Browsing School of Chemistry by Author "Ryder, Alan G."
Now showing items 21-40 of 65
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Fluorescence analysis of thermoresponsive polymers
Morris, Cheryl; Ryder, Alan G. (Springer Verlag, 2015-12-18)The use of microscale thin polymer films is widespread in biomedical science and engineering, with applications in areas such as tissue engineering, drug delivery, microfluidic devices, bio-adhesion mediators, and ... -
A fluorescence anisotropy method for measuring protein concentration in complex cell culture media
Groza, RC,Calvet, A,Ryder, AG; Groza, Radu Constantin; Calvet, Amandine; Ryder, Alan G. (Elsevier, 2014-03-12)The rapid, quantitative analysis of the complex cell culture media used in biopharmaceutical manufacturing is of critical importance. Requirements for cell culture media composition profiling, or changes in specific analyte ... -
Fluorescence EEM Spectroscopy for Rapid Identification and Quality Evaluation of Cell Culture Media Components.
Li, Boyan; Ryan, Paul W.; Shanahan, Michael; Ryder, Alan G. (Ingenta, 2011-11)The application of fluorescence excitation-emission matrix (EEM) spectroscopy to the quantitative analysis of complex, aqueous solutions of cell culture media components was investigated. These components, yeastolate, ... -
Fluorescence emission from petroleum; a valuable information source for petroleum analysis.
Iwanski, Philippe; Montanari, Luciano; Ryder, Alan G. (EniTecnologie, 2004)Despite the fact that most crude oils are dark coloured liquids, many are observed to be strongly fluorescent when illuminated with UV light. This fluorescence, which originates from the presence of aromatic compounds, is ... -
Fluorescence lifetime based pH sensing using Resorufin
Ryder, Alan G.; Power, Sarah; Glynn, Thomas J. (2003)Accurate, non-contact pH sensing is of particular importance in the biological and clinical sciences. Fluorescence lifetime based pH sensing is potentially more useful than intensity based methods because of the reduced ... -
Fluorescence study of bovine serum albumin and Ti and Sn Oxide nanoparticles interactions.
Togashi, Denisio M.; Ryder, Alan G.; Mc Mahon, Deirdre; Dunne, Peter; McManus, James (The Optical Society, 2007)Nanochemistry offers stimulating opportunities for a wide variety of applications in the biosciences. Understanding of the interaction of nanoparticles with biomolecules such as proteins is very important as it can help ... -
Frequency domain fluorescence lifetime study of crude petroleum oils
Owens, Peter; Ryder, Alan G.; Blamey, Nigel J. (Springer Verlag, 2008-02-01)Frequency domain (FD) fluorescence lifetime data was collected for a series of 20 crude petroleum oils using a 405 nm excitation source and over a spectral range of similar to 426 to similar to 650 nm. Average fluorescence ... -
Hydrocarbon fluid inclusion fluorescence: A review
Blamey, Nigel J.F.; Ryder, Alan G. (Springer, 2007)Geological fluid inclusions are small voids that can contain a variety of liquids which are often found in natural minerals and rocks. Typically they are less than 10 micrometres in size that host fossil fluids which existed ... -
Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis
Ryder, Alan G.; O'Connor, G.M.; Glynn, T.J. (1999)Raman spectroscopy offers the potential for the identification of illegal narcotics in seconds by inelastic scattering of light from molecular vibrations. In this study cocaine, heroin, and MDMA were analyzed using near-IR ... -
Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis.
