Event calendar file
21-26 June 2021
León, Guanajuato
America/Mexico_City timezone
- sociedadmexicanasincrotron@gmail.com
Comité Organizador
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Contribution List
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54
Light Sources are multidisciplinary and interdisciplinary in character, a researchers true “playground”. Our adventure starts with forefront research and our a model to develop the next generation in STEM.
The Center for Biomolecular Structure (CBMS), National Synchrotron Light Source II (NSLS II), Brookhaven National Laboratory (BNL), addresses a wide range of environmental and life scien
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Presented by Dr. Vivian STOJANOFF
on
23 Jun 2021
at
10:00
Presented by Dr. María Elena MONTERO CABRERA, Dr. Luis Edmundo FUENTES COBAS
on
22 Jun 2021
at
16:45
Presented by Dr. María Elena MONTERO CABRERA, Dr. Luis Edmundo FUENTES COBAS
on
21 Jun 2021
at
14:30
Presented by Dr. María Elena MONTERO CABRERA, Dr. Luis Edmundo FUENTES COBAS
on
21 Jun 2021
at
16:45
Presented by Dr. María Elena MONTERO CABRERA, Dr. Luis Edmundo FUENTES COBAS
on
22 Jun 2021
at
14:30
Accelerating the transitions to low carbon economy calls for rigorous and relevant research in various disciplines including, among others, energy storage and conversion which are essential to face increasing sustainability challenges in tackling global warming and energy security. Indeed, the renewable energies request the use of efficient electric energy storage systems to maximize the profit an
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Presented by Dr. Giuliana AQUILANTI
on
24 Jun 2021
at
10:00
Nowadays, sensing devices to monitor CO2 concentrations in human exhalation and the environment are essential to identify acceptable limits, including ventilation rates in workplaces in order to optimize the return to classrooms, laboratories and offices during the global coronavirus pandemic (SARS CoV‐2). In this study, we combined ZnO and MWCNTs to obtain a composite material and analyze their
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Presented by Dr. R. LOZANO-ROSAS
on
23 Jun 2021
at
15:50
The aim of Structural Biology is to explain life processes in terms of macromolecular interactions in the cell. These interactions typically involve more than two partners, and can run up to dozens. A full description will need to characterize all structures on the atomic level, and the way these structures change in the process. Because of the crowded environment of the cell, such characterizatio
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Presented by Dr. Joachim FRANK
on
21 Jun 2021
at
09:30
The present work proposes an effective methodology to remove arsenic (As) present in groundwater for human consumption. Column experiments carried out with limestones outcropping in a groundwater As-rich area were found to effectively remove As, and have been considered as a sustainable treatment option. The study is focused on the aquifers at Zimapán town, Hidalgo, México, where the As concentr
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Presented by Dr. Antonio Salvador SOSA ISLAS
on
24 Jun 2021
at
15:20
The characterization of pellets of lignocellulosic residues from different crops of the Xichú, Gto. Different values of humidity were obtain like 4.58%±1%, eliminated organic material, remainder and total 45.36% ±4 %, 39.84% ±3% and 85.17% ±4.5% respectively, and inorganic material (ashes) 14.83% ±2%. These preliminary studies contribute to the possibility of the use of lignocellolosic insid
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Presented by Dr. Mayela Janeth ZAVALA SÁNCHEZ
on
24 Jun 2021
at
16:10
This study focuses on the assessment of the VA materials from the Moungo zone of the Cameroon volcanic line (CVL) between the mount Cameroon volcano and Mount Koupé, for their use as natural adsorbent to remove Pb(II) pollutant from aqueous solutions. The chemical speciation of lead adsorbed onto volcanic ashes based by means of X-ray absorption near edge spectroscopy (XANES) study is reported.
