Putting TB to the test: My journey so far
By Harriet Gliddon, winner of the IGHI Student Challenges Competition 2015-16
During March 2016, I blogged for IGHI on World TB Day about my experiences of entering the Student Challenges Competition.
The intervening six months have been busier than I could have imagined, and filled with things like delivering an invited talk at the Biosensors Summit in Sweden, submitting my PhD thesis and completing an internship at the World Health Organization.
Despite the chaos, I’ve managed to make some exciting advances with the nanomaterial-based diagnostic test for TB that I presented at the Student Challenges Competition. One component of this work has focused on validating the genetic markers that are the biological targets, or biomarkers, of the test. I have used various methods, some well established and others more experimental, to assess the reliability of the biomarkers in discriminating between patients with and without TB. As I said in March, this work is a real team effort and a large proportion of the analysis was conducted by Dr Myrsini Kaforou, who I’m very grateful to. The biomarkers validated extremely well across multiple platforms, which proves their robustness regardless of the HIV infection status of patients, and across geographical locations (Malawi and South Africa), showing that they’re robust and reproducible for use as diagnostic markers of TB. This work is currently being prepared for publication, so keep an eye out for it in the next few months!
I have been keen to use mobile phone technology to translate the current assay, which currently requires a relatively sophisticated plate reader to record the results, into something more appropriate for use in field settings. Through the i-sense EPSRC Interdisciplinary Research Centre (IRC), my colleagues and I have been lucky enough to work with Dr Matthew Penny and Dr Steve Hilton from UCL, who have developed a working prototype of a mobile phone spectrometer that can sensitively detect the fluorescence of quantum dots (the nanoparticles I have been working with). (more…)


The 6th October marked a rather sad day for me and for my little family. On this day in 2015, I was admitted to hospital for a procedure called ERPC which stands for Evacuation of Retained Products of Conception and means a surgical removal of the remains of a pregnancy. It was a day that I had never thought I would ever have to experience and yet it happened to us. Just as it happens to more than one in five pregnancies in the UK every year – around a quarter of a million each year…

The World Health Organisation recognises the 10th of October as 


The day you killed yourself was a Wednesday and when my husband called to tell me I was at work. I felt dizzy in the sunny and overheated hallway in the hospital where I work. I sat down and cried right there, in the hallway on a radiator. And I didn’t care that doctors, patients and colleagues were walking past me, looking away, probably feeling bad for me, but feeling uncomfortable and not knowing how to help.