ResourceSpectroscopy
Improved Understanding of the Thermal Stability of a Monoclonal Antibody and its Modified Version by Use of DLS/Raman Spectroscopy
27 Jul 2014The combination of Dynamic Light Scattering (DLS) with Raman Spectroscopy provides the capability to investigate a wealth of chemical, structural, and physical parameters about biotherapeutic proteins under formulation conditions. This white paper demonstrates that by simultaneously monitoring both the colloidal (DLS) and conformational (Raman) stability of a template monoclonal antibody (mAb) and a modified monoclonal antibody (mmAb) provides significant insights into the mechanistic effects of thermal stress on the mAb and the mmAb.
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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.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.Drug DeliveryDrug Delivery refers to dosage form, route of administration, formulations, technologies, and systems for transporting a pharmaceutical compound in the body as needed to safely achieve its desired therapeutic effect. Drug delivery is often approached via the biopharmaceutical or small molecule drug's formulation, but it may also involve medical devices or drug-device combination products. Considerations include instrumentation, software and services. Protein 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.BiotherapeuticsBiotherapeutics are proteins and other compounds (such as nucleic acids) produced by living organisms that have uses as therapeutics or in <i>in vivo</i> diagnostics. The most well-known example of a biotherapeutic product, and the first to be approved for therapeutic use, was recombinant human insulin.