study, a strategy for the synthesis of polynuclear lithium complexes was developed, using organolithium reagents as both metal sources and nucleophilic reagents. Various organolithium reagents were employed to react with ligands, resulting in the formation of a series of polynuclear lithium compounds. The significant feature of this work lies in the efficient synthesis of high-nuclearity lithium compounds and a variety of important amines.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Keith Izod, Atheer M. Madlool, Alex Craig, Paul G. Waddell
Summary: Different phosphido-borane complexes were synthesized using different solvents and reactants. Crystal structure analysis showed that some of these complexes formed polymer structures.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Zhuanfang Jing, Yongquan Zhou, Toshio Yamaguchi, Koji Ohara, Jianming Pan, Guangguo Wang, Fayan Zhu, Hongyan Liu
Summary: This study provides insights into the structure and recognition sequence of alkali metal ions (Li+, Na+, K+, Rb+, and Cs+) by 18-crown-6 in aqueous solutions. It is found that Li+, Na+, and K+ are located inside the crown ether, while Rb+ and Cs+ are located outside. The recognition sequence of alkali metal ions by 18-crown-6 in water is different from that in the gas phase, indicating the significant influence of the solvation medium on cation recognition.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Nanoscience & Nanotechnology
Suresh Maniyarasu, J. Chun-Ren Ke, Ben F. Spencer, Alex S. Walton, Andrew G. Thomas, Wendy R. Flavell
Summary: The addition of RbI plays a critical role in increasing the thermal stability of FA(1-x)Cs(x)PbI(3) by providing a source of I+ that fills iodine vacancy sites in the perovskite lattice. This leads to a fairly homogeneous distribution of both Cs+ and Rb+ in the surface layers, reducing surface iodide vacancies and ultimately improving PSC performance and stability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Seong Shik Kim, David N. Agyeman-Budu, Joshua J. Zak, Andrew Dawson, Qizhang Yan, Miguel Caban-Acevedo, Kamila M. Wiaderek, Andrey A. Yakovenko, Yiyi Yao, Ahamed Irshad, Sri R. Narayan, Jian Luo, Johanna Nelson Weker, Sarah H. Tolbert, Kimberly A. See
Summary: Using synchrotron-based transmission X-ray microscopy (TXM), researchers found that the capacity fade of LiNaFeS2 in Li-ion batteries is mainly due to particle fractures. Cryomilling was shown to improve the cycling performance of LiNaFeS2 by reducing the possibility of particle fracturing and increasing capacity retention.
CHEMISTRY OF MATERIALS
(2022)
Article
Environmental Sciences
Lorella Pascolo, Maria Pachetti, Anna Camillo, Alice Cernogoraz, Clara Rizzardi, Katarina Vogel Mikus, Fabrizio Zanconati, Murielle Salome, Vanessa Tardillo Suarez, Federico Romano, Gabriella Zito, Alessandra Gianoncelli, Giuseppe Ricci
Summary: This study reveals the abnormal accumulation of iron and co-localization of environmental metals in ovarian endometriomas of endometriosis patients, suggesting a potential role in the pathogenesis of endometriosis. The findings provide insights into the relationship between iron dysmetabolism, accumulation of environmental metals, and the development of endometriosis.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Marko Z. Vatamaniuk, Rong Huang, Zeping Zhao, Xin Gen Lei
Summary: Transition metals have essential roles in biological tissues, but some, like cadmium, can be highly toxic. Disturbances in metal balance caused by micronutrient deficiency, pollution or genetic factors can lead to malfunction and diseases. This study used synchrotron X-ray fluorescence microscopy and mice with altered antioxidant enzyme functions to demonstrate the potential of SXRF as a powerful tool for studying biologically relevant metal balance in the pancreas and liver of mice models with disturbed glucose homeostasis.
