A5082490367- Metal complexes synthesis and properties
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced oxidation water treatment
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Molecular Sensors and Ion Detection
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Photocatalysis Techniques
- Nanomaterials for catalytic reactions
- Electrochemical Analysis and Applications
- Nanocluster Synthesis and Applications
- Crystal structures of chemical compounds
- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Free Radicals and Antioxidants
- Crystallography and molecular interactions
- Enzyme Catalysis and Immobilization
- TiO2 Photocatalysis and Solar Cells
- Organometallic Compounds Synthesis and Characterization
- Advanced Proteomics Techniques and Applications
- Ferrocene Chemistry and Applications
- Sunflower and Safflower Cultivation
- Transgenic Plants and Applications
- Electrochemical sensors and biosensors
Polytechnic University of the Valley of Mexico
2016-2025
Polytechnic University of Puerto Rico
2010-2023
Annamalai University
2013
Anna University, Chennai
2010
Universidad Nacional Autónoma de México
2001-2008
The development of greener nano-constructs with noteworthy biological activity is supreme interest, as a robust choice to minimize the extensive use synthetic drugs. Essential oils (EOs) and their constituents offer medicinal potentialities because activity, including inhibition fungi species. However, application natural antifungal agents are limited due volatility, low stability, restricted administration routes. Nanotechnology receiving particular attention overcome drawbacks EOs such...
Herein, we report the synthesis and characterization of metal complexes Fe( iii ), Co( ii Cu( ) with SALPHEN ( N , -bis(salicylimine)- o -phenyldiammine) their potential application as sensitizers in dye-sensitized solar cells (DSSCs).
Capping agents stabilise the size of nanoparticles in range 1-10 nm. Microbial surfactants as capping are beneficial replacements for chemically synthesised ones because lower toxicity. Rhamnolipids produced by Pseudomonas aeruginosa, having high affinity metal ions. In this study, authors used rhamnolipids ZnS nanoparticles. The capped particles were stabilised aqueous environment and its characteristics studied using Fourier transform infrared spectroscopy (FT-IR), small angle X-ray...
The oxidation of para ‐substituted anilines (X–C 6 H 4 NH 2 , X = –CH 3 –H, –Cl, –NO ) with chlorine dioxide was studied as a means eliminating these pollutants. rate decreases from that for 4‐methylaniline to 4‐nitroanilinem in agreement the Hammett plot; kinetics is second order aniline and first ClO which possible mechanism proposed. Liquid chromatography gas mass spectrometry results show benzoquinone formed major intermediate aniline/ClO oxidation, reaction pH‐dependent constant...
Dopamine (DA) and uric acid (UA), which are vital components in human metabolism, cause several health problems if they present altered concentrations; thus, the determination of DA UA is essential real samples using selective sensors. In study, graphite carbon paste electrodes (CPE) were fabricated ZnO/carbon quantum dots (ZnO/CQDs) employed as electrochemical sensors for detection UA. These fully characterized via different analytical techniques (XRD, SEM, TEM, XPS, EDS). The responses...
Three ruthenium(II) and (III) metal complexes of the compositions ([Ru(1)(Cl)(PPh3)]+ (4), ([Ru(2)(Cl)(PPh3)]+ (5) ([Ru(3)(Cl)(H2O)]2+ (6) have been synthesized from oligodentate pyridyl-(1) benzimidazole ligands (2–3) structurally characterized. Our investigations revealed that if coordination sphere ion carries a strong coordinating PPh3 ligand (complexes 4 5), framework was not suitable for anion binding at all. However, when solvent (H2O) to centre occurred instead (complex 6), receptor...
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,...
Gold complexes of 1,3‐ bis‐pyridylimidazolium chloride ( L1 ), 1,3‐bis‐[2,6‐diisopropylphenyl]imidazolium L2 ) and 1,3‐bis‐[benzyl]benzimidazolium L3 were synthesized characterized by analytical methods. For the complexes, electronic spectral results show that there is a marked difference in band feature observed spectra, ascribed to greater relativistic effect gold. In fluorescence studies, develop emission bands visible region (400–600 nm) after excitation at around 350 nm. Au complex–DNA...
Green chemistry and a central composite design, to evaluate the effect of reducing agent, temperature pH reaction, were employed produce controlled cuprous oxide (Cu2O) nanoparticles. Response surface method ultraviolet-visible spectroscopy is allowed determine most relevant factors for size distribution nanoCu2O. X-ray diffraction reflections correspond cubic structure, with sizes from 31.9 104.3 nm. High-resolution transmission electron microscopy reveals that different shapes depend...
The oxidation of phenols with chlorine dioxide, a powerful means to eliminate phenol pollutants from drinking water, is explored. Kinetic experiments reveal that 2,4,6-trichlorophenol exhibits lower rate than other because the atoms (σ = 0.22) at ortho and para-positions decrease benzene’s electron density, in agreement Hammett plot. was found be second order respect first ClO2 possible mechanism proposed. phenol/ClO2 pH-dependent since reaction constant increases increasing pH. also...
Since the interfacial binding strength and structural integrity have a strong influence on active sites of nanocomposites, this study focused exploring electronic properties at interface between implanted metal ion host support. For this, nanocomposites gold embedded in CeO2-ZrO2 CeO2-Al2O3 matrices were fabricated, their morphological investigated using ICP-OES, UV-vis, XRD, Raman, HRTEM, high-resolution XPS studies compared. From results, it was found that deposition is highly favored over...