We aim to create an implantable dosimeter for the Crocker Nuclear Laboratory’s proton beam therapy treatment. Currently, there is no closed loop solution to verify the dose treated to a specific in vivo location. By using ultrasound as a communication platform, we aim to enable real time in vivo dose readings to physicians. This can lead to better-localized irradiation treatment of cancer, and minimize irradiation to vital, healthy tissues.
We present a 32-channel carbon fiber monofilament-based intracortical neural recording array fabricated through a combination of bulk silicon microfabrication processing and microassembly. This device represents the first truly two-dimensional carbon fiber neural recording array. The five-micron diameter fibers are spaced at a pitch of 38 microns, four times denser than the state of the art one-dimensional arrays.
An estimated 15 million fracture injuries occur each year in the United States, of which up to 20% result in delayed or non-union. Current methods of monitoring include taking X-rays and making clinical observations, but radiographic techniques lag and physician examination of injury is fraught with subjectivity. There is a lack of consensus in how to assess the extent of healing that has taken place in a fracture, revealing the need for a diagnostic device that can reliably detect non-union in its early pathologic phases.