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Presented by Dr. Bolie BLIXEN BANG
on
24 Jun 2021
at
15:40
Bone is the second most implanted tissue only after blood, therefore the interest in developing new biomaterials that replace the functions of bone and cartilage are of great interest today. Hydroxyapatite, bioactive and piezoelectric ceramic, is the most common biomaterial used for bone tissue and it demonstrates that the incorporation of metallic oxides such as titanium oxide (TiO2), reflects an
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Presented by Dr. Ana Karen SÁNCHEZ-HERNÁNDEZ
on
24 Jun 2021
at
15:10
Management of industrial residues is a growing concern all around the world. In Mexico and specially in Sonora, mining is one of the most active and economically relevant industries, associated with environmental problems. Mine tailings contain potentially toxic elements (PTE), that are dispersed during long periods of time by erosion and weathering processes of the minerals they are in and suffer
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Presented by Dr. Arturo MORALES PÉREZ
on
24 Jun 2021
at
15:50
Las plantas generan energía mediante el ciclo de Benson-Calvin y consumen energía durante la glucólisis y la fosforilación oxidativa. Las rutas de producción y consumo de energía ocupan una serie de enzimas ancestrales y las reacciones enzimáticas se llevan a cabo tanto en el cloroplasto como en el citosol, bajo condiciones de estrés oxidativo muy distintas. El genoma nuclear de las plant
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Presented by Dr. Luis Gabriel BRIEBA DE CASTRO
on
25 Jun 2021
at
12:30
This talk will present some of the studies caried out using single crystal photocrystallography. Therefore, an introduction to this technique will be presented and the characteristics of synchrotron facilities that allow these studies to be carried out as well as some of the first studies reported in the literature of the use of photocrystallography.
This taljkwill focus mainly on the studies car
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Presented by Dr. María de Jesús ROSALES HOZ
on
26 Jun 2021
at
11:30
The maximum entropy method in combination with the Rietveld refinement method applied to the analysis (Rietveld-MEM analysis) of high-resolution x-ray diffraction (HR-XRD) is an important tool to elucidate the electron density distribution and chemical bonding nature of materials. In this work, we present the comparison of electron density distribution obtained from the Rietveld-MEM analysis for p
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Presented by Dr. Guillermo HERRERA-PÉREZ
on
23 Jun 2021
at
15:20
Abstract: In the last years, interest on renewables energies has increased and solar energy is one of most promising alternatives to get clean and worldwide available energy. Photovoltaic devices have been designed and applied to convert photons coming from Sun into electrons. Dye-Sensitized Solar Cells (DSSCs) are a good example because of its low-cost fabrication and good performance reaching ab
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Presented by Dr. Alfredo ROMERO CONTRERAS
on
24 Jun 2021
at
15:00
In the design of a synchrotron light source, it is required to put together many important pieces. It is important how magnets are chosen in the right order to guarantee that electrons are turning around the central orbit for long periods of time. Different models are being proposed to upgrade synchrotrons. This presentation will address some ideas developed during the last synchrotron upgrades. S
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Presented by Dr. Armando ANTILLÓN DÍAZ
on
25 Jun 2021
at
14:30
This work is devoted to reflecting on the very different features and dynamics of ion beam and synchrotron facilities and user communities. Whereas both suites of techniques are highly interdisciplinary and offer good science opportunities to similar fields of science, traditionally the two communities have lived in separate worlds, with scarce knowledge of one another and very limited collaborati
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Presented by Dr. Gastón GARCÍA LÓPEZ
on
25 Jun 2021
at
10:00
To explain and understand the chemical origin of life, theories have been postulated for decades and some of them have gone from mere postulates to evidences that have contributed to science in this direction. Several research groups have developed study models elucidating which could have been the first forms of life; in this sense, calcium, strontium, or barium silica carbonates have been synthe
