Blog

Understanding Antimicrobial/Preservative Effectiveness in Everyday Products

Toothpaste, lotions, cosmetics, eye drops and medications are just some of the products that we all use on a daily basis.  Unfortunately, there are two ways that these products can…

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Microbiology Video: Testing Antimicrobial Activity and Cytotoxicity of Wound and Skin Cleansers

A comprehensive strategy for evaluating wound care products are studying their antimicrobial activity and potential cytotoxicity for relevant cell types. NMR capabilities extend well beyond the 1-dimensional 1H NMR spectra…

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Calibration of the Variable Temperature NMR Thermocouple

The variable temperature (VT) unit on our machine uses a thermocouple wire to measure the temperature of “the sample.” However, because the thermocouple wire does not physically touch the sample…

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Chemistry Video: EP’s NMR services

NMR capabilities extend well beyond the 1-dimensional 1H NMR spectra that organic chemists typically acquire. We strive to educate organic chemists on the techniques that can help them obtain the…

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Testing Antimicrobial Activity and Cytotoxicity of Wound and Skin Cleansers

Chronic non-healing wounds, such as venous ulcers, diabetic ulcers, and pressure ulcers cause tremendous patient suffering. Treatment of such wounds presents a serious unmet medical need. Strategies that optimize the…

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Screening for Inhibitors of Bacterial Multidrug Efflux Pumps

Microbial resistance to drug therapy is an area of increasing concern (https://www.cdc.gov/drugresistance/). The emergence of drug resistance in microorganisms can occur by several different mechanisms (Debabov, 2013), one particular mechanism…

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Quantitation of Polysorbate 80 in a Commercial Product

Contact the Author Polysorbate 80 is a surfactant and emulsifier frequently found in foods, drug products, as well as in biochemical solutions and preparations.  Although its presence in foods is…

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EP offers Quantitative Biofilm Models for Today’s Research Needs

Microbiology Services – Quantitative Biofilm Service Assay Microbial biofilms are everywhere. Biofilm formation occurs when planktonic cells (bacteria, yeast, fungi, etc) attach and colonize living or non-living surfaces.  Plaque on…

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Diffusion-Ordered Spectroscopy (DOSY)

Contact the Author Diffusion-Ordered SpectroscopY (DOSY) is a technique in which a mixture of signals from a mixture of compounds can be separated on the basis of their diffusion coefficients. …

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Assignment of Complex NMR Spectra

Do you have a need for NMR services beyond basic 1-D proton spectra? Do you need expertise in analyzing and interpreting NMR data for discussions or presentations or publications?  We can help by…

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