A5083191193- Metal complexes synthesis and properties
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Molecular Sensors and Ion Detection
- Supramolecular Chemistry and Complexes
- Organometallic Compounds Synthesis and Characterization
- Lanthanide and Transition Metal Complexes
- RNA Interference and Gene Delivery
- Synthesis and Properties of Aromatic Compounds
- Free Radicals and Antioxidants
- Crystallography and molecular interactions
- Invertebrate Immune Response Mechanisms
- Molecular Junctions and Nanostructures
- Essential Oils and Antimicrobial Activity
- DNA and Nucleic Acid Chemistry
- Metal-Organic Frameworks: Synthesis and Applications
- Porphyrin and Phthalocyanine Chemistry
- Biochemical and Molecular Research
- Bee Products Chemical Analysis
- Molecular spectroscopy and chirality
- Enzyme function and inhibition
- Energy Load and Power Forecasting
- Magnetism in coordination complexes
- Insect and Pesticide Research
- Insect symbiosis and bacterial influences
Universidad de Sonora
2015-2024
Universidad de Hermosillo
2020
University of Arizona
1998-1999
To evaluate the antibacterial and free-radical scavenging (FRS) activities of propolis collected from three different areas Sonoran Desert in northwestern Mexico [Pueblo de Alamos (PAP), Ures (UP) Caborca (CP)].The FRS were determined by broth microdilution method DPPH (1,1-diphenyl-2-picrylhydracyl) assay, respectively. Propolis samples had activity against only Gram-positive bacteria. The UP sample showed highest Staphylococcus aureus [minimal inhibitory concentration (MIC) 100 microg...
In this study, we have analyzed the chemical composition and antiproliferative activity of propolis from three different arid semiarid regions Sonora, Mexico. We identified quantitated main constituents by HPLC-MS. The most abundant were pinocembrin, pinobanksin 3-acetate, chrysin. Sonoran had a strong on both murine human cancer cell lines in concentration-dependent manner. CAPE, galangin, xanthomicrol chrysin showed significant cells tested. DNA harvested cultures treated with exhibited...
A new copper(II) coordination polymer was synthesized from the l-isoleucine-Schiff base and characterized by elemental analysis, Fourier transform infrared (FT-IR) spectroscopy, ultraviolet–visible (UV–vis) single-crystal X-ray diffraction (XRD) electronic paramagnetic resonance, thermogravimetric analysis. XRD analysis confirmed square planar geometry of metallic centers a zipper-like structure. Vibrational, electronic, spectroscopies thermal were consistent with crystal Hirshfeld surface...
Proteins suffer changes in their tertiary structure when they are immobilized, and enzymatic activity is affected due to the low biocompatibility of some supporting materials. In this work immobilization lysozyme on carbon nanotubes previously functionalized by microwave irradiation was studied. The effectiveness microwave-assisted acid treatment evaluated XPS, TEM, Raman FTIR spectroscopy. carboxylic modification nanotube surfaces fast, simple feasible method allowed physical adsorption...
In this manuscript, distinct approaches were used in order to obtain the best electrical power estimation from photovoltaic systems located at different selected places Mexico. Multiple Linear Regression (MLR) and Gradient Descent Optimization (GDO) applied as statistical methods they compared against an Adaptive Neuro-Fuzzy Inference System (ANFIS) intelligent technique. The data gathered involved solar radiation, outside temperature, wind speed, daylight hour power; collected on-site...
Doxorubicin (Dox) is the most widely used chemotherapeutic agent and considered a highly powerful broad-spectrum for cancer treatment. However, its application compromised by cumulative side effect of dose-dependent cardiotoxicity. Because this, targeted drug delivery systems (DDS) are currently being explored in an attempt to reduce Dox systemic side-effects. In this study, DDS targeting hepatocellular carcinoma (HCC) has been designed, specifically asialoglycoprotein receptor (ASGPR)....
A chelating cyclophane has been synthesized by cyclocondensation of two ethylenediaminetetraacetic (EDTA) units with p-phenylenediamine units: the resulting is 2,9,18,25-tetraoxo-4,7,20,23-tetrakis(carboxymethyl)-1,4,7,10,17,20,23,26-octaaza[10.10]paracyclophane, abbreviated as (bis-edtapdn)H(4). Cyclocondensation EDTA and 1,5-diaminonaphthalene given naphthalenophane, 2,9,22,29-tetraoxo-4,7,24,27-tetrakis(carboxymethyl)-1,4,7,10,21,24,27,30-octaaza[10.10](1,5)naphthalenophane,...
