ResourceSpectroscopy
Morphologi G3-ID: Using Morphologically-Directed Raman Spectroscopy to Characterize Protein Aggregates in Suspension and on a Filter Membrane
27 Aug 2015The addition of Raman spectroscopy to an automated microscopy system provides a robust primary identification method for the verification of particle chemistry, and together the techniques offer the potential to enumerate, characterize, and identify particulates in native formulations, as well as those immobilized on a filter substrate. The Morphologi G3-ID, a hybrid optical microscope-Raman spectrometer from Malvern Instruments, provides the imaging power of a high-resolution optical microscope with the chemical identification capabilities of a benchtop Raman spectrometer, and is completely automatable. This application note explores the use of the Morphologi G3-ID for Morphologically-Directed Raman spectroscopy (MDRS) to identify and analyze contaminants including protein aggregates present in a stressed sample of lysozyme, and to compare particles held in suspension within a thin path wet cell with those collected on a filter membrane.
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Raman SpectroscopyRaman spectroscopy is used to discern the vibrational and rotational states of molecules and hence the chemical composition of a sample by measuring the inelastic scattering of monochromatic light. Explore a range of Raman spectrometers, including handheld/portable Raman spectrometers for QC/QA labs and in situ spectrometers for processes. Conduct Raman imaging for microanalysis of mixed samples using a Raman microscope. Raman spectrographs are also available. Find the best Raman spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.ProteomicsProteomics is the systemic bioinformatics study of proteins and amino acids, including their structure, size, function and identification. Tools used in proteomics include chromatography, blotting and gels, protein arrays, mass spectrometry and ELISA and associated analysis software. Analyzers and proteomic systems should be sensitive, high resolution, fast and may be automated for high-throughput.Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.AggregationProtein BiologyThe analysis of protein expression, identity and function is vital for many areas of life science research and drug discovery. Some of the most commonly used techniques in protein analysis include Western blotting, electrophoresis and mass spectrometry.Cell AnalysisThe analysis of cells allows researchers to understand the factors which contribute to cell health and function. These influencing processes can then be predicted and altered, leading to the development of medication and disease treatments.ImagingImaging techniques are essential for obtaining visual representations of samples to understand structures, processes, and function in biological, chemical, and physical research. These tools range from traditional light microscopy to advanced imaging modalities like MRI and electron microscopy, providing researchers with valuable data for diagnostics, drug discovery, and material analysis. Explore imaging solutions in our peer-reviewed product directory to compare products, check reviews, and get pricing directly from manufacturers.Particle Size AnalysisParticle size analysis describes the size distributions from sub-nanometer to millimeter of particulate samples. Size is an important physical property and the technique is often utilized in a range of industries, such as chemical, environmental and agriculture.SpectroscopySpectroscopy is a technique that analyzes the interaction of light with matter to study molecular properties, concentrations, and structural information. Widely used in chemical, pharmaceutical, and environmental analysis, spectroscopy offers insights into molecular composition and helps identify unknown compounds. It plays a key role in quality control, research, and diagnostics. Browse our peer-reviewed product directory to compare spectroscopy tools, read reviews, and get prices directly from manufacturers.