Rosa A. Vázquez‐García

ORCID: 0000-0001-6522-9859
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Research Areas
  • Luminescence and Fluorescent Materials
  • Conducting polymers and applications
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Organic Electronics and Photovoltaics
  • Organic Light-Emitting Diodes Research
  • Molecular Sensors and Ion Detection
  • Perovskite Materials and Applications
  • Analytical Chemistry and Sensors
  • Nonlinear Optical Materials Research
  • Quantum Dots Synthesis And Properties
  • Dendrimers and Hyperbranched Polymers
  • Dyeing and Modifying Textile Fibers
  • Electrochemical sensors and biosensors
  • Crystallography and molecular interactions
  • Photochromic and Fluorescence Chemistry
  • Electrochemical Analysis and Applications
  • Chalcogenide Semiconductor Thin Films
  • Dye analysis and toxicity
  • Environmental Chemistry and Analysis
  • Carbon and Quantum Dots Applications
  • Photopolymerization techniques and applications
  • Molecular Junctions and Nanostructures
  • Business, Innovation, and Economy
  • Synthesis and Characterization of Heterocyclic Compounds

Universidad Autónoma del Estado de Hidalgo
2016-2025

Benemérita Universidad Autónoma de Puebla
2002

Recent advancements in perovskite-type hybrid solar cells (PSCs) have driven significant interest due to their promising photovoltaic properties and potential replace conventional silicon-based cells. In this work, we explore the use of N-[(3-dimethylamino) propyl] methacrylamide as an ionic additive MAPbI3 PSCs with structure fluorine-doped tin oxide/TiO2/perovskite/spiro-OMeTAD/Ag. This aims enhance device stability by reducing surface defects mitigating degradation under environmental...

10.1063/5.0255912 article EN cc-by Journal of Applied Physics 2025-04-22

The objective of this study was to evaluate how high-energy milling affects the structural, thermal, and morphological properties brewer’s spent grain fibers over time. researchers determined chemical composition samples using TAPPI techniques, particle size analysis, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD). displayed distinct morphologies sizes depending on treatment duration. sample...

10.3390/polym17091156 article EN Polymers 2025-04-24

Water-soluble Carbon Quantum Dots (CQDs) featured with blue fluorescence were prepared by electrochemical synthesis at room temperature using carbon electrodes as a source and encapsulated in liposomes of DMPC (1,2-dimyristoyl-sn‑glycero-3-phosphocholine) single quick step. The system liposome-CQDs was characterized UV–vis absorption spectroscopy, microscopy, scanning electron Fourier transform infrared spectroscopy epifluorescence microscopy. Electrochemical studies, such cyclic voltammetry...

10.1016/j.chphi.2024.100519 article EN cc-by Chemical Physics Impact 2024-02-04

Abstract The study of a macromolecule derived from DPP and triphenylamine, ( DPP-BisTPA ) by computational chemistry, its synthesis direct arylation, optical characterization (UV-Vis fluorescence) electrochemistry (cyclic voltammetry), as well evaluation generator reactive oxygen species indirectly, through the degradation uric acid. results obtained DFT using B3LYP/6-31G (d, p) TD-DFT CAM-B3LYP/6-31G reveal values energy levels first singlet triplet excited state that indicate possible...

10.1007/s10856-024-06776-0 article EN cc-by Journal of Materials Science Materials in Medicine 2024-02-01

This report illustrates a successful C–H···Hal synthon-directed strategy to promote supramolecular aggregation of molecular luminescent complexes 1–6 into two- or three-dimensional architectures. The tin were prepared from the reaction RnSnHal4–n compounds (R = n-Bu, Ph; Hal Cl, Br; n 0, 1) with (C5H4N)HC═N(C6H4)EH Schiff bases by either step-by-step synthesis [E O (PyNO)] multicomponent S (PyNS)]. Compounds characterized IR, Raman, and 1H, 13C, 119Sn NMR spectroscopic studies as well X-ray...

