0000000000172877

AUTHOR

Hugh J. Byrne

0000-0002-1735-8610

showing 2 related works from this author

Combining Pharmacokinetics and Vibrational Spectroscopy: MCR-ALS Hard-and-Soft Modelling of Drug Uptake In Vitro Using Tailored Kinetic Constraints

2022

Raman microspectroscopy is a label-free technique which is very suited for the investigation of pharmacokinetics of cellular uptake, mechanisms of interaction, and efficacies of drugs in vitro. However, the complexity of the spectra makes the identification of spectral patterns associated with the drug and subsequent cellular responses difficult. Indeed, multivariate methods that relate spectral features to the inoculation time do not normally take into account the kinetics involved, and important theoretical information which could assist in the elucidation of the relevant spectral signatures is excluded. Here, we propose the integration of kinetic equations in the modelling of drug uptake…

Multivariate Curve Resolution-Alternating Least SquaresBiological and Chemical PhysicsSystems BiologyMultivariate Curve Resolution-Alternating Least Squares; pharmacokinetics; Raman microspectroscopy; chemometricsGeneral MedicineSpectrum Analysis RamanRaman microspectroscopyKineticsMultivariate AnalysisHumansPharmacokineticsLeast-Squares AnalysisChemometricsBiochemistry Biophysics and Structural Biology
researchProduct

ATR-Spin: an open-source 3D printed device for direct cytocentrifugation onto attenuated total reflectance crystals.

2021

Infrared Spectroscopy (IR) enables the direct and rapid characterization of cells at the molecular level. Achieving a rapid and consistent cell preparation is critical for the development of Point-of-Care diagnostics for cell analysis. Here we introduce an open-source, 3D printed device for integrating the isolation, preconcentration, and measurement of attenuated total reflectance IR spectra of cells from biofluids. The tool comprises a disposable card for cytocentrifugation, equipped with magnets, which allows reproducible integration into the pathlength of the IR spectrophotometer. Preliminary results using cell media containing A459 cells indicate that this system enables a qualitative …

3d printedMaterials scienceSpectrophotometry Infraredbusiness.industryCell preparation010401 analytical chemistryBiomedical EngineeringInfrared spectroscopyBioengineeringCell analysis02 engineering and technologyGeneral Chemistry021001 nanoscience & nanotechnology01 natural sciencesBiochemistry0104 chemical sciencesOpen sourceMolecular levelAttenuated total reflectionPrinting Three-DimensionalSpectroscopy Fourier Transform InfraredOptoelectronics0210 nano-technologybusinessLab on a chip
researchProduct