Skip to content

Chemistry for Medicine

Share on facebook
Share on twitter
Share on linkedin

Written by Kristina Farrugia

Kristina Farrugia, part of the research team. Photo by Jean Claude Vancell
Kristina Farrugia, part of the research team. Photo by Jean Claude Vancell

In medicine a timely and accurate diagnosis can decide the chances of survival of a patient. Supramolecular Chemistry is a field that explores the design of intelligent molecules that can assist doctors when taking lifesaving decisions. These intelligent molecules can identify the type and amount of proteins in a patient’s blood or tissue that would indicate disease—in a similar method to blood glucose test strips.

Kristina Farrugia (supervised by Dr David C. Magri) recently designed a series of eight novel intelligent molecules based on the thiourea (structurally similar to urea) unit. They were tested for their ability to detect inorganic anions involved in key biological processes such as fluoride, chloride, acetate, and phosphate. A drastic colour change visible to the naked eye signalled the successful interaction of the anions with the sensing molecules.

The colour changes were accurately observed by the techniques called UV-visible absorption and 2D 1H NMR titration spectrometry. They determined that the mechanism of anion detection was due to the deprotonation of the sensor molecules, through an acid-base reaction. This major finding goes contrary to previous research, where anions are reported to interact with the sensor molecules through complexation. Knowing a molecule’s mechanism of action is important since it will limit how these sensors can be used in patient diagnosis.

The molecules synthesised by Farrugia can serve as the basis for more complex systems. Supramolecular chemistry shows how chemistry can play a key role in the medicine of tomorrow.


This research was performed as part of Master of Science in Chemistry at the Faculty of Science, University of Malta. It is partly funded by STEPS (the Strategic Educational Pathways Scholarship—Malta). This scholarship is part-financed by the European Union—European Social Fund (ESF) under Operational Programme II—Cohesion Policy 2007-2013, ‘Empowering People for More Jobs and a Better Quality of Life’.

More to explorer

Maltese Innovation Promises New Era in Accessing Space

A team of researchers and engineers from the University of Malta’s Astrionics Research Group (ASTREA) are developing their own satellite and ground station for Malta to take its place in the night sky above.

Cutting EDGE Research: the Genomes of Maltese Plants

Conservation is a 21st century hot topic. It is a top priority worldwide to ensure the lasting protection of the planet and its natural resources. But how can we even begin to conserve our natural environment if we don’t understand it? Ines Ventura investigates.

Impressions on Branding

Our impression of a brand shapes our experience of the product or service involved. Five students from the Bachelor of Fine Arts (BFA) in Digital Arts looked into this, involving their own interests in the medium.

No comment yet, add your voice below!

Add a Comment

Your email address will not be published.