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Presented by Dr. Cesia PÉREZ-AGUILAR
on
23 Jun 2021
at
15:30
The DIALS project provides an open-source toolbox for single crystal
diffraction image processing and analysis tasks. DIALS was originally
developed as a collaboration between Diamond Light Source, the
Lawrence Berkeley National Laboratory and CCP4 to address the needs of
advanced light sources, where rapidly-developing technology and
experimental methodology have changed the way modern cryst
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Presented by Dr. David WATERMAN
on
23 Jun 2021
at
11:30
The Sierra of Peña Blanca is found in the Aldama county region in the Chihuahua state, where most of the uranium natural deposits in Mexico are located. In the 1980s, mineral exploration was carried out with the molybdenum and uranium production by “Uranio de México (URAMEX)” company. However, in 1983, when the project was closed, the extracted and unprocessed ore was confined to rocky piles
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Presented by Dr. Carmen del Rocío CARAVEO-CASTRO
on
23 Jun 2021
at
14:50
Arsenic (As) concentration of 98 µg L-1 was found in Xichu River waters, which exceed the limits established by the WHO and the Mexican normativity NOM-127. This concentration is a potential risk for the population. It is necessary the search of available technology to remove As form drinking water in the most affected regions (rural communities), due to socioeconomic situation which they are in
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Presented by Dr. U. E. RODRÍGUEZ CASTREJÓN
on
24 Jun 2021
at
14:50
Fourth-generation synchrotrons, such as ESRF – EBS (Extremely Brilliant Source) have a very high brilliance of 5x1022 photons / s / mm2 / mrad2 / 0.1% BW. This light is produced in pulses of very short duration, which allows experiments with high spatial, energetic and temporal resolutions. However, high brilliance produces huge beam intensities. This leads us to investigate whether the samples
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Presented by Dr. O. LÓPEZ-LÓPEZ
on
23 Jun 2021
at
15:40
Naica´s ”Cueva de los Cristales” was discovered in 2000, and since then it has been considered particularly interesting for its beauty and for the challenges it poses to crystallography. This article focuses on the study of the wall-selenite interface by various techniques, particularly X-ray diffraction (XRD), scanning electron microscopy (SEM), with emphasis on micro-X-ray fluorescence (
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Presented by Dr. María E. FUENTES-MONTERO
on
24 Jun 2021
at
16:00
Over the past decade, the ALBA Synchrotron, the Spanish 3rd generation light source, has become an important pillar of the Spanish and European Research Area, providing research capabilities and a wide range of state-of-the-art instrumentation to a community of more than 6000 academic and industrial users. With its ten operating beamlines, while building three more, it is an essential tool for add
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Presented by Dr. Caterina BISCARI
on
24 Jun 2021
at
11:30
At the end of the XX Century, most investigations were focused on structural elucidation of large macromolecular complexes for applications in Medicine and Drug´s Design. Recently, techniques like X-ray diffraction, Small Angle X-ray Scattering (SAXS), X-ray Powder Diffraction, Neutron and Electron Diffraction techniques have emerged to obtain the 3D structure of important biological macromolecul
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Presented by Dr. Abel MORENO
on
22 Jun 2021
at
09:00
An overview of the initiative to establish an Advanced Light Source in Mexico in the last two decades is presented. The technical, political and economic challenges that this project needs to overcome are summarized. So far, the last four federal administrations have had a variety of responses and answers to our proposal. Yet a handful high level politicians have endorsed the project, the most rec
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Presented by Dr. Matías MORENO
on
21 Jun 2021
at
11:30
SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) is a third-generation 2.5 GeV synchrotron light source in Allan (Jordan) that was officially opened on 16 May 2017. It is the Middle East's first major international research centre and has been hosting users for experiments at its beamlines since July 2018. It is a cooperative venture by scientists and governm
