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Solid-state transformations of sulfathiazole polymorphs: The effects of milling and humidity
(American Chemical Society, 2013-07-11)
The effect of milling on the transitions of sulfathiazole polymorphs in the absence and presence of solvent and excipients was monitored by X-ray powder diffraction (XRPD), attenuated total reflectance infrared (ATR-IR), ...
Prediction of Cell Culture Media Performance Using Fluorescence Spectroscopy
(2010)
Cell culture media used in industrial mammalian cell culture are complex aqueous solutions that are inherently difficult to analyze comprehensively. The analysis of media quality and variance is of utmost importance in ...
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 ...
Kernel principal component analysis residual diagnosis (KPCARD): an automated method to remove cosmic ray artefacts in Raman spectra.
(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 ...
Chemometric approaches to low-content quantification (LCQ) in solid-state mixtures using Raman mapping spectroscopy.
(Royal Society of Chemistry, 2017-10-30)
The low-content quantification (LCQ) of active pharmaceutical ingredients or impurities in solid mixtures is important in pharmaceutical manufacturing and analysis. We previously demonstrated the feasibility of using Raman ...
Rapid quantification of tryptophan and tyrosine in chemically defined cell culture media using fluorescence spectroscopy
(2012)
The rapid and inexpensive analysis of the complex cell culture media used in industrial mammalian cell culture is required for quality and variance monitoring. Excitation-emission matrix (EEM) spectroscopy combined with ...
Using surface-enhanced Raman scattering (SERS) and fluorescence spectroscopy for screening yeast extracts, a complex component of cell culture media
(2012)
Yeastolate or yeast extract, which are hydrolysates produced by autolysis of yeast, are often employed as a raw material in the media used for industrial mammalian cell culture. The source and quality of yeastolate can ...
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 ...
Monitoring local unfolding of bovine serum albumin during denaturation using steady-state and time-resolved fluorescence spectroscopy
(Springer, 2010-03)
In a previous report (J. Fluoresc. 16, 153, 2006) we studied the chaotropiclly induced denaturation of Bovine Serum Albumin (BSA) using the fluorescence decay kinetics at different stages in the denaturation of BSA by ...
Super stable fluorescein isothiocyanate isomer I monolayer for total internal reflection fluorescence microscopy
(American Chemical Society, 2018-08-27)
Total internal reflection fluorescence microscopy (TIRFM) is an important method in surface science and for the analysis of surface-bound macromolecules. Here, we developed and explored the use of a novel fluorescein ...