Browsing by Subject "Chemometrics"
Now showing items 1-20 of 32
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Accurate anisotropy recovery from fluorophore mixtures using Multivariate Curve Resolution (MCR)
(Elsevier, 2017-11-22)Anisotropy resolved multidimensional emission spectroscopy (ARMES) provides valuable insights into multi-fluorophore systems like proteins that have complex overlapping emission bands. The method combines multidimensional ... -
Anisotropy resolved multi-dimensional emission spectroscopy (ARMES): a new tool for the quantitative and structural analysis of proteins
(NUI Galway, 2016-03-24)The quantitative and structural analysis of proteins is of great importance in numerous fields (from industrial to academic research). Requirements like ease of analysis, sample handling, robustness, analysis time, the ... -
Anisotropy Resolved Multidimensional Emission Spectroscopy (ARMES) as a tool for biophysical analysis
(NUI Galway, 2021-10)The development of analytical tools for the biophysical analysis of biological samples is an area of tremendous application and potential. In this work the use and efficacy of an analytical methodology, known as anisotropy ... -
Anisotropy resolved multidimensional emission spectroscopy (ARMES) for the analysis and resolution of insulin oligomer emission
(NUI Galway, 2018-11-14)Protein aggregation is one of the biggest challenges affecting the manufacture and safe use of biopharmaceuticals. Despite efforts made to enhance protein stability [1], aggregation still remains a critical factor in ... -
Anisotropy Resolved Multidimensional Emission Spectroscopy (ARMES) for the analysis of Immunoglobulin G (IgG) type proteins
(NUI Galway, 2020-10-02)Immunoglobulin G (IgG) is the main antibody used in the biopharmaceutical industry for therapeutic purposes. Monoclonal antibodies (mAb) are growing in the marked due to its high specificity and safety. Physical and ... -
Anisotropy resolved multidimensional emission spectroscopy (ARMES): A new tool for protein analysis
(Elsevier, 2015-07-30)Structural analysis of proteins using the emission of intrinsic fluorophores is complicated by spectral overlap. Anisotropy resolved multidimensional emission spectroscopy (ARMES) overcame the overlap problem by the use ... -
Applications of raman spectroscopy in biopharmaceutical manufacturing: A short review
(Sage Publications, 2017-05-23)The production of active pharmaceutical ingredients (APIs) is currently undergoing its biggest transformation in a century. The changes are based on the rapid and dramatic introduction of protein- and macromolecule-based ... -
Classification of a Target Analyte in Solid Mixtures using Principal Component Analysis, Support Vector Machines and Raman Spectroscopy
(2005)The quantitative analysis of illicit materials using Raman spectroscopy is of widespread interest for law enforcement and healthcare applications. One of the difficulties faced when analysing illicit mixtures is the ... -
Classification of narcotics in solid mixtures using principal component analysis and Raman spectroscopy
(ASTM International, 2002-03-01)Eighty-five solid samples consisting of illegal narcotics diluted with several different materials were analyzed by near-infrared (785 nm excitation) Raman spectroscopy. Principal Component Analysis (PCA) was employed to ... -
Development of mid-infrared spectroscopic methods for the determination of soil chemical quality in tillage fields
(NUI Galway, 2021-04-30)Healthy soils are the foundation for a prosperous future by providing nutrition, clean water, and the basis for all biodiversity on land. But soil health is threatened by soil degradation and climate change. To improve ... -
The Effect of Principal Component Analysis on Machine Learning Accuracy with High Dimensional Spectral Data
(2005)The classi¿cation of high dimensional data, such as images, gene-expression data and spectral data, poses an interesting challenge to machine learning, as the presence of high numbers of redundant or highly correlated ... -
Evaluating the interaction of human serum albumin (HSA) and 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) liposomes in different aqueous environments using anisotropy resolved multi-dimensional emission spectroscopy (ARMES)
(Elsevier, 2022-01-07)Studying the interaction between plasma proteins and liposomes is critical, particularly for their use as drug delivery systems. Here, the efficacy of anisotropy resolved multidimensional emission spectroscopy (ARMES) for ... -
Fluorescence EEM Spectroscopy for Rapid Identification and Quality Evaluation of Cell Culture Media Components.
(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, ... -
Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis
(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 ... -
Investigating native state fluorescence emission of Immunoglobulin G using polarized Excitation Emission Matrix (pEEM) spectroscopy and PARAFAC
(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 ... -
Low-content quantification in powders using Raman spectroscopy: a facile chemometric approach to sub 0.1% limits of detection.
(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 ... -
A Machine Learning Application for Classification of Chemical Spectra
(2008)This paper presents a software package that allows chemists to analyze spectroscopy data using innovative machine learning (ML) techniques. The package, designed for use in conjunction with lab-based spectroscopic ... -
Modelling Förster resonance energy transfer (FRET) using anisotropy resolved multi-dimensional emission spectroscopy (ARMES)
(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. ... -
Monitoring cell culture media degradation using surface enhanced Raman scattering (SERS) spectroscopy
(Elsevier (Science Direct), 2014-06-13)The quality of the cell culture media used in biopharmaceutical manufacturing is a crucial factor affecting bioprocess performance and the quality of the final product. Due to their complex composition these media are ... -
Multi-Dimensional Fluorescence Spectroscopy for Quantitative Cell Culture Media Analysis
(2012-10-17)Industrial mammalian cell culture uses complex media, such as eRDF, to support cell growth and product formation as an integral part of the process; as a result the analysis of media variance/quality is of critical ...