Search Results - "Parker, W A"

Bulk Raman Analysis of Pharmaceutical Tablets by Matousek, P., Parker, A. W.

“…We compare and contrast two Raman collection geometries, backscattering and transmission, to identify their potential for monitoring the bulk chemical…”
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Subsurface Probing in Diffusely Scattering Media Using Spatially Offset Raman Spectroscopy by Matousek, P., Clark, I. P., Draper, E. R. C., Morris, M. D., Goodship, A. E., Everall, N., Towrie, M., Finney, W. F., Parker, A. W.

“…We describe a simple methodology for the effective retrieval of Raman spectra of subsurface layers in diffusely scattering media. The technique is based on the…”
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Non-invasive probing of pharmaceutical capsules using transmission Raman spectroscopy by Matousek, P., Parker, A. W.

“…We demonstrate how transmission Raman geometry can be effectively used for non‐invasive probing of the content of pharmaceutical capsules. This approach is…”
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Symptoms of heat illness in surface mine workers by Hunt, A. P., Parker, A. W., Stewart, I. B.

“…Objective To assess the symptoms of heat illness experienced by surface mine workers. Methods Ninety-one surface mine workers across three mine sites in…”
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Numerical Simulations of Subsurface Probing in Diffusely Scattering Media Using Spatially Offset Raman Spectroscopy by Matousek, P., Morris, M. D., Everall, N., Clark, I. P., Towrie, M., Draper, E., Goodship, A., Parker, A. W.

“…We present the first elementary model predicting how Raman intensities vary for a range of experimental variables for spatially offset Raman spectroscopy…”
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Measurement of long-range repulsive forces between charged particles at an oil-water interface by Aveyard, R, Binks, B P, Clint, J H, Fletcher, P D I, Horozov, T S, Neumann, B, Paunov, V N, Annesley, J, Botchway, S W, Nees, D, Parker, A W, Ward, A D, Burgess, A N

“…Using a laser tweezers method, we have determined the long-range repulsive force as a function of separation between two charged, spherical polystyrene…”
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Use of near infrared femtosecond lasers as sub-micron radiation microbeam for cell DNA damage and repair studies by Botchway, S.W., Reynolds, P., Parker, A.W., O’Neill, P.

“…Laser induced radiation microbeam technology for radiobiology research is undergoing rapid growth because of the increased availability and ease of use of…”
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Prediction of Sublayer Depth in Turbid Media Using Spatially Offset Raman Spectroscopy by Macleod, N. A, Goodship, A, Parker, A. W, Matousek, P

“…We demonstrate experimentally the feasibility of monitoring the depth of optically thick layers within turbid media using spatially offset Raman spectroscopy…”
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Depth Profiling in Diffusely Scattering Media Using Raman Spectroscopy and Picosecond Kerr Gating by Matousek, P., Everall, N., Towrie, M., Parker, A. W.

“…We demonstrate how pulsed laser Raman excitation (∼1 ps) followed by fast optical Kerr gating (∼4 ps) can be used to effectively separate Raman signals…”
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Fluorescence suppression in resonance Raman spectroscopy using a high-performance picosecond Kerr gate by Matousek, P., Towrie, M., Ma, C., Kwok, W. M., Phillips, D., Toner, W. T., Parker, A. W.

“…A high‐performance Kerr gate designed for the suppression of fluorescence in both time‐resolved and steady‐state resonance Raman spectroscopy is described and…”
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Structure and Vibrational Dynamics of Model Compounds of the [FeFe]−Hydrogenase Enzyme System via Ultrafast Two-Dimensional Infrared Spectroscopy by Stewart, A. I, Clark, I. P, Towrie, M, Ibrahim, S. K, Parker, A. W, Pickett, C. J, Hunt, N. T

“…Ultrafast two-dimensional infrared (2D) spectroscopy has been applied to study the structure and vibrational dynamics of (μ-S(CH2)3S)Fe2(CO)6, a model compound…”
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Desorption of Hot Molecules from Photon Irradiated Interstellar Ices by Thrower, J. D, Burke, D. J, Collings, M. P, Dawes, A, Holtom, P. D, Jamme, F, Kendall, P, Brown, W. A, Clark, I. P, Fraser, H. J, McCoustra, M. R. S, Mason, N. J, Parker, A. W

“…We present experimental measurements of photodesorption from ices of astrophysical relevance. Layers of benzene and water ice were irradiated with a laser…”
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Topological triplon modes and bound states in a Shastry–Sutherland magnet by McClarty, P. A., Krüger, F., Guidi, T., Parker, S. F., Refson, K., Parker, A. W., Prabhakaran, D., Coldea, R.

“…A detailed experimental investigation on the spin excitations in SrCu 2 (BO 3 ) 2 under an external magnetic confirms the existence of topological triplon…”
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Sequence-Dependent Melting and Refolding Dynamics of RNA UNCG Tetraloops Using Temperature-Jump/Drop Infrared Spectroscopy by Howe, C. P., Greetham, G. M., Procacci, B., Parker, A. W., Hunt, N. T.

“…Time-resolved temperature-jump/drop infrared (IR) spectroscopy has been used to measure the impact of stem base sequence on the melting and refolding dynamics…”
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Efficient Rejection of Fluorescence from Raman Spectra Using Picosecond Kerr Gating by Matousek, P., Towrie, M., Stanley, A., Parker, A. W.

“…An efficient method for the rejection of fluorescence from picosecond time-resolved resonance Raman (ps-TR3) spectra, applicable also to ground-state Raman…”
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Measuring RNA UNCG Tetraloop Refolding Dynamics Using Temperature-Jump/Drop Infrared Spectroscopy by Howe, C. P., Greetham, G. M., Procacci, B., Parker, A. W., Hunt, N. T.

“…Determining the structural dynamics of RNA and DNA is essential to understanding their cellular function, but direct measurement of strand association or…”
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A 100 kHz Pulse Shaping 2D-IR Spectrometer Based on Dual Yb:KGW Amplifiers by Donaldson, P.M, Greetham, G.M, Shaw, D.J, Parker, A.W, Towrie, M

“…A high-speed, high-sensitivity and compact two-dimensional infrared (2D-IR) spectrometer based on 100 kHz Yb:KGW regenerative amplifier technology is described…”
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Excited States of 4-Aminobenzonitrile (ABN) and 4-Dimethylaminobenzonitrile (DMABN):  Time-resolved Resonance Raman, Transient Absorption, Fluorescence, and ab Initio Calculations by Ma, C, Kwok, W. M, Matousek, P, Parker, A. W, Phillips, D, Toner, W. T, Towrie, M

“…Structures of the locally excited (LE) states of 4-aminobenzonitrile (ABN) and 4-dimethylaminobenzonitrile (DMABN) have been studied by picosecond…”
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A Determination of the Structure of the Intramolecular Charge Transfer State of 4-Dimethylaminobenzonitrile (DMABN) by Time-Resolved Resonance Raman Spectroscopy by Kwok, W. M, Ma, C, Matousek, P, Parker, A. W, Phillips, D, Toner, W. T, Towrie, M, Umapathy, S

“…Picosecond time-resolved resonance Raman spectra of the A (intramolecular charge transfer, ICT) state of DMABN, DMABN-d 6 and DMABN-15 N have been obtained…”
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Fluorescence background suppression in Raman spectroscopy using combined Kerr gated and shifted excitation Raman difference techniques by Matousek, P., Towrie, M., Parker, A. W.

“…An exceptionally high level of fluorescence rejection from resonance Raman spectra was achieved using a combination of two techniques, namely Kerr gated…”
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