| AVS 57th International Symposium & Exhibition | |
| Biomaterial Interfaces | Thursday Sessions |
| Session BI2+NS-ThM |
| Session: | Quantitative Sensing at Biointerfaces |
| Presenter: | F. Ren, University of Florida |
| Authors: | F. Ren, University of Florida S.J. Pearton, University of Florida B.H. Chu, University of Florida C.Y. Chang, University of Florida W.J. Johnson, Nitronex A. Dabiran, SVT Associates P.P. Chow, SVT Associates |
| Correspondent: | Click to Email |
It is highly desirable to have a programmable, single chip sensor with an array of sensors for different purposes that is handheld and capable of wireless communication. This kind of sensor can be very useful for environmental, safety, and biomedical applications. For example, the sensor can be programmed in the doctor office for specific uses to give it to patients to use at home, transmitting the sensing results to their doctor directly to monitor the effectiveness of prescribed medicines. Thus, patients can get better, prompt and adequate health care. It can also reduce the number of unnecessary visits to the emergency room and the cost of the national health system. AlGaN/GaN high electron mobility transistor based sensors are good candidates for low cost, handheld, and wireless chemical and biomedical sensor due to their excellent thermal as well as chemical stability and sensitivity to the changes of ambient. We have demonstrated AlGaN/GaN HEMT based individual sensors for protein, DNA, kidney injury molecules, prostate cancer, pH values of the solutions, pH in the exhaled breath condensate, and mercury ions with specific surface functionalizations. Recently, we integrated ZnO nanorods with AlGaN/GaN HEMT to detect glucose. This approach offers a possibility of integrating AlGaN/GaN HEMT based sensors with ZnO nanorod sensors on a single “smart sensor chip” for bio-sensing applications.