Article
Construction & Building Technology
Shaochun Ma, Huimin Xiao, Peng Bao
Summary: This paper studies the effects of different alkali concentrations on the mechanical properties of soil in the special geological environment of the Kaifeng region. The results show that increased alkali concentration leads to changes in soil deformation and strength characteristics, and the newly generated cementing material affects soil stability.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Geochemistry & Geophysics
Jordan Lubbers, Adam Kent, Douglas Meisenheimer, Dorthe Wildenschild
Summary: Interpretation of chemical zoning within igneous minerals is crucial in petrologic studies. 2D slices of 3D mineral systems often lead to a loss of zoning information, making it challenging to infer 3D geometries. Computed X-ray microtomography provides a high-resolution method to assess 3D zoning in minerals, particularly using sanidine with variations in Ba as a marker. The findings in this study have important implications for methodologies that rely on the interpretation of chemical zoning within minerals.
AMERICAN MINERALOGIST
(2023)
Article
Chemistry, Organic
Ramon Moreno-Corral, Herbert Hoepfl, Anatoly K. Yatsimirsky, Juan Carlos Galvez-Ruiz, Karen O. Lara
Article
Chemistry, Physical
Alfonso Xotlanihua-Flores, Pedro Montes-Tolentino, Sonia A. Sanchez-Ruiz, Galdina V. Suarez-Moreno, Juan Carlos Galvez-Ruiz, Rosalinda Contreras, Angelina Flores-Parra
JOURNAL OF MOLECULAR STRUCTURE
(2016)
Article
Plant Sciences
Enrique Wenceslao Coronado-Aceves, Carlos Velazquez, Ramon Enrique Robles-Zepeda, Manuel Jimenez-Estrada, Javier Hernandez-Martinez, Juan Carlos Galvez-Ruiz, Adriana Garibay-Escobar
PHARMACEUTICAL BIOLOGY
(2016)
Article
Chemistry, Applied
C. J. Perez-Martinez, Sergio Daniel Morales Chavez, T. del Castillo-Castro, Tania Ernestina Lara Ceniceros, M. M. Castillo-Ortega, D. E. Rodriguez-Felix, Juan Carlos Galvez Ruiz
REACTIVE & FUNCTIONAL POLYMERS
(2016)
Article
Biochemistry & Molecular Biology
Viviana Calvillo-Paez, Rogerio R. Sotelo-Mundo, Mario Leyva-Peralta, Juan Carlos Galvez-Ruiz, David Corona-Martinez, Ramon Moreno-Corral, Raymundo Escobar-Picos, Herbert Hopfl, Octavio Juarez-Sanchez, Karen Ochoa Lara
CHEMICO-BIOLOGICAL INTERACTIONS
(2018)
Article
Chemistry, Multidisciplinary
Judas Vargas-Durazo, Milagros Aguilar-Martinez, Adrian Ochoa-Teran, Hisila Santacruz-Ortega, Fernando Rocha Alonzo, Nohemi Gamez Meza, Juan Carlos Galvez-Ruiz
Review
Biotechnology & Applied Microbiology
Naun Lobo-Galo, Juan-Carlos Galvez-Ruiz, Ana P. Balderrama-Carmona, Norma P. Silva-Beltran, Eduardo Ruiz-Bustos
Summary: The emergence of COVID-19 has raised global health alerts, prompting the scientific community to explore various strategies for combating the infection. Focus lies on vaccine production, nanotechnology, drug repurposing, and bioactive molecules from natural sources, with goals of reducing research timelines and enhancing research quality.
Article
Plant Sciences
Ana Paola Balderrama-Carmona, Norma Patricia Silva-Beltran, Juan-Carlos Galvez-Ruiz, Saul Ruiz-Cruz, Cristobal Chaidez-Quiroz, Edgar Felipe Moran-Palacio
Article
Chemistry, Organic
Milagros Aguilar-Martinez, Judas Tadeo Vargas-Durazo, Adrian Ochoa-Teran, Hisila Santacruz-Ortega, Karen Ochoa-Lara, Arturo Zizumbo-Lopez, Juan Carlos Galvez-Ruiz
Summary: An efficient methodology for the synthesis of neutral reducing agents supported on Merrifield resin has been developed, leading to the successful generation of a library of 40 agents with high yields and reusability potential.
