Cerritos College - Chemistry
PhD
Inorganic Chemistry - Nanoparticle Synthesis
University of Southern California
Bachelor of Science (BS)
Chemistry
California State University-Los Angeles
BA
Studio Art - Painting/Photography/Installation
University of California
Irvine
Nanoparticle Synthesis
Undergraduate Teaching
GC
Powder X-ray Diffraction
TEM
Nanomaterials
Schlenk line
Nanoparticles
TGA
XRD
Photoshop
EDX
Ionic Liquids
Microsoft Office
SEM
XPS
Chemistry
SAED
FTIR
UV/Vis
Heterogeneous fullerene-supported osmium tetroxide catalyst for the cis-dihydroxylation of olefins
We report on the activity of fullerene-supported OsO4 catalysts in the achiral dihydroxylation of olefins using N-methylmorpholine N-oxide as co-oxidant. The fullerene-supported OsO4 catalysts can selectively dihydroxylate olefins with conversions up to 95% after 48 h without leaching
and the catalysts can be recovered and recycled several times.
Heterogeneous fullerene-supported osmium tetroxide catalyst for the cis-dihydroxylation of olefins
Malancha Gupta
Brandon C. Marin
Droplet-based microfluidic platforms have the potential to provide superior control over mixing as compared to traditional batch reactions. Ionic liquids have advantageous properties for metal nanoparticle synthesis as a result of their low interfacial tension and complexing ability; however
droplet formation of ionic liquids within microfluidic channels in a two-phase system has not yet been attained because of their complex interfacial properties and high viscosities. Here
breakup of an imidazolium-based ionic liquid into droplets in a simple two-phase system has for the first time been achieved and characterized by using a microchannel modified with a thin film fluoropolymer. This microfluidic/ionic liquid droplet system was used to produce small
spherical gold (4.28 ± 0.84 nm) and silver (3.73 ± 0.77 nm) nanoparticles.
Two-Phase Microfluidic Droplet Flows of Ionic Liquids for the Synthesis of Gold and Silver Nanoparticles
Steven Chu
A microfluidic device was used in tandem with an imidazolium-based ionic liquid to fabricate monodisperse gold nanoparticles (4.38 ± 0.53 nm) with excellent control over size and morphology.
Flow-focused synthesis of monodisperse gold nanoparticles using ionic liquids on a microfluidic platform
Effect of Ionic Liquid Impurities on the Synthesis of Silver Nanoparticles
Imidazolium-based ionic liquids have been widely utilized as versatile solvents for metal nanoparticle synthesis; however
reactions to synthesize silver nanoparticles that are performed identically in different commercially obtained lots of 1-butyl-3-methylimidazolium tetrafluoroborate (BMIM-BF4) give divergent results. This suggests that impurities in these nominally identical solvents play an important role in the resulting silver nanoparticle quality. To test the effect that impurities have on the quality of silver nanoparticles synthesized in BMIM-BF4
silver nanoparticles were synthesized in carefully prepared and purified BMIM-BF4 and compared against silver nanoparticles that were synthesized in the purified BMIM-BF4 that had been spiked with trace amounts of water
chloride
and 1-methylimidazole. It was clearly demonstrated that trace amounts of these common ionic liquid impurities cause significant deviation in size and shape (creating polydisperse and irregularly shaped ensembles of both large and small particles)
and also negatively impact the stabilization of the resulting silver nanoparticles.
Effect of Ionic Liquid Impurities on the Synthesis of Silver Nanoparticles
Fullerton College
Cypress College
Santa Monica College
University of Southern California
Long Beach City College
Cerritos College
Los Angeles
-Physical Chemistry Discussion \n-Advanced General Chemistry Lab
Teaching Assistant
University of Southern California
Fullerton
California
Assistant Professor of Chemistry
Fullerton College
Santa Monica
CA
PT Chemistry Instructor
Santa Monica College
Norwalk
CA
PT Chemistry Instructor
Cerritos College
University of Southern California
Long Beach City College
Long Beach
PT Chemistry Instructor
Cypress
CA
PT Chemistry Instructor
Cypress College
University of Southern California
Doctoral Fellowship in Chemistry
University of Southern California
The Jean Dreyfus Boissevain Undergraduate Scholarship for Excellence in Chemistry Award
The Camille & Henry Dreyfus Foundation
Inc./ California State University
Los Angeles
The Beckman Scholars Award
Arnold and Mabel Beckman Foundation / California State University
Los Angeles
NSF-REU Award
National Science Foundation / University of Hawai'i at Manoa
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