Search Results - "Tong, William G."
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Ultrasensitive Detection and Separation of Pancreatic Cancer Biomarker CA 19‑9 Using a Multiphoton Laser Wave-Mixing Detector Interfaced to Capillary Electrophoresis
Published in ACS omega (29-08-2023)“…The carbohydrate antigen 19–9 (CA 19-9) is the most commonly used biomarker in the clinical diagnosis of pancreatic cancer. Multiphoton nonlinear laser…”
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Sensitive detection of heart-failure biomarkers natriuretic peptides using multi-photon laser wave-mixing spectroscopy
Published in Talanta (Oxford) (01-02-2023)“…Nonlinear laser wave-mixing spectroscopy is demonstrated as a fast and sensitive detection method for heart-failure biomarkers, pro-atrial natriuretic peptide…”
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Sensitive detection of malachite green and crystal violet by nonlinear laser wave mixing and capillary electrophoresis
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (01-05-2016)“…•Sub-nanomolar label-free detection of malachite green and crystal violet.•Zepto-mole mass detection limit.•Rapid separation and identification of analytes…”
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The importance of porphyrins in blue light suppression of Streptococcus agalactiae
Published in Journal of photochemistry and photobiology. B, Biology (01-11-2020)“…It is well documented that blue light absorption by bacterial chromophores triggers downstream production of reactive oxygen species (ROS), which in turn…”
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Sensitive analysis of α-synuclein by nonlinear laser wave mixing coupled with capillary electrophoresis
Published in Analytical biochemistry (01-05-2016)“…Multi-photon nonlinear laser wave-mixing spectroscopy is a novel absorption-based technique that offers excellent detection sensitivity for biomedical…”
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Sensitive absorption-based wave-mixing detector for anthracycline drugs separated by capillary electrophoresis
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (01-10-2010)“…Sensitive absorption-based detection of anthracycline antibiotics, daunorubicin and doxorubicin is demonstrated using a capillary electrophoresis system…”
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Ultrasensitive detection of proteins and antibodies by absorption-based laser wave-mixing detection using a chromophore label
Published in Analytical biochemistry (15-04-2010)“…Nonlinear laser wave mixing is presented as an ultrasensitive absorption-based method for the detection of proteins and antibodies using a nonfluorescing…”
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Wave-Mixing Circular Dichroism Detector for Chiral Liquid Chromatography
Published in Applied spectroscopy (01-01-2010)“…A circular dichroism (CD) detector based on laser four-wave mixing (FWM) is demonstrated using separate injections of analyte enantiomers onto a standard…”
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Trace Analysis of Rubidium Hyperfine Structure in a Flame Atomizer Using Sub-Doppler Laser Wave-Mixing Spectroscopy
Published in Applied spectroscopy (01-12-2003)“…Nonlinear laser wave mixing is a versatile spectroscopic method for trace elemental analysis at high spectral resolution. Sub-Doppler spectral resolution…”
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Sub-Parts-Per-Quadrillion-Level Graphite Furnace Atomic Absorption Spectrophotometry Based on Laser Wave Mixing
Published in Analytical chemistry (Washington) (15-03-2004)“…Nonlinear laser wave mixing in a common graphite furnace atomizer is presented as a zeptomole-level, sub-Doppler, high-resolution atomic absorption…”
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Multiphoton laser wave-mixing absorption spectroscopy for samarium using a graphite furnace atomizer
Published in Spectrochimica acta. Part B: Atomic spectroscopy (30-07-2004)“…Nonlinear laser wave-mixing optical technique is presented as a sensitive atomic spectroscopic method for the analysis of rare earth elements using an…”
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12
Laser spectrometry based on phase conjugation by resonant degenerate four-wave mixing in an analytical flame
Published in Analytical chemistry (Washington) (15-03-1987)Get full text
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Absorbance detection of amino acids by laser wave mixing in microbore liquid chromatography
Published in Journal of Chromatography A (01-05-1998)“…Nonlinear optical phase conjugation by degenerate four-wave mixing is demonstrated as a sensitive “absorbance” detection method for microbore high-performance…”
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14
Sensitive absorbance detection method for capillary electrophoresis based on laser wave-mixing
Published in Journal of Chromatography A (27-06-1997)“…Forward-scattering four-wave mixing is demonstrated as a sensitive absorbance detection method for capillary electrophoresis, using an argon ion laser…”
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Sensitive circular dichroism spectroscopy based on nonlinear degenerate four-wave mixing
Published in Analytical chemistry (Washington) (01-11-1993)“…Degenerate four-wave mixing is demonstrated as an effective and sensitive laser analytical spectroscopic method for circular dichroism measurements. A…”
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Forward-scattering degenerate four-wave mixing as a simple sub-attomole-sensitive nonlinear laser analytical spectrometric method
Published in Analytical chemistry (Washington) (15-01-1993)“…Optical phase conjugation by "forward-scattering" degenerate four-wave mixing in an absorbing liquid analyte solution is reported as a sensitive and simple…”
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17
Circular Dichroism Spectroscopy Using Coherent Laser-Induced Thermal Gratings
Published in Journal of the American Chemical Society (03-09-1997)“…A new pulsed four-wave mixing technique for the detection and real-time measurement of circular dichroism (CD) in liquid samples is demonstrated. The technique…”
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Circular Dichroism Spectroscopy by Four-Wave Mixing Using Polarization Grating-Induced Thermal Gratings
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (01-05-1997)“…A novel four-wave mixing technique for the measurement of circular dichroism in optically active liquid samples is demonstrated. When two cross-polarized…”
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Stable isotope ratio analysis at trace concentrations using degenerate four-wave mixing with a circularly polarized pulsed probe beam
Published in Analytical chemistry (Washington) (01-05-1991)“…Stable isotope analysis based on vectorial optical-phase conjugation by resonant degenerate four-wave mixing (D4WM) is reported by using a D4WM method with…”
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20
Trace-concentration detection of cobalt in a liquid flow cell by degenerate four-wave mixing using low-power off-resonant laser excitation
Published in Analytical chemistry (Washington) (15-09-1991)“…Optical phase conjugation by degenerate four-wave mixing (D4WM) in an absorbing metal-ion solution using a low-power argon-ion laser as the excitation source…”
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