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Presented by Dr. Andrea LAUSI
on
23 Jun 2021
at
12:30
The ID21 beamline at the European Synchrotron Radiation facility (ESRF) is dedicated to micro X-ray fluorescence (µXRF) and micro X-ray absorption spectroscopy (µXAS) in the tender X-ray range (2-10keV). It has an important scientific activity in the fields of life and environmental sciences, in particular for studying the fate of metals in the environment. This includes, e.g. the study of poll
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Presented by Dr. Hiram CASTILLO MICHEL
on
22 Jun 2021
at
12:30
Small Angle X-ray Scattering (SAXS) is a powerful technique that is used to obtain structural information of both ordered and disordered biological molecules at low resolution. It provides information about the size and shape of proteins and complexes, as well as about structural changes that occur at different experimental conditions [1]. SAXS requires small (milligram) amounts of purified and mo
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Presented by Dr. Dritan SILIQI
on
23 Jun 2021
at
09:00
RIXS is a photon-in-photon-out technique with unique characteristics that make it an ideal tool to study the electronic structure of compounds. It simultaneously probes the occupied and unoccupied electronic states, providing a detailed picture of projected density of states. RIXS is also sensitive to the oxidation state of the atom being probed, and also to the localization of the excited electro
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Presented by Dr. José Ignacio JIMÉNEZ MIER Y TERÁN
on
26 Jun 2021
at
10:00
Despite the COVID-19 pandemic the Elettra synchrotron radiation source and the FERMI free-electron laser were able to continue operation without any interruption. The reduced mobility of European users, however, has substantially affected the number of proposed experiments that could be carried out. Increased reliance on sample mail-in with experiments carried out by the facility staff for the ext
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Presented by Dr. Alfonso FRANCIOSI
on
21 Jun 2021
at
12:30
In hard condensed-matter-physics, there are hot topics that have been developed during the last twenty years: multiferroic materials, low dimensional magnetism, topological insulators, skyrmions, etc. In order to understand the microscopic physical behaviour of this kind of materials, the precise knowledge of the crystal and magnetic structure as a function of temperature or external fields is of
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Presented by Dr. Juan RODRÍGUEZ CARVAJAL
on
26 Jun 2021
at
09:00
Various applications of synchrotron light to the investigation of the structure-properties relationship in polycrystalline functional materials are described.
The first part of the presentation is devoted to structural analysis using various experiments with synchrotron light. High resolution diffraction experiments are shown to clarify crystal symmetry, two-dimensional diffraction measurements t
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Presented by Dr. Luis Edmundo FUENTES COBAS, Dr. María Elena MONTERO CABRERA
on
24 Jun 2021
at
09:00
Health is a critical factor for individuals, societies, and economies to thrive. Human heavy metal exposure is topical today, and has affected humanity since the first exploitation of metals, at the core of our civilization. This presentation highlights how synchrotron light, and X-ray Fluorescence (SR-XRF) and X-ray absorption fine structure (XAFS) in particular, can be used to explore not only t
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Presented by Dr. Kirsi LORENTZ
on
25 Jun 2021
at
11:30
Complex questions such as understanding mechanisms of metal homeostasis in biological systems can be addressed through use of hybrid methods which enable studies at different length and time scales. These approaches may involve complementary use of techniques like macromolecular crystallography which yields the structure at atomic resolution together. with spectroscopic imaging which may provide s
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Presented by Dr. Zehra SAYERS
on
25 Jun 2021
at
09:00
How did Rembrandt produce his impastos? Why some of the chrome yellows used by van Gogh in the Sunflowers do not show their original colour? Did Egyptian and Roman crafstmen use the same methods to produce opacified glasses? These are typically questions to which chemical analyses can contribute to answer.