Ryder, Alan G.; O Connor, Gerard M.; Glynn, Thomas J. (ASTM International, 1999)Raman spectroscopy offers the potential for the identification of illegal narcotics in seconds by inelastic scattering of light from molecular vibrations. In this study cocaine, heroin, and MDMA were analyzed using near-IR ... -
Influence of chemical composition on the fluorescence lifetimes of crude petroleum oils
Ryder, Alan G.; Glynn, Thomas J.; Feely, Martin (Society of Photo-optical Instrumentation Engineers, 2003)Fluorescence based methods are increasingly being used for the analysis of crude oils because they offer high speed, low cost, non-contact, and non-destructive testing options. The fluorescence of crude oils is due to the ... -
Investigating native state fluorescence emission of Immunoglobulin G using polarized Excitation Emission Matrix (pEEM) spectroscopy and PARAFAC
Steiner-Browne, Marina; Elcoroaristizabal, Saioa; Casamayou-Boucau, Yannick; Ryder, Alan G. (Elsevier, 2018-12-20)Intrinsic fluorescence spectroscopy (IFS) measurements for protein structural analysis can be enhanced by the use of anisotropy resolved multidimensional emission spectroscopy (ARMES). ARMES attempts to overcome the ... -
Investigating tryptophan quenching of fluorescein fluorescence under protolytic equilibrium
Ryder, Alan G.; Szczupak, Boguslaw; Togashi, Denisio M.; Calvet, Amandine; O'Loughlin, Muireann (2009)Fluorescein is one of most used fluorescent labels for characterizing biological systems, such as proteins, and is used in fluorescence microscopy. However, if fluorescein is to be used for quantitative measurements involving ... -
Kernel principal component analysis residual diagnosis (KPCARD): an automated method to remove cosmic ray artefacts in Raman spectra.
Li, Boyan; Calvet, Amandine; Casamayou-Boucau, Yannick; Ryder, Alan G. (2016)A new, fully automated, rapid method, referred to as kernel principal component analysis residual diagnosis (KPCARD), is proposed for removing cosmic ray artifacts (CRAs) in Raman spectra, and in particular for large Raman ... -
Low Temperature Fluorescence Studies of Crude Petroleum Oils
Owens, Peter; Ryder, Alan G. (2011)We have studied the low-temperature (133-298 K) fluorescence emission of crude petroleum oils using a combination of steady-state and time-resolved measurements. This was done, first, to see if we could generate linear ... -
Low-content quantification in powders using Raman spectroscopy: a facile chemometric approach to sub 0.1% limits of detection.
Li, Boyan; Calvet, Amandine; Ryder, Alan G.; Casamayou-Boucau, Yannick; Morris, Cheryl (American Chemical Society, 2015-02-23)A robust and accurate analytical methodology for low-content (<0.1%) quantification in the solid-state using Raman spectroscopy, sub-sampling, and chemometrics was demonstrated using a piracetam–proline model. The method ... -
Machine learning methods for quantitative analysis of Raman spectroscopy data
Madden, Michael G.; Ryder, Alan G. (Society of Photo-optical Instrumentation Engineers (SPIE), 2003-08-27)The automated identification and quantification of illicit materials using Raman spectroscopy is of significant importance for law enforcement agencies. This paper explores the use of Machine Learning (ML) methods in ... -
Measuring the micro-polarity and hydrogen-bond donor/acceptor ability of thermoresponsive N-isopropylacrylamide/N-tert-butylacrylamide copolymer films using solvatochromic indicators
Szczupak, Boguslaw; Ryder, Alan G.; Togashi, Denisio M.; Rochev, Yuri A.; Glynn, Thomas J. (application/pdf, 2009)Thin polymer films are important in many areas of biomaterials research, biomedical devices, and biological sensors. The accurate in situ measurement of multiple physicochemical properties of thin polymer films is critical ... -
Measuring the Micro-Polarity and Hydrogen-Bond Donor/Acceptor Ability of Thermoresponsive N-Isopropylacrylamide/N-tert-Butylacrylamide Copolymer Films Using Solvatochromic Indicators
Ryder, Alan G.; Szczupak, Boguslaw; Togashi, Denisio M.; Rochev, Yuri A.; Glynn, Thomas J. (2009)Thin polymer films are important in many areas of biomaterials research, biomedical devices, and biological sensors. The accurate in situ measurement of multiple physicochemical properties of thin polymer films is critical ... -
Modelling Förster resonance energy transfer (FRET) using anisotropy resolved multi-dimensional emission spectroscopy (ARMES)
Gordon, Fiona; Elcoroaristizabal, Saioa; Ryder, Alan G. (Elsevier, 2020-11-16)Background Förster Resonance Energy Transfer (FRET) is widely used to study the structure and dynamics of biomolecular systems and also causes the non-linear fluorescence response observed in multi-fluorophore proteins. ...