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Karen Steward PhD

Senior Science Writer

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After completing an undergraduate degree in Natural Sciences at the University of Cambridge in 2006, Karen became a research scientist at the Animal Health Trust, UK. During her time there, she completed a PhD in molecular microbiology and evolutionary genetics in partnership with the University of Cambridge and went on to hold a post-doctoral position. Her research focused on the fundamental biology of infectious diseases, outbreak analysis and the development of vaccines and diagnostic assays. In 2017 she left the lab to pursue a career in science communication. As senior science writer, Karen employs her wealth of knowledge and hands-on experience to coordinate and create a range of scientific content, tools and resources for the site and provide scientific support across the teams.

Latest Content

Battery Materials Analysis

In this infographic, we explore the need for battery materials analysis, in particular lithium ion (Li–ion) batteries, and the techniques that facilitate this.

Airborne Microplastics

Download this infographic to explore the emerging issue of airborne microplastics, their sources and detection and possible impacts on human health and the environment.

Future Foods

In this infographic, we explore the problems in supplying a growing population with food, novel solutions to producing food sustainably and how reducing waste in the food system can benefit people and the planet.

An Introduction to Electroporation – A Tool for Transfection and Competent Cell Generation

There are many reasons you may want to deliver something into a cell, be it genetic material or a therapeutic drug, and electroporation is a vital tool to achieve this. In this article, we will consider what electroporation is, how it works and how it’s used.

Data Sharing Initiative Could Improve Our Understanding and Help To Reduce Antimicrobial Resistance

Antimicrobial resistance is a looming global threat for which we need a better understanding to tackle. We hear how a non-profit organization are helping scientists share valuable data effectively with the launch of the AMR register.
Industry Insight

Molecular Spectroscopy Evolves To Meet Changing Pharma and Biopharma Needs

We spoke to Geoff Winkett and Michel van den Berge from Agilent, about the concerns they hear from their customers in the pharmaceutical and biopharmaceutical sector and how they are helping to address them.
Industry Insight

Investing in the Future of Our People and Our Planet Through Science

We spoke to Geoff Winkett and Michel van den Berge from Agilent, about the importance of fostering academia–industry relationships and how the issue of sustainability is shaping the way they approach the development of new and existing solutions.

Ion Chromatography

Learn about ion chromatography, the mechanisms of separation incorporated in this family of techniques and some of the uses and interest areas IC is being applied to.

Opinionated Science Episode 41: Decoding Pig Grunts, Reviving the Christmas Rat and Your Gut vs Sushi

In the latest Opinionated Science, the TN team looks at a study of pigs’ emotions that may put you off your bacon, discover why an extinct rat shows the challenges of bringing species back from the dead and explore why bacteria of oceanic origin are key to your gut’s ability to digest a humble maki roll.


Polyacrylamide Gel Electrophoresis, How It Works, Technique Variants and Its Applications

In this article, we will consider how polyacrylamide gel electrophoresis (PAGE) works, how it can be interpreted and some of its applications.