A5017687029- Luminescence and Fluorescent Materials
- Nanoplatforms for cancer theranostics
- Molecular Sensors and Ion Detection
- Porphyrin and Phthalocyanine Chemistry
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Adsorption and biosorption for pollutant removal
- Silicon Nanostructures and Photoluminescence
- Organic Light-Emitting Diodes Research
- Pharmaceutical and Antibiotic Environmental Impacts
- Advanced biosensing and bioanalysis techniques
- Click Chemistry and Applications
- Molecular Junctions and Nanostructures
- Advanced Photocatalysis Techniques
- Aerogels and thermal insulation
- Polymer Surface Interaction Studies
- Chemical Synthesis and Analysis
- Synthesis and biological activity
- Advanced Sensor and Energy Harvesting Materials
- Carbohydrate Chemistry and Synthesis
- Dielectric materials and actuators
- Glycosylation and Glycoproteins Research
- Nanoparticle-Based Drug Delivery
- Mercury impact and mitigation studies
- Graphene and Nanomaterials Applications
Autonomous University of San Luis Potosí
2019-2024
Polytechnic University of San Luis Potosí
2020
University of Notre Dame
2017-2018
Universidad de Guanajuato
2010-2016
University of Hong Kong
2015
Hong Kong University of Science and Technology
2015
Institute of Molecular Functional Materials
2015
A series of tetraphenylethene-containing BODIPYs with emissions from visible to near-IR and large Stokes shifts up 142 nm have been designed synthesized. They show solvatochromic fluorescence can be utilized as fluorescent visualizers for intracellular imaging.
Abstract The development of highly efficient and stable blue‐emitting dyes to overcome some the most important shortcomings available chromophores is great technological importance for modern optical, analytical, electronic, biological applications. Here, we report design, synthesis characterization new tailor‐made BODIPY with absorption emission in blue spectral region. major challenge effective management electron‐donor strength substitution pattern, order modulate these novel over a wide...
Highly emitting 8-propargylaminoBODIPY (8-PAB) 2 was prepared in 94% yield. Unlike any other BODIPY structure hitherto described the literature, displays efficient emission blue region of visible spectrum with a fluorescence quantum yield up to 0.94 and high laser efficiency (35%) at 483 nm.
A series of BODIPY derivatives with tetraphenylethene (TPE) moieties were designed and synthesized. The effect positions numbers substitution groups on the fluorescence BODIPYs was investigated. Theoretical calculation single crystal structures proved that TPE 8-position contributed little to conjugation, but benefited aggregated state emission. On other hand, substitutions 3- or 5-position through vinyl bridges increased conjugation length, generated big coplanar π-conjugated poor compound...
Halogenated BODIPY with different substitutions patterns at their <italic>meso</italic> position are deeply analyzed. One of them is proposed as a suitable reference high singlet oxygen quantum yield, practically solvent-independent in broad polarity range.
The role of the amino group twisting ability in BODIPY photophysics for nonsterically hindered and constrained molecular structures was studied. When a coplanar disposition core is feasible, hemicyanine-like delocalized π-system gives rise to novel blue efficient laser dyes. key such rotamer confirmed by newly synthesized derivatives where are electronically decoupled steric repulsions.
Abstract A series of meso ‐substituted boron‐bipyrromethene (BODIPY) dyes are synthesized and their laser photophysical properties systematically studied. Laser emission covering a wide visible spectral region (from blue to orange) is obtained by just changing the electron donor character heteroatom at position 8. The additional presence methyl groups positions 3 5 results in with photostability similar that unsubstituted dye but much improved efficiency. Correlation lasing different...
We demonstrate herein that both alcohols and phenols can be tagged with a BODIPY (borondipyrromethene) moiety to yield highly fluorescent products. Thus, 8-(methylthio)-BODIPY (1) undergoes an S(N)Ar-type reaction host of in the presence base Cu(I) additive. The dyes bearing alkoxy or nonfunctionalized phenoxy moieties are characterized by efficient fluorescence emission, regardless media, blue-green part visible region. Complementary this, electron-donor groups at aryl ring leads...
