Hair-Thin Sensors Detect Cancer Biomarkers for Real-Time Disease Monitoring
Microscopic sensors, thinner than a human hair, are being developed to revolutionize cancer diagnosis and monitoring by simultaneously detecting multiple biomarkers, researchers announced this week.
The sensors, a collaboration between the Institute for Photonics and Advanced Sensing at Adelaide University in Australia and the University of Stuttgart in Germany, utilize ultrafast 3D micro-printing technology to create structures directly onto optical fibers. This allows for the real-time monitoring of temperature and chemical changes within tissues, offering a potentially less invasive and more comprehensive approach to disease detection.
“This breakthrough could lead to next-generation medical tools that track disease, guide treatment and monitor the body in real time,” said Associate Professor Shahraam Afshar, the project’s lead researcher at Adelaide University, in a statement. “The sensors are able to provide reliable and clear information about the presence of disease in a minimally invasive way. This opens the pathway for smarter tools in healthcare, environmental monitoring and wearable technology.”
Current diagnostic methods often measure only one biomarker at a time, making it difficult to determine the root cause of detected changes. According to Professor Afshar, “It’s very difficult to measure or detect different signals coming from a living environment such as the human body simultaneously.” The new sensors overcome this limitation by providing a more holistic picture of the molecular changes occurring within tissue.
The technology relies on the principle that molecules emit light when interacting with by-products of cancer. The intensity of this light is directly proportional to the concentration of cancer cells, allowing researchers to quantify the presence of the disease by measuring the emitted light. This builds upon existing biomarker detection methods, offering a significant advancement in simultaneous multi-signal analysis.
The research, detailed in the journal Advanced Optical Materials, has received a boost from a recent $1.32 million Australian Research Council Linkage Infrastructure, Equipment and Facilities grant. This funding will establish a high-precision micro and nano printing facility at Adelaide University, enabling further development and refinement of the sensor technology.
“Having access to the latest laser printing technology will allow us to continue our research and hopefully detect even more biomarkers, such as changes to pH or oxidation-reduction,” Professor Afshar explained. “We will be able to create prototypes faster, build more complex structures and apply what we learn to the broader biomedical field.”
Researchers are aiming to collaborate with hospitals to refine the technology, with a goal of having it ready for clinical leverage within the next decade. The team anticipates the sensors will not only improve cancer diagnosis but also contribute to advancements in environmental monitoring and wearable health technology.