10.1021/cg401818k article EN Crystal Growth & Design 2014-06-30

In this work, two oligophenyleneimines type pentamers with terminal aldehydes, designated as DAFCHO (4,4'-((((((2,5-bis(octyloxy)-1,4-phenylene)bis(methanylylidene))bis(azanyl ylidene))bis(9H-fluorene-7,2-diyl))bis(azanylylidene))bis(methanylylidene))bis(2,5-bis(octyloxy) benzaldehyde)) and FDACHO (4,4'-((((((2,5-bis(octyloxy)-1,4-phenylene)bis(methanylylidene))bis (azanylylidene))bis(4,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(2,5-bis(octyloxy) were synthesized by...

10.3390/molecules24050849 article EN cc-by Molecules 2019-02-28

In this work, the synthesis of BODIPY-phenyl-triazole labelled coumarins (BPhTCs) using a two-step approach is described. The influence BODIPY appending on photophysical, electrochemical and thermal properties phenyl-triazole-coumarin precursors (PhTCs) was investigated. Band gap energies were measured by absorption spectroscopy (2.20 ± 0.02 eV in solid 2.35 0.01 solution) cyclic voltammetry (2.10 0.05 eV). results are supported DFT calculations confirming presence lowest LUMO levels that...

10.1016/j.heliyon.2023.e23517 article EN cc-by-nc-nd Heliyon 2023-12-10

In this study, we present an innovative research within the intersection of biotechnology, materials science, and electronics by presenting approach to enhance electrical characteristics silk fibers. By feeding silkworms with mulberry leaves infused reduced graphene oxide (rGO), achieved integration nanomaterial into biopolymer matrix Through comprehensive spectroscopic analyses, including Fourier transform infrared (FTIR) Raman spectroscopy, confirmed incorporation rGO fiber structure. Key...

10.1021/acsanm.3c06082 article EN ACS Applied Nano Materials 2024-03-05

En este trabajo se reporta la extracción de almidón a partir amaranto por un método convencional y su empleo como estabilizador nanoagregados derivados bisquinolinas (BQ1 BQ2). Las propiedades fisicoquímicas mostradas en el aislado fueron: capacidad retención agua 205.6% ± 6.1%, absorción aceite 208.4% 3.6%, claridad pasta 92.7% 0.99%. Se obtuvieron nano microagregados BQ1 BQ2 estabilizados con diámetros mínimos aproximados 296 68 nm respectivamente obtenidos DLS. El no afecta las...

10.29057/icbi.v12iespecial5.13690 article ES PÄDI Boletín Científico de Ciencias Básicas e Ingenierías del ICBI 2024-11-29

An acrylic and two novel allylic monomers synthesized from bis (hydroxyethyl) terephthalate, BHET, are reported. This was obtained by glycolysis of post-consumer PET with boiling ethylene glycol. The bifunctional monomer bis(2-(acryloyloxy)ethyl) terephthalate acryloyl chloride, while the 2-(((allyloxi)carbonyl)oxy) ethyl (2-hydroxyethyl) bis(2-(((allyloxi)carbonyl)oxy)ethyl) allyl chloroformate. Cross-linking studied in bulk polymerization using different thermal initiators. Monomers were...

10.1088/1757-899x/45/1/012007 article EN IOP Conference Series Materials Science and Engineering 2013-06-07

Novel fluorescent dendrimers of first, second, and third generation bearing a conjugated oligo(phenylenevinylene) (OPV) core peripherial allyl chains as dendrons have been synthesized by convergent method. The compounds fully characterized 1H, 13C NMR, FTIR, UV-vis, fluorescence spectroscopy, MALDI-TOF or FAB+ mass spectroscopy elemental analysis. All showed in solution blue with maximum wavelength at 444-446 nm can be deposited thin films emitting the blue-green region. most homogeneous...

10.1166/jnn.2007.616 article EN Journal of Nanoscience and Nanotechnology 2007-06-26

Dendron conjugated branches of stilbene and 4-styrylstilbene groups have been attached to resor-cinarene cores. A noticeable effect in solution for all dendrimers was observed the fluorescence quantum yield. The optical properties do not change with concentration solution. thin films are identical those solutions indicating absence intermolecular interactions. were characterized by 1H, 13C NMR, FTIR, UV-Vis, spectroscopy, MALDI-TOF or FAB+ mass spectrometry, elemental analysis.

10.1166/jnn.2007.917 article EN Journal of Nanoscience and Nanotechnology 2007-10-01
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