A5055061760- Arsenic contamination and mitigation
- Environmental remediation with nanomaterials
- Iron oxide chemistry and applications
- Nanoparticles: synthesis and applications
- Air Quality and Health Impacts
- Fullerene Chemistry and Applications
- Air Quality Monitoring and Forecasting
- Heavy Metal Exposure and Toxicity
- 3D Printing in Biomedical Research
- Mercury impact and mitigation studies
- Photoacoustic and Ultrasonic Imaging
- Electrochemical sensors and biosensors
- Chemistry and Chemical Engineering
- Inhalation and Respiratory Drug Delivery
- thermodynamics and calorimetric analyses
- Perovskite Materials and Applications
- Nanotechnology research and applications
- Nanoplatforms for cancer theranostics
- Electrochemical Analysis and Applications
- Graphene and Nanomaterials Applications
- Conducting polymers and applications
- TiO2 Photocatalysis and Solar Cells
- Nanowire Synthesis and Applications
- Various Chemistry Research Topics
- Ultrasound and Hyperthermia Applications
Hope College
2021-2025
University of California, San Diego
2017-2019
Rice University
2014
Tecnológico de Monterrey
2010
Institut Català de Nanociència i Nanotecnologia
2010
Stem cell therapy in heart disease is challenged by mis-injection, poor survival, and low retention. Here, we describe a biocompatible multifunctional silica-iron oxide nanoparticle to help solve these issues. The nanoparticles were made via an situ growth of Fe3O4 on both the external surfaces pore walls mesocellular foam silica nanoparticles. In contrast previous work, this approach builds magnetic moiety inside pores porous structure. These materials serve three roles: drug delivery,...
Physicochemical properties of manganese nanoparticles are key to adverse health effects.
The presence of arsenic in groundwater and other drinking water sources presents a notable public health concern. Although the utilization iron oxide nanomaterials as adsorbents has shown promising results batch experiments, few have succeeded using filter setups. In this study, performance nanomaterials, supported on sand, was first compared for adsorption by conducting continuous flow experiments. Iron nanoparticles (IONPs) were prepared with different synthetic methodologies to control...
Herein, we report the synthesis of a new series rigid, all meta‐phenylene, conjugated deep‐cavity molecules, displaying high binding affinity towards buckyballs. A facile synthetic approach with an overall combined yield approximately 53% in last two steps has been developed using templating strategy that combines general structure resorcin[4]arene and [12]cyclo‐meta‐phenylene. These moieties are covalently linked via four acetal bonds resulting glove‐like architecture. 1H NMR titration...
Herein, we report the synthesis of a new series rigid, all meta-phenylene, conjugated deep-cavity molecules, displaying high binding affinity towards buckyballs. A facile synthetic approach with an overall combined yield approximately 53% in last two steps has been developed using templating strategy that combines general structure resorcin[4]arene and [12]cyclo-meta-phenylene. These moieties are covalently linked via four acetal bonds resulting glove-like architecture. 1H NMR titration...
Increasingly, cities in Latin America are recognizing the importance of drinking water quality on public health. A assessment Guanajuato, Mexico, and surrounding areas indicated naturally occurring arsenic some wells above Mexican standard 25 μg/L World Health Organization recommendation 10 μg/L. This initiated a collaborative effort with city to evaluate new removal method using high surface area magnetite sorbents. Nanoscale (20 nm) particles, previously shown effectively adsorb batch...
Coatings on nanoparticle (NP) surfaces play a key role in dictating their behavior the environment.
Abstract Transvaginal ultrasound is widely used for ovarian cancer screening but has a high false‐positive rate. Photoacoustic imaging provides additional optical contrast to supplement and might be able improve the accuracy of screening. Two copper sulfide (CuS) nanoparticle types (nanodisks triangular nanoprisms) are reported as photoacoustic agents cancer. Both CuS nanoprisms nanodisks ≈6 nm thick ≈26 wide coated with poly(ethylene glycol) make them colloidally stable in...
Iron oxide nanocrystals are of great scientific and technological interest. In this work, these materials the starting point for producing a reactive nanoparticle whose surface resembles that natural green rusts. Treatment iron nanoparticles with cysteamine leads to reduction formation brilliant aqueous solution rich in iron(II). These remained crystalline magnetic structural features original oxide. However, new low-angle X-ray diffraction peaks as well vibrational characteristic were found...
There is great concern regarding the adverse health implications of engineered nanoparticles. However, there are many circumstances where production incidental nanoparticles, i.e., nanoparticles unintentionally generated as a side product some anthropogenic process, even greater concern. In this study, metal-based were measured in two occupational settings: machining center and foundry. On-site characterization substrate-deposited using field-portable X-ray fluorescence provided insights...
There is an increasing need to evaluate concentrations of nanoparticles in occupational settings due their potential negative health effects. The Nanoparticle Respiratory Deposition (NRD) personal sampler was developed collect separately from larger particles the breathing zone workers, while simultaneously providing a measure respirable mass concentration. This study compared measured with NRD those nano Micro Orifice Uniform-Deposit Impactor (nanoMOUDI) and samplers three workplaces....
Abstract BACKGROUND Arsenic is one of the most serious drinking water contaminants around world. The development iron oxide materials, including nanoparticles, as sorbents for arsenic remediation has shown promising results in recent years. Some these materials are already used commercial‐grade sorbents. However, use iron‐oxide nanoparticles (IONPs) barely been real‐world conditions. This work compares commercial IONPs with three proven RESULTS full chemical characterization includes...
Herein, we report the synthesis of a new series rigid, all meta-phenylene, conjugated deep-cavity molecules, displaying high binding affinity towards buckyballs. A facile two-step synthetic approach with an overall yield approximately 54% has been developed using templating strategy that combines general structure resorcin[4]arene and [12]cyclo-meta-phenylene. These two moieties are covalently linked via four acetal bonds resulting in glove-like architecture. 1H NMR titration experiments...