Karen Steward PhD

Science Writer

Latest Content From Karen Steward PhD

Lipidomics Opens Doors to Understanding Stem Cell Differentiation
Article

It has long been known that the fats we consume in our diet can have an impact on our health. However, their implications on cell differentiation has not previously been understood. We spoke to Professor Ilya Levental about his group's exciting work in this field, the role of lipidomics and how this may affect the future of healthcare.

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NMR Spectroscopy: A Brief Guide
Article

Nuclear magnetic resonance spectroscopy is a non-destructive analytical technique that enables interrogation of the nature and structure of organic compounds. It is proving an invaluable tool in food provenance investigation and recent advances to improve analysis speed and sensitivity look set to continue this trend.

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Quantitative Proteomics in Precision Medicine
Article

Medicine has been moving away from a "one-size-fits-all" approach towards predictive, preventive and treatment strategies tailored to the individual - precision medicine. Quantitative proteomics is playing an important part in this process but there are still some areas in which improvements must be seen before assays are likely to be routinely available to clinicians and patients.

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Pesticide Residue Quantitation: Pushing the Limits of Detection using LC-MS/MS
Blog

To gain an in-depth understanding of pesticide residue detection in food, and how improved quantitation technology is helping to overcome analytical challenges, we talked with Dr. Debadeep Bhattacharyya, Sr. Manager of Product Marketing at Thermo Fisher Scientific Inc.

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Rapid Test Identifies Wildfire Taint in Wine Grapes
Article

Scientists have devised a new rapid and accurate test to enable wine producers to evaluate the effects of wildfire smoke damage on their crops prior to wine production. We spoke to Dr Wesley Zandberg about the new approach and how science is working with the wine industry.

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Diamond Light Source in its Anniversary Year
Article

The UK’s national synchrotron, Diamond Light Source, celebrates its double anniversary this year. 2017 sees them mark 15 years since the company was formed, and on the 19th October, they commemorated 10 years since their official opening by Her Majesty the Queen.

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SWATH-MS Generates Highly Reproducible Data
Article

Scientists looked to address the quantitative and qualitative reproducibility of SWATH-mass spectrometry (MS). The study concluded that detection of large numbers of proteins from highly heterogeneous samples is not only feasible but provides reliable and reproducible quantitative results.

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Pumpkins Hold the Key to Natural Disinfectants
Article

Specific bacterial communities found on Styrian oilseed pumpkins were found to produce highly effective volatiles that inhibited the growth of both human and plant pathogens. The discovery has been applied to decontamination of hatching eggs which is currently performed using toxic formaldehyde.

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New Crystal Structure of (Ph)PINK1 Aids Understanding of Early Onset Parkinson’s
Article

Scientists have determined the crystal structure of PhPINK1 bound to it's substrate ubiquitin. Mutations of PINK1 are associated with early onset Parkinson's disease and it is expected that this information will help the design of Parkinson's therapeutics.

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Utilising Liquid Chromatography for Evaluating Toxic Histones in Packaged Fish
Article

Researchers utilised liquid chromatography to investigate the effects of polyethylene packaging (PEP) in air versus vacuum packaging (VP) on deterioration of fish products, a common cause of scombroid food poisoning.

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