Water-soluble cyclophanes functionalized by amide groups and pendant carboxymethyl have been synthesized, in a single step, condensation reaction between ethylenediaminetetraacetic (EDTA) dianhydride bis(4-aminophenyl) ether or bis(4-aminophenyl)methane: obtained are 2,9,25,32-tetraoxo-4,7,27,30-tetrakis(carboxymethyl)-1,4,7,10,24,27,30,33-octaaza-17,40-dioxa[10.1.10.1]paracyclophane (1)...
Enzymatic activity is dependent on temperature, although some proteins have evolved to retain at low temperatures the expense of stability. Cold adapted enzymes are present in a variety organisms and there ample interest their structure-function relationships. Lysozyme (E.C. 3.2.1.17) one most studied due its antibacterial against Gram positive bacteria also cold protein. In this work characterization lysozyme from insect Manduca sexta presented. Both M. lysozymes natural recombinant showed...
Two new glycine-Schiff base copper(II) complexes were synthesized. Single crystal X-ray diffraction (SCXRD) allowed us to establish the structure of both in solid state. The complex derived from 2'-hydroxy-5'-nitroacetophenone showed a mononuclear hydrated structure, which Schiff acted as tridentate ligand, and 2'-hydroxy-5'-methylacetophenone less common tetranuclear anhydrous metallocyclic tetradentate ligand. In compounds, had tetracoordinated square planar geometry. results vibrational,...
The cyclophanes 2,9,25,32-tetraoxo-4,7,27,30-tetrakis(carboxymethyl)-1,4,7,10, 24,27,30,33-octaaza-17,40-dioxa[10.1.10.1]paracyclophane (PO) and 2,9,25,32-tetraoxo-4,7,27,30-tetrakis(carboxymethyl)-1,4,7,10,24,27,30,33-octaaza[10.1.10.1]paracyclophane (PC) were coordinated with iron to form cationic binuclear Fe(III) Fe2PO Fe2PC complexes, respectively. Their antioxidant capacity, superoxide dismutase peroxidase mimetic activity, as well their toxicity toward peripheral blood mononuclear...
The humoral immune response plays an important role in the clearance of Giardia lamblia. However, our knowledge about specific antigens G. lamblia that induce a protective is limited. purpose this study was to identify and characterise immunogenic proteins mouse model. We generated monoclonal antibodies (moAbs) (1B10, 2C9.D11, 3C10.E5, 3D10, 5G8.B5, 5F4, 4C7, 3C5 3C6) by fusing splenocytes derived from infected mice. Most these moAbs recognised band ± 71 kDa (5G8 protein) protein also serum...
Abstract Cation–π interactions between molecules and graphene are known to have a profound effect on the properties of molecule/graphene nanohybrids motivate this study quantify attachment rhodamine 6G (R6G) dye photocarrier transfer channel formed across R6G/graphene interface. By increasing R6G areal density field‐effect transistor (GFET) from 0 up ≈3.6 × 10 13 cm −2 , linear shift Dirac point originally 1.2 V (p‐doped) −1 (n‐doped) is revealed with number molecules. This indicates that...
Le compose du titre cristallise dans le systeme orthorhombique avec groupe d'espace Pccn. Affinement de la structure jusqu'a 0,048. La molecule bithienyle est entierement plane
Binuclear Fe(III) complexes, Fe2PO and Fe2PC, have functions of antioxidants as well superoxide dismutase peroxidase mimickers. The role water molecules in the non-cytotoxic properties these complexes been studied by thermogravimetric IR/Raman-spectroscopic methods. analysis shows presence nine (Fe2PO·9H2O), three which are directly coordinated to metallic ion; remaining six occupy secondary coordination sphere. For eight were detected (Fe2PC·8H2O), only one them coordinates ion. IR/Raman...
With the objective of studying conformational and macrocyclic effects selected metal chelates on their peroxidase activities, Cu2+ Fe3+ complexes were synthesized with a derivative ethylenediaminetetraacetic acid o-phenylenediamine (abbreviated as edtaodH2) its new open-chain analogue (edtabzH2). The complex edtaodH2 has peroxidase-like activity, whereas edtabzH2 does not. X-ray study former shows formation dimeric molecule {[Fe(edtaod)]2O} in which each an octahedral coordination is...