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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
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Ultraviolet-Visible Spectroscopy

Download this infographic to explore how UV-Vis spectroscopy works, what it can tell us, its strengths and limitations and its applications.
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Lab Sustainability

For the future of our planet, we all know it is important to address the sustainability of our practices, tools and workspaces across the sectors. Science is no exception. But it’s also critical that, in carrying out scientific research in a more environmentally sustainable way, safety and quality are maintained.
Two female scientists look at a test tube.

Celebrating Female Scientists on International Women’s Day

To celebrate International Women’s Day, Technology Networks is delighted to showcase the work of Dr. Angela Calderón, associate professor in drug discovery and development at Auburn University in the United States.
A prototype of the solar still, some orange peel in a dish and a container of MXene powder with a lab in the background.

How Do You Make a Water Purifier From Fruit Waste?

Singapore scientists have demonstrated that fruit peels can be used to purify water, an innovation that can be employed in remote areas and disaster zones where electricity access is limited.
Scientist manipulating a meat sample with tweezers in a Petri dish.
Industry Insight

An Authentic Approach to Food Safety

Dr. Mary McBride and Professor Chris Elliott, world-renowned for his work in food safety and authenticity, discuss his career to date, his passion for food safety, the projects his team are working on and the future.
Lady holding up a lateral flow test displaying a control line but no test line.

An Introduction to the Lateral Flow Test: Strengths, Limitations and Applications

Diagnostic testing is key in many areas including healthcare and preventative medicine, food safety and environmental monitoring. In this article, we will consider what lateral flow tests (LFTs) are, how they work and their applications.
Cubes of Turkish delight dusted in powdered sugar.

NMR Relaxometry Reveals Turkish Delight’s Sticky Fingerprints

Scientists have shown the value of time-domain nuclear magnetic resonance (TD-NMR) relaxometry in evaluating the physical properties of Turkish delight made with syrups and sweeteners as alternatives to sugar.
A 96-well cell culture plate into which a multichannel pipette is being inserted to withdraw media samples.

How Spent Media Analysis Could Pave the Way to Affordable Alternative Proteins

We spoke to Professor Jenny Nelson and Edward O’Neill to find out how spent media analysis could help to drive down costs and make cell cultured proteins an affordable reality for consumers.
Food Safety Testing – Veterinary Drug Residues content piece image

Food Safety Testing – Veterinary Drug Residues

This infographic addresses the issue of veterinary drug residues in foods, the dangers they pose and measures taken to detect and prevent them from reaching the consumer.
Battery Materials Analysis content piece image

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.