Indeed, the application of analytical chemistry to decipher the composition and state of c
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Presented by Dr. Marine COTTE
on
22 Jun 2021
at
11:30
Para dar una caracterización cuantitativa de la textura cristalográfica (caso de simetría axial) mediante la difracción de rayos X y electrones, el grupo de cristalografía de CIMAV desarrolló un sistema de métodos y algoritmos. El procedimiento que siguen los algoritmos consiste en dos líneas: Tipo método de Rietveld y tipo método de Bunge. Los inspirados en el método de Rietveld son A
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Presented by Dr. Alejandro CAMPOS RODRÍGUEZ
on
23 Jun 2021
at
14:30
For centuries, tuberculosis has been a worldwide burden for human health, and gaps in our understanding of its pathogenesis has hampered the development of new treatments. ESX-1 is a complex machinery responsible for the secretion of virulence factors that manipulate the host response. Despite the importance of these secreted proteins for pathogenicity, only a few of them have been structurally an
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Presented by Dr. Nuria SÁNCHEZ-PUIG
on
23 Jun 2021
at
15:10
The current social challenges in energy storage have led to an increase in research to find new materials with improved characteristics to be used as anode in Li-ion batteries (LIBs) [1,2]. Silicon (Si) is one of the best candidates because of its high theoretical gravimetric capacity of 4200 mAhg-1, about ten times higher than that of graphite (372 mAhg-1). In addition, it is also the second most
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Presented by Dr. Erick ESPINOSA-VILLATORO
on
23 Jun 2021
at
15:00
Human serum transferrin (Tf) is a ~80 kDa glycoprotein that transits the blood plasma, whose function is to transport iron from its absorption site towards every cell through the blood vessels. Its structure consists of two homologous lobes, an N-terminal lobe and a C-terminal lobe, which can each bind a metallic ion, mainly Fe3+, through a coordination bond with octahedral geometry1–3. This imp
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Presented by Dr. Camila CAMPOS-ESCAMILLA
on
23 Jun 2021
at
14:40
Biomineral formation is a key process to understand the linkage between biological activity and sedimentary structures in the biosphere. Microbial systems have mediated the precipitation of carbonates in natural waters as early as ∼ 3,500 Ma ago (Krumbein 1983); and still today they are key participants in the formation of massive carbonate constructions in natural waters. Microscale has been a
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Presented by Dr. Patricia VALDESPINO
on
24 Jun 2021
at
15:30
This talk will attempt to see into the future of synchrotron data collection with a focus on macromolecular crystallography (MX) but not forgetting other fields of research which are enabled by synchrotron radiation. MX is a field with a nearly 90 year history of which the last 50 years have included work at synchrotron X-ray sources. To enlighten my futuristic crystal ball, I will take a brief re
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Presented by Prof. Elspeth GARMAN
on
26 Jun 2021
at
12:30
At present, the construction industry has a big challenge in favor of the environment, having among other objectives, reduce CO2 emissions, construction waste, and the use of natural aggregates. Therefore, to improve the durability and longevity of concrete, sustainably, conventional techniques are often used to analyze and characterize cementitious materials, aggregates, additives and admixtures,
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Presented by Dr. Daniel HERNÁNDEZ CRUZ
on
24 Jun 2021
at
12:30
El diseño de aceleradores de partículas es un área de investigación muy activa en los últimos años. Dependiendo del fin de la máquina, ajustar la dinámica de las partículas en la estructura magnética puede representar un problema no trivial. Es bien sabido que el análisis de la geometría del espacio fase, así como su dependencia con los parámetros del hamiltoniano, resulta complicado
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Presented by Dr. E. SÁNCHEZ
on
23 Jun 2021
at
16:00
In Chihuahua, an important source of environmental radioactivity is found in the Sierra Peña Blanca, in the center of the state. The site has about 70% of uranium reserves in Mexico. The uranium of Peña Blanca was exploited in the 80's. Due to the closure of operations, the extracted and unprocessed ore (hundreds of tons) was confined to rocky stacks, exposed to weathering. Subject to leaching,
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Presented by Dr. Victoria PÉREZ-REYES
on
24 Jun 2021
at
14:40
X-ray Absorption Fine Structure (XAFS) spectroscopy is one of the most used methods at synchrotron facilities. XAFS is divided into two regions: x-ray absorption near edge structure (XANES) and extended x-ray absorption fine structure (EXAFS). XANES is a region of spectra from just below absorption edges to 3050eV above edges. EXAFS includes higher energy region above XANES usually up to ~600-
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Presented by Dr. Hitoshi ABE
on
22 Jun 2021
at
10:00
