From last few years scientists in medicine have been attempting to develop an efficient sensor that could be implanted into the human body which could track and monitor the development of diseases. This research would ensure correct course of treatment that is to be taken in each individual case moreover it will bring personalized medicine one step closer. Such sensor has been developed by a group of scientists for doing that particular job.
They designed a chemical sensor which is very small and is made up of goal-coated nanoparticles. When this sensor is planted into cells of the patient then it gives the feedback on various processes that are going inside. It works by way of measuring the properties of light which are bounced back by the sensor, as they are probed through a laser. In this way disease is monitored remotely depends upon the type of laser used.
Scientists focus most on the vibrations that proteins and other molecules in cell generate. When light hits the nanoparticles, photons inside cells are absorbed and then re-emitted. They cause proteins in their vicinity to vibrate at certain frequencies. As a disease progresses there is change in the shape and function of molecules inside the cells. The frequency of the vibrations they produce also changes. The team has sufficiently developed machines to detect and measure these minute changes. This machine sets the basis for their new system.
Dr Colin Campbell, the leader of the team that developed the new chemical sensors said that by creating a sensor that can safely be implanted into tissue and combining that with a sensitive light measurement technique, they have developed a useful device that would help diagnose and track disease in patients. Details of the study is published in latest issue of the journal of biophotonic and ACSNano.