A5036710074- Trace Elements in Health
- Selenium in Biological Systems
- Mercury impact and mitigation studies
- Advanced Surface Polishing Techniques
- Analytical chemistry methods development
- Diamond and Carbon-based Materials Research
- Monoclonal and Polyclonal Antibodies Research
- Nanoparticles: synthesis and applications
- Molecular Junctions and Nanostructures
- Fungal Infections and Studies
- Nanofabrication and Lithography Techniques
- Force Microscopy Techniques and Applications
- Ion-surface interactions and analysis
- Porphyrin and Phthalocyanine Chemistry
- Heavy Metals in Plants
- Iron Metabolism and Disorders
- Membrane Separation Technologies
- Heavy Metal Exposure and Toxicity
- Biosensors and Analytical Detection
- Mass Spectrometry Techniques and Applications
- Adsorption, diffusion, and thermodynamic properties of materials
- Blood disorders and treatments
- Plant-Microbe Interactions and Immunity
- Synthesis and Properties of Aromatic Compounds
- Advanced Materials Characterization Techniques
3M (United States)
2012-2021
University of Cincinnati
2008-2012
Agilent Technologies (United States)
2009
Universidad de Guanajuato
2009
University of Cincinnati Medical Center
2009
Nankai University
2005-2007
Water based electrolyzers offer a promising approach for generating hydrogen gas renewable energy storage. 3M's nanostructured thin film (NSTF) catalyst technology platform has been shown to significantly reduce many of the performance, cost and durability barriers standing in way H2/air PEM fuel cells vehicles. In this paper we describe results from first evaluations low loaded NSTF catalysts H2/O2 at Proton OnSite Giner, Inc. Over two dozen membrane electrode assemblies comprising nine...
Se-enriched rice was prepared by foliar fertilization. In the present work, speciation and distribution of Se in non-supplemented evaluated ion-paring reversed phase (IP-RP) strong anion-exchange (SAX) chromatography coupled with inductively plasma mass spectrometry (ICPMS) detection. Three extraction procedures: water extraction, acid (0.1 M HCl) enzymatic hydrolysis were studied a combination protease XIV amylase ultrasonic bath latter found to be optimal for selenospecies. The...
The fungal pathogen Histoplasma capsulatum evades the innate and adaptive immune responses thrives within resting macrophages. Cytokines that induce antimicrobial activity, such as granulocyte macrophage colony-stimulating factor (GM-CSF), inhibit H. growth in Conversely, interleukin 4 inhibits killing of intracellular pathogens. Using inductively coupled plasma mass spectrometry, we examined alterations metal homeostasis murine capsulatum-infected macrophages were exposed to activating...
Soybean (Glycine Max) plants were grown in soil supplemented with sodium selenite. A comprehensive selenium profile, including total concentration, distribution of high molecular weight and characterization low compounds, is reported for each plant compartment: bean, pod, leaf root the Se-enriched soybean plants. Two chromatographic techniques, coupled inductively plasma mass spectrometry (ICPMS) specific detection, employed this work to analyze extract solutions from compartments....
This paper describes a comprehensive investigation of particle number concentrations including multi-method comparison, theoretical modeling, and cellular dosimetry.
Kale (Brassica oleracea A.) can accumulate high concentrations of Se, as well lutein and β-carotene, which have important human health benefits possess strong antioxidant properties. In the present study, kale plants were cultivated in soil supplemented with sodium selenite or selenate. The accumulated over 20 times higher concentration selenium selenate-enriched compared selenite-enriched soil. Selenium accumulation did not suppress plant's uptake essential metals, Fe, Cu Zn. Speciation...
Touching a chord: A field-dependent conformational change occurs in dimesogen molecules with flexible linking chains, which illustrates molecular chord structure that is switchable by an electric field (see picture; HOPG= highly oriented pyrolytic graphite). No discernible changes are observed for rigid linkers. Supporting information this article available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z600925_s.pdf or from author. Please note: The publisher not responsible...
A fundamental pathogenic feature of the fungus Histoplasma capsulatum is its ability to evade innate and adaptive immune defenses. Once ingested by macrophages organism faced with several hostile environmental conditions including iron limitation. H. can establish a persistent state within macrophage. gap in knowledge exists because identities number proteins regulated under host has yet be defined. Lack such an important problem until these are identified it unlikely that they targeted as...
Covalent modifications of nucleobases are thought to play an important role in regulating the functions DNA and various cellular RNA types. Perhaps best characterized is methylation on cytosine (methyl tag attached carbon 5 position) such modification has also been detected stable long-lived molecules. In this work, we propose a novel procedure enabling very sensitive quantification methylcytidine other ribonucleosides, based reversed phase liquid chromatography with inductively coupled...
Microcontact printing (µCP) is an easy and efficient way of producing patterns self-assembled monolayers (SAM) containing different functional groups. We have developed a simple convenient µCP-based technique for the modification mica substrate with 3-aminopropyltriethoxysilane (APTES) micropatterning proteins (chicken IgG rabbit IgG) on modified surface. Our approach provides quick to produce protein solid surfaces. The printed immunoglobulin were detected by exposing solutions...
This work describes the use of Single Particle Inductively Coupled Plasma Mass Spectrometry (spICP-MS) to measure ceria particle number concentrations and compare changes in size distributions silicon dioxide wafer removal rates from different chemical mechanical planarization (CMP) processes. were measured for 21 559 nm range at 1 resolution. Changes distribution after CMP included a decrease large (>130 nm) particles, an increase small (<40 total median size. The was as high 7%...
Microcontact printing (μCP) is a newly developed bioresearch technique applied in many fields such as absorption of proteins, adjunction and growth cells so forth, because the controllable structure its patterned materials. Further experiments showed that microcontact printed proteins can keep their bioactivity, which provides feasibility bio-molecule or cell analysis. The self-assembled molecules μCP make molecule-scaled reactions possible, have much higher accuracy compared with large...
This work describes advanced metrology based on Single Particle Inductively Coupled Plasma Mass Spectrometry (spICP-MS) for evaluating ultra-pure chemicals used in electronics applications such as Chemical Mechanical Planarization (CMP), cleaning fluids, photoresist, anti-reflecting coatings etc. spICP-MS was to measure concentrations and sizes of nanoparticles both upstream downstream sub 100 nm rated membranes. One membrane showed over 1000-fold reduction gold particles sized between 14 80...
This work describes advanced metrology based on Single Particle Inductively Coupled Plasma Mass Spectrometry (sp-ICP-MS) used in chemical mechanical planarization (CMP) process development. sp-ICP-MS was to measure concentrations and sizes of ceria nanoparticles before after CMP silicon dioxide. Changes the particle size distribution show a shift lower median polishing, an increase number smaller particles. result is consistent with previous reports which showed significant in- reduction...