Browsing by Author "Vigh, Gyula"
Now showing items 1-20 of 60
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Balderas, Sara (Texas A&M University, 2005-11-01)Surfaces can be probed with a variant of secondary ion mass spectrometry (SIMS) where the bombardment is with a sequence of single keV projectiles, each resolved in time and space, coupled with the separate record of the ...
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Bowen, Sean Michael (2012-02-14)Nuclear magnetic resonance (NMR) yields remarkably detailed structural information about virtually any molecule. However, its application to non-equilibrium systems is hampered by a lack of sensitivity. To increase the ...
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Chen, Li-Jung (2012-07-16)Cluster ToF-SIMS (time-of-flight secondary ion mass spectrometry) operated in the event-by-event bombardment/detection mode has been applied to: 1) evaluate and screen the manufacturing quality of step-wise prepared ...
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Li, Zhen (2009-05-15)Cluster secondary ion mass spectrometry (SIMS) analyses of layer-by-layer thin films were performed to investigate the depth/volume of SI emission and accuracy of the SI signal. The thin-layered samples were assembled by ...
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Lucas, Jessica Elaine (Texas A&M University, 2004-09-30)Peptide mass fingerprinting (PMF) of protein digests is a widely-accepted method for protein identification in MS-based proteomic studies. Matrix-assisted laser desorption/ionization mass spectrometry (MALDI) is the ...
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Vigh, Gyula (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2002-05-21)A cyclodextrin composition of substantially pure, sulfated-cyclodextrin derivatives particularly suitable as chiral resolving agents for enantioseparation by electrophoresis. The cyclodextrin composition preferably have ...
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Shaikh, Faisal (Texas A&M University, 2008-10-10)Although advances in microfluidic technology have enabled increasingly sophisticated biosensing and bioassay operations to be performed at the microscale, many of these applications employ such small amounts of charged ...
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Lalwani, Sanjiv Kumar Shankerdass (Texas A&M University, 2006-04-12)Hydrolytically stable, low- and high-pI isoelectric hydrogel membranes were prepared from poly(vinyl alcohol) (PVA) as alternatives to polyacrylamide-based isoelectric membranes that hydrolyze in acidic and basic ...
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Stone, Earle Gregory (Texas A&M University, 2004-09-30)Peptide sequencing by surface-induced dissociation (SID) on a MALDI-Ion Mobility-orthogonal-TOF mass spectrometer is demonstrated. The early version of the instrument used for proof-of-concept experiments achieves a mobility ...
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Sherrod, Stacy D. (2010-01-14)Imaging mass spectrometry (MS) analysis allows scientists the ability to obtain spatial and chemical information of analytes on a wide variety of surfaces. The ability to image biological analytes is an important tool in ...
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Ruotolo, Brandon Thomas (Texas A&M University, 2005-08-29)Separations coupled to mass spectrometry (MS) are widely used for large-scale protein identification in order to reduce the adverse effects of analyte ion suppression, increase the dynamic range, and as a deconvolution ...
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Morgan, Joseph William (Texas A&M University, 2006-04-12)The design and incorporation of a decelerating/accelerating cell into a reflectron time-of-flight mass spectrometer is described for the examination of promptly-formed photodissociation products of peptide ions. The ...
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Hossain, Mohammad (2010-12-04)In this study, ultrathin (submonolayer to eight-monolayer) Pd films were deposited one layer at a time on well-defined Pt(111) surfaces via a process known as surface-limited redox replacement reaction (SLR^3). In this ...
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Lo, Chih-Cheng (2009-05-15)DNA gel electrophoresis is a critical analytical step in a wide spectrum of genomic analysis assays. Great efforts have been directed to the development of miniaturized microfluidic systems (“lab-on-a-chip” systems) to ...
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Sanabria-Chinchilla, Jean (2009-06-02)The chemisorption and electrochemical hydrogenation of hydroquinone (H2Q) at polycrystalline (pc) Pd, well-ordered Pd(100), and Pd-modified Au(hkl) electrodes were studied using a combination of ultra-high vacuum (UHV) ...
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Baricuatro, Jack Hess L (Texas A&M University, 2006-10-30)Three illustrative cases involving the electrodeposition of ultrathin metal films of varying reactivities onto noble-metal substrates were investigated: (i) Pd on Pt(111), a noble admetal on a noble-metal surface; (ii) Bi ...
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Vigh, Gyula; Ogle, David; Rylatt, Dennis Brian (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2005-08-02)An electrophoretic apparatus comprising: a first electrolyte chamber containing a first electrode; a second electrolyte chamber containing a second electrode; a first sample chamber disposed between the first and second ...
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DeBord, John 1986- (2012-08-16)Impacts of high kinetic energy massive gold clusters (~ 500 keV Au400+4) exhibit significantly enhanced secondary ion yields relative to traditional atomic or polyatomic primary ions (e.g. Au3 and C60). The one-of-a-kind ...
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Estrada, Roy Tonacao, III (2012-02-14)Fluorescent labeling can improve the detection sensitivity in capillary electrophoretic (CE) separations down to attomolar concentrations. However, most fluorescent labels are not compatible with CE because their fluorescence ...
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Vigh, Gyula; Li, Ming-chien (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2017-06-27)UV-Absorbing and fluorescent pl markers for isoelectric focusing separations and fluorescent labeling, and methods for making and using the markers.