Review
Chemistry, Multidisciplinary
Norma Patricia Silva-Beltran, Marcelo Andres Umsza-Guez, Daniela Meria Ramos Rodrigues, Juan Carlos Galvez-Ruiz, Thiago Luiz de Paula Castro, Ana Paola Balderrama-Carmona
Summary: Propolis, a resinous substance collected by bees from plants, is a safe therapeutic option easily administered orally. Recent scientific evidence from Brazil and Mexico shows that while propolis from these countries have varied compositions, they share compounds with recognized biological activities. Propolis extracts inhibit growth of Gram-negative bacteria and show promising activities against cancer cells and fungi, but further research is needed on antiprotozoal activity and chemical contamination.
APPLIED SCIENCES-BASEL
(2021)
Review
Nutrition & Dietetics
Lidianys Maria Lewis Lujan, Mark F. McCarty, James J. Di Nicolantonio, Juan Carlos Galvez Ruiz, Ema Carina Rosas-Burgos, Maribel Plascencia-Jatomea, Simon Bernard Iloki Assanga
Summary: In patients with age-related macular degeneration (AMD), there are structural and functional defects in crucial retinal pigment epithelial (RPE) cells' mitochondria, along with deficient expression of Dicer enzyme. This deficiency increases the expression of Alu RNA, damaging mitochondria and inducing cell apoptosis, thereby driving the progression of dry AMD. It is proposed that up-regulating mitophagy and mitochondrial biogenesis (MB) can mitigate the adverse effects of Alu RNA on RPE cells, and activating Sirt1, AMPK, Nrf2, and PPAR alpha may be useful in this regard.
Article
Biochemistry & Molecular Biology
Lidianys Maria Lewis Lujan, Philipp Dorschmann, Charlotte Seeba, Tabea Thalenhorst, Johann Roider, Simon Bernard Iloki Assanga, Juan Carlos Galvez Ruiz, Teresa Del Castillo Castro, Ema Carina Rosas-Burgos, Maribel Plascencia-Jatomea, Josafat Marina Ezquerra Brauer, Alexa Klettner
Summary: Ommochromes extracted from cephalopod's skin have been found to inhibit age-related macular degeneration (AMD)-related factors such as oxidative stress, accumulation of advanced glycation end-products, and secretion of vascular endothelial growth factor and inflammatory cytokines. This discovery is important for further research on age-related macular degeneration.
Article
Biochemistry & Molecular Biology
Gustavo A. Zelada-Guillen, Jesus A. Rios-Arce, Mario A. Leyva-Peralta, Marcos Flores-Alamo, Juan Carlos Galvez-Ruiz, Kadiya Calderon, Martha V. Escarcega-Bobadilla
Summary: We synthesized and characterized organic Salphen compounds with bromine substituents at specific positions, both in symmetric and non-symmetric versions. The X-ray structure and full characterization of the new unsymmetrical varieties were described. For the first time, we found antiproliferative activity in metal-free brominated Salphen compounds tested on various cancer cell lines and a non-cancerous counterpart. Promising results were observed against prostate and colon adenocarcinoma cells, with selectivity up to 3-fold higher than the non-cancerous cells and 20-fold higher than doxorubicin controls.
CHEMISTRY & BIODIVERSITY
(2023)
Article
Oncology
Mario A. Leyva-Peralta, Ramon E. Robles-Zepeda, Rodrigo S. Razo-Hernandez, Laura P. A. Berber, Karen O. Lara, Eduardo Ruiz-Bustos, Juan C. Galvez-Ruiz
ANTI-CANCER AGENTS IN MEDICINAL CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Simon Bernard Iloki Assanga, Lidianys Maria Lewis Lujan, Juan Carlos Galvez Ruiz, Mark F. McCarty, Julian M. Cota-Arce, Claudia Lizeth Lara Espinoza, Armida Andrea Gil Salido, Daniela Fernandez Angulo
RESULTS IN CHEMISTRY
(2020)