Abstract Herein, we report the synthesis of polyfunctional BODIPY building blocks suitable to be subjected several reaction sequences with complete chemoselectivity, thereby allowing preparation complex derivatives in a versatile and programmable manner. The reactions included Liebeskind–Srogl cross‐coupling (LSCC), nucleophilic aromatic substitution ( S N Ar), Suzuki, Sonogashira, Stille couplings, desulfitative reduction MeS group. This novel synthetic protocol is powerful route design...
Abstract A thorough study of the photophysical and laser properties 8‐aminoboron dipyrromethene dyes was undertaken to determine role amine substitution spatial disposition on dyes. It found that fluorescent response varied significantly. Although primary amines give rise highly products at blue edge visible region, secondary yield nonfluorescent analogues in polar media. The crystal structures two are reported described. Steric hindrance higher electron‐releasing ability favor formation a...
A conceptually new type of enzymatic cleavage assay is reported that utilizes in situ supramolecular capture the fluorescent product. squaraine-derived substrate with large blocking groups at each end its structure cannot be threaded by a tetralactam macrocycle until are removed enzyme cleavage. prototype design responds to viral neuraminidase, an indicator influenza infection, and also measures susceptibility sample neuraminidase inhibitor drugs. The incorporates three key features: (a)...
Several new examples of meso-(het)arylBODIPY were prepared via the Liebeskind-Srogl (L-S) cross-coupling reaction Biellmann BODIPYs (1a,b) and aryl- heteroarylboronic acids in good to excellent yield. It was shown that this could be carried out under microwave heating shorten times and/or increase illustrated organostannanes also participate L-S give corresponding BODIPY analogues short with yields. We analyze role substituent at sensitive meso position photophysical signatures these...
Sulfamethoxazole [SMX] and metronidazole [MNZ] are emergent pollutants commonly found in surface water wastewater, which can cause public health environmental issues even at trace levels. An efficient alternative for their removal is the application of adsorption technology. The present work evaluated single binary processes using granular activated carbon (CAG F400) SMX MNZ an aqueous solution. process was studied a Box–Behnken experimental design (RSD), results were statistically tested...
New fluorescent molecular probes, which can selectively target specific cell surface receptors, are needed for microscopy, in vivo imaging, and image guided surgery. The preparation of multivalent probes using standard synthetic chemistry be a laborious process due to low reaction yields caused by steric effects. In this study, were prepared programmed non-covalent pre-assembly that used near-infrared squaraine dye thread macrocycle bearing cyclic arginine-glycine-aspartate peptide...
Triazoles occupy an important position in medicinal chemistry because of their various biological activities. The structural features 1,2,3-triazoles enable them to act as a bioisostere different functional groups such amide, ester, carboxylic acid, and heterocycle, being capable forming hydrogen bonds π-π interactions or coordinate metal ions with targets. In this work, the synthesis 1,2,3-triazole derivatives via copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) is reported....
ABSTRACT The swelling behavior of poly(acrylic acid‐co‐itaconic acid)/NaOH hydrogel as well its ability for iron and copper rust removal was studied established the first time. Through an experimental design, influence synthesis parameters on response determined. It found that pH‐responsiveness dependence determines application. In alkaline media, acted superabsorbent, while in acidic, most outstanding property pickling capability allowed to clean carbon steel metallic surfaces. Infrared,...
While the general concept of steric speed bumps has been demonstrated in rotaxane shuttles and macrocycle threading systems, sensitivity bump effects not evaluated as a function structural geometry. Values Ka kon for water are reported series homologous squaraine dyes with different substituents (speed bumps) on flanking chains two macrocycles cavity sizes. Sensitivity to effect was found depend (a) location, being lowest when near end chain, (b) size, which enhanced constricted. This new...
In recent years, the invasive pleco fish has emerged as a global concern due to its adverse effects on ecosystems and economic activities, particularly in various water bodies Mexico. This study introduces an innovative solution, employing microwave-assisted hydrothermal carbonization (MHTC) synthesize hydrochar from biomass. The research aimed optimize synthesis conditions enhance yield, calorific value, adsorption capacities for fluoride cadmium water. MHTC, characterized by low energy...