Monitoring X-ray radiation can improve the precision of radiotherapy in gastrointestinal (GI) cancer treatment. However, the current clinical dosimeters are expensive. Moreover, they measure the radiation by placing them on the skin and also absorb radiation, resulting in a reduction of radiotherapy dosage. To overcome these challenges, researchers from the National University of Singapore developed a swallowable X-ray dosimeter capsule (Figure 1) and tested it in rabbits . Figure 1 .
Swallowable X-ray dosimeter capsule and its components (Source: Hou B et al. 2023) The 18 mm x 7 mm sized X-ray dosimeter capsule contains nanoscintillators, optical fibers, a pH-sensitive polyaniline film, and temperature sensors. The capsule can measure the X-ray radiation and changes in pH and temperature in real-time . A mobile phone app can receive the data from the capsule through